./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.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_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/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_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/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_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/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 77efdc70644c4d76b2b51ad31e4c72e04d88f3f8d138a44eb5f8e2813c15326a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:29:47,553 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:29:47,648 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:29:47,654 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:29:47,654 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:29:47,678 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:29:47,679 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:29:47,679 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:29:47,680 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:29:47,680 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:29:47,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:29:47,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:29:47,680 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:29:47,680 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:29:47,681 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:29:47,681 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:29:47,681 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:29:47,681 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:29:47,681 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:29:47,681 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:29:47,682 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:29:47,682 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:29:47,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:29:47,682 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:29:47,682 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:29:47,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:29:47,682 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:29:47,683 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:29:47,683 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:29:47,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:29:47,683 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:29:47,683 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:29:47,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:47,683 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:29:47,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:29:47,683 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:29:47,683 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:29:47,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:47,684 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:29:47,684 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:29:47,684 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:29:47,684 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:29:47,684 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:29:47,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:29:47,684 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:29:47,685 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:29:47,685 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:29:47,685 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:29:47,685 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_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/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 -> 77efdc70644c4d76b2b51ad31e4c72e04d88f3f8d138a44eb5f8e2813c15326a [2024-11-28 04:29:48,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:29:48,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:29:48,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:29:48,041 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:29:48,041 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:29:48,043 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.c [2024-11-28 04:29:51,085 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/data/3a9d4978a/d7f98a1c09bc4e3aacd206acc9fe265a/FLAGe1b1a57c2 [2024-11-28 04:29:51,780 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:29:51,781 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.c [2024-11-28 04:29:51,831 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/data/3a9d4978a/d7f98a1c09bc4e3aacd206acc9fe265a/FLAGe1b1a57c2 [2024-11-28 04:29:52,169 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/data/3a9d4978a/d7f98a1c09bc4e3aacd206acc9fe265a [2024-11-28 04:29:52,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:29:52,177 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:29:52,179 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:29:52,180 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:29:52,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:29:52,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:29:52" (1/1) ... [2024-11-28 04:29:52,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@85a9a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:52, skipping insertion in model container [2024-11-28 04:29:52,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:29:52" (1/1) ... [2024-11-28 04:29:52,361 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:29:52,756 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_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.c[11668,11681] [2024-11-28 04:29:52,852 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_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.c[18604,18617] [2024-11-28 04:29:53,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:29:53,666 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:29:53,707 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_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.c[11668,11681] [2024-11-28 04:29:53,730 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_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.c[18604,18617] [2024-11-28 04:29:54,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:29:54,269 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:29:54,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:54 WrapperNode [2024-11-28 04:29:54,271 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:29:54,272 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:29:54,272 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:29:54,272 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:29:54,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:54" (1/1) ... [2024-11-28 04:29:54,333 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:54" (1/1) ... [2024-11-28 04:29:54,882 INFO L138 Inliner]: procedures = 37, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5095 [2024-11-28 04:29:54,886 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:29:54,887 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:29:54,887 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:29:54,887 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:29:54,903 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:54" (1/1) ... [2024-11-28 04:29:54,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:54" (1/1) ... [2024-11-28 04:29:54,964 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:54" (1/1) ... [2024-11-28 04:29:55,156 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 04:29:55,157 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:54" (1/1) ... [2024-11-28 04:29:55,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:54" (1/1) ... [2024-11-28 04:29:55,351 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:54" (1/1) ... [2024-11-28 04:29:55,363 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:54" (1/1) ... [2024-11-28 04:29:55,443 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:54" (1/1) ... [2024-11-28 04:29:55,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:54" (1/1) ... [2024-11-28 04:29:55,516 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:54" (1/1) ... [2024-11-28 04:29:55,576 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:29:55,578 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:29:55,578 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:29:55,578 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:29:55,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:54" (1/1) ... [2024-11-28 04:29:55,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:55,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:55,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:29:55,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:29:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:29:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:29:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:29:55,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:29:55,903 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:29:55,905 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:30:02,634 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-11-28 04:30:02,634 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:30:02,681 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:30:02,682 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 04:30:02,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:30:02 BoogieIcfgContainer [2024-11-28 04:30:02,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:30:02,692 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:30:02,692 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:30:02,698 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:30:02,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:29:52" (1/3) ... [2024-11-28 04:30:02,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b85e0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:30:02, skipping insertion in model container [2024-11-28 04:30:02,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:54" (2/3) ... [2024-11-28 04:30:02,700 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b85e0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:30:02, skipping insertion in model container [2024-11-28 04:30:02,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:30:02" (3/3) ... [2024-11-28 04:30:02,702 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.c [2024-11-28 04:30:02,719 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:30:02,723 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label05.c that has 1 procedures, 901 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-28 04:30:02,810 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:30:02,825 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;@46181fd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:30:02,825 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 04:30:02,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 901 states, 898 states have (on average 1.9042316258351892) internal successors, (1710), 900 states have internal predecessors, (1710), 0 states have call successors, (0), 0 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 04:30:02,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 04:30:02,843 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:02,843 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 04:30:02,844 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:02,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:02,851 INFO L85 PathProgramCache]: Analyzing trace with hash 372784668, now seen corresponding path program 1 times [2024-11-28 04:30:02,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:02,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625060075] [2024-11-28 04:30:02,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:02,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:03,172 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 04:30:03,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:03,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625060075] [2024-11-28 04:30:03,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625060075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:03,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:03,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:30:03,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838245817] [2024-11-28 04:30:03,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:03,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:30:03,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:03,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:30:03,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:30:03,210 INFO L87 Difference]: Start difference. First operand has 901 states, 898 states have (on average 1.9042316258351892) internal successors, (1710), 900 states have internal predecessors, (1710), 0 states have call successors, (0), 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 04:30:03,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:03,345 INFO L93 Difference]: Finished difference Result 1763 states and 3348 transitions. [2024-11-28 04:30:03,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:30:03,348 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 04:30:03,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:03,372 INFO L225 Difference]: With dead ends: 1763 [2024-11-28 04:30:03,372 INFO L226 Difference]: Without dead ends: 835 [2024-11-28 04:30:03,379 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 04:30:03,382 INFO L435 NwaCegarLoop]: 1641 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, 1641 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 04:30:03,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:03,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-28 04:30:03,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 835. [2024-11-28 04:30:03,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 833 states have (on average 1.893157262905162) internal successors, (1577), 834 states have internal predecessors, (1577), 0 states have call successors, (0), 0 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 04:30:03,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1577 transitions. [2024-11-28 04:30:03,496 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1577 transitions. Word has length 24 [2024-11-28 04:30:03,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:03,497 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1577 transitions. [2024-11-28 04:30:03,497 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 04:30:03,498 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1577 transitions. [2024-11-28 04:30:03,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 04:30:03,499 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:03,499 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 04:30:03,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:30:03,502 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:03,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:03,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1621360038, now seen corresponding path program 1 times [2024-11-28 04:30:03,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:03,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213511173] [2024-11-28 04:30:03,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:03,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:03,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:03,852 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 04:30:03,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:03,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213511173] [2024-11-28 04:30:03,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213511173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:03,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:03,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:30:03,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424304287] [2024-11-28 04:30:03,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:03,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:30:03,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:03,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:30:03,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:30:03,855 INFO L87 Difference]: Start difference. First operand 835 states and 1577 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 04:30:04,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:04,034 INFO L93 Difference]: Finished difference Result 883 states and 1651 transitions. [2024-11-28 04:30:04,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:30:04,035 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 04:30:04,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:04,040 INFO L225 Difference]: With dead ends: 883 [2024-11-28 04:30:04,041 INFO L226 Difference]: Without dead ends: 835 [2024-11-28 04:30:04,042 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 04:30:04,043 INFO L435 NwaCegarLoop]: 1575 mSDtfsCounter, 0 mSDsluCounter, 4689 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6264 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 04:30:04,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6264 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:30:04,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-28 04:30:04,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 835. [2024-11-28 04:30:04,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 833 states have (on average 1.8559423769507803) internal successors, (1546), 834 states have internal predecessors, (1546), 0 states have call successors, (0), 0 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 04:30:04,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1546 transitions. [2024-11-28 04:30:04,071 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1546 transitions. Word has length 24 [2024-11-28 04:30:04,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:04,071 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1546 transitions. [2024-11-28 04:30:04,072 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 04:30:04,072 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1546 transitions. [2024-11-28 04:30:04,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-28 04:30:04,075 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:04,075 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 04:30:04,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:30:04,076 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:04,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:04,080 INFO L85 PathProgramCache]: Analyzing trace with hash 653480561, now seen corresponding path program 1 times [2024-11-28 04:30:04,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:04,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691095631] [2024-11-28 04:30:04,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:04,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:04,449 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 04:30:04,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:04,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691095631] [2024-11-28 04:30:04,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691095631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:04,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:04,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:30:04,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437934817] [2024-11-28 04:30:04,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:04,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:30:04,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:04,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:30:04,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:30:04,454 INFO L87 Difference]: Start difference. First operand 835 states and 1546 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 04:30:04,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:04,785 INFO L93 Difference]: Finished difference Result 1275 states and 2246 transitions. [2024-11-28 04:30:04,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:30:04,785 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 04:30:04,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:04,791 INFO L225 Difference]: With dead ends: 1275 [2024-11-28 04:30:04,792 INFO L226 Difference]: Without dead ends: 1231 [2024-11-28 04:30:04,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:30:04,793 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 7979 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7979 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:04,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7979 Valid, 2696 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:30:04,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2024-11-28 04:30:04,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 877. [2024-11-28 04:30:04,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 875 states have (on average 1.8434285714285714) internal successors, (1613), 876 states have internal predecessors, (1613), 0 states have call successors, (0), 0 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 04:30:04,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1613 transitions. [2024-11-28 04:30:04,826 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1613 transitions. Word has length 54 [2024-11-28 04:30:04,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:04,826 INFO L471 AbstractCegarLoop]: Abstraction has 877 states and 1613 transitions. [2024-11-28 04:30:04,826 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 04:30:04,827 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1613 transitions. [2024-11-28 04:30:04,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 04:30:04,828 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:04,828 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 04:30:04,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:30:04,829 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:04,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:04,829 INFO L85 PathProgramCache]: Analyzing trace with hash -486102655, now seen corresponding path program 1 times [2024-11-28 04:30:04,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:04,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952736051] [2024-11-28 04:30:04,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:04,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:04,960 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 04:30:04,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:04,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952736051] [2024-11-28 04:30:04,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952736051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:04,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:04,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:05,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145867660] [2024-11-28 04:30:05,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:05,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:30:05,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:05,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:30:05,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:30:05,032 INFO L87 Difference]: Start difference. First operand 877 states and 1613 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 04:30:05,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:05,098 INFO L93 Difference]: Finished difference Result 1038 states and 1868 transitions. [2024-11-28 04:30:05,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:30:05,099 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 04:30:05,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:05,104 INFO L225 Difference]: With dead ends: 1038 [2024-11-28 04:30:05,104 INFO L226 Difference]: Without dead ends: 952 [2024-11-28 04:30:05,105 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 04:30:05,109 INFO L435 NwaCegarLoop]: 1542 mSDtfsCounter, 1484 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:05,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1605 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:05,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-11-28 04:30:05,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 948. [2024-11-28 04:30:05,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 946 states have (on average 1.8213530655391121) internal successors, (1723), 947 states have internal predecessors, (1723), 0 states have call successors, (0), 0 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 04:30:05,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1723 transitions. [2024-11-28 04:30:05,150 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1723 transitions. Word has length 56 [2024-11-28 04:30:05,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:05,152 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1723 transitions. [2024-11-28 04:30:05,152 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 04:30:05,153 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1723 transitions. [2024-11-28 04:30:05,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 04:30:05,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:05,156 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 04:30:05,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:30:05,157 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:05,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:05,157 INFO L85 PathProgramCache]: Analyzing trace with hash -419609143, now seen corresponding path program 1 times [2024-11-28 04:30:05,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:05,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447695239] [2024-11-28 04:30:05,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:05,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:05,660 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 04:30:05,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:05,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447695239] [2024-11-28 04:30:05,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447695239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:05,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:05,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:30:05,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381986846] [2024-11-28 04:30:05,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:05,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:30:05,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:05,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:30:05,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:30:05,663 INFO L87 Difference]: Start difference. First operand 948 states and 1723 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 04:30:05,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:05,934 INFO L93 Difference]: Finished difference Result 1107 states and 1971 transitions. [2024-11-28 04:30:05,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:30:05,935 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 04:30:05,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:05,940 INFO L225 Difference]: With dead ends: 1107 [2024-11-28 04:30:05,940 INFO L226 Difference]: Without dead ends: 950 [2024-11-28 04:30:05,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:30:05,943 INFO L435 NwaCegarLoop]: 1539 mSDtfsCounter, 3000 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3000 SdHoareTripleChecker+Valid, 1813 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:05,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3000 Valid, 1813 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:30:05,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2024-11-28 04:30:05,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 948. [2024-11-28 04:30:05,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 946 states have (on average 1.8192389006342495) internal successors, (1721), 947 states have internal predecessors, (1721), 0 states have call successors, (0), 0 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 04:30:05,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1721 transitions. [2024-11-28 04:30:05,974 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1721 transitions. Word has length 56 [2024-11-28 04:30:05,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:05,975 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1721 transitions. [2024-11-28 04:30:05,975 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 04:30:05,975 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1721 transitions. [2024-11-28 04:30:05,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-28 04:30:05,976 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:05,976 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:05,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:30:05,976 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:05,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:05,977 INFO L85 PathProgramCache]: Analyzing trace with hash -537704617, now seen corresponding path program 1 times [2024-11-28 04:30:05,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:05,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407599110] [2024-11-28 04:30:05,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:05,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:06,382 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 04:30:06,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:06,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407599110] [2024-11-28 04:30:06,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407599110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:06,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:06,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:30:06,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104731923] [2024-11-28 04:30:06,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:06,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:30:06,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:06,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:30:06,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:30:06,384 INFO L87 Difference]: Start difference. First operand 948 states and 1721 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 04:30:06,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:06,499 INFO L93 Difference]: Finished difference Result 956 states and 1730 transitions. [2024-11-28 04:30:06,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:30:06,500 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 04:30:06,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:06,504 INFO L225 Difference]: With dead ends: 956 [2024-11-28 04:30:06,505 INFO L226 Difference]: Without dead ends: 954 [2024-11-28 04:30:06,505 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 04:30:06,506 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 0 mSDsluCounter, 9227 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10767 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:06,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10767 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:06,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2024-11-28 04:30:06,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 954. [2024-11-28 04:30:06,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 952 states have (on average 1.8130252100840336) internal successors, (1726), 953 states have internal predecessors, (1726), 0 states have call successors, (0), 0 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 04:30:06,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1726 transitions. [2024-11-28 04:30:06,632 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1726 transitions. Word has length 57 [2024-11-28 04:30:06,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:06,632 INFO L471 AbstractCegarLoop]: Abstraction has 954 states and 1726 transitions. [2024-11-28 04:30:06,632 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 04:30:06,633 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1726 transitions. [2024-11-28 04:30:06,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 04:30:06,638 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:06,638 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 04:30:06,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:30:06,638 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:06,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:06,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1148329065, now seen corresponding path program 1 times [2024-11-28 04:30:06,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:06,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286605004] [2024-11-28 04:30:06,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:06,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:06,797 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 04:30:06,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:06,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286605004] [2024-11-28 04:30:06,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286605004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:06,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:06,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:06,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399852837] [2024-11-28 04:30:06,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:06,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:30:06,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:06,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:30:06,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:30:06,800 INFO L87 Difference]: Start difference. First operand 954 states and 1726 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 04:30:06,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:06,846 INFO L93 Difference]: Finished difference Result 1264 states and 2198 transitions. [2024-11-28 04:30:06,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:30:06,847 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 04:30:06,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:06,853 INFO L225 Difference]: With dead ends: 1264 [2024-11-28 04:30:06,853 INFO L226 Difference]: Without dead ends: 1101 [2024-11-28 04:30:06,854 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 04:30:06,858 INFO L435 NwaCegarLoop]: 1593 mSDtfsCounter, 1497 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 1668 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 04:30:06,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 1668 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:06,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2024-11-28 04:30:06,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 1099. [2024-11-28 04:30:06,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 1097 states have (on average 1.7711941659070192) internal successors, (1943), 1098 states have internal predecessors, (1943), 0 states have call successors, (0), 0 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 04:30:06,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1943 transitions. [2024-11-28 04:30:06,915 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1943 transitions. Word has length 58 [2024-11-28 04:30:06,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:06,916 INFO L471 AbstractCegarLoop]: Abstraction has 1099 states and 1943 transitions. [2024-11-28 04:30:06,916 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 04:30:06,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1943 transitions. [2024-11-28 04:30:06,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 04:30:06,917 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:06,918 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 04:30:06,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:30:06,918 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:06,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:06,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1908376215, now seen corresponding path program 1 times [2024-11-28 04:30:06,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:06,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400632521] [2024-11-28 04:30:06,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:06,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:07,037 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 04:30:07,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:07,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400632521] [2024-11-28 04:30:07,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400632521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:07,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:07,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:07,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37230460] [2024-11-28 04:30:07,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:07,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:30:07,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:07,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:30:07,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:30:07,042 INFO L87 Difference]: Start difference. First operand 1099 states and 1943 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 04:30:07,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:07,090 INFO L93 Difference]: Finished difference Result 1683 states and 2821 transitions. [2024-11-28 04:30:07,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:30:07,090 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 04:30:07,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:07,104 INFO L225 Difference]: With dead ends: 1683 [2024-11-28 04:30:07,104 INFO L226 Difference]: Without dead ends: 1375 [2024-11-28 04:30:07,105 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 04:30:07,106 INFO L435 NwaCegarLoop]: 1591 mSDtfsCounter, 1495 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1670 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 04:30:07,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1670 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:07,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2024-11-28 04:30:07,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1373. [2024-11-28 04:30:07,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1373 states, 1371 states have (on average 1.7104303428154632) internal successors, (2345), 1372 states have internal predecessors, (2345), 0 states have call successors, (0), 0 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 04:30:07,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 2345 transitions. [2024-11-28 04:30:07,173 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 2345 transitions. Word has length 58 [2024-11-28 04:30:07,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:07,173 INFO L471 AbstractCegarLoop]: Abstraction has 1373 states and 2345 transitions. [2024-11-28 04:30:07,173 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 04:30:07,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 2345 transitions. [2024-11-28 04:30:07,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 04:30:07,174 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:07,174 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 04:30:07,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:30:07,174 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:07,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:07,175 INFO L85 PathProgramCache]: Analyzing trace with hash 171122281, now seen corresponding path program 1 times [2024-11-28 04:30:07,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:07,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570391169] [2024-11-28 04:30:07,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:07,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:07,242 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 04:30:07,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:07,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570391169] [2024-11-28 04:30:07,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570391169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:07,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:07,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:07,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142545145] [2024-11-28 04:30:07,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:07,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:30:07,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:07,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:30:07,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:30:07,247 INFO L87 Difference]: Start difference. First operand 1373 states and 2345 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 04:30:07,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:07,298 INFO L93 Difference]: Finished difference Result 2473 states and 3971 transitions. [2024-11-28 04:30:07,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:30:07,299 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 04:30:07,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:07,307 INFO L225 Difference]: With dead ends: 2473 [2024-11-28 04:30:07,307 INFO L226 Difference]: Without dead ends: 1891 [2024-11-28 04:30:07,309 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 04:30:07,310 INFO L435 NwaCegarLoop]: 1589 mSDtfsCounter, 1493 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1672 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 04:30:07,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1672 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:07,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2024-11-28 04:30:07,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1889. [2024-11-28 04:30:07,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1887 states have (on average 1.634870164281929) internal successors, (3085), 1888 states have internal predecessors, (3085), 0 states have call successors, (0), 0 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 04:30:07,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 3085 transitions. [2024-11-28 04:30:07,378 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 3085 transitions. Word has length 58 [2024-11-28 04:30:07,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:07,379 INFO L471 AbstractCegarLoop]: Abstraction has 1889 states and 3085 transitions. [2024-11-28 04:30:07,379 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 04:30:07,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 3085 transitions. [2024-11-28 04:30:07,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 04:30:07,380 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:07,380 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 04:30:07,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:30:07,380 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:07,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:07,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1952055145, now seen corresponding path program 1 times [2024-11-28 04:30:07,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:07,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077695975] [2024-11-28 04:30:07,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:07,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:07,471 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 04:30:07,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:07,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077695975] [2024-11-28 04:30:07,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077695975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:07,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:07,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:07,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068331816] [2024-11-28 04:30:07,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:07,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:30:07,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:07,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:30:07,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:30:07,473 INFO L87 Difference]: Start difference. First operand 1889 states and 3085 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 04:30:07,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:07,554 INFO L93 Difference]: Finished difference Result 3957 states and 6079 transitions. [2024-11-28 04:30:07,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:30:07,555 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 04:30:07,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:07,566 INFO L225 Difference]: With dead ends: 3957 [2024-11-28 04:30:07,567 INFO L226 Difference]: Without dead ends: 2859 [2024-11-28 04:30:07,570 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 04:30:07,570 INFO L435 NwaCegarLoop]: 1587 mSDtfsCounter, 1491 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 1674 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 04:30:07,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 1674 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:07,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2859 states. [2024-11-28 04:30:07,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2859 to 2857. [2024-11-28 04:30:07,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2857 states, 2855 states have (on average 1.5541155866900176) internal successors, (4437), 2856 states have internal predecessors, (4437), 0 states have call successors, (0), 0 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 04:30:07,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2857 states to 2857 states and 4437 transitions. [2024-11-28 04:30:07,671 INFO L78 Accepts]: Start accepts. Automaton has 2857 states and 4437 transitions. Word has length 58 [2024-11-28 04:30:07,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:07,672 INFO L471 AbstractCegarLoop]: Abstraction has 2857 states and 4437 transitions. [2024-11-28 04:30:07,672 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 04:30:07,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2857 states and 4437 transitions. [2024-11-28 04:30:07,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-28 04:30:07,674 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:07,674 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:07,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:30:07,674 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:07,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:07,675 INFO L85 PathProgramCache]: Analyzing trace with hash -783970460, now seen corresponding path program 1 times [2024-11-28 04:30:07,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:07,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301572452] [2024-11-28 04:30:07,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:07,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:07,752 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 04:30:07,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:07,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301572452] [2024-11-28 04:30:07,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301572452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:07,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:07,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:07,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227658036] [2024-11-28 04:30:07,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:07,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:30:07,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:07,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:30:07,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:30:07,755 INFO L87 Difference]: Start difference. First operand 2857 states and 4437 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:30:07,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:07,843 INFO L93 Difference]: Finished difference Result 5040 states and 7611 transitions. [2024-11-28 04:30:07,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:30:07,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-28 04:30:07,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:07,860 INFO L225 Difference]: With dead ends: 5040 [2024-11-28 04:30:07,861 INFO L226 Difference]: Without dead ends: 3853 [2024-11-28 04:30:07,863 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 04:30:07,864 INFO L435 NwaCegarLoop]: 1598 mSDtfsCounter, 1496 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1669 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 04:30:07,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1669 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:07,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3853 states. [2024-11-28 04:30:08,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3853 to 3851. [2024-11-28 04:30:08,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 3849 states have (on average 1.5149389451805664) internal successors, (5831), 3850 states have internal predecessors, (5831), 0 states have call successors, (0), 0 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 04:30:08,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 5831 transitions. [2024-11-28 04:30:08,066 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 5831 transitions. Word has length 60 [2024-11-28 04:30:08,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:08,066 INFO L471 AbstractCegarLoop]: Abstraction has 3851 states and 5831 transitions. [2024-11-28 04:30:08,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:30:08,066 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 5831 transitions. [2024-11-28 04:30:08,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-28 04:30:08,067 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:08,067 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:08,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:30:08,067 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:08,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:08,068 INFO L85 PathProgramCache]: Analyzing trace with hash -476681499, now seen corresponding path program 1 times [2024-11-28 04:30:08,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:08,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849805202] [2024-11-28 04:30:08,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:08,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:08,240 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 04:30:08,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:08,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849805202] [2024-11-28 04:30:08,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849805202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:08,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:08,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:08,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87905211] [2024-11-28 04:30:08,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:08,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:30:08,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:08,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:30:08,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:30:08,242 INFO L87 Difference]: Start difference. First operand 3851 states and 5831 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:30:17,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:17,168 INFO L93 Difference]: Finished difference Result 6106 states and 10140 transitions. [2024-11-28 04:30:17,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:30:17,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-28 04:30:17,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:17,189 INFO L225 Difference]: With dead ends: 6106 [2024-11-28 04:30:17,189 INFO L226 Difference]: Without dead ends: 5353 [2024-11-28 04:30:17,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:30:17,192 INFO L435 NwaCegarLoop]: 800 mSDtfsCounter, 2395 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5518 mSolverCounterSat, 1100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 6618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1100 IncrementalHoareTripleChecker+Valid, 5518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:17,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2395 Valid, 818 Invalid, 6618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1100 Valid, 5518 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2024-11-28 04:30:17,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5353 states. [2024-11-28 04:30:17,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5353 to 5353. [2024-11-28 04:30:17,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5353 states, 5351 states have (on average 1.4870117735002804) internal successors, (7957), 5352 states have internal predecessors, (7957), 0 states have call successors, (0), 0 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 04:30:17,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5353 states to 5353 states and 7957 transitions. [2024-11-28 04:30:17,381 INFO L78 Accepts]: Start accepts. Automaton has 5353 states and 7957 transitions. Word has length 60 [2024-11-28 04:30:17,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:17,381 INFO L471 AbstractCegarLoop]: Abstraction has 5353 states and 7957 transitions. [2024-11-28 04:30:17,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:30:17,383 INFO L276 IsEmpty]: Start isEmpty. Operand 5353 states and 7957 transitions. [2024-11-28 04:30:17,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 04:30:17,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:17,390 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] [2024-11-28 04:30:17,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:30:17,390 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:17,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:17,391 INFO L85 PathProgramCache]: Analyzing trace with hash -2113574007, now seen corresponding path program 1 times [2024-11-28 04:30:17,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:17,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852027966] [2024-11-28 04:30:17,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:17,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:17,661 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:30:17,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:17,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852027966] [2024-11-28 04:30:17,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852027966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:17,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:17,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:30:17,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438559660] [2024-11-28 04:30:17,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:17,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:30:17,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:17,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:30:17,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:30:17,664 INFO L87 Difference]: Start difference. First operand 5353 states and 7957 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 04:30:18,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:18,161 INFO L93 Difference]: Finished difference Result 21301 states and 30619 transitions. [2024-11-28 04:30:18,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:30:18,162 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 77 [2024-11-28 04:30:18,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:18,231 INFO L225 Difference]: With dead ends: 21301 [2024-11-28 04:30:18,231 INFO L226 Difference]: Without dead ends: 18243 [2024-11-28 04:30:18,239 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 04:30:18,239 INFO L435 NwaCegarLoop]: 1613 mSDtfsCounter, 6332 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6332 SdHoareTripleChecker+Valid, 3636 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:18,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6332 Valid, 3636 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:30:18,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18243 states. [2024-11-28 04:30:18,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18243 to 8409. [2024-11-28 04:30:18,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8409 states, 8407 states have (on average 1.4584275008921137) internal successors, (12261), 8408 states have internal predecessors, (12261), 0 states have call successors, (0), 0 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 04:30:18,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8409 states to 8409 states and 12261 transitions. [2024-11-28 04:30:18,741 INFO L78 Accepts]: Start accepts. Automaton has 8409 states and 12261 transitions. Word has length 77 [2024-11-28 04:30:18,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:18,741 INFO L471 AbstractCegarLoop]: Abstraction has 8409 states and 12261 transitions. [2024-11-28 04:30:18,742 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 04:30:18,743 INFO L276 IsEmpty]: Start isEmpty. Operand 8409 states and 12261 transitions. [2024-11-28 04:30:18,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 04:30:18,745 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:18,745 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] [2024-11-28 04:30:18,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:30:18,746 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:18,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:18,747 INFO L85 PathProgramCache]: Analyzing trace with hash -875311991, now seen corresponding path program 1 times [2024-11-28 04:30:18,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:18,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229797620] [2024-11-28 04:30:18,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:18,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:18,967 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 04:30:18,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:18,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229797620] [2024-11-28 04:30:18,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229797620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:18,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:18,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:30:18,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934146149] [2024-11-28 04:30:18,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:18,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:30:18,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:18,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:30:18,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:30:18,970 INFO L87 Difference]: Start difference. First operand 8409 states and 12261 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 04:30:19,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:19,931 INFO L93 Difference]: Finished difference Result 24357 states and 34923 transitions. [2024-11-28 04:30:19,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:30:19,932 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 77 [2024-11-28 04:30:19,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:20,066 INFO L225 Difference]: With dead ends: 24357 [2024-11-28 04:30:20,066 INFO L226 Difference]: Without dead ends: 21299 [2024-11-28 04:30:20,084 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 04:30:20,085 INFO L435 NwaCegarLoop]: 1610 mSDtfsCounter, 6353 mSDsluCounter, 1970 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6353 SdHoareTripleChecker+Valid, 3580 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:20,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6353 Valid, 3580 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:30:20,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21299 states. [2024-11-28 04:30:20,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21299 to 13001. [2024-11-28 04:30:20,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13001 states, 12999 states have (on average 1.436802830986999) internal successors, (18677), 13000 states have internal predecessors, (18677), 0 states have call successors, (0), 0 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 04:30:20,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13001 states to 13001 states and 18677 transitions. [2024-11-28 04:30:20,682 INFO L78 Accepts]: Start accepts. Automaton has 13001 states and 18677 transitions. Word has length 77 [2024-11-28 04:30:20,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:20,683 INFO L471 AbstractCegarLoop]: Abstraction has 13001 states and 18677 transitions. [2024-11-28 04:30:20,683 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 04:30:20,684 INFO L276 IsEmpty]: Start isEmpty. Operand 13001 states and 18677 transitions. [2024-11-28 04:30:20,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 04:30:20,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:20,686 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] [2024-11-28 04:30:20,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:30:20,687 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:20,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:20,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1204186505, now seen corresponding path program 1 times [2024-11-28 04:30:20,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:20,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43931104] [2024-11-28 04:30:20,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:20,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:20,908 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 04:30:20,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:20,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43931104] [2024-11-28 04:30:20,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43931104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:20,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:20,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:30:20,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985713065] [2024-11-28 04:30:20,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:20,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:30:20,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:20,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:30:20,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:30:20,910 INFO L87 Difference]: Start difference. First operand 13001 states and 18677 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 04:30:21,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:21,690 INFO L93 Difference]: Finished difference Result 27413 states and 39227 transitions. [2024-11-28 04:30:21,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:30:21,690 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 77 [2024-11-28 04:30:21,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:21,762 INFO L225 Difference]: With dead ends: 27413 [2024-11-28 04:30:21,762 INFO L226 Difference]: Without dead ends: 24355 [2024-11-28 04:30:21,774 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 04:30:21,775 INFO L435 NwaCegarLoop]: 1607 mSDtfsCounter, 6394 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6394 SdHoareTripleChecker+Valid, 3561 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:21,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6394 Valid, 3561 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:30:21,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24355 states. [2024-11-28 04:30:22,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24355 to 16057. [2024-11-28 04:30:22,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16057 states, 16055 states have (on average 1.4313920896916847) internal successors, (22981), 16056 states have internal predecessors, (22981), 0 states have call successors, (0), 0 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 04:30:22,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16057 states to 16057 states and 22981 transitions. [2024-11-28 04:30:22,570 INFO L78 Accepts]: Start accepts. Automaton has 16057 states and 22981 transitions. Word has length 77 [2024-11-28 04:30:22,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:22,570 INFO L471 AbstractCegarLoop]: Abstraction has 16057 states and 22981 transitions. [2024-11-28 04:30:22,570 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 04:30:22,570 INFO L276 IsEmpty]: Start isEmpty. Operand 16057 states and 22981 transitions. [2024-11-28 04:30:22,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 04:30:22,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:22,577 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] [2024-11-28 04:30:22,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:30:22,577 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:22,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:22,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1309847927, now seen corresponding path program 1 times [2024-11-28 04:30:22,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:22,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391120448] [2024-11-28 04:30:22,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:22,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:22,871 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 04:30:22,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:22,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391120448] [2024-11-28 04:30:22,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391120448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:22,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:22,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:30:22,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119853995] [2024-11-28 04:30:22,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:22,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:30:22,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:22,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:30:22,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:30:22,875 INFO L87 Difference]: Start difference. First operand 16057 states and 22981 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 04:30:23,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:23,526 INFO L93 Difference]: Finished difference Result 30469 states and 43531 transitions. [2024-11-28 04:30:23,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:30:23,527 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 77 [2024-11-28 04:30:23,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:23,591 INFO L225 Difference]: With dead ends: 30469 [2024-11-28 04:30:23,591 INFO L226 Difference]: Without dead ends: 27411 [2024-11-28 04:30:23,600 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 04:30:23,601 INFO L435 NwaCegarLoop]: 1611 mSDtfsCounter, 6347 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6347 SdHoareTripleChecker+Valid, 3595 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:23,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6347 Valid, 3595 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:30:23,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27411 states. [2024-11-28 04:30:24,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27411 to 19113. [2024-11-28 04:30:24,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19113 states, 19111 states have (on average 1.4277117890220292) internal successors, (27285), 19112 states have internal predecessors, (27285), 0 states have call successors, (0), 0 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 04:30:24,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19113 states to 19113 states and 27285 transitions. [2024-11-28 04:30:24,506 INFO L78 Accepts]: Start accepts. Automaton has 19113 states and 27285 transitions. Word has length 77 [2024-11-28 04:30:24,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:24,506 INFO L471 AbstractCegarLoop]: Abstraction has 19113 states and 27285 transitions. [2024-11-28 04:30:24,506 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 04:30:24,506 INFO L276 IsEmpty]: Start isEmpty. Operand 19113 states and 27285 transitions. [2024-11-28 04:30:24,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 04:30:24,510 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:24,511 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 04:30:24,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:30:24,511 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:24,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:24,514 INFO L85 PathProgramCache]: Analyzing trace with hash -974292767, now seen corresponding path program 1 times [2024-11-28 04:30:24,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:24,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270366481] [2024-11-28 04:30:24,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:24,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:24,887 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:24,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:24,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270366481] [2024-11-28 04:30:24,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270366481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:24,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:24,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:24,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690933478] [2024-11-28 04:30:24,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:24,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:30:24,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:24,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:30:24,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:30:24,893 INFO L87 Difference]: Start difference. First operand 19113 states and 27285 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 04:30:25,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:25,381 INFO L93 Difference]: Finished difference Result 31105 states and 44380 transitions. [2024-11-28 04:30:25,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:30:25,381 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 04:30:25,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:25,420 INFO L225 Difference]: With dead ends: 31105 [2024-11-28 04:30:25,420 INFO L226 Difference]: Without dead ends: 14287 [2024-11-28 04:30:25,436 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 04:30:25,438 INFO L435 NwaCegarLoop]: 1586 mSDtfsCounter, 50 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3117 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 04:30:25,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3117 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:25,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14287 states. [2024-11-28 04:30:25,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14287 to 14285. [2024-11-28 04:30:25,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14285 states, 14283 states have (on average 1.4367429811664216) internal successors, (20521), 14284 states have internal predecessors, (20521), 0 states have call successors, (0), 0 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 04:30:25,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14285 states to 14285 states and 20521 transitions. [2024-11-28 04:30:25,853 INFO L78 Accepts]: Start accepts. Automaton has 14285 states and 20521 transitions. Word has length 79 [2024-11-28 04:30:25,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:25,854 INFO L471 AbstractCegarLoop]: Abstraction has 14285 states and 20521 transitions. [2024-11-28 04:30:25,854 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 04:30:25,854 INFO L276 IsEmpty]: Start isEmpty. Operand 14285 states and 20521 transitions. [2024-11-28 04:30:25,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 04:30:25,856 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:25,856 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] [2024-11-28 04:30:25,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:30:25,857 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:25,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:25,857 INFO L85 PathProgramCache]: Analyzing trace with hash -146696572, now seen corresponding path program 1 times [2024-11-28 04:30:25,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:25,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049106426] [2024-11-28 04:30:25,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:25,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:26,029 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:30:26,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:26,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049106426] [2024-11-28 04:30:26,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049106426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:26,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:26,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:30:26,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459267002] [2024-11-28 04:30:26,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:26,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:30:26,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:26,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:30:26,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:30:26,031 INFO L87 Difference]: Start difference. First operand 14285 states and 20521 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 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 04:30:26,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:26,750 INFO L93 Difference]: Finished difference Result 25177 states and 36047 transitions. [2024-11-28 04:30:26,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:30:26,751 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 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 04:30:26,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:26,789 INFO L225 Difference]: With dead ends: 25177 [2024-11-28 04:30:26,789 INFO L226 Difference]: Without dead ends: 22999 [2024-11-28 04:30:26,795 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 04:30:26,796 INFO L435 NwaCegarLoop]: 1605 mSDtfsCounter, 6335 mSDsluCounter, 2120 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6335 SdHoareTripleChecker+Valid, 3725 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:26,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6335 Valid, 3725 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:30:26,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22999 states. [2024-11-28 04:30:27,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22999 to 16461. [2024-11-28 04:30:27,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16461 states, 16459 states have (on average 1.4334406707576401) internal successors, (23593), 16460 states have internal predecessors, (23593), 0 states have call successors, (0), 0 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 04:30:27,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16461 states to 16461 states and 23593 transitions. [2024-11-28 04:30:27,372 INFO L78 Accepts]: Start accepts. Automaton has 16461 states and 23593 transitions. Word has length 79 [2024-11-28 04:30:27,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:27,373 INFO L471 AbstractCegarLoop]: Abstraction has 16461 states and 23593 transitions. [2024-11-28 04:30:27,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 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 04:30:27,373 INFO L276 IsEmpty]: Start isEmpty. Operand 16461 states and 23593 transitions. [2024-11-28 04:30:27,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 04:30:27,375 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:27,376 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] [2024-11-28 04:30:27,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:30:27,376 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:27,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:27,376 INFO L85 PathProgramCache]: Analyzing trace with hash 762759661, now seen corresponding path program 1 times [2024-11-28 04:30:27,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:27,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911764493] [2024-11-28 04:30:27,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:27,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:27,495 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:27,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:27,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911764493] [2024-11-28 04:30:27,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911764493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:27,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:27,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:27,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071473642] [2024-11-28 04:30:27,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:27,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:30:27,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:27,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:30:27,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:30:27,497 INFO L87 Difference]: Start difference. First operand 16461 states and 23593 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 04:30:27,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:27,708 INFO L93 Difference]: Finished difference Result 23537 states and 33579 transitions. [2024-11-28 04:30:27,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:30:27,709 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 04:30:27,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:27,730 INFO L225 Difference]: With dead ends: 23537 [2024-11-28 04:30:27,731 INFO L226 Difference]: Without dead ends: 9391 [2024-11-28 04:30:27,741 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 04:30:27,741 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 45 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3102 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 04:30:27,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3102 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:27,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9391 states. [2024-11-28 04:30:28,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9391 to 9389. [2024-11-28 04:30:28,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9389 states, 9387 states have (on average 1.4386918078193247) internal successors, (13505), 9388 states have internal predecessors, (13505), 0 states have call successors, (0), 0 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 04:30:28,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9389 states to 9389 states and 13505 transitions. [2024-11-28 04:30:28,281 INFO L78 Accepts]: Start accepts. Automaton has 9389 states and 13505 transitions. Word has length 80 [2024-11-28 04:30:28,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:28,281 INFO L471 AbstractCegarLoop]: Abstraction has 9389 states and 13505 transitions. [2024-11-28 04:30:28,281 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 04:30:28,281 INFO L276 IsEmpty]: Start isEmpty. Operand 9389 states and 13505 transitions. [2024-11-28 04:30:28,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-28 04:30:28,283 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:28,286 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] [2024-11-28 04:30:28,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 04:30:28,286 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:28,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:28,287 INFO L85 PathProgramCache]: Analyzing trace with hash -154885185, now seen corresponding path program 1 times [2024-11-28 04:30:28,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:28,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387113333] [2024-11-28 04:30:28,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:28,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:28,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:28,429 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:28,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:28,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387113333] [2024-11-28 04:30:28,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387113333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:28,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:28,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:28,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536818408] [2024-11-28 04:30:28,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:28,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:30:28,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:28,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:30:28,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:30:28,431 INFO L87 Difference]: Start difference. First operand 9389 states and 13505 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:30:28,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:28,628 INFO L93 Difference]: Finished difference Result 12929 states and 18447 transitions. [2024-11-28 04:30:28,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:30:28,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-28 04:30:28,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:28,640 INFO L225 Difference]: With dead ends: 12929 [2024-11-28 04:30:28,640 INFO L226 Difference]: Without dead ends: 5855 [2024-11-28 04:30:28,646 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 04:30:28,650 INFO L435 NwaCegarLoop]: 1572 mSDtfsCounter, 42 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3087 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 04:30:28,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 3087 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:28,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5855 states. [2024-11-28 04:30:28,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5855 to 5853. [2024-11-28 04:30:28,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5853 states, 5851 states have (on average 1.4549649632541446) internal successors, (8513), 5852 states have internal predecessors, (8513), 0 states have call successors, (0), 0 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 04:30:28,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5853 states to 5853 states and 8513 transitions. [2024-11-28 04:30:28,826 INFO L78 Accepts]: Start accepts. Automaton has 5853 states and 8513 transitions. Word has length 82 [2024-11-28 04:30:28,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:28,826 INFO L471 AbstractCegarLoop]: Abstraction has 5853 states and 8513 transitions. [2024-11-28 04:30:28,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:30:28,826 INFO L276 IsEmpty]: Start isEmpty. Operand 5853 states and 8513 transitions. [2024-11-28 04:30:28,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-28 04:30:28,828 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:28,828 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] [2024-11-28 04:30:28,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 04:30:28,831 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:28,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:28,831 INFO L85 PathProgramCache]: Analyzing trace with hash 673860625, now seen corresponding path program 1 times [2024-11-28 04:30:28,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:28,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608368521] [2024-11-28 04:30:28,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:28,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:28,981 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:28,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:28,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608368521] [2024-11-28 04:30:28,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608368521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:28,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:28,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:28,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387495405] [2024-11-28 04:30:28,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:28,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:30:28,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:28,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:30:28,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:30:28,984 INFO L87 Difference]: Start difference. First operand 5853 states and 8513 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 04:30:29,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:29,066 INFO L93 Difference]: Finished difference Result 7625 states and 10959 transitions. [2024-11-28 04:30:29,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:30:29,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-28 04:30:29,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:29,077 INFO L225 Difference]: With dead ends: 7625 [2024-11-28 04:30:29,078 INFO L226 Difference]: Without dead ends: 4087 [2024-11-28 04:30:29,081 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 04:30:29,083 INFO L435 NwaCegarLoop]: 1565 mSDtfsCounter, 39 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3072 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 04:30:29,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3072 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:29,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4087 states. [2024-11-28 04:30:29,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4087 to 4085. [2024-11-28 04:30:29,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4085 states, 4083 states have (on average 1.4800391868723977) internal successors, (6043), 4084 states have internal predecessors, (6043), 0 states have call successors, (0), 0 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 04:30:29,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4085 states to 4085 states and 6043 transitions. [2024-11-28 04:30:29,175 INFO L78 Accepts]: Start accepts. Automaton has 4085 states and 6043 transitions. Word has length 84 [2024-11-28 04:30:29,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:29,176 INFO L471 AbstractCegarLoop]: Abstraction has 4085 states and 6043 transitions. [2024-11-28 04:30:29,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 04:30:29,176 INFO L276 IsEmpty]: Start isEmpty. Operand 4085 states and 6043 transitions. [2024-11-28 04:30:29,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 04:30:29,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:29,178 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] [2024-11-28 04:30:29,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 04:30:29,179 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:29,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:29,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1584456419, now seen corresponding path program 1 times [2024-11-28 04:30:29,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:29,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540910326] [2024-11-28 04:30:29,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:29,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:29,290 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:29,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:29,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540910326] [2024-11-28 04:30:29,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540910326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:29,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:30:29,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:30:29,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14206219] [2024-11-28 04:30:29,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:29,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:30:29,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:29,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:30:29,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:30:29,292 INFO L87 Difference]: Start difference. First operand 4085 states and 6043 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 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 04:30:29,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:29,345 INFO L93 Difference]: Finished difference Result 4973 states and 7254 transitions. [2024-11-28 04:30:29,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:30:29,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-28 04:30:29,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:29,358 INFO L225 Difference]: With dead ends: 4973 [2024-11-28 04:30:29,358 INFO L226 Difference]: Without dead ends: 3203 [2024-11-28 04:30:29,360 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 04:30:29,364 INFO L435 NwaCegarLoop]: 1558 mSDtfsCounter, 36 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3057 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 04:30:29,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3057 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:30:29,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3203 states. [2024-11-28 04:30:29,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3203 to 3201. [2024-11-28 04:30:29,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3201 states, 3199 states have (on average 1.5070334479524852) internal successors, (4821), 3200 states have internal predecessors, (4821), 0 states have call successors, (0), 0 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 04:30:29,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3201 states to 3201 states and 4821 transitions. [2024-11-28 04:30:29,430 INFO L78 Accepts]: Start accepts. Automaton has 3201 states and 4821 transitions. Word has length 86 [2024-11-28 04:30:29,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:29,431 INFO L471 AbstractCegarLoop]: Abstraction has 3201 states and 4821 transitions. [2024-11-28 04:30:29,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 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 04:30:29,431 INFO L276 IsEmpty]: Start isEmpty. Operand 3201 states and 4821 transitions. [2024-11-28 04:30:29,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:30:29,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:29,432 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 04:30:29,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 04:30:29,433 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:29,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:29,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1438021579, now seen corresponding path program 1 times [2024-11-28 04:30:29,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:29,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424017788] [2024-11-28 04:30:29,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:29,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:30,886 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:30,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:30,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424017788] [2024-11-28 04:30:30,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424017788] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:30,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146719438] [2024-11-28 04:30:30,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:30,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:30,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:30,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:30,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:30:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:31,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:30:31,095 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:31,877 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:31,878 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:33,727 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:33,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146719438] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:30:33,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:30:33,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-28 04:30:33,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522998832] [2024-11-28 04:30:33,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:33,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 04:30:33,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:33,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 04:30:33,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:30:33,730 INFO L87 Difference]: Start difference. First operand 3201 states and 4821 transitions. Second operand has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 0 states have call successors, (0), 0 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 04:30:36,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:36,069 INFO L93 Difference]: Finished difference Result 6959 states and 9885 transitions. [2024-11-28 04:30:36,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 04:30:36,070 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 0 states have call successors, (0), 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 04:30:36,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:36,083 INFO L225 Difference]: With dead ends: 6959 [2024-11-28 04:30:36,083 INFO L226 Difference]: Without dead ends: 6073 [2024-11-28 04:30:36,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=657, Invalid=2423, Unknown=0, NotChecked=0, Total=3080 [2024-11-28 04:30:36,087 INFO L435 NwaCegarLoop]: 1502 mSDtfsCounter, 18843 mSDsluCounter, 4977 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18843 SdHoareTripleChecker+Valid, 6479 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:36,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18843 Valid, 6479 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:30:36,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6073 states. [2024-11-28 04:30:36,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6073 to 6035. [2024-11-28 04:30:36,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6035 states, 6033 states have (on average 1.426156141223272) internal successors, (8604), 6034 states have internal predecessors, (8604), 0 states have call successors, (0), 0 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 04:30:36,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6035 states to 6035 states and 8604 transitions. [2024-11-28 04:30:36,355 INFO L78 Accepts]: Start accepts. Automaton has 6035 states and 8604 transitions. Word has length 88 [2024-11-28 04:30:36,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:36,356 INFO L471 AbstractCegarLoop]: Abstraction has 6035 states and 8604 transitions. [2024-11-28 04:30:36,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 0 states have call successors, (0), 0 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 04:30:36,356 INFO L276 IsEmpty]: Start isEmpty. Operand 6035 states and 8604 transitions. [2024-11-28 04:30:36,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 04:30:36,359 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:36,359 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 04:30:36,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:30:36,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-28 04:30:36,564 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:36,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:36,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1982597732, now seen corresponding path program 1 times [2024-11-28 04:30:36,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:36,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685083736] [2024-11-28 04:30:36,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:36,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:37,181 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:37,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:37,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685083736] [2024-11-28 04:30:37,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685083736] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:37,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798485654] [2024-11-28 04:30:37,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:37,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:37,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:37,184 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:37,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:30:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:37,351 INFO L256 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:30:37,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:37,560 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:30:37,560 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:37,816 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:30:37,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798485654] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:30:37,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:30:37,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 4] total 16 [2024-11-28 04:30:37,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528306551] [2024-11-28 04:30:37,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:37,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:30:37,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:37,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:30:37,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:30:37,818 INFO L87 Difference]: Start difference. First operand 6035 states and 8604 transitions. Second operand has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 0 states have call successors, (0), 0 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 04:30:40,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:40,180 INFO L93 Difference]: Finished difference Result 29109 states and 39065 transitions. [2024-11-28 04:30:40,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-28 04:30:40,181 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 0 states have call successors, (0), 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 04:30:40,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:40,205 INFO L225 Difference]: With dead ends: 29109 [2024-11-28 04:30:40,205 INFO L226 Difference]: Without dead ends: 25389 [2024-11-28 04:30:40,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=578, Invalid=2178, Unknown=0, NotChecked=0, Total=2756 [2024-11-28 04:30:40,214 INFO L435 NwaCegarLoop]: 1546 mSDtfsCounter, 12007 mSDsluCounter, 7984 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12007 SdHoareTripleChecker+Valid, 9530 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:40,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12007 Valid, 9530 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:30:40,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25389 states. [2024-11-28 04:30:41,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25389 to 25263. [2024-11-28 04:30:41,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25263 states, 25261 states have (on average 1.2863307074145918) internal successors, (32494), 25262 states have internal predecessors, (32494), 0 states have call successors, (0), 0 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 04:30:41,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25263 states to 25263 states and 32494 transitions. [2024-11-28 04:30:41,050 INFO L78 Accepts]: Start accepts. Automaton has 25263 states and 32494 transitions. Word has length 89 [2024-11-28 04:30:41,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:41,050 INFO L471 AbstractCegarLoop]: Abstraction has 25263 states and 32494 transitions. [2024-11-28 04:30:41,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 0 states have call successors, (0), 0 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 04:30:41,050 INFO L276 IsEmpty]: Start isEmpty. Operand 25263 states and 32494 transitions. [2024-11-28 04:30:41,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 04:30:41,052 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:41,052 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:41,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:30:41,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:41,253 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:41,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:41,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1775616186, now seen corresponding path program 1 times [2024-11-28 04:30:41,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:41,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503216836] [2024-11-28 04:30:41,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:41,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:41,695 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:41,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:41,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503216836] [2024-11-28 04:30:41,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503216836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:41,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563483970] [2024-11-28 04:30:41,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:41,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:41,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:41,700 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:41,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:30:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:41,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:30:41,892 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:42,463 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:42,467 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:43,566 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:43,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563483970] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:30:43,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:30:43,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-28 04:30:43,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735580398] [2024-11-28 04:30:43,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:43,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 04:30:43,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:43,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 04:30:43,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:30:43,569 INFO L87 Difference]: Start difference. First operand 25263 states and 32494 transitions. Second operand has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 0 states have call successors, (0), 0 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 04:30:45,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:45,434 INFO L93 Difference]: Finished difference Result 70765 states and 90150 transitions. [2024-11-28 04:30:45,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:30:45,434 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 0 states have call successors, (0), 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 04:30:45,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:45,465 INFO L225 Difference]: With dead ends: 70765 [2024-11-28 04:30:45,466 INFO L226 Difference]: Without dead ends: 48978 [2024-11-28 04:30:45,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2024-11-28 04:30:45,475 INFO L435 NwaCegarLoop]: 1518 mSDtfsCounter, 15481 mSDsluCounter, 4757 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15481 SdHoareTripleChecker+Valid, 6275 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:45,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15481 Valid, 6275 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:30:45,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48978 states. [2024-11-28 04:30:47,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48978 to 48382. [2024-11-28 04:30:47,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48382 states, 48380 states have (on average 1.2597974369574205) internal successors, (60949), 48381 states have internal predecessors, (60949), 0 states have call successors, (0), 0 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 04:30:47,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48382 states to 48382 states and 60949 transitions. [2024-11-28 04:30:47,354 INFO L78 Accepts]: Start accepts. Automaton has 48382 states and 60949 transitions. Word has length 89 [2024-11-28 04:30:47,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:47,355 INFO L471 AbstractCegarLoop]: Abstraction has 48382 states and 60949 transitions. [2024-11-28 04:30:47,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 0 states have call successors, (0), 0 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 04:30:47,355 INFO L276 IsEmpty]: Start isEmpty. Operand 48382 states and 60949 transitions. [2024-11-28 04:30:47,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 04:30:47,358 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:47,359 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:47,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:30:47,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-28 04:30:47,563 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:47,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:47,564 INFO L85 PathProgramCache]: Analyzing trace with hash 2718711, now seen corresponding path program 1 times [2024-11-28 04:30:47,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:47,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632444355] [2024-11-28 04:30:47,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:47,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:48,074 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:48,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:48,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632444355] [2024-11-28 04:30:48,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632444355] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:48,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775979818] [2024-11-28 04:30:48,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:48,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:48,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:48,077 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:48,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:30:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:48,258 INFO L256 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:30:48,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:48,862 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:48,862 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:30:50,083 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:50,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775979818] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:30:50,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:30:50,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-28 04:30:50,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327820017] [2024-11-28 04:30:50,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:30:50,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:30:50,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:50,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:30:50,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:30:50,085 INFO L87 Difference]: Start difference. First operand 48382 states and 60949 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 04:30:53,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:53,251 INFO L93 Difference]: Finished difference Result 134214 states and 168466 transitions. [2024-11-28 04:30:53,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:30:53,251 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 04:30:53,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:53,355 INFO L225 Difference]: With dead ends: 134214 [2024-11-28 04:30:53,355 INFO L226 Difference]: Without dead ends: 95533 [2024-11-28 04:30:53,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 04:30:53,379 INFO L435 NwaCegarLoop]: 1521 mSDtfsCounter, 18111 mSDsluCounter, 4802 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18111 SdHoareTripleChecker+Valid, 6323 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:53,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18111 Valid, 6323 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:30:53,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95533 states. [2024-11-28 04:30:57,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95533 to 94345. [2024-11-28 04:30:57,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94345 states, 94343 states have (on average 1.2389684449296716) internal successors, (116888), 94344 states have internal predecessors, (116888), 0 states have call successors, (0), 0 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 04:30:58,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94345 states to 94345 states and 116888 transitions. [2024-11-28 04:30:58,048 INFO L78 Accepts]: Start accepts. Automaton has 94345 states and 116888 transitions. Word has length 90 [2024-11-28 04:30:58,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:58,048 INFO L471 AbstractCegarLoop]: Abstraction has 94345 states and 116888 transitions. [2024-11-28 04:30:58,048 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 04:30:58,048 INFO L276 IsEmpty]: Start isEmpty. Operand 94345 states and 116888 transitions. [2024-11-28 04:30:58,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 04:30:58,051 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:58,052 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:30:58,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:30:58,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 04:30:58,252 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:58,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:58,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1519319510, now seen corresponding path program 1 times [2024-11-28 04:30:58,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:58,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500993479] [2024-11-28 04:30:58,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:58,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:58,617 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:30:58,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:58,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500993479] [2024-11-28 04:30:58,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500993479] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:58,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510120193] [2024-11-28 04:30:58,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:58,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:58,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:58,620 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:58,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:30:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:58,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-28 04:30:58,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:11,049 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:33:11,049 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:33:20,959 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:33:20,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510120193] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:33:20,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:33:20,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 30, 30] total 67 [2024-11-28 04:33:20,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134893910] [2024-11-28 04:33:20,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:33:20,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-11-28 04:33:20,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:33:20,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-11-28 04:33:20,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=742, Invalid=3680, Unknown=0, NotChecked=0, Total=4422 [2024-11-28 04:33:20,964 INFO L87 Difference]: Start difference. First operand 94345 states and 116888 transitions. Second operand has 67 states, 67 states have (on average 3.6865671641791047) internal successors, (247), 67 states have internal predecessors, (247), 0 states have call successors, (0), 0 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 04:33:48,127 WARN L286 SmtUtils]: Spent 10.01s on a formula simplification. DAG size of input: 367 DAG size of output: 273 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:34:04,658 WARN L286 SmtUtils]: Spent 14.03s on a formula simplification. DAG size of input: 480 DAG size of output: 307 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:34:11,747 WARN L286 SmtUtils]: Spent 5.80s on a formula simplification. DAG size of input: 383 DAG size of output: 290 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:35:34,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:34,223 INFO L93 Difference]: Finished difference Result 208690 states and 259395 transitions. [2024-11-28 04:35:34,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2024-11-28 04:35:34,224 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 3.6865671641791047) internal successors, (247), 67 states have internal predecessors, (247), 0 states have call successors, (0), 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 04:35:34,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:34,354 INFO L225 Difference]: With dead ends: 208690 [2024-11-28 04:35:34,354 INFO L226 Difference]: Without dead ends: 125215 [2024-11-28 04:35:34,390 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13306 ImplicationChecksByTransitivity, 141.6s TimeCoverageRelationStatistics Valid=7448, Invalid=31558, Unknown=0, NotChecked=0, Total=39006 [2024-11-28 04:35:34,390 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 18610 mSDsluCounter, 31582 mSDsCounter, 0 mSdLazyCounter, 3856 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18610 SdHoareTripleChecker+Valid, 33139 SdHoareTripleChecker+Invalid, 3984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 3856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:34,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18610 Valid, 33139 Invalid, 3984 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [128 Valid, 3856 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2024-11-28 04:35:34,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125215 states. [2024-11-28 04:35:39,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125215 to 102830. [2024-11-28 04:35:39,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102830 states, 102828 states have (on average 1.2347220601392617) internal successors, (126964), 102829 states have internal predecessors, (126964), 0 states have call successors, (0), 0 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 04:35:39,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102830 states to 102830 states and 126964 transitions. [2024-11-28 04:35:39,415 INFO L78 Accepts]: Start accepts. Automaton has 102830 states and 126964 transitions. Word has length 91 [2024-11-28 04:35:39,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:39,415 INFO L471 AbstractCegarLoop]: Abstraction has 102830 states and 126964 transitions. [2024-11-28 04:35:39,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 3.6865671641791047) internal successors, (247), 67 states have internal predecessors, (247), 0 states have call successors, (0), 0 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 04:35:39,415 INFO L276 IsEmpty]: Start isEmpty. Operand 102830 states and 126964 transitions. [2024-11-28 04:35:39,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 04:35:39,417 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:39,418 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:39,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:35:39,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 04:35:39,618 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:39,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:39,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1473270273, now seen corresponding path program 1 times [2024-11-28 04:35:39,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:39,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724711869] [2024-11-28 04:35:39,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:39,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:42,968 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:35:42,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:42,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724711869] [2024-11-28 04:35:42,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724711869] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:42,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996404983] [2024-11-28 04:35:42,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:42,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:42,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:42,970 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:42,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f1f4f2-3c85-4c04-9baf-91ccd8a4a4e6/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:35:43,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:43,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:35:43,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:44,431 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:35:44,431 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:46,559 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:35:46,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996404983] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:35:46,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:35:46,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 13, 13] total 51 [2024-11-28 04:35:46,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763736429] [2024-11-28 04:35:46,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:46,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-28 04:35:46,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:46,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-28 04:35:46,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=2381, Unknown=0, NotChecked=0, Total=2550 [2024-11-28 04:35:46,561 INFO L87 Difference]: Start difference. First operand 102830 states and 126964 transitions. Second operand has 51 states, 51 states have (on average 5.0) internal successors, (255), 51 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)