./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.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_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e6586f3310e3029a2986640bb61549fc4f6b9393300761740fd8a157791ea846 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:18:09,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:18:09,273 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 10:18:09,278 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:18:09,278 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:18:09,300 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:18:09,301 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:18:09,301 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:18:09,301 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:18:09,302 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:18:09,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:18:09,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:18:09,302 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:18:09,302 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:18:09,302 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:18:09,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:18:09,303 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:18:09,303 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:18:09,303 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:18:09,303 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:18:09,303 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:18:09,303 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:18:09,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:18:09,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:18:09,303 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:18:09,303 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:18:09,303 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:18:09,304 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:18:09,304 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:18:09,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:18:09,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:18:09,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:18:09,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:18:09,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:18:09,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:18:09,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:18:09,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:18:09,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:18:09,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:18:09,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:18:09,305 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:18:09,305 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:18:09,305 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:18:09,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:18:09,305 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:18:09,305 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:18:09,305 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:18:09,305 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:18:09,305 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_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6586f3310e3029a2986640bb61549fc4f6b9393300761740fd8a157791ea846 [2024-12-02 10:18:09,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:18:09,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:18:09,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:18:09,556 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:18:09,556 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:18:09,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label05.c [2024-12-02 10:18:12,176 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/data/1a14d742c/a7826a7ce1584fe1ab1290349c12308b/FLAG44847e3b5 [2024-12-02 10:18:12,573 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:18:12,574 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label05.c [2024-12-02 10:18:12,596 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/data/1a14d742c/a7826a7ce1584fe1ab1290349c12308b/FLAG44847e3b5 [2024-12-02 10:18:12,769 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/data/1a14d742c/a7826a7ce1584fe1ab1290349c12308b [2024-12-02 10:18:12,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:18:12,773 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:18:12,774 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:18:12,774 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:18:12,778 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:18:12,778 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:18:12" (1/1) ... [2024-12-02 10:18:12,779 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f444c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:12, skipping insertion in model container [2024-12-02 10:18:12,779 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:18:12" (1/1) ... [2024-12-02 10:18:12,870 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:18:13,194 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_c4249032-2a03-4454-aa01-b553210b6f4e/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label05.c[26897,26910] [2024-12-02 10:18:13,234 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_c4249032-2a03-4454-aa01-b553210b6f4e/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label05.c[33833,33846] [2024-12-02 10:18:13,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:18:13,824 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:18:13,863 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_c4249032-2a03-4454-aa01-b553210b6f4e/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label05.c[26897,26910] [2024-12-02 10:18:13,873 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_c4249032-2a03-4454-aa01-b553210b6f4e/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label05.c[33833,33846] [2024-12-02 10:18:14,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:18:14,344 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:18:14,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:14 WrapperNode [2024-12-02 10:18:14,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:18:14,345 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:18:14,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:18:14,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:18:14,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:14" (1/1) ... [2024-12-02 10:18:14,389 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:14" (1/1) ... [2024-12-02 10:18:14,671 INFO L138 Inliner]: procedures = 39, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5292 [2024-12-02 10:18:14,672 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:18:14,672 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:18:14,672 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:18:14,672 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:18:14,683 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:14" (1/1) ... [2024-12-02 10:18:14,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:14" (1/1) ... [2024-12-02 10:18:14,732 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:14" (1/1) ... [2024-12-02 10:18:14,912 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 10:18:14,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:14" (1/1) ... [2024-12-02 10:18:14,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:14" (1/1) ... [2024-12-02 10:18:14,986 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:14" (1/1) ... [2024-12-02 10:18:14,994 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:14" (1/1) ... [2024-12-02 10:18:15,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:14" (1/1) ... [2024-12-02 10:18:15,040 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:14" (1/1) ... [2024-12-02 10:18:15,051 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:14" (1/1) ... [2024-12-02 10:18:15,103 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:18:15,104 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:18:15,104 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:18:15,104 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:18:15,105 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:14" (1/1) ... [2024-12-02 10:18:15,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:18:15,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:18:15,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:18:15,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:18:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:18:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:18:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:18:15,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:18:15,270 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:18:15,272 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:18:19,913 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-12-02 10:18:19,913 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:18:19,940 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:18:19,940 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 10:18:19,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:18:19 BoogieIcfgContainer [2024-12-02 10:18:19,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:18:19,943 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:18:19,943 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:18:19,947 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:18:19,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:18:12" (1/3) ... [2024-12-02 10:18:19,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25f0a399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:18:19, skipping insertion in model container [2024-12-02 10:18:19,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:18:14" (2/3) ... [2024-12-02 10:18:19,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25f0a399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:18:19, skipping insertion in model container [2024-12-02 10:18:19,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:18:19" (3/3) ... [2024-12-02 10:18:19,949 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label05.c [2024-12-02 10:18:19,960 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:18:19,962 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label05.c that has 1 procedures, 948 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 10:18:20,026 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:18:20,036 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;@193c4db9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:18:20,036 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 10:18:20,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 948 states, 945 states have (on average 1.9026455026455027) internal successors, (1798), 947 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:20,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-02 10:18:20,048 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:18:20,049 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:18:20,049 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:18:20,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:18:20,053 INFO L85 PathProgramCache]: Analyzing trace with hash 607462501, now seen corresponding path program 1 times [2024-12-02 10:18:20,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:18:20,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292063054] [2024-12-02 10:18:20,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:18:20,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:18:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:18:20,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:18:20,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:18:20,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292063054] [2024-12-02 10:18:20,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292063054] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:18:20,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:18:20,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:18:20,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131805732] [2024-12-02 10:18:20,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:18:20,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 10:18:20,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:18:20,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 10:18:20,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:18:20,316 INFO L87 Difference]: Start difference. First operand has 948 states, 945 states have (on average 1.9026455026455027) internal successors, (1798), 947 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:20,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:20,378 INFO L93 Difference]: Finished difference Result 1829 states and 3466 transitions. [2024-12-02 10:18:20,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 10:18:20,380 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-12-02 10:18:20,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:18:20,394 INFO L225 Difference]: With dead ends: 1829 [2024-12-02 10:18:20,394 INFO L226 Difference]: Without dead ends: 882 [2024-12-02 10:18:20,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:18:20,402 INFO L435 NwaCegarLoop]: 1732 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:18:20,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1732 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:18:20,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-12-02 10:18:20,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2024-12-02 10:18:20,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 880 states have (on average 1.8920454545454546) internal successors, (1665), 881 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:20,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1665 transitions. [2024-12-02 10:18:20,470 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1665 transitions. Word has length 31 [2024-12-02 10:18:20,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:18:20,470 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1665 transitions. [2024-12-02 10:18:20,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:20,471 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1665 transitions. [2024-12-02 10:18:20,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-02 10:18:20,472 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:18:20,472 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:18:20,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:18:20,473 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:18:20,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:18:20,473 INFO L85 PathProgramCache]: Analyzing trace with hash 748011111, now seen corresponding path program 1 times [2024-12-02 10:18:20,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:18:20,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110354227] [2024-12-02 10:18:20,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:18:20,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:18:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:18:20,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:18:20,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:18:20,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110354227] [2024-12-02 10:18:20,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110354227] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:18:20,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:18:20,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:18:20,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057327301] [2024-12-02 10:18:20,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:18:20,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:18:20,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:18:20,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:18:20,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:18:20,730 INFO L87 Difference]: Start difference. First operand 882 states and 1665 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:20,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:20,873 INFO L93 Difference]: Finished difference Result 947 states and 1767 transitions. [2024-12-02 10:18:20,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:18:20,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-12-02 10:18:20,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:18:20,878 INFO L225 Difference]: With dead ends: 947 [2024-12-02 10:18:20,878 INFO L226 Difference]: Without dead ends: 882 [2024-12-02 10:18:20,878 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:18:20,879 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 0 mSDsluCounter, 4923 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6586 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:18:20,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6586 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:18:20,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-12-02 10:18:20,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2024-12-02 10:18:20,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 880 states have (on average 1.8227272727272728) internal successors, (1604), 881 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:20,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1604 transitions. [2024-12-02 10:18:20,905 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1604 transitions. Word has length 31 [2024-12-02 10:18:20,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:18:20,906 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1604 transitions. [2024-12-02 10:18:20,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:20,906 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1604 transitions. [2024-12-02 10:18:20,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-12-02 10:18:20,907 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:18:20,907 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] [2024-12-02 10:18:20,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:18:20,908 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:18:20,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:18:20,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1019264101, now seen corresponding path program 1 times [2024-12-02 10:18:20,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:18:20,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506055942] [2024-12-02 10:18:20,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:18:20,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:18:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:18:21,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:18:21,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:18:21,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506055942] [2024-12-02 10:18:21,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506055942] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:18:21,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:18:21,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:18:21,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759433406] [2024-12-02 10:18:21,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:18:21,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:18:21,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:18:21,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:18:21,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:18:21,152 INFO L87 Difference]: Start difference. First operand 882 states and 1604 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) [2024-12-02 10:18:26,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:26,869 INFO L93 Difference]: Finished difference Result 3137 states and 5913 transitions. [2024-12-02 10:18:26,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:18:26,870 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 [2024-12-02 10:18:26,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:18:26,876 INFO L225 Difference]: With dead ends: 3137 [2024-12-02 10:18:26,876 INFO L226 Difference]: Without dead ends: 2384 [2024-12-02 10:18:26,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:18:26,878 INFO L435 NwaCegarLoop]: 840 mSDtfsCounter, 2523 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2523 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:18:26,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2523 Valid, 858 Invalid, 6507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-12-02 10:18:26,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2024-12-02 10:18:26,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2384. [2024-12-02 10:18:26,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2384 states, 2382 states have (on average 1.5608732157850547) internal successors, (3718), 2383 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:26,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2384 states to 2384 states and 3718 transitions. [2024-12-02 10:18:26,915 INFO L78 Accepts]: Start accepts. Automaton has 2384 states and 3718 transitions. Word has length 60 [2024-12-02 10:18:26,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:18:26,916 INFO L471 AbstractCegarLoop]: Abstraction has 2384 states and 3718 transitions. [2024-12-02 10:18:26,916 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) [2024-12-02 10:18:26,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states and 3718 transitions. [2024-12-02 10:18:26,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 10:18:26,918 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:18:26,918 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:18:26,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:18:26,918 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:18:26,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:18:26,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1819257143, now seen corresponding path program 1 times [2024-12-02 10:18:26,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:18:26,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155593734] [2024-12-02 10:18:26,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:18:26,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:18:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:18:27,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:18:27,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:18:27,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155593734] [2024-12-02 10:18:27,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155593734] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:18:27,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:18:27,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:18:27,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775115926] [2024-12-02 10:18:27,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:18:27,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:18:27,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:18:27,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:18:27,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:18:27,205 INFO L87 Difference]: Start difference. First operand 2384 states and 3718 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:27,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:27,705 INFO L93 Difference]: Finished difference Result 3360 states and 5286 transitions. [2024-12-02 10:18:27,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 10:18:27,706 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-12-02 10:18:27,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:18:27,717 INFO L225 Difference]: With dead ends: 3360 [2024-12-02 10:18:27,717 INFO L226 Difference]: Without dead ends: 3299 [2024-12-02 10:18:27,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:18:27,719 INFO L435 NwaCegarLoop]: 1600 mSDtfsCounter, 13470 mSDsluCounter, 4611 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13470 SdHoareTripleChecker+Valid, 6211 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:18:27,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13470 Valid, 6211 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:18:27,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2024-12-02 10:18:27,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 2443. [2024-12-02 10:18:27,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2441 states have (on average 1.5620647275706678) internal successors, (3813), 2442 states have internal predecessors, (3813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:27,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3813 transitions. [2024-12-02 10:18:27,782 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3813 transitions. Word has length 91 [2024-12-02 10:18:27,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:18:27,782 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3813 transitions. [2024-12-02 10:18:27,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:27,782 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3813 transitions. [2024-12-02 10:18:27,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 10:18:27,784 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:18:27,784 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:18:27,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:18:27,784 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:18:27,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:18:27,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1161263545, now seen corresponding path program 1 times [2024-12-02 10:18:27,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:18:27,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156183023] [2024-12-02 10:18:27,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:18:27,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:18:27,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:18:27,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:18:27,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:18:27,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156183023] [2024-12-02 10:18:27,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156183023] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:18:27,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:18:27,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:18:27,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227041161] [2024-12-02 10:18:27,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:18:27,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:18:27,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:18:27,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:18:27,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:18:27,944 INFO L87 Difference]: Start difference. First operand 2443 states and 3813 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:27,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:27,979 INFO L93 Difference]: Finished difference Result 2672 states and 4180 transitions. [2024-12-02 10:18:27,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:18:27,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-12-02 10:18:27,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:18:27,988 INFO L225 Difference]: With dead ends: 2672 [2024-12-02 10:18:27,988 INFO L226 Difference]: Without dead ends: 2552 [2024-12-02 10:18:27,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:18:27,990 INFO L435 NwaCegarLoop]: 1602 mSDtfsCounter, 1506 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:18:27,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1695 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:18:27,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2024-12-02 10:18:28,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2550. [2024-12-02 10:18:28,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2548 states have (on average 1.5631868131868132) internal successors, (3983), 2549 states have internal predecessors, (3983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:28,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3983 transitions. [2024-12-02 10:18:28,044 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3983 transitions. Word has length 93 [2024-12-02 10:18:28,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:18:28,044 INFO L471 AbstractCegarLoop]: Abstraction has 2550 states and 3983 transitions. [2024-12-02 10:18:28,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:28,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3983 transitions. [2024-12-02 10:18:28,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 10:18:28,045 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:18:28,045 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:18:28,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 10:18:28,046 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:18:28,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:18:28,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1094770033, now seen corresponding path program 1 times [2024-12-02 10:18:28,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:18:28,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472711416] [2024-12-02 10:18:28,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:18:28,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:18:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:18:28,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:18:28,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:18:28,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472711416] [2024-12-02 10:18:28,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472711416] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:18:28,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:18:28,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:18:28,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63405976] [2024-12-02 10:18:28,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:18:28,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:18:28,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:18:28,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:18:28,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:18:28,592 INFO L87 Difference]: Start difference. First operand 2550 states and 3983 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:29,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:29,068 INFO L93 Difference]: Finished difference Result 2779 states and 4347 transitions. [2024-12-02 10:18:29,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:18:29,069 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-12-02 10:18:29,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:18:29,077 INFO L225 Difference]: With dead ends: 2779 [2024-12-02 10:18:29,077 INFO L226 Difference]: Without dead ends: 2552 [2024-12-02 10:18:29,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:18:29,079 INFO L435 NwaCegarLoop]: 1594 mSDtfsCounter, 1590 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 2366 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:18:29,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 2366 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:18:29,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2024-12-02 10:18:29,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2550. [2024-12-02 10:18:29,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2548 states have (on average 1.5624018838304552) internal successors, (3981), 2549 states have internal predecessors, (3981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:29,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3981 transitions. [2024-12-02 10:18:29,133 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3981 transitions. Word has length 93 [2024-12-02 10:18:29,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:18:29,133 INFO L471 AbstractCegarLoop]: Abstraction has 2550 states and 3981 transitions. [2024-12-02 10:18:29,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:29,134 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3981 transitions. [2024-12-02 10:18:29,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 10:18:29,135 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:18:29,135 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:18:29,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:18:29,135 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:18:29,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:18:29,136 INFO L85 PathProgramCache]: Analyzing trace with hash 7144525, now seen corresponding path program 1 times [2024-12-02 10:18:29,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:18:29,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233746066] [2024-12-02 10:18:29,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:18:29,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:18:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:18:29,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:18:29,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:18:29,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233746066] [2024-12-02 10:18:29,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233746066] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:18:29,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:18:29,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:18:29,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731688531] [2024-12-02 10:18:29,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:18:29,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:18:29,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:18:29,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:18:29,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:18:29,433 INFO L87 Difference]: Start difference. First operand 2550 states and 3981 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:29,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:29,475 INFO L93 Difference]: Finished difference Result 2558 states and 3990 transitions. [2024-12-02 10:18:29,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:18:29,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-12-02 10:18:29,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:18:29,484 INFO L225 Difference]: With dead ends: 2558 [2024-12-02 10:18:29,484 INFO L226 Difference]: Without dead ends: 2556 [2024-12-02 10:18:29,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:18:29,486 INFO L435 NwaCegarLoop]: 1601 mSDtfsCounter, 0 mSDsluCounter, 4794 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6395 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:18:29,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6395 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:18:29,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2024-12-02 10:18:29,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 2556. [2024-12-02 10:18:29,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2556 states, 2554 states have (on average 1.5606891151135474) internal successors, (3986), 2555 states have internal predecessors, (3986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:29,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2556 states to 2556 states and 3986 transitions. [2024-12-02 10:18:29,539 INFO L78 Accepts]: Start accepts. Automaton has 2556 states and 3986 transitions. Word has length 94 [2024-12-02 10:18:29,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:18:29,540 INFO L471 AbstractCegarLoop]: Abstraction has 2556 states and 3986 transitions. [2024-12-02 10:18:29,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:29,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2556 states and 3986 transitions. [2024-12-02 10:18:29,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 10:18:29,541 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:18:29,541 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:18:29,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 10:18:29,541 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:18:29,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:18:29,542 INFO L85 PathProgramCache]: Analyzing trace with hash 471923503, now seen corresponding path program 1 times [2024-12-02 10:18:29,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:18:29,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511817488] [2024-12-02 10:18:29,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:18:29,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:18:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:18:29,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:18:29,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:18:29,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511817488] [2024-12-02 10:18:29,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511817488] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:18:29,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:18:29,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:18:29,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734135345] [2024-12-02 10:18:29,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:18:29,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:18:29,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:18:29,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:18:29,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:18:29,646 INFO L87 Difference]: Start difference. First operand 2556 states and 3986 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:29,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:29,705 INFO L93 Difference]: Finished difference Result 2803 states and 4372 transitions. [2024-12-02 10:18:29,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:18:29,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 10:18:29,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:18:29,713 INFO L225 Difference]: With dead ends: 2803 [2024-12-02 10:18:29,713 INFO L226 Difference]: Without dead ends: 2677 [2024-12-02 10:18:29,714 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:18:29,714 INFO L435 NwaCegarLoop]: 1686 mSDtfsCounter, 1526 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:18:29,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:18:29,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2024-12-02 10:18:29,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2675. [2024-12-02 10:18:29,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2675 states, 2673 states have (on average 1.5600448933782267) internal successors, (4170), 2674 states have internal predecessors, (4170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:29,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 4170 transitions. [2024-12-02 10:18:29,768 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 4170 transitions. Word has length 95 [2024-12-02 10:18:29,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:18:29,769 INFO L471 AbstractCegarLoop]: Abstraction has 2675 states and 4170 transitions. [2024-12-02 10:18:29,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:29,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 4170 transitions. [2024-12-02 10:18:29,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 10:18:29,770 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:18:29,770 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:18:29,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 10:18:29,770 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:18:29,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:18:29,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1510056913, now seen corresponding path program 1 times [2024-12-02 10:18:29,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:18:29,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928968443] [2024-12-02 10:18:29,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:18:29,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:18:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:18:29,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:18:29,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:18:29,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928968443] [2024-12-02 10:18:29,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928968443] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:18:29,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:18:29,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:18:29,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885289026] [2024-12-02 10:18:29,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:18:29,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:18:29,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:18:29,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:18:29,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:18:29,863 INFO L87 Difference]: Start difference. First operand 2675 states and 4170 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:29,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:29,907 INFO L93 Difference]: Finished difference Result 3349 states and 5222 transitions. [2024-12-02 10:18:29,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:18:29,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 10:18:29,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:18:29,917 INFO L225 Difference]: With dead ends: 3349 [2024-12-02 10:18:29,917 INFO L226 Difference]: Without dead ends: 3000 [2024-12-02 10:18:29,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:18:29,919 INFO L435 NwaCegarLoop]: 1688 mSDtfsCounter, 1524 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:18:29,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:18:29,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2024-12-02 10:18:29,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 2998. [2024-12-02 10:18:29,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2998 states, 2996 states have (on average 1.5580774365821095) internal successors, (4668), 2997 states have internal predecessors, (4668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:29,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2998 states to 2998 states and 4668 transitions. [2024-12-02 10:18:29,981 INFO L78 Accepts]: Start accepts. Automaton has 2998 states and 4668 transitions. Word has length 95 [2024-12-02 10:18:29,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:18:29,981 INFO L471 AbstractCegarLoop]: Abstraction has 2998 states and 4668 transitions. [2024-12-02 10:18:29,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:29,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2998 states and 4668 transitions. [2024-12-02 10:18:29,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 10:18:29,982 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:18:29,983 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:18:29,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 10:18:29,983 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:18:29,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:18:29,983 INFO L85 PathProgramCache]: Analyzing trace with hash 594927151, now seen corresponding path program 1 times [2024-12-02 10:18:29,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:18:29,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325105834] [2024-12-02 10:18:29,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:18:29,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:18:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:18:30,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:18:30,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:18:30,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325105834] [2024-12-02 10:18:30,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325105834] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:18:30,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:18:30,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:18:30,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621382864] [2024-12-02 10:18:30,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:18:30,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:18:30,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:18:30,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:18:30,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:18:30,080 INFO L87 Difference]: Start difference. First operand 2998 states and 4668 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:30,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:30,130 INFO L93 Difference]: Finished difference Result 4294 states and 6674 transitions. [2024-12-02 10:18:30,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:18:30,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 10:18:30,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:18:30,140 INFO L225 Difference]: With dead ends: 4294 [2024-12-02 10:18:30,140 INFO L226 Difference]: Without dead ends: 3622 [2024-12-02 10:18:30,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:18:30,143 INFO L435 NwaCegarLoop]: 1676 mSDtfsCounter, 1520 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:18:30,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1787 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:18:30,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2024-12-02 10:18:30,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3620. [2024-12-02 10:18:30,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3618 states have (on average 1.5522388059701493) internal successors, (5616), 3619 states have internal predecessors, (5616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:30,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 5616 transitions. [2024-12-02 10:18:30,224 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 5616 transitions. Word has length 95 [2024-12-02 10:18:30,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:18:30,224 INFO L471 AbstractCegarLoop]: Abstraction has 3620 states and 5616 transitions. [2024-12-02 10:18:30,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:30,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 5616 transitions. [2024-12-02 10:18:30,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 10:18:30,226 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:18:30,226 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:18:30,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 10:18:30,226 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:18:30,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:18:30,226 INFO L85 PathProgramCache]: Analyzing trace with hash 858783535, now seen corresponding path program 1 times [2024-12-02 10:18:30,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:18:30,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643158360] [2024-12-02 10:18:30,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:18:30,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:18:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:18:30,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:18:30,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:18:30,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643158360] [2024-12-02 10:18:30,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643158360] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:18:30,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:18:30,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:18:30,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032369692] [2024-12-02 10:18:30,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:18:30,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:18:30,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:18:30,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:18:30,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:18:30,319 INFO L87 Difference]: Start difference. First operand 3620 states and 5616 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:30,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:30,386 INFO L93 Difference]: Finished difference Result 6112 states and 9434 transitions. [2024-12-02 10:18:30,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:18:30,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 10:18:30,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:18:30,398 INFO L225 Difference]: With dead ends: 6112 [2024-12-02 10:18:30,398 INFO L226 Difference]: Without dead ends: 4818 [2024-12-02 10:18:30,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:18:30,401 INFO L435 NwaCegarLoop]: 1674 mSDtfsCounter, 1518 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:18:30,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:18:30,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4818 states. [2024-12-02 10:18:30,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4818 to 4816. [2024-12-02 10:18:30,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4816 states, 4814 states have (on average 1.5405068550062317) internal successors, (7416), 4815 states have internal predecessors, (7416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:30,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4816 states to 4816 states and 7416 transitions. [2024-12-02 10:18:30,514 INFO L78 Accepts]: Start accepts. Automaton has 4816 states and 7416 transitions. Word has length 95 [2024-12-02 10:18:30,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:18:30,514 INFO L471 AbstractCegarLoop]: Abstraction has 4816 states and 7416 transitions. [2024-12-02 10:18:30,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:30,514 INFO L276 IsEmpty]: Start isEmpty. Operand 4816 states and 7416 transitions. [2024-12-02 10:18:30,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 10:18:30,515 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:18:30,515 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:18:30,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 10:18:30,515 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:18:30,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:18:30,516 INFO L85 PathProgramCache]: Analyzing trace with hash -118423249, now seen corresponding path program 1 times [2024-12-02 10:18:30,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:18:30,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43948778] [2024-12-02 10:18:30,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:18:30,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:18:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:18:30,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:18:30,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:18:30,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43948778] [2024-12-02 10:18:30,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43948778] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:18:30,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:18:30,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:18:30,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572561936] [2024-12-02 10:18:30,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:18:30,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:18:30,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:18:30,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:18:30,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:18:30,606 INFO L87 Difference]: Start difference. First operand 4816 states and 7416 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:30,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:30,684 INFO L93 Difference]: Finished difference Result 9604 states and 14666 transitions. [2024-12-02 10:18:30,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:18:30,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 10:18:30,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:18:30,696 INFO L225 Difference]: With dead ends: 9604 [2024-12-02 10:18:30,696 INFO L226 Difference]: Without dead ends: 7114 [2024-12-02 10:18:30,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:18:30,700 INFO L435 NwaCegarLoop]: 1662 mSDtfsCounter, 1514 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:18:30,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:18:30,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7114 states. [2024-12-02 10:18:30,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7114 to 7112. [2024-12-02 10:18:30,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7112 states, 7110 states have (on average 1.5223628691983122) internal successors, (10824), 7111 states have internal predecessors, (10824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:30,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7112 states to 7112 states and 10824 transitions. [2024-12-02 10:18:30,861 INFO L78 Accepts]: Start accepts. Automaton has 7112 states and 10824 transitions. Word has length 95 [2024-12-02 10:18:30,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:18:30,861 INFO L471 AbstractCegarLoop]: Abstraction has 7112 states and 10824 transitions. [2024-12-02 10:18:30,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:30,861 INFO L276 IsEmpty]: Start isEmpty. Operand 7112 states and 10824 transitions. [2024-12-02 10:18:30,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 10:18:30,862 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:18:30,862 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:18:30,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 10:18:30,862 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:18:30,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:18:30,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1662509615, now seen corresponding path program 1 times [2024-12-02 10:18:30,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:18:30,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008114831] [2024-12-02 10:18:30,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:18:30,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:18:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:18:30,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:18:30,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:18:30,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008114831] [2024-12-02 10:18:30,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008114831] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:18:30,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:18:30,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:18:30,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188715414] [2024-12-02 10:18:30,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:18:30,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:18:30,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:18:30,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:18:30,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:18:30,924 INFO L87 Difference]: Start difference. First operand 7112 states and 10824 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:31,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:31,047 INFO L93 Difference]: Finished difference Result 16300 states and 24554 transitions. [2024-12-02 10:18:31,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:18:31,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 10:18:31,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:18:31,063 INFO L225 Difference]: With dead ends: 16300 [2024-12-02 10:18:31,063 INFO L226 Difference]: Without dead ends: 11514 [2024-12-02 10:18:31,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:18:31,069 INFO L435 NwaCegarLoop]: 1660 mSDtfsCounter, 1512 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:18:31,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1787 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:18:31,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11514 states. [2024-12-02 10:18:31,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11514 to 11512. [2024-12-02 10:18:31,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11512 states, 11510 states have (on average 1.499218071242398) internal successors, (17256), 11511 states have internal predecessors, (17256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:31,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11512 states to 11512 states and 17256 transitions. [2024-12-02 10:18:31,260 INFO L78 Accepts]: Start accepts. Automaton has 11512 states and 17256 transitions. Word has length 95 [2024-12-02 10:18:31,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:18:31,260 INFO L471 AbstractCegarLoop]: Abstraction has 11512 states and 17256 transitions. [2024-12-02 10:18:31,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:31,261 INFO L276 IsEmpty]: Start isEmpty. Operand 11512 states and 17256 transitions. [2024-12-02 10:18:31,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 10:18:31,261 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:18:31,261 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:18:31,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 10:18:31,261 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:18:31,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:18:31,262 INFO L85 PathProgramCache]: Analyzing trace with hash 2097045551, now seen corresponding path program 1 times [2024-12-02 10:18:31,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:18:31,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176575357] [2024-12-02 10:18:31,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:18:31,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:18:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:18:31,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:18:31,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:18:31,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176575357] [2024-12-02 10:18:31,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176575357] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:18:31,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:18:31,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:18:31,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888534963] [2024-12-02 10:18:31,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:18:31,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:18:31,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:18:31,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:18:31,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:18:31,319 INFO L87 Difference]: Start difference. First operand 11512 states and 17256 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:31,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:31,611 INFO L93 Difference]: Finished difference Result 29116 states and 43178 transitions. [2024-12-02 10:18:31,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:18:31,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 10:18:31,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:18:31,652 INFO L225 Difference]: With dead ends: 29116 [2024-12-02 10:18:31,652 INFO L226 Difference]: Without dead ends: 19930 [2024-12-02 10:18:31,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:18:31,662 INFO L435 NwaCegarLoop]: 1672 mSDtfsCounter, 1516 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:18:31,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:18:31,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19930 states. [2024-12-02 10:18:32,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19930 to 19928. [2024-12-02 10:18:32,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19928 states, 19926 states have (on average 1.473050286058416) internal successors, (29352), 19927 states have internal predecessors, (29352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:32,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19928 states to 19928 states and 29352 transitions. [2024-12-02 10:18:32,162 INFO L78 Accepts]: Start accepts. Automaton has 19928 states and 29352 transitions. Word has length 95 [2024-12-02 10:18:32,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:18:32,162 INFO L471 AbstractCegarLoop]: Abstraction has 19928 states and 29352 transitions. [2024-12-02 10:18:32,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:32,162 INFO L276 IsEmpty]: Start isEmpty. Operand 19928 states and 29352 transitions. [2024-12-02 10:18:32,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 10:18:32,163 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:18:32,163 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:18:32,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 10:18:32,163 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:18:32,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:18:32,164 INFO L85 PathProgramCache]: Analyzing trace with hash 432012591, now seen corresponding path program 1 times [2024-12-02 10:18:32,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:18:32,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331705224] [2024-12-02 10:18:32,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:18:32,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:18:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:18:32,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:18:32,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:18:32,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331705224] [2024-12-02 10:18:32,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331705224] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:18:32,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:18:32,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:18:32,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136907258] [2024-12-02 10:18:32,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:18:32,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:18:32,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:18:32,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:18:32,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:18:32,247 INFO L87 Difference]: Start difference. First operand 19928 states and 29352 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:33,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:33,093 INFO L93 Difference]: Finished difference Result 53596 states and 78122 transitions. [2024-12-02 10:18:33,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:18:33,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-12-02 10:18:33,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:18:33,165 INFO L225 Difference]: With dead ends: 53596 [2024-12-02 10:18:33,165 INFO L226 Difference]: Without dead ends: 35994 [2024-12-02 10:18:33,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:18:33,185 INFO L435 NwaCegarLoop]: 1686 mSDtfsCounter, 1522 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:18:33,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 1793 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:18:33,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35994 states. [2024-12-02 10:18:33,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35994 to 35992. [2024-12-02 10:18:33,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35992 states, 35990 states have (on average 1.4450680744651292) internal successors, (52008), 35991 states have internal predecessors, (52008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:33,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35992 states to 35992 states and 52008 transitions. [2024-12-02 10:18:33,992 INFO L78 Accepts]: Start accepts. Automaton has 35992 states and 52008 transitions. Word has length 95 [2024-12-02 10:18:33,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:18:33,992 INFO L471 AbstractCegarLoop]: Abstraction has 35992 states and 52008 transitions. [2024-12-02 10:18:33,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:33,993 INFO L276 IsEmpty]: Start isEmpty. Operand 35992 states and 52008 transitions. [2024-12-02 10:18:34,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:18:34,001 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:18:34,001 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:18:34,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 10:18:34,001 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:18:34,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:18:34,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1265201594, now seen corresponding path program 1 times [2024-12-02 10:18:34,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:18:34,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42581259] [2024-12-02 10:18:34,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:18:34,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:18:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:18:34,289 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:18:34,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:18:34,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42581259] [2024-12-02 10:18:34,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42581259] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:18:34,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:18:34,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:18:34,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956082376] [2024-12-02 10:18:34,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:18:34,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:18:34,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:18:34,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:18:34,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:18:34,290 INFO L87 Difference]: Start difference. First operand 35992 states and 52008 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:38,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:38,468 INFO L93 Difference]: Finished difference Result 301994 states and 434097 transitions. [2024-12-02 10:18:38,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:18:38,469 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 10:18:38,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:18:38,778 INFO L225 Difference]: With dead ends: 301994 [2024-12-02 10:18:38,779 INFO L226 Difference]: Without dead ends: 278440 [2024-12-02 10:18:38,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:18:38,828 INFO L435 NwaCegarLoop]: 1701 mSDtfsCounter, 11802 mSDsluCounter, 3466 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11802 SdHoareTripleChecker+Valid, 5167 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:18:38,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11802 Valid, 5167 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:18:38,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278440 states. [2024-12-02 10:18:41,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278440 to 64664. [2024-12-02 10:18:41,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64664 states, 64662 states have (on average 1.435773715628963) internal successors, (92840), 64663 states have internal predecessors, (92840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:41,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64664 states to 64664 states and 92840 transitions. [2024-12-02 10:18:41,293 INFO L78 Accepts]: Start accepts. Automaton has 64664 states and 92840 transitions. Word has length 121 [2024-12-02 10:18:41,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:18:41,294 INFO L471 AbstractCegarLoop]: Abstraction has 64664 states and 92840 transitions. [2024-12-02 10:18:41,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:41,294 INFO L276 IsEmpty]: Start isEmpty. Operand 64664 states and 92840 transitions. [2024-12-02 10:18:41,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:18:41,299 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:18:41,299 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:18:41,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 10:18:41,300 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:18:41,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:18:41,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1047785286, now seen corresponding path program 1 times [2024-12-02 10:18:41,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:18:41,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766662002] [2024-12-02 10:18:41,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:18:41,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:18:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:18:41,574 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 10:18:41,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:18:41,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766662002] [2024-12-02 10:18:41,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766662002] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:18:41,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:18:41,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:18:41,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400681160] [2024-12-02 10:18:41,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:18:41,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:18:41,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:18:41,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:18:41,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:18:41,576 INFO L87 Difference]: Start difference. First operand 64664 states and 92840 transitions. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:47,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:47,539 INFO L93 Difference]: Finished difference Result 335658 states and 482225 transitions. [2024-12-02 10:18:47,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:18:47,540 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 10:18:47,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:18:47,878 INFO L225 Difference]: With dead ends: 335658 [2024-12-02 10:18:47,878 INFO L226 Difference]: Without dead ends: 301992 [2024-12-02 10:18:47,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:18:47,935 INFO L435 NwaCegarLoop]: 1700 mSDtfsCounter, 11804 mSDsluCounter, 3406 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11804 SdHoareTripleChecker+Valid, 5106 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:18:47,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11804 Valid, 5106 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:18:48,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301992 states. [2024-12-02 10:18:51,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301992 to 110104. [2024-12-02 10:18:51,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110104 states, 110102 states have (on average 1.4303100761112424) internal successors, (157480), 110103 states have internal predecessors, (157480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:52,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110104 states to 110104 states and 157480 transitions. [2024-12-02 10:18:52,183 INFO L78 Accepts]: Start accepts. Automaton has 110104 states and 157480 transitions. Word has length 121 [2024-12-02 10:18:52,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:18:52,184 INFO L471 AbstractCegarLoop]: Abstraction has 110104 states and 157480 transitions. [2024-12-02 10:18:52,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:52,184 INFO L276 IsEmpty]: Start isEmpty. Operand 110104 states and 157480 transitions. [2024-12-02 10:18:52,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:18:52,193 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:18:52,193 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:18:52,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 10:18:52,193 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:18:52,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:18:52,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1142197946, now seen corresponding path program 1 times [2024-12-02 10:18:52,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:18:52,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843894630] [2024-12-02 10:18:52,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:18:52,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:18:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:18:52,432 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 10:18:52,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:18:52,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843894630] [2024-12-02 10:18:52,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843894630] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:18:52,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:18:52,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:18:52,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958826027] [2024-12-02 10:18:52,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:18:52,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:18:52,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:18:52,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:18:52,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:18:52,434 INFO L87 Difference]: Start difference. First operand 110104 states and 157480 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:18:58,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:18:58,828 INFO L93 Difference]: Finished difference Result 369322 states and 530225 transitions. [2024-12-02 10:18:58,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:18:58,829 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 10:18:58,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:18:59,192 INFO L225 Difference]: With dead ends: 369322 [2024-12-02 10:18:59,192 INFO L226 Difference]: Without dead ends: 335656 [2024-12-02 10:18:59,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:18:59,256 INFO L435 NwaCegarLoop]: 1698 mSDtfsCounter, 11848 mSDsluCounter, 3424 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11848 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:18:59,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11848 Valid, 5122 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:18:59,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335656 states. [2024-12-02 10:19:04,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335656 to 143768. [2024-12-02 10:19:04,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143768 states, 143766 states have (on average 1.4292670033248474) internal successors, (205480), 143767 states have internal predecessors, (205480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:19:05,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143768 states to 143768 states and 205480 transitions. [2024-12-02 10:19:05,139 INFO L78 Accepts]: Start accepts. Automaton has 143768 states and 205480 transitions. Word has length 121 [2024-12-02 10:19:05,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:19:05,139 INFO L471 AbstractCegarLoop]: Abstraction has 143768 states and 205480 transitions. [2024-12-02 10:19:05,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:19:05,139 INFO L276 IsEmpty]: Start isEmpty. Operand 143768 states and 205480 transitions. [2024-12-02 10:19:05,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:19:05,148 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:19:05,148 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:19:05,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 10:19:05,148 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:19:05,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:19:05,149 INFO L85 PathProgramCache]: Analyzing trace with hash -878341562, now seen corresponding path program 1 times [2024-12-02 10:19:05,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:19:05,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744867157] [2024-12-02 10:19:05,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:19:05,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:19:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:19:05,501 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 10:19:05,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:19:05,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744867157] [2024-12-02 10:19:05,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744867157] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:19:05,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:19:05,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:19:05,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426636245] [2024-12-02 10:19:05,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:19:05,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:19:05,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:19:05,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:19:05,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:19:05,502 INFO L87 Difference]: Start difference. First operand 143768 states and 205480 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:19:13,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:19:13,608 INFO L93 Difference]: Finished difference Result 402986 states and 578225 transitions. [2024-12-02 10:19:13,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:19:13,609 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 10:19:13,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:19:14,144 INFO L225 Difference]: With dead ends: 402986 [2024-12-02 10:19:14,144 INFO L226 Difference]: Without dead ends: 369320 [2024-12-02 10:19:14,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:19:14,195 INFO L435 NwaCegarLoop]: 1696 mSDtfsCounter, 12002 mSDsluCounter, 3297 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12002 SdHoareTripleChecker+Valid, 4993 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:19:14,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12002 Valid, 4993 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:19:14,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369320 states. [2024-12-02 10:19:20,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369320 to 177432. [2024-12-02 10:19:20,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177432 states, 177430 states have (on average 1.4286197373612128) internal successors, (253480), 177431 states have internal predecessors, (253480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:19:20,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177432 states to 177432 states and 253480 transitions. [2024-12-02 10:19:20,562 INFO L78 Accepts]: Start accepts. Automaton has 177432 states and 253480 transitions. Word has length 121 [2024-12-02 10:19:20,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:19:20,563 INFO L471 AbstractCegarLoop]: Abstraction has 177432 states and 253480 transitions. [2024-12-02 10:19:20,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:19:20,563 INFO L276 IsEmpty]: Start isEmpty. Operand 177432 states and 253480 transitions. [2024-12-02 10:19:20,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:19:20,575 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:19:20,576 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:19:20,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 10:19:20,576 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:19:20,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:19:20,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1855548346, now seen corresponding path program 1 times [2024-12-02 10:19:20,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:19:20,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471368906] [2024-12-02 10:19:20,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:19:20,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:19:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:19:20,840 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 10:19:20,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:19:20,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471368906] [2024-12-02 10:19:20,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471368906] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:19:20,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:19:20,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:19:20,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119576556] [2024-12-02 10:19:20,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:19:20,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:19:20,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:19:20,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:19:20,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:19:20,842 INFO L87 Difference]: Start difference. First operand 177432 states and 253480 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:19:31,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:19:31,308 INFO L93 Difference]: Finished difference Result 436650 states and 626225 transitions. [2024-12-02 10:19:31,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:19:31,309 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 10:19:31,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:19:31,763 INFO L225 Difference]: With dead ends: 436650 [2024-12-02 10:19:31,763 INFO L226 Difference]: Without dead ends: 402984 [2024-12-02 10:19:31,826 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:19:31,826 INFO L435 NwaCegarLoop]: 1694 mSDtfsCounter, 12107 mSDsluCounter, 3339 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12107 SdHoareTripleChecker+Valid, 5033 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:19:31,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12107 Valid, 5033 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:19:32,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402984 states. [2024-12-02 10:19:38,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402984 to 211096. [2024-12-02 10:19:38,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211096 states, 211094 states have (on average 1.4281789155542082) internal successors, (301480), 211095 states have internal predecessors, (301480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:19:39,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211096 states to 211096 states and 301480 transitions. [2024-12-02 10:19:39,093 INFO L78 Accepts]: Start accepts. Automaton has 211096 states and 301480 transitions. Word has length 121 [2024-12-02 10:19:39,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:19:39,093 INFO L471 AbstractCegarLoop]: Abstraction has 211096 states and 301480 transitions. [2024-12-02 10:19:39,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:19:39,094 INFO L276 IsEmpty]: Start isEmpty. Operand 211096 states and 301480 transitions. [2024-12-02 10:19:39,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:19:39,101 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:19:39,101 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:19:39,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 10:19:39,101 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:19:39,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:19:39,102 INFO L85 PathProgramCache]: Analyzing trace with hash -74615482, now seen corresponding path program 1 times [2024-12-02 10:19:39,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:19:39,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926308076] [2024-12-02 10:19:39,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:19:39,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:19:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:19:39,343 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 10:19:39,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:19:39,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926308076] [2024-12-02 10:19:39,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926308076] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:19:39,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:19:39,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:19:39,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271128642] [2024-12-02 10:19:39,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:19:39,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:19:39,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:19:39,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:19:39,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:19:39,345 INFO L87 Difference]: Start difference. First operand 211096 states and 301480 transitions. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:19:50,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:19:50,297 INFO L93 Difference]: Finished difference Result 470314 states and 674225 transitions. [2024-12-02 10:19:50,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:19:50,298 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 10:19:50,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:19:50,789 INFO L225 Difference]: With dead ends: 470314 [2024-12-02 10:19:50,789 INFO L226 Difference]: Without dead ends: 436648 [2024-12-02 10:19:50,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:19:50,861 INFO L435 NwaCegarLoop]: 1694 mSDtfsCounter, 11910 mSDsluCounter, 3357 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11910 SdHoareTripleChecker+Valid, 5051 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:19:50,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11910 Valid, 5051 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:19:51,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436648 states. [2024-12-02 10:19:58,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436648 to 244760. [2024-12-02 10:19:58,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244760 states, 244758 states have (on average 1.4278593549546899) internal successors, (349480), 244759 states have internal predecessors, (349480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:19:59,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244760 states to 244760 states and 349480 transitions. [2024-12-02 10:19:59,237 INFO L78 Accepts]: Start accepts. Automaton has 244760 states and 349480 transitions. Word has length 121 [2024-12-02 10:19:59,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:19:59,238 INFO L471 AbstractCegarLoop]: Abstraction has 244760 states and 349480 transitions. [2024-12-02 10:19:59,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:19:59,238 INFO L276 IsEmpty]: Start isEmpty. Operand 244760 states and 349480 transitions. [2024-12-02 10:19:59,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:19:59,245 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:19:59,245 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:19:59,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 10:19:59,246 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:19:59,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:19:59,246 INFO L85 PathProgramCache]: Analyzing trace with hash 359920454, now seen corresponding path program 1 times [2024-12-02 10:19:59,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:19:59,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824453571] [2024-12-02 10:19:59,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:19:59,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:19:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:19:59,436 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 10:19:59,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:19:59,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824453571] [2024-12-02 10:19:59,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824453571] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:19:59,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:19:59,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:19:59,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728949589] [2024-12-02 10:19:59,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:19:59,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:19:59,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:19:59,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:19:59,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:19:59,437 INFO L87 Difference]: Start difference. First operand 244760 states and 349480 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:20:12,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:12,124 INFO L93 Difference]: Finished difference Result 503978 states and 722225 transitions. [2024-12-02 10:20:12,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:20:12,125 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 10:20:12,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:12,650 INFO L225 Difference]: With dead ends: 503978 [2024-12-02 10:20:12,650 INFO L226 Difference]: Without dead ends: 470312 [2024-12-02 10:20:12,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:20:12,721 INFO L435 NwaCegarLoop]: 1694 mSDtfsCounter, 11731 mSDsluCounter, 3618 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11731 SdHoareTripleChecker+Valid, 5312 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:12,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11731 Valid, 5312 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:20:12,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470312 states. [2024-12-02 10:20:21,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470312 to 278424. [2024-12-02 10:20:21,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278424 states, 278422 states have (on average 1.4276170704901192) internal successors, (397480), 278423 states have internal predecessors, (397480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:20:22,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278424 states to 278424 states and 397480 transitions. [2024-12-02 10:20:22,556 INFO L78 Accepts]: Start accepts. Automaton has 278424 states and 397480 transitions. Word has length 121 [2024-12-02 10:20:22,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:22,557 INFO L471 AbstractCegarLoop]: Abstraction has 278424 states and 397480 transitions. [2024-12-02 10:20:22,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:20:22,557 INFO L276 IsEmpty]: Start isEmpty. Operand 278424 states and 397480 transitions. [2024-12-02 10:20:22,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 10:20:22,564 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:22,564 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:22,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 10:20:22,564 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:22,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:22,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1305112506, now seen corresponding path program 1 times [2024-12-02 10:20:22,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:22,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723894] [2024-12-02 10:20:22,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:22,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:22,769 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 10:20:22,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:22,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723894] [2024-12-02 10:20:22,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723894] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:22,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:22,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 10:20:22,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730241059] [2024-12-02 10:20:22,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:22,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:20:22,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:22,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:20:22,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:20:22,770 INFO L87 Difference]: Start difference. First operand 278424 states and 397480 transitions. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:20:36,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:36,734 INFO L93 Difference]: Finished difference Result 537642 states and 770225 transitions. [2024-12-02 10:20:36,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:20:36,734 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 10:20:36,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:37,306 INFO L225 Difference]: With dead ends: 537642 [2024-12-02 10:20:37,307 INFO L226 Difference]: Without dead ends: 503976 [2024-12-02 10:20:37,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:20:37,382 INFO L435 NwaCegarLoop]: 1693 mSDtfsCounter, 11733 mSDsluCounter, 3770 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11733 SdHoareTripleChecker+Valid, 5463 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:37,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11733 Valid, 5463 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:20:37,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503976 states. [2024-12-02 10:20:47,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503976 to 312088. [2024-12-02 10:20:48,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312088 states, 312086 states have (on average 1.427427055362945) internal successors, (445480), 312087 states have internal predecessors, (445480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:20:48,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312088 states to 312088 states and 445480 transitions. [2024-12-02 10:20:48,656 INFO L78 Accepts]: Start accepts. Automaton has 312088 states and 445480 transitions. Word has length 121 [2024-12-02 10:20:48,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:48,657 INFO L471 AbstractCegarLoop]: Abstraction has 312088 states and 445480 transitions. [2024-12-02 10:20:48,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:20:48,657 INFO L276 IsEmpty]: Start isEmpty. Operand 312088 states and 445480 transitions. [2024-12-02 10:20:48,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 10:20:48,675 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:48,675 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:48,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 10:20:48,675 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:20:48,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:48,676 INFO L85 PathProgramCache]: Analyzing trace with hash 152835943, now seen corresponding path program 1 times [2024-12-02 10:20:48,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:48,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996059634] [2024-12-02 10:20:48,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:48,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:20:48,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:48,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996059634] [2024-12-02 10:20:48,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996059634] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:48,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:48,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:20:48,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326264107] [2024-12-02 10:20:48,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:48,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:20:48,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:48,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:20:48,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:20:48,838 INFO L87 Difference]: Start difference. First operand 312088 states and 445480 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:20:57,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:57,912 INFO L93 Difference]: Finished difference Result 621852 states and 887338 transitions. [2024-12-02 10:20:57,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:20:57,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-12-02 10:20:57,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:58,248 INFO L225 Difference]: With dead ends: 621852 [2024-12-02 10:20:58,248 INFO L226 Difference]: Without dead ends: 312090 [2024-12-02 10:20:58,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:20:58,354 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 69 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 3255 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:58,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 3255 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:20:58,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312090 states. [2024-12-02 10:21:08,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312090 to 312088. [2024-12-02 10:21:08,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312088 states, 312086 states have (on average 1.416148113020129) internal successors, (441960), 312087 states have internal predecessors, (441960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:08,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312088 states to 312088 states and 441960 transitions. [2024-12-02 10:21:08,834 INFO L78 Accepts]: Start accepts. Automaton has 312088 states and 441960 transitions. Word has length 122 [2024-12-02 10:21:08,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:08,834 INFO L471 AbstractCegarLoop]: Abstraction has 312088 states and 441960 transitions. [2024-12-02 10:21:08,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:08,835 INFO L276 IsEmpty]: Start isEmpty. Operand 312088 states and 441960 transitions. [2024-12-02 10:21:08,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 10:21:08,839 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:08,840 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:08,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 10:21:08,840 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:08,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:08,840 INFO L85 PathProgramCache]: Analyzing trace with hash 550117598, now seen corresponding path program 1 times [2024-12-02 10:21:08,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:08,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028923230] [2024-12-02 10:21:08,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:08,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:08,922 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:21:08,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:08,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028923230] [2024-12-02 10:21:08,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028923230] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:08,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:08,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:21:08,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599056673] [2024-12-02 10:21:08,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:08,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:21:08,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:08,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:21:08,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:21:08,923 INFO L87 Difference]: Start difference. First operand 312088 states and 441960 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:12,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:12,456 INFO L93 Difference]: Finished difference Result 423990 states and 601285 transitions. [2024-12-02 10:21:12,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:21:12,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-12-02 10:21:12,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:12,578 INFO L225 Difference]: With dead ends: 423990 [2024-12-02 10:21:12,578 INFO L226 Difference]: Without dead ends: 114228 [2024-12-02 10:21:12,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:21:12,692 INFO L435 NwaCegarLoop]: 1661 mSDtfsCounter, 63 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3252 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:12,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 3252 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:21:12,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114228 states. [2024-12-02 10:21:16,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114228 to 114219. [2024-12-02 10:21:16,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114219 states, 114217 states have (on average 1.4159275764553438) internal successors, (161723), 114218 states have internal predecessors, (161723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:16,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114219 states to 114219 states and 161723 transitions. [2024-12-02 10:21:16,705 INFO L78 Accepts]: Start accepts. Automaton has 114219 states and 161723 transitions. Word has length 123 [2024-12-02 10:21:16,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:16,705 INFO L471 AbstractCegarLoop]: Abstraction has 114219 states and 161723 transitions. [2024-12-02 10:21:16,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:16,705 INFO L276 IsEmpty]: Start isEmpty. Operand 114219 states and 161723 transitions. [2024-12-02 10:21:16,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 10:21:16,708 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:16,708 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:16,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 10:21:16,708 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:16,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:16,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1979176647, now seen corresponding path program 1 times [2024-12-02 10:21:16,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:16,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046719063] [2024-12-02 10:21:16,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:16,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:16,800 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:21:16,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:16,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046719063] [2024-12-02 10:21:16,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046719063] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:16,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:16,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:21:16,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323139720] [2024-12-02 10:21:16,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:16,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:21:16,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:16,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:21:16,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:21:16,801 INFO L87 Difference]: Start difference. First operand 114219 states and 161723 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:18,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:18,300 INFO L93 Difference]: Finished difference Result 170159 states and 240765 transitions. [2024-12-02 10:21:18,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:21:18,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-12-02 10:21:18,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:18,355 INFO L225 Difference]: With dead ends: 170159 [2024-12-02 10:21:18,356 INFO L226 Difference]: Without dead ends: 58285 [2024-12-02 10:21:18,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:21:18,400 INFO L435 NwaCegarLoop]: 1655 mSDtfsCounter, 65 mSDsluCounter, 1576 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 3231 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:18,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 3231 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:21:18,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58285 states. [2024-12-02 10:21:20,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58285 to 58283. [2024-12-02 10:21:20,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58283 states, 58281 states have (on average 1.4082634134623633) internal successors, (82075), 58282 states have internal predecessors, (82075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:20,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58283 states to 58283 states and 82075 transitions. [2024-12-02 10:21:20,423 INFO L78 Accepts]: Start accepts. Automaton has 58283 states and 82075 transitions. Word has length 124 [2024-12-02 10:21:20,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:20,424 INFO L471 AbstractCegarLoop]: Abstraction has 58283 states and 82075 transitions. [2024-12-02 10:21:20,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:20,424 INFO L276 IsEmpty]: Start isEmpty. Operand 58283 states and 82075 transitions. [2024-12-02 10:21:20,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 10:21:20,427 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:20,427 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:20,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 10:21:20,427 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:20,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:20,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1946826357, now seen corresponding path program 1 times [2024-12-02 10:21:20,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:20,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306330957] [2024-12-02 10:21:20,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:20,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:20,609 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:21:20,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:20,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306330957] [2024-12-02 10:21:20,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306330957] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:20,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:20,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:21:20,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999221594] [2024-12-02 10:21:20,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:20,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:21:20,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:20,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:21:20,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:21:20,610 INFO L87 Difference]: Start difference. First operand 58283 states and 82075 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:21,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:21,670 INFO L93 Difference]: Finished difference Result 86255 states and 121293 transitions. [2024-12-02 10:21:21,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:21:21,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-12-02 10:21:21,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:21,704 INFO L225 Difference]: With dead ends: 86255 [2024-12-02 10:21:21,704 INFO L226 Difference]: Without dead ends: 30317 [2024-12-02 10:21:21,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:21:21,727 INFO L435 NwaCegarLoop]: 1648 mSDtfsCounter, 62 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 3216 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:21,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 3216 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:21:21,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30317 states. [2024-12-02 10:21:22,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30317 to 30315. [2024-12-02 10:21:22,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30315 states, 30313 states have (on average 1.403853132319467) internal successors, (42555), 30314 states have internal predecessors, (42555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:22,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30315 states to 30315 states and 42555 transitions. [2024-12-02 10:21:22,608 INFO L78 Accepts]: Start accepts. Automaton has 30315 states and 42555 transitions. Word has length 126 [2024-12-02 10:21:22,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:22,608 INFO L471 AbstractCegarLoop]: Abstraction has 30315 states and 42555 transitions. [2024-12-02 10:21:22,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:22,608 INFO L276 IsEmpty]: Start isEmpty. Operand 30315 states and 42555 transitions. [2024-12-02 10:21:22,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 10:21:22,610 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:22,610 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:22,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 10:21:22,610 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:22,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:22,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1691477923, now seen corresponding path program 1 times [2024-12-02 10:21:22,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:22,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240018876] [2024-12-02 10:21:22,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:22,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:22,711 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:21:22,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:22,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240018876] [2024-12-02 10:21:22,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240018876] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:22,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:22,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:21:22,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081104554] [2024-12-02 10:21:22,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:22,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:21:22,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:22,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:21:22,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:21:22,712 INFO L87 Difference]: Start difference. First operand 30315 states and 42555 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:23,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:23,087 INFO L93 Difference]: Finished difference Result 44303 states and 62013 transitions. [2024-12-02 10:21:23,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:21:23,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2024-12-02 10:21:23,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:23,106 INFO L225 Difference]: With dead ends: 44303 [2024-12-02 10:21:23,107 INFO L226 Difference]: Without dead ends: 16333 [2024-12-02 10:21:23,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:21:23,118 INFO L435 NwaCegarLoop]: 1641 mSDtfsCounter, 59 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 3201 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:23,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 3201 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:21:23,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16333 states. [2024-12-02 10:21:23,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16333 to 16331. [2024-12-02 10:21:23,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16331 states, 16329 states have (on average 1.4052911997060444) internal successors, (22947), 16330 states have internal predecessors, (22947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:23,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16331 states to 16331 states and 22947 transitions. [2024-12-02 10:21:23,554 INFO L78 Accepts]: Start accepts. Automaton has 16331 states and 22947 transitions. Word has length 128 [2024-12-02 10:21:23,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:23,554 INFO L471 AbstractCegarLoop]: Abstraction has 16331 states and 22947 transitions. [2024-12-02 10:21:23,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:23,554 INFO L276 IsEmpty]: Start isEmpty. Operand 16331 states and 22947 transitions. [2024-12-02 10:21:23,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 10:21:23,555 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:23,555 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:23,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 10:21:23,556 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:23,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:23,556 INFO L85 PathProgramCache]: Analyzing trace with hash -740149841, now seen corresponding path program 1 times [2024-12-02 10:21:23,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:23,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389715460] [2024-12-02 10:21:23,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:23,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:23,641 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:21:23,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:23,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389715460] [2024-12-02 10:21:23,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389715460] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:23,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:23,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:21:23,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952568875] [2024-12-02 10:21:23,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:23,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:21:23,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:23,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:21:23,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:21:23,641 INFO L87 Difference]: Start difference. First operand 16331 states and 22947 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:23,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:23,836 INFO L93 Difference]: Finished difference Result 23327 states and 32601 transitions. [2024-12-02 10:21:23,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:21:23,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2024-12-02 10:21:23,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:23,856 INFO L225 Difference]: With dead ends: 23327 [2024-12-02 10:21:23,857 INFO L226 Difference]: Without dead ends: 9341 [2024-12-02 10:21:23,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:21:23,864 INFO L435 NwaCegarLoop]: 1634 mSDtfsCounter, 56 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3186 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:23,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3186 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:21:23,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9341 states. [2024-12-02 10:21:24,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9341 to 9339. [2024-12-02 10:21:24,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9339 states, 9337 states have (on average 1.4157652350862162) internal successors, (13219), 9338 states have internal predecessors, (13219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:24,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9339 states to 9339 states and 13219 transitions. [2024-12-02 10:21:24,098 INFO L78 Accepts]: Start accepts. Automaton has 9339 states and 13219 transitions. Word has length 130 [2024-12-02 10:21:24,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:24,098 INFO L471 AbstractCegarLoop]: Abstraction has 9339 states and 13219 transitions. [2024-12-02 10:21:24,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:24,098 INFO L276 IsEmpty]: Start isEmpty. Operand 9339 states and 13219 transitions. [2024-12-02 10:21:24,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 10:21:24,099 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:24,099 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:24,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 10:21:24,099 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:24,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:24,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1893139542, now seen corresponding path program 1 times [2024-12-02 10:21:24,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:24,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302899467] [2024-12-02 10:21:24,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:24,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:24,276 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:21:24,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:24,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302899467] [2024-12-02 10:21:24,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302899467] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:24,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:24,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:21:24,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911153940] [2024-12-02 10:21:24,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:24,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:21:24,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:24,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:21:24,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:21:24,277 INFO L87 Difference]: Start difference. First operand 9339 states and 13219 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:27,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:27,802 INFO L93 Difference]: Finished difference Result 13133 states and 19582 transitions. [2024-12-02 10:21:27,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:21:27,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2024-12-02 10:21:27,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:27,816 INFO L225 Difference]: With dead ends: 13133 [2024-12-02 10:21:27,816 INFO L226 Difference]: Without dead ends: 10841 [2024-12-02 10:21:27,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:21:27,820 INFO L435 NwaCegarLoop]: 839 mSDtfsCounter, 867 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 3095 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 3824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 3095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:27,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 1018 Invalid, 3824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 3095 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 10:21:27,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10841 states. [2024-12-02 10:21:28,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10841 to 10090. [2024-12-02 10:21:28,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10090 states, 10088 states have (on average 1.3850118953211736) internal successors, (13972), 10089 states have internal predecessors, (13972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:28,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10090 states to 10090 states and 13972 transitions. [2024-12-02 10:21:28,064 INFO L78 Accepts]: Start accepts. Automaton has 10090 states and 13972 transitions. Word has length 131 [2024-12-02 10:21:28,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:28,064 INFO L471 AbstractCegarLoop]: Abstraction has 10090 states and 13972 transitions. [2024-12-02 10:21:28,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:28,064 INFO L276 IsEmpty]: Start isEmpty. Operand 10090 states and 13972 transitions. [2024-12-02 10:21:28,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 10:21:28,065 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:28,065 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:28,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 10:21:28,065 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:28,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:28,066 INFO L85 PathProgramCache]: Analyzing trace with hash 875250049, now seen corresponding path program 1 times [2024-12-02 10:21:28,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:28,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095852804] [2024-12-02 10:21:28,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:28,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:28,154 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:21:28,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:28,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095852804] [2024-12-02 10:21:28,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095852804] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:28,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:28,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:21:28,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638675358] [2024-12-02 10:21:28,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:28,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:21:28,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:28,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:21:28,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:21:28,155 INFO L87 Difference]: Start difference. First operand 10090 states and 13972 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:28,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:28,292 INFO L93 Difference]: Finished difference Result 13590 states and 18762 transitions. [2024-12-02 10:21:28,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:21:28,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2024-12-02 10:21:28,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:28,309 INFO L225 Difference]: With dead ends: 13590 [2024-12-02 10:21:28,309 INFO L226 Difference]: Without dead ends: 6596 [2024-12-02 10:21:28,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:21:28,314 INFO L435 NwaCegarLoop]: 1585 mSDtfsCounter, 53 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 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 [2024-12-02 10:21:28,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3087 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:21:28,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6596 states. [2024-12-02 10:21:28,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6596 to 6594. [2024-12-02 10:21:28,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6594 states, 6592 states have (on average 1.3874393203883495) internal successors, (9146), 6593 states have internal predecessors, (9146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:28,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6594 states to 6594 states and 9146 transitions. [2024-12-02 10:21:28,450 INFO L78 Accepts]: Start accepts. Automaton has 6594 states and 9146 transitions. Word has length 132 [2024-12-02 10:21:28,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:28,450 INFO L471 AbstractCegarLoop]: Abstraction has 6594 states and 9146 transitions. [2024-12-02 10:21:28,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:28,450 INFO L276 IsEmpty]: Start isEmpty. Operand 6594 states and 9146 transitions. [2024-12-02 10:21:28,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 10:21:28,450 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:28,451 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:28,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 10:21:28,451 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:28,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:28,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1846172627, now seen corresponding path program 1 times [2024-12-02 10:21:28,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:28,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945811818] [2024-12-02 10:21:28,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:28,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:28,553 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:21:28,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:28,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945811818] [2024-12-02 10:21:28,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945811818] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:21:28,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:21:28,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:21:28,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606058102] [2024-12-02 10:21:28,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:21:28,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:21:28,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:28,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:21:28,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:21:28,554 INFO L87 Difference]: Start difference. First operand 6594 states and 9146 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:28,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:28,625 INFO L93 Difference]: Finished difference Result 8346 states and 11523 transitions. [2024-12-02 10:21:28,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:21:28,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2024-12-02 10:21:28,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:28,636 INFO L225 Difference]: With dead ends: 8346 [2024-12-02 10:21:28,636 INFO L226 Difference]: Without dead ends: 4848 [2024-12-02 10:21:28,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:21:28,638 INFO L435 NwaCegarLoop]: 1578 mSDtfsCounter, 50 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 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 [2024-12-02 10:21:28,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3072 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:21:28,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4848 states. [2024-12-02 10:21:28,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4848 to 4846. [2024-12-02 10:21:28,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4846 states, 4844 states have (on average 1.393889347646573) internal successors, (6752), 4845 states have internal predecessors, (6752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:28,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4846 states to 4846 states and 6752 transitions. [2024-12-02 10:21:28,726 INFO L78 Accepts]: Start accepts. Automaton has 4846 states and 6752 transitions. Word has length 134 [2024-12-02 10:21:28,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:28,727 INFO L471 AbstractCegarLoop]: Abstraction has 4846 states and 6752 transitions. [2024-12-02 10:21:28,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:28,727 INFO L276 IsEmpty]: Start isEmpty. Operand 4846 states and 6752 transitions. [2024-12-02 10:21:28,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 10:21:28,727 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:28,727 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:28,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 10:21:28,728 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:28,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:28,728 INFO L85 PathProgramCache]: Analyzing trace with hash 963159205, now seen corresponding path program 1 times [2024-12-02 10:21:28,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:28,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632891024] [2024-12-02 10:21:28,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:28,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:29,520 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:21:29,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:29,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632891024] [2024-12-02 10:21:29,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632891024] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:21:29,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757842389] [2024-12-02 10:21:29,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:29,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:21:29,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:21:29,522 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:21:29,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:21:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:29,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 10:21:29,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:21:29,927 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:21:29,927 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:21:30,477 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:21:30,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757842389] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:21:30,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:21:30,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 4] total 19 [2024-12-02 10:21:30,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109648443] [2024-12-02 10:21:30,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:21:30,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 10:21:30,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:30,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 10:21:30,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:21:30,479 INFO L87 Difference]: Start difference. First operand 4846 states and 6752 transitions. Second operand has 19 states, 19 states have (on average 20.473684210526315) internal successors, (389), 19 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:32,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:32,856 INFO L93 Difference]: Finished difference Result 14597 states and 19791 transitions. [2024-12-02 10:21:32,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-12-02 10:21:32,857 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 20.473684210526315) internal successors, (389), 19 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2024-12-02 10:21:32,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:32,872 INFO L225 Difference]: With dead ends: 14597 [2024-12-02 10:21:32,872 INFO L226 Difference]: Without dead ends: 12847 [2024-12-02 10:21:32,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=590, Invalid=2490, Unknown=0, NotChecked=0, Total=3080 [2024-12-02 10:21:32,876 INFO L435 NwaCegarLoop]: 1508 mSDtfsCounter, 18995 mSDsluCounter, 6482 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18995 SdHoareTripleChecker+Valid, 7990 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:32,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18995 Valid, 7990 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:21:32,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12847 states. [2024-12-02 10:21:33,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12847 to 12571. [2024-12-02 10:21:33,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12571 states, 12569 states have (on average 1.340599888614846) internal successors, (16850), 12570 states have internal predecessors, (16850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:33,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12571 states to 12571 states and 16850 transitions. [2024-12-02 10:21:33,186 INFO L78 Accepts]: Start accepts. Automaton has 12571 states and 16850 transitions. Word has length 136 [2024-12-02 10:21:33,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:33,186 INFO L471 AbstractCegarLoop]: Abstraction has 12571 states and 16850 transitions. [2024-12-02 10:21:33,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 20.473684210526315) internal successors, (389), 19 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:33,186 INFO L276 IsEmpty]: Start isEmpty. Operand 12571 states and 16850 transitions. [2024-12-02 10:21:33,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 10:21:33,187 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:33,187 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:33,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:21:33,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-12-02 10:21:33,387 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:33,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:33,388 INFO L85 PathProgramCache]: Analyzing trace with hash -407239470, now seen corresponding path program 1 times [2024-12-02 10:21:33,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:33,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444498379] [2024-12-02 10:21:33,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:33,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:34,111 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:21:34,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:34,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444498379] [2024-12-02 10:21:34,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444498379] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:21:34,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784293220] [2024-12-02 10:21:34,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:34,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:21:34,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:21:34,113 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:21:34,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:21:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:34,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 10:21:34,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:21:35,042 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:21:35,042 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:21:36,423 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:21:36,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784293220] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:21:36,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:21:36,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 31 [2024-12-02 10:21:36,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356636553] [2024-12-02 10:21:36,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:21:36,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-12-02 10:21:36,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:36,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-12-02 10:21:36,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=869, Unknown=0, NotChecked=0, Total=992 [2024-12-02 10:21:36,426 INFO L87 Difference]: Start difference. First operand 12571 states and 16850 transitions. Second operand has 32 states, 32 states have (on average 11.03125) internal successors, (353), 31 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:40,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:40,764 INFO L93 Difference]: Finished difference Result 48803 states and 64199 transitions. [2024-12-02 10:21:40,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-12-02 10:21:40,764 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 11.03125) internal successors, (353), 31 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2024-12-02 10:21:40,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:40,800 INFO L225 Difference]: With dead ends: 48803 [2024-12-02 10:21:40,800 INFO L226 Difference]: Without dead ends: 39418 [2024-12-02 10:21:40,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1332 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1217, Invalid=4789, Unknown=0, NotChecked=0, Total=6006 [2024-12-02 10:21:40,811 INFO L435 NwaCegarLoop]: 1508 mSDtfsCounter, 24730 mSDsluCounter, 6927 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24730 SdHoareTripleChecker+Valid, 8435 SdHoareTripleChecker+Invalid, 1613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:40,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24730 Valid, 8435 Invalid, 1613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 10:21:40,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39418 states. [2024-12-02 10:21:41,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39418 to 38758. [2024-12-02 10:21:41,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38758 states, 38756 states have (on average 1.2989214573227372) internal successors, (50341), 38757 states have internal predecessors, (50341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:41,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38758 states to 38758 states and 50341 transitions. [2024-12-02 10:21:41,995 INFO L78 Accepts]: Start accepts. Automaton has 38758 states and 50341 transitions. Word has length 137 [2024-12-02 10:21:41,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:41,995 INFO L471 AbstractCegarLoop]: Abstraction has 38758 states and 50341 transitions. [2024-12-02 10:21:41,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 11.03125) internal successors, (353), 31 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:41,995 INFO L276 IsEmpty]: Start isEmpty. Operand 38758 states and 50341 transitions. [2024-12-02 10:21:41,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 10:21:41,996 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:41,996 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:42,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:21:42,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-12-02 10:21:42,197 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:42,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:42,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1438973998, now seen corresponding path program 1 times [2024-12-02 10:21:42,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:42,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503379595] [2024-12-02 10:21:42,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:42,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:42,534 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:21:42,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:42,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503379595] [2024-12-02 10:21:42,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503379595] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:21:42,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612270149] [2024-12-02 10:21:42,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:42,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:21:42,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:21:42,536 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:21:42,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:21:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:42,717 INFO L256 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 10:21:42,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:21:43,342 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:21:43,342 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:21:44,514 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:21:44,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612270149] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:21:44,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:21:44,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-12-02 10:21:44,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303565589] [2024-12-02 10:21:44,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:21:44,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 10:21:44,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:44,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 10:21:44,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:21:44,516 INFO L87 Difference]: Start difference. First operand 38758 states and 50341 transitions. Second operand has 25 states, 25 states have (on average 15.16) internal successors, (379), 24 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:51,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:21:51,896 INFO L93 Difference]: Finished difference Result 239522 states and 311053 transitions. [2024-12-02 10:21:51,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-12-02 10:21:51,897 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 15.16) internal successors, (379), 24 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2024-12-02 10:21:51,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:21:52,071 INFO L225 Difference]: With dead ends: 239522 [2024-12-02 10:21:52,071 INFO L226 Difference]: Without dead ends: 204500 [2024-12-02 10:21:52,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 906 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=828, Invalid=3332, Unknown=0, NotChecked=0, Total=4160 [2024-12-02 10:21:52,110 INFO L435 NwaCegarLoop]: 1555 mSDtfsCounter, 21030 mSDsluCounter, 7312 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21030 SdHoareTripleChecker+Valid, 8867 SdHoareTripleChecker+Invalid, 1901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:21:52,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21030 Valid, 8867 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1861 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 10:21:52,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204500 states. [2024-12-02 10:21:57,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204500 to 146634. [2024-12-02 10:21:57,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146634 states, 146632 states have (on average 1.2682565879207812) internal successors, (185967), 146633 states have internal predecessors, (185967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:57,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146634 states to 146634 states and 185967 transitions. [2024-12-02 10:21:57,447 INFO L78 Accepts]: Start accepts. Automaton has 146634 states and 185967 transitions. Word has length 137 [2024-12-02 10:21:57,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:21:57,448 INFO L471 AbstractCegarLoop]: Abstraction has 146634 states and 185967 transitions. [2024-12-02 10:21:57,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 15.16) internal successors, (379), 24 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:21:57,448 INFO L276 IsEmpty]: Start isEmpty. Operand 146634 states and 185967 transitions. [2024-12-02 10:21:57,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 10:21:57,451 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:21:57,451 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:21:57,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:21:57,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:21:57,652 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:21:57,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:21:57,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1250497762, now seen corresponding path program 1 times [2024-12-02 10:21:57,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:21:57,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331304519] [2024-12-02 10:21:57,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:57,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:21:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:57,924 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:21:57,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:21:57,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331304519] [2024-12-02 10:21:57,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331304519] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:21:57,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947174369] [2024-12-02 10:21:57,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:21:57,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:21:57,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:21:57,926 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:21:57,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:21:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:21:58,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 10:21:58,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:21:58,721 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:21:58,721 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:21:59,937 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:21:59,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947174369] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:21:59,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:21:59,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-12-02 10:21:59,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107668742] [2024-12-02 10:21:59,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:21:59,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 10:21:59,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:21:59,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 10:21:59,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2024-12-02 10:21:59,938 INFO L87 Difference]: Start difference. First operand 146634 states and 185967 transitions. Second operand has 26 states, 26 states have (on average 15.346153846153847) internal successors, (399), 25 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:22:06,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:22:06,891 INFO L93 Difference]: Finished difference Result 331182 states and 419477 transitions. [2024-12-02 10:22:06,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 10:22:06,891 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 15.346153846153847) internal successors, (399), 25 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2024-12-02 10:22:06,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:22:07,073 INFO L225 Difference]: With dead ends: 331182 [2024-12-02 10:22:07,073 INFO L226 Difference]: Without dead ends: 193218 [2024-12-02 10:22:07,144 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=536, Invalid=1816, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 10:22:07,145 INFO L435 NwaCegarLoop]: 1519 mSDtfsCounter, 19452 mSDsluCounter, 8165 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19452 SdHoareTripleChecker+Valid, 9684 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:22:07,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19452 Valid, 9684 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:22:07,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193218 states. [2024-12-02 10:22:13,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193218 to 183246. [2024-12-02 10:22:13,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183246 states, 183244 states have (on average 1.2504311191635198) internal successors, (229134), 183245 states have internal predecessors, (229134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:22:13,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183246 states to 183246 states and 229134 transitions. [2024-12-02 10:22:13,964 INFO L78 Accepts]: Start accepts. Automaton has 183246 states and 229134 transitions. Word has length 139 [2024-12-02 10:22:13,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:22:13,964 INFO L471 AbstractCegarLoop]: Abstraction has 183246 states and 229134 transitions. [2024-12-02 10:22:13,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 15.346153846153847) internal successors, (399), 25 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:22:13,964 INFO L276 IsEmpty]: Start isEmpty. Operand 183246 states and 229134 transitions. [2024-12-02 10:22:13,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 10:22:13,968 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:22:13,968 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:22:13,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 10:22:14,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:22:14,168 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:22:14,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:22:14,169 INFO L85 PathProgramCache]: Analyzing trace with hash 2105197554, now seen corresponding path program 1 times [2024-12-02 10:22:14,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:22:14,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729569581] [2024-12-02 10:22:14,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:22:14,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:22:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:22:15,045 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:22:15,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:22:15,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729569581] [2024-12-02 10:22:15,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729569581] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:22:15,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87832484] [2024-12-02 10:22:15,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:22:15,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:22:15,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:22:15,047 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:22:15,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 10:22:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:22:15,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 10:22:15,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:22:15,820 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:22:15,820 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:22:17,919 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:22:17,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87832484] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:22:17,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:22:17,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 13] total 31 [2024-12-02 10:22:17,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999501522] [2024-12-02 10:22:17,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:22:17,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 10:22:17,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:22:17,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 10:22:17,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=824, Unknown=0, NotChecked=0, Total=930 [2024-12-02 10:22:17,921 INFO L87 Difference]: Start difference. First operand 183246 states and 229134 transitions. Second operand has 31 states, 31 states have (on average 12.419354838709678) internal successors, (385), 31 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:22:34,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:22:34,436 INFO L93 Difference]: Finished difference Result 581281 states and 729435 transitions. [2024-12-02 10:22:34,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-12-02 10:22:34,437 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 12.419354838709678) internal successors, (385), 31 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-12-02 10:22:34,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:22:34,823 INFO L225 Difference]: With dead ends: 581281 [2024-12-02 10:22:34,823 INFO L226 Difference]: Without dead ends: 414541 [2024-12-02 10:22:34,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 877 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=697, Invalid=3335, Unknown=0, NotChecked=0, Total=4032 [2024-12-02 10:22:34,906 INFO L435 NwaCegarLoop]: 1553 mSDtfsCounter, 16109 mSDsluCounter, 9267 mSDsCounter, 0 mSdLazyCounter, 2149 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16109 SdHoareTripleChecker+Valid, 10820 SdHoareTripleChecker+Invalid, 2202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:22:34,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16109 Valid, 10820 Invalid, 2202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2149 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 10:22:35,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414541 states. [2024-12-02 10:22:50,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414541 to 412385. [2024-12-02 10:22:50,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412385 states, 412383 states have (on average 1.2495059204671386) internal successors, (515275), 412384 states have internal predecessors, (515275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:22:50,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412385 states to 412385 states and 515275 transitions. [2024-12-02 10:22:50,900 INFO L78 Accepts]: Start accepts. Automaton has 412385 states and 515275 transitions. Word has length 141 [2024-12-02 10:22:50,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:22:50,900 INFO L471 AbstractCegarLoop]: Abstraction has 412385 states and 515275 transitions. [2024-12-02 10:22:50,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 12.419354838709678) internal successors, (385), 31 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:22:50,900 INFO L276 IsEmpty]: Start isEmpty. Operand 412385 states and 515275 transitions. [2024-12-02 10:22:50,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 10:22:50,904 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:22:50,905 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:22:50,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 10:22:51,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-12-02 10:22:51,105 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:22:51,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:22:51,106 INFO L85 PathProgramCache]: Analyzing trace with hash 192876242, now seen corresponding path program 1 times [2024-12-02 10:22:51,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:22:51,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331978853] [2024-12-02 10:22:51,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:22:51,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:22:51,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:22:51,675 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:22:51,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:22:51,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331978853] [2024-12-02 10:22:51,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331978853] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:22:51,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147470477] [2024-12-02 10:22:51,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:22:51,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:22:51,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:22:51,677 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:22:51,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 10:22:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:22:51,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 10:22:51,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:22:52,380 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:22:52,380 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:22:53,539 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:22:53,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147470477] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:22:53,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:22:53,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-12-02 10:22:53,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457376127] [2024-12-02 10:22:53,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:22:53,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 10:22:53,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:22:53,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 10:22:53,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:22:53,541 INFO L87 Difference]: Start difference. First operand 412385 states and 515275 transitions. Second operand has 23 states, 23 states have (on average 14.304347826086957) internal successors, (329), 22 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:23:08,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:08,987 INFO L93 Difference]: Finished difference Result 792262 states and 992827 transitions. [2024-12-02 10:23:08,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 10:23:08,987 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 14.304347826086957) internal successors, (329), 22 states have internal predecessors, (329), 0 states have call successors, (0), 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 141 [2024-12-02 10:23:08,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:09,746 INFO L225 Difference]: With dead ends: 792262 [2024-12-02 10:23:09,747 INFO L226 Difference]: Without dead ends: 422397 [2024-12-02 10:23:09,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=269, Invalid=787, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 10:23:09,885 INFO L435 NwaCegarLoop]: 1542 mSDtfsCounter, 13609 mSDsluCounter, 4902 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13609 SdHoareTripleChecker+Valid, 6444 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:09,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13609 Valid, 6444 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:23:10,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422397 states. [2024-12-02 10:23:26,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422397 to 410697. [2024-12-02 10:23:26,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410697 states, 410695 states have (on average 1.2420336259267826) internal successors, (510097), 410696 states have internal predecessors, (510097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:23:27,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410697 states to 410697 states and 510097 transitions. [2024-12-02 10:23:27,460 INFO L78 Accepts]: Start accepts. Automaton has 410697 states and 510097 transitions. Word has length 141 [2024-12-02 10:23:27,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:23:27,460 INFO L471 AbstractCegarLoop]: Abstraction has 410697 states and 510097 transitions. [2024-12-02 10:23:27,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 14.304347826086957) internal successors, (329), 22 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:23:27,461 INFO L276 IsEmpty]: Start isEmpty. Operand 410697 states and 510097 transitions. [2024-12-02 10:23:27,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 10:23:27,466 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:23:27,466 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:23:27,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 10:23:27,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-12-02 10:23:27,666 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:23:27,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:23:27,667 INFO L85 PathProgramCache]: Analyzing trace with hash -837617225, now seen corresponding path program 1 times [2024-12-02 10:23:27,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:23:27,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986958297] [2024-12-02 10:23:27,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:27,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:23:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:28,328 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:23:28,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:23:28,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986958297] [2024-12-02 10:23:28,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986958297] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:23:28,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175819266] [2024-12-02 10:23:28,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:23:28,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:23:28,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:23:28,330 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:23:28,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 10:23:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:23:28,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 10:23:28,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:23:29,059 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:23:29,060 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:23:30,438 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:23:30,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175819266] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:23:30,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:23:30,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-12-02 10:23:30,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996475701] [2024-12-02 10:23:30,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:23:30,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 10:23:30,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:23:30,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 10:23:30,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2024-12-02 10:23:30,440 INFO L87 Difference]: Start difference. First operand 410697 states and 510097 transitions. Second operand has 22 states, 22 states have (on average 15.272727272727273) internal successors, (336), 21 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:23:45,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:23:45,329 INFO L93 Difference]: Finished difference Result 783134 states and 974506 transitions. [2024-12-02 10:23:45,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 10:23:45,330 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 15.272727272727273) internal successors, (336), 21 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2024-12-02 10:23:45,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:23:45,811 INFO L225 Difference]: With dead ends: 783134 [2024-12-02 10:23:45,811 INFO L226 Difference]: Without dead ends: 420173 [2024-12-02 10:23:45,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=253, Invalid=803, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 10:23:45,967 INFO L435 NwaCegarLoop]: 1533 mSDtfsCounter, 11036 mSDsluCounter, 6481 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11036 SdHoareTripleChecker+Valid, 8014 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:23:45,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11036 Valid, 8014 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:23:46,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420173 states. [2024-12-02 10:24:01,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420173 to 394969. [2024-12-02 10:24:02,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394969 states, 394967 states have (on average 1.2329992125924445) internal successors, (486994), 394968 states have internal predecessors, (486994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:24:02,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394969 states to 394969 states and 486994 transitions. [2024-12-02 10:24:02,805 INFO L78 Accepts]: Start accepts. Automaton has 394969 states and 486994 transitions. Word has length 142 [2024-12-02 10:24:02,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:24:02,805 INFO L471 AbstractCegarLoop]: Abstraction has 394969 states and 486994 transitions. [2024-12-02 10:24:02,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 15.272727272727273) internal successors, (336), 21 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:24:02,805 INFO L276 IsEmpty]: Start isEmpty. Operand 394969 states and 486994 transitions. [2024-12-02 10:24:02,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 10:24:02,813 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:24:02,813 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:24:02,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 10:24:03,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-12-02 10:24:03,014 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:24:03,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:24:03,014 INFO L85 PathProgramCache]: Analyzing trace with hash -990885282, now seen corresponding path program 1 times [2024-12-02 10:24:03,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:24:03,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906454286] [2024-12-02 10:24:03,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:03,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:24:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:04,453 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:24:04,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:24:04,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906454286] [2024-12-02 10:24:04,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906454286] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:24:04,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22954954] [2024-12-02 10:24:04,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:24:04,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:24:04,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:24:04,455 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:24:04,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 10:24:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:24:04,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:24:04,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:24:05,804 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:24:05,804 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:24:08,546 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:24:08,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22954954] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:24:08,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:24:08,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 30 [2024-12-02 10:24:08,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826140596] [2024-12-02 10:24:08,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:24:08,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-12-02 10:24:08,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:24:08,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-12-02 10:24:08,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=762, Unknown=0, NotChecked=0, Total=870 [2024-12-02 10:24:08,549 INFO L87 Difference]: Start difference. First operand 394969 states and 486994 transitions. Second operand has 30 states, 30 states have (on average 13.566666666666666) internal successors, (407), 30 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:24:39,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:24:39,707 INFO L93 Difference]: Finished difference Result 903332 states and 1115094 transitions. [2024-12-02 10:24:39,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 10:24:39,707 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 13.566666666666666) internal successors, (407), 30 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-12-02 10:24:39,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:24:40,982 INFO L225 Difference]: With dead ends: 903332 [2024-12-02 10:24:40,982 INFO L226 Difference]: Without dead ends: 814658 [2024-12-02 10:24:41,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=404, Invalid=1666, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 10:24:41,090 INFO L435 NwaCegarLoop]: 1499 mSDtfsCounter, 12365 mSDsluCounter, 12183 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12365 SdHoareTripleChecker+Valid, 13682 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:24:41,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12365 Valid, 13682 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:24:41,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814658 states. [2024-12-02 10:25:11,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814658 to 666394. [2024-12-02 10:25:11,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666394 states, 666392 states have (on average 1.2258145355886625) internal successors, (816873), 666393 states have internal predecessors, (816873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:25:12,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666394 states to 666394 states and 816873 transitions. [2024-12-02 10:25:12,492 INFO L78 Accepts]: Start accepts. Automaton has 666394 states and 816873 transitions. Word has length 143 [2024-12-02 10:25:12,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:25:12,492 INFO L471 AbstractCegarLoop]: Abstraction has 666394 states and 816873 transitions. [2024-12-02 10:25:12,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 13.566666666666666) internal successors, (407), 30 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:25:12,493 INFO L276 IsEmpty]: Start isEmpty. Operand 666394 states and 816873 transitions. [2024-12-02 10:25:12,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 10:25:12,499 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:25:12,499 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:25:12,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-12-02 10:25:12,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-12-02 10:25:12,700 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:25:12,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:25:12,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1415052858, now seen corresponding path program 1 times [2024-12-02 10:25:12,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:25:12,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474015648] [2024-12-02 10:25:12,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:12,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:25:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:14,050 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:25:14,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:25:14,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474015648] [2024-12-02 10:25:14,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474015648] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:25:14,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894879474] [2024-12-02 10:25:14,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:25:14,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:25:14,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:25:14,053 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:25:14,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4249032-2a03-4454-aa01-b553210b6f4e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 10:25:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:25:14,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-02 10:25:14,379 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:25:18,923 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:25:18,923 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:25:25,338 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:25:25,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894879474] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:25:25,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:25:25,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 22, 26] total 56 [2024-12-02 10:25:25,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237034486] [2024-12-02 10:25:25,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:25:25,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-12-02 10:25:25,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:25:25,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-12-02 10:25:25,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=2724, Unknown=0, NotChecked=0, Total=3080 [2024-12-02 10:25:25,341 INFO L87 Difference]: Start difference. First operand 666394 states and 816873 transitions. Second operand has 56 states, 56 states have (on average 6.803571428571429) internal successors, (381), 56 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:26:56,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:26:56,095 INFO L93 Difference]: Finished difference Result 2157106 states and 2634243 transitions. [2024-12-02 10:26:56,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2024-12-02 10:26:56,095 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 6.803571428571429) internal successors, (381), 56 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-12-02 10:26:56,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:26:59,152 INFO L225 Difference]: With dead ends: 2157106 [2024-12-02 10:26:59,153 INFO L226 Difference]: Without dead ends: 1984562 [2024-12-02 10:26:59,449 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12394 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=6068, Invalid=29842, Unknown=0, NotChecked=0, Total=35910 [2024-12-02 10:26:59,453 INFO L435 NwaCegarLoop]: 1613 mSDtfsCounter, 30055 mSDsluCounter, 18595 mSDsCounter, 0 mSdLazyCounter, 5458 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30055 SdHoareTripleChecker+Valid, 20208 SdHoareTripleChecker+Invalid, 5585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 5458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:26:59,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30055 Valid, 20208 Invalid, 5585 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [127 Valid, 5458 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-12-02 10:27:00,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1984562 states.