./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-8.i --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_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/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_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/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_bb42d6fa-94e5-48f5-b28e-4f447e408af3/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 3a780e8c08e2ad68e979e131bc4f4540ca41356fe45ef323c559a838b7c9745a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:14:59,288 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:14:59,342 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 13:14:59,346 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:14:59,346 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:14:59,367 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:14:59,367 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:14:59,368 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:14:59,368 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:14:59,368 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:14:59,368 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:14:59,368 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:14:59,369 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:14:59,369 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:14:59,369 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:14:59,369 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:14:59,369 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:14:59,369 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:14:59,369 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:14:59,369 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:14:59,369 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:14:59,370 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:14:59,370 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:14:59,370 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:14:59,370 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:14:59,370 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:14:59,370 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:14:59,370 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:14:59,370 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:14:59,370 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:14:59,371 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:14:59,371 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:14:59,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:14:59,371 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:14:59,371 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:14:59,371 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:14:59,371 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:14:59,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:14:59,371 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:14:59,372 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:14:59,372 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:14:59,372 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:14:59,372 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:14:59,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:14:59,372 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:14:59,372 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:14:59,372 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:14:59,372 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:14:59,372 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_bb42d6fa-94e5-48f5-b28e-4f447e408af3/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 -> 3a780e8c08e2ad68e979e131bc4f4540ca41356fe45ef323c559a838b7c9745a [2024-12-02 13:14:59,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:14:59,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:14:59,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:14:59,587 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:14:59,588 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:14:59,589 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-8.i [2024-12-02 13:15:02,425 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/data/21d05e4cd/8568084308e4489d88c7060f19e11733/FLAG32b6dcf86 [2024-12-02 13:15:02,657 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:15:02,658 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-8.i [2024-12-02 13:15:02,670 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/data/21d05e4cd/8568084308e4489d88c7060f19e11733/FLAG32b6dcf86 [2024-12-02 13:15:02,680 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/data/21d05e4cd/8568084308e4489d88c7060f19e11733 [2024-12-02 13:15:02,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:15:02,683 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:15:02,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:15:02,684 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:15:02,687 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:15:02,688 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:15:02" (1/1) ... [2024-12-02 13:15:02,688 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@440f1847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:15:02, skipping insertion in model container [2024-12-02 13:15:02,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:15:02" (1/1) ... [2024-12-02 13:15:02,719 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:15:02,860 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_bb42d6fa-94e5-48f5-b28e-4f447e408af3/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-8.i[915,928] [2024-12-02 13:15:03,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:15:03,025 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:15:03,036 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_bb42d6fa-94e5-48f5-b28e-4f447e408af3/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-8.i[915,928] [2024-12-02 13:15:03,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:15:03,133 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:15:03,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:15:03 WrapperNode [2024-12-02 13:15:03,134 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:15:03,135 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:15:03,135 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:15:03,135 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:15:03,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:15:03" (1/1) ... [2024-12-02 13:15:03,161 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:15:03" (1/1) ... [2024-12-02 13:15:03,235 INFO L138 Inliner]: procedures = 26, calls = 147, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 939 [2024-12-02 13:15:03,235 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:15:03,236 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:15:03,236 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:15:03,236 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:15:03,245 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:15:03" (1/1) ... [2024-12-02 13:15:03,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:15:03" (1/1) ... [2024-12-02 13:15:03,256 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:15:03" (1/1) ... [2024-12-02 13:15:03,283 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 13:15:03,283 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:15:03" (1/1) ... [2024-12-02 13:15:03,284 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:15:03" (1/1) ... [2024-12-02 13:15:03,305 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:15:03" (1/1) ... [2024-12-02 13:15:03,308 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:15:03" (1/1) ... [2024-12-02 13:15:03,317 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:15:03" (1/1) ... [2024-12-02 13:15:03,324 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:15:03" (1/1) ... [2024-12-02 13:15:03,331 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:15:03" (1/1) ... [2024-12-02 13:15:03,342 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:15:03,343 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:15:03,343 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:15:03,343 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:15:03,344 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:15:03" (1/1) ... [2024-12-02 13:15:03,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:15:03,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:15:03,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:15:03,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:15:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:15:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 13:15:03,421 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 13:15:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:15:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:15:03,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:15:03,553 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:15:03,555 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:15:04,825 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-12-02 13:15:04,825 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:15:04,844 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:15:04,844 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:15:04,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:15:04 BoogieIcfgContainer [2024-12-02 13:15:04,844 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:15:04,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:15:04,847 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:15:04,852 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:15:04,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:15:02" (1/3) ... [2024-12-02 13:15:04,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2dba11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:15:04, skipping insertion in model container [2024-12-02 13:15:04,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:15:03" (2/3) ... [2024-12-02 13:15:04,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2dba11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:15:04, skipping insertion in model container [2024-12-02 13:15:04,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:15:04" (3/3) ... [2024-12-02 13:15:04,854 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-8.i [2024-12-02 13:15:04,870 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:15:04,873 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-8.i that has 2 procedures, 396 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 13:15:04,943 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:15:04,955 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;@372f71c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:15:04,955 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 13:15:04,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 396 states, 259 states have (on average 1.5907335907335907) internal successors, (412), 260 states have internal predecessors, (412), 134 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2024-12-02 13:15:05,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 833 [2024-12-02 13:15:05,010 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:15:05,012 INFO L218 NwaCegarLoop]: trace histogram [134, 134, 134, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:15:05,012 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:15:05,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:15:05,018 INFO L85 PathProgramCache]: Analyzing trace with hash -586283142, now seen corresponding path program 1 times [2024-12-02 13:15:05,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:15:05,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736361053] [2024-12-02 13:15:05,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:15:05,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:15:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:15:05,786 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 0 proven. 266 refuted. 0 times theorem prover too weak. 35378 trivial. 0 not checked. [2024-12-02 13:15:05,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:15:05,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736361053] [2024-12-02 13:15:05,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736361053] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:15:05,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647866198] [2024-12-02 13:15:05,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:15:05,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:15:05,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:15:05,791 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:15:05,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:15:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:15:06,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 1850 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 13:15:06,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:15:06,407 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 35378 trivial. 0 not checked. [2024-12-02 13:15:06,407 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:15:06,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647866198] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:15:06,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:15:06,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 13:15:06,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723680259] [2024-12-02 13:15:06,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:15:06,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:15:06,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:15:06,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:15:06,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:15:06,433 INFO L87 Difference]: Start difference. First operand has 396 states, 259 states have (on average 1.5907335907335907) internal successors, (412), 260 states have internal predecessors, (412), 134 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) Second operand has 2 states, 2 states have (on average 83.5) internal successors, (167), 2 states have internal predecessors, (167), 2 states have call successors, (134), 2 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 2 states have call successors, (134) [2024-12-02 13:15:06,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:15:06,499 INFO L93 Difference]: Finished difference Result 785 states and 1488 transitions. [2024-12-02 13:15:06,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:15:06,502 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 83.5) internal successors, (167), 2 states have internal predecessors, (167), 2 states have call successors, (134), 2 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 2 states have call successors, (134) Word has length 832 [2024-12-02 13:15:06,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:15:06,511 INFO L225 Difference]: With dead ends: 785 [2024-12-02 13:15:06,511 INFO L226 Difference]: Without dead ends: 392 [2024-12-02 13:15:06,516 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 833 GetRequests, 833 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 13:15:06,518 INFO L435 NwaCegarLoop]: 669 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, 669 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 13:15:06,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:15:06,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-12-02 13:15:06,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2024-12-02 13:15:06,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 256 states have (on average 1.56640625) internal successors, (401), 256 states have internal predecessors, (401), 134 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2024-12-02 13:15:06,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 669 transitions. [2024-12-02 13:15:06,600 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 669 transitions. Word has length 832 [2024-12-02 13:15:06,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:15:06,601 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 669 transitions. [2024-12-02 13:15:06,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 83.5) internal successors, (167), 2 states have internal predecessors, (167), 2 states have call successors, (134), 2 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 2 states have call successors, (134) [2024-12-02 13:15:06,602 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 669 transitions. [2024-12-02 13:15:06,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 834 [2024-12-02 13:15:06,630 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:15:06,631 INFO L218 NwaCegarLoop]: trace histogram [134, 134, 134, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:15:06,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:15:06,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 13:15:06,831 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:15:06,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:15:06,832 INFO L85 PathProgramCache]: Analyzing trace with hash 369902146, now seen corresponding path program 1 times [2024-12-02 13:15:06,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:15:06,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543222559] [2024-12-02 13:15:06,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:15:06,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:15:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:15:07,712 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35644 trivial. 0 not checked. [2024-12-02 13:15:07,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:15:07,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543222559] [2024-12-02 13:15:07,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543222559] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:15:07,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:15:07,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:15:07,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826118342] [2024-12-02 13:15:07,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:15:07,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:15:07,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:15:07,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:15:07,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:15:07,716 INFO L87 Difference]: Start difference. First operand 392 states and 669 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) [2024-12-02 13:15:07,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:15:07,809 INFO L93 Difference]: Finished difference Result 1010 states and 1734 transitions. [2024-12-02 13:15:07,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:15:07,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) Word has length 833 [2024-12-02 13:15:07,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:15:07,817 INFO L225 Difference]: With dead ends: 1010 [2024-12-02 13:15:07,817 INFO L226 Difference]: Without dead ends: 621 [2024-12-02 13:15:07,819 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 13:15:07,819 INFO L435 NwaCegarLoop]: 663 mSDtfsCounter, 397 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:15:07,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 1313 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:15:07,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2024-12-02 13:15:07,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 618. [2024-12-02 13:15:07,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 440 states have (on average 1.6227272727272728) internal successors, (714), 441 states have internal predecessors, (714), 175 states have call successors, (175), 2 states have call predecessors, (175), 2 states have return successors, (175), 174 states have call predecessors, (175), 175 states have call successors, (175) [2024-12-02 13:15:07,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 1064 transitions. [2024-12-02 13:15:07,887 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 1064 transitions. Word has length 833 [2024-12-02 13:15:07,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:15:07,890 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 1064 transitions. [2024-12-02 13:15:07,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) [2024-12-02 13:15:07,890 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 1064 transitions. [2024-12-02 13:15:07,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 834 [2024-12-02 13:15:07,900 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:15:07,901 INFO L218 NwaCegarLoop]: trace histogram [134, 134, 134, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:15:07,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:15:07,901 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:15:07,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:15:07,902 INFO L85 PathProgramCache]: Analyzing trace with hash 391287358, now seen corresponding path program 1 times [2024-12-02 13:15:07,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:15:07,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686720026] [2024-12-02 13:15:07,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:15:07,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:15:08,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:15:08,524 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35644 trivial. 0 not checked. [2024-12-02 13:15:08,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:15:08,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686720026] [2024-12-02 13:15:08,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686720026] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:15:08,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:15:08,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:15:08,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593793889] [2024-12-02 13:15:08,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:15:08,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:15:08,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:15:08,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:15:08,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:15:08,527 INFO L87 Difference]: Start difference. First operand 618 states and 1064 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) [2024-12-02 13:15:08,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:15:08,641 INFO L93 Difference]: Finished difference Result 1842 states and 3174 transitions. [2024-12-02 13:15:08,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:15:08,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) Word has length 833 [2024-12-02 13:15:08,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:15:08,653 INFO L225 Difference]: With dead ends: 1842 [2024-12-02 13:15:08,653 INFO L226 Difference]: Without dead ends: 1227 [2024-12-02 13:15:08,655 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 13:15:08,656 INFO L435 NwaCegarLoop]: 1070 mSDtfsCounter, 607 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 1724 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:15:08,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 1724 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:15:08,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2024-12-02 13:15:08,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1224. [2024-12-02 13:15:08,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 869 states have (on average 1.6110471806674338) internal successors, (1400), 871 states have internal predecessors, (1400), 350 states have call successors, (350), 4 states have call predecessors, (350), 4 states have return successors, (350), 348 states have call predecessors, (350), 350 states have call successors, (350) [2024-12-02 13:15:08,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 2100 transitions. [2024-12-02 13:15:08,828 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 2100 transitions. Word has length 833 [2024-12-02 13:15:08,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:15:08,829 INFO L471 AbstractCegarLoop]: Abstraction has 1224 states and 2100 transitions. [2024-12-02 13:15:08,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) [2024-12-02 13:15:08,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 2100 transitions. [2024-12-02 13:15:08,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 834 [2024-12-02 13:15:08,838 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:15:08,839 INFO L218 NwaCegarLoop]: trace histogram [134, 134, 134, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:15:08,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:15:08,839 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:15:08,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:15:08,840 INFO L85 PathProgramCache]: Analyzing trace with hash 453326972, now seen corresponding path program 1 times [2024-12-02 13:15:08,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:15:08,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612319721] [2024-12-02 13:15:08,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:15:08,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:15:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:15:09,243 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35644 trivial. 0 not checked. [2024-12-02 13:15:09,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:15:09,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612319721] [2024-12-02 13:15:09,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612319721] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:15:09,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:15:09,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:15:09,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869906880] [2024-12-02 13:15:09,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:15:09,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:15:09,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:15:09,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:15:09,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:15:09,246 INFO L87 Difference]: Start difference. First operand 1224 states and 2100 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) [2024-12-02 13:15:09,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:15:09,389 INFO L93 Difference]: Finished difference Result 3666 states and 6294 transitions. [2024-12-02 13:15:09,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:15:09,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) Word has length 833 [2024-12-02 13:15:09,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:15:09,414 INFO L225 Difference]: With dead ends: 3666 [2024-12-02 13:15:09,414 INFO L226 Difference]: Without dead ends: 2445 [2024-12-02 13:15:09,417 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 13:15:09,418 INFO L435 NwaCegarLoop]: 1276 mSDtfsCounter, 657 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:15:09,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1937 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:15:09,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2445 states. [2024-12-02 13:15:09,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2445 to 2443. [2024-12-02 13:15:09,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 1734 states have (on average 1.6055363321799307) internal successors, (2784), 1738 states have internal predecessors, (2784), 700 states have call successors, (700), 8 states have call predecessors, (700), 8 states have return successors, (700), 696 states have call predecessors, (700), 700 states have call successors, (700) [2024-12-02 13:15:09,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 4184 transitions. [2024-12-02 13:15:09,696 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 4184 transitions. Word has length 833 [2024-12-02 13:15:09,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:15:09,697 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 4184 transitions. [2024-12-02 13:15:09,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) [2024-12-02 13:15:09,698 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 4184 transitions. [2024-12-02 13:15:09,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 834 [2024-12-02 13:15:09,703 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:15:09,703 INFO L218 NwaCegarLoop]: trace histogram [134, 134, 134, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:15:09,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:15:09,704 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:15:09,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:15:09,704 INFO L85 PathProgramCache]: Analyzing trace with hash 876028798, now seen corresponding path program 1 times [2024-12-02 13:15:09,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:15:09,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128344942] [2024-12-02 13:15:09,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:15:09,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:15:09,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:15:10,264 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35644 trivial. 0 not checked. [2024-12-02 13:15:10,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:15:10,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128344942] [2024-12-02 13:15:10,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128344942] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:15:10,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:15:10,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:15:10,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371064367] [2024-12-02 13:15:10,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:15:10,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:15:10,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:15:10,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:15:10,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:15:10,267 INFO L87 Difference]: Start difference. First operand 2443 states and 4184 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) [2024-12-02 13:15:10,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:15:10,489 INFO L93 Difference]: Finished difference Result 4887 states and 8370 transitions. [2024-12-02 13:15:10,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:15:10,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) Word has length 833 [2024-12-02 13:15:10,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:15:10,507 INFO L225 Difference]: With dead ends: 4887 [2024-12-02 13:15:10,507 INFO L226 Difference]: Without dead ends: 2447 [2024-12-02 13:15:10,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:15:10,515 INFO L435 NwaCegarLoop]: 1069 mSDtfsCounter, 620 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 2785 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:15:10,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 2785 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:15:10,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2447 states. [2024-12-02 13:15:10,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2447 to 2443. [2024-12-02 13:15:10,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 1734 states have (on average 1.6032295271049597) internal successors, (2780), 1738 states have internal predecessors, (2780), 700 states have call successors, (700), 8 states have call predecessors, (700), 8 states have return successors, (700), 696 states have call predecessors, (700), 700 states have call successors, (700) [2024-12-02 13:15:10,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 4180 transitions. [2024-12-02 13:15:10,894 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 4180 transitions. Word has length 833 [2024-12-02 13:15:10,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:15:10,895 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 4180 transitions. [2024-12-02 13:15:10,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) [2024-12-02 13:15:10,896 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 4180 transitions. [2024-12-02 13:15:10,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 836 [2024-12-02 13:15:10,904 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:15:10,904 INFO L218 NwaCegarLoop]: trace histogram [134, 134, 134, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:15:10,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:15:10,905 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:15:10,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:15:10,905 INFO L85 PathProgramCache]: Analyzing trace with hash 993371882, now seen corresponding path program 1 times [2024-12-02 13:15:10,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:15:10,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304145945] [2024-12-02 13:15:10,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:15:10,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:15:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:15:11,649 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35644 trivial. 0 not checked. [2024-12-02 13:15:11,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:15:11,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304145945] [2024-12-02 13:15:11,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304145945] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:15:11,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:15:11,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:15:11,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21774110] [2024-12-02 13:15:11,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:15:11,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:15:11,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:15:11,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:15:11,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:15:11,653 INFO L87 Difference]: Start difference. First operand 2443 states and 4180 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 2 states have call predecessors, (134), 2 states have call successors, (134) [2024-12-02 13:15:12,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:15:12,914 INFO L93 Difference]: Finished difference Result 8945 states and 15319 transitions. [2024-12-02 13:15:12,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:15:12,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 2 states have call predecessors, (134), 2 states have call successors, (134) Word has length 835 [2024-12-02 13:15:12,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:15:12,962 INFO L225 Difference]: With dead ends: 8945 [2024-12-02 13:15:12,962 INFO L226 Difference]: Without dead ends: 6505 [2024-12-02 13:15:12,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:15:12,976 INFO L435 NwaCegarLoop]: 802 mSDtfsCounter, 1581 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1581 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 13:15:12,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1581 Valid, 2016 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 13:15:12,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6505 states. [2024-12-02 13:15:13,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6505 to 6493. [2024-12-02 13:15:13,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6493 states, 4788 states have (on average 1.6198830409356726) internal successors, (7756), 4804 states have internal predecessors, (7756), 1680 states have call successors, (1680), 24 states have call predecessors, (1680), 24 states have return successors, (1680), 1664 states have call predecessors, (1680), 1680 states have call successors, (1680) [2024-12-02 13:15:13,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6493 states to 6493 states and 11116 transitions. [2024-12-02 13:15:13,850 INFO L78 Accepts]: Start accepts. Automaton has 6493 states and 11116 transitions. Word has length 835 [2024-12-02 13:15:13,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:15:13,851 INFO L471 AbstractCegarLoop]: Abstraction has 6493 states and 11116 transitions. [2024-12-02 13:15:13,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 2 states have call predecessors, (134), 2 states have call successors, (134) [2024-12-02 13:15:13,852 INFO L276 IsEmpty]: Start isEmpty. Operand 6493 states and 11116 transitions. [2024-12-02 13:15:13,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 836 [2024-12-02 13:15:13,862 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:15:13,863 INFO L218 NwaCegarLoop]: trace histogram [134, 134, 134, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:15:13,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 13:15:13,863 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:15:13,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:15:13,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1392402012, now seen corresponding path program 1 times [2024-12-02 13:15:13,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:15:13,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87742944] [2024-12-02 13:15:13,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:15:13,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:15:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:15:14,803 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35644 trivial. 0 not checked. [2024-12-02 13:15:14,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:15:14,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87742944] [2024-12-02 13:15:14,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87742944] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:15:14,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:15:14,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:15:14,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424601874] [2024-12-02 13:15:14,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:15:14,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:15:14,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:15:14,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:15:14,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:15:14,805 INFO L87 Difference]: Start difference. First operand 6493 states and 11116 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) [2024-12-02 13:15:15,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:15:15,976 INFO L93 Difference]: Finished difference Result 19497 states and 33390 transitions. [2024-12-02 13:15:15,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:15:15,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) Word has length 835 [2024-12-02 13:15:15,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:15:16,056 INFO L225 Difference]: With dead ends: 19497 [2024-12-02 13:15:16,057 INFO L226 Difference]: Without dead ends: 13007 [2024-12-02 13:15:16,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 13:15:16,083 INFO L435 NwaCegarLoop]: 898 mSDtfsCounter, 437 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 2165 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:15:16,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 2165 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:15:16,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13007 states. [2024-12-02 13:15:17,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13007 to 12981. [2024-12-02 13:15:17,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12981 states, 9572 states have (on average 1.615127455077309) internal successors, (15460), 9604 states have internal predecessors, (15460), 3360 states have call successors, (3360), 48 states have call predecessors, (3360), 48 states have return successors, (3360), 3328 states have call predecessors, (3360), 3360 states have call successors, (3360) [2024-12-02 13:15:17,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12981 states to 12981 states and 22180 transitions. [2024-12-02 13:15:17,783 INFO L78 Accepts]: Start accepts. Automaton has 12981 states and 22180 transitions. Word has length 835 [2024-12-02 13:15:17,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:15:17,785 INFO L471 AbstractCegarLoop]: Abstraction has 12981 states and 22180 transitions. [2024-12-02 13:15:17,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) [2024-12-02 13:15:17,786 INFO L276 IsEmpty]: Start isEmpty. Operand 12981 states and 22180 transitions. [2024-12-02 13:15:17,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2024-12-02 13:15:17,801 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:15:17,801 INFO L218 NwaCegarLoop]: trace histogram [134, 134, 134, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:15:17,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:15:17,801 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:15:17,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:15:17,802 INFO L85 PathProgramCache]: Analyzing trace with hash -141355831, now seen corresponding path program 1 times [2024-12-02 13:15:17,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:15:17,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125804199] [2024-12-02 13:15:17,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:15:17,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:15:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:15:19,616 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35644 trivial. 0 not checked. [2024-12-02 13:15:19,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:15:19,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125804199] [2024-12-02 13:15:19,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125804199] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:15:19,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:15:19,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:15:19,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728251849] [2024-12-02 13:15:19,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:15:19,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:15:19,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:15:19,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:15:19,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:15:19,619 INFO L87 Difference]: Start difference. First operand 12981 states and 22180 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) [2024-12-02 13:15:21,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:15:21,010 INFO L93 Difference]: Finished difference Result 36911 states and 63043 transitions. [2024-12-02 13:15:21,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:15:21,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) Word has length 836 [2024-12-02 13:15:21,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:15:21,087 INFO L225 Difference]: With dead ends: 36911 [2024-12-02 13:15:21,087 INFO L226 Difference]: Without dead ends: 23933 [2024-12-02 13:15:21,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 13:15:21,117 INFO L435 NwaCegarLoop]: 916 mSDtfsCounter, 753 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 2269 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:15:21,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 2269 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:15:21,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23933 states. [2024-12-02 13:15:22,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23933 to 22107. [2024-12-02 13:15:22,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22107 states, 16842 states have (on average 1.6296164351027194) internal successors, (27446), 16922 states have internal predecessors, (27446), 5168 states have call successors, (5168), 96 states have call predecessors, (5168), 96 states have return successors, (5168), 5088 states have call predecessors, (5168), 5168 states have call successors, (5168) [2024-12-02 13:15:22,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22107 states to 22107 states and 37782 transitions. [2024-12-02 13:15:22,752 INFO L78 Accepts]: Start accepts. Automaton has 22107 states and 37782 transitions. Word has length 836 [2024-12-02 13:15:22,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:15:22,753 INFO L471 AbstractCegarLoop]: Abstraction has 22107 states and 37782 transitions. [2024-12-02 13:15:22,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) [2024-12-02 13:15:22,754 INFO L276 IsEmpty]: Start isEmpty. Operand 22107 states and 37782 transitions. [2024-12-02 13:15:22,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2024-12-02 13:15:22,768 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:15:22,769 INFO L218 NwaCegarLoop]: trace histogram [134, 134, 134, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:15:22,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:15:22,769 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:15:22,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:15:22,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1499183287, now seen corresponding path program 1 times [2024-12-02 13:15:22,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:15:22,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487510785] [2024-12-02 13:15:22,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:15:22,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:15:23,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:15:24,720 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 63 proven. 336 refuted. 0 times theorem prover too weak. 35245 trivial. 0 not checked. [2024-12-02 13:15:24,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:15:24,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487510785] [2024-12-02 13:15:24,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487510785] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:15:24,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870839341] [2024-12-02 13:15:24,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:15:24,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:15:24,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:15:24,730 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:15:24,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:15:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:15:25,274 INFO L256 TraceCheckSpWp]: Trace formula consists of 1856 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:15:25,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:15:25,620 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 5745 proven. 33 refuted. 0 times theorem prover too weak. 29866 trivial. 0 not checked. [2024-12-02 13:15:25,620 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:15:26,286 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 366 proven. 33 refuted. 0 times theorem prover too weak. 35245 trivial. 0 not checked. [2024-12-02 13:15:26,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870839341] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:15:26,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:15:26,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 11 [2024-12-02 13:15:26,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328391713] [2024-12-02 13:15:26,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:15:26,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 13:15:26,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:15:26,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 13:15:26,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:15:26,291 INFO L87 Difference]: Start difference. First operand 22107 states and 37782 transitions. Second operand has 11 states, 11 states have (on average 30.818181818181817) internal successors, (339), 11 states have internal predecessors, (339), 4 states have call successors, (279), 2 states have call predecessors, (279), 4 states have return successors, (280), 4 states have call predecessors, (280), 4 states have call successors, (280) [2024-12-02 13:15:31,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:15:31,964 INFO L93 Difference]: Finished difference Result 77167 states and 129438 transitions. [2024-12-02 13:15:31,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-12-02 13:15:31,965 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 30.818181818181817) internal successors, (339), 11 states have internal predecessors, (339), 4 states have call successors, (279), 2 states have call predecessors, (279), 4 states have return successors, (280), 4 states have call predecessors, (280), 4 states have call successors, (280) Word has length 836 [2024-12-02 13:15:31,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:15:32,218 INFO L225 Difference]: With dead ends: 77167 [2024-12-02 13:15:32,218 INFO L226 Difference]: Without dead ends: 55063 [2024-12-02 13:15:32,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1706 GetRequests, 1672 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=327, Invalid=795, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 13:15:32,267 INFO L435 NwaCegarLoop]: 559 mSDtfsCounter, 1595 mSDsluCounter, 2637 mSDsCounter, 0 mSdLazyCounter, 1718 mSolverCounterSat, 809 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 3196 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 809 IncrementalHoareTripleChecker+Valid, 1718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:15:32,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1716 Valid, 3196 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [809 Valid, 1718 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 13:15:32,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55063 states. [2024-12-02 13:15:36,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55063 to 49521. [2024-12-02 13:15:36,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49521 states, 36752 states have (on average 1.5927296473661297) internal successors, (58536), 37008 states have internal predecessors, (58536), 12352 states have call successors, (12352), 416 states have call predecessors, (12352), 416 states have return successors, (12352), 12096 states have call predecessors, (12352), 12352 states have call successors, (12352) [2024-12-02 13:15:36,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49521 states to 49521 states and 83240 transitions. [2024-12-02 13:15:36,853 INFO L78 Accepts]: Start accepts. Automaton has 49521 states and 83240 transitions. Word has length 836 [2024-12-02 13:15:36,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:15:36,853 INFO L471 AbstractCegarLoop]: Abstraction has 49521 states and 83240 transitions. [2024-12-02 13:15:36,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 30.818181818181817) internal successors, (339), 11 states have internal predecessors, (339), 4 states have call successors, (279), 2 states have call predecessors, (279), 4 states have return successors, (280), 4 states have call predecessors, (280), 4 states have call successors, (280) [2024-12-02 13:15:36,854 INFO L276 IsEmpty]: Start isEmpty. Operand 49521 states and 83240 transitions. [2024-12-02 13:15:36,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2024-12-02 13:15:36,865 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:15:36,866 INFO L218 NwaCegarLoop]: trace histogram [134, 134, 134, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:15:36,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 13:15:37,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:15:37,066 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:15:37,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:15:37,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1573178633, now seen corresponding path program 1 times [2024-12-02 13:15:37,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:15:37,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47535851] [2024-12-02 13:15:37,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:15:37,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:15:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:15:38,219 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 360 proven. 39 refuted. 0 times theorem prover too weak. 35245 trivial. 0 not checked. [2024-12-02 13:15:38,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:15:38,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47535851] [2024-12-02 13:15:38,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47535851] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:15:38,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854119106] [2024-12-02 13:15:38,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:15:38,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:15:38,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:15:38,221 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:15:38,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:15:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:15:38,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 1853 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:15:38,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:15:39,027 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 6613 proven. 39 refuted. 0 times theorem prover too weak. 28992 trivial. 0 not checked. [2024-12-02 13:15:39,027 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:15:39,532 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 360 proven. 39 refuted. 0 times theorem prover too weak. 35245 trivial. 0 not checked. [2024-12-02 13:15:39,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854119106] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:15:39,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:15:39,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-12-02 13:15:39,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14080591] [2024-12-02 13:15:39,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:15:39,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:15:39,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:15:39,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:15:39,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:15:39,537 INFO L87 Difference]: Start difference. First operand 49521 states and 83240 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 7 states have internal predecessors, (178), 2 states have call successors, (147), 2 states have call predecessors, (147), 4 states have return successors, (148), 2 states have call predecessors, (148), 2 states have call successors, (148) [2024-12-02 13:15:43,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:15:43,573 INFO L93 Difference]: Finished difference Result 99871 states and 167277 transitions. [2024-12-02 13:15:43,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:15:43,573 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 7 states have internal predecessors, (178), 2 states have call successors, (147), 2 states have call predecessors, (147), 4 states have return successors, (148), 2 states have call predecessors, (148), 2 states have call successors, (148) Word has length 836 [2024-12-02 13:15:43,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:15:43,743 INFO L225 Difference]: With dead ends: 99871 [2024-12-02 13:15:43,743 INFO L226 Difference]: Without dead ends: 50353 [2024-12-02 13:15:43,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1679 GetRequests, 1669 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:15:43,837 INFO L435 NwaCegarLoop]: 527 mSDtfsCounter, 441 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:15:43,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 1312 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:15:43,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50353 states. [2024-12-02 13:15:48,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50353 to 49649. [2024-12-02 13:15:48,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49649 states, 36848 states have (on average 1.582066869300912) internal successors, (58296), 37104 states have internal predecessors, (58296), 12352 states have call successors, (12352), 448 states have call predecessors, (12352), 448 states have return successors, (12352), 12096 states have call predecessors, (12352), 12352 states have call successors, (12352) [2024-12-02 13:15:48,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49649 states to 49649 states and 83000 transitions. [2024-12-02 13:15:48,472 INFO L78 Accepts]: Start accepts. Automaton has 49649 states and 83000 transitions. Word has length 836 [2024-12-02 13:15:48,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:15:48,473 INFO L471 AbstractCegarLoop]: Abstraction has 49649 states and 83000 transitions. [2024-12-02 13:15:48,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 7 states have internal predecessors, (178), 2 states have call successors, (147), 2 states have call predecessors, (147), 4 states have return successors, (148), 2 states have call predecessors, (148), 2 states have call successors, (148) [2024-12-02 13:15:48,473 INFO L276 IsEmpty]: Start isEmpty. Operand 49649 states and 83000 transitions. [2024-12-02 13:15:48,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2024-12-02 13:15:48,483 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:15:48,484 INFO L218 NwaCegarLoop]: trace histogram [134, 134, 134, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:15:48,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 13:15:48,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 13:15:48,684 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:15:48,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:15:48,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1439165127, now seen corresponding path program 1 times [2024-12-02 13:15:48,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:15:48,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377219277] [2024-12-02 13:15:48,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:15:48,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:15:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:15:52,323 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 165 proven. 234 refuted. 0 times theorem prover too weak. 35245 trivial. 0 not checked. [2024-12-02 13:15:52,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:15:52,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377219277] [2024-12-02 13:15:52,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377219277] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:15:52,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203649293] [2024-12-02 13:15:52,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:15:52,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:15:52,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:15:52,325 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:15:52,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 13:15:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:15:52,778 INFO L256 TraceCheckSpWp]: Trace formula consists of 1854 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:15:52,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:15:52,976 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35644 trivial. 0 not checked. [2024-12-02 13:15:52,976 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:15:52,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203649293] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:15:52,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:15:52,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-12-02 13:15:52,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290433415] [2024-12-02 13:15:52,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:15:52,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:15:52,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:15:52,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:15:52,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:15:52,979 INFO L87 Difference]: Start difference. First operand 49649 states and 83000 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) [2024-12-02 13:15:59,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:15:59,271 INFO L93 Difference]: Finished difference Result 136961 states and 228718 transitions. [2024-12-02 13:15:59,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:15:59,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) Word has length 836 [2024-12-02 13:15:59,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:15:59,545 INFO L225 Difference]: With dead ends: 136961 [2024-12-02 13:15:59,546 INFO L226 Difference]: Without dead ends: 87315 [2024-12-02 13:15:59,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 849 GetRequests, 839 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:15:59,638 INFO L435 NwaCegarLoop]: 861 mSDtfsCounter, 288 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 2268 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:15:59,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 2268 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:15:59,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87315 states. [2024-12-02 13:16:06,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87315 to 87185. [2024-12-02 13:16:06,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87185 states, 65008 states have (on average 1.579990155057839) internal successors, (102712), 65552 states have internal predecessors, (102712), 21344 states have call successors, (21344), 832 states have call predecessors, (21344), 832 states have return successors, (21344), 20800 states have call predecessors, (21344), 21344 states have call successors, (21344) [2024-12-02 13:16:06,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87185 states to 87185 states and 145400 transitions. [2024-12-02 13:16:06,937 INFO L78 Accepts]: Start accepts. Automaton has 87185 states and 145400 transitions. Word has length 836 [2024-12-02 13:16:06,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:16:06,938 INFO L471 AbstractCegarLoop]: Abstraction has 87185 states and 145400 transitions. [2024-12-02 13:16:06,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) [2024-12-02 13:16:06,939 INFO L276 IsEmpty]: Start isEmpty. Operand 87185 states and 145400 transitions. [2024-12-02 13:16:06,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2024-12-02 13:16:06,957 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:16:06,957 INFO L218 NwaCegarLoop]: trace histogram [134, 134, 134, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:16:06,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 13:16:07,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 13:16:07,158 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:16:07,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:16:07,158 INFO L85 PathProgramCache]: Analyzing trace with hash -894227511, now seen corresponding path program 1 times [2024-12-02 13:16:07,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:16:07,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812610809] [2024-12-02 13:16:07,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:16:07,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:16:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:16:08,382 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35644 trivial. 0 not checked. [2024-12-02 13:16:08,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:16:08,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812610809] [2024-12-02 13:16:08,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812610809] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:16:08,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:16:08,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 13:16:08,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711988308] [2024-12-02 13:16:08,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:16:08,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:16:08,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:16:08,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:16:08,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:16:08,383 INFO L87 Difference]: Start difference. First operand 87185 states and 145400 transitions. Second operand has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) [2024-12-02 13:16:31,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:16:31,454 INFO L93 Difference]: Finished difference Result 436321 states and 733286 transitions. [2024-12-02 13:16:31,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 13:16:31,455 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) Word has length 836 [2024-12-02 13:16:31,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:16:32,522 INFO L225 Difference]: With dead ends: 436321 [2024-12-02 13:16:32,523 INFO L226 Difference]: Without dead ends: 349139 [2024-12-02 13:16:32,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:16:32,732 INFO L435 NwaCegarLoop]: 1410 mSDtfsCounter, 2659 mSDsluCounter, 4653 mSDsCounter, 0 mSdLazyCounter, 2953 mSolverCounterSat, 1011 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2659 SdHoareTripleChecker+Valid, 6063 SdHoareTripleChecker+Invalid, 3964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1011 IncrementalHoareTripleChecker+Valid, 2953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:16:32,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2659 Valid, 6063 Invalid, 3964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1011 Valid, 2953 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 13:16:32,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349139 states. [2024-12-02 13:16:53,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349139 to 228473. [2024-12-02 13:16:54,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228473 states, 169848 states have (on average 1.5824972916961046) internal successors, (268784), 171224 states have internal predecessors, (268784), 56480 states have call successors, (56480), 2144 states have call predecessors, (56480), 2144 states have return successors, (56480), 55104 states have call predecessors, (56480), 56480 states have call successors, (56480) [2024-12-02 13:16:54,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228473 states to 228473 states and 381744 transitions. [2024-12-02 13:16:55,019 INFO L78 Accepts]: Start accepts. Automaton has 228473 states and 381744 transitions. Word has length 836 [2024-12-02 13:16:55,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:16:55,020 INFO L471 AbstractCegarLoop]: Abstraction has 228473 states and 381744 transitions. [2024-12-02 13:16:55,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 1 states have call successors, (134), 1 states have call predecessors, (134), 1 states have return successors, (134), 1 states have call predecessors, (134), 1 states have call successors, (134) [2024-12-02 13:16:55,020 INFO L276 IsEmpty]: Start isEmpty. Operand 228473 states and 381744 transitions. [2024-12-02 13:16:55,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2024-12-02 13:16:55,061 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:16:55,062 INFO L218 NwaCegarLoop]: trace histogram [134, 134, 134, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:16:55,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 13:16:55,062 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 13:16:55,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:16:55,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1481033525, now seen corresponding path program 1 times [2024-12-02 13:16:55,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:16:55,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645593082] [2024-12-02 13:16:55,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:16:55,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:16:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:16:57,672 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 165 proven. 234 refuted. 0 times theorem prover too weak. 35245 trivial. 0 not checked. [2024-12-02 13:16:57,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:16:57,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645593082] [2024-12-02 13:16:57,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645593082] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:16:57,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868618928] [2024-12-02 13:16:57,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:16:57,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:16:57,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:16:57,674 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:16:57,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb42d6fa-94e5-48f5-b28e-4f447e408af3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 13:16:58,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:16:58,139 INFO L256 TraceCheckSpWp]: Trace formula consists of 1849 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 13:16:58,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:16:59,847 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 17403 proven. 234 refuted. 0 times theorem prover too weak. 18007 trivial. 0 not checked. [2024-12-02 13:16:59,847 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:17:03,847 INFO L134 CoverageAnalysis]: Checked inductivity of 35644 backedges. 165 proven. 234 refuted. 0 times theorem prover too weak. 35245 trivial. 0 not checked. [2024-12-02 13:17:03,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868618928] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:17:03,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:17:03,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 20 [2024-12-02 13:17:03,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628104203] [2024-12-02 13:17:03,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:17:03,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 13:17:03,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:17:03,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 13:17:03,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2024-12-02 13:17:03,850 INFO L87 Difference]: Start difference. First operand 228473 states and 381744 transitions. Second operand has 20 states, 20 states have (on average 15.65) internal successors, (313), 20 states have internal predecessors, (313), 4 states have call successors, (402), 3 states have call predecessors, (402), 6 states have return successors, (402), 4 states have call predecessors, (402), 4 states have call successors, (402) [2024-12-02 13:24:23,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:24:23,391 INFO L93 Difference]: Finished difference Result 4078481 states and 6765412 transitions. [2024-12-02 13:24:23,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2024-12-02 13:24:23,392 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 15.65) internal successors, (313), 20 states have internal predecessors, (313), 4 states have call successors, (402), 3 states have call predecessors, (402), 6 states have return successors, (402), 4 states have call predecessors, (402), 4 states have call successors, (402) Word has length 836 [2024-12-02 13:24:23,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted.