./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.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_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/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_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/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_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/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 48c0e642396cb981ec97788bf4c6fd139bd12f99e5b4ac8264222e0d2b78e970 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 09:03:45,817 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 09:03:45,871 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 09:03:45,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 09:03:45,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 09:03:45,895 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 09:03:45,896 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 09:03:45,896 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 09:03:45,897 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 09:03:45,897 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 09:03:45,897 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 09:03:45,897 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 09:03:45,897 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 09:03:45,897 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 09:03:45,897 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 09:03:45,897 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 09:03:45,898 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 09:03:45,898 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 09:03:45,898 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 09:03:45,898 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 09:03:45,898 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 09:03:45,898 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 09:03:45,898 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 09:03:45,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 09:03:45,898 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 09:03:45,898 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 09:03:45,898 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 09:03:45,898 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 09:03:45,898 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 09:03:45,899 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 09:03:45,899 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 09:03:45,899 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 09:03:45,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:03:45,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 09:03:45,899 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 09:03:45,899 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 09:03:45,899 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 09:03:45,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:03:45,899 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 09:03:45,899 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 09:03:45,899 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 09:03:45,899 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 09:03:45,899 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 09:03:45,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 09:03:45,900 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 09:03:45,900 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 09:03:45,900 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 09:03:45,900 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 09:03:45,900 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_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/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 -> 48c0e642396cb981ec97788bf4c6fd139bd12f99e5b4ac8264222e0d2b78e970 [2024-12-02 09:03:46,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 09:03:46,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 09:03:46,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 09:03:46,130 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 09:03:46,131 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 09:03:46,132 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i [2024-12-02 09:03:48,773 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/data/b9cfc5754/d81be74aa2fd48e69ce03c5825383343/FLAG49aa12b27 [2024-12-02 09:03:48,989 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 09:03:48,990 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i [2024-12-02 09:03:48,997 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/data/b9cfc5754/d81be74aa2fd48e69ce03c5825383343/FLAG49aa12b27 [2024-12-02 09:03:49,010 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/data/b9cfc5754/d81be74aa2fd48e69ce03c5825383343 [2024-12-02 09:03:49,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 09:03:49,013 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 09:03:49,013 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 09:03:49,014 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 09:03:49,017 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 09:03:49,017 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:03:49" (1/1) ... [2024-12-02 09:03:49,018 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40132b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:49, skipping insertion in model container [2024-12-02 09:03:49,018 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:03:49" (1/1) ... [2024-12-02 09:03:49,034 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 09:03:49,137 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i[919,932] [2024-12-02 09:03:49,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:03:49,205 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 09:03:49,215 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_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i[919,932] [2024-12-02 09:03:49,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:03:49,258 INFO L204 MainTranslator]: Completed translation [2024-12-02 09:03:49,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:49 WrapperNode [2024-12-02 09:03:49,258 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 09:03:49,259 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 09:03:49,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 09:03:49,260 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 09:03:49,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:49" (1/1) ... [2024-12-02 09:03:49,275 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:49" (1/1) ... [2024-12-02 09:03:49,303 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 179 [2024-12-02 09:03:49,303 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 09:03:49,304 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 09:03:49,304 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 09:03:49,304 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 09:03:49,312 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:49" (1/1) ... [2024-12-02 09:03:49,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:49" (1/1) ... [2024-12-02 09:03:49,315 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:49" (1/1) ... [2024-12-02 09:03:49,329 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 09:03:49,329 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:49" (1/1) ... [2024-12-02 09:03:49,329 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:49" (1/1) ... [2024-12-02 09:03:49,337 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:49" (1/1) ... [2024-12-02 09:03:49,338 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:49" (1/1) ... [2024-12-02 09:03:49,342 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:49" (1/1) ... [2024-12-02 09:03:49,344 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:49" (1/1) ... [2024-12-02 09:03:49,346 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:49" (1/1) ... [2024-12-02 09:03:49,349 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 09:03:49,350 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 09:03:49,350 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 09:03:49,350 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 09:03:49,351 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:49" (1/1) ... [2024-12-02 09:03:49,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:03:49,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:03:49,380 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 09:03:49,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 09:03:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 09:03:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 09:03:49,406 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 09:03:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 09:03:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 09:03:49,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 09:03:49,475 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 09:03:49,477 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 09:03:49,788 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-12-02 09:03:49,788 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 09:03:49,797 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 09:03:49,798 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 09:03:49,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:03:49 BoogieIcfgContainer [2024-12-02 09:03:49,798 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 09:03:49,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 09:03:49,800 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 09:03:49,803 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 09:03:49,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:03:49" (1/3) ... [2024-12-02 09:03:49,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7593d9fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:03:49, skipping insertion in model container [2024-12-02 09:03:49,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:49" (2/3) ... [2024-12-02 09:03:49,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7593d9fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:03:49, skipping insertion in model container [2024-12-02 09:03:49,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:03:49" (3/3) ... [2024-12-02 09:03:49,806 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i [2024-12-02 09:03:49,816 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 09:03:49,818 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i that has 2 procedures, 82 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 09:03:49,862 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 09:03:49,871 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;@3b7a5b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 09:03:49,872 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 09:03:49,874 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 57 states have (on average 1.4912280701754386) internal successors, (85), 58 states have internal predecessors, (85), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 09:03:49,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 09:03:49,884 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:49,885 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:49,885 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:49,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:49,889 INFO L85 PathProgramCache]: Analyzing trace with hash 851425572, now seen corresponding path program 1 times [2024-12-02 09:03:49,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:49,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815314741] [2024-12-02 09:03:49,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:49,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:50,152 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2024-12-02 09:03:50,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:50,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815314741] [2024-12-02 09:03:50,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815314741] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:03:50,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897077511] [2024-12-02 09:03:50,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:50,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:03:50,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:03:50,156 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:03:50,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 09:03:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:50,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 09:03:50,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:03:50,330 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2024-12-02 09:03:50,330 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:03:50,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897077511] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:50,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:03:50,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 09:03:50,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281091494] [2024-12-02 09:03:50,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:50,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 09:03:50,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:50,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 09:03:50,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 09:03:50,354 INFO L87 Difference]: Start difference. First operand has 82 states, 57 states have (on average 1.4912280701754386) internal successors, (85), 58 states have internal predecessors, (85), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:03:50,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:50,376 INFO L93 Difference]: Finished difference Result 157 states and 274 transitions. [2024-12-02 09:03:50,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 09:03:50,377 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) Word has length 150 [2024-12-02 09:03:50,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:50,382 INFO L225 Difference]: With dead ends: 157 [2024-12-02 09:03:50,383 INFO L226 Difference]: Without dead ends: 78 [2024-12-02 09:03:50,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 151 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 09:03:50,389 INFO L435 NwaCegarLoop]: 122 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, 122 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 09:03:50,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:03:50,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-12-02 09:03:50,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-12-02 09:03:50,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 54 states have (on average 1.4444444444444444) internal successors, (78), 54 states have internal predecessors, (78), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 09:03:50,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 122 transitions. [2024-12-02 09:03:50,420 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 122 transitions. Word has length 150 [2024-12-02 09:03:50,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:50,420 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 122 transitions. [2024-12-02 09:03:50,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:03:50,421 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 122 transitions. [2024-12-02 09:03:50,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 09:03:50,423 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:50,423 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:50,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 09:03:50,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 09:03:50,623 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:50,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:50,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1371466408, now seen corresponding path program 1 times [2024-12-02 09:03:50,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:50,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038992655] [2024-12-02 09:03:50,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:50,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:50,930 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:03:50,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:50,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038992655] [2024-12-02 09:03:50,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038992655] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:50,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:50,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:03:50,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724411458] [2024-12-02 09:03:50,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:50,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:03:50,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:50,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:03:50,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:03:50,933 INFO L87 Difference]: Start difference. First operand 78 states and 122 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:03:51,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:51,121 INFO L93 Difference]: Finished difference Result 207 states and 325 transitions. [2024-12-02 09:03:51,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:03:51,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 150 [2024-12-02 09:03:51,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:51,124 INFO L225 Difference]: With dead ends: 207 [2024-12-02 09:03:51,124 INFO L226 Difference]: Without dead ends: 132 [2024-12-02 09:03:51,125 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 09:03:51,125 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 207 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:51,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 214 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:03:51,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-12-02 09:03:51,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129. [2024-12-02 09:03:51,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 94 states have (on average 1.4680851063829787) internal successors, (138), 95 states have internal predecessors, (138), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-12-02 09:03:51,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 202 transitions. [2024-12-02 09:03:51,146 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 202 transitions. Word has length 150 [2024-12-02 09:03:51,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:51,146 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 202 transitions. [2024-12-02 09:03:51,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:03:51,147 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 202 transitions. [2024-12-02 09:03:51,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 09:03:51,149 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:51,149 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:51,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 09:03:51,149 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:51,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:51,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1794168234, now seen corresponding path program 1 times [2024-12-02 09:03:51,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:51,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943156707] [2024-12-02 09:03:51,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:51,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:51,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:51,602 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:03:51,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:51,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943156707] [2024-12-02 09:03:51,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943156707] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:51,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:51,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:03:51,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562096347] [2024-12-02 09:03:51,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:51,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:03:51,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:51,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:03:51,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:03:51,605 INFO L87 Difference]: Start difference. First operand 129 states and 202 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:03:51,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:51,778 INFO L93 Difference]: Finished difference Result 371 states and 593 transitions. [2024-12-02 09:03:51,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:03:51,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 150 [2024-12-02 09:03:51,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:51,782 INFO L225 Difference]: With dead ends: 371 [2024-12-02 09:03:51,783 INFO L226 Difference]: Without dead ends: 245 [2024-12-02 09:03:51,783 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 09:03:51,784 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 111 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:51,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 287 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:03:51,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-12-02 09:03:51,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 179. [2024-12-02 09:03:51,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 121 states have (on average 1.4049586776859504) internal successors, (170), 122 states have internal predecessors, (170), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 09:03:51,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 278 transitions. [2024-12-02 09:03:51,814 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 278 transitions. Word has length 150 [2024-12-02 09:03:51,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:51,814 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 278 transitions. [2024-12-02 09:03:51,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:03:51,815 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 278 transitions. [2024-12-02 09:03:51,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 09:03:51,816 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:51,817 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:51,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 09:03:51,817 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:51,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:51,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1214684569, now seen corresponding path program 1 times [2024-12-02 09:03:51,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:51,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171387163] [2024-12-02 09:03:51,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:51,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:57,727 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:03:57,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:57,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171387163] [2024-12-02 09:03:57,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171387163] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:03:57,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:03:57,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 09:03:57,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624935542] [2024-12-02 09:03:57,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:03:57,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 09:03:57,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:57,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 09:03:57,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2024-12-02 09:03:57,730 INFO L87 Difference]: Start difference. First operand 179 states and 278 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:03:59,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:03:59,528 INFO L93 Difference]: Finished difference Result 497 states and 737 transitions. [2024-12-02 09:03:59,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 09:03:59,529 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 151 [2024-12-02 09:03:59,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:03:59,532 INFO L225 Difference]: With dead ends: 497 [2024-12-02 09:03:59,532 INFO L226 Difference]: Without dead ends: 371 [2024-12-02 09:03:59,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=187, Invalid=365, Unknown=0, NotChecked=0, Total=552 [2024-12-02 09:03:59,534 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 418 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 09:03:59,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 748 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 09:03:59,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-12-02 09:03:59,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 269. [2024-12-02 09:03:59,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 201 states have (on average 1.427860696517413) internal successors, (287), 204 states have internal predecessors, (287), 60 states have call successors, (60), 7 states have call predecessors, (60), 7 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 09:03:59,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 407 transitions. [2024-12-02 09:03:59,567 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 407 transitions. Word has length 151 [2024-12-02 09:03:59,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:59,567 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 407 transitions. [2024-12-02 09:03:59,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:03:59,568 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 407 transitions. [2024-12-02 09:03:59,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 09:03:59,570 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:59,570 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:59,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 09:03:59,570 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:59,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:59,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1212837527, now seen corresponding path program 1 times [2024-12-02 09:03:59,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:59,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190372986] [2024-12-02 09:03:59,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:59,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:03,149 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:04:03,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:03,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190372986] [2024-12-02 09:04:03,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190372986] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:03,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:03,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 09:04:03,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634698246] [2024-12-02 09:04:03,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:03,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 09:04:03,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:03,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 09:04:03,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-12-02 09:04:03,151 INFO L87 Difference]: Start difference. First operand 269 states and 407 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:04:04,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:04,907 INFO L93 Difference]: Finished difference Result 378 states and 538 transitions. [2024-12-02 09:04:04,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 09:04:04,907 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 151 [2024-12-02 09:04:04,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:04,910 INFO L225 Difference]: With dead ends: 378 [2024-12-02 09:04:04,910 INFO L226 Difference]: Without dead ends: 376 [2024-12-02 09:04:04,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=246, Invalid=566, Unknown=0, NotChecked=0, Total=812 [2024-12-02 09:04:04,911 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 425 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:04,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 762 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 09:04:04,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-12-02 09:04:04,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 276. [2024-12-02 09:04:04,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 205 states have (on average 1.4195121951219511) internal successors, (291), 208 states have internal predecessors, (291), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 09:04:04,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 415 transitions. [2024-12-02 09:04:04,934 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 415 transitions. Word has length 151 [2024-12-02 09:04:04,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:04,934 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 415 transitions. [2024-12-02 09:04:04,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:04:04,934 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 415 transitions. [2024-12-02 09:04:04,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 09:04:04,936 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:04,936 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:04,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 09:04:04,936 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:04,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:04,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1894742939, now seen corresponding path program 1 times [2024-12-02 09:04:04,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:04,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646058650] [2024-12-02 09:04:04,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:04,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:10,639 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:04:10,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:10,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646058650] [2024-12-02 09:04:10,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646058650] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:10,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:10,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 09:04:10,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277563655] [2024-12-02 09:04:10,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:10,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 09:04:10,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:10,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 09:04:10,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2024-12-02 09:04:10,641 INFO L87 Difference]: Start difference. First operand 276 states and 415 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:04:11,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:11,834 INFO L93 Difference]: Finished difference Result 384 states and 545 transitions. [2024-12-02 09:04:11,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 09:04:11,835 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 151 [2024-12-02 09:04:11,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:11,837 INFO L225 Difference]: With dead ends: 384 [2024-12-02 09:04:11,837 INFO L226 Difference]: Without dead ends: 382 [2024-12-02 09:04:11,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=187, Invalid=365, Unknown=0, NotChecked=0, Total=552 [2024-12-02 09:04:11,839 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 431 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:11,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 659 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 09:04:11,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-12-02 09:04:11,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 280. [2024-12-02 09:04:11,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 209 states have (on average 1.4210526315789473) internal successors, (297), 212 states have internal predecessors, (297), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 09:04:11,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 421 transitions. [2024-12-02 09:04:11,863 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 421 transitions. Word has length 151 [2024-12-02 09:04:11,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:11,863 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 421 transitions. [2024-12-02 09:04:11,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:04:11,864 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 421 transitions. [2024-12-02 09:04:11,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 09:04:11,865 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:11,865 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:11,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 09:04:11,866 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:11,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:11,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1892895897, now seen corresponding path program 1 times [2024-12-02 09:04:11,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:11,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614169217] [2024-12-02 09:04:11,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:11,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:37,349 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:04:37,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:37,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614169217] [2024-12-02 09:04:37,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614169217] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:37,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:37,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 09:04:37,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026656232] [2024-12-02 09:04:37,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:37,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 09:04:37,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:37,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 09:04:37,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-12-02 09:04:37,351 INFO L87 Difference]: Start difference. First operand 280 states and 421 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:04:39,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:39,399 INFO L93 Difference]: Finished difference Result 379 states and 540 transitions. [2024-12-02 09:04:39,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 09:04:39,399 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 151 [2024-12-02 09:04:39,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:39,401 INFO L225 Difference]: With dead ends: 379 [2024-12-02 09:04:39,401 INFO L226 Difference]: Without dead ends: 377 [2024-12-02 09:04:39,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=236, Invalid=576, Unknown=0, NotChecked=0, Total=812 [2024-12-02 09:04:39,402 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 481 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:39,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 643 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 09:04:39,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-12-02 09:04:39,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 281. [2024-12-02 09:04:39,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 210 states have (on average 1.4190476190476191) internal successors, (298), 213 states have internal predecessors, (298), 62 states have call successors, (62), 8 states have call predecessors, (62), 8 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 09:04:39,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 422 transitions. [2024-12-02 09:04:39,416 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 422 transitions. Word has length 151 [2024-12-02 09:04:39,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:39,417 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 422 transitions. [2024-12-02 09:04:39,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:04:39,417 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 422 transitions. [2024-12-02 09:04:39,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 09:04:39,418 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:39,418 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:39,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 09:04:39,418 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:39,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:39,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1472850007, now seen corresponding path program 1 times [2024-12-02 09:04:39,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:39,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384056850] [2024-12-02 09:04:39,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:39,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:39,473 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:04:39,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:39,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384056850] [2024-12-02 09:04:39,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384056850] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:39,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:39,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:04:39,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022506952] [2024-12-02 09:04:39,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:39,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:04:39,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:39,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:04:39,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:04:39,474 INFO L87 Difference]: Start difference. First operand 281 states and 422 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:04:39,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:39,524 INFO L93 Difference]: Finished difference Result 692 states and 1051 transitions. [2024-12-02 09:04:39,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:04:39,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 151 [2024-12-02 09:04:39,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:39,527 INFO L225 Difference]: With dead ends: 692 [2024-12-02 09:04:39,527 INFO L226 Difference]: Without dead ends: 472 [2024-12-02 09:04:39,528 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 09:04:39,529 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 105 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:39,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 324 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:04:39,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-12-02 09:04:39,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 470. [2024-12-02 09:04:39,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 354 states have (on average 1.3728813559322033) internal successors, (486), 360 states have internal predecessors, (486), 102 states have call successors, (102), 13 states have call predecessors, (102), 13 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-12-02 09:04:39,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 690 transitions. [2024-12-02 09:04:39,560 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 690 transitions. Word has length 151 [2024-12-02 09:04:39,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:39,560 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 690 transitions. [2024-12-02 09:04:39,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:04:39,560 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 690 transitions. [2024-12-02 09:04:39,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 09:04:39,561 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:39,561 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:39,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 09:04:39,562 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:39,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:39,562 INFO L85 PathProgramCache]: Analyzing trace with hash 663503381, now seen corresponding path program 1 times [2024-12-02 09:04:39,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:39,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689019896] [2024-12-02 09:04:39,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:39,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:39,632 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:04:39,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:39,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689019896] [2024-12-02 09:04:39,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689019896] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:39,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:39,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 09:04:39,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961798089] [2024-12-02 09:04:39,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:39,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:04:39,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:39,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:04:39,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:04:39,634 INFO L87 Difference]: Start difference. First operand 470 states and 690 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:04:39,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:39,830 INFO L93 Difference]: Finished difference Result 1207 states and 1760 transitions. [2024-12-02 09:04:39,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:04:39,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 151 [2024-12-02 09:04:39,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:39,835 INFO L225 Difference]: With dead ends: 1207 [2024-12-02 09:04:39,835 INFO L226 Difference]: Without dead ends: 798 [2024-12-02 09:04:39,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:04:39,837 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 91 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:39,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 382 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:04:39,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-12-02 09:04:39,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 756. [2024-12-02 09:04:39,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 585 states have (on average 1.3726495726495727) internal successors, (803), 596 states have internal predecessors, (803), 150 states have call successors, (150), 20 states have call predecessors, (150), 20 states have return successors, (150), 139 states have call predecessors, (150), 150 states have call successors, (150) [2024-12-02 09:04:39,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1103 transitions. [2024-12-02 09:04:39,881 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1103 transitions. Word has length 151 [2024-12-02 09:04:39,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:39,881 INFO L471 AbstractCegarLoop]: Abstraction has 756 states and 1103 transitions. [2024-12-02 09:04:39,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:04:39,881 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1103 transitions. [2024-12-02 09:04:39,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 09:04:39,882 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:39,883 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:39,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 09:04:39,883 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:39,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:39,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1343561751, now seen corresponding path program 1 times [2024-12-02 09:04:39,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:39,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582262696] [2024-12-02 09:04:39,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:39,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:39,990 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:04:39,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:39,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582262696] [2024-12-02 09:04:39,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582262696] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:39,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:39,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 09:04:39,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871681770] [2024-12-02 09:04:39,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:39,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:04:39,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:39,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:04:39,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:04:39,992 INFO L87 Difference]: Start difference. First operand 756 states and 1103 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:04:40,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:40,439 INFO L93 Difference]: Finished difference Result 1709 states and 2467 transitions. [2024-12-02 09:04:40,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 09:04:40,439 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 151 [2024-12-02 09:04:40,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:40,445 INFO L225 Difference]: With dead ends: 1709 [2024-12-02 09:04:40,445 INFO L226 Difference]: Without dead ends: 1056 [2024-12-02 09:04:40,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-12-02 09:04:40,447 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 289 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:40,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 468 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 09:04:40,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2024-12-02 09:04:40,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1031. [2024-12-02 09:04:40,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 803 states have (on average 1.3673723536737235) internal successors, (1098), 819 states have internal predecessors, (1098), 198 states have call successors, (198), 29 states have call predecessors, (198), 29 states have return successors, (198), 182 states have call predecessors, (198), 198 states have call successors, (198) [2024-12-02 09:04:40,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1494 transitions. [2024-12-02 09:04:40,556 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1494 transitions. Word has length 151 [2024-12-02 09:04:40,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:40,556 INFO L471 AbstractCegarLoop]: Abstraction has 1031 states and 1494 transitions. [2024-12-02 09:04:40,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:04:40,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1494 transitions. [2024-12-02 09:04:40,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 09:04:40,558 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:40,558 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:40,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 09:04:40,559 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:40,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:40,559 INFO L85 PathProgramCache]: Analyzing trace with hash 627878555, now seen corresponding path program 1 times [2024-12-02 09:04:40,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:40,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809164918] [2024-12-02 09:04:40,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:40,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:40,787 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:04:40,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:40,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809164918] [2024-12-02 09:04:40,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809164918] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:40,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:40,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 09:04:40,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684265553] [2024-12-02 09:04:40,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:40,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:04:40,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:40,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:04:40,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:04:40,789 INFO L87 Difference]: Start difference. First operand 1031 states and 1494 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:04:41,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:41,385 INFO L93 Difference]: Finished difference Result 2560 states and 3632 transitions. [2024-12-02 09:04:41,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 09:04:41,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 151 [2024-12-02 09:04:41,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:41,393 INFO L225 Difference]: With dead ends: 2560 [2024-12-02 09:04:41,393 INFO L226 Difference]: Without dead ends: 1632 [2024-12-02 09:04:41,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-12-02 09:04:41,396 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 360 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:41,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 285 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 09:04:41,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2024-12-02 09:04:41,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1325. [2024-12-02 09:04:41,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 1031 states have (on average 1.3433559650824443) internal successors, (1385), 1057 states have internal predecessors, (1385), 254 states have call successors, (254), 39 states have call predecessors, (254), 39 states have return successors, (254), 228 states have call predecessors, (254), 254 states have call successors, (254) [2024-12-02 09:04:41,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1893 transitions. [2024-12-02 09:04:41,526 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1893 transitions. Word has length 151 [2024-12-02 09:04:41,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:41,526 INFO L471 AbstractCegarLoop]: Abstraction has 1325 states and 1893 transitions. [2024-12-02 09:04:41,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:04:41,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1893 transitions. [2024-12-02 09:04:41,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 09:04:41,528 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:41,528 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:41,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 09:04:41,528 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:41,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:41,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1920420495, now seen corresponding path program 1 times [2024-12-02 09:04:41,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:41,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834915575] [2024-12-02 09:04:41,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:41,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:41,593 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:04:41,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:41,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834915575] [2024-12-02 09:04:41,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834915575] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:41,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:41,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 09:04:41,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787886367] [2024-12-02 09:04:41,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:41,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:04:41,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:41,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:04:41,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 09:04:41,594 INFO L87 Difference]: Start difference. First operand 1325 states and 1893 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:04:41,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:41,744 INFO L93 Difference]: Finished difference Result 2949 states and 4212 transitions. [2024-12-02 09:04:41,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:04:41,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 152 [2024-12-02 09:04:41,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:41,754 INFO L225 Difference]: With dead ends: 2949 [2024-12-02 09:04:41,754 INFO L226 Difference]: Without dead ends: 1716 [2024-12-02 09:04:41,758 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 09:04:41,758 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 78 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:41,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 257 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:04:41,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2024-12-02 09:04:41,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1355. [2024-12-02 09:04:41,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1355 states, 1060 states have (on average 1.3528301886792453) internal successors, (1434), 1086 states have internal predecessors, (1434), 254 states have call successors, (254), 40 states have call predecessors, (254), 40 states have return successors, (254), 228 states have call predecessors, (254), 254 states have call successors, (254) [2024-12-02 09:04:41,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 1942 transitions. [2024-12-02 09:04:41,903 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 1942 transitions. Word has length 152 [2024-12-02 09:04:41,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:41,903 INFO L471 AbstractCegarLoop]: Abstraction has 1355 states and 1942 transitions. [2024-12-02 09:04:41,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:04:41,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 1942 transitions. [2024-12-02 09:04:41,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 09:04:41,905 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:41,905 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:41,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 09:04:41,905 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:41,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:41,906 INFO L85 PathProgramCache]: Analyzing trace with hash 231476753, now seen corresponding path program 1 times [2024-12-02 09:04:41,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:41,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122037743] [2024-12-02 09:04:41,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:41,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:42,110 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:04:42,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:42,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122037743] [2024-12-02 09:04:42,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122037743] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:42,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:42,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:04:42,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494892453] [2024-12-02 09:04:42,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:42,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:04:42,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:42,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:04:42,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:04:42,112 INFO L87 Difference]: Start difference. First operand 1355 states and 1942 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:04:42,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:42,358 INFO L93 Difference]: Finished difference Result 3207 states and 4614 transitions. [2024-12-02 09:04:42,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:04:42,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 152 [2024-12-02 09:04:42,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:42,366 INFO L225 Difference]: With dead ends: 3207 [2024-12-02 09:04:42,366 INFO L226 Difference]: Without dead ends: 2345 [2024-12-02 09:04:42,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 09:04:42,369 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 162 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:42,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 360 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:04:42,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2024-12-02 09:04:42,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 2073. [2024-12-02 09:04:42,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 1620 states have (on average 1.3506172839506172) internal successors, (2188), 1664 states have internal predecessors, (2188), 394 states have call successors, (394), 58 states have call predecessors, (394), 58 states have return successors, (394), 350 states have call predecessors, (394), 394 states have call successors, (394) [2024-12-02 09:04:42,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 2976 transitions. [2024-12-02 09:04:42,488 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 2976 transitions. Word has length 152 [2024-12-02 09:04:42,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:42,488 INFO L471 AbstractCegarLoop]: Abstraction has 2073 states and 2976 transitions. [2024-12-02 09:04:42,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:04:42,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 2976 transitions. [2024-12-02 09:04:42,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 09:04:42,490 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:42,490 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:42,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 09:04:42,490 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:42,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:42,491 INFO L85 PathProgramCache]: Analyzing trace with hash 360353935, now seen corresponding path program 1 times [2024-12-02 09:04:42,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:42,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755460397] [2024-12-02 09:04:42,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:42,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:45,475 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:04:45,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:45,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755460397] [2024-12-02 09:04:45,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755460397] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:45,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:45,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 09:04:45,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827604074] [2024-12-02 09:04:45,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:45,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 09:04:45,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:45,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 09:04:45,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-12-02 09:04:45,477 INFO L87 Difference]: Start difference. First operand 2073 states and 2976 transitions. Second operand has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:04:48,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:48,419 INFO L93 Difference]: Finished difference Result 2471 states and 3475 transitions. [2024-12-02 09:04:48,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 09:04:48,420 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 152 [2024-12-02 09:04:48,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:48,426 INFO L225 Difference]: With dead ends: 2471 [2024-12-02 09:04:48,426 INFO L226 Difference]: Without dead ends: 2469 [2024-12-02 09:04:48,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=229, Invalid=527, Unknown=0, NotChecked=0, Total=756 [2024-12-02 09:04:48,428 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 331 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:48,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 842 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 09:04:48,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2024-12-02 09:04:48,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 2208. [2024-12-02 09:04:48,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 1742 states have (on average 1.3484500574052813) internal successors, (2349), 1790 states have internal predecessors, (2349), 402 states have call successors, (402), 63 states have call predecessors, (402), 63 states have return successors, (402), 354 states have call predecessors, (402), 402 states have call successors, (402) [2024-12-02 09:04:48,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 3153 transitions. [2024-12-02 09:04:48,638 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 3153 transitions. Word has length 152 [2024-12-02 09:04:48,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:48,638 INFO L471 AbstractCegarLoop]: Abstraction has 2208 states and 3153 transitions. [2024-12-02 09:04:48,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:04:48,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 3153 transitions. [2024-12-02 09:04:48,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 09:04:48,640 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:48,640 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:48,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 09:04:48,641 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:48,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:48,641 INFO L85 PathProgramCache]: Analyzing trace with hash 358506893, now seen corresponding path program 1 times [2024-12-02 09:04:48,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:48,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400462758] [2024-12-02 09:04:48,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:48,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:51,600 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:04:51,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:51,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400462758] [2024-12-02 09:04:51,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400462758] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:51,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:51,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 09:04:51,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357453365] [2024-12-02 09:04:51,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:51,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 09:04:51,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:51,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 09:04:51,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2024-12-02 09:04:51,602 INFO L87 Difference]: Start difference. First operand 2208 states and 3153 transitions. Second operand has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:04:53,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:53,616 INFO L93 Difference]: Finished difference Result 2437 states and 3416 transitions. [2024-12-02 09:04:53,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 09:04:53,617 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 152 [2024-12-02 09:04:53,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:53,627 INFO L225 Difference]: With dead ends: 2437 [2024-12-02 09:04:53,627 INFO L226 Difference]: Without dead ends: 2435 [2024-12-02 09:04:53,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=229, Invalid=421, Unknown=0, NotChecked=0, Total=650 [2024-12-02 09:04:53,628 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 309 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:53,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 773 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 09:04:53,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2435 states. [2024-12-02 09:04:53,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2435 to 2221. [2024-12-02 09:04:53,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2221 states, 1755 states have (on average 1.3492877492877493) internal successors, (2368), 1803 states have internal predecessors, (2368), 402 states have call successors, (402), 63 states have call predecessors, (402), 63 states have return successors, (402), 354 states have call predecessors, (402), 402 states have call successors, (402) [2024-12-02 09:04:53,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 3172 transitions. [2024-12-02 09:04:53,780 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 3172 transitions. Word has length 152 [2024-12-02 09:04:53,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:53,781 INFO L471 AbstractCegarLoop]: Abstraction has 2221 states and 3172 transitions. [2024-12-02 09:04:53,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:04:53,781 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 3172 transitions. [2024-12-02 09:04:53,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 09:04:53,782 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:53,783 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:53,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 09:04:53,783 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:53,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:53,783 INFO L85 PathProgramCache]: Analyzing trace with hash -2026814901, now seen corresponding path program 1 times [2024-12-02 09:04:53,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:53,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616946306] [2024-12-02 09:04:53,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:53,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:04:56,273 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:04:56,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:04:56,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616946306] [2024-12-02 09:04:56,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616946306] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:04:56,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:04:56,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 09:04:56,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098583272] [2024-12-02 09:04:56,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:04:56,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 09:04:56,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:04:56,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 09:04:56,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-12-02 09:04:56,274 INFO L87 Difference]: Start difference. First operand 2221 states and 3172 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:04:58,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:04:58,992 INFO L93 Difference]: Finished difference Result 2750 states and 3782 transitions. [2024-12-02 09:04:58,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 09:04:58,992 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 152 [2024-12-02 09:04:58,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:04:58,999 INFO L225 Difference]: With dead ends: 2750 [2024-12-02 09:04:58,999 INFO L226 Difference]: Without dead ends: 2748 [2024-12-02 09:04:59,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2024-12-02 09:04:59,000 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 348 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:04:59,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 772 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 09:04:59,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2024-12-02 09:04:59,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 2255. [2024-12-02 09:04:59,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 1793 states have (on average 1.3463469046291132) internal successors, (2414), 1841 states have internal predecessors, (2414), 390 states have call successors, (390), 71 states have call predecessors, (390), 71 states have return successors, (390), 342 states have call predecessors, (390), 390 states have call successors, (390) [2024-12-02 09:04:59,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3194 transitions. [2024-12-02 09:04:59,144 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3194 transitions. Word has length 152 [2024-12-02 09:04:59,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:04:59,144 INFO L471 AbstractCegarLoop]: Abstraction has 2255 states and 3194 transitions. [2024-12-02 09:04:59,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:04:59,145 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3194 transitions. [2024-12-02 09:04:59,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 09:04:59,146 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:04:59,147 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:59,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 09:04:59,147 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:04:59,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:04:59,147 INFO L85 PathProgramCache]: Analyzing trace with hash -2028661943, now seen corresponding path program 1 times [2024-12-02 09:04:59,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:04:59,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972874257] [2024-12-02 09:04:59,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:04:59,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:04:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:05:20,805 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:05:20,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:05:20,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972874257] [2024-12-02 09:05:20,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972874257] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:05:20,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:05:20,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 09:05:20,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258005407] [2024-12-02 09:05:20,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:05:20,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 09:05:20,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:05:20,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 09:05:20,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-12-02 09:05:20,806 INFO L87 Difference]: Start difference. First operand 2255 states and 3194 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:05:25,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:05:25,147 INFO L93 Difference]: Finished difference Result 2810 states and 3860 transitions. [2024-12-02 09:05:25,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 09:05:25,147 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 152 [2024-12-02 09:05:25,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:05:25,154 INFO L225 Difference]: With dead ends: 2810 [2024-12-02 09:05:25,154 INFO L226 Difference]: Without dead ends: 2808 [2024-12-02 09:05:25,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2024-12-02 09:05:25,156 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 237 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:05:25,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 678 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 09:05:25,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2808 states. [2024-12-02 09:05:25,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2808 to 2254. [2024-12-02 09:05:25,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2254 states, 1792 states have (on average 1.3459821428571428) internal successors, (2412), 1840 states have internal predecessors, (2412), 390 states have call successors, (390), 71 states have call predecessors, (390), 71 states have return successors, (390), 342 states have call predecessors, (390), 390 states have call successors, (390) [2024-12-02 09:05:25,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2254 states to 2254 states and 3192 transitions. [2024-12-02 09:05:25,409 INFO L78 Accepts]: Start accepts. Automaton has 2254 states and 3192 transitions. Word has length 152 [2024-12-02 09:05:25,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:05:25,409 INFO L471 AbstractCegarLoop]: Abstraction has 2254 states and 3192 transitions. [2024-12-02 09:05:25,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:05:25,409 INFO L276 IsEmpty]: Start isEmpty. Operand 2254 states and 3192 transitions. [2024-12-02 09:05:25,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 09:05:25,411 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:05:25,411 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:05:25,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 09:05:25,411 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:05:25,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:05:25,412 INFO L85 PathProgramCache]: Analyzing trace with hash 97463247, now seen corresponding path program 1 times [2024-12-02 09:05:25,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:05:25,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687669587] [2024-12-02 09:05:25,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:05:25,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:05:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:05:57,615 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:05:57,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:05:57,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687669587] [2024-12-02 09:05:57,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687669587] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:05:57,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:05:57,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 09:05:57,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398768882] [2024-12-02 09:05:57,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:05:57,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 09:05:57,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:05:57,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 09:05:57,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2024-12-02 09:05:57,616 INFO L87 Difference]: Start difference. First operand 2254 states and 3192 transitions. Second operand has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:06:01,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:06:01,475 INFO L93 Difference]: Finished difference Result 4605 states and 6462 transitions. [2024-12-02 09:06:01,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 09:06:01,476 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 152 [2024-12-02 09:06:01,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:06:01,483 INFO L225 Difference]: With dead ends: 4605 [2024-12-02 09:06:01,483 INFO L226 Difference]: Without dead ends: 2529 [2024-12-02 09:06:01,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=298, Invalid=694, Unknown=0, NotChecked=0, Total=992 [2024-12-02 09:06:01,487 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 398 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:06:01,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 1264 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 09:06:01,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2529 states. [2024-12-02 09:06:01,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2529 to 2176. [2024-12-02 09:06:01,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2176 states, 1731 states have (on average 1.34315424610052) internal successors, (2325), 1773 states have internal predecessors, (2325), 366 states have call successors, (366), 78 states have call predecessors, (366), 78 states have return successors, (366), 324 states have call predecessors, (366), 366 states have call successors, (366) [2024-12-02 09:06:01,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2176 states to 2176 states and 3057 transitions. [2024-12-02 09:06:01,652 INFO L78 Accepts]: Start accepts. Automaton has 2176 states and 3057 transitions. Word has length 152 [2024-12-02 09:06:01,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:06:01,660 INFO L471 AbstractCegarLoop]: Abstraction has 2176 states and 3057 transitions. [2024-12-02 09:06:01,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:06:01,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2176 states and 3057 transitions. [2024-12-02 09:06:01,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 09:06:01,662 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:06:01,662 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:01,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 09:06:01,662 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:06:01,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:06:01,669 INFO L85 PathProgramCache]: Analyzing trace with hash 777521617, now seen corresponding path program 1 times [2024-12-02 09:06:01,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:06:01,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354095746] [2024-12-02 09:06:01,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:06:01,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:06:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:06:06,776 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:06:06,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:06:06,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354095746] [2024-12-02 09:06:06,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354095746] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:06:06,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:06:06,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 09:06:06,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911243575] [2024-12-02 09:06:06,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:06:06,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 09:06:06,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:06:06,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 09:06:06,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2024-12-02 09:06:06,778 INFO L87 Difference]: Start difference. First operand 2176 states and 3057 transitions. Second operand has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:06:11,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:06:11,255 INFO L93 Difference]: Finished difference Result 2305 states and 3198 transitions. [2024-12-02 09:06:11,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 09:06:11,256 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 152 [2024-12-02 09:06:11,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:06:11,263 INFO L225 Difference]: With dead ends: 2305 [2024-12-02 09:06:11,263 INFO L226 Difference]: Without dead ends: 2303 [2024-12-02 09:06:11,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=285, Invalid=837, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 09:06:11,265 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 456 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 1692 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-12-02 09:06:11,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 921 Invalid, 1755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1692 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-12-02 09:06:11,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2303 states. [2024-12-02 09:06:11,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2303 to 1610. [2024-12-02 09:06:11,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1305 states have (on average 1.367816091954023) internal successors, (1785), 1328 states have internal predecessors, (1785), 246 states have call successors, (246), 58 states have call predecessors, (246), 58 states have return successors, (246), 223 states have call predecessors, (246), 246 states have call successors, (246) [2024-12-02 09:06:11,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2277 transitions. [2024-12-02 09:06:11,437 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2277 transitions. Word has length 152 [2024-12-02 09:06:11,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:06:11,438 INFO L471 AbstractCegarLoop]: Abstraction has 1610 states and 2277 transitions. [2024-12-02 09:06:11,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:06:11,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2277 transitions. [2024-12-02 09:06:11,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 09:06:11,440 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:06:11,440 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:11,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 09:06:11,441 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:06:11,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:06:11,441 INFO L85 PathProgramCache]: Analyzing trace with hash 775674575, now seen corresponding path program 1 times [2024-12-02 09:06:11,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:06:11,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633731044] [2024-12-02 09:06:11,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:06:11,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:06:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:06:17,232 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:06:17,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:06:17,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633731044] [2024-12-02 09:06:17,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633731044] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:06:17,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:06:17,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 09:06:17,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982115322] [2024-12-02 09:06:17,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:06:17,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 09:06:17,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:06:17,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 09:06:17,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2024-12-02 09:06:17,234 INFO L87 Difference]: Start difference. First operand 1610 states and 2277 transitions. Second operand has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:06:22,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 09:06:23,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:06:23,256 INFO L93 Difference]: Finished difference Result 2276 states and 3160 transitions. [2024-12-02 09:06:23,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 09:06:23,256 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 152 [2024-12-02 09:06:23,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:06:23,265 INFO L225 Difference]: With dead ends: 2276 [2024-12-02 09:06:23,265 INFO L226 Difference]: Without dead ends: 2274 [2024-12-02 09:06:23,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=301, Invalid=821, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 09:06:23,267 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 427 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:06:23,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 888 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 09:06:23,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2024-12-02 09:06:23,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1608. [2024-12-02 09:06:23,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1303 states have (on average 1.3676132003069839) internal successors, (1782), 1326 states have internal predecessors, (1782), 246 states have call successors, (246), 58 states have call predecessors, (246), 58 states have return successors, (246), 223 states have call predecessors, (246), 246 states have call successors, (246) [2024-12-02 09:06:23,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2274 transitions. [2024-12-02 09:06:23,386 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2274 transitions. Word has length 152 [2024-12-02 09:06:23,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:06:23,386 INFO L471 AbstractCegarLoop]: Abstraction has 1608 states and 2274 transitions. [2024-12-02 09:06:23,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 19 states have internal predecessors, (45), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:06:23,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2274 transitions. [2024-12-02 09:06:23,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 09:06:23,388 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:06:23,388 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:23,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 09:06:23,388 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:06:23,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:06:23,388 INFO L85 PathProgramCache]: Analyzing trace with hash 2005261707, now seen corresponding path program 1 times [2024-12-02 09:06:23,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:06:23,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178811779] [2024-12-02 09:06:23,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:06:23,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:06:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:06:26,597 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:06:26,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:06:26,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178811779] [2024-12-02 09:06:26,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178811779] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:06:26,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:06:26,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 09:06:26,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343117021] [2024-12-02 09:06:26,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:06:26,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 09:06:26,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:06:26,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 09:06:26,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-12-02 09:06:26,599 INFO L87 Difference]: Start difference. First operand 1608 states and 2274 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:06:29,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:06:29,665 INFO L93 Difference]: Finished difference Result 3589 states and 5022 transitions. [2024-12-02 09:06:29,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 09:06:29,666 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 152 [2024-12-02 09:06:29,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:06:29,673 INFO L225 Difference]: With dead ends: 3589 [2024-12-02 09:06:29,673 INFO L226 Difference]: Without dead ends: 2150 [2024-12-02 09:06:29,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=146, Invalid=360, Unknown=0, NotChecked=0, Total=506 [2024-12-02 09:06:29,677 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 335 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 09:06:29,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 996 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 09:06:29,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2024-12-02 09:06:29,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 1666. [2024-12-02 09:06:29,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1666 states, 1351 states have (on average 1.3649148778682458) internal successors, (1844), 1376 states have internal predecessors, (1844), 254 states have call successors, (254), 60 states have call predecessors, (254), 60 states have return successors, (254), 229 states have call predecessors, (254), 254 states have call successors, (254) [2024-12-02 09:06:29,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2352 transitions. [2024-12-02 09:06:29,874 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2352 transitions. Word has length 152 [2024-12-02 09:06:29,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:06:29,875 INFO L471 AbstractCegarLoop]: Abstraction has 1666 states and 2352 transitions. [2024-12-02 09:06:29,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:06:29,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2352 transitions. [2024-12-02 09:06:29,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 09:06:29,876 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:06:29,877 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:29,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 09:06:29,877 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:06:29,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:06:29,877 INFO L85 PathProgramCache]: Analyzing trace with hash 2003414665, now seen corresponding path program 1 times [2024-12-02 09:06:29,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:06:29,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57104016] [2024-12-02 09:06:29,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:06:29,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:06:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:06:33,827 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:06:33,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:06:33,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57104016] [2024-12-02 09:06:33,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57104016] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:06:33,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:06:33,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 09:06:33,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700919887] [2024-12-02 09:06:33,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:06:33,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 09:06:33,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:06:33,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 09:06:33,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2024-12-02 09:06:33,828 INFO L87 Difference]: Start difference. First operand 1666 states and 2352 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:06:36,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:06:36,381 INFO L93 Difference]: Finished difference Result 2120 states and 2938 transitions. [2024-12-02 09:06:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 09:06:36,381 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 152 [2024-12-02 09:06:36,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:06:36,389 INFO L225 Difference]: With dead ends: 2120 [2024-12-02 09:06:36,389 INFO L226 Difference]: Without dead ends: 2118 [2024-12-02 09:06:36,390 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2024-12-02 09:06:36,391 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 302 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:06:36,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 988 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 09:06:36,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2024-12-02 09:06:36,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1666. [2024-12-02 09:06:36,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1666 states, 1351 states have (on average 1.3649148778682458) internal successors, (1844), 1376 states have internal predecessors, (1844), 254 states have call successors, (254), 60 states have call predecessors, (254), 60 states have return successors, (254), 229 states have call predecessors, (254), 254 states have call successors, (254) [2024-12-02 09:06:36,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2352 transitions. [2024-12-02 09:06:36,516 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2352 transitions. Word has length 152 [2024-12-02 09:06:36,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:06:36,516 INFO L471 AbstractCegarLoop]: Abstraction has 1666 states and 2352 transitions. [2024-12-02 09:06:36,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:06:36,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2352 transitions. [2024-12-02 09:06:36,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 09:06:36,517 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:06:36,517 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:36,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 09:06:36,517 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:06:36,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:06:36,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1609647219, now seen corresponding path program 1 times [2024-12-02 09:06:36,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:06:36,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111454230] [2024-12-02 09:06:36,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:06:36,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:06:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:06:41,394 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:06:41,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:06:41,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111454230] [2024-12-02 09:06:41,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111454230] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:06:41,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:06:41,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 09:06:41,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438074880] [2024-12-02 09:06:41,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:06:41,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 09:06:41,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:06:41,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 09:06:41,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-12-02 09:06:41,395 INFO L87 Difference]: Start difference. First operand 1666 states and 2352 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:06:45,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:06:45,173 INFO L93 Difference]: Finished difference Result 2127 states and 2947 transitions. [2024-12-02 09:06:45,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 09:06:45,173 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 152 [2024-12-02 09:06:45,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:06:45,178 INFO L225 Difference]: With dead ends: 2127 [2024-12-02 09:06:45,178 INFO L226 Difference]: Without dead ends: 2125 [2024-12-02 09:06:45,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=146, Invalid=360, Unknown=0, NotChecked=0, Total=506 [2024-12-02 09:06:45,179 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 261 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 1580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 09:06:45,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 1185 Invalid, 1580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1563 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 09:06:45,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2125 states. [2024-12-02 09:06:45,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2125 to 1674. [2024-12-02 09:06:45,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1674 states, 1359 states have (on average 1.365710080941869) internal successors, (1856), 1384 states have internal predecessors, (1856), 254 states have call successors, (254), 60 states have call predecessors, (254), 60 states have return successors, (254), 229 states have call predecessors, (254), 254 states have call successors, (254) [2024-12-02 09:06:45,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1674 states to 1674 states and 2364 transitions. [2024-12-02 09:06:45,306 INFO L78 Accepts]: Start accepts. Automaton has 1674 states and 2364 transitions. Word has length 152 [2024-12-02 09:06:45,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:06:45,306 INFO L471 AbstractCegarLoop]: Abstraction has 1674 states and 2364 transitions. [2024-12-02 09:06:45,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:06:45,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1674 states and 2364 transitions. [2024-12-02 09:06:45,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 09:06:45,307 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:06:45,307 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:45,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 09:06:45,307 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:06:45,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:06:45,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1611494261, now seen corresponding path program 1 times [2024-12-02 09:06:45,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:06:45,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825117608] [2024-12-02 09:06:45,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:06:45,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:06:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:06:50,477 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:06:50,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:06:50,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825117608] [2024-12-02 09:06:50,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825117608] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:06:50,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:06:50,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 09:06:50,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830482210] [2024-12-02 09:06:50,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:06:50,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 09:06:50,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:06:50,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 09:06:50,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2024-12-02 09:06:50,478 INFO L87 Difference]: Start difference. First operand 1674 states and 2364 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:06:52,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:06:52,539 INFO L93 Difference]: Finished difference Result 2125 states and 2944 transitions. [2024-12-02 09:06:52,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 09:06:52,540 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 152 [2024-12-02 09:06:52,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:06:52,546 INFO L225 Difference]: With dead ends: 2125 [2024-12-02 09:06:52,546 INFO L226 Difference]: Without dead ends: 2123 [2024-12-02 09:06:52,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2024-12-02 09:06:52,547 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 266 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:06:52,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 942 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 09:06:52,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2123 states. [2024-12-02 09:06:52,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2123 to 1666. [2024-12-02 09:06:52,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1666 states, 1351 states have (on average 1.3649148778682458) internal successors, (1844), 1376 states have internal predecessors, (1844), 254 states have call successors, (254), 60 states have call predecessors, (254), 60 states have return successors, (254), 229 states have call predecessors, (254), 254 states have call successors, (254) [2024-12-02 09:06:52,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2352 transitions. [2024-12-02 09:06:52,764 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2352 transitions. Word has length 152 [2024-12-02 09:06:52,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:06:52,764 INFO L471 AbstractCegarLoop]: Abstraction has 1666 states and 2352 transitions. [2024-12-02 09:06:52,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:06:52,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2352 transitions. [2024-12-02 09:06:52,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 09:06:52,765 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:06:52,765 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:52,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 09:06:52,765 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:06:52,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:06:52,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1933691319, now seen corresponding path program 1 times [2024-12-02 09:06:52,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:06:52,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726690336] [2024-12-02 09:06:52,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:06:52,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:06:52,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:06:52,886 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 24 proven. 39 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2024-12-02 09:06:52,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:06:52,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726690336] [2024-12-02 09:06:52,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726690336] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:06:52,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171216641] [2024-12-02 09:06:52,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:06:52,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:06:52,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:06:52,889 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:06:52,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 09:06:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:06:53,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 09:06:53,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:06:53,192 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 481 proven. 33 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-12-02 09:06:53,192 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:06:53,386 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 30 proven. 33 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2024-12-02 09:06:53,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171216641] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:06:53,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:06:53,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2024-12-02 09:06:53,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044624178] [2024-12-02 09:06:53,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:06:53,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 09:06:53,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:06:53,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 09:06:53,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 09:06:53,388 INFO L87 Difference]: Start difference. First operand 1666 states and 2352 transitions. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 5 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (56), 5 states have call predecessors, (56), 5 states have call successors, (56) [2024-12-02 09:06:53,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:06:53,922 INFO L93 Difference]: Finished difference Result 2879 states and 3996 transitions. [2024-12-02 09:06:53,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 09:06:53,923 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 5 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (56), 5 states have call predecessors, (56), 5 states have call successors, (56) Word has length 152 [2024-12-02 09:06:53,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:06:53,927 INFO L225 Difference]: With dead ends: 2879 [2024-12-02 09:06:53,927 INFO L226 Difference]: Without dead ends: 1274 [2024-12-02 09:06:53,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2024-12-02 09:06:53,930 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 366 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:06:53,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 353 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 09:06:53,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2024-12-02 09:06:54,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 916. [2024-12-02 09:06:54,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 690 states have (on average 1.2782608695652173) internal successors, (882), 694 states have internal predecessors, (882), 174 states have call successors, (174), 51 states have call predecessors, (174), 51 states have return successors, (174), 170 states have call predecessors, (174), 174 states have call successors, (174) [2024-12-02 09:06:54,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1230 transitions. [2024-12-02 09:06:54,047 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1230 transitions. Word has length 152 [2024-12-02 09:06:54,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:06:54,047 INFO L471 AbstractCegarLoop]: Abstraction has 916 states and 1230 transitions. [2024-12-02 09:06:54,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 5 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (56), 5 states have call predecessors, (56), 5 states have call successors, (56) [2024-12-02 09:06:54,048 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1230 transitions. [2024-12-02 09:06:54,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 09:06:54,048 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:06:54,049 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:54,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 09:06:54,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-12-02 09:06:54,249 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:06:54,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:06:54,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1988630265, now seen corresponding path program 1 times [2024-12-02 09:06:54,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:06:54,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098534054] [2024-12-02 09:06:54,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:06:54,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:06:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:06:57,081 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:06:57,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:06:57,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098534054] [2024-12-02 09:06:57,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098534054] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:06:57,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:06:57,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 09:06:57,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601449680] [2024-12-02 09:06:57,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:06:57,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 09:06:57,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:06:57,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 09:06:57,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-12-02 09:06:57,083 INFO L87 Difference]: Start difference. First operand 916 states and 1230 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:06:59,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:06:59,822 INFO L93 Difference]: Finished difference Result 1148 states and 1497 transitions. [2024-12-02 09:06:59,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 09:06:59,823 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 153 [2024-12-02 09:06:59,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:06:59,827 INFO L225 Difference]: With dead ends: 1148 [2024-12-02 09:06:59,827 INFO L226 Difference]: Without dead ends: 1146 [2024-12-02 09:06:59,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=229, Invalid=527, Unknown=0, NotChecked=0, Total=756 [2024-12-02 09:06:59,828 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 288 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:06:59,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 785 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 09:06:59,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2024-12-02 09:06:59,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 928. [2024-12-02 09:06:59,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 702 states have (on average 1.2806267806267806) internal successors, (899), 706 states have internal predecessors, (899), 174 states have call successors, (174), 51 states have call predecessors, (174), 51 states have return successors, (174), 170 states have call predecessors, (174), 174 states have call successors, (174) [2024-12-02 09:06:59,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1247 transitions. [2024-12-02 09:06:59,925 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1247 transitions. Word has length 153 [2024-12-02 09:06:59,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:06:59,925 INFO L471 AbstractCegarLoop]: Abstraction has 928 states and 1247 transitions. [2024-12-02 09:06:59,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:06:59,925 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1247 transitions. [2024-12-02 09:06:59,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 09:06:59,926 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:06:59,926 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:59,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 09:06:59,926 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:06:59,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:06:59,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1986783223, now seen corresponding path program 1 times [2024-12-02 09:06:59,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:06:59,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130155157] [2024-12-02 09:06:59,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:06:59,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:06:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:07:02,208 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:07:02,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:07:02,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130155157] [2024-12-02 09:07:02,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130155157] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:07:02,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:07:02,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 09:07:02,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63897383] [2024-12-02 09:07:02,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:07:02,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 09:07:02,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:07:02,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 09:07:02,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-12-02 09:07:02,210 INFO L87 Difference]: Start difference. First operand 928 states and 1247 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:07:03,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:07:03,328 INFO L93 Difference]: Finished difference Result 1146 states and 1495 transitions. [2024-12-02 09:07:03,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 09:07:03,329 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 153 [2024-12-02 09:07:03,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:07:03,332 INFO L225 Difference]: With dead ends: 1146 [2024-12-02 09:07:03,332 INFO L226 Difference]: Without dead ends: 1144 [2024-12-02 09:07:03,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2024-12-02 09:07:03,333 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 248 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 09:07:03,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 668 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 09:07:03,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2024-12-02 09:07:03,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 918. [2024-12-02 09:07:03,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 692 states have (on average 1.277456647398844) internal successors, (884), 696 states have internal predecessors, (884), 174 states have call successors, (174), 51 states have call predecessors, (174), 51 states have return successors, (174), 170 states have call predecessors, (174), 174 states have call successors, (174) [2024-12-02 09:07:03,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1232 transitions. [2024-12-02 09:07:03,436 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1232 transitions. Word has length 153 [2024-12-02 09:07:03,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:07:03,436 INFO L471 AbstractCegarLoop]: Abstraction has 918 states and 1232 transitions. [2024-12-02 09:07:03,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:07:03,437 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1232 transitions. [2024-12-02 09:07:03,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 09:07:03,437 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:07:03,437 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:03,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 09:07:03,437 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:07:03,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:07:03,438 INFO L85 PathProgramCache]: Analyzing trace with hash 2066690588, now seen corresponding path program 1 times [2024-12-02 09:07:03,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:07:03,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873454920] [2024-12-02 09:07:03,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:07:03,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:07:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:07:03,538 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:07:03,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:07:03,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873454920] [2024-12-02 09:07:03,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873454920] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:07:03,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:07:03,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 09:07:03,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147891346] [2024-12-02 09:07:03,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:07:03,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:07:03,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:07:03,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:07:03,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:07:03,540 INFO L87 Difference]: Start difference. First operand 918 states and 1232 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:07:03,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:07:03,876 INFO L93 Difference]: Finished difference Result 1728 states and 2308 transitions. [2024-12-02 09:07:03,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:07:03,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 153 [2024-12-02 09:07:03,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:07:03,880 INFO L225 Difference]: With dead ends: 1728 [2024-12-02 09:07:03,880 INFO L226 Difference]: Without dead ends: 1324 [2024-12-02 09:07:03,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:07:03,882 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 98 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:07:03,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 362 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 09:07:03,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2024-12-02 09:07:04,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1192. [2024-12-02 09:07:04,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1192 states, 901 states have (on average 1.2774694783573808) internal successors, (1151), 907 states have internal predecessors, (1151), 226 states have call successors, (226), 64 states have call predecessors, (226), 64 states have return successors, (226), 220 states have call predecessors, (226), 226 states have call successors, (226) [2024-12-02 09:07:04,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1603 transitions. [2024-12-02 09:07:04,009 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1603 transitions. Word has length 153 [2024-12-02 09:07:04,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:07:04,009 INFO L471 AbstractCegarLoop]: Abstraction has 1192 states and 1603 transitions. [2024-12-02 09:07:04,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:07:04,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1603 transitions. [2024-12-02 09:07:04,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 09:07:04,010 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:07:04,010 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:04,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 09:07:04,010 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:07:04,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:07:04,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1351007392, now seen corresponding path program 1 times [2024-12-02 09:07:04,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:07:04,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322099294] [2024-12-02 09:07:04,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:07:04,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:07:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:07:04,558 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:07:04,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:07:04,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322099294] [2024-12-02 09:07:04,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322099294] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:07:04,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:07:04,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 09:07:04,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471057214] [2024-12-02 09:07:04,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:07:04,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 09:07:04,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:07:04,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 09:07:04,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:07:04,560 INFO L87 Difference]: Start difference. First operand 1192 states and 1603 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:07:05,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:07:05,681 INFO L93 Difference]: Finished difference Result 2847 states and 3780 transitions. [2024-12-02 09:07:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 09:07:05,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 153 [2024-12-02 09:07:05,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:07:05,685 INFO L225 Difference]: With dead ends: 2847 [2024-12-02 09:07:05,686 INFO L226 Difference]: Without dead ends: 1760 [2024-12-02 09:07:05,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-12-02 09:07:05,688 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 261 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 09:07:05,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 468 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 09:07:05,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2024-12-02 09:07:05,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1286. [2024-12-02 09:07:05,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 985 states have (on average 1.2751269035532995) internal successors, (1256), 991 states have internal predecessors, (1256), 226 states have call successors, (226), 74 states have call predecessors, (226), 74 states have return successors, (226), 220 states have call predecessors, (226), 226 states have call successors, (226) [2024-12-02 09:07:05,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1708 transitions. [2024-12-02 09:07:05,855 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1708 transitions. Word has length 153 [2024-12-02 09:07:05,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:07:05,856 INFO L471 AbstractCegarLoop]: Abstraction has 1286 states and 1708 transitions. [2024-12-02 09:07:05,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:07:05,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1708 transitions. [2024-12-02 09:07:05,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 09:07:05,856 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:07:05,856 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:05,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 09:07:05,857 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:07:05,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:07:05,857 INFO L85 PathProgramCache]: Analyzing trace with hash 71143714, now seen corresponding path program 1 times [2024-12-02 09:07:05,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:07:05,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116883056] [2024-12-02 09:07:05,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:07:05,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:07:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:07:05,985 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:07:05,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:07:05,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116883056] [2024-12-02 09:07:05,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116883056] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:07:05,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:07:05,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 09:07:05,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496666644] [2024-12-02 09:07:05,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:07:05,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:07:05,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:07:05,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:07:05,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:07:05,986 INFO L87 Difference]: Start difference. First operand 1286 states and 1708 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:07:06,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:07:06,325 INFO L93 Difference]: Finished difference Result 2904 states and 3873 transitions. [2024-12-02 09:07:06,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 09:07:06,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 153 [2024-12-02 09:07:06,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:07:06,339 INFO L225 Difference]: With dead ends: 2904 [2024-12-02 09:07:06,339 INFO L226 Difference]: Without dead ends: 1725 [2024-12-02 09:07:06,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:07:06,341 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 133 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:07:06,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 418 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:07:06,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2024-12-02 09:07:06,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1500. [2024-12-02 09:07:06,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1142 states have (on average 1.266199649737303) internal successors, (1446), 1148 states have internal predecessors, (1446), 270 states have call successors, (270), 87 states have call predecessors, (270), 87 states have return successors, (270), 264 states have call predecessors, (270), 270 states have call successors, (270) [2024-12-02 09:07:06,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1986 transitions. [2024-12-02 09:07:06,580 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1986 transitions. Word has length 153 [2024-12-02 09:07:06,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:07:06,581 INFO L471 AbstractCegarLoop]: Abstraction has 1500 states and 1986 transitions. [2024-12-02 09:07:06,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:07:06,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1986 transitions. [2024-12-02 09:07:06,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 09:07:06,582 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:07:06,582 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:06,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 09:07:06,582 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:07:06,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:07:06,582 INFO L85 PathProgramCache]: Analyzing trace with hash 2144208567, now seen corresponding path program 1 times [2024-12-02 09:07:06,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:07:06,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226040276] [2024-12-02 09:07:06,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:07:06,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:07:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:07:06,724 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2024-12-02 09:07:06,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:07:06,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226040276] [2024-12-02 09:07:06,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226040276] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:07:06,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377005712] [2024-12-02 09:07:06,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:07:06,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:07:06,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:07:06,727 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:07:06,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 09:07:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:07:06,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 09:07:06,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:07:07,082 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 211 proven. 6 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2024-12-02 09:07:07,082 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:07:07,260 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2024-12-02 09:07:07,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377005712] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:07:07,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:07:07,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 13 [2024-12-02 09:07:07,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287484638] [2024-12-02 09:07:07,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:07:07,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 09:07:07,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:07:07,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 09:07:07,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-12-02 09:07:07,262 INFO L87 Difference]: Start difference. First operand 1500 states and 1986 transitions. Second operand has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 5 states have call successors, (66), 3 states have call predecessors, (66), 6 states have return successors, (66), 5 states have call predecessors, (66), 5 states have call successors, (66) [2024-12-02 09:07:08,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:07:08,607 INFO L93 Difference]: Finished difference Result 5093 states and 6741 transitions. [2024-12-02 09:07:08,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-02 09:07:08,608 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 5 states have call successors, (66), 3 states have call predecessors, (66), 6 states have return successors, (66), 5 states have call predecessors, (66), 5 states have call successors, (66) Word has length 153 [2024-12-02 09:07:08,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:07:08,616 INFO L225 Difference]: With dead ends: 5093 [2024-12-02 09:07:08,616 INFO L226 Difference]: Without dead ends: 3676 [2024-12-02 09:07:08,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=270, Invalid=722, Unknown=0, NotChecked=0, Total=992 [2024-12-02 09:07:08,618 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 569 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 09:07:08,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 774 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 09:07:08,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3676 states. [2024-12-02 09:07:09,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3676 to 3376. [2024-12-02 09:07:09,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3376 states, 2569 states have (on average 1.2518489684702219) internal successors, (3216), 2594 states have internal predecessors, (3216), 602 states have call successors, (602), 204 states have call predecessors, (602), 204 states have return successors, (602), 577 states have call predecessors, (602), 602 states have call successors, (602) [2024-12-02 09:07:09,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3376 states to 3376 states and 4420 transitions. [2024-12-02 09:07:09,088 INFO L78 Accepts]: Start accepts. Automaton has 3376 states and 4420 transitions. Word has length 153 [2024-12-02 09:07:09,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:07:09,089 INFO L471 AbstractCegarLoop]: Abstraction has 3376 states and 4420 transitions. [2024-12-02 09:07:09,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 5 states have call successors, (66), 3 states have call predecessors, (66), 6 states have return successors, (66), 5 states have call predecessors, (66), 5 states have call successors, (66) [2024-12-02 09:07:09,089 INFO L276 IsEmpty]: Start isEmpty. Operand 3376 states and 4420 transitions. [2024-12-02 09:07:09,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 09:07:09,090 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:07:09,090 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:09,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 09:07:09,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-12-02 09:07:09,290 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:07:09,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:07:09,291 INFO L85 PathProgramCache]: Analyzing trace with hash 228316321, now seen corresponding path program 1 times [2024-12-02 09:07:09,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:07:09,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983157326] [2024-12-02 09:07:09,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:07:09,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:07:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 09:07:09,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [152638475] [2024-12-02 09:07:09,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:07:09,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:07:09,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:07:09,333 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:07:09,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 09:07:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:07:09,462 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 09:07:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:07:09,574 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 09:07:09,575 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 09:07:09,575 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 09:07:09,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 09:07:09,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:07:09,779 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:07:09,858 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 09:07:09,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 09:07:09 BoogieIcfgContainer [2024-12-02 09:07:09,861 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 09:07:09,862 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 09:07:09,862 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 09:07:09,862 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 09:07:09,863 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:03:49" (3/4) ... [2024-12-02 09:07:09,864 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 09:07:09,865 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 09:07:09,865 INFO L158 Benchmark]: Toolchain (without parser) took 200852.96ms. Allocated memory was 117.4MB in the beginning and 729.8MB in the end (delta: 612.4MB). Free memory was 92.7MB in the beginning and 539.9MB in the end (delta: -447.2MB). Peak memory consumption was 165.0MB. Max. memory is 16.1GB. [2024-12-02 09:07:09,866 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 09:07:09,866 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.30ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 77.9MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 09:07:09,866 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.86ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 74.8MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 09:07:09,866 INFO L158 Benchmark]: Boogie Preprocessor took 45.99ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 70.0MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 09:07:09,866 INFO L158 Benchmark]: RCFGBuilder took 447.98ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 46.9MB in the end (delta: 23.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 09:07:09,867 INFO L158 Benchmark]: TraceAbstraction took 200061.59ms. Allocated memory was 117.4MB in the beginning and 729.8MB in the end (delta: 612.4MB). Free memory was 46.3MB in the beginning and 540.1MB in the end (delta: -493.8MB). Peak memory consumption was 123.0MB. Max. memory is 16.1GB. [2024-12-02 09:07:09,867 INFO L158 Benchmark]: Witness Printer took 2.93ms. Allocated memory is still 729.8MB. Free memory was 540.1MB in the beginning and 539.9MB in the end (delta: 150.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 09:07:09,868 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.30ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 77.9MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.86ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 74.8MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.99ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 70.0MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 447.98ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 46.9MB in the end (delta: 23.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 200061.59ms. Allocated memory was 117.4MB in the beginning and 729.8MB in the end (delta: 612.4MB). Free memory was 46.3MB in the beginning and 540.1MB in the end (delta: -493.8MB). Peak memory consumption was 123.0MB. Max. memory is 16.1GB. * Witness Printer took 2.93ms. Allocated memory is still 729.8MB. Free memory was 540.1MB in the beginning and 539.9MB in the end (delta: 150.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 80, overapproximation of someBinaryDOUBLEComparisonOperation at line 172, overapproximation of someBinaryDOUBLEComparisonOperation at line 170, overapproximation of someBinaryDOUBLEComparisonOperation at line 178, overapproximation of someBinaryDOUBLEComparisonOperation at line 80. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 50; [L23] signed char var_1_3 = 8; [L24] signed char var_1_4 = 10; [L25] double var_1_5 = 16.5; [L26] signed char var_1_6 = 64; [L27] signed char var_1_7 = 2; [L28] unsigned short int var_1_8 = 256; [L29] unsigned short int var_1_10 = 63583; [L30] unsigned short int var_1_11 = 33789; [L31] unsigned char var_1_12 = 1; [L32] unsigned char var_1_14 = 0; [L33] signed long int var_1_15 = 8; [L34] signed short int var_1_16 = -16; [L35] signed short int var_1_18 = 16; [L36] signed short int var_1_19 = 25; [L37] signed short int var_1_20 = 25; [L38] signed short int var_1_21 = 50; [L39] signed long int var_1_22 = -8; [L40] unsigned long int var_1_26 = 10; [L41] signed long int var_1_28 = -10000; [L42] signed long int var_1_29 = -1263929197; [L43] signed short int var_1_31 = 1; [L44] unsigned char var_1_36 = 32; [L45] double var_1_39 = 3.6; [L46] double var_1_40 = 24.25; [L47] double var_1_41 = 31.25; [L48] unsigned long int var_1_42 = 10; [L49] unsigned char last_1_var_1_12 = 1; VAL [isInitial=0, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L182] isInitial = 1 [L183] FCALL initially() [L185] CALL updateLastVariables() [L175] last_1_var_1_12 = var_1_12 VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L185] RET updateLastVariables() [L186] CALL updateVariables() [L139] var_1_3 = __VERIFIER_nondet_char() [L140] CALL assume_abort_if_not(var_1_3 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L140] RET assume_abort_if_not(var_1_3 >= -63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L141] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L141] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L142] var_1_4 = __VERIFIER_nondet_char() [L143] CALL assume_abort_if_not(var_1_4 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L143] RET assume_abort_if_not(var_1_4 >= -63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L144] CALL assume_abort_if_not(var_1_4 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L144] RET assume_abort_if_not(var_1_4 <= 63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L145] var_1_6 = __VERIFIER_nondet_char() [L146] CALL assume_abort_if_not(var_1_6 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=2, var_1_8=256] [L146] RET assume_abort_if_not(var_1_6 >= -1) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=2, var_1_8=256] [L147] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=2, var_1_8=256] [L147] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=2, var_1_8=256] [L148] var_1_7 = __VERIFIER_nondet_char() [L149] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L149] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L150] CALL assume_abort_if_not(var_1_7 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L150] RET assume_abort_if_not(var_1_7 <= 127) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L151] var_1_10 = __VERIFIER_nondet_ushort() [L152] CALL assume_abort_if_not(var_1_10 >= 49150) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L152] RET assume_abort_if_not(var_1_10 >= 49150) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L153] CALL assume_abort_if_not(var_1_10 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L153] RET assume_abort_if_not(var_1_10 <= 65534) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L154] var_1_11 = __VERIFIER_nondet_ushort() [L155] CALL assume_abort_if_not(var_1_11 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L155] RET assume_abort_if_not(var_1_11 >= 32767) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L156] CALL assume_abort_if_not(var_1_11 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L156] RET assume_abort_if_not(var_1_11 <= 65534) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L157] var_1_14 = __VERIFIER_nondet_uchar() [L158] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L158] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L159] CALL assume_abort_if_not(var_1_14 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L159] RET assume_abort_if_not(var_1_14 <= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L160] var_1_20 = __VERIFIER_nondet_short() [L161] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L161] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L162] CALL assume_abort_if_not(var_1_20 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L162] RET assume_abort_if_not(var_1_20 <= 16383) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=50, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L163] var_1_21 = __VERIFIER_nondet_short() [L164] CALL assume_abort_if_not(var_1_21 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L164] RET assume_abort_if_not(var_1_21 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L165] CALL assume_abort_if_not(var_1_21 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L165] RET assume_abort_if_not(var_1_21 <= 16383) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1263929197, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L166] var_1_29 = __VERIFIER_nondet_long() [L167] CALL assume_abort_if_not(var_1_29 >= -2147483646) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L167] RET assume_abort_if_not(var_1_29 >= -2147483646) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L168] CALL assume_abort_if_not(var_1_29 <= -1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L168] RET assume_abort_if_not(var_1_29 <= -1073741823) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_40=97/4, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L169] var_1_40 = __VERIFIER_nondet_double() [L170] CALL assume_abort_if_not((var_1_40 >= -922337.2036854765600e+13F && var_1_40 <= -1.0e-20F) || (var_1_40 <= 9223372.036854765600e+12F && var_1_40 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L170] RET assume_abort_if_not((var_1_40 >= -922337.2036854765600e+13F && var_1_40 <= -1.0e-20F) || (var_1_40 <= 9223372.036854765600e+12F && var_1_40 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_41=125/4, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L171] var_1_41 = __VERIFIER_nondet_double() [L172] CALL assume_abort_if_not((var_1_41 >= -922337.2036854765600e+13F && var_1_41 <= -1.0e-20F) || (var_1_41 <= 9223372.036854765600e+12F && var_1_41 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L172] RET assume_abort_if_not((var_1_41 >= -922337.2036854765600e+13F && var_1_41 <= -1.0e-20F) || (var_1_41 <= 9223372.036854765600e+12F && var_1_41 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L186] RET updateVariables() [L187] CALL step() [L53] COND TRUE var_1_11 > var_1_7 VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L54] COND FALSE !(\read(var_1_14)) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=10, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L58] var_1_26 = var_1_7 VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-10000, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L59] COND TRUE ((((-256) < 0 ) ? -(-256) : (-256))) < var_1_11 [L60] var_1_28 = (5 - (((((var_1_29) < 0 ) ? -(var_1_29) : (var_1_29))) - var_1_21)) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L64] COND TRUE var_1_10 > var_1_15 VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L65] COND TRUE var_1_29 < var_1_15 VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=1, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L66] COND TRUE var_1_29 <= (-64 & var_1_11) [L67] var_1_31 = ((((var_1_7) > (((((8) < (var_1_4)) ? (8) : (var_1_4))))) ? (var_1_7) : (((((8) < (var_1_4)) ? (8) : (var_1_4)))))) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=32, var_1_39=18/5, var_1_3=-8, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L73] COND FALSE !(((((((((var_1_8) > (var_1_18)) ? (var_1_8) : (var_1_18)))) > (var_1_6)) ? (((((var_1_8) > (var_1_18)) ? (var_1_8) : (var_1_18)))) : (var_1_6))) > var_1_10) [L78] var_1_36 = var_1_7 VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=127, var_1_39=18/5, var_1_3=-8, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L80] var_1_39 = ((((((((var_1_40) < 0 ) ? -(var_1_40) : (var_1_40)))) > (((((var_1_41) < (100.75)) ? (var_1_41) : (100.75))))) ? (((((var_1_40) < 0 ) ? -(var_1_40) : (var_1_40)))) : (((((var_1_41) < (100.75)) ? (var_1_41) : (100.75)))))) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=127, var_1_39=2, var_1_3=-8, var_1_40=0, var_1_41=0, var_1_42=10, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L81] COND FALSE !(var_1_11 <= (~ ((((var_1_6) < (var_1_4)) ? (var_1_6) : (var_1_4))))) [L92] var_1_42 = var_1_7 VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=127, var_1_39=2, var_1_3=-8, var_1_40=0, var_1_41=0, var_1_42=127, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L94] signed char stepLocal_1 = var_1_6; [L95] unsigned char stepLocal_0 = last_1_var_1_12; VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, stepLocal_1=127, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=127, var_1_39=2, var_1_3=-8, var_1_40=0, var_1_41=0, var_1_42=127, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=256] [L96] COND FALSE !(-25 == stepLocal_1) [L101] var_1_8 = ((((var_1_7) > (var_1_11)) ? (var_1_7) : (var_1_11))) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=127, var_1_39=2, var_1_3=-8, var_1_40=0, var_1_41=0, var_1_42=127, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=65534] [L103] signed char stepLocal_2 = var_1_7; VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, stepLocal_2=127, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=127, var_1_39=2, var_1_3=-8, var_1_40=0, var_1_41=0, var_1_42=127, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=65534] [L104] COND TRUE var_1_8 >= stepLocal_2 [L105] var_1_12 = (! var_1_14) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=127, var_1_39=2, var_1_3=-8, var_1_40=0, var_1_41=0, var_1_42=127, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=65534] [L107] COND TRUE \read(var_1_12) [L108] var_1_1 = (var_1_3 + var_1_4) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=0, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=127, var_1_39=2, var_1_3=-8, var_1_40=0, var_1_41=0, var_1_42=127, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=65534] [L110] COND TRUE var_1_4 >= (var_1_6 - var_1_7) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=0, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=127, var_1_39=2, var_1_3=-8, var_1_40=0, var_1_41=0, var_1_42=127, var_1_4=8, var_1_5=33/2, var_1_6=127, var_1_7=127, var_1_8=65534] [L111] COND TRUE \read(var_1_12) [L112] var_1_5 = 8.25 VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=0, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=127, var_1_39=2, var_1_3=-8, var_1_40=0, var_1_41=0, var_1_42=127, var_1_4=8, var_1_5=33/4, var_1_6=127, var_1_7=127, var_1_8=65534] [L115] signed char stepLocal_4 = var_1_6; VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, stepLocal_4=127, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=0, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=127, var_1_39=2, var_1_3=-8, var_1_40=0, var_1_41=0, var_1_42=127, var_1_4=8, var_1_5=33/4, var_1_6=127, var_1_7=127, var_1_8=65534] [L116] COND TRUE var_1_1 < stepLocal_4 [L117] var_1_18 = (var_1_6 - var_1_7) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=0, var_1_19=25, var_1_1=0, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=127, var_1_39=2, var_1_3=-8, var_1_40=0, var_1_41=0, var_1_42=127, var_1_4=8, var_1_5=33/4, var_1_6=127, var_1_7=127, var_1_8=65534] [L121] COND TRUE \read(var_1_12) [L122] var_1_19 = ((var_1_7 - ((((var_1_20) < (var_1_21)) ? (var_1_20) : (var_1_21)))) + var_1_6) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=0, var_1_19=-16129, var_1_1=0, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=127, var_1_39=2, var_1_3=-8, var_1_40=0, var_1_41=0, var_1_42=127, var_1_4=8, var_1_5=33/4, var_1_6=127, var_1_7=127, var_1_8=65534] [L124] COND TRUE -64 > (var_1_6 + var_1_19) [L125] var_1_15 = (var_1_11 - var_1_7) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=65407, var_1_16=-16, var_1_18=0, var_1_19=-16129, var_1_1=0, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=127, var_1_39=2, var_1_3=-8, var_1_40=0, var_1_41=0, var_1_42=127, var_1_4=8, var_1_5=33/4, var_1_6=127, var_1_7=127, var_1_8=65534] [L133] signed long int stepLocal_3 = ((((var_1_11) > (var_1_18)) ? (var_1_11) : (var_1_18))) + (var_1_15 / var_1_10); VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, stepLocal_3=65535, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=65407, var_1_16=-16, var_1_18=0, var_1_19=-16129, var_1_1=0, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=127, var_1_39=2, var_1_3=-8, var_1_40=0, var_1_41=0, var_1_42=127, var_1_4=8, var_1_5=33/4, var_1_6=127, var_1_7=127, var_1_8=65534] [L134] COND FALSE !(var_1_19 > stepLocal_3) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=65407, var_1_16=-16, var_1_18=0, var_1_19=-16129, var_1_1=0, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=127, var_1_39=2, var_1_3=-8, var_1_40=0, var_1_41=0, var_1_42=127, var_1_4=8, var_1_5=33/4, var_1_6=127, var_1_7=127, var_1_8=65534] [L187] RET step() [L188] CALL, EXPR property() [L178-L179] return (((((((var_1_12 ? (var_1_1 == ((signed char) (var_1_3 + var_1_4))) : 1) && ((var_1_4 >= (var_1_6 - var_1_7)) ? (var_1_12 ? (var_1_5 == ((double) 8.25)) : 1) : 1)) && ((-25 == var_1_6) ? ((last_1_var_1_12 && last_1_var_1_12) ? (var_1_8 == ((unsigned short int) ((((((var_1_10 - 10) - 16)) > ((var_1_11 - var_1_7))) ? (((var_1_10 - 10) - 16)) : ((var_1_11 - var_1_7)))))) : 1) : (var_1_8 == ((unsigned short int) ((((var_1_7) > (var_1_11)) ? (var_1_7) : (var_1_11))))))) && ((var_1_8 >= var_1_7) ? (var_1_12 == ((unsigned char) (! var_1_14))) : 1)) && ((-64 > (var_1_6 + var_1_19)) ? (var_1_15 == ((signed long int) (var_1_11 - var_1_7))) : ((! var_1_12) ? (var_1_12 ? (var_1_15 == ((signed long int) 4)) : 1) : 1))) && ((var_1_19 > (((((var_1_11) > (var_1_18)) ? (var_1_11) : (var_1_18))) + (var_1_15 / var_1_10))) ? (var_1_16 == ((signed short int) var_1_4)) : 1)) && ((var_1_1 < var_1_6) ? (var_1_18 == ((signed short int) (var_1_6 - var_1_7))) : (var_1_18 == ((signed short int) (((((var_1_6 + var_1_4)) < (var_1_1)) ? ((var_1_6 + var_1_4)) : (var_1_1))))))) && (var_1_12 ? (var_1_19 == ((signed short int) ((var_1_7 - ((((var_1_20) < (var_1_21)) ? (var_1_20) : (var_1_21)))) + var_1_6))) : 1) ; VAL [\result=0, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=65407, var_1_16=-16, var_1_18=0, var_1_19=-16129, var_1_1=0, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=127, var_1_39=2, var_1_3=-8, var_1_40=0, var_1_41=0, var_1_42=127, var_1_4=8, var_1_5=33/4, var_1_6=127, var_1_7=127, var_1_8=65534] [L188] RET, EXPR property() [L188] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=65407, var_1_16=-16, var_1_18=0, var_1_19=-16129, var_1_1=0, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=127, var_1_39=2, var_1_3=-8, var_1_40=0, var_1_41=0, var_1_42=127, var_1_4=8, var_1_5=33/4, var_1_6=127, var_1_7=127, var_1_8=65534] [L19] reach_error() VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=-2, var_1_12=1, var_1_14=0, var_1_15=65407, var_1_16=-16, var_1_18=0, var_1_19=-16129, var_1_1=0, var_1_20=16383, var_1_21=16383, var_1_22=-8, var_1_26=127, var_1_28=-1073725435, var_1_29=-1073741823, var_1_31=127, var_1_36=127, var_1_39=2, var_1_3=-8, var_1_40=0, var_1_41=0, var_1_42=127, var_1_4=8, var_1_5=33/4, var_1_6=127, var_1_7=127, var_1_8=65534] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 199.9s, OverallIterations: 32, TraceHistogramMax: 22, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 54.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8858 SdHoareTripleChecker+Valid, 28.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8791 mSDsluCounter, 19588 SdHoareTripleChecker+Invalid, 25.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15221 mSDsCounter, 1249 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17962 IncrementalHoareTripleChecker+Invalid, 19211 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1249 mSolverCounterUnsat, 4367 mSDtfsCounter, 17962 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1412 GetRequests, 908 SyntacticMatches, 1 SemanticMatches, 503 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1526 ImplicationChecksByTransitivity, 41.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3376occurred in iteration=31, InterpolantAutomatonStates: 389, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.9s AutomataMinimizationTime, 31 MinimizatonAttempts, 8489 StatesRemovedByMinimization, 30 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 138.4s InterpolantComputationTime, 5467 NumberOfCodeBlocks, 5467 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 5428 ConstructedInterpolants, 0 QuantifiedInterpolants, 40505 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1090 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 36 InterpolantComputations, 29 PerfectInterpolantSequences, 33099/33264 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 09:07:10,077 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-12-02 09:07:10,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/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_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/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 48c0e642396cb981ec97788bf4c6fd139bd12f99e5b4ac8264222e0d2b78e970 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 09:07:11,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 09:07:11,963 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 09:07:11,969 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 09:07:11,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 09:07:11,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 09:07:11,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 09:07:11,991 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 09:07:11,992 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 09:07:11,992 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 09:07:11,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 09:07:11,992 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 09:07:11,992 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 09:07:11,992 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 09:07:11,993 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 09:07:11,993 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 09:07:11,993 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 09:07:11,993 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 09:07:11,993 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 09:07:11,993 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 09:07:11,993 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 09:07:11,993 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 09:07:11,993 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 09:07:11,993 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 09:07:11,993 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 09:07:11,993 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 09:07:11,993 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 09:07:11,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 09:07:11,993 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 09:07:11,994 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 09:07:11,994 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 09:07:11,994 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 09:07:11,994 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 09:07:11,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 09:07:11,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:07:11,995 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 09:07:11,995 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 09:07:11,995 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 09:07:11,995 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 09:07:11,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:07:11,995 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 09:07:11,995 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 09:07:11,995 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 09:07:11,995 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 09:07:11,995 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 09:07:11,996 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 09:07:11,996 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 09:07:11,996 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 09:07:11,996 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 09:07:11,996 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 09:07:11,996 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_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/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 -> 48c0e642396cb981ec97788bf4c6fd139bd12f99e5b4ac8264222e0d2b78e970 [2024-12-02 09:07:12,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 09:07:12,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 09:07:12,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 09:07:12,231 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 09:07:12,232 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 09:07:12,233 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i [2024-12-02 09:07:15,049 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/data/f5f87d17b/8f22c140e3cf42cb864b832dc926a816/FLAGf3a794998 [2024-12-02 09:07:15,265 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 09:07:15,266 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i [2024-12-02 09:07:15,275 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/data/f5f87d17b/8f22c140e3cf42cb864b832dc926a816/FLAGf3a794998 [2024-12-02 09:07:15,289 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/data/f5f87d17b/8f22c140e3cf42cb864b832dc926a816 [2024-12-02 09:07:15,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 09:07:15,292 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 09:07:15,294 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 09:07:15,294 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 09:07:15,298 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 09:07:15,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:07:15" (1/1) ... [2024-12-02 09:07:15,299 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19efcdf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:15, skipping insertion in model container [2024-12-02 09:07:15,299 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:07:15" (1/1) ... [2024-12-02 09:07:15,317 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 09:07:15,448 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_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i[919,932] [2024-12-02 09:07:15,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:07:15,518 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 09:07:15,526 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_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i[919,932] [2024-12-02 09:07:15,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:07:15,575 INFO L204 MainTranslator]: Completed translation [2024-12-02 09:07:15,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:15 WrapperNode [2024-12-02 09:07:15,576 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 09:07:15,577 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 09:07:15,577 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 09:07:15,577 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 09:07:15,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:15" (1/1) ... [2024-12-02 09:07:15,593 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:15" (1/1) ... [2024-12-02 09:07:15,612 INFO L138 Inliner]: procedures = 27, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 172 [2024-12-02 09:07:15,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 09:07:15,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 09:07:15,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 09:07:15,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 09:07:15,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:15" (1/1) ... [2024-12-02 09:07:15,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:15" (1/1) ... [2024-12-02 09:07:15,624 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:15" (1/1) ... [2024-12-02 09:07:15,633 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 09:07:15,633 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:15" (1/1) ... [2024-12-02 09:07:15,634 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:15" (1/1) ... [2024-12-02 09:07:15,642 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:15" (1/1) ... [2024-12-02 09:07:15,643 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:15" (1/1) ... [2024-12-02 09:07:15,646 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:15" (1/1) ... [2024-12-02 09:07:15,649 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:15" (1/1) ... [2024-12-02 09:07:15,650 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:15" (1/1) ... [2024-12-02 09:07:15,653 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 09:07:15,654 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 09:07:15,654 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 09:07:15,655 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 09:07:15,655 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:15" (1/1) ... [2024-12-02 09:07:15,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:07:15,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:07:15,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 09:07:15,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 09:07:15,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 09:07:15,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 09:07:15,709 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 09:07:15,709 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 09:07:15,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 09:07:15,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 09:07:15,777 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 09:07:15,778 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 09:07:16,123 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-12-02 09:07:16,123 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 09:07:16,132 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 09:07:16,132 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 09:07:16,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:07:16 BoogieIcfgContainer [2024-12-02 09:07:16,132 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 09:07:16,134 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 09:07:16,134 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 09:07:16,138 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 09:07:16,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:07:15" (1/3) ... [2024-12-02 09:07:16,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f3a92f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:07:16, skipping insertion in model container [2024-12-02 09:07:16,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:15" (2/3) ... [2024-12-02 09:07:16,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f3a92f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:07:16, skipping insertion in model container [2024-12-02 09:07:16,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:07:16" (3/3) ... [2024-12-02 09:07:16,141 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i [2024-12-02 09:07:16,153 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 09:07:16,154 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-66.i that has 2 procedures, 82 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 09:07:16,198 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 09:07:16,207 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;@e0ec608, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 09:07:16,207 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 09:07:16,211 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 57 states have (on average 1.4912280701754386) internal successors, (85), 58 states have internal predecessors, (85), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 09:07:16,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 09:07:16,222 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:07:16,222 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:16,223 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:07:16,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:07:16,227 INFO L85 PathProgramCache]: Analyzing trace with hash 851425572, now seen corresponding path program 1 times [2024-12-02 09:07:16,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:07:16,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358364543] [2024-12-02 09:07:16,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:07:16,238 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 09:07:16,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:07:16,240 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 09:07:16,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 09:07:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:07:16,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 09:07:16,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:07:16,501 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2024-12-02 09:07:16,501 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:07:16,502 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:07:16,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358364543] [2024-12-02 09:07:16,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358364543] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:07:16,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:07:16,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 09:07:16,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489485015] [2024-12-02 09:07:16,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:07:16,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 09:07:16,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:07:16,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 09:07:16,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 09:07:16,524 INFO L87 Difference]: Start difference. First operand has 82 states, 57 states have (on average 1.4912280701754386) internal successors, (85), 58 states have internal predecessors, (85), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:07:16,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:07:16,548 INFO L93 Difference]: Finished difference Result 157 states and 274 transitions. [2024-12-02 09:07:16,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 09:07:16,550 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 150 [2024-12-02 09:07:16,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:07:16,555 INFO L225 Difference]: With dead ends: 157 [2024-12-02 09:07:16,555 INFO L226 Difference]: Without dead ends: 78 [2024-12-02 09:07:16,558 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 149 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 09:07:16,561 INFO L435 NwaCegarLoop]: 122 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, 122 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 09:07:16,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:07:16,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-12-02 09:07:16,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-12-02 09:07:16,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 54 states have (on average 1.4444444444444444) internal successors, (78), 54 states have internal predecessors, (78), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 09:07:16,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 122 transitions. [2024-12-02 09:07:16,595 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 122 transitions. Word has length 150 [2024-12-02 09:07:16,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:07:16,595 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 122 transitions. [2024-12-02 09:07:16,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:07:16,596 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 122 transitions. [2024-12-02 09:07:16,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 09:07:16,599 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:07:16,599 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:16,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 09:07:16,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 09:07:16,800 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:07:16,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:07:16,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1371466408, now seen corresponding path program 1 times [2024-12-02 09:07:16,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:07:16,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [776915586] [2024-12-02 09:07:16,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:07:16,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 09:07:16,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:07:16,803 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 09:07:16,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 09:07:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:07:17,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 09:07:17,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:07:17,735 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 453 proven. 39 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-12-02 09:07:17,735 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:07:17,940 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:07:17,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [776915586] [2024-12-02 09:07:17,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [776915586] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:07:17,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1726137619] [2024-12-02 09:07:17,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:07:17,941 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 09:07:17,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 09:07:17,943 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 09:07:17,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-12-02 09:07:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:07:18,569 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 09:07:18,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:07:18,623 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-12-02 09:07:18,624 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:07:18,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1726137619] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:07:18,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:07:18,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-12-02 09:07:18,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108790864] [2024-12-02 09:07:18,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:07:18,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:07:18,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:07:18,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:07:18,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:07:18,626 INFO L87 Difference]: Start difference. First operand 78 states and 122 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:07:18,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:07:18,853 INFO L93 Difference]: Finished difference Result 205 states and 321 transitions. [2024-12-02 09:07:18,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:07:18,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 150 [2024-12-02 09:07:18,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:07:18,856 INFO L225 Difference]: With dead ends: 205 [2024-12-02 09:07:18,856 INFO L226 Difference]: Without dead ends: 130 [2024-12-02 09:07:18,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:07:18,858 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 80 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:07:18,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 240 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 09:07:18,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-12-02 09:07:18,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2024-12-02 09:07:18,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 92 states have (on average 1.4565217391304348) internal successors, (134), 93 states have internal predecessors, (134), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-12-02 09:07:18,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 198 transitions. [2024-12-02 09:07:18,876 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 198 transitions. Word has length 150 [2024-12-02 09:07:18,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:07:18,876 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 198 transitions. [2024-12-02 09:07:18,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-12-02 09:07:18,877 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 198 transitions. [2024-12-02 09:07:18,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 09:07:18,879 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:07:18,879 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:18,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 09:07:19,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-12-02 09:07:19,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 09:07:19,280 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:07:19,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:07:19,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1794168234, now seen corresponding path program 1 times [2024-12-02 09:07:19,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:07:19,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249589021] [2024-12-02 09:07:19,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:07:19,282 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 09:07:19,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:07:19,284 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 09:07:19,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-12-02 09:07:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:07:19,478 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 09:07:19,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:07:19,649 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 481 proven. 33 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-12-02 09:07:19,649 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:07:19,867 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 30 proven. 33 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2024-12-02 09:07:19,868 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:07:19,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249589021] [2024-12-02 09:07:19,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249589021] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:07:19,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 09:07:19,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-12-02 09:07:19,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016423442] [2024-12-02 09:07:19,868 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 09:07:19,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 09:07:19,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:07:19,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 09:07:19,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 09:07:19,870 INFO L87 Difference]: Start difference. First operand 127 states and 198 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-12-02 09:07:20,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:07:20,223 INFO L93 Difference]: Finished difference Result 206 states and 318 transitions. [2024-12-02 09:07:20,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 09:07:20,226 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 150 [2024-12-02 09:07:20,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:07:20,228 INFO L225 Difference]: With dead ends: 206 [2024-12-02 09:07:20,228 INFO L226 Difference]: Without dead ends: 82 [2024-12-02 09:07:20,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-12-02 09:07:20,229 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 125 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:07:20,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 195 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 09:07:20,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-12-02 09:07:20,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2024-12-02 09:07:20,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 55 states have internal predecessors, (73), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 09:07:20,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 117 transitions. [2024-12-02 09:07:20,239 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 117 transitions. Word has length 150 [2024-12-02 09:07:20,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:07:20,240 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 117 transitions. [2024-12-02 09:07:20,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-12-02 09:07:20,240 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 117 transitions. [2024-12-02 09:07:20,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 09:07:20,242 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:07:20,242 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:20,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-12-02 09:07:20,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 09:07:20,443 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:07:20,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:07:20,443 INFO L85 PathProgramCache]: Analyzing trace with hash 708555252, now seen corresponding path program 1 times [2024-12-02 09:07:20,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:07:20,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2029876517] [2024-12-02 09:07:20,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:07:20,444 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 09:07:20,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:07:20,446 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 09:07:20,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-12-02 09:07:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:07:20,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 09:07:20,594 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:07:20,707 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 463 proven. 24 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2024-12-02 09:07:20,707 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:07:20,906 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 39 proven. 24 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2024-12-02 09:07:20,906 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:07:20,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2029876517] [2024-12-02 09:07:20,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2029876517] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:07:20,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 09:07:20,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2024-12-02 09:07:20,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460754423] [2024-12-02 09:07:20,907 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 09:07:20,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 09:07:20,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:07:20,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 09:07:20,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:07:20,909 INFO L87 Difference]: Start difference. First operand 80 states and 117 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 09:07:21,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:07:21,250 INFO L93 Difference]: Finished difference Result 165 states and 238 transitions. [2024-12-02 09:07:21,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 09:07:21,254 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 151 [2024-12-02 09:07:21,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:07:21,256 INFO L225 Difference]: With dead ends: 165 [2024-12-02 09:07:21,256 INFO L226 Difference]: Without dead ends: 88 [2024-12-02 09:07:21,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 294 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-12-02 09:07:21,258 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 128 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:07:21,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 213 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 09:07:21,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-12-02 09:07:21,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2024-12-02 09:07:21,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 58 states have (on average 1.293103448275862) internal successors, (75), 58 states have internal predecessors, (75), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 09:07:21,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 119 transitions. [2024-12-02 09:07:21,271 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 119 transitions. Word has length 151 [2024-12-02 09:07:21,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:07:21,271 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 119 transitions. [2024-12-02 09:07:21,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 09:07:21,272 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 119 transitions. [2024-12-02 09:07:21,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 09:07:21,274 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:07:21,274 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:21,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-12-02 09:07:21,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 09:07:21,474 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:07:21,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:07:21,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1096883082, now seen corresponding path program 1 times [2024-12-02 09:07:21,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:07:21,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643125350] [2024-12-02 09:07:21,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:07:21,476 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 09:07:21,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:07:21,477 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 09:07:21,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-12-02 09:07:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:07:21,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 09:07:21,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:07:22,225 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 453 proven. 39 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-12-02 09:07:22,225 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:07:22,365 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:07:22,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1643125350] [2024-12-02 09:07:22,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1643125350] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:07:22,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1287517753] [2024-12-02 09:07:22,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:07:22,366 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 09:07:22,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 09:07:22,369 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 09:07:22,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-12-02 09:07:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:07:22,925 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 09:07:22,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:07:23,377 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 453 proven. 39 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-12-02 09:07:23,377 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:07:23,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1287517753] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:07:23,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 09:07:23,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2024-12-02 09:07:23,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070159176] [2024-12-02 09:07:23,492 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 09:07:23,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:07:23,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:07:23,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:07:23,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-12-02 09:07:23,493 INFO L87 Difference]: Start difference. First operand 84 states and 119 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:07:23,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:07:23,913 INFO L93 Difference]: Finished difference Result 254 states and 358 transitions. [2024-12-02 09:07:23,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 09:07:23,913 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 151 [2024-12-02 09:07:23,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:07:23,915 INFO L225 Difference]: With dead ends: 254 [2024-12-02 09:07:23,916 INFO L226 Difference]: Without dead ends: 173 [2024-12-02 09:07:23,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-12-02 09:07:23,917 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 58 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:07:23,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 397 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 09:07:23,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-12-02 09:07:23,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 167. [2024-12-02 09:07:23,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 115 states have (on average 1.2869565217391303) internal successors, (148), 115 states have internal predecessors, (148), 44 states have call successors, (44), 7 states have call predecessors, (44), 7 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-12-02 09:07:23,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 236 transitions. [2024-12-02 09:07:23,939 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 236 transitions. Word has length 151 [2024-12-02 09:07:23,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:07:23,939 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 236 transitions. [2024-12-02 09:07:23,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 09:07:23,939 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 236 transitions. [2024-12-02 09:07:23,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 09:07:23,941 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:07:23,942 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:23,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-12-02 09:07:24,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-12-02 09:07:24,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 09:07:24,342 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:07:24,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:07:24,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1761871723, now seen corresponding path program 1 times [2024-12-02 09:07:24,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:07:24,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807318164] [2024-12-02 09:07:24,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:07:24,344 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 09:07:24,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:07:24,345 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 09:07:24,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-12-02 09:07:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:07:24,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 09:07:24,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:07:24,807 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 211 proven. 6 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2024-12-02 09:07:24,807 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:07:25,004 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2024-12-02 09:07:25,004 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 09:07:25,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807318164] [2024-12-02 09:07:25,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807318164] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:07:25,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 09:07:25,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2024-12-02 09:07:25,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245488866] [2024-12-02 09:07:25,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 09:07:25,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 09:07:25,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 09:07:25,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 09:07:25,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-12-02 09:07:25,006 INFO L87 Difference]: Start difference. First operand 167 states and 236 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 4 states have call successors, (44), 3 states have call predecessors, (44), 5 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2024-12-02 09:07:25,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:07:25,809 INFO L93 Difference]: Finished difference Result 396 states and 548 transitions. [2024-12-02 09:07:25,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 09:07:25,809 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 4 states have call successors, (44), 3 states have call predecessors, (44), 5 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) Word has length 152 [2024-12-02 09:07:25,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:07:25,811 INFO L225 Difference]: With dead ends: 396 [2024-12-02 09:07:25,811 INFO L226 Difference]: Without dead ends: 232 [2024-12-02 09:07:25,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=185, Unknown=0, NotChecked=0, Total=306 [2024-12-02 09:07:25,812 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 438 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 09:07:25,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 270 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 09:07:25,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-12-02 09:07:25,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 217. [2024-12-02 09:07:25,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 143 states have (on average 1.2237762237762237) internal successors, (175), 144 states have internal predecessors, (175), 62 states have call successors, (62), 11 states have call predecessors, (62), 11 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-12-02 09:07:25,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 299 transitions. [2024-12-02 09:07:25,834 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 299 transitions. Word has length 152 [2024-12-02 09:07:25,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:07:25,835 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 299 transitions. [2024-12-02 09:07:25,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 4 states have call successors, (44), 3 states have call predecessors, (44), 5 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2024-12-02 09:07:25,835 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 299 transitions. [2024-12-02 09:07:25,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 09:07:25,837 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:07:25,837 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:25,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-12-02 09:07:26,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 09:07:26,037 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:07:26,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:07:26,038 INFO L85 PathProgramCache]: Analyzing trace with hash -793783231, now seen corresponding path program 1 times [2024-12-02 09:07:26,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 09:07:26,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698277626] [2024-12-02 09:07:26,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:07:26,038 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 09:07:26,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 09:07:26,040 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 09:07:26,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d4d6af-9a91-462f-bcfe-cb58fdbab0a3/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-12-02 09:07:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:07:26,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-12-02 09:07:26,265 INFO L279 TraceCheckSpWp]: Computing forward predicates...