./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-56.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_0bda22ac-45e2-4404-a9ca-132b71e30e79/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bda22ac-45e2-4404-a9ca-132b71e30e79/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bda22ac-45e2-4404-a9ca-132b71e30e79/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bda22ac-45e2-4404-a9ca-132b71e30e79/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-56.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bda22ac-45e2-4404-a9ca-132b71e30e79/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bda22ac-45e2-4404-a9ca-132b71e30e79/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 372612807ec8a09625942983a4318ea5cf13bd58b55643cc4c787d7ad1a0ebc5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:08:51,088 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:08:51,188 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bda22ac-45e2-4404-a9ca-132b71e30e79/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:08:51,199 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:08:51,199 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:08:51,238 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:08:51,238 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:08:51,239 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:08:51,239 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:08:51,239 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:08:51,239 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:08:51,239 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:08:51,239 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:08:51,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:08:51,241 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:08:51,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:08:51,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:08:51,241 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:08:51,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:08:51,242 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:08:51,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:08:51,242 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:08:51,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:08:51,243 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:08:51,243 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:08:51,243 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:08:51,243 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:08:51,243 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:08:51,244 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:08:51,244 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:08:51,244 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:08:51,244 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:08:51,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:08:51,244 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:08:51,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:08:51,245 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:08:51,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:08:51,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:08:51,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:08:51,245 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:08:51,245 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:08:51,245 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:08:51,245 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:08:51,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:08:51,246 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:08:51,246 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:08:51,246 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:08:51,246 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:08:51,246 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_0bda22ac-45e2-4404-a9ca-132b71e30e79/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 372612807ec8a09625942983a4318ea5cf13bd58b55643cc4c787d7ad1a0ebc5 [2024-11-28 05:08:51,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:08:51,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:08:51,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:08:51,550 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:08:51,551 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:08:51,552 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bda22ac-45e2-4404-a9ca-132b71e30e79/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-56.i [2024-11-28 05:08:54,554 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bda22ac-45e2-4404-a9ca-132b71e30e79/bin/uautomizer-verify-aQ6SnzHsRB/data/912cf916f/ad50d1a1a82d4a4581d564fa9a42d9a7/FLAG94ec4d226 [2024-11-28 05:08:54,837 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:08:54,838 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bda22ac-45e2-4404-a9ca-132b71e30e79/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-56.i [2024-11-28 05:08:54,848 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bda22ac-45e2-4404-a9ca-132b71e30e79/bin/uautomizer-verify-aQ6SnzHsRB/data/912cf916f/ad50d1a1a82d4a4581d564fa9a42d9a7/FLAG94ec4d226 [2024-11-28 05:08:54,863 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bda22ac-45e2-4404-a9ca-132b71e30e79/bin/uautomizer-verify-aQ6SnzHsRB/data/912cf916f/ad50d1a1a82d4a4581d564fa9a42d9a7 [2024-11-28 05:08:54,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:08:54,867 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:08:54,868 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:08:54,868 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:08:54,873 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:08:54,874 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:08:54" (1/1) ... [2024-11-28 05:08:54,875 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@367b5bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:54, skipping insertion in model container [2024-11-28 05:08:54,875 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:08:54" (1/1) ... [2024-11-28 05:08:54,901 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:08:55,091 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_0bda22ac-45e2-4404-a9ca-132b71e30e79/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-56.i[916,929] [2024-11-28 05:08:55,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:08:55,271 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:08:55,281 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_0bda22ac-45e2-4404-a9ca-132b71e30e79/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-56.i[916,929] [2024-11-28 05:08:55,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:08:55,401 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:08:55,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:55 WrapperNode [2024-11-28 05:08:55,403 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:08:55,404 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:08:55,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:08:55,405 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:08:55,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:55" (1/1) ... [2024-11-28 05:08:55,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:55" (1/1) ... [2024-11-28 05:08:55,493 INFO L138 Inliner]: procedures = 26, calls = 70, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 326 [2024-11-28 05:08:55,493 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:08:55,494 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:08:55,494 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:08:55,494 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:08:55,507 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:55" (1/1) ... [2024-11-28 05:08:55,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:55" (1/1) ... [2024-11-28 05:08:55,516 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:55" (1/1) ... [2024-11-28 05:08:55,555 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 05:08:55,556 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:55" (1/1) ... [2024-11-28 05:08:55,557 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:55" (1/1) ... [2024-11-28 05:08:55,579 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:55" (1/1) ... [2024-11-28 05:08:55,581 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:55" (1/1) ... [2024-11-28 05:08:55,586 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:55" (1/1) ... [2024-11-28 05:08:55,598 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:55" (1/1) ... [2024-11-28 05:08:55,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:55" (1/1) ... [2024-11-28 05:08:55,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:08:55,612 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:08:55,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:08:55,613 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:08:55,614 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:55" (1/1) ... [2024-11-28 05:08:55,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:08:55,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bda22ac-45e2-4404-a9ca-132b71e30e79/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:08:55,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bda22ac-45e2-4404-a9ca-132b71e30e79/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:08:55,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bda22ac-45e2-4404-a9ca-132b71e30e79/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:08:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:08:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 05:08:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 05:08:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:08:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:08:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:08:55,797 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:08:55,800 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:08:56,559 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-28 05:08:56,559 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:08:56,572 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:08:56,572 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 05:08:56,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:08:56 BoogieIcfgContainer [2024-11-28 05:08:56,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:08:56,579 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:08:56,579 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:08:56,585 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:08:56,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:08:54" (1/3) ... [2024-11-28 05:08:56,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164bd2bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:08:56, skipping insertion in model container [2024-11-28 05:08:56,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:55" (2/3) ... [2024-11-28 05:08:56,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164bd2bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:08:56, skipping insertion in model container [2024-11-28 05:08:56,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:08:56" (3/3) ... [2024-11-28 05:08:56,588 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-56.i [2024-11-28 05:08:56,607 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:08:56,609 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-56.i that has 2 procedures, 141 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 05:08:56,696 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:08:56,711 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;@43628933, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:08:56,712 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:08:56,716 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 81 states have (on average 1.4197530864197532) internal successors, (115), 82 states have internal predecessors, (115), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-28 05:08:56,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-11-28 05:08:56,739 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:56,740 INFO L218 NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:56,741 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:56,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:56,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1541183323, now seen corresponding path program 1 times [2024-11-28 05:08:56,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:56,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058555198] [2024-11-28 05:08:56,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:56,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:57,602 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2024-11-28 05:08:57,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:57,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058555198] [2024-11-28 05:08:57,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058555198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:57,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:08:57,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:08:57,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963252193] [2024-11-28 05:08:57,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:57,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:08:57,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:57,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:08:57,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:08:57,644 INFO L87 Difference]: Start difference. First operand has 141 states, 81 states have (on average 1.4197530864197532) internal successors, (115), 82 states have internal predecessors, (115), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2024-11-28 05:08:57,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:57,811 INFO L93 Difference]: Finished difference Result 369 states and 702 transitions. [2024-11-28 05:08:57,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:08:57,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) Word has length 348 [2024-11-28 05:08:57,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:57,833 INFO L225 Difference]: With dead ends: 369 [2024-11-28 05:08:57,834 INFO L226 Difference]: Without dead ends: 231 [2024-11-28 05:08:57,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:08:57,844 INFO L435 NwaCegarLoop]: 316 mSDtfsCounter, 145 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:08:57,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 525 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:08:57,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-28 05:08:57,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2024-11-28 05:08:57,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 130 states have (on average 1.376923076923077) internal successors, (179), 131 states have internal predecessors, (179), 95 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (95), 94 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-28 05:08:57,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 369 transitions. [2024-11-28 05:08:57,954 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 369 transitions. Word has length 348 [2024-11-28 05:08:57,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:57,955 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 369 transitions. [2024-11-28 05:08:57,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2024-11-28 05:08:57,956 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 369 transitions. [2024-11-28 05:08:57,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-28 05:08:57,964 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:57,967 INFO L218 NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:57,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:08:57,967 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:57,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:57,968 INFO L85 PathProgramCache]: Analyzing trace with hash 131679226, now seen corresponding path program 1 times [2024-11-28 05:08:57,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:57,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61448399] [2024-11-28 05:08:57,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:57,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:09:00,061 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2024-11-28 05:09:00,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:09:00,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61448399] [2024-11-28 05:09:00,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61448399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:09:00,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:09:00,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:09:00,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294182286] [2024-11-28 05:09:00,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:09:00,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:09:00,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:09:00,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:09:00,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:09:00,066 INFO L87 Difference]: Start difference. First operand 228 states and 369 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2024-11-28 05:09:00,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:09:00,287 INFO L93 Difference]: Finished difference Result 533 states and 845 transitions. [2024-11-28 05:09:00,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:09:00,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) Word has length 349 [2024-11-28 05:09:00,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:09:00,295 INFO L225 Difference]: With dead ends: 533 [2024-11-28 05:09:00,295 INFO L226 Difference]: Without dead ends: 308 [2024-11-28 05:09:00,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:09:00,298 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 71 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:09:00,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 675 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:09:00,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-28 05:09:00,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 282. [2024-11-28 05:09:00,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 174 states have (on average 1.3735632183908046) internal successors, (239), 177 states have internal predecessors, (239), 103 states have call successors, (103), 4 states have call predecessors, (103), 4 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-28 05:09:00,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 445 transitions. [2024-11-28 05:09:00,385 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 445 transitions. Word has length 349 [2024-11-28 05:09:00,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:09:00,390 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 445 transitions. [2024-11-28 05:09:00,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2024-11-28 05:09:00,390 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 445 transitions. [2024-11-28 05:09:00,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-28 05:09:00,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:09:00,402 INFO L218 NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:09:00,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:09:00,402 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:09:00,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:09:00,404 INFO L85 PathProgramCache]: Analyzing trace with hash -677667400, now seen corresponding path program 1 times [2024-11-28 05:09:00,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:09:00,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681185298] [2024-11-28 05:09:00,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:09:00,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:09:00,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:59,706 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2024-11-28 05:13:59,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:59,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681185298] [2024-11-28 05:13:59,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681185298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:59,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:59,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 05:13:59,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284441985] [2024-11-28 05:13:59,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:59,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:13:59,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:59,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:13:59,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:13:59,715 INFO L87 Difference]: Start difference. First operand 282 states and 445 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2024-11-28 05:14:05,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:14:05,329 INFO L93 Difference]: Finished difference Result 996 states and 1527 transitions. [2024-11-28 05:14:05,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 05:14:05,331 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) Word has length 349 [2024-11-28 05:14:05,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:14:05,345 INFO L225 Difference]: With dead ends: 996 [2024-11-28 05:14:05,345 INFO L226 Difference]: Without dead ends: 717 [2024-11-28 05:14:05,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2024-11-28 05:14:05,347 INFO L435 NwaCegarLoop]: 400 mSDtfsCounter, 344 mSDsluCounter, 2067 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:14:05,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 2467 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 05:14:05,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2024-11-28 05:14:05,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 555. [2024-11-28 05:14:05,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 338 states have (on average 1.349112426035503) internal successors, (456), 344 states have internal predecessors, (456), 206 states have call successors, (206), 10 states have call predecessors, (206), 10 states have return successors, (206), 200 states have call predecessors, (206), 206 states have call successors, (206) [2024-11-28 05:14:05,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 868 transitions. [2024-11-28 05:14:05,509 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 868 transitions. Word has length 349 [2024-11-28 05:14:05,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:14:05,510 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 868 transitions. [2024-11-28 05:14:05,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2024-11-28 05:14:05,510 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 868 transitions. [2024-11-28 05:14:05,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-28 05:14:05,516 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:05,516 INFO L218 NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:14:05,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:14:05,517 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:14:05,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:05,518 INFO L85 PathProgramCache]: Analyzing trace with hash 2390970, now seen corresponding path program 1 times [2024-11-28 05:14:05,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:14:05,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009122725] [2024-11-28 05:14:05,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:05,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:19:58,604 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2024-11-28 05:19:58,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:19:58,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009122725] [2024-11-28 05:19:58,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009122725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:19:58,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:19:58,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 05:19:58,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229569905] [2024-11-28 05:19:58,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:19:58,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:19:58,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:58,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:19:58,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:19:58,608 INFO L87 Difference]: Start difference. First operand 555 states and 868 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2024-11-28 05:20:03,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:20:03,107 INFO L93 Difference]: Finished difference Result 1234 states and 1885 transitions. [2024-11-28 05:20:03,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 05:20:03,109 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) Word has length 349 [2024-11-28 05:20:03,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:20:03,124 INFO L225 Difference]: With dead ends: 1234 [2024-11-28 05:20:03,127 INFO L226 Difference]: Without dead ends: 682 [2024-11-28 05:20:03,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2024-11-28 05:20:03,131 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 108 mSDsluCounter, 1573 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:20:03,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1792 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 05:20:03,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-28 05:20:03,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 647. [2024-11-28 05:20:03,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 416 states have (on average 1.3269230769230769) internal successors, (552), 426 states have internal predecessors, (552), 214 states have call successors, (214), 16 states have call predecessors, (214), 16 states have return successors, (214), 204 states have call predecessors, (214), 214 states have call successors, (214) [2024-11-28 05:20:03,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 980 transitions. [2024-11-28 05:20:03,381 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 980 transitions. Word has length 349 [2024-11-28 05:20:03,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:20:03,383 INFO L471 AbstractCegarLoop]: Abstraction has 647 states and 980 transitions. [2024-11-28 05:20:03,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2024-11-28 05:20:03,383 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 980 transitions. [2024-11-28 05:20:03,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-28 05:20:03,393 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:20:03,393 INFO L218 NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:20:03,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:20:03,394 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:20:03,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:03,395 INFO L85 PathProgramCache]: Analyzing trace with hash 832743804, now seen corresponding path program 1 times [2024-11-28 05:20:03,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:03,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425785547] [2024-11-28 05:20:03,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:03,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat