./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_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_13d98ce2-f3a2-4967-bcd5-d7116240cf45/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13d98ce2-f3a2-4967-bcd5-d7116240cf45/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_13d98ce2-f3a2-4967-bcd5-d7116240cf45/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13d98ce2-f3a2-4967-bcd5-d7116240cf45/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-56.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13d98ce2-f3a2-4967-bcd5-d7116240cf45/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_13d98ce2-f3a2-4967-bcd5-d7116240cf45/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 33f84b4755dee68719d11e9cb73eec944c511a29b8d761889703c1d9d3eed548 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:58:28,769 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:58:28,876 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13d98ce2-f3a2-4967-bcd5-d7116240cf45/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:58:28,882 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:58:28,882 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:58:28,921 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:58:28,922 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:58:28,922 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:58:28,923 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:58:28,923 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:58:28,924 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:58:28,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:58:28,925 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:58:28,925 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:58:28,926 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:58:28,926 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:58:28,926 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:58:28,927 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:58:28,927 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:58:28,927 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:58:28,927 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:58:28,927 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:58:28,928 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:58:28,928 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:58:28,928 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:58:28,928 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:58:28,928 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:58:28,928 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:58:28,928 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:58:28,928 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:58:28,929 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:58:28,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:58:28,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:58:28,930 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:58:28,930 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:58:28,930 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:58:28,930 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:58:28,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:58:28,930 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:58:28,931 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:58:28,931 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:58:28,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:58:28,931 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:58:28,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:58:28,931 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:58:28,931 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:58:28,931 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:58:28,931 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:58:28,932 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_13d98ce2-f3a2-4967-bcd5-d7116240cf45/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 -> 33f84b4755dee68719d11e9cb73eec944c511a29b8d761889703c1d9d3eed548 [2024-11-28 04:58:29,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:58:29,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:58:29,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:58:29,258 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:58:29,259 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:58:29,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13d98ce2-f3a2-4967-bcd5-d7116240cf45/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-56.i [2024-11-28 04:58:32,403 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13d98ce2-f3a2-4967-bcd5-d7116240cf45/bin/uautomizer-verify-aQ6SnzHsRB/data/e25f2563e/3801f235d1f74f9b805ee2bffadd8aec/FLAGd1a374d0b [2024-11-28 04:58:32,733 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:58:32,734 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13d98ce2-f3a2-4967-bcd5-d7116240cf45/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-56.i [2024-11-28 04:58:32,750 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13d98ce2-f3a2-4967-bcd5-d7116240cf45/bin/uautomizer-verify-aQ6SnzHsRB/data/e25f2563e/3801f235d1f74f9b805ee2bffadd8aec/FLAGd1a374d0b [2024-11-28 04:58:32,974 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13d98ce2-f3a2-4967-bcd5-d7116240cf45/bin/uautomizer-verify-aQ6SnzHsRB/data/e25f2563e/3801f235d1f74f9b805ee2bffadd8aec [2024-11-28 04:58:32,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:58:32,981 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:58:32,983 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:58:32,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:58:32,989 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:58:32,990 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:58:32" (1/1) ... [2024-11-28 04:58:32,991 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2186c077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:32, skipping insertion in model container [2024-11-28 04:58:32,993 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:58:32" (1/1) ... [2024-11-28 04:58:33,025 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:58:33,200 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_13d98ce2-f3a2-4967-bcd5-d7116240cf45/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-56.i[919,932] [2024-11-28 04:58:33,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:58:33,311 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:58:33,324 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_13d98ce2-f3a2-4967-bcd5-d7116240cf45/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-56.i[919,932] [2024-11-28 04:58:33,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:58:33,390 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:58:33,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:33 WrapperNode [2024-11-28 04:58:33,390 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:58:33,391 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:58:33,392 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:58:33,392 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:58:33,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:33" (1/1) ... [2024-11-28 04:58:33,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:33" (1/1) ... [2024-11-28 04:58:33,479 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 218 [2024-11-28 04:58:33,480 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:58:33,480 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:58:33,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:58:33,481 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:58:33,490 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:33" (1/1) ... [2024-11-28 04:58:33,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:33" (1/1) ... [2024-11-28 04:58:33,495 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:33" (1/1) ... [2024-11-28 04:58:33,523 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:58:33,524 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:33" (1/1) ... [2024-11-28 04:58:33,524 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:33" (1/1) ... [2024-11-28 04:58:33,537 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:33" (1/1) ... [2024-11-28 04:58:33,539 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:33" (1/1) ... [2024-11-28 04:58:33,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:33" (1/1) ... [2024-11-28 04:58:33,546 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:33" (1/1) ... [2024-11-28 04:58:33,549 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:33" (1/1) ... [2024-11-28 04:58:33,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:58:33,556 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:58:33,557 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:58:33,557 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:58:33,558 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:33" (1/1) ... [2024-11-28 04:58:33,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:58:33,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13d98ce2-f3a2-4967-bcd5-d7116240cf45/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:58:33,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13d98ce2-f3a2-4967-bcd5-d7116240cf45/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:58:33,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13d98ce2-f3a2-4967-bcd5-d7116240cf45/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:58:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:58:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:58:33,628 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:58:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:58:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:58:33,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:58:33,742 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:58:33,745 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:58:34,382 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-28 04:58:34,383 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:58:34,399 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:58:34,399 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:58:34,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:58:34 BoogieIcfgContainer [2024-11-28 04:58:34,399 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:58:34,404 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:58:34,404 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:58:34,410 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:58:34,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:58:32" (1/3) ... [2024-11-28 04:58:34,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6240eb83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:58:34, skipping insertion in model container [2024-11-28 04:58:34,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:33" (2/3) ... [2024-11-28 04:58:34,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6240eb83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:58:34, skipping insertion in model container [2024-11-28 04:58:34,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:58:34" (3/3) ... [2024-11-28 04:58:34,413 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-56.i [2024-11-28 04:58:34,427 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:58:34,429 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-56.i that has 2 procedures, 98 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:58:34,493 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:58:34,508 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;@4d1fd85f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:58:34,508 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:58:34,512 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 62 states have internal predecessors, (85), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 04:58:34,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-28 04:58:34,532 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:34,533 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:34,533 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:34,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:34,539 INFO L85 PathProgramCache]: Analyzing trace with hash -2020869130, now seen corresponding path program 1 times [2024-11-28 04:58:34,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:34,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197914636] [2024-11-28 04:58:34,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:34,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:35,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked. [2024-11-28 04:58:35,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:35,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197914636] [2024-11-28 04:58:35,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197914636] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:58:35,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435015100] [2024-11-28 04:58:35,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:35,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:35,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13d98ce2-f3a2-4967-bcd5-d7116240cf45/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:58:35,007 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13d98ce2-f3a2-4967-bcd5-d7116240cf45/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:58:35,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13d98ce2-f3a2-4967-bcd5-d7116240cf45/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:58:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:35,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:58:35,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:58:35,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked. [2024-11-28 04:58:35,397 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:58:35,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435015100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:35,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:58:35,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:58:35,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608780288] [2024-11-28 04:58:35,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:35,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:58:35,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:35,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:58:35,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:58:35,429 INFO L87 Difference]: Start difference. First operand has 98 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 62 states have internal predecessors, (85), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-28 04:58:35,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:35,462 INFO L93 Difference]: Finished difference Result 189 states and 334 transitions. [2024-11-28 04:58:35,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:58:35,465 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 216 [2024-11-28 04:58:35,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:35,472 INFO L225 Difference]: With dead ends: 189 [2024-11-28 04:58:35,472 INFO L226 Difference]: Without dead ends: 94 [2024-11-28 04:58:35,476 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:58:35,479 INFO L435 NwaCegarLoop]: 146 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, 146 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:35,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:58:35,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-28 04:58:35,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-28 04:58:35,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 58 states have (on average 1.3448275862068966) internal successors, (78), 58 states have internal predecessors, (78), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 04:58:35,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 146 transitions. [2024-11-28 04:58:35,541 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 146 transitions. Word has length 216 [2024-11-28 04:58:35,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:35,541 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 146 transitions. [2024-11-28 04:58:35,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-28 04:58:35,542 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 146 transitions. [2024-11-28 04:58:35,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-28 04:58:35,549 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:35,551 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:35,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13d98ce2-f3a2-4967-bcd5-d7116240cf45/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:58:35,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13d98ce2-f3a2-4967-bcd5-d7116240cf45/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:58:35,752 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:35,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:35,753 INFO L85 PathProgramCache]: Analyzing trace with hash -997986242, now seen corresponding path program 1 times [2024-11-28 04:58:35,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:35,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829944996] [2024-11-28 04:58:35,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:35,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:38,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-28 04:58:38,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:38,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829944996] [2024-11-28 04:58:38,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829944996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:58:38,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:58:38,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:58:38,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866386940] [2024-11-28 04:58:38,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:38,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:58:38,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:38,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:58:38,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:58:38,027 INFO L87 Difference]: Start difference. First operand 94 states and 146 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 04:58:38,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:38,221 INFO L93 Difference]: Finished difference Result 254 states and 392 transitions. [2024-11-28 04:58:38,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:58:38,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 216 [2024-11-28 04:58:38,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:38,228 INFO L225 Difference]: With dead ends: 254 [2024-11-28 04:58:38,229 INFO L226 Difference]: Without dead ends: 163 [2024-11-28 04:58:38,230 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 04:58:38,231 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 129 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:38,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 474 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:58:38,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-28 04:58:38,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 135. [2024-11-28 04:58:38,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 94 states have (on average 1.4148936170212767) internal successors, (133), 95 states have internal predecessors, (133), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 04:58:38,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 209 transitions. [2024-11-28 04:58:38,258 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 209 transitions. Word has length 216 [2024-11-28 04:58:38,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:38,259 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 209 transitions. [2024-11-28 04:58:38,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 04:58:38,260 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 209 transitions. [2024-11-28 04:58:38,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-28 04:58:38,263 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:38,264 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:38,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:58:38,264 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:38,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:38,265 INFO L85 PathProgramCache]: Analyzing trace with hash -739820804, now seen corresponding path program 1 times [2024-11-28 04:58:38,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:38,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937482937] [2024-11-28 04:58:38,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:38,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:59,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-28 05:03:59,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:03:59,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937482937] [2024-11-28 05:03:59,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937482937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:03:59,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:03:59,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 05:03:59,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170093456] [2024-11-28 05:03:59,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:03:59,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 05:03:59,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:03:59,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 05:03:59,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-28 05:03:59,385 INFO L87 Difference]: Start difference. First operand 135 states and 209 transitions. Second operand has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 05:04:06,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:06,110 INFO L93 Difference]: Finished difference Result 377 states and 570 transitions. [2024-11-28 05:04:06,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 05:04:06,113 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 216 [2024-11-28 05:04:06,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:06,118 INFO L225 Difference]: With dead ends: 377 [2024-11-28 05:04:06,118 INFO L226 Difference]: Without dead ends: 245 [2024-11-28 05:04:06,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=190, Invalid=362, Unknown=0, NotChecked=0, Total=552 [2024-11-28 05:04:06,121 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 418 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:06,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 678 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-28 05:04:06,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-28 05:04:06,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 152. [2024-11-28 05:04:06,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 111 states have (on average 1.4144144144144144) internal successors, (157), 112 states have internal predecessors, (157), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 05:04:06,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 233 transitions. [2024-11-28 05:04:06,154 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 233 transitions. Word has length 216 [2024-11-28 05:04:06,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:06,155 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 233 transitions. [2024-11-28 05:04:06,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 05:04:06,155 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 233 transitions. [2024-11-28 05:04:06,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-28 05:04:06,159 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:06,159 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:04:06,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:04:06,160 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:06,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:06,161 INFO L85 PathProgramCache]: Analyzing trace with hash 271296446, now seen corresponding path program 1 times [2024-11-28 05:04:06,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:06,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750425657] [2024-11-28 05:04:06,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:06,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:16,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-28 05:10:16,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:10:16,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750425657] [2024-11-28 05:10:16,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750425657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:16,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:10:16,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 05:10:16,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589205123] [2024-11-28 05:10:16,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:16,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 05:10:16,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:10:16,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 05:10:16,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:10:16,754 INFO L87 Difference]: Start difference. First operand 152 states and 233 transitions. Second operand has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 05:10:22,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:22,025 INFO L93 Difference]: Finished difference Result 402 states and 605 transitions. [2024-11-28 05:10:22,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 05:10:22,027 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 216 [2024-11-28 05:10:22,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:22,030 INFO L225 Difference]: With dead ends: 402 [2024-11-28 05:10:22,031 INFO L226 Difference]: Without dead ends: 253 [2024-11-28 05:10:22,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2024-11-28 05:10:22,033 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 294 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:10:22,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 1074 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-28 05:10:22,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-28 05:10:22,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 152. [2024-11-28 05:10:22,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 111 states have (on average 1.4144144144144144) internal successors, (157), 112 states have internal predecessors, (157), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 05:10:22,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 233 transitions. [2024-11-28 05:10:22,068 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 233 transitions. Word has length 216 [2024-11-28 05:10:22,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:22,069 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 233 transitions. [2024-11-28 05:10:22,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 05:10:22,070 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 233 transitions. [2024-11-28 05:10:22,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-28 05:10:22,073 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:22,075 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:10:22,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:10:22,075 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:10:22,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:22,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1966798590, now seen corresponding path program 1 times [2024-11-28 05:10:22,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:10:22,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729323975] [2024-11-28 05:10:22,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:22,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:10:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:22,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-28 05:10:22,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:10:22,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729323975] [2024-11-28 05:10:22,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729323975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:22,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:10:22,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:10:22,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721702913] [2024-11-28 05:10:22,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:22,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:10:22,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:10:22,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:10:22,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:10:22,221 INFO L87 Difference]: Start difference. First operand 152 states and 233 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 05:10:22,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:22,290 INFO L93 Difference]: Finished difference Result 429 states and 659 transitions. [2024-11-28 05:10:22,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:10:22,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 216 [2024-11-28 05:10:22,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:22,304 INFO L225 Difference]: With dead ends: 429 [2024-11-28 05:10:22,305 INFO L226 Difference]: Without dead ends: 280 [2024-11-28 05:10:22,306 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 05:10:22,309 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 140 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:10:22,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 317 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:10:22,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-28 05:10:22,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 277. [2024-11-28 05:10:22,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 196 states have (on average 1.3877551020408163) internal successors, (272), 198 states have internal predecessors, (272), 76 states have call successors, (76), 4 states have call predecessors, (76), 4 states have return successors, (76), 74 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-28 05:10:22,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 424 transitions. [2024-11-28 05:10:22,412 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 424 transitions. Word has length 216 [2024-11-28 05:10:22,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:22,413 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 424 transitions. [2024-11-28 05:10:22,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-28 05:10:22,415 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 424 transitions. [2024-11-28 05:10:22,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-28 05:10:22,419 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:22,419 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:10:22,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:10:22,419 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:10:22,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:22,420 INFO L85 PathProgramCache]: Analyzing trace with hash -2014454484, now seen corresponding path program 1 times [2024-11-28 05:10:22,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:10:22,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640051699] [2024-11-28 05:10:22,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:22,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:10:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat