./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/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_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/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 64bit --witnessprinter.graph.data.programhash fa88b8fffb6d00fe351813dff04ff095de9add832c65b297aee5013953d8af16 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:13:03,082 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:13:03,188 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 02:13:03,196 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:13:03,199 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:13:03,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:13:03,253 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:13:03,253 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:13:03,253 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:13:03,253 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:13:03,254 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:13:03,254 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:13:03,254 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:13:03,254 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:13:03,254 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:13:03,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:13:03,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:13:03,256 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:13:03,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:13:03,257 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:13:03,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:13:03,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:13:03,258 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:13:03,258 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:13:03,258 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:13:03,258 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:13:03,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:13:03,259 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:13:03,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:13:03,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:03,260 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:13:03,260 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:13:03,261 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:13:03,261 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:13:03,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:03,261 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:13:03,262 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:13:03,262 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:13:03,262 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:13:03,262 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:13:03,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:13:03,262 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:13:03,262 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:13:03,263 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:13:03,263 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:13:03,263 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_ec91e2b7-1270-4fda-9407-e7642b3259d4/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa88b8fffb6d00fe351813dff04ff095de9add832c65b297aee5013953d8af16 [2024-11-28 02:13:03,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:13:03,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:13:03,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:13:03,632 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:13:03,633 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:13:03,634 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c [2024-11-28 02:13:06,865 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/data/e2914a2d2/09b59c63fa15410fb6958b659537232e/FLAG4582502e8 [2024-11-28 02:13:07,337 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:13:07,341 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c [2024-11-28 02:13:07,369 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/data/e2914a2d2/09b59c63fa15410fb6958b659537232e/FLAG4582502e8 [2024-11-28 02:13:07,397 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/data/e2914a2d2/09b59c63fa15410fb6958b659537232e [2024-11-28 02:13:07,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:13:07,403 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:13:07,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:13:07,406 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:13:07,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:13:07,418 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:13:07" (1/1) ... [2024-11-28 02:13:07,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c92d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:07, skipping insertion in model container [2024-11-28 02:13:07,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:13:07" (1/1) ... [2024-11-28 02:13:07,492 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:13:07,749 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_ec91e2b7-1270-4fda-9407-e7642b3259d4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c[1173,1186] [2024-11-28 02:13:08,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:13:08,177 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:13:08,189 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_ec91e2b7-1270-4fda-9407-e7642b3259d4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c[1173,1186] [2024-11-28 02:13:08,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:13:08,431 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:13:08,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:08 WrapperNode [2024-11-28 02:13:08,434 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:13:08,435 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:13:08,435 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:13:08,435 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:13:08,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:08" (1/1) ... [2024-11-28 02:13:08,527 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:08" (1/1) ... [2024-11-28 02:13:09,268 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3501 [2024-11-28 02:13:09,268 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:13:09,270 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:13:09,271 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:13:09,271 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:13:09,283 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:08" (1/1) ... [2024-11-28 02:13:09,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:08" (1/1) ... [2024-11-28 02:13:09,542 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:08" (1/1) ... [2024-11-28 02:13:09,704 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 02:13:09,705 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:08" (1/1) ... [2024-11-28 02:13:09,705 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:08" (1/1) ... [2024-11-28 02:13:09,873 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:08" (1/1) ... [2024-11-28 02:13:09,888 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:08" (1/1) ... [2024-11-28 02:13:09,908 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:08" (1/1) ... [2024-11-28 02:13:09,944 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:08" (1/1) ... [2024-11-28 02:13:09,968 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:08" (1/1) ... [2024-11-28 02:13:10,105 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:13:10,108 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:13:10,109 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:13:10,109 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:13:10,110 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:08" (1/1) ... [2024-11-28 02:13:10,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:10,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:10,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:10,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:13:10,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:13:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:13:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:13:10,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:13:10,630 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:13:10,637 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:13:16,774 INFO L? ?]: Removed 1945 outVars from TransFormulas that were not future-live. [2024-11-28 02:13:16,775 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:13:16,818 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:13:16,818 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:13:16,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:13:16 BoogieIcfgContainer [2024-11-28 02:13:16,819 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:13:16,822 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:13:16,826 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:13:16,832 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:13:16,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:13:07" (1/3) ... [2024-11-28 02:13:16,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71baebc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:13:16, skipping insertion in model container [2024-11-28 02:13:16,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:08" (2/3) ... [2024-11-28 02:13:16,840 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71baebc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:13:16, skipping insertion in model container [2024-11-28 02:13:16,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:13:16" (3/3) ... [2024-11-28 02:13:16,842 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bakery.2.prop1-func-interl.c [2024-11-28 02:13:16,860 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:13:16,863 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.bakery.2.prop1-func-interl.c that has 1 procedures, 1214 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:13:17,002 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:13:17,027 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;@5d9d1f1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:13:17,027 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:13:17,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 1214 states, 1212 states have (on average 1.4991749174917492) internal successors, (1817), 1213 states have internal predecessors, (1817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:17,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 02:13:17,055 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:17,056 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:17,057 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:17,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:17,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1809019544, now seen corresponding path program 1 times [2024-11-28 02:13:17,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:17,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853646385] [2024-11-28 02:13:17,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:17,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:18,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:13:18,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:18,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853646385] [2024-11-28 02:13:18,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853646385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:18,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:18,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:13:18,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909232129] [2024-11-28 02:13:18,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:18,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:13:18,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:18,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:13:18,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:13:18,442 INFO L87 Difference]: Start difference. First operand has 1214 states, 1212 states have (on average 1.4991749174917492) internal successors, (1817), 1213 states have internal predecessors, (1817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:18,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:18,681 INFO L93 Difference]: Finished difference Result 2349 states and 3519 transitions. [2024-11-28 02:13:18,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:13:18,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-28 02:13:18,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:18,709 INFO L225 Difference]: With dead ends: 2349 [2024-11-28 02:13:18,716 INFO L226 Difference]: Without dead ends: 1213 [2024-11-28 02:13:18,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:13:18,731 INFO L435 NwaCegarLoop]: 1811 mSDtfsCounter, 0 mSDsluCounter, 3616 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5427 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:18,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5427 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:13:18,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2024-11-28 02:13:18,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1213. [2024-11-28 02:13:18,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 1212 states have (on average 1.4975247524752475) internal successors, (1815), 1212 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:18,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1815 transitions. [2024-11-28 02:13:18,885 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1815 transitions. Word has length 77 [2024-11-28 02:13:18,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:18,886 INFO L471 AbstractCegarLoop]: Abstraction has 1213 states and 1815 transitions. [2024-11-28 02:13:18,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:18,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1815 transitions. [2024-11-28 02:13:18,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-28 02:13:18,891 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:18,891 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:18,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:13:18,892 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:18,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:18,893 INFO L85 PathProgramCache]: Analyzing trace with hash -243335395, now seen corresponding path program 1 times [2024-11-28 02:13:18,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:18,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151160285] [2024-11-28 02:13:18,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:18,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:19,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:13:19,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:19,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151160285] [2024-11-28 02:13:19,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151160285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:19,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:19,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:13:19,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228062257] [2024-11-28 02:13:19,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:19,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:13:19,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:19,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:13:19,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:13:19,334 INFO L87 Difference]: Start difference. First operand 1213 states and 1815 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:19,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:19,448 INFO L93 Difference]: Finished difference Result 2350 states and 3517 transitions. [2024-11-28 02:13:19,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:13:19,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-28 02:13:19,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:19,457 INFO L225 Difference]: With dead ends: 2350 [2024-11-28 02:13:19,458 INFO L226 Difference]: Without dead ends: 1215 [2024-11-28 02:13:19,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:13:19,465 INFO L435 NwaCegarLoop]: 1811 mSDtfsCounter, 0 mSDsluCounter, 3612 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5423 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:19,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5423 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:13:19,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2024-11-28 02:13:19,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 1215. [2024-11-28 02:13:19,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 1214 states have (on average 1.4967051070840198) internal successors, (1817), 1214 states have internal predecessors, (1817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:19,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1817 transitions. [2024-11-28 02:13:19,502 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1817 transitions. Word has length 78 [2024-11-28 02:13:19,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:19,503 INFO L471 AbstractCegarLoop]: Abstraction has 1215 states and 1817 transitions. [2024-11-28 02:13:19,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:19,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1817 transitions. [2024-11-28 02:13:19,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 02:13:19,506 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:19,506 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:19,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:13:19,506 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:19,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:19,507 INFO L85 PathProgramCache]: Analyzing trace with hash -51428127, now seen corresponding path program 1 times [2024-11-28 02:13:19,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:19,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470488536] [2024-11-28 02:13:19,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:19,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:20,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:13:20,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:20,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470488536] [2024-11-28 02:13:20,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470488536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:20,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:20,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:13:20,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970487010] [2024-11-28 02:13:20,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:20,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:13:20,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:20,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:13:20,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:13:20,079 INFO L87 Difference]: Start difference. First operand 1215 states and 1817 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:20,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:20,198 INFO L93 Difference]: Finished difference Result 2354 states and 3521 transitions. [2024-11-28 02:13:20,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:13:20,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-28 02:13:20,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:20,206 INFO L225 Difference]: With dead ends: 2354 [2024-11-28 02:13:20,207 INFO L226 Difference]: Without dead ends: 1217 [2024-11-28 02:13:20,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:13:20,210 INFO L435 NwaCegarLoop]: 1811 mSDtfsCounter, 0 mSDsluCounter, 3606 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5417 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:20,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5417 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:13:20,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2024-11-28 02:13:20,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1217. [2024-11-28 02:13:20,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 1216 states have (on average 1.495888157894737) internal successors, (1819), 1216 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:20,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1819 transitions. [2024-11-28 02:13:20,251 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1819 transitions. Word has length 79 [2024-11-28 02:13:20,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:20,251 INFO L471 AbstractCegarLoop]: Abstraction has 1217 states and 1819 transitions. [2024-11-28 02:13:20,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:20,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1819 transitions. [2024-11-28 02:13:20,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 02:13:20,254 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:20,254 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:20,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:13:20,255 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:20,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:20,255 INFO L85 PathProgramCache]: Analyzing trace with hash -685384668, now seen corresponding path program 1 times [2024-11-28 02:13:20,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:20,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91040013] [2024-11-28 02:13:20,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:20,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:20,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:13:20,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:20,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91040013] [2024-11-28 02:13:20,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91040013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:20,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:20,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:13:20,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606395849] [2024-11-28 02:13:20,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:20,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:13:20,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:20,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:13:20,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:13:20,533 INFO L87 Difference]: Start difference. First operand 1217 states and 1819 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:20,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:20,635 INFO L93 Difference]: Finished difference Result 2364 states and 3533 transitions. [2024-11-28 02:13:20,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:13:20,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-28 02:13:20,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:20,646 INFO L225 Difference]: With dead ends: 2364 [2024-11-28 02:13:20,646 INFO L226 Difference]: Without dead ends: 1225 [2024-11-28 02:13:20,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:13:20,649 INFO L435 NwaCegarLoop]: 1811 mSDtfsCounter, 3 mSDsluCounter, 3606 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5417 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:20,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5417 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:13:20,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2024-11-28 02:13:20,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1221. [2024-11-28 02:13:20,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1221 states, 1220 states have (on average 1.4959016393442623) internal successors, (1825), 1220 states have internal predecessors, (1825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:20,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1825 transitions. [2024-11-28 02:13:20,691 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1825 transitions. Word has length 80 [2024-11-28 02:13:20,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:20,693 INFO L471 AbstractCegarLoop]: Abstraction has 1221 states and 1825 transitions. [2024-11-28 02:13:20,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:20,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1825 transitions. [2024-11-28 02:13:20,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 02:13:20,699 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:20,699 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:20,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:13:20,699 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:20,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:20,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1342105434, now seen corresponding path program 1 times [2024-11-28 02:13:20,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:20,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714157836] [2024-11-28 02:13:20,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:20,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:21,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:13:21,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:21,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714157836] [2024-11-28 02:13:21,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714157836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:21,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:21,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:13:21,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992300793] [2024-11-28 02:13:21,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:21,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:13:21,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:21,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:13:21,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:13:21,200 INFO L87 Difference]: Start difference. First operand 1221 states and 1825 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:23,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:23,476 INFO L93 Difference]: Finished difference Result 3491 states and 5219 transitions. [2024-11-28 02:13:23,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:13:23,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-28 02:13:23,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:23,486 INFO L225 Difference]: With dead ends: 3491 [2024-11-28 02:13:23,486 INFO L226 Difference]: Without dead ends: 2348 [2024-11-28 02:13:23,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:13:23,491 INFO L435 NwaCegarLoop]: 1397 mSDtfsCounter, 1727 mSDsluCounter, 4086 mSDsCounter, 0 mSdLazyCounter, 1654 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1727 SdHoareTripleChecker+Valid, 5483 SdHoareTripleChecker+Invalid, 1655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:23,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1727 Valid, 5483 Invalid, 1655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1654 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 02:13:23,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2348 states. [2024-11-28 02:13:23,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2348 to 1276. [2024-11-28 02:13:23,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1275 states have (on average 1.4949019607843137) internal successors, (1906), 1275 states have internal predecessors, (1906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:23,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1906 transitions. [2024-11-28 02:13:23,545 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1906 transitions. Word has length 81 [2024-11-28 02:13:23,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:23,545 INFO L471 AbstractCegarLoop]: Abstraction has 1276 states and 1906 transitions. [2024-11-28 02:13:23,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:23,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1906 transitions. [2024-11-28 02:13:23,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-28 02:13:23,550 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:23,551 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:23,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:13:23,551 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:23,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:23,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1110419865, now seen corresponding path program 1 times [2024-11-28 02:13:23,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:23,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074710644] [2024-11-28 02:13:23,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:23,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:23,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:13:23,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:23,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074710644] [2024-11-28 02:13:23,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074710644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:23,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:23,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:13:23,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339893186] [2024-11-28 02:13:23,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:23,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:13:23,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:23,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:13:23,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:13:23,954 INFO L87 Difference]: Start difference. First operand 1276 states and 1906 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:25,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:25,406 INFO L93 Difference]: Finished difference Result 2419 states and 3615 transitions. [2024-11-28 02:13:25,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:13:25,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-28 02:13:25,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:25,415 INFO L225 Difference]: With dead ends: 2419 [2024-11-28 02:13:25,415 INFO L226 Difference]: Without dead ends: 1276 [2024-11-28 02:13:25,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:13:25,419 INFO L435 NwaCegarLoop]: 1387 mSDtfsCounter, 1741 mSDsluCounter, 2763 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1741 SdHoareTripleChecker+Valid, 4150 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:25,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1741 Valid, 4150 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 02:13:25,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2024-11-28 02:13:25,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1276. [2024-11-28 02:13:25,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1275 states have (on average 1.4917647058823529) internal successors, (1902), 1275 states have internal predecessors, (1902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:25,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1902 transitions. [2024-11-28 02:13:25,461 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1902 transitions. Word has length 82 [2024-11-28 02:13:25,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:25,461 INFO L471 AbstractCegarLoop]: Abstraction has 1276 states and 1902 transitions. [2024-11-28 02:13:25,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:25,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1902 transitions. [2024-11-28 02:13:25,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-28 02:13:25,463 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:25,463 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:25,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:13:25,463 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:25,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:25,464 INFO L85 PathProgramCache]: Analyzing trace with hash 256069307, now seen corresponding path program 1 times [2024-11-28 02:13:25,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:25,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474651751] [2024-11-28 02:13:25,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:25,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:13:25,562 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:13:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:13:25,716 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:13:25,717 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:13:25,718 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:13:25,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:13:25,725 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:25,841 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:13:25,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:13:25 BoogieIcfgContainer [2024-11-28 02:13:25,848 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:13:25,849 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:13:25,849 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:13:25,849 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:13:25,850 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:13:16" (3/4) ... [2024-11-28 02:13:25,853 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:13:25,854 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:13:25,855 INFO L158 Benchmark]: Toolchain (without parser) took 18452.23ms. Allocated memory was 117.4MB in the beginning and 394.3MB in the end (delta: 276.8MB). Free memory was 91.4MB in the beginning and 188.4MB in the end (delta: -97.0MB). Peak memory consumption was 185.0MB. Max. memory is 16.1GB. [2024-11-28 02:13:25,856 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 74.4MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:13:25,856 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1028.97ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 42.4MB in the end (delta: 48.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-28 02:13:25,856 INFO L158 Benchmark]: Boogie Procedure Inliner took 834.06ms. Allocated memory was 117.4MB in the beginning and 310.4MB in the end (delta: 192.9MB). Free memory was 42.4MB in the beginning and 225.1MB in the end (delta: -182.7MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2024-11-28 02:13:25,857 INFO L158 Benchmark]: Boogie Preprocessor took 836.45ms. Allocated memory was 310.4MB in the beginning and 285.2MB in the end (delta: -25.2MB). Free memory was 225.1MB in the beginning and 181.3MB in the end (delta: 43.8MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2024-11-28 02:13:25,857 INFO L158 Benchmark]: RCFGBuilder took 6710.76ms. Allocated memory was 285.2MB in the beginning and 394.3MB in the end (delta: 109.1MB). Free memory was 181.3MB in the beginning and 94.4MB in the end (delta: 86.9MB). Peak memory consumption was 218.5MB. Max. memory is 16.1GB. [2024-11-28 02:13:25,857 INFO L158 Benchmark]: TraceAbstraction took 9026.39ms. Allocated memory is still 394.3MB. Free memory was 94.4MB in the beginning and 188.4MB in the end (delta: -94.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:13:25,859 INFO L158 Benchmark]: Witness Printer took 5.01ms. Allocated memory is still 394.3MB. Free memory was 188.4MB in the beginning and 188.4MB in the end (delta: 33.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:13:25,863 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 74.4MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1028.97ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 42.4MB in the end (delta: 48.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 834.06ms. Allocated memory was 117.4MB in the beginning and 310.4MB in the end (delta: 192.9MB). Free memory was 42.4MB in the beginning and 225.1MB in the end (delta: -182.7MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 836.45ms. Allocated memory was 310.4MB in the beginning and 285.2MB in the end (delta: -25.2MB). Free memory was 225.1MB in the beginning and 181.3MB in the end (delta: 43.8MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. * RCFGBuilder took 6710.76ms. Allocated memory was 285.2MB in the beginning and 394.3MB in the end (delta: 109.1MB). Free memory was 181.3MB in the beginning and 94.4MB in the end (delta: 86.9MB). Peak memory consumption was 218.5MB. Max. memory is 16.1GB. * TraceAbstraction took 9026.39ms. Allocated memory is still 394.3MB. Free memory was 94.4MB in the beginning and 188.4MB in the end (delta: -94.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.01ms. Allocated memory is still 394.3MB. Free memory was 188.4MB in the beginning and 188.4MB in the end (delta: 33.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 172, overapproximation of bitwiseAnd at line 174. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L30] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L32] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L33] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L35] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L36] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L38] const SORT_2 var_5 = 0; [L39] const SORT_1 var_22 = 0; [L40] const SORT_4 var_45 = 1; [L41] const SORT_4 var_46 = 0; [L42] const SORT_2 var_54 = 0; [L43] const SORT_2 var_56 = 1; [L44] const SORT_3 var_66 = 0; [L45] const SORT_4 var_153 = 2; [L46] const SORT_2 var_165 = 2; [L47] const SORT_4 var_167 = 6; [L49] SORT_1 input_53; [L50] SORT_1 input_55; [L51] SORT_1 input_60; [L52] SORT_1 input_61; [L53] SORT_1 input_65; [L54] SORT_1 input_73; [L55] SORT_1 input_80; [L56] SORT_1 input_84; [L57] SORT_1 input_85; [L58] SORT_1 input_97; [L59] SORT_1 input_101; [L60] SORT_1 input_102; [L61] SORT_1 input_121; [L62] SORT_1 input_124; [L63] SORT_1 input_140; [L64] SORT_1 input_143; [L66] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L66] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L67] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L67] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L68] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L68] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L69] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L69] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L70] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L70] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L71] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L71] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L72] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L72] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L73] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L73] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L74] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L74] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L75] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L76] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L77] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L78] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L79] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L80] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L81] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L82] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L83] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_153=2, var_165=2, var_167=6, var_22=0, var_45=1, var_46=0, var_54=0, var_56=1, var_5=0, var_66=0] [L84] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] SORT_2 init_7_arg_1 = var_5; [L87] state_6 = init_7_arg_1 [L88] SORT_2 init_9_arg_1 = var_5; [L89] state_8 = init_9_arg_1 [L90] SORT_2 init_11_arg_1 = var_5; [L91] state_10 = init_11_arg_1 [L92] SORT_2 init_13_arg_1 = var_5; [L93] state_12 = init_13_arg_1 [L94] SORT_2 init_15_arg_1 = var_5; [L95] state_14 = init_15_arg_1 [L96] SORT_2 init_17_arg_1 = var_5; [L97] state_16 = init_17_arg_1 [L98] SORT_2 init_19_arg_1 = var_5; [L99] state_18 = init_19_arg_1 [L100] SORT_2 init_21_arg_1 = var_5; [L101] state_20 = init_21_arg_1 [L102] SORT_1 init_24_arg_1 = var_22; [L103] state_23 = init_24_arg_1 [L104] SORT_1 init_26_arg_1 = var_22; [L105] state_25 = init_26_arg_1 [L106] SORT_1 init_28_arg_1 = var_22; [L107] state_27 = init_28_arg_1 [L108] SORT_1 init_30_arg_1 = var_22; [L109] state_29 = init_30_arg_1 [L110] SORT_1 init_32_arg_1 = var_22; [L111] state_31 = init_32_arg_1 [L112] SORT_1 init_34_arg_1 = var_22; [L113] state_33 = init_34_arg_1 [L114] SORT_1 init_36_arg_1 = var_22; [L115] state_35 = init_36_arg_1 [L116] SORT_1 init_38_arg_1 = var_22; [L117] state_37 = init_38_arg_1 [L118] SORT_1 init_40_arg_1 = var_22; [L119] state_39 = init_40_arg_1 [L120] SORT_1 init_42_arg_1 = var_22; [L121] state_41 = init_42_arg_1 [L122] SORT_1 init_44_arg_1 = var_22; [L123] state_43 = init_44_arg_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L126] input_53 = __VERIFIER_nondet_uchar() [L127] EXPR input_53 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L127] input_53 = input_53 & mask_SORT_1 [L128] input_55 = __VERIFIER_nondet_uchar() [L129] EXPR input_55 & mask_SORT_1 VAL [input_53=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L129] input_55 = input_55 & mask_SORT_1 [L130] input_60 = __VERIFIER_nondet_uchar() [L131] EXPR input_60 & mask_SORT_1 VAL [input_53=0, input_55=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L131] input_60 = input_60 & mask_SORT_1 [L132] input_61 = __VERIFIER_nondet_uchar() [L133] EXPR input_61 & mask_SORT_1 VAL [input_53=0, input_55=0, input_60=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L133] input_61 = input_61 & mask_SORT_1 [L134] input_65 = __VERIFIER_nondet_uchar() [L135] EXPR input_65 & mask_SORT_1 VAL [input_53=0, input_55=0, input_60=0, input_61=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L135] input_65 = input_65 & mask_SORT_1 [L136] input_73 = __VERIFIER_nondet_uchar() [L137] EXPR input_73 & mask_SORT_1 VAL [input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L137] input_73 = input_73 & mask_SORT_1 [L138] input_80 = __VERIFIER_nondet_uchar() [L139] EXPR input_80 & mask_SORT_1 VAL [input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L139] input_80 = input_80 & mask_SORT_1 [L140] input_84 = __VERIFIER_nondet_uchar() [L141] EXPR input_84 & mask_SORT_1 VAL [input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L141] input_84 = input_84 & mask_SORT_1 [L142] input_85 = __VERIFIER_nondet_uchar() [L143] EXPR input_85 & mask_SORT_1 VAL [input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L143] input_85 = input_85 & mask_SORT_1 [L144] input_97 = __VERIFIER_nondet_uchar() [L145] EXPR input_97 & mask_SORT_1 VAL [input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L145] input_97 = input_97 & mask_SORT_1 [L146] input_101 = __VERIFIER_nondet_uchar() [L147] EXPR input_101 & mask_SORT_1 VAL [input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L147] input_101 = input_101 & mask_SORT_1 [L148] input_102 = __VERIFIER_nondet_uchar() [L149] EXPR input_102 & mask_SORT_1 VAL [input_101=0, input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L149] input_102 = input_102 & mask_SORT_1 [L150] input_121 = __VERIFIER_nondet_uchar() [L151] input_124 = __VERIFIER_nondet_uchar() [L152] input_140 = __VERIFIER_nondet_uchar() [L153] input_143 = __VERIFIER_nondet_uchar() [L156] SORT_1 var_47_arg_0 = state_31; [L157] SORT_4 var_47_arg_1 = var_45; [L158] SORT_4 var_47_arg_2 = var_46; [L159] SORT_4 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L160] SORT_1 var_48_arg_0 = state_41; [L161] SORT_4 var_48_arg_1 = var_45; [L162] SORT_4 var_48_arg_2 = var_46; [L163] SORT_4 var_48 = var_48_arg_0 ? var_48_arg_1 : var_48_arg_2; [L164] SORT_4 var_49_arg_0 = var_47; [L165] SORT_4 var_49_arg_1 = var_48; [L166] SORT_4 var_49 = var_49_arg_0 + var_49_arg_1; VAL [input_101=0, input_102=0, input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_49=0, var_54=0, var_56=1, var_66=0] [L167] EXPR var_49 & mask_SORT_4 VAL [input_101=0, input_102=0, input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L167] var_49 = var_49 & mask_SORT_4 [L168] SORT_4 var_50_arg_0 = var_49; [L169] SORT_4 var_50_arg_1 = var_45; [L170] SORT_1 var_50 = var_50_arg_0 <= var_50_arg_1; [L171] SORT_1 var_51_arg_0 = ~state_43; VAL [input_101=0, input_102=0, input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_50=1, var_51_arg_0=-1, var_54=0, var_56=1, var_66=0] [L172] EXPR var_51_arg_0 & mask_SORT_1 VAL [input_101=0, input_102=0, input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_50=1, var_54=0, var_56=1, var_66=0] [L172] var_51_arg_0 = var_51_arg_0 & mask_SORT_1 [L173] SORT_1 var_51_arg_1 = ~var_50; VAL [input_101=0, input_102=0, input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_51_arg_0=1, var_51_arg_1=-2, var_54=0, var_56=1, var_66=0] [L174] EXPR var_51_arg_1 & mask_SORT_1 VAL [input_101=0, input_102=0, input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_51_arg_0=1, var_54=0, var_56=1, var_66=0] [L174] var_51_arg_1 = var_51_arg_1 & mask_SORT_1 [L175] EXPR var_51_arg_0 & var_51_arg_1 VAL [input_101=0, input_102=0, input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L175] SORT_1 var_51 = var_51_arg_0 & var_51_arg_1; [L176] EXPR var_51 & mask_SORT_1 VAL [input_101=0, input_102=0, input_53=0, input_55=0, input_60=0, input_61=0, input_65=0, input_73=0, input_80=0, input_84=0, input_85=0, input_97=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_6=0, state_8=0, var_153=2, var_165=2, var_167=6, var_45=1, var_46=0, var_54=0, var_56=1, var_66=0] [L176] var_51 = var_51 & mask_SORT_1 [L177] SORT_1 bad_52_arg_0 = var_51; [L178] CALL __VERIFIER_assert(!(bad_52_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1214 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3471 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3471 mSDsluCounter, 31317 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21289 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2996 IncrementalHoareTripleChecker+Invalid, 2998 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 10028 mSDtfsCounter, 2996 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1276occurred in iteration=5, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 1076 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 560 NumberOfCodeBlocks, 560 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 471 ConstructedInterpolants, 0 QuantifiedInterpolants, 1082 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 02:13:25,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/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_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/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 64bit --witnessprinter.graph.data.programhash fa88b8fffb6d00fe351813dff04ff095de9add832c65b297aee5013953d8af16 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:13:28,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:13:29,084 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-28 02:13:29,099 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:13:29,099 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:13:29,167 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:13:29,168 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:13:29,168 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:13:29,168 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:13:29,169 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:13:29,169 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:13:29,169 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:13:29,169 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:13:29,169 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:13:29,169 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:13:29,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:13:29,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:13:29,174 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:13:29,174 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:13:29,174 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:13:29,174 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:13:29,174 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:13:29,175 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:13:29,175 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:13:29,175 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:13:29,175 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:13:29,175 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:13:29,175 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:13:29,175 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:13:29,175 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:13:29,175 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:13:29,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:29,176 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:13:29,176 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:13:29,176 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:13:29,176 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:13:29,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:29,176 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:13:29,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:13:29,176 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:13:29,176 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:13:29,177 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:13:29,177 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:13:29,177 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:13:29,177 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:13:29,177 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:13:29,177 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:13:29,177 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_ec91e2b7-1270-4fda-9407-e7642b3259d4/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa88b8fffb6d00fe351813dff04ff095de9add832c65b297aee5013953d8af16 [2024-11-28 02:13:29,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:13:29,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:13:29,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:13:29,535 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:13:29,535 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:13:29,537 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c [2024-11-28 02:13:32,647 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/data/44151de70/f6a371f65b5742078329225daca6c763/FLAGacf496bf9 [2024-11-28 02:13:33,116 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:13:33,117 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c [2024-11-28 02:13:33,142 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/data/44151de70/f6a371f65b5742078329225daca6c763/FLAGacf496bf9 [2024-11-28 02:13:33,169 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/data/44151de70/f6a371f65b5742078329225daca6c763 [2024-11-28 02:13:33,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:13:33,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:13:33,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:13:33,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:13:33,183 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:13:33,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:13:33" (1/1) ... [2024-11-28 02:13:33,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1be50740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:33, skipping insertion in model container [2024-11-28 02:13:33,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:13:33" (1/1) ... [2024-11-28 02:13:33,254 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:13:33,487 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_ec91e2b7-1270-4fda-9407-e7642b3259d4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c[1173,1186] [2024-11-28 02:13:33,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:13:33,825 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:13:33,846 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_ec91e2b7-1270-4fda-9407-e7642b3259d4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.2.prop1-func-interl.c[1173,1186] [2024-11-28 02:13:34,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:13:34,086 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:13:34,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:34 WrapperNode [2024-11-28 02:13:34,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:13:34,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:13:34,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:13:34,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:13:34,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:34" (1/1) ... [2024-11-28 02:13:34,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:34" (1/1) ... [2024-11-28 02:13:34,248 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1093 [2024-11-28 02:13:34,249 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:13:34,251 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:13:34,251 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:13:34,251 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:13:34,261 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:34" (1/1) ... [2024-11-28 02:13:34,261 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:34" (1/1) ... [2024-11-28 02:13:34,292 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:34" (1/1) ... [2024-11-28 02:13:34,344 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 02:13:34,344 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:34" (1/1) ... [2024-11-28 02:13:34,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:34" (1/1) ... [2024-11-28 02:13:34,389 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:34" (1/1) ... [2024-11-28 02:13:34,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:34" (1/1) ... [2024-11-28 02:13:34,395 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:34" (1/1) ... [2024-11-28 02:13:34,399 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:34" (1/1) ... [2024-11-28 02:13:34,403 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:34" (1/1) ... [2024-11-28 02:13:34,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:13:34,412 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:13:34,412 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:13:34,412 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:13:34,413 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:34" (1/1) ... [2024-11-28 02:13:34,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:34,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:34,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:34,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:13:34,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:13:34,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:13:34,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:13:34,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:13:34,886 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:13:34,888 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:13:36,581 INFO L? ?]: Removed 65 outVars from TransFormulas that were not future-live. [2024-11-28 02:13:36,581 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:13:36,597 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:13:36,598 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:13:36,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:13:36 BoogieIcfgContainer [2024-11-28 02:13:36,598 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:13:36,601 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:13:36,601 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:13:36,607 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:13:36,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:13:33" (1/3) ... [2024-11-28 02:13:36,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530bd609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:13:36, skipping insertion in model container [2024-11-28 02:13:36,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:34" (2/3) ... [2024-11-28 02:13:36,610 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530bd609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:13:36, skipping insertion in model container [2024-11-28 02:13:36,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:13:36" (3/3) ... [2024-11-28 02:13:36,612 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bakery.2.prop1-func-interl.c [2024-11-28 02:13:36,631 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:13:36,633 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.bakery.2.prop1-func-interl.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:13:36,703 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:13:36,722 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;@34a7de60, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:13:36,722 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:13:36,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:36,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-28 02:13:36,734 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:36,735 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 02:13:36,735 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:36,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:36,742 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-28 02:13:36,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:13:36,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1458608825] [2024-11-28 02:13:36,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:36,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:13:36,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:36,758 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:13:36,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:13:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:37,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 02:13:37,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:37,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:13:37,472 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:13:37,473 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:13:37,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458608825] [2024-11-28 02:13:37,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458608825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:37,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:37,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:13:37,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500405933] [2024-11-28 02:13:37,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:37,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:13:37,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:13:37,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:13:37,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:13:37,511 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:37,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:37,696 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-28 02:13:37,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:13:37,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-28 02:13:37,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:37,710 INFO L225 Difference]: With dead ends: 18 [2024-11-28 02:13:37,710 INFO L226 Difference]: Without dead ends: 10 [2024-11-28 02:13:37,714 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:13:37,720 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:37,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:13:37,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-28 02:13:37,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-28 02:13:37,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:37,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-28 02:13:37,760 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-28 02:13:37,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:37,760 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-28 02:13:37,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:37,761 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-28 02:13:37,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 02:13:37,762 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:37,762 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:37,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:13:37,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:13:37,963 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:37,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:37,964 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-28 02:13:37,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:13:37,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1294324046] [2024-11-28 02:13:37,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:37,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:13:37,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:37,969 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:13:37,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec91e2b7-1270-4fda-9407-e7642b3259d4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:13:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:38,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-28 02:13:38,548 INFO L279 TraceCheckSpWp]: Computing forward predicates...