./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya --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 bee37cc3aa930a1b9dc8d03049770a16229b9136afc75c48614cf8a9ab0bb811 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:41:26,206 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:41:26,272 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 06:41:26,276 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:41:26,277 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:41:26,300 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:41:26,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:41:26,301 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:41:26,302 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:41:26,302 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:41:26,303 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:41:26,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:41:26,304 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:41:26,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:41:26,305 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:41:26,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:41:26,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:41:26,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:41:26,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:41:26,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:41:26,308 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:41:26,309 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:41:26,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:41:26,310 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:41:26,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:41:26,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:41:26,311 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:41:26,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:41:26,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:41:26,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:41:26,313 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:41:26,313 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:41:26,313 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:41:26,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:41:26,314 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:41:26,314 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:41:26,314 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:41:26,314 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:41:26,314 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:41:26,315 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bee37cc3aa930a1b9dc8d03049770a16229b9136afc75c48614cf8a9ab0bb811 [2023-11-29 06:41:26,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:41:26,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:41:26,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:41:26,565 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:41:26,565 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:41:26,566 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c [2023-11-29 06:41:29,368 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:41:29,550 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:41:29,550 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c [2023-11-29 06:41:29,560 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/data/ba8ca2808/b2ea319ab8464a1b95e07c71dba5befe/FLAGdc615c390 [2023-11-29 06:41:29,575 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/data/ba8ca2808/b2ea319ab8464a1b95e07c71dba5befe [2023-11-29 06:41:29,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:41:29,579 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:41:29,581 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:41:29,581 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:41:29,585 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:41:29,586 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:41:29" (1/1) ... [2023-11-29 06:41:29,587 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17a3ca11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:29, skipping insertion in model container [2023-11-29 06:41:29,587 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:41:29" (1/1) ... [2023-11-29 06:41:29,617 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:41:29,767 WARN L240 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_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c[1245,1258] [2023-11-29 06:41:29,837 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:41:29,847 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:41:29,861 WARN L240 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_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c[1245,1258] [2023-11-29 06:41:29,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:41:29,913 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:41:29,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:29 WrapperNode [2023-11-29 06:41:29,914 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:41:29,915 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:41:29,915 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:41:29,915 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:41:29,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:29" (1/1) ... [2023-11-29 06:41:29,936 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:29" (1/1) ... [2023-11-29 06:41:30,014 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 386 [2023-11-29 06:41:30,015 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:41:30,015 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:41:30,016 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:41:30,016 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:41:30,027 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:29" (1/1) ... [2023-11-29 06:41:30,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:29" (1/1) ... [2023-11-29 06:41:30,036 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:29" (1/1) ... [2023-11-29 06:41:30,062 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2023-11-29 06:41:30,062 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:29" (1/1) ... [2023-11-29 06:41:30,062 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:29" (1/1) ... [2023-11-29 06:41:30,080 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:29" (1/1) ... [2023-11-29 06:41:30,084 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:29" (1/1) ... [2023-11-29 06:41:30,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:29" (1/1) ... [2023-11-29 06:41:30,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:29" (1/1) ... [2023-11-29 06:41:30,107 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:41:30,108 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:41:30,108 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:41:30,108 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:41:30,109 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:29" (1/1) ... [2023-11-29 06:41:30,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:41:30,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:41:30,136 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:41:30,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:41:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:41:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:41:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 06:41:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:41:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:41:30,281 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:41:30,283 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:41:30,730 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:41:30,755 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:41:30,756 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 06:41:30,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:41:30 BoogieIcfgContainer [2023-11-29 06:41:30,756 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:41:30,779 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:41:30,779 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:41:30,782 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:41:30,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:41:29" (1/3) ... [2023-11-29 06:41:30,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348fd3e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:41:30, skipping insertion in model container [2023-11-29 06:41:30,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:29" (2/3) ... [2023-11-29 06:41:30,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348fd3e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:41:30, skipping insertion in model container [2023-11-29 06:41:30,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:41:30" (3/3) ... [2023-11-29 06:41:30,785 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal55.c [2023-11-29 06:41:30,799 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:41:30,799 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 06:41:30,840 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:41:30,846 INFO L357 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, mHoare=true, 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;@5139c1a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:41:30,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 06:41:30,850 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 60 states have (on average 1.6666666666666667) internal successors, (100), 61 states have internal predecessors, (100), 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) [2023-11-29 06:41:30,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 06:41:30,857 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:30,857 INFO L195 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] [2023-11-29 06:41:30,858 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:30,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:30,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1513167013, now seen corresponding path program 1 times [2023-11-29 06:41:30,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:30,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688400993] [2023-11-29 06:41:30,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:30,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:31,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:31,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:31,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688400993] [2023-11-29 06:41:31,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688400993] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:31,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:31,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:41:31,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414111358] [2023-11-29 06:41:31,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:31,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:41:31,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:31,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:41:31,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:41:31,449 INFO L87 Difference]: Start difference. First operand has 62 states, 60 states have (on average 1.6666666666666667) internal successors, (100), 61 states have internal predecessors, (100), 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 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2023-11-29 06:41:31,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:31,496 INFO L93 Difference]: Finished difference Result 111 states and 181 transitions. [2023-11-29 06:41:31,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:41:31,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2023-11-29 06:41:31,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:31,504 INFO L225 Difference]: With dead ends: 111 [2023-11-29 06:41:31,504 INFO L226 Difference]: Without dead ends: 62 [2023-11-29 06:41:31,506 INFO L412 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 [2023-11-29 06:41:31,509 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 1 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:31,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 274 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:41:31,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-29 06:41:31,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-29 06:41:31,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.6065573770491803) internal successors, (98), 61 states have internal predecessors, (98), 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) [2023-11-29 06:41:31,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 98 transitions. [2023-11-29 06:41:31,541 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 98 transitions. Word has length 34 [2023-11-29 06:41:31,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:31,542 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 98 transitions. [2023-11-29 06:41:31,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2023-11-29 06:41:31,543 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 98 transitions. [2023-11-29 06:41:31,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 06:41:31,544 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:31,544 INFO L195 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] [2023-11-29 06:41:31,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:41:31,545 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:31,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:31,546 INFO L85 PathProgramCache]: Analyzing trace with hash -334737725, now seen corresponding path program 1 times [2023-11-29 06:41:31,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:31,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3758063] [2023-11-29 06:41:31,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:31,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:31,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:31,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:31,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3758063] [2023-11-29 06:41:31,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3758063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:31,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:31,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:41:31,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415442549] [2023-11-29 06:41:31,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:31,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:41:31,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:31,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:41:31,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:41:31,739 INFO L87 Difference]: Start difference. First operand 62 states and 98 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2023-11-29 06:41:31,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:31,772 INFO L93 Difference]: Finished difference Result 114 states and 179 transitions. [2023-11-29 06:41:31,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:41:31,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 35 [2023-11-29 06:41:31,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:31,774 INFO L225 Difference]: With dead ends: 114 [2023-11-29 06:41:31,775 INFO L226 Difference]: Without dead ends: 65 [2023-11-29 06:41:31,775 INFO L412 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 [2023-11-29 06:41:31,777 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 1 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 272 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 [2023-11-29 06:41:31,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 272 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:41:31,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-11-29 06:41:31,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2023-11-29 06:41:31,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.5873015873015872) internal successors, (100), 63 states have internal predecessors, (100), 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) [2023-11-29 06:41:31,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 100 transitions. [2023-11-29 06:41:31,786 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 100 transitions. Word has length 35 [2023-11-29 06:41:31,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:31,787 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 100 transitions. [2023-11-29 06:41:31,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2023-11-29 06:41:31,787 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 100 transitions. [2023-11-29 06:41:31,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 06:41:31,789 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:31,789 INFO L195 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] [2023-11-29 06:41:31,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:41:31,789 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:31,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:31,790 INFO L85 PathProgramCache]: Analyzing trace with hash -222359807, now seen corresponding path program 1 times [2023-11-29 06:41:31,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:31,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470335160] [2023-11-29 06:41:31,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:31,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:32,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:32,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:32,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470335160] [2023-11-29 06:41:32,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470335160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:32,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:32,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:41:32,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995820537] [2023-11-29 06:41:32,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:32,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:41:32,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:32,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:41:32,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:41:32,290 INFO L87 Difference]: Start difference. First operand 64 states and 100 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 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) [2023-11-29 06:41:32,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:32,444 INFO L93 Difference]: Finished difference Result 191 states and 299 transitions. [2023-11-29 06:41:32,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:41:32,445 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 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 36 [2023-11-29 06:41:32,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:32,447 INFO L225 Difference]: With dead ends: 191 [2023-11-29 06:41:32,447 INFO L226 Difference]: Without dead ends: 140 [2023-11-29 06:41:32,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:41:32,449 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 407 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:32,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 392 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:41:32,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-29 06:41:32,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 90. [2023-11-29 06:41:32,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.595505617977528) internal successors, (142), 89 states have internal predecessors, (142), 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) [2023-11-29 06:41:32,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 142 transitions. [2023-11-29 06:41:32,461 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 142 transitions. Word has length 36 [2023-11-29 06:41:32,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:32,462 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 142 transitions. [2023-11-29 06:41:32,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 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) [2023-11-29 06:41:32,462 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 142 transitions. [2023-11-29 06:41:32,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-29 06:41:32,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:32,464 INFO L195 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] [2023-11-29 06:41:32,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 06:41:32,464 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:32,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:32,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1586074219, now seen corresponding path program 1 times [2023-11-29 06:41:32,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:32,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435870326] [2023-11-29 06:41:32,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:32,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:32,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:32,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:32,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435870326] [2023-11-29 06:41:32,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435870326] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:32,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:32,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:41:32,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501555997] [2023-11-29 06:41:32,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:32,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:41:32,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:32,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:41:32,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:41:32,782 INFO L87 Difference]: Start difference. First operand 90 states and 142 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 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) [2023-11-29 06:41:33,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:33,066 INFO L93 Difference]: Finished difference Result 235 states and 367 transitions. [2023-11-29 06:41:33,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:41:33,067 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 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 37 [2023-11-29 06:41:33,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:33,069 INFO L225 Difference]: With dead ends: 235 [2023-11-29 06:41:33,069 INFO L226 Difference]: Without dead ends: 184 [2023-11-29 06:41:33,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:41:33,071 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 655 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:33,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 641 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:41:33,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-29 06:41:33,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 93. [2023-11-29 06:41:33,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.5869565217391304) internal successors, (146), 92 states have internal predecessors, (146), 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) [2023-11-29 06:41:33,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 146 transitions. [2023-11-29 06:41:33,083 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 146 transitions. Word has length 37 [2023-11-29 06:41:33,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:33,084 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 146 transitions. [2023-11-29 06:41:33,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 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) [2023-11-29 06:41:33,084 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 146 transitions. [2023-11-29 06:41:33,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-29 06:41:33,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:33,085 INFO L195 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] [2023-11-29 06:41:33,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 06:41:33,086 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:33,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:33,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1193047209, now seen corresponding path program 1 times [2023-11-29 06:41:33,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:33,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490983639] [2023-11-29 06:41:33,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:33,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:33,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:33,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:33,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490983639] [2023-11-29 06:41:33,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490983639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:33,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:33,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:41:33,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077527275] [2023-11-29 06:41:33,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:33,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:41:33,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:33,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:41:33,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:41:33,266 INFO L87 Difference]: Start difference. First operand 93 states and 146 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2023-11-29 06:41:33,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:33,280 INFO L93 Difference]: Finished difference Result 161 states and 251 transitions. [2023-11-29 06:41:33,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:41:33,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2023-11-29 06:41:33,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:33,282 INFO L225 Difference]: With dead ends: 161 [2023-11-29 06:41:33,282 INFO L226 Difference]: Without dead ends: 93 [2023-11-29 06:41:33,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:41:33,284 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 73 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:33,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 141 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:41:33,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-29 06:41:33,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-11-29 06:41:33,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.565217391304348) internal successors, (144), 92 states have internal predecessors, (144), 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) [2023-11-29 06:41:33,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 144 transitions. [2023-11-29 06:41:33,295 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 144 transitions. Word has length 37 [2023-11-29 06:41:33,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:33,296 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 144 transitions. [2023-11-29 06:41:33,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2023-11-29 06:41:33,296 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 144 transitions. [2023-11-29 06:41:33,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 06:41:33,297 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:33,297 INFO L195 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] [2023-11-29 06:41:33,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 06:41:33,298 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:33,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:33,298 INFO L85 PathProgramCache]: Analyzing trace with hash 891809921, now seen corresponding path program 1 times [2023-11-29 06:41:33,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:33,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008941922] [2023-11-29 06:41:33,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:33,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:33,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:33,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:33,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008941922] [2023-11-29 06:41:33,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008941922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:33,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:33,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:41:33,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666967977] [2023-11-29 06:41:33,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:33,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:41:33,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:33,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:41:33,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:41:33,646 INFO L87 Difference]: Start difference. First operand 93 states and 144 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 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) [2023-11-29 06:41:33,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:33,831 INFO L93 Difference]: Finished difference Result 239 states and 365 transitions. [2023-11-29 06:41:33,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:41:33,831 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 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 38 [2023-11-29 06:41:33,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:33,833 INFO L225 Difference]: With dead ends: 239 [2023-11-29 06:41:33,833 INFO L226 Difference]: Without dead ends: 174 [2023-11-29 06:41:33,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:41:33,835 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 219 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:33,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 445 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:41:33,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-11-29 06:41:33,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 105. [2023-11-29 06:41:33,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.5192307692307692) internal successors, (158), 104 states have internal predecessors, (158), 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) [2023-11-29 06:41:33,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 158 transitions. [2023-11-29 06:41:33,845 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 158 transitions. Word has length 38 [2023-11-29 06:41:33,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:33,845 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 158 transitions. [2023-11-29 06:41:33,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 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) [2023-11-29 06:41:33,846 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 158 transitions. [2023-11-29 06:41:33,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 06:41:33,847 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:33,847 INFO L195 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] [2023-11-29 06:41:33,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 06:41:33,848 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:33,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:33,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1314511747, now seen corresponding path program 1 times [2023-11-29 06:41:33,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:33,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66886246] [2023-11-29 06:41:33,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:33,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:34,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:34,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:34,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66886246] [2023-11-29 06:41:34,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66886246] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:34,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:34,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:41:34,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201718342] [2023-11-29 06:41:34,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:34,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:41:34,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:34,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:41:34,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:41:34,131 INFO L87 Difference]: Start difference. First operand 105 states and 158 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2023-11-29 06:41:34,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:34,195 INFO L93 Difference]: Finished difference Result 240 states and 361 transitions. [2023-11-29 06:41:34,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:41:34,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 38 [2023-11-29 06:41:34,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:34,197 INFO L225 Difference]: With dead ends: 240 [2023-11-29 06:41:34,197 INFO L226 Difference]: Without dead ends: 166 [2023-11-29 06:41:34,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:41:34,198 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 205 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:34,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 293 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:41:34,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-11-29 06:41:34,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 105. [2023-11-29 06:41:34,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.5) internal successors, (156), 104 states have internal predecessors, (156), 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) [2023-11-29 06:41:34,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 156 transitions. [2023-11-29 06:41:34,214 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 156 transitions. Word has length 38 [2023-11-29 06:41:34,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:34,214 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 156 transitions. [2023-11-29 06:41:34,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2023-11-29 06:41:34,214 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 156 transitions. [2023-11-29 06:41:34,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 06:41:34,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:34,215 INFO L195 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] [2023-11-29 06:41:34,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 06:41:34,216 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:34,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:34,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1404447889, now seen corresponding path program 1 times [2023-11-29 06:41:34,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:34,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531321291] [2023-11-29 06:41:34,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:34,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:34,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:34,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:34,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531321291] [2023-11-29 06:41:34,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531321291] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:34,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:34,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:41:34,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30275269] [2023-11-29 06:41:34,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:34,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:41:34,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:34,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:41:34,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:41:34,631 INFO L87 Difference]: Start difference. First operand 105 states and 156 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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) [2023-11-29 06:41:34,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:34,753 INFO L93 Difference]: Finished difference Result 249 states and 368 transitions. [2023-11-29 06:41:34,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:41:34,753 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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 39 [2023-11-29 06:41:34,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:34,755 INFO L225 Difference]: With dead ends: 249 [2023-11-29 06:41:34,755 INFO L226 Difference]: Without dead ends: 184 [2023-11-29 06:41:34,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:41:34,756 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 308 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:34,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 491 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:41:34,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-29 06:41:34,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 115. [2023-11-29 06:41:34,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.4912280701754386) internal successors, (170), 114 states have internal predecessors, (170), 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) [2023-11-29 06:41:34,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 170 transitions. [2023-11-29 06:41:34,765 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 170 transitions. Word has length 39 [2023-11-29 06:41:34,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:34,765 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 170 transitions. [2023-11-29 06:41:34,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 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) [2023-11-29 06:41:34,765 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 170 transitions. [2023-11-29 06:41:34,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 06:41:34,766 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:34,767 INFO L195 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] [2023-11-29 06:41:34,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 06:41:34,767 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:34,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:34,767 INFO L85 PathProgramCache]: Analyzing trace with hash 223455951, now seen corresponding path program 1 times [2023-11-29 06:41:34,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:34,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685784800] [2023-11-29 06:41:34,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:34,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:35,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:35,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:35,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685784800] [2023-11-29 06:41:35,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685784800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:35,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:35,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:41:35,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079009218] [2023-11-29 06:41:35,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:35,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:41:35,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:35,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:41:35,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:41:35,037 INFO L87 Difference]: Start difference. First operand 115 states and 170 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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) [2023-11-29 06:41:35,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:35,133 INFO L93 Difference]: Finished difference Result 199 states and 294 transitions. [2023-11-29 06:41:35,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:41:35,133 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 39 [2023-11-29 06:41:35,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:35,134 INFO L225 Difference]: With dead ends: 199 [2023-11-29 06:41:35,135 INFO L226 Difference]: Without dead ends: 123 [2023-11-29 06:41:35,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:41:35,136 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 98 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:35,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 320 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:41:35,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-29 06:41:35,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2023-11-29 06:41:35,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.4666666666666666) internal successors, (176), 120 states have internal predecessors, (176), 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) [2023-11-29 06:41:35,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 176 transitions. [2023-11-29 06:41:35,143 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 176 transitions. Word has length 39 [2023-11-29 06:41:35,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:35,143 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 176 transitions. [2023-11-29 06:41:35,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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) [2023-11-29 06:41:35,143 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 176 transitions. [2023-11-29 06:41:35,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 06:41:35,144 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:35,144 INFO L195 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] [2023-11-29 06:41:35,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 06:41:35,145 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:35,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:35,145 INFO L85 PathProgramCache]: Analyzing trace with hash 646157777, now seen corresponding path program 1 times [2023-11-29 06:41:35,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:35,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140840906] [2023-11-29 06:41:35,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:35,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:35,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:35,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:35,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140840906] [2023-11-29 06:41:35,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140840906] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:35,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:35,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:41:35,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727576509] [2023-11-29 06:41:35,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:35,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:41:35,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:35,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:41:35,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:41:35,443 INFO L87 Difference]: Start difference. First operand 121 states and 176 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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) [2023-11-29 06:41:35,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:35,568 INFO L93 Difference]: Finished difference Result 277 states and 403 transitions. [2023-11-29 06:41:35,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:41:35,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 39 [2023-11-29 06:41:35,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:35,570 INFO L225 Difference]: With dead ends: 277 [2023-11-29 06:41:35,570 INFO L226 Difference]: Without dead ends: 195 [2023-11-29 06:41:35,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:41:35,571 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 149 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:35,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 343 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:41:35,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-29 06:41:35,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 127. [2023-11-29 06:41:35,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.4444444444444444) internal successors, (182), 126 states have internal predecessors, (182), 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) [2023-11-29 06:41:35,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 182 transitions. [2023-11-29 06:41:35,579 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 182 transitions. Word has length 39 [2023-11-29 06:41:35,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:35,579 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 182 transitions. [2023-11-29 06:41:35,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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) [2023-11-29 06:41:35,580 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 182 transitions. [2023-11-29 06:41:35,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 06:41:35,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:35,581 INFO L195 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] [2023-11-29 06:41:35,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 06:41:35,581 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:35,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:35,581 INFO L85 PathProgramCache]: Analyzing trace with hash 512144271, now seen corresponding path program 1 times [2023-11-29 06:41:35,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:35,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214424127] [2023-11-29 06:41:35,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:35,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:36,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:36,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:36,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214424127] [2023-11-29 06:41:36,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214424127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:36,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:36,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:41:36,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114109142] [2023-11-29 06:41:36,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:36,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:41:36,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:36,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:41:36,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:41:36,108 INFO L87 Difference]: Start difference. First operand 127 states and 182 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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) [2023-11-29 06:41:36,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:36,266 INFO L93 Difference]: Finished difference Result 211 states and 302 transitions. [2023-11-29 06:41:36,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:41:36,266 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 39 [2023-11-29 06:41:36,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:36,267 INFO L225 Difference]: With dead ends: 211 [2023-11-29 06:41:36,267 INFO L226 Difference]: Without dead ends: 129 [2023-11-29 06:41:36,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:41:36,268 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 149 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:36,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 315 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:41:36,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-29 06:41:36,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 121. [2023-11-29 06:41:36,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.4333333333333333) internal successors, (172), 120 states have internal predecessors, (172), 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) [2023-11-29 06:41:36,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 172 transitions. [2023-11-29 06:41:36,275 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 172 transitions. Word has length 39 [2023-11-29 06:41:36,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:36,276 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 172 transitions. [2023-11-29 06:41:36,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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) [2023-11-29 06:41:36,276 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 172 transitions. [2023-11-29 06:41:36,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 06:41:36,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:36,277 INFO L195 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] [2023-11-29 06:41:36,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 06:41:36,277 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:36,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:36,277 INFO L85 PathProgramCache]: Analyzing trace with hash 533816907, now seen corresponding path program 1 times [2023-11-29 06:41:36,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:36,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839438165] [2023-11-29 06:41:36,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:36,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:36,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:36,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:36,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839438165] [2023-11-29 06:41:36,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839438165] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:36,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:36,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:41:36,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545417063] [2023-11-29 06:41:36,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:36,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:41:36,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:36,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:41:36,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:41:36,699 INFO L87 Difference]: Start difference. First operand 121 states and 172 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 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) [2023-11-29 06:41:37,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:37,032 INFO L93 Difference]: Finished difference Result 271 states and 384 transitions. [2023-11-29 06:41:37,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:41:37,033 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 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 40 [2023-11-29 06:41:37,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:37,034 INFO L225 Difference]: With dead ends: 271 [2023-11-29 06:41:37,034 INFO L226 Difference]: Without dead ends: 201 [2023-11-29 06:41:37,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:41:37,035 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 365 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:37,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 645 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:41:37,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-11-29 06:41:37,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 127. [2023-11-29 06:41:37,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.4285714285714286) internal successors, (180), 126 states have internal predecessors, (180), 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) [2023-11-29 06:41:37,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 180 transitions. [2023-11-29 06:41:37,043 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 180 transitions. Word has length 40 [2023-11-29 06:41:37,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:37,043 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 180 transitions. [2023-11-29 06:41:37,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 9 states have internal predecessors, (40), 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) [2023-11-29 06:41:37,043 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 180 transitions. [2023-11-29 06:41:37,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 06:41:37,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:37,044 INFO L195 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] [2023-11-29 06:41:37,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 06:41:37,044 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:37,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:37,045 INFO L85 PathProgramCache]: Analyzing trace with hash -746046771, now seen corresponding path program 1 times [2023-11-29 06:41:37,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:37,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453366067] [2023-11-29 06:41:37,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:37,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:37,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:37,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:37,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453366067] [2023-11-29 06:41:37,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453366067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:37,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:37,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:41:37,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988656751] [2023-11-29 06:41:37,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:37,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:41:37,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:37,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:41:37,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:41:37,286 INFO L87 Difference]: Start difference. First operand 127 states and 180 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2023-11-29 06:41:37,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:37,350 INFO L93 Difference]: Finished difference Result 291 states and 409 transitions. [2023-11-29 06:41:37,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:41:37,350 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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 40 [2023-11-29 06:41:37,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:37,352 INFO L225 Difference]: With dead ends: 291 [2023-11-29 06:41:37,352 INFO L226 Difference]: Without dead ends: 215 [2023-11-29 06:41:37,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:41:37,353 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 183 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:37,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 306 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:41:37,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2023-11-29 06:41:37,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 139. [2023-11-29 06:41:37,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 1.4057971014492754) internal successors, (194), 138 states have internal predecessors, (194), 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) [2023-11-29 06:41:37,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 194 transitions. [2023-11-29 06:41:37,361 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 194 transitions. Word has length 40 [2023-11-29 06:41:37,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:37,361 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 194 transitions. [2023-11-29 06:41:37,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2023-11-29 06:41:37,362 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 194 transitions. [2023-11-29 06:41:37,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 06:41:37,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:37,362 INFO L195 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] [2023-11-29 06:41:37,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 06:41:37,363 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:37,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:37,363 INFO L85 PathProgramCache]: Analyzing trace with hash -2134655997, now seen corresponding path program 1 times [2023-11-29 06:41:37,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:37,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580691264] [2023-11-29 06:41:37,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:37,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:37,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:37,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:37,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580691264] [2023-11-29 06:41:37,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580691264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:37,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:37,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:41:37,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116842671] [2023-11-29 06:41:37,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:37,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:41:37,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:37,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:41:37,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:41:37,610 INFO L87 Difference]: Start difference. First operand 139 states and 194 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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) [2023-11-29 06:41:37,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:37,654 INFO L93 Difference]: Finished difference Result 221 states and 308 transitions. [2023-11-29 06:41:37,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:41:37,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 40 [2023-11-29 06:41:37,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:37,656 INFO L225 Difference]: With dead ends: 221 [2023-11-29 06:41:37,656 INFO L226 Difference]: Without dead ends: 139 [2023-11-29 06:41:37,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:41:37,657 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 139 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:37,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 222 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:41:37,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-29 06:41:37,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2023-11-29 06:41:37,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 1.3768115942028984) internal successors, (190), 138 states have internal predecessors, (190), 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) [2023-11-29 06:41:37,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 190 transitions. [2023-11-29 06:41:37,665 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 190 transitions. Word has length 40 [2023-11-29 06:41:37,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:37,665 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 190 transitions. [2023-11-29 06:41:37,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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) [2023-11-29 06:41:37,665 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 190 transitions. [2023-11-29 06:41:37,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 06:41:37,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:37,666 INFO L195 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] [2023-11-29 06:41:37,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 06:41:37,666 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:37,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:37,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1924439625, now seen corresponding path program 1 times [2023-11-29 06:41:37,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:37,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141127074] [2023-11-29 06:41:37,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:37,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:37,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:37,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:37,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141127074] [2023-11-29 06:41:37,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141127074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:37,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:37,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:41:37,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444413889] [2023-11-29 06:41:37,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:37,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:41:37,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:37,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:41:37,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:41:37,791 INFO L87 Difference]: Start difference. First operand 139 states and 190 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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) [2023-11-29 06:41:37,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:37,832 INFO L93 Difference]: Finished difference Result 226 states and 309 transitions. [2023-11-29 06:41:37,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:41:37,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2023-11-29 06:41:37,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:37,833 INFO L225 Difference]: With dead ends: 226 [2023-11-29 06:41:37,834 INFO L226 Difference]: Without dead ends: 147 [2023-11-29 06:41:37,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:41:37,835 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 69 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:37,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 244 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:41:37,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-11-29 06:41:37,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2023-11-29 06:41:37,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.375) internal successors, (198), 144 states have internal predecessors, (198), 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) [2023-11-29 06:41:37,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 198 transitions. [2023-11-29 06:41:37,842 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 198 transitions. Word has length 41 [2023-11-29 06:41:37,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:37,842 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 198 transitions. [2023-11-29 06:41:37,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 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) [2023-11-29 06:41:37,843 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 198 transitions. [2023-11-29 06:41:37,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 06:41:37,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:37,843 INFO L195 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] [2023-11-29 06:41:37,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 06:41:37,843 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:37,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:37,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1783721657, now seen corresponding path program 1 times [2023-11-29 06:41:37,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:37,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49187568] [2023-11-29 06:41:37,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:37,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:41:37,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:41:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:41:37,978 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:41:37,978 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 06:41:37,979 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 06:41:37,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 06:41:37,984 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:41:37,988 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:41:38,021 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 06:41:38,023 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 06:41:38,023 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-29 06:41:38,023 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-29 06:41:38,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-29 06:41:38,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-29 06:41:38,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated [2023-11-29 06:41:38,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-29 06:41:38,026 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-29 06:41:38,026 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-29 06:41:38,027 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated [2023-11-29 06:41:38,029 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated [2023-11-29 06:41:38,030 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated [2023-11-29 06:41:38,032 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated [2023-11-29 06:41:38,034 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet26 could not be translated [2023-11-29 06:41:38,035 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet27 could not be translated [2023-11-29 06:41:38,038 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet28 could not be translated [2023-11-29 06:41:38,040 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet29 could not be translated [2023-11-29 06:41:38,041 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet30 could not be translated [2023-11-29 06:41:38,042 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-29 06:41:38,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:41:38 BoogieIcfgContainer [2023-11-29 06:41:38,057 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:41:38,058 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:41:38,058 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:41:38,058 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:41:38,058 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:41:30" (3/4) ... [2023-11-29 06:41:38,060 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 06:41:38,061 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:41:38,062 INFO L158 Benchmark]: Toolchain (without parser) took 8482.92ms. Allocated memory was 132.1MB in the beginning and 257.9MB in the end (delta: 125.8MB). Free memory was 88.3MB in the beginning and 211.0MB in the end (delta: -122.6MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2023-11-29 06:41:38,062 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 98.6MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:41:38,062 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.53ms. Allocated memory is still 132.1MB. Free memory was 88.0MB in the beginning and 72.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 06:41:38,063 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.15ms. Allocated memory is still 132.1MB. Free memory was 72.9MB in the beginning and 99.3MB in the end (delta: -26.3MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2023-11-29 06:41:38,063 INFO L158 Benchmark]: Boogie Preprocessor took 91.42ms. Allocated memory is still 132.1MB. Free memory was 99.3MB in the beginning and 94.0MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 06:41:38,063 INFO L158 Benchmark]: RCFGBuilder took 648.70ms. Allocated memory is still 132.1MB. Free memory was 94.0MB in the beginning and 53.7MB in the end (delta: 40.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-29 06:41:38,064 INFO L158 Benchmark]: TraceAbstraction took 7278.17ms. Allocated memory was 132.1MB in the beginning and 257.9MB in the end (delta: 125.8MB). Free memory was 99.1MB in the beginning and 211.0MB in the end (delta: -111.9MB). Peak memory consumption was 125.8MB. Max. memory is 16.1GB. [2023-11-29 06:41:38,064 INFO L158 Benchmark]: Witness Printer took 3.90ms. Allocated memory is still 257.9MB. Free memory is still 211.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:41:38,066 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 98.6MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.53ms. Allocated memory is still 132.1MB. Free memory was 88.0MB in the beginning and 72.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.15ms. Allocated memory is still 132.1MB. Free memory was 72.9MB in the beginning and 99.3MB in the end (delta: -26.3MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.42ms. Allocated memory is still 132.1MB. Free memory was 99.3MB in the beginning and 94.0MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 648.70ms. Allocated memory is still 132.1MB. Free memory was 94.0MB in the beginning and 53.7MB in the end (delta: 40.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7278.17ms. Allocated memory was 132.1MB in the beginning and 257.9MB in the end (delta: 125.8MB). Free memory was 99.1MB in the beginning and 211.0MB in the end (delta: -111.9MB). Peak memory consumption was 125.8MB. Max. memory is 16.1GB. * Witness Printer took 3.90ms. Allocated memory is still 257.9MB. Free memory is still 211.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet26 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet28 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet29 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet30 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 bitwiseOr at line 117, overapproximation of bitwiseAnd at line 122. 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_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 3); [L30] const SORT_5 msb_SORT_5 = (SORT_5)1 << (3 - 1); [L32] const SORT_26 mask_SORT_26 = (SORT_26)-1 >> (sizeof(SORT_26) * 8 - 2); [L33] const SORT_26 msb_SORT_26 = (SORT_26)1 << (2 - 1); [L35] const SORT_1 var_11 = 0; [L36] const SORT_5 var_15 = 0; [L37] const SORT_5 var_21 = 5; [L38] const SORT_5 var_23 = 4; [L39] const SORT_1 var_39 = 1; [L41] SORT_1 input_2; [L42] SORT_1 input_3; [L43] SORT_1 input_4; [L44] SORT_5 input_6; [L45] SORT_5 input_7; [L46] SORT_1 input_8; [L47] SORT_5 input_9; [L48] SORT_5 input_10; [L50] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, var_11=0, var_15=0, var_21=5, var_23=4, var_39=1] [L50] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L51] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, var_11=0, var_15=0, var_21=5, var_23=4, var_39=1] [L51] SORT_5 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L52] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, var_11=0, var_15=0, var_21=5, var_23=4, var_39=1] [L52] SORT_1 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L53] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, var_11=0, var_15=0, var_21=5, var_23=4, var_39=1] [L53] SORT_5 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L55] SORT_1 init_13_arg_1 = var_11; [L56] state_12 = init_13_arg_1 [L57] SORT_5 init_17_arg_1 = var_15; [L58] state_16 = init_17_arg_1 [L59] SORT_1 init_19_arg_1 = var_11; [L60] state_18 = init_19_arg_1 [L61] SORT_5 init_30_arg_1 = var_15; [L62] state_29 = init_30_arg_1 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_15=0, var_21=5, var_23=4, var_39=1] [L65] input_2 = __VERIFIER_nondet_uchar() [L66] EXPR input_2 & mask_SORT_1 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, input_2=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_15=0, var_21=5, var_23=4, var_39=1] [L66] input_2 = input_2 & mask_SORT_1 [L67] input_3 = __VERIFIER_nondet_uchar() [L68] EXPR input_3 & mask_SORT_1 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_15=0, var_21=5, var_23=4, var_39=1] [L68] input_3 = input_3 & mask_SORT_1 [L69] input_4 = __VERIFIER_nondet_uchar() [L70] input_6 = __VERIFIER_nondet_uchar() [L71] input_7 = __VERIFIER_nondet_uchar() [L72] input_8 = __VERIFIER_nondet_uchar() [L73] input_9 = __VERIFIER_nondet_uchar() [L74] input_10 = __VERIFIER_nondet_uchar() [L77] SORT_1 var_14_arg_0 = state_12; [L78] SORT_1 var_14 = ~var_14_arg_0; [L79] SORT_1 var_20_arg_0 = state_18; [L80] SORT_5 var_20_arg_1 = state_16; [L81] SORT_5 var_20_arg_2 = input_7; [L82] SORT_5 var_20 = var_20_arg_0 ? var_20_arg_1 : var_20_arg_2; VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=5, var_23=4, var_39=1] [L83] EXPR var_20 & mask_SORT_5 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=5, var_23=4, var_39=1] [L83] var_20 = var_20 & mask_SORT_5 [L84] SORT_5 var_24_arg_0 = var_20; [L85] SORT_5 var_24_arg_1 = var_23; [L86] SORT_1 var_24 = var_24_arg_0 == var_24_arg_1; [L87] SORT_1 var_25_arg_0 = var_24; [L88] SORT_1 var_25 = ~var_25_arg_0; [L89] SORT_5 var_22_arg_0 = var_20; [L90] SORT_5 var_22_arg_1 = var_21; [L91] SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; [L92] SORT_1 var_27_arg_0 = var_25; [L93] SORT_1 var_27_arg_1 = var_22; VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=5, var_22=0, var_22_arg_0=0, var_22_arg_1=5, var_23=4, var_24=0, var_24_arg_0=0, var_24_arg_1=4, var_25=255, var_25_arg_0=0, var_27_arg_0=255, var_27_arg_1=0, var_39=1] [L94] EXPR ((SORT_26)var_27_arg_0 << 1) | var_27_arg_1 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=5, var_22=0, var_22_arg_0=0, var_22_arg_1=5, var_23=4, var_24=0, var_24_arg_0=0, var_24_arg_1=4, var_25=255, var_25_arg_0=0, var_27_arg_0=255, var_27_arg_1=0, var_39=1] [L94] SORT_26 var_27 = ((SORT_26)var_27_arg_0 << 1) | var_27_arg_1; [L95] EXPR var_27 & mask_SORT_26 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=5, var_22=0, var_22_arg_0=0, var_22_arg_1=5, var_23=4, var_24=0, var_24_arg_0=0, var_24_arg_1=4, var_25=255, var_25_arg_0=0, var_27=254, var_27_arg_0=255, var_27_arg_1=0, var_39=1] [L95] var_27 = var_27 & mask_SORT_26 [L96] SORT_26 var_28_arg_0 = var_27; [L97] SORT_1 var_28 = var_28_arg_0 == mask_SORT_26; [L98] SORT_1 var_31_arg_0 = state_18; [L99] SORT_5 var_31_arg_1 = state_29; [L100] SORT_5 var_31_arg_2 = input_7; [L101] SORT_5 var_31 = var_31_arg_0 ? var_31_arg_1 : var_31_arg_2; VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=5, var_22=0, var_22_arg_0=0, var_22_arg_1=5, var_23=4, var_24=0, var_24_arg_0=0, var_24_arg_1=4, var_25=255, var_25_arg_0=0, var_27=3, var_27_arg_0=255, var_27_arg_1=0, var_28=1, var_28_arg_0=3, var_31=0, var_31_arg_0=0, var_31_arg_1=0, var_31_arg_2=0, var_39=1] [L102] EXPR var_31 & mask_SORT_5 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=5, var_22=0, var_22_arg_0=0, var_22_arg_1=5, var_23=4, var_24=0, var_24_arg_0=0, var_24_arg_1=4, var_25=255, var_25_arg_0=0, var_27=3, var_27_arg_0=255, var_27_arg_1=0, var_28=1, var_28_arg_0=3, var_31=0, var_31_arg_0=0, var_31_arg_1=0, var_31_arg_2=0, var_39=1] [L102] var_31 = var_31 & mask_SORT_5 [L103] SORT_5 var_32_arg_0 = var_31; [L104] SORT_5 var_32_arg_1 = var_21; [L105] SORT_1 var_32 = var_32_arg_0 == var_32_arg_1; [L106] SORT_1 var_33_arg_0 = var_25; [L107] SORT_1 var_33_arg_1 = var_32; VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=5, var_22=0, var_22_arg_0=0, var_22_arg_1=5, var_23=4, var_24=0, var_24_arg_0=0, var_24_arg_1=4, var_25=255, var_25_arg_0=0, var_27=3, var_27_arg_0=255, var_27_arg_1=0, var_28=1, var_28_arg_0=3, var_31=0, var_31_arg_0=0, var_31_arg_1=0, var_31_arg_2=0, var_32=0, var_32_arg_0=0, var_32_arg_1=5, var_33_arg_0=255, var_33_arg_1=0, var_39=1] [L108] EXPR ((SORT_26)var_33_arg_0 << 1) | var_33_arg_1 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=5, var_22=0, var_22_arg_0=0, var_22_arg_1=5, var_23=4, var_24=0, var_24_arg_0=0, var_24_arg_1=4, var_25=255, var_25_arg_0=0, var_27=3, var_27_arg_0=255, var_27_arg_1=0, var_28=1, var_28_arg_0=3, var_31=0, var_31_arg_0=0, var_31_arg_1=0, var_31_arg_2=0, var_32=0, var_32_arg_0=0, var_32_arg_1=5, var_33_arg_0=255, var_33_arg_1=0, var_39=1] [L108] SORT_26 var_33 = ((SORT_26)var_33_arg_0 << 1) | var_33_arg_1; [L109] EXPR var_33 & mask_SORT_26 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=5, var_22=0, var_22_arg_0=0, var_22_arg_1=5, var_23=4, var_24=0, var_24_arg_0=0, var_24_arg_1=4, var_25=255, var_25_arg_0=0, var_27=3, var_27_arg_0=255, var_27_arg_1=0, var_28=1, var_28_arg_0=3, var_31=0, var_31_arg_0=0, var_31_arg_1=0, var_31_arg_2=0, var_32=0, var_32_arg_0=0, var_32_arg_1=5, var_33=254, var_33_arg_0=255, var_33_arg_1=0, var_39=1] [L109] var_33 = var_33 & mask_SORT_26 [L110] SORT_26 var_34_arg_0 = var_33; [L111] SORT_1 var_34 = var_34_arg_0 == mask_SORT_26; [L112] SORT_1 var_35_arg_0 = var_28; [L113] SORT_1 var_35_arg_1 = var_34; [L114] SORT_1 var_35 = var_35_arg_0 == var_35_arg_1; [L115] SORT_1 var_36_arg_0 = var_14; [L116] SORT_1 var_36_arg_1 = var_35; VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=5, var_22=0, var_22_arg_0=0, var_22_arg_1=5, var_23=4, var_24=0, var_24_arg_0=0, var_24_arg_1=4, var_25=255, var_25_arg_0=0, var_27=3, var_27_arg_0=255, var_27_arg_1=0, var_28=1, var_28_arg_0=3, var_31=0, var_31_arg_0=0, var_31_arg_1=0, var_31_arg_2=0, var_32=0, var_32_arg_0=0, var_32_arg_1=5, var_33=3, var_33_arg_0=255, var_33_arg_1=0, var_34=1, var_34_arg_0=3, var_35=1, var_35_arg_0=1, var_35_arg_1=1, var_36_arg_0=255, var_36_arg_1=1, var_39=1] [L117] EXPR var_36_arg_0 | var_36_arg_1 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=5, var_22=0, var_22_arg_0=0, var_22_arg_1=5, var_23=4, var_24=0, var_24_arg_0=0, var_24_arg_1=4, var_25=255, var_25_arg_0=0, var_27=3, var_27_arg_0=255, var_27_arg_1=0, var_28=1, var_28_arg_0=3, var_31=0, var_31_arg_0=0, var_31_arg_1=0, var_31_arg_2=0, var_32=0, var_32_arg_0=0, var_32_arg_1=5, var_33=3, var_33_arg_0=255, var_33_arg_1=0, var_34=1, var_34_arg_0=3, var_35=1, var_35_arg_0=1, var_35_arg_1=1, var_36_arg_0=255, var_36_arg_1=1, var_39=1] [L117] SORT_1 var_36 = var_36_arg_0 | var_36_arg_1; [L118] SORT_1 var_40_arg_0 = var_36; [L119] SORT_1 var_40 = ~var_40_arg_0; [L120] SORT_1 var_41_arg_0 = var_39; [L121] SORT_1 var_41_arg_1 = var_40; VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=5, var_22=0, var_22_arg_0=0, var_22_arg_1=5, var_23=4, var_24=0, var_24_arg_0=0, var_24_arg_1=4, var_25=255, var_25_arg_0=0, var_27=3, var_27_arg_0=255, var_27_arg_1=0, var_28=1, var_28_arg_0=3, var_31=0, var_31_arg_0=0, var_31_arg_1=0, var_31_arg_2=0, var_32=0, var_32_arg_0=0, var_32_arg_1=5, var_33=3, var_33_arg_0=255, var_33_arg_1=0, var_34=1, var_34_arg_0=3, var_35=1, var_35_arg_0=1, var_35_arg_1=1, var_36=0, var_36_arg_0=255, var_36_arg_1=1, var_39=1, var_40=255, var_40_arg_0=0, var_41_arg_0=1, var_41_arg_1=255] [L122] EXPR var_41_arg_0 & var_41_arg_1 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=5, var_22=0, var_22_arg_0=0, var_22_arg_1=5, var_23=4, var_24=0, var_24_arg_0=0, var_24_arg_1=4, var_25=255, var_25_arg_0=0, var_27=3, var_27_arg_0=255, var_27_arg_1=0, var_28=1, var_28_arg_0=3, var_31=0, var_31_arg_0=0, var_31_arg_1=0, var_31_arg_2=0, var_32=0, var_32_arg_0=0, var_32_arg_1=5, var_33=3, var_33_arg_0=255, var_33_arg_1=0, var_34=1, var_34_arg_0=3, var_35=1, var_35_arg_0=1, var_35_arg_1=1, var_36=0, var_36_arg_0=255, var_36_arg_1=1, var_39=1, var_40=255, var_40_arg_0=0, var_41_arg_0=1, var_41_arg_1=255] [L122] SORT_1 var_41 = var_41_arg_0 & var_41_arg_1; [L123] EXPR var_41 & mask_SORT_1 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_30_arg_1=0, input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_26=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_26=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_29=0, var_11=0, var_14=255, var_14_arg_0=0, var_15=0, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_20_arg_2=0, var_21=5, var_22=0, var_22_arg_0=0, var_22_arg_1=5, var_23=4, var_24=0, var_24_arg_0=0, var_24_arg_1=4, var_25=255, var_25_arg_0=0, var_27=3, var_27_arg_0=255, var_27_arg_1=0, var_28=1, var_28_arg_0=3, var_31=0, var_31_arg_0=0, var_31_arg_1=0, var_31_arg_2=0, var_32=0, var_32_arg_0=0, var_32_arg_1=5, var_33=3, var_33_arg_0=255, var_33_arg_1=0, var_34=1, var_34_arg_0=3, var_35=1, var_35_arg_0=1, var_35_arg_1=1, var_36=0, var_36_arg_0=255, var_36_arg_1=1, var_39=1, var_40=255, var_40_arg_0=0, var_41=1, var_41_arg_0=1, var_41_arg_1=255] [L123] var_41 = var_41 & mask_SORT_1 [L124] SORT_1 bad_42_arg_0 = var_41; [L125] CALL __VERIFIER_assert(!(bad_42_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.2s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3021 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3021 mSDsluCounter, 5344 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3720 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 708 IncrementalHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 1624 mSDtfsCounter, 708 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 30 SyntacticMatches, 5 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=145occurred in iteration=15, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 571 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 613 NumberOfCodeBlocks, 613 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 557 ConstructedInterpolants, 0 QuantifiedInterpolants, 2155 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 06:41:38,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya --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 bee37cc3aa930a1b9dc8d03049770a16229b9136afc75c48614cf8a9ab0bb811 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:41:40,064 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:41:40,145 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-29 06:41:40,150 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:41:40,151 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:41:40,178 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:41:40,179 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:41:40,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:41:40,180 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:41:40,181 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:41:40,181 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:41:40,182 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:41:40,183 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:41:40,183 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:41:40,184 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:41:40,185 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:41:40,185 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:41:40,186 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:41:40,186 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:41:40,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:41:40,187 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:41:40,187 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 06:41:40,188 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 06:41:40,188 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 06:41:40,189 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:41:40,189 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:41:40,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:41:40,190 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:41:40,190 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:41:40,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:41:40,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:41:40,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:41:40,192 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:41:40,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:41:40,192 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 06:41:40,193 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 06:41:40,193 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:41:40,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:41:40,194 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:41:40,194 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:41:40,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:41:40,194 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 06:41:40,194 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bee37cc3aa930a1b9dc8d03049770a16229b9136afc75c48614cf8a9ab0bb811 [2023-11-29 06:41:40,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:41:40,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:41:40,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:41:40,508 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:41:40,508 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:41:40,510 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c [2023-11-29 06:41:43,285 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:41:43,521 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:41:43,521 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c [2023-11-29 06:41:43,531 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/data/9f1b9976a/387993117d354cc893f3be7f641df6e3/FLAG3f122add3 [2023-11-29 06:41:43,546 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/data/9f1b9976a/387993117d354cc893f3be7f641df6e3 [2023-11-29 06:41:43,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:41:43,551 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:41:43,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:41:43,552 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:41:43,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:41:43,560 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:41:43" (1/1) ... [2023-11-29 06:41:43,561 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45cda095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:43, skipping insertion in model container [2023-11-29 06:41:43,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:41:43" (1/1) ... [2023-11-29 06:41:43,591 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:41:43,734 WARN L240 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_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c[1245,1258] [2023-11-29 06:41:43,792 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:41:43,805 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:41:43,816 WARN L240 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_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal55.c[1245,1258] [2023-11-29 06:41:43,852 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:41:43,865 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:41:43,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:43 WrapperNode [2023-11-29 06:41:43,865 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:41:43,866 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:41:43,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:41:43,867 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:41:43,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:43" (1/1) ... [2023-11-29 06:41:43,884 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:43" (1/1) ... [2023-11-29 06:41:43,930 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 206 [2023-11-29 06:41:43,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:41:43,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:41:43,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:41:43,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:41:43,944 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:43" (1/1) ... [2023-11-29 06:41:43,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:43" (1/1) ... [2023-11-29 06:41:43,950 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:43" (1/1) ... [2023-11-29 06:41:43,973 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2023-11-29 06:41:43,974 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:43" (1/1) ... [2023-11-29 06:41:43,974 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:43" (1/1) ... [2023-11-29 06:41:43,984 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:43" (1/1) ... [2023-11-29 06:41:43,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:43" (1/1) ... [2023-11-29 06:41:43,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:43" (1/1) ... [2023-11-29 06:41:43,995 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:43" (1/1) ... [2023-11-29 06:41:43,999 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:41:44,001 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:41:44,001 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:41:44,001 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:41:44,002 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:43" (1/1) ... [2023-11-29 06:41:44,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:41:44,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:41:44,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:41:44,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:41:44,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:41:44,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 06:41:44,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 06:41:44,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:41:44,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:41:44,175 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:41:44,178 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:41:44,395 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:41:44,429 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:41:44,429 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 06:41:44,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:41:44 BoogieIcfgContainer [2023-11-29 06:41:44,430 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:41:44,433 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:41:44,433 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:41:44,436 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:41:44,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:41:43" (1/3) ... [2023-11-29 06:41:44,437 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15bcee18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:41:44, skipping insertion in model container [2023-11-29 06:41:44,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:43" (2/3) ... [2023-11-29 06:41:44,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15bcee18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:41:44, skipping insertion in model container [2023-11-29 06:41:44,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:41:44" (3/3) ... [2023-11-29 06:41:44,440 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal55.c [2023-11-29 06:41:44,458 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:41:44,470 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 06:41:44,517 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:41:44,524 INFO L357 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, mHoare=true, 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;@6104d1f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:41:44,524 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 06:41:44,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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) [2023-11-29 06:41:44,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 06:41:44,535 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:44,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 06:41:44,536 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:44,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:44,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-29 06:41:44,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:41:44,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110233092] [2023-11-29 06:41:44,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:44,555 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:41:44,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:41:44,558 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:41:44,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 06:41:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:44,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:41:44,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:44,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:44,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:41:44,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:41:44,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110233092] [2023-11-29 06:41:44,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110233092] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:44,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:44,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:41:44,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673981407] [2023-11-29 06:41:44,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:44,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:41:44,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:41:44,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:41:44,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:41:44,905 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-29 06:41:44,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:44,968 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-11-29 06:41:44,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:41:44,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-11-29 06:41:44,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:44,978 INFO L225 Difference]: With dead ends: 16 [2023-11-29 06:41:44,978 INFO L226 Difference]: Without dead ends: 9 [2023-11-29 06:41:44,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:41:44,984 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:44,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:41:45,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-29 06:41:45,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-29 06:41:45,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2023-11-29 06:41:45,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-29 06:41:45,015 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-29 06:41:45,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:45,016 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-29 06:41:45,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-29 06:41:45,016 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-29 06:41:45,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 06:41:45,017 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:45,017 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-29 06:41:45,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:41:45,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:41:45,218 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:45,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:45,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-29 06:41:45,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:41:45,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202664996] [2023-11-29 06:41:45,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:45,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:41:45,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:41:45,222 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:41:45,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 06:41:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:45,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 55 conjunts are in the unsatisfiable core [2023-11-29 06:41:45,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:46,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:46,264 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:41:50,451 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:50,452 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:41:50,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202664996] [2023-11-29 06:41:50,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202664996] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:41:50,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:41:50,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 06:41:50,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017772614] [2023-11-29 06:41:50,453 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:41:50,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:41:50,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:41:50,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:41:50,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:41:50,456 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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) [2023-11-29 06:41:50,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:50,614 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-29 06:41:50,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:41:50,615 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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 7 [2023-11-29 06:41:50,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:50,616 INFO L225 Difference]: With dead ends: 14 [2023-11-29 06:41:50,616 INFO L226 Difference]: Without dead ends: 12 [2023-11-29 06:41:50,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:41:50,618 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:50,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 11 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:41:50,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-29 06:41:50,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-11-29 06:41:50,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 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) [2023-11-29 06:41:50,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-29 06:41:50,623 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-11-29 06:41:50,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:50,623 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-29 06:41:50,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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) [2023-11-29 06:41:50,624 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-29 06:41:50,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 06:41:50,624 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:50,625 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-11-29 06:41:50,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 06:41:50,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:41:50,826 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:50,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:50,826 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-11-29 06:41:50,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:41:50,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329095011] [2023-11-29 06:41:50,828 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:41:50,828 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:41:50,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:41:50,829 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:41:50,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 06:41:51,046 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:41:51,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:41:51,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 121 conjunts are in the unsatisfiable core [2023-11-29 06:41:51,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:52,930 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:41:52,930 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:42:50,819 WARN L293 SmtUtils]: Spent 12.09s on a formula simplification that was a NOOP. DAG size: 541 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:45:54,415 WARN L293 SmtUtils]: Spent 24.38s on a formula simplification that was a NOOP. DAG size: 663 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:49:25,816 WARN L293 SmtUtils]: Spent 1.57m on a formula simplification. DAG size of input: 716 DAG size of output: 678 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:53:55,742 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:53:55,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:53:55,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1329095011] [2023-11-29 06:53:55,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1329095011] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:53:55,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:53:55,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 06:53:55,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954562712] [2023-11-29 06:53:55,744 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:53:55,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:53:55,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:53:55,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:53:55,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:53:55,746 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 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) [2023-11-29 06:53:56,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:53:56,464 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2023-11-29 06:53:56,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:53:56,465 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 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 10 [2023-11-29 06:53:56,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:53:56,466 INFO L225 Difference]: With dead ends: 12 [2023-11-29 06:53:56,466 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 06:53:56,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 132.7s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:53:56,467 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:53:56,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:53:56,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 06:53:56,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 06:53:56,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-11-29 06:53:56,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 06:53:56,469 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2023-11-29 06:53:56,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:53:56,469 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 06:53:56,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 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) [2023-11-29 06:53:56,469 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 06:53:56,469 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 06:53:56,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 06:53:56,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 06:53:56,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:53:56,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 06:53:56,869 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 06:53:56,869 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-11-29 06:53:56,869 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-11-29 06:53:56,869 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-11-29 06:53:56,870 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 06:53:56,870 INFO L895 garLoopResultBuilder]: At program point L63-2(lines 63 191) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= (_ bv1 8) |ULTIMATE.start_main_~var_39~0#1|)) (.cse2 (= (_ bv4 8) |ULTIMATE.start_main_~var_23~0#1|)) (.cse9 (= (_ bv1 8) |ULTIMATE.start_main_~state_12~0#1|)) (.cse3 (= (_ bv7 8) |ULTIMATE.start_main_~mask_SORT_5~0#1|)) (.cse4 (= (_ bv0 8) |ULTIMATE.start_main_~state_18~0#1|)) (.cse5 (= |ULTIMATE.start_main_~mask_SORT_26~0#1| (_ bv3 8))) (.cse6 (= |ULTIMATE.start_main_~var_15~0#1| (_ bv0 8))) (.cse7 (= |ULTIMATE.start_main_~var_21~0#1| (_ bv5 8))) (.cse8 (= |ULTIMATE.start_main_~var_11~0#1| (_ bv0 8)))) (or (and .cse0 .cse1 .cse2 .cse3 (= (_ bv0 8) |ULTIMATE.start_main_~state_12~0#1|) .cse4 .cse5 .cse6 .cse7 .cse8) (and (exists ((|v_ULTIMATE.start_main_#t~nondet9#1_20| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet9#1_20|) (_ bv1 32))) |ULTIMATE.start_main_~input_3~0#1|)) .cse0 (exists ((|v_ULTIMATE.start_main_#t~nondet8#1_20| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet8#1_20|) (_ bv1 32))) |ULTIMATE.start_main_~input_2~0#1|)) .cse1 .cse2 .cse9 (= (_ bv1 8) |ULTIMATE.start_main_~state_18~0#1|) (exists ((|ULTIMATE.start_main_~var_44_arg_1~0#1| (_ BitVec 8))) (let ((.cse10 ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_44_arg_1~0#1|)))))))))))) (and (= |ULTIMATE.start_main_~state_16~0#1| .cse10) (= |ULTIMATE.start_main_~state_29~0#1| .cse10)))) .cse3 (exists ((|ULTIMATE.start_main_~var_20_arg_2~0#1| (_ BitVec 8))) (let ((.cse11 ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_20_arg_2~0#1|))) (_ bv7 32))))) (and (= .cse11 |ULTIMATE.start_main_~var_31~0#1|) (= .cse11 |ULTIMATE.start_main_~var_20~0#1|)))) .cse5 .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse9 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8))) [2023-11-29 06:53:56,870 INFO L899 garLoopResultBuilder]: For program point L63-3(lines 63 191) no Hoare annotation was computed. [2023-11-29 06:53:56,870 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2023-11-29 06:53:56,873 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-11-29 06:53:56,875 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:53:56,886 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_#t~nondet9#1_20 : bv8 :: ~bvand~32(~zero_extend~32~8(v_ULTIMATE.start_main_#t~nondet9#1_20), 1bv32)[7:0] == ~input_3~0) could not be translated [2023-11-29 06:53:56,887 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_#t~nondet8#1_20 : bv8 :: ~bvand~32(~zero_extend~32~8(v_ULTIMATE.start_main_#t~nondet8#1_20), 1bv32)[7:0] == ~input_2~0) could not be translated [2023-11-29 06:53:56,888 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_44_arg_1~0#1 : bv8 :: ~state_16~0 == ~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_44_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] && ~state_29~0 == ~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_44_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0]) could not be translated [2023-11-29 06:53:56,888 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_20_arg_2~0#1 : bv8 :: ~bvand~32(~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]), 7bv32)[7:0] == ~var_31~0 && ~bvand~32(~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]), 7bv32)[7:0] == ~var_20~0) could not be translated [2023-11-29 06:53:56,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:53:56 BoogieIcfgContainer [2023-11-29 06:53:56,889 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:53:56,890 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:53:56,890 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:53:56,890 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:53:56,891 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:41:44" (3/4) ... [2023-11-29 06:53:56,892 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 06:53:56,901 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-29 06:53:56,902 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-29 06:53:56,903 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 06:53:56,903 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 06:53:56,904 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 06:53:57,007 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 06:53:57,008 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 06:53:57,008 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:53:57,008 INFO L158 Benchmark]: Toolchain (without parser) took 733457.98ms. Allocated memory was 75.5MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 52.1MB in the beginning and 727.4MB in the end (delta: -675.3MB). Peak memory consumption was 405.4MB. Max. memory is 16.1GB. [2023-11-29 06:53:57,009 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 75.5MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:53:57,009 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.83ms. Allocated memory is still 75.5MB. Free memory was 51.9MB in the beginning and 37.0MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 06:53:57,009 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.48ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 37.0MB in the beginning and 74.7MB in the end (delta: -37.8MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-11-29 06:53:57,010 INFO L158 Benchmark]: Boogie Preprocessor took 68.31ms. Allocated memory is still 96.5MB. Free memory was 74.7MB in the beginning and 71.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 06:53:57,010 INFO L158 Benchmark]: RCFGBuilder took 429.74ms. Allocated memory is still 96.5MB. Free memory was 71.7MB in the beginning and 49.3MB in the end (delta: 22.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 06:53:57,011 INFO L158 Benchmark]: TraceAbstraction took 732456.73ms. Allocated memory was 96.5MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 48.7MB in the beginning and 734.7MB in the end (delta: -686.1MB). Peak memory consumption was 374.4MB. Max. memory is 16.1GB. [2023-11-29 06:53:57,011 INFO L158 Benchmark]: Witness Printer took 117.85ms. Allocated memory is still 1.2GB. Free memory was 734.7MB in the beginning and 727.4MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 06:53:57,013 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 75.5MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.83ms. Allocated memory is still 75.5MB. Free memory was 51.9MB in the beginning and 37.0MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.48ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 37.0MB in the beginning and 74.7MB in the end (delta: -37.8MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.31ms. Allocated memory is still 96.5MB. Free memory was 74.7MB in the beginning and 71.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 429.74ms. Allocated memory is still 96.5MB. Free memory was 71.7MB in the beginning and 49.3MB in the end (delta: 22.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 732456.73ms. Allocated memory was 96.5MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 48.7MB in the beginning and 734.7MB in the end (delta: -686.1MB). Peak memory consumption was 374.4MB. Max. memory is 16.1GB. * Witness Printer took 117.85ms. Allocated memory is still 1.2GB. Free memory was 734.7MB in the beginning and 727.4MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_#t~nondet9#1_20 : bv8 :: ~bvand~32(~zero_extend~32~8(v_ULTIMATE.start_main_#t~nondet9#1_20), 1bv32)[7:0] == ~input_3~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_#t~nondet8#1_20 : bv8 :: ~bvand~32(~zero_extend~32~8(v_ULTIMATE.start_main_#t~nondet8#1_20), 1bv32)[7:0] == ~input_2~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_44_arg_1~0#1 : bv8 :: ~state_16~0 == ~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_44_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] && ~state_29~0 == ~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_44_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_20_arg_2~0#1 : bv8 :: ~bvand~32(~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]), 7bv32)[7:0] == ~var_31~0 && ~bvand~32(~zero_extend~32~8(~zero_extend~32~8(ULTIMATE.start_main_~var_20_arg_2~0#1)[7:0]), 7bv32)[7:0] == ~var_20~0) could not be translated * 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 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 732.4s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 87 IncrementalHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 4 mSDtfsCounter, 87 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 133.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=2, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 4 NumberOfFragments, 158 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 40 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 730.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 14 QuantifiedInterpolants, 720404 SizeOfPredicates, 194 NumberOfNonLiveVariables, 588 ConjunctsInSsa, 192 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/18 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: ((((((((((((1 == mask_SORT_1) && (1 == var_39)) && (4 == var_23)) && (7 == mask_SORT_5)) && (0 == state_12)) && (0 == state_18)) && (mask_SORT_26 == 3)) && (var_15 == 0)) && (var_21 == 5)) && (var_11 == 0)) || ((((((((((1 == mask_SORT_1) && (1 == var_39)) && (4 == var_23)) && (1 == state_12)) && (1 == state_18)) && (7 == mask_SORT_5)) && (mask_SORT_26 == 3)) && (var_15 == 0)) && (var_21 == 5)) && (var_11 == 0))) || ((((((((((1 == mask_SORT_1) && (1 == var_39)) && (4 == var_23)) && (1 == state_12)) && (7 == mask_SORT_5)) && (0 == state_18)) && (mask_SORT_26 == 3)) && (var_15 == 0)) && (var_21 == 5)) && (var_11 == 0))) RESULT: Ultimate proved your program to be correct! [2023-11-29 06:53:57,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2ddfe0-d49e-4361-9b61-3f855b7b224a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE