./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.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_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/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_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/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_4065c858-3dbe-4067-a055-3daea984be5a/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 53546c4dcb2cff2eaca8f311738b2b6b829a702db585862ee7ca5a0b611bb252 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:05:59,052 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:05:59,118 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 03:05:59,122 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:05:59,123 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:05:59,147 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:05:59,148 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:05:59,149 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:05:59,150 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:05:59,150 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:05:59,151 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:05:59,151 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:05:59,152 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:05:59,153 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:05:59,153 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:05:59,154 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:05:59,155 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:05:59,155 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:05:59,156 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:05:59,156 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:05:59,157 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:05:59,159 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:05:59,160 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:05:59,160 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:05:59,161 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:05:59,161 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:05:59,161 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:05:59,162 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:05:59,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:05:59,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:05:59,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:05:59,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:05:59,164 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:05:59,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:05:59,164 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:05:59,164 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:05:59,164 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:05:59,165 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:05:59,165 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:05:59,165 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_4065c858-3dbe-4067-a055-3daea984be5a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53546c4dcb2cff2eaca8f311738b2b6b829a702db585862ee7ca5a0b611bb252 [2023-11-29 03:05:59,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:05:59,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:05:59,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:05:59,432 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:05:59,434 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:05:59,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2023-11-29 03:06:02,286 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:06:02,507 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:06:02,508 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2023-11-29 03:06:02,519 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/data/858f25072/9942645d15684f538f77bce9a4ecd14f/FLAG89ff5cdde [2023-11-29 03:06:02,535 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/data/858f25072/9942645d15684f538f77bce9a4ecd14f [2023-11-29 03:06:02,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:06:02,540 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:06:02,541 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:06:02,542 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:06:02,547 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:06:02,548 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:06:02" (1/1) ... [2023-11-29 03:06:02,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1360e85d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:02, skipping insertion in model container [2023-11-29 03:06:02,549 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:06:02" (1/1) ... [2023-11-29 03:06:02,578 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:06:02,727 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_4065c858-3dbe-4067-a055-3daea984be5a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c[1266,1279] [2023-11-29 03:06:02,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:06:02,786 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:06:02,799 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_4065c858-3dbe-4067-a055-3daea984be5a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c[1266,1279] [2023-11-29 03:06:02,828 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:06:02,843 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:06:02,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:02 WrapperNode [2023-11-29 03:06:02,844 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:06:02,845 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:06:02,845 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:06:02,845 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:06:02,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:02" (1/1) ... [2023-11-29 03:06:02,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:02" (1/1) ... [2023-11-29 03:06:02,901 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 283 [2023-11-29 03:06:02,901 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:06:02,902 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:06:02,902 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:06:02,902 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:06:02,913 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:02" (1/1) ... [2023-11-29 03:06:02,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:02" (1/1) ... [2023-11-29 03:06:02,918 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:02" (1/1) ... [2023-11-29 03:06:02,935 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 03:06:02,936 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:02" (1/1) ... [2023-11-29 03:06:02,936 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:02" (1/1) ... [2023-11-29 03:06:02,946 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:02" (1/1) ... [2023-11-29 03:06:02,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:02" (1/1) ... [2023-11-29 03:06:02,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:02" (1/1) ... [2023-11-29 03:06:02,956 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:02" (1/1) ... [2023-11-29 03:06:02,960 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:06:02,961 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:06:02,961 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:06:02,961 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:06:02,962 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:02" (1/1) ... [2023-11-29 03:06:02,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:06:02,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:06:02,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:06:02,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:06:03,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:06:03,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:06:03,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:06:03,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:06:03,132 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:06:03,134 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:06:03,468 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:06:03,515 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:06:03,515 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:06:03,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:06:03 BoogieIcfgContainer [2023-11-29 03:06:03,516 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:06:03,520 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:06:03,520 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:06:03,524 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:06:03,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:06:02" (1/3) ... [2023-11-29 03:06:03,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125042bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:06:03, skipping insertion in model container [2023-11-29 03:06:03,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:02" (2/3) ... [2023-11-29 03:06:03,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125042bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:06:03, skipping insertion in model container [2023-11-29 03:06:03,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:06:03" (3/3) ... [2023-11-29 03:06:03,527 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2023-11-29 03:06:03,548 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:06:03,549 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 03:06:03,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:06:03,607 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;@56f8b420, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:06:03,607 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 03:06:03,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 34 states have internal predecessors, (55), 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 03:06:03,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 03:06:03,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:06:03,620 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] [2023-11-29 03:06:03,621 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:06:03,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:06:03,627 INFO L85 PathProgramCache]: Analyzing trace with hash -2037151720, now seen corresponding path program 1 times [2023-11-29 03:06:03,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:06:03,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973708754] [2023-11-29 03:06:03,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:06:03,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:06:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:06:04,108 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 03:06:04,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:06:04,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973708754] [2023-11-29 03:06:04,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973708754] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:06:04,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:06:04,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:06:04,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616736267] [2023-11-29 03:06:04,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:06:04,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:06:04,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:06:04,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:06:04,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:06:04,145 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 34 states have internal predecessors, (55), 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 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 03:06:04,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:06:04,193 INFO L93 Difference]: Finished difference Result 60 states and 96 transitions. [2023-11-29 03:06:04,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:06:04,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2023-11-29 03:06:04,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:06:04,204 INFO L225 Difference]: With dead ends: 60 [2023-11-29 03:06:04,204 INFO L226 Difference]: Without dead ends: 35 [2023-11-29 03:06:04,207 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 03:06:04,211 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 1 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 139 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 03:06:04,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 139 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:06:04,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-29 03:06:04,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-29 03:06:04,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.5588235294117647) internal successors, (53), 34 states have internal predecessors, (53), 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 03:06:04,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 53 transitions. [2023-11-29 03:06:04,245 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 53 transitions. Word has length 20 [2023-11-29 03:06:04,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:06:04,246 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 53 transitions. [2023-11-29 03:06:04,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 03:06:04,246 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2023-11-29 03:06:04,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 03:06:04,247 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:06:04,247 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] [2023-11-29 03:06:04,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:06:04,248 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:06:04,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:06:04,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1274531164, now seen corresponding path program 1 times [2023-11-29 03:06:04,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:06:04,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182391794] [2023-11-29 03:06:04,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:06:04,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:06:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:06:04,390 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 03:06:04,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:06:04,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182391794] [2023-11-29 03:06:04,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182391794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:06:04,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:06:04,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:06:04,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551858375] [2023-11-29 03:06:04,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:06:04,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:06:04,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:06:04,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:06:04,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:06:04,395 INFO L87 Difference]: Start difference. First operand 35 states and 53 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 03:06:04,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:06:04,424 INFO L93 Difference]: Finished difference Result 63 states and 94 transitions. [2023-11-29 03:06:04,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:06:04,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2023-11-29 03:06:04,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:06:04,426 INFO L225 Difference]: With dead ends: 63 [2023-11-29 03:06:04,426 INFO L226 Difference]: Without dead ends: 38 [2023-11-29 03:06:04,427 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 03:06:04,428 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 1 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 137 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 03:06:04,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 137 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:06:04,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-29 03:06:04,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2023-11-29 03:06:04,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.5277777777777777) internal successors, (55), 36 states have internal predecessors, (55), 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 03:06:04,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 55 transitions. [2023-11-29 03:06:04,435 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 55 transitions. Word has length 21 [2023-11-29 03:06:04,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:06:04,435 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 55 transitions. [2023-11-29 03:06:04,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 03:06:04,436 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2023-11-29 03:06:04,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 03:06:04,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:06:04,437 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] [2023-11-29 03:06:04,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:06:04,437 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:06:04,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:06:04,438 INFO L85 PathProgramCache]: Analyzing trace with hash 645328050, now seen corresponding path program 1 times [2023-11-29 03:06:04,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:06:04,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782974384] [2023-11-29 03:06:04,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:06:04,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:06:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:06:04,735 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 03:06:04,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:06:04,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782974384] [2023-11-29 03:06:04,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782974384] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:06:04,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:06:04,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:06:04,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880762492] [2023-11-29 03:06:04,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:06:04,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:06:04,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:06:04,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:06:04,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:06:04,739 INFO L87 Difference]: Start difference. First operand 37 states and 55 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 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 03:06:04,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:06:04,891 INFO L93 Difference]: Finished difference Result 98 states and 144 transitions. [2023-11-29 03:06:04,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:06:04,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 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 22 [2023-11-29 03:06:04,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:06:04,893 INFO L225 Difference]: With dead ends: 98 [2023-11-29 03:06:04,894 INFO L226 Difference]: Without dead ends: 71 [2023-11-29 03:06:04,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:06:04,896 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 140 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:06:04,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 182 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:06:04,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-29 03:06:04,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 40. [2023-11-29 03:06:04,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.4871794871794872) internal successors, (58), 39 states have internal predecessors, (58), 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 03:06:04,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 58 transitions. [2023-11-29 03:06:04,905 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 58 transitions. Word has length 22 [2023-11-29 03:06:04,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:06:04,906 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 58 transitions. [2023-11-29 03:06:04,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 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 03:06:04,906 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2023-11-29 03:06:04,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 03:06:04,907 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:06:04,907 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] [2023-11-29 03:06:04,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 03:06:04,908 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:06:04,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:06:04,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1874631884, now seen corresponding path program 1 times [2023-11-29 03:06:04,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:06:04,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475549665] [2023-11-29 03:06:04,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:06:04,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:06:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:06:05,172 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 03:06:05,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:06:05,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475549665] [2023-11-29 03:06:05,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475549665] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:06:05,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:06:05,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:06:05,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375011819] [2023-11-29 03:06:05,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:06:05,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:06:05,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:06:05,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:06:05,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:06:05,175 INFO L87 Difference]: Start difference. First operand 40 states and 58 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 03:06:05,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:06:05,225 INFO L93 Difference]: Finished difference Result 74 states and 108 transitions. [2023-11-29 03:06:05,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:06:05,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2023-11-29 03:06:05,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:06:05,227 INFO L225 Difference]: With dead ends: 74 [2023-11-29 03:06:05,227 INFO L226 Difference]: Without dead ends: 44 [2023-11-29 03:06:05,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:06:05,229 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 65 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:06:05,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 100 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:06:05,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-29 03:06:05,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 37. [2023-11-29 03:06:05,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.5) internal successors, (54), 36 states have internal predecessors, (54), 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 03:06:05,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 54 transitions. [2023-11-29 03:06:05,236 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 54 transitions. Word has length 22 [2023-11-29 03:06:05,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:06:05,237 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 54 transitions. [2023-11-29 03:06:05,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 03:06:05,237 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2023-11-29 03:06:05,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-29 03:06:05,238 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:06:05,239 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] [2023-11-29 03:06:05,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 03:06:05,239 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:06:05,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:06:05,239 INFO L85 PathProgramCache]: Analyzing trace with hash -262787072, now seen corresponding path program 1 times [2023-11-29 03:06:05,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:06:05,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166123373] [2023-11-29 03:06:05,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:06:05,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:06:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:06:05,268 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 03:06:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:06:05,317 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 03:06:05,317 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 03:06:05,318 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 03:06:05,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 03:06:05,323 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-29 03:06:05,327 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:06:05,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 03:06:05,356 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 03:06:05,356 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-29 03:06:05,356 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-29 03:06:05,357 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-29 03:06:05,357 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-29 03:06:05,360 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated [2023-11-29 03:06:05,362 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet36 could not be translated [2023-11-29 03:06:05,363 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet37 could not be translated [2023-11-29 03:06:05,365 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet38 could not be translated [2023-11-29 03:06:05,367 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet39 could not be translated [2023-11-29 03:06:05,368 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-29 03:06:05,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:06:05 BoogieIcfgContainer [2023-11-29 03:06:05,382 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:06:05,383 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:06:05,383 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:06:05,383 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:06:05,384 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:06:03" (3/4) ... [2023-11-29 03:06:05,386 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 03:06:05,387 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:06:05,387 INFO L158 Benchmark]: Toolchain (without parser) took 2847.34ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 94.9MB in the beginning and 108.1MB in the end (delta: -13.2MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2023-11-29 03:06:05,388 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 134.2MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:06:05,388 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.77ms. Allocated memory is still 134.2MB. Free memory was 94.9MB in the beginning and 81.9MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 03:06:05,389 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.38ms. Allocated memory is still 134.2MB. Free memory was 81.9MB in the beginning and 77.3MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 03:06:05,389 INFO L158 Benchmark]: Boogie Preprocessor took 58.53ms. Allocated memory is still 134.2MB. Free memory was 77.3MB in the beginning and 73.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:06:05,390 INFO L158 Benchmark]: RCFGBuilder took 555.27ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 73.9MB in the beginning and 143.7MB in the end (delta: -69.7MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2023-11-29 03:06:05,390 INFO L158 Benchmark]: TraceAbstraction took 1862.43ms. Allocated memory is still 176.2MB. Free memory was 142.6MB in the beginning and 109.2MB in the end (delta: 33.4MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2023-11-29 03:06:05,391 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 176.2MB. Free memory was 109.2MB in the beginning and 108.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:06:05,393 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 134.2MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.77ms. Allocated memory is still 134.2MB. Free memory was 94.9MB in the beginning and 81.9MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.38ms. Allocated memory is still 134.2MB. Free memory was 81.9MB in the beginning and 77.3MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.53ms. Allocated memory is still 134.2MB. Free memory was 77.3MB in the beginning and 73.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 555.27ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 73.9MB in the beginning and 143.7MB in the end (delta: -69.7MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1862.43ms. Allocated memory is still 176.2MB. Free memory was 142.6MB in the beginning and 109.2MB in the end (delta: 33.4MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 176.2MB. Free memory was 109.2MB in the beginning and 108.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 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~nondet35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet39 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 126. 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_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L32] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L33] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L35] const SORT_32 mask_SORT_32 = (SORT_32)-1 >> (sizeof(SORT_32) * 8 - 4); [L36] const SORT_32 msb_SORT_32 = (SORT_32)1 << (4 - 1); [L38] const SORT_68 mask_SORT_68 = (SORT_68)-1 >> (sizeof(SORT_68) * 8 - 10); [L39] const SORT_68 msb_SORT_68 = (SORT_68)1 << (10 - 1); [L41] const SORT_1 var_7 = 0; [L42] const SORT_10 var_12 = 0; [L43] const SORT_1 var_22 = 1; [L45] SORT_1 input_2; [L46] SORT_3 input_4; [L47] SORT_1 input_5; [L48] SORT_1 input_6; [L49] SORT_1 input_28; [L50] SORT_1 input_30; [L51] SORT_32 input_33; [L52] SORT_1 input_35; [L53] SORT_32 input_37; [L54] SORT_1 input_39; [L55] SORT_1 input_41; [L56] SORT_1 input_43; [L57] SORT_1 input_45; [L58] SORT_1 input_47; [L59] SORT_1 input_49; [L60] SORT_1 input_51; [L61] SORT_1 input_53; [L62] SORT_3 input_55; [L63] SORT_1 input_58; [L64] SORT_1 input_60; [L65] SORT_1 input_62; [L66] SORT_1 input_64; [L67] SORT_1 input_66; [L68] SORT_68 input_69; [L69] SORT_1 input_71; [L71] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_68=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_68=512, var_12=0, var_22=1, var_7=0] [L71] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_68=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_68=512, state_8=0, var_12=0, var_22=1, var_7=0] [L72] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L73] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_68=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_68=512, state_15=0, state_8=0, var_12=0, var_22=1, var_7=0] [L73] SORT_1 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 init_9_arg_1 = var_7; [L76] state_8 = init_9_arg_1 [L77] SORT_1 init_16_arg_1 = var_7; [L78] state_15 = init_16_arg_1 [L79] SORT_1 init_27_arg_1 = var_7; [L80] state_26 = init_27_arg_1 VAL [init_16_arg_1=0, init_27_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_68=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_68=512, state_15=0, state_26=0, state_8=0, var_12=0, var_22=1, var_7=0] [L83] input_2 = __VERIFIER_nondet_uchar() [L84] input_4 = __VERIFIER_nondet_uchar() [L85] input_5 = __VERIFIER_nondet_uchar() [L86] input_6 = __VERIFIER_nondet_uchar() [L87] input_28 = __VERIFIER_nondet_uchar() [L88] input_30 = __VERIFIER_nondet_uchar() [L89] input_33 = __VERIFIER_nondet_uchar() [L90] input_35 = __VERIFIER_nondet_uchar() [L91] input_37 = __VERIFIER_nondet_uchar() [L92] input_39 = __VERIFIER_nondet_uchar() [L93] input_41 = __VERIFIER_nondet_uchar() [L94] input_43 = __VERIFIER_nondet_uchar() [L95] input_45 = __VERIFIER_nondet_uchar() [L96] input_47 = __VERIFIER_nondet_uchar() [L97] input_49 = __VERIFIER_nondet_uchar() [L98] input_51 = __VERIFIER_nondet_uchar() [L99] input_53 = __VERIFIER_nondet_uchar() [L100] input_55 = __VERIFIER_nondet_uchar() [L101] input_58 = __VERIFIER_nondet_uchar() [L102] input_60 = __VERIFIER_nondet_uchar() [L103] input_62 = __VERIFIER_nondet_uchar() [L104] input_64 = __VERIFIER_nondet_uchar() [L105] input_66 = __VERIFIER_nondet_uchar() [L106] input_69 = __VERIFIER_nondet_ushort() [L107] input_71 = __VERIFIER_nondet_uchar() [L110] SORT_1 var_11_arg_0 = state_8; VAL [init_16_arg_1=0, init_27_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_68=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_68=512, state_15=0, state_26=0, state_8=0, var_11_arg_0=0, var_12=0, var_22=1, var_7=0] [L111] EXPR var_11_arg_0 & mask_SORT_1 VAL [init_16_arg_1=0, init_27_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_68=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_68=512, state_15=0, state_26=0, state_8=0, var_11_arg_0=0, var_12=0, var_22=1, var_7=0] [L111] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L112] SORT_10 var_11 = var_11_arg_0; [L113] SORT_10 var_13_arg_0 = var_11; [L114] SORT_10 var_13_arg_1 = var_12; [L115] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L116] SORT_1 var_14_arg_0 = var_13; [L117] SORT_1 var_14 = ~var_14_arg_0; [L118] SORT_1 var_17_arg_0 = state_15; VAL [init_16_arg_1=0, init_27_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_68=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_68=512, state_15=0, state_26=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_14=254, var_14_arg_0=1, var_17_arg_0=0, var_22=1, var_7=0] [L119] EXPR var_17_arg_0 & mask_SORT_1 VAL [init_16_arg_1=0, init_27_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_68=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_68=512, state_15=0, state_26=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_14=254, var_14_arg_0=1, var_17_arg_0=0, var_22=1, var_7=0] [L119] var_17_arg_0 = var_17_arg_0 & mask_SORT_1 [L120] SORT_10 var_17 = var_17_arg_0; [L121] SORT_10 var_18_arg_0 = var_17; [L122] SORT_10 var_18_arg_1 = var_12; [L123] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L124] SORT_1 var_19_arg_0 = var_14; [L125] SORT_1 var_19_arg_1 = var_18; VAL [init_16_arg_1=0, init_27_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_68=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_68=512, state_15=0, state_26=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_14=254, var_14_arg_0=1, var_17=0, var_17_arg_0=0, var_18=1, var_18_arg_0=0, var_18_arg_1=0, var_19_arg_0=254, var_19_arg_1=1, var_22=1, var_7=0] [L126] EXPR var_19_arg_0 | var_19_arg_1 VAL [init_16_arg_1=0, init_27_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_68=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_68=512, state_15=0, state_26=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_14=254, var_14_arg_0=1, var_17=0, var_17_arg_0=0, var_18=1, var_18_arg_0=0, var_18_arg_1=0, var_19_arg_0=254, var_19_arg_1=1, var_22=1, var_7=0] [L126] SORT_1 var_19 = var_19_arg_0 | var_19_arg_1; [L127] SORT_1 var_23_arg_0 = var_19; [L128] SORT_1 var_23 = ~var_23_arg_0; [L129] SORT_1 var_24_arg_0 = var_22; [L130] SORT_1 var_24_arg_1 = var_23; VAL [init_16_arg_1=0, init_27_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_68=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_68=512, state_15=0, state_26=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_14=254, var_14_arg_0=1, var_17=0, var_17_arg_0=0, var_18=1, var_18_arg_0=0, var_18_arg_1=0, var_19=254, var_19_arg_0=254, var_19_arg_1=1, var_22=1, var_23=1, var_23_arg_0=254, var_24_arg_0=1, var_24_arg_1=1, var_7=0] [L131] EXPR var_24_arg_0 & var_24_arg_1 VAL [init_16_arg_1=0, init_27_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_68=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_68=512, state_15=0, state_26=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_14=254, var_14_arg_0=1, var_17=0, var_17_arg_0=0, var_18=1, var_18_arg_0=0, var_18_arg_1=0, var_19=254, var_19_arg_0=254, var_19_arg_1=1, var_22=1, var_23=1, var_23_arg_0=254, var_24_arg_0=1, var_24_arg_1=1, var_7=0] [L131] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L132] EXPR var_24 & mask_SORT_1 VAL [init_16_arg_1=0, init_27_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_32=15, mask_SORT_3=255, mask_SORT_68=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_32=8, msb_SORT_3=128, msb_SORT_68=512, state_15=0, state_26=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_14=254, var_14_arg_0=1, var_17=0, var_17_arg_0=0, var_18=1, var_18_arg_0=0, var_18_arg_1=0, var_19=254, var_19_arg_0=254, var_19_arg_1=1, var_22=1, var_23=1, var_23_arg_0=254, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_7=0] [L132] var_24 = var_24 & mask_SORT_1 [L133] SORT_1 bad_25_arg_0 = var_24; [L134] CALL __VERIFIER_assert(!(bad_25_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, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 207 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 207 mSDsluCounter, 558 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 354 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 204 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=3, 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, 4 MinimizatonAttempts, 39 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 235 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 03:06:05,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/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_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/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_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/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_4065c858-3dbe-4067-a055-3daea984be5a/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 53546c4dcb2cff2eaca8f311738b2b6b829a702db585862ee7ca5a0b611bb252 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:06:07,382 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:06:07,449 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-29 03:06:07,455 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:06:07,456 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:06:07,482 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:06:07,483 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:06:07,484 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:06:07,484 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:06:07,485 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:06:07,485 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:06:07,486 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:06:07,487 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:06:07,487 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:06:07,488 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:06:07,488 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:06:07,489 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:06:07,489 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:06:07,490 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:06:07,490 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:06:07,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:06:07,491 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 03:06:07,492 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 03:06:07,492 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 03:06:07,493 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:06:07,493 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:06:07,494 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:06:07,494 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:06:07,494 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:06:07,495 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:06:07,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:06:07,496 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:06:07,496 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:06:07,496 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:06:07,496 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 03:06:07,497 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 03:06:07,497 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:06:07,497 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:06:07,497 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:06:07,498 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:06:07,498 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:06:07,498 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 03:06:07,498 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_4065c858-3dbe-4067-a055-3daea984be5a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53546c4dcb2cff2eaca8f311738b2b6b829a702db585862ee7ca5a0b611bb252 [2023-11-29 03:06:07,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:06:07,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:06:07,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:06:07,825 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:06:07,825 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:06:07,826 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2023-11-29 03:06:10,694 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:06:10,859 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:06:10,859 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2023-11-29 03:06:10,868 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/data/d99169385/0ca1f8511bf342b6873a328b4e584dc3/FLAG711b1f7d9 [2023-11-29 03:06:10,883 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/data/d99169385/0ca1f8511bf342b6873a328b4e584dc3 [2023-11-29 03:06:10,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:06:10,887 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:06:10,889 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:06:10,889 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:06:10,894 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:06:10,894 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:06:10" (1/1) ... [2023-11-29 03:06:10,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f55f5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:10, skipping insertion in model container [2023-11-29 03:06:10,896 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:06:10" (1/1) ... [2023-11-29 03:06:10,923 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:06:11,063 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_4065c858-3dbe-4067-a055-3daea984be5a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c[1266,1279] [2023-11-29 03:06:11,110 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:06:11,120 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:06:11,130 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_4065c858-3dbe-4067-a055-3daea984be5a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c[1266,1279] [2023-11-29 03:06:11,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:06:11,174 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:06:11,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:11 WrapperNode [2023-11-29 03:06:11,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:06:11,175 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:06:11,175 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:06:11,175 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:06:11,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:11" (1/1) ... [2023-11-29 03:06:11,191 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:11" (1/1) ... [2023-11-29 03:06:11,215 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 193 [2023-11-29 03:06:11,215 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:06:11,216 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:06:11,216 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:06:11,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:06:11,225 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:11" (1/1) ... [2023-11-29 03:06:11,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:11" (1/1) ... [2023-11-29 03:06:11,230 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:11" (1/1) ... [2023-11-29 03:06:11,244 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 03:06:11,245 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:11" (1/1) ... [2023-11-29 03:06:11,245 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:11" (1/1) ... [2023-11-29 03:06:11,253 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:11" (1/1) ... [2023-11-29 03:06:11,256 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:11" (1/1) ... [2023-11-29 03:06:11,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:11" (1/1) ... [2023-11-29 03:06:11,260 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:11" (1/1) ... [2023-11-29 03:06:11,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:06:11,265 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:06:11,265 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:06:11,265 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:06:11,266 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:11" (1/1) ... [2023-11-29 03:06:11,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:06:11,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:06:11,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:06:11,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:06:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:06:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 03:06:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:06:11,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:06:11,443 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:06:11,445 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:06:11,599 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:06:11,640 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:06:11,641 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:06:11,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:06:11 BoogieIcfgContainer [2023-11-29 03:06:11,641 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:06:11,644 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:06:11,644 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:06:11,647 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:06:11,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:06:10" (1/3) ... [2023-11-29 03:06:11,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1105d2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:06:11, skipping insertion in model container [2023-11-29 03:06:11,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:06:11" (2/3) ... [2023-11-29 03:06:11,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1105d2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:06:11, skipping insertion in model container [2023-11-29 03:06:11,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:06:11" (3/3) ... [2023-11-29 03:06:11,650 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p17.c [2023-11-29 03:06:11,669 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:06:11,669 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 03:06:11,714 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:06:11,721 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;@5da3a9e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:06:11,721 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 03:06:11,725 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 03:06:11,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 03:06:11,730 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:06:11,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 03:06:11,732 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:06:11,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:06:11,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-29 03:06:11,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:06:11,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089281575] [2023-11-29 03:06:11,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:06:11,749 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 03:06:11,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:06:11,751 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/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 03:06:11,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/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 03:06:11,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:06:11,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 03:06:11,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:06:12,056 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 03:06:12,057 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:06:12,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:06:12,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1089281575] [2023-11-29 03:06:12,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1089281575] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:06:12,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:06:12,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:06:12,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552249051] [2023-11-29 03:06:12,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:06:12,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:06:12,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:06:12,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:06:12,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:06:12,088 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 03:06:12,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:06:12,127 INFO L93 Difference]: Finished difference Result 11 states and 16 transitions. [2023-11-29 03:06:12,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:06:12,130 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 03:06:12,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:06:12,135 INFO L225 Difference]: With dead ends: 11 [2023-11-29 03:06:12,136 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 03:06:12,138 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 03:06:12,142 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:06:12,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:06:12,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 03:06:12,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 03:06:12,165 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 03:06:12,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 03:06:12,166 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2023-11-29 03:06:12,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:06:12,166 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 03:06:12,167 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 03:06:12,167 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 03:06:12,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 03:06:12,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 03:06:12,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/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 03:06:12,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/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 03:06:12,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 03:06:12,420 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 03:06:12,420 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-11-29 03:06:12,420 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-11-29 03:06:12,421 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-11-29 03:06:12,421 INFO L895 garLoopResultBuilder]: At program point L81-2(lines 81 156) the Hoare annotation is: (and (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|) (= (_ bv0 8) |ULTIMATE.start_main_~state_15~0#1|) (= |ULTIMATE.start_main_~var_12~0#1| (_ bv0 32))) [2023-11-29 03:06:12,421 INFO L899 garLoopResultBuilder]: For program point L81-3(lines 81 156) no Hoare annotation was computed. [2023-11-29 03:06:12,422 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 03:06:12,422 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2023-11-29 03:06:12,426 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 03:06:12,428 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:06:12,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:06:12 BoogieIcfgContainer [2023-11-29 03:06:12,437 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:06:12,438 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:06:12,438 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:06:12,438 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:06:12,439 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:06:11" (3/4) ... [2023-11-29 03:06:12,440 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 03:06:12,448 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-29 03:06:12,449 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 03:06:12,449 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 03:06:12,450 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 03:06:12,557 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 03:06:12,557 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 03:06:12,558 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:06:12,558 INFO L158 Benchmark]: Toolchain (without parser) took 1670.91ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 37.8MB in the beginning and 70.5MB in the end (delta: -32.7MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2023-11-29 03:06:12,559 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 69.2MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:06:12,559 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.86ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 37.4MB in the beginning and 67.3MB in the end (delta: -29.9MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2023-11-29 03:06:12,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.25ms. Allocated memory is still 94.4MB. Free memory was 67.3MB in the beginning and 64.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:06:12,561 INFO L158 Benchmark]: Boogie Preprocessor took 47.91ms. Allocated memory is still 94.4MB. Free memory was 64.9MB in the beginning and 62.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:06:12,562 INFO L158 Benchmark]: RCFGBuilder took 376.56ms. Allocated memory is still 94.4MB. Free memory was 62.6MB in the beginning and 71.1MB in the end (delta: -8.5MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2023-11-29 03:06:12,562 INFO L158 Benchmark]: TraceAbstraction took 793.39ms. Allocated memory is still 94.4MB. Free memory was 70.0MB in the beginning and 46.9MB in the end (delta: 23.1MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2023-11-29 03:06:12,563 INFO L158 Benchmark]: Witness Printer took 119.88ms. Allocated memory is still 94.4MB. Free memory was 46.4MB in the beginning and 70.5MB in the end (delta: -24.1MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2023-11-29 03:06:12,566 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 69.2MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.86ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 37.4MB in the beginning and 67.3MB in the end (delta: -29.9MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.25ms. Allocated memory is still 94.4MB. Free memory was 67.3MB in the beginning and 64.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.91ms. Allocated memory is still 94.4MB. Free memory was 64.9MB in the beginning and 62.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 376.56ms. Allocated memory is still 94.4MB. Free memory was 62.6MB in the beginning and 71.1MB in the end (delta: -8.5MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * TraceAbstraction took 793.39ms. Allocated memory is still 94.4MB. Free memory was 70.0MB in the beginning and 46.9MB in the end (delta: 23.1MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * Witness Printer took 119.88ms. Allocated memory is still 94.4MB. Free memory was 46.4MB in the beginning and 70.5MB in the end (delta: -24.1MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 10 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 20 NumberOfNonLiveVariables, 56 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 81]: Loop Invariant Derived loop invariant: (((1 == mask_SORT_1) && (0 == state_15)) && (var_12 == 0)) RESULT: Ultimate proved your program to be correct! [2023-11-29 03:06:12,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4065c858-3dbe-4067-a055-3daea984be5a/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