./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx --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 7eccc5bbdbaf49f286af1eaa6e037aac70bd43bbdd029365a1ddd6424cc3712f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:07:26,203 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:07:26,328 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:07:26,337 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:07:26,338 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:07:26,377 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:07:26,378 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:07:26,379 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:07:26,380 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:07:26,386 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:07:26,386 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:07:26,388 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:07:26,389 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:07:26,390 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:07:26,391 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:07:26,392 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:07:26,392 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:07:26,393 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:07:26,393 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:07:26,394 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:07:26,394 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:07:26,395 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:07:26,395 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:07:26,396 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:07:26,397 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:07:26,398 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:07:26,398 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:07:26,399 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:07:26,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:07:26,400 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:07:26,401 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:07:26,401 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:07:26,402 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:07:26,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:07:26,402 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:07:26,403 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:07:26,403 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:07:26,403 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:07:26,404 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:07:26,404 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_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7eccc5bbdbaf49f286af1eaa6e037aac70bd43bbdd029365a1ddd6424cc3712f [2023-11-21 22:07:26,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:07:26,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:07:26,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:07:26,726 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:07:26,727 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:07:26,728 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c [2023-11-21 22:07:29,841 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:07:30,245 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:07:30,246 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c [2023-11-21 22:07:30,265 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/data/38ad6add5/ac39f63c758e4a6eafb5c9e0f022b196/FLAG9a9f72681 [2023-11-21 22:07:30,284 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/data/38ad6add5/ac39f63c758e4a6eafb5c9e0f022b196 [2023-11-21 22:07:30,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:07:30,289 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:07:30,293 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:30,293 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:07:30,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:07:30,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:30" (1/1) ... [2023-11-21 22:07:30,300 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4615569d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:30, skipping insertion in model container [2023-11-21 22:07:30,301 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:30" (1/1) ... [2023-11-21 22:07:30,391 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:07:30,651 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_5a7532f9-b157-4fbf-b48e-fe9cbac93044/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c[1268,1281] [2023-11-21 22:07:31,229 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:31,240 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:07:31,254 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_5a7532f9-b157-4fbf-b48e-fe9cbac93044/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c[1268,1281] [2023-11-21 22:07:31,431 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:31,446 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:07:31,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31 WrapperNode [2023-11-21 22:07:31,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:31,449 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:07:31,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:07:31,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:07:31,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:31,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:32,167 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5443 [2023-11-21 22:07:32,168 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:07:32,169 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:07:32,169 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:07:32,169 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:07:32,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:32,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:32,387 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:32,553 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:07:32,553 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:32,553 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:32,774 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:32,812 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:32,938 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:32,978 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:33,076 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:07:33,078 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:07:33,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:07:33,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:07:33,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:33,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:07:33,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:07:33,118 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:07:33,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:07:33,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:07:33,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:07:33,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:07:33,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:07:33,794 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:07:33,797 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:07:37,702 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:07:48,045 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:07:48,046 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:07:48,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:07:48 BoogieIcfgContainer [2023-11-21 22:07:48,047 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:07:48,050 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:07:48,050 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:07:48,053 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:07:48,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:07:30" (1/3) ... [2023-11-21 22:07:48,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225a550d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:07:48, skipping insertion in model container [2023-11-21 22:07:48,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (2/3) ... [2023-11-21 22:07:48,055 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225a550d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:07:48, skipping insertion in model container [2023-11-21 22:07:48,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:07:48" (3/3) ... [2023-11-21 22:07:48,057 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c [2023-11-21 22:07:48,077 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:07:48,077 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:07:48,126 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:07:48,133 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;@1ffaca6e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:07:48,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:07:48,138 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:07:48,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 22:07:48,144 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:07:48,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 22:07:48,145 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:07:48,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:07:48,151 INFO L85 PathProgramCache]: Analyzing trace with hash 148198325, now seen corresponding path program 1 times [2023-11-21 22:07:48,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:07:48,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616083816] [2023-11-21 22:07:48,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:48,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:07:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:07:49,971 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:07:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:07:51,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:07:51,049 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:07:51,051 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:07:51,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:07:51,057 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:07:51,061 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:07:51,128 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-21 22:07:51,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:07:51 BoogieIcfgContainer [2023-11-21 22:07:51,164 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:07:51,167 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:07:51,167 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:07:51,168 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:07:51,168 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:07:48" (3/4) ... [2023-11-21 22:07:51,171 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:07:51,174 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:07:51,175 INFO L158 Benchmark]: Toolchain (without parser) took 20885.84ms. Allocated memory was 146.8MB in the beginning and 4.5GB in the end (delta: 4.4GB). Free memory was 102.6MB in the beginning and 4.2GB in the end (delta: -4.1GB). Peak memory consumption was 245.9MB. Max. memory is 16.1GB. [2023-11-21 22:07:51,176 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory is still 57.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:07:51,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1154.92ms. Allocated memory is still 146.8MB. Free memory was 102.2MB in the beginning and 54.1MB in the end (delta: 48.1MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2023-11-21 22:07:51,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 719.50ms. Allocated memory was 146.8MB in the beginning and 209.7MB in the end (delta: 62.9MB). Free memory was 54.1MB in the beginning and 78.1MB in the end (delta: -24.0MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. [2023-11-21 22:07:51,183 INFO L158 Benchmark]: Boogie Preprocessor took 908.09ms. Allocated memory is still 209.7MB. Free memory was 78.1MB in the beginning and 71.7MB in the end (delta: 6.4MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2023-11-21 22:07:51,185 INFO L158 Benchmark]: RCFGBuilder took 14970.03ms. Allocated memory was 209.7MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 71.7MB in the beginning and 1.6GB in the end (delta: -1.6GB). Peak memory consumption was 583.3MB. Max. memory is 16.1GB. [2023-11-21 22:07:51,186 INFO L158 Benchmark]: TraceAbstraction took 3114.42ms. Allocated memory was 2.1GB in the beginning and 4.5GB in the end (delta: 2.4GB). Free memory was 1.6GB in the beginning and 4.2GB in the end (delta: -2.6GB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:07:51,187 INFO L158 Benchmark]: Witness Printer took 6.97ms. Allocated memory is still 4.5GB. Free memory was 4.2GB in the beginning and 4.2GB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:07:51,192 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory is still 57.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1154.92ms. Allocated memory is still 146.8MB. Free memory was 102.2MB in the beginning and 54.1MB in the end (delta: 48.1MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 719.50ms. Allocated memory was 146.8MB in the beginning and 209.7MB in the end (delta: 62.9MB). Free memory was 54.1MB in the beginning and 78.1MB in the end (delta: -24.0MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 908.09ms. Allocated memory is still 209.7MB. Free memory was 78.1MB in the beginning and 71.7MB in the end (delta: 6.4MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. * RCFGBuilder took 14970.03ms. Allocated memory was 209.7MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 71.7MB in the beginning and 1.6GB in the end (delta: -1.6GB). Peak memory consumption was 583.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3114.42ms. Allocated memory was 2.1GB in the beginning and 4.5GB in the end (delta: 2.4GB). Free memory was 1.6GB in the beginning and 4.2GB in the end (delta: -2.6GB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.97ms. Allocated memory is still 4.5GB. Free memory was 4.2GB in the beginning and 4.2GB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 344, overapproximation of bitwiseAnd at line 244. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 2); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (2 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L32] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 3); [L33] const SORT_6 msb_SORT_6 = (SORT_6)1 << (3 - 1); [L35] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 4); [L36] const SORT_12 msb_SORT_12 = (SORT_12)1 << (4 - 1); [L38] const SORT_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 8); [L39] const SORT_16 msb_SORT_16 = (SORT_16)1 << (8 - 1); [L41] const SORT_21 mask_SORT_21 = (SORT_21)-1 >> (sizeof(SORT_21) * 8 - 7); [L42] const SORT_21 msb_SORT_21 = (SORT_21)1 << (7 - 1); [L44] const SORT_21 var_22 = 1; [L45] const SORT_21 var_26 = 2; [L46] const SORT_21 var_29 = 4; [L47] const SORT_21 var_33 = 8; [L48] const SORT_21 var_37 = 0; [L49] const SORT_21 var_46 = 16; [L50] const SORT_21 var_49 = 32; [L51] const SORT_21 var_52 = 64; [L52] const SORT_3 var_57 = 1; [L53] const SORT_3 var_61 = 0; [L54] const SORT_6 var_146 = 0; [L56] SORT_1 input_2; [L57] SORT_3 input_4; [L58] SORT_3 input_5; [L59] SORT_6 input_7; [L60] SORT_3 input_8; [L61] SORT_3 input_9; [L62] SORT_3 input_10; [L63] SORT_3 input_11; [L64] SORT_12 input_13; [L65] SORT_3 input_14; [L66] SORT_3 input_15; [L67] SORT_16 input_17; [L68] SORT_3 input_18; [L69] SORT_3 input_19; [L70] SORT_3 input_20; [L71] SORT_3 input_368; [L72] SORT_3 input_390; [L73] SORT_3 input_405; [L74] SORT_3 input_420; [L75] SORT_3 input_435; [L76] SORT_3 input_450; [L77] SORT_3 input_465; [L78] SORT_3 input_480; [L79] SORT_3 input_495; [L80] SORT_3 input_510; [L81] SORT_3 input_525; [L82] SORT_3 input_540; [L83] SORT_3 input_555; [L84] SORT_3 input_570; [L85] SORT_3 input_585; [L86] SORT_3 input_600; [L87] SORT_3 input_616; [L88] SORT_3 input_618; [L89] SORT_3 input_620; [L90] SORT_3 input_622; [L91] SORT_3 input_624; [L92] SORT_3 input_626; [L93] SORT_3 input_628; [L94] SORT_3 input_630; [L95] SORT_3 input_635; [L96] SORT_21 input_676; [L97] SORT_21 input_677; [L98] SORT_21 input_678; [L99] SORT_21 input_679; [L100] SORT_21 input_682; [L101] SORT_21 input_686; [L102] SORT_21 input_690; [L103] SORT_21 input_698; [L104] SORT_21 input_702; [L105] SORT_21 input_704; [L106] SORT_21 input_708; [L107] SORT_21 input_711; [L108] SORT_21 input_715; [L109] SORT_21 input_720; [L110] SORT_21 input_724; [L111] SORT_21 input_729; [L112] SORT_21 input_731; [L113] SORT_21 input_732; [L114] SORT_21 input_734; [L115] SORT_21 input_738; [L116] SORT_21 input_743; [L117] SORT_21 input_750; [L118] SORT_21 input_751; [L119] SORT_21 input_753; [L120] SORT_21 input_757; [L121] SORT_21 input_762; [L122] SORT_21 input_764; [L123] SORT_21 input_765; [L124] SORT_21 input_767; [L125] SORT_21 input_771; [L126] SORT_21 input_776; [L127] SORT_21 input_780; [L128] SORT_21 input_785; [L129] SORT_21 input_787; [L130] SORT_21 input_793; [L131] SORT_21 input_805; [L132] SORT_3 input_810; [L133] SORT_3 input_819; [L134] SORT_3 input_838; [L135] SORT_3 input_845; [L136] SORT_3 input_856; [L137] SORT_3 input_862; [L138] SORT_3 input_868; [L139] SORT_3 input_874; [L140] SORT_3 input_880; [L141] SORT_3 input_886; [L142] SORT_3 input_892; [L143] SORT_3 input_898; [L144] SORT_3 input_904; [L145] SORT_3 input_910; [L146] SORT_3 input_916; [L147] SORT_3 input_922; [L148] SORT_3 input_928; [L150] EXPR __VERIFIER_nondet_uchar() & mask_SORT_21 [L150] SORT_21 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_21; [L151] EXPR __VERIFIER_nondet_uchar() & mask_SORT_21 [L151] SORT_21 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_21; [L152] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L152] SORT_3 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L153] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L153] SORT_3 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L154] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L154] SORT_3 state_66 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L155] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L155] SORT_3 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L156] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L156] SORT_3 state_74 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L157] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L157] SORT_3 state_78 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L158] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L158] SORT_3 state_94 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L159] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L159] SORT_3 state_111 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L160] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L160] SORT_3 state_114 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L161] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L161] SORT_3 state_116 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L162] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L162] SORT_3 state_120 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L163] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L163] SORT_3 state_124 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L164] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L164] SORT_3 state_129 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L165] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L165] SORT_3 state_132 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L166] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L166] SORT_3 state_142 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L167] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L167] SORT_3 state_149 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L168] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L168] SORT_3 state_152 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L169] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L169] SORT_3 state_161 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L170] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L170] SORT_3 state_166 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L171] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L171] SORT_3 state_169 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L172] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L172] SORT_3 state_181 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L173] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L173] SORT_3 state_191 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L174] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L174] SORT_3 state_196 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L175] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L175] SORT_3 state_199 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L176] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L176] SORT_3 state_208 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L177] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L177] SORT_3 state_221 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L178] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L178] SORT_3 state_234 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L180] SORT_21 init_24_arg_1 = var_22; [L181] state_23 = init_24_arg_1 [L182] SORT_21 init_32_arg_1 = var_22; [L183] state_31 = init_32_arg_1 [L184] SORT_3 init_63_arg_1 = var_61; [L185] state_62 = init_63_arg_1 [L186] SORT_3 init_65_arg_1 = var_61; [L187] state_64 = init_65_arg_1 [L188] SORT_3 init_67_arg_1 = var_61; [L189] state_66 = init_67_arg_1 [L190] SORT_3 init_71_arg_1 = var_61; [L191] state_70 = init_71_arg_1 [L192] SORT_3 init_75_arg_1 = var_61; [L193] state_74 = init_75_arg_1 [L194] SORT_3 init_79_arg_1 = var_61; [L195] state_78 = init_79_arg_1 [L196] SORT_3 init_95_arg_1 = var_61; [L197] state_94 = init_95_arg_1 [L198] SORT_3 init_112_arg_1 = var_61; [L199] state_111 = init_112_arg_1 [L200] SORT_3 init_115_arg_1 = var_61; [L201] state_114 = init_115_arg_1 [L202] SORT_3 init_117_arg_1 = var_61; [L203] state_116 = init_117_arg_1 [L204] SORT_3 init_121_arg_1 = var_61; [L205] state_120 = init_121_arg_1 [L206] SORT_3 init_125_arg_1 = var_61; [L207] state_124 = init_125_arg_1 [L208] SORT_3 init_130_arg_1 = var_61; [L209] state_129 = init_130_arg_1 [L210] SORT_3 init_133_arg_1 = var_61; [L211] state_132 = init_133_arg_1 [L212] SORT_3 init_143_arg_1 = var_61; [L213] state_142 = init_143_arg_1 [L214] SORT_3 init_150_arg_1 = var_61; [L215] state_149 = init_150_arg_1 [L216] SORT_3 init_153_arg_1 = var_61; [L217] state_152 = init_153_arg_1 [L218] SORT_3 init_162_arg_1 = var_61; [L219] state_161 = init_162_arg_1 [L220] SORT_3 init_167_arg_1 = var_61; [L221] state_166 = init_167_arg_1 [L222] SORT_3 init_170_arg_1 = var_61; [L223] state_169 = init_170_arg_1 [L224] SORT_3 init_182_arg_1 = var_61; [L225] state_181 = init_182_arg_1 [L226] SORT_3 init_192_arg_1 = var_61; [L227] state_191 = init_192_arg_1 [L228] SORT_3 init_197_arg_1 = var_61; [L229] state_196 = init_197_arg_1 [L230] SORT_3 init_200_arg_1 = var_61; [L231] state_199 = init_200_arg_1 [L232] SORT_3 init_209_arg_1 = var_61; [L233] state_208 = init_209_arg_1 [L234] SORT_3 init_222_arg_1 = var_61; [L235] state_221 = init_222_arg_1 [L236] SORT_3 init_235_arg_1 = var_61; [L237] state_234 = init_235_arg_1 VAL [init_112_arg_1=0, init_115_arg_1=0, init_117_arg_1=0, init_121_arg_1=0, init_125_arg_1=0, init_130_arg_1=0, init_133_arg_1=0, init_143_arg_1=0, init_150_arg_1=0, init_153_arg_1=0, init_162_arg_1=0, init_167_arg_1=0, init_170_arg_1=0, init_182_arg_1=0, init_192_arg_1=0, init_197_arg_1=0, init_200_arg_1=0, init_209_arg_1=0, init_222_arg_1=0, init_235_arg_1=0, init_24_arg_1=1, init_32_arg_1=1, init_63_arg_1=0, init_65_arg_1=0, init_67_arg_1=0, init_71_arg_1=0, init_75_arg_1=0, init_79_arg_1=0, init_95_arg_1=0, mask_SORT_12=15, mask_SORT_16=255, mask_SORT_1=3, mask_SORT_21=127, mask_SORT_3=1, mask_SORT_6=7, msb_SORT_12=8, msb_SORT_16=128, msb_SORT_1=2, msb_SORT_21=64, msb_SORT_3=1, msb_SORT_6=4, state_111=0, state_114=0, state_116=0, state_120=0, state_124=0, state_129=0, state_132=0, state_142=0, state_149=0, state_152=0, state_161=0, state_166=0, state_169=0, state_181=0, state_191=0, state_196=0, state_199=0, state_208=0, state_221=0, state_234=0, state_23=1, state_31=1, state_62=0, state_64=0, state_66=0, state_70=0, state_74=0, state_78=0, state_94=0, var_146=0, var_22=1, var_26=2, var_29=4, var_33=8, var_37=0, var_46=16, var_49=32, var_52=64, var_57=1, var_61=0] [L240] input_2 = __VERIFIER_nondet_uchar() [L241] input_4 = __VERIFIER_nondet_uchar() [L242] input_5 = __VERIFIER_nondet_uchar() [L243] input_7 = __VERIFIER_nondet_uchar() [L244] EXPR input_7 & mask_SORT_6 [L244] input_7 = input_7 & mask_SORT_6 [L245] input_8 = __VERIFIER_nondet_uchar() [L246] input_9 = __VERIFIER_nondet_uchar() [L247] input_10 = __VERIFIER_nondet_uchar() [L248] input_11 = __VERIFIER_nondet_uchar() [L249] input_13 = __VERIFIER_nondet_uchar() [L250] input_14 = __VERIFIER_nondet_uchar() [L251] input_15 = __VERIFIER_nondet_uchar() [L252] input_17 = __VERIFIER_nondet_uchar() [L253] input_18 = __VERIFIER_nondet_uchar() [L254] input_19 = __VERIFIER_nondet_uchar() [L255] input_20 = __VERIFIER_nondet_uchar() [L256] input_368 = __VERIFIER_nondet_uchar() [L257] input_390 = __VERIFIER_nondet_uchar() [L258] input_405 = __VERIFIER_nondet_uchar() [L259] input_420 = __VERIFIER_nondet_uchar() [L260] input_435 = __VERIFIER_nondet_uchar() [L261] input_450 = __VERIFIER_nondet_uchar() [L262] input_465 = __VERIFIER_nondet_uchar() [L263] input_480 = __VERIFIER_nondet_uchar() [L264] input_495 = __VERIFIER_nondet_uchar() [L265] input_510 = __VERIFIER_nondet_uchar() [L266] input_525 = __VERIFIER_nondet_uchar() [L267] input_540 = __VERIFIER_nondet_uchar() [L268] input_555 = __VERIFIER_nondet_uchar() [L269] input_570 = __VERIFIER_nondet_uchar() [L270] input_585 = __VERIFIER_nondet_uchar() [L271] input_600 = __VERIFIER_nondet_uchar() [L272] input_616 = __VERIFIER_nondet_uchar() [L273] input_618 = __VERIFIER_nondet_uchar() [L274] input_620 = __VERIFIER_nondet_uchar() [L275] input_622 = __VERIFIER_nondet_uchar() [L276] input_624 = __VERIFIER_nondet_uchar() [L277] input_626 = __VERIFIER_nondet_uchar() [L278] input_628 = __VERIFIER_nondet_uchar() [L279] input_630 = __VERIFIER_nondet_uchar() [L280] input_635 = __VERIFIER_nondet_uchar() [L281] input_676 = __VERIFIER_nondet_uchar() [L282] input_677 = __VERIFIER_nondet_uchar() [L283] input_678 = __VERIFIER_nondet_uchar() [L284] input_679 = __VERIFIER_nondet_uchar() [L285] input_682 = __VERIFIER_nondet_uchar() [L286] input_686 = __VERIFIER_nondet_uchar() [L287] input_690 = __VERIFIER_nondet_uchar() [L288] input_698 = __VERIFIER_nondet_uchar() [L289] input_702 = __VERIFIER_nondet_uchar() [L290] input_704 = __VERIFIER_nondet_uchar() [L291] input_708 = __VERIFIER_nondet_uchar() [L292] input_711 = __VERIFIER_nondet_uchar() [L293] input_715 = __VERIFIER_nondet_uchar() [L294] input_720 = __VERIFIER_nondet_uchar() [L295] input_724 = __VERIFIER_nondet_uchar() [L296] input_729 = __VERIFIER_nondet_uchar() [L297] input_731 = __VERIFIER_nondet_uchar() [L298] input_732 = __VERIFIER_nondet_uchar() [L299] input_734 = __VERIFIER_nondet_uchar() [L300] input_738 = __VERIFIER_nondet_uchar() [L301] input_743 = __VERIFIER_nondet_uchar() [L302] input_750 = __VERIFIER_nondet_uchar() [L303] input_751 = __VERIFIER_nondet_uchar() [L304] input_753 = __VERIFIER_nondet_uchar() [L305] input_757 = __VERIFIER_nondet_uchar() [L306] input_762 = __VERIFIER_nondet_uchar() [L307] input_764 = __VERIFIER_nondet_uchar() [L308] input_765 = __VERIFIER_nondet_uchar() [L309] input_767 = __VERIFIER_nondet_uchar() [L310] input_771 = __VERIFIER_nondet_uchar() [L311] input_776 = __VERIFIER_nondet_uchar() [L312] input_780 = __VERIFIER_nondet_uchar() [L313] input_785 = __VERIFIER_nondet_uchar() [L314] input_787 = __VERIFIER_nondet_uchar() [L315] input_793 = __VERIFIER_nondet_uchar() [L316] input_805 = __VERIFIER_nondet_uchar() [L317] input_810 = __VERIFIER_nondet_uchar() [L318] input_819 = __VERIFIER_nondet_uchar() [L319] input_838 = __VERIFIER_nondet_uchar() [L320] input_845 = __VERIFIER_nondet_uchar() [L321] input_856 = __VERIFIER_nondet_uchar() [L322] input_862 = __VERIFIER_nondet_uchar() [L323] input_868 = __VERIFIER_nondet_uchar() [L324] input_874 = __VERIFIER_nondet_uchar() [L325] input_880 = __VERIFIER_nondet_uchar() [L326] input_886 = __VERIFIER_nondet_uchar() [L327] input_892 = __VERIFIER_nondet_uchar() [L328] input_898 = __VERIFIER_nondet_uchar() [L329] input_904 = __VERIFIER_nondet_uchar() [L330] input_910 = __VERIFIER_nondet_uchar() [L331] input_916 = __VERIFIER_nondet_uchar() [L332] input_922 = __VERIFIER_nondet_uchar() [L333] input_928 = __VERIFIER_nondet_uchar() [L336] SORT_21 var_25_arg_0 = state_23; [L337] SORT_21 var_25_arg_1 = var_22; [L338] SORT_3 var_25 = var_25_arg_0 == var_25_arg_1; [L339] SORT_21 var_27_arg_0 = state_23; [L340] SORT_21 var_27_arg_1 = var_26; [L341] SORT_3 var_27 = var_27_arg_0 == var_27_arg_1; [L342] SORT_3 var_28_arg_0 = var_25; [L343] SORT_3 var_28_arg_1 = var_27; [L344] EXPR var_28_arg_0 | var_28_arg_1 [L344] SORT_3 var_28 = var_28_arg_0 | var_28_arg_1; [L345] SORT_21 var_30_arg_0 = state_23; [L346] SORT_21 var_30_arg_1 = var_29; [L347] SORT_3 var_30 = var_30_arg_0 == var_30_arg_1; [L348] SORT_21 var_34_arg_0 = state_31; [L349] SORT_21 var_34_arg_1 = var_33; [L350] SORT_3 var_34 = var_34_arg_0 == var_34_arg_1; [L351] SORT_21 var_35_arg_0 = state_31; [L352] SORT_21 var_35_arg_1 = var_22; [L353] SORT_3 var_35 = var_35_arg_0 == var_35_arg_1; [L354] SORT_3 var_36_arg_0 = var_34; [L355] SORT_3 var_36_arg_1 = var_35; [L356] EXPR var_36_arg_0 | var_36_arg_1 [L356] SORT_3 var_36 = var_36_arg_0 | var_36_arg_1; [L357] SORT_21 var_38_arg_0 = state_31; [L358] SORT_21 var_38_arg_1 = var_37; [L359] SORT_3 var_38 = var_38_arg_0 == var_38_arg_1; [L360] SORT_3 var_39_arg_0 = var_36; [L361] SORT_3 var_39_arg_1 = var_38; [L362] EXPR var_39_arg_0 | var_39_arg_1 [L362] SORT_3 var_39 = var_39_arg_0 | var_39_arg_1; [L363] SORT_21 var_40_arg_0 = state_31; [L364] SORT_21 var_40_arg_1 = var_29; [L365] SORT_3 var_40 = var_40_arg_0 == var_40_arg_1; [L366] SORT_3 var_41_arg_0 = var_39; [L367] SORT_3 var_41_arg_1 = var_40; [L368] EXPR var_41_arg_0 | var_41_arg_1 [L368] SORT_3 var_41 = var_41_arg_0 | var_41_arg_1; [L369] SORT_3 var_42_arg_0 = var_30; [L370] SORT_3 var_42_arg_1 = var_41; [L371] EXPR var_42_arg_0 & var_42_arg_1 [L371] SORT_3 var_42 = var_42_arg_0 & var_42_arg_1; [L372] SORT_3 var_43_arg_0 = var_28; [L373] SORT_3 var_43_arg_1 = var_42; [L374] EXPR var_43_arg_0 | var_43_arg_1 [L374] SORT_3 var_43 = var_43_arg_0 | var_43_arg_1; [L375] SORT_21 var_44_arg_0 = state_23; [L376] SORT_21 var_44_arg_1 = var_33; [L377] SORT_3 var_44 = var_44_arg_0 == var_44_arg_1; [L378] SORT_3 var_45_arg_0 = var_43; [L379] SORT_3 var_45_arg_1 = var_44; [L380] EXPR var_45_arg_0 | var_45_arg_1 [L380] SORT_3 var_45 = var_45_arg_0 | var_45_arg_1; [L381] SORT_21 var_47_arg_0 = state_23; [L382] SORT_21 var_47_arg_1 = var_46; [L383] SORT_3 var_47 = var_47_arg_0 == var_47_arg_1; [L384] SORT_3 var_48_arg_0 = var_45; [L385] SORT_3 var_48_arg_1 = var_47; [L386] EXPR var_48_arg_0 | var_48_arg_1 [L386] SORT_3 var_48 = var_48_arg_0 | var_48_arg_1; [L387] SORT_21 var_50_arg_0 = state_23; [L388] SORT_21 var_50_arg_1 = var_49; [L389] SORT_3 var_50 = var_50_arg_0 == var_50_arg_1; [L390] SORT_3 var_51_arg_0 = var_48; [L391] SORT_3 var_51_arg_1 = var_50; [L392] EXPR var_51_arg_0 | var_51_arg_1 [L392] SORT_3 var_51 = var_51_arg_0 | var_51_arg_1; [L393] SORT_21 var_53_arg_0 = state_23; [L394] SORT_21 var_53_arg_1 = var_52; [L395] SORT_3 var_53 = var_53_arg_0 == var_53_arg_1; [L396] SORT_3 var_54_arg_0 = var_51; [L397] SORT_3 var_54_arg_1 = var_53; [L398] EXPR var_54_arg_0 | var_54_arg_1 [L398] SORT_3 var_54 = var_54_arg_0 | var_54_arg_1; [L399] SORT_21 var_55_arg_0 = state_23; [L400] SORT_21 var_55_arg_1 = var_37; [L401] SORT_3 var_55 = var_55_arg_0 == var_55_arg_1; [L402] SORT_3 var_56_arg_0 = var_54; [L403] SORT_3 var_56_arg_1 = var_55; [L404] EXPR var_56_arg_0 | var_56_arg_1 [L404] SORT_3 var_56 = var_56_arg_0 | var_56_arg_1; [L405] SORT_3 var_58_arg_0 = var_56; [L406] SORT_3 var_58 = ~var_58_arg_0; [L407] SORT_3 var_59_arg_0 = var_57; [L408] SORT_3 var_59_arg_1 = var_58; [L409] EXPR var_59_arg_0 & var_59_arg_1 [L409] SORT_3 var_59 = var_59_arg_0 & var_59_arg_1; [L410] EXPR var_59 & mask_SORT_3 [L410] var_59 = var_59 & mask_SORT_3 [L411] SORT_3 bad_60_arg_0 = var_59; [L412] CALL __VERIFIER_assert(!(bad_60_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, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2023-11-21 22:07:51,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx --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 7eccc5bbdbaf49f286af1eaa6e037aac70bd43bbdd029365a1ddd6424cc3712f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:07:54,012 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:07:54,155 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-21 22:07:54,164 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:07:54,165 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:07:54,209 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:07:54,210 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:07:54,210 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:07:54,211 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:07:54,217 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:07:54,218 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:07:54,218 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:07:54,219 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:07:54,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:07:54,221 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:07:54,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:07:54,222 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:07:54,223 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:07:54,223 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:07:54,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:07:54,225 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:07:54,226 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:07:54,226 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:07:54,227 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:07:54,227 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:07:54,228 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:07:54,229 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:07:54,229 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:07:54,230 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:07:54,230 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:07:54,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:07:54,232 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:07:54,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:07:54,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:07:54,233 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:07:54,233 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:07:54,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:07:54,235 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:07:54,235 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:07:54,235 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:07:54,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:07:54,236 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:07:54,236 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_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7eccc5bbdbaf49f286af1eaa6e037aac70bd43bbdd029365a1ddd6424cc3712f [2023-11-21 22:07:54,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:07:54,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:07:54,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:07:54,717 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:07:54,717 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:07:54,719 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c [2023-11-21 22:07:57,887 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:07:58,329 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:07:58,330 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c [2023-11-21 22:07:58,354 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/data/c9a8310c7/e102301230cf42a484b69450f4275c14/FLAGafb270993 [2023-11-21 22:07:58,370 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/data/c9a8310c7/e102301230cf42a484b69450f4275c14 [2023-11-21 22:07:58,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:07:58,375 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:07:58,376 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:58,380 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:07:58,385 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:07:58,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:58" (1/1) ... [2023-11-21 22:07:58,387 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c2d4b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:58, skipping insertion in model container [2023-11-21 22:07:58,388 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:58" (1/1) ... [2023-11-21 22:07:58,511 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:07:58,733 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_5a7532f9-b157-4fbf-b48e-fe9cbac93044/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c[1268,1281] [2023-11-21 22:07:59,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:59,256 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:07:59,269 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_5a7532f9-b157-4fbf-b48e-fe9cbac93044/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c[1268,1281] [2023-11-21 22:07:59,515 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:59,533 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:07:59,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:59 WrapperNode [2023-11-21 22:07:59,534 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:59,535 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:07:59,536 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:07:59,536 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:07:59,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:59" (1/1) ... [2023-11-21 22:07:59,624 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:59" (1/1) ... [2023-11-21 22:07:59,785 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2643 [2023-11-21 22:07:59,786 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:07:59,786 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:07:59,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:07:59,787 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:07:59,799 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:59" (1/1) ... [2023-11-21 22:07:59,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:59" (1/1) ... [2023-11-21 22:07:59,815 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:59" (1/1) ... [2023-11-21 22:07:59,857 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:07:59,858 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:59" (1/1) ... [2023-11-21 22:07:59,858 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:59" (1/1) ... [2023-11-21 22:07:59,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:59" (1/1) ... [2023-11-21 22:07:59,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:59" (1/1) ... [2023-11-21 22:07:59,961 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:59" (1/1) ... [2023-11-21 22:07:59,978 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:59" (1/1) ... [2023-11-21 22:08:00,017 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:08:00,018 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:08:00,019 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:08:00,020 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:08:00,021 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:59" (1/1) ... [2023-11-21 22:08:00,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:08:00,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:00,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:08:00,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:08:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:08:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:08:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:08:00,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:08:00,635 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:08:00,637 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:08:04,790 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:08:04,991 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:08:04,993 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:08:04,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:04 BoogieIcfgContainer [2023-11-21 22:08:04,995 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:08:04,997 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:08:04,998 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:08:05,001 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:08:05,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:07:58" (1/3) ... [2023-11-21 22:08:05,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1010ee0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:05, skipping insertion in model container [2023-11-21 22:08:05,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:59" (2/3) ... [2023-11-21 22:08:05,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1010ee0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:05, skipping insertion in model container [2023-11-21 22:08:05,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:04" (3/3) ... [2023-11-21 22:08:05,007 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p2.c [2023-11-21 22:08:05,027 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:08:05,028 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:08:05,092 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:08:05,099 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;@2e7d864d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:08:05,100 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:08:05,105 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:05,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 22:08:05,112 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:05,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 22:08:05,113 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:08:05,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:05,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-21 22:08:05,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:08:05,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296365039] [2023-11-21 22:08:05,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:05,139 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 [2023-11-21 22:08:05,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:08:05,140 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:08:05,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:08:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:05,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-21 22:08:05,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:06,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:06,119 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:06,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:08:06,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296365039] [2023-11-21 22:08:06,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296365039] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:06,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:06,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:08:06,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029369808] [2023-11-21 22:08:06,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:06,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:08:06,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:08:06,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:08:06,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:06,182 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2023-11-21 22:08:06,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:06,495 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2023-11-21 22:08:06,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:08:06,497 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 [2023-11-21 22:08:06,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:06,505 INFO L225 Difference]: With dead ends: 15 [2023-11-21 22:08:06,505 INFO L226 Difference]: Without dead ends: 9 [2023-11-21 22:08:06,508 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 [2023-11-21 22:08:06,514 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:06,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:08:06,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-21 22:08:06,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-21 22:08:06,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:06,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-21 22:08:06,547 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-21 22:08:06,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:06,547 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-21 22:08:06,547 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) [2023-11-21 22:08:06,548 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-21 22:08:06,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 22:08:06,548 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:06,548 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-21 22:08:06,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:08:06,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:08:06,752 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:08:06,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:06,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-21 22:08:06,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:08:06,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093327603] [2023-11-21 22:08:06,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:06,765 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 [2023-11-21 22:08:06,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:08:06,767 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:08:06,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a7532f9-b157-4fbf-b48e-fe9cbac93044/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-21 22:08:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:10,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 2207 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-21 22:08:10,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:10,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:10,427 INFO L327 TraceCheckSpWp]: Computing backward predicates...