./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.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_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/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_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/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_dfdb9d62-6793-4bef-9b40-81ae24beca04/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 1ef8d174762b17df623a48d7afe94f1e8bc5e2233dcaad9b42847f8ac912d010 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:16:12,603 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:16:12,706 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:16:12,713 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:16:12,714 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:16:12,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:16:12,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:16:12,751 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:16:12,752 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:16:12,753 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:16:12,754 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:16:12,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:16:12,755 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:16:12,756 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:16:12,757 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:16:12,757 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:16:12,758 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:16:12,759 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:16:12,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:16:12,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:16:12,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:16:12,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:16:12,765 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:16:12,766 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:16:12,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:16:12,767 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:16:12,768 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:16:12,768 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:16:12,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:16:12,769 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:16:12,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:16:12,771 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:16:12,772 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:16:12,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:16:12,772 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:16:12,772 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:16:12,773 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:16:12,773 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:16:12,773 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:16:12,773 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_dfdb9d62-6793-4bef-9b40-81ae24beca04/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ef8d174762b17df623a48d7afe94f1e8bc5e2233dcaad9b42847f8ac912d010 [2023-11-21 22:16:13,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:16:13,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:16:13,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:16:13,180 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:16:13,181 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:16:13,183 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2023-11-21 22:16:16,458 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:16:16,837 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:16:16,837 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2023-11-21 22:16:16,866 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/data/2fb2bb0cc/6eaf05a5a4ba4cf08d6ec0fee4281a09/FLAGaff040c23 [2023-11-21 22:16:16,888 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/data/2fb2bb0cc/6eaf05a5a4ba4cf08d6ec0fee4281a09 [2023-11-21 22:16:16,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:16:16,902 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:16:16,904 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:16:16,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:16:16,911 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:16:16,912 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:16:16" (1/1) ... [2023-11-21 22:16:16,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64a5aa4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:16, skipping insertion in model container [2023-11-21 22:16:16,914 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:16:16" (1/1) ... [2023-11-21 22:16:16,995 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:16:17,233 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_dfdb9d62-6793-4bef-9b40-81ae24beca04/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1258,1271] [2023-11-21 22:16:17,384 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:16:17,398 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:16:17,414 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_dfdb9d62-6793-4bef-9b40-81ae24beca04/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1258,1271] [2023-11-21 22:16:17,505 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:16:17,577 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:16:17,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:17 WrapperNode [2023-11-21 22:16:17,577 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:16:17,579 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:16:17,579 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:16:17,579 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:16:17,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:17" (1/1) ... [2023-11-21 22:16:17,666 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:17" (1/1) ... [2023-11-21 22:16:17,817 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 674 [2023-11-21 22:16:17,817 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:16:17,818 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:16:17,819 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:16:17,819 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:16:17,833 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:17" (1/1) ... [2023-11-21 22:16:17,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:17" (1/1) ... [2023-11-21 22:16:17,878 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:17" (1/1) ... [2023-11-21 22:16:17,930 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:16:17,930 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:17" (1/1) ... [2023-11-21 22:16:17,930 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:17" (1/1) ... [2023-11-21 22:16:17,967 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:17" (1/1) ... [2023-11-21 22:16:17,981 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:17" (1/1) ... [2023-11-21 22:16:17,999 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:17" (1/1) ... [2023-11-21 22:16:18,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:17" (1/1) ... [2023-11-21 22:16:18,029 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:16:18,031 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:16:18,032 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:16:18,032 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:16:18,033 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:17" (1/1) ... [2023-11-21 22:16:18,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:16:18,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:18,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:18,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:16:18,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:16:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:16:18,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:16:18,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:16:18,283 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:16:18,286 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:16:19,252 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:16:20,277 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:16:20,277 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:16:20,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:20 BoogieIcfgContainer [2023-11-21 22:16:20,280 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:16:20,285 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:16:20,287 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:16:20,291 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:16:20,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:16:16" (1/3) ... [2023-11-21 22:16:20,293 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d88186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:16:20, skipping insertion in model container [2023-11-21 22:16:20,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:17" (2/3) ... [2023-11-21 22:16:20,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d88186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:16:20, skipping insertion in model container [2023-11-21 22:16:20,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:20" (3/3) ... [2023-11-21 22:16:20,297 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2023-11-21 22:16:20,323 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:16:20,323 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:16:20,399 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:16:20,409 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;@75278c9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:16:20,410 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:16:20,415 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 22:16:20,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 22:16:20,423 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:16:20,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 22:16:20,426 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:16:20,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:20,437 INFO L85 PathProgramCache]: Analyzing trace with hash 16036426, now seen corresponding path program 1 times [2023-11-21 22:16:20,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:20,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562702332] [2023-11-21 22:16:20,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:20,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:20,910 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:16:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:21,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:16:21,160 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:16:21,161 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:16:21,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:16:21,170 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:16:21,175 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:16:21,226 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-21 22:16:21,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:16:21 BoogieIcfgContainer [2023-11-21 22:16:21,240 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:16:21,241 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:16:21,241 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:16:21,241 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:16:21,242 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:20" (3/4) ... [2023-11-21 22:16:21,245 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:16:21,246 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:16:21,248 INFO L158 Benchmark]: Toolchain (without parser) took 4345.77ms. Allocated memory was 146.8MB in the beginning and 197.1MB in the end (delta: 50.3MB). Free memory was 111.8MB in the beginning and 108.7MB in the end (delta: 3.1MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2023-11-21 22:16:21,249 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:16:21,249 INFO L158 Benchmark]: CACSL2BoogieTranslator took 673.72ms. Allocated memory is still 146.8MB. Free memory was 111.8MB in the beginning and 116.5MB in the end (delta: -4.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-21 22:16:21,250 INFO L158 Benchmark]: Boogie Procedure Inliner took 238.87ms. Allocated memory is still 146.8MB. Free memory was 116.5MB in the beginning and 104.5MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:16:21,251 INFO L158 Benchmark]: Boogie Preprocessor took 211.20ms. Allocated memory is still 146.8MB. Free memory was 104.5MB in the beginning and 96.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 22:16:21,252 INFO L158 Benchmark]: RCFGBuilder took 2248.21ms. Allocated memory was 146.8MB in the beginning and 197.1MB in the end (delta: 50.3MB). Free memory was 96.1MB in the beginning and 147.5MB in the end (delta: -51.4MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. [2023-11-21 22:16:21,253 INFO L158 Benchmark]: TraceAbstraction took 955.28ms. Allocated memory is still 197.1MB. Free memory was 146.5MB in the beginning and 108.7MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-21 22:16:21,254 INFO L158 Benchmark]: Witness Printer took 5.43ms. Allocated memory is still 197.1MB. Free memory is still 108.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:16:21,258 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 673.72ms. Allocated memory is still 146.8MB. Free memory was 111.8MB in the beginning and 116.5MB in the end (delta: -4.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 238.87ms. Allocated memory is still 146.8MB. Free memory was 116.5MB in the beginning and 104.5MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 211.20ms. Allocated memory is still 146.8MB. Free memory was 104.5MB in the beginning and 96.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2248.21ms. Allocated memory was 146.8MB in the beginning and 197.1MB in the end (delta: 50.3MB). Free memory was 96.1MB in the beginning and 147.5MB in the end (delta: -51.4MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. * TraceAbstraction took 955.28ms. Allocated memory is still 197.1MB. Free memory was 146.5MB in the beginning and 108.7MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 5.43ms. Allocated memory is still 197.1MB. Free memory is still 108.7MB. 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 144, overapproximation of bitwiseAnd at line 110. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 32); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (32 - 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_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 2); [L33] const SORT_16 msb_SORT_16 = (SORT_16)1 << (2 - 1); [L35] const SORT_59 mask_SORT_59 = (SORT_59)-1 >> (sizeof(SORT_59) * 8 - 3); [L36] const SORT_59 msb_SORT_59 = (SORT_59)1 << (3 - 1); [L38] const SORT_16 var_17 = 0; [L39] const SORT_16 var_20 = 3; [L40] const SORT_3 var_22 = 1; [L41] const SORT_3 var_36 = 0; [L42] const SORT_16 var_77 = 2; [L43] const SORT_16 var_80 = 1; [L44] const SORT_59 var_92 = 0; [L46] SORT_1 input_2; [L47] SORT_3 input_4; [L48] SORT_1 input_5; [L49] SORT_3 input_6; [L50] SORT_3 input_7; [L51] SORT_3 input_8; [L52] SORT_1 input_9; [L53] SORT_3 input_10; [L54] SORT_3 input_11; [L55] SORT_1 input_12; [L56] SORT_3 input_13; [L57] SORT_3 input_14; [L58] SORT_3 input_15; [L59] SORT_1 input_32; [L60] SORT_3 input_34; [L61] SORT_1 input_39; [L62] SORT_3 input_41; [L63] SORT_1 input_47; [L64] SORT_1 input_53; [L65] SORT_1 input_55; [L66] SORT_1 input_57; [L67] SORT_59 input_60; [L68] SORT_59 input_66; [L69] SORT_1 input_69; [L70] SORT_3 input_73; [L72] EXPR __VERIFIER_nondet_uchar() & mask_SORT_16 [L72] SORT_16 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_16; [L73] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L73] SORT_3 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L74] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L74] SORT_3 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L75] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L75] SORT_3 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L76] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L76] SORT_3 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L77] SORT_3 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L78] SORT_3 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L79] SORT_3 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L80] SORT_3 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L81] SORT_3 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L83] SORT_16 init_19_arg_1 = var_17; [L84] state_18 = init_19_arg_1 [L85] SORT_3 init_24_arg_1 = var_22; [L86] state_23 = init_24_arg_1 [L87] SORT_3 init_38_arg_1 = var_36; [L88] state_37 = init_38_arg_1 [L89] SORT_3 init_44_arg_1 = var_36; [L90] state_43 = init_44_arg_1 [L91] SORT_3 init_46_arg_1 = var_36; [L92] state_45 = init_46_arg_1 [L93] SORT_3 init_50_arg_1 = var_36; [L94] state_49 = init_50_arg_1 [L95] SORT_3 init_52_arg_1 = var_36; [L96] state_51 = init_52_arg_1 [L97] SORT_3 init_63_arg_1 = var_36; [L98] state_62 = init_63_arg_1 [L99] SORT_3 init_65_arg_1 = var_36; [L100] state_64 = init_65_arg_1 [L101] SORT_3 init_72_arg_1 = var_36; [L102] state_71 = init_72_arg_1 VAL [init_19_arg_1=0, init_24_arg_1=1, init_38_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_72_arg_1=0, mask_SORT_16=3, mask_SORT_1=4294967295, mask_SORT_3=1, mask_SORT_59=7, msb_SORT_16=2, msb_SORT_1=2147483648, msb_SORT_3=1, msb_SORT_59=4, state_18=0, state_23=1, state_37=0, state_43=0, state_45=0, state_49=0, state_51=0, state_62=0, state_64=0, state_71=0, var_17=0, var_20=3, var_22=1, var_36=0, var_77=2, var_80=1, var_92=0] [L105] input_2 = __VERIFIER_nondet_uint() [L106] input_4 = __VERIFIER_nondet_uchar() [L107] input_5 = __VERIFIER_nondet_uint() [L108] input_6 = __VERIFIER_nondet_uchar() [L109] input_7 = __VERIFIER_nondet_uchar() [L110] EXPR input_7 & mask_SORT_3 [L110] input_7 = input_7 & mask_SORT_3 [L111] input_8 = __VERIFIER_nondet_uchar() [L112] EXPR input_8 & mask_SORT_3 [L112] input_8 = input_8 & mask_SORT_3 [L113] input_9 = __VERIFIER_nondet_uint() [L114] input_10 = __VERIFIER_nondet_uchar() [L115] EXPR input_10 & mask_SORT_3 [L115] input_10 = input_10 & mask_SORT_3 [L116] input_11 = __VERIFIER_nondet_uchar() [L117] EXPR input_11 & mask_SORT_3 [L117] input_11 = input_11 & mask_SORT_3 [L118] input_12 = __VERIFIER_nondet_uint() [L119] input_13 = __VERIFIER_nondet_uchar() [L120] input_14 = __VERIFIER_nondet_uchar() [L121] input_15 = __VERIFIER_nondet_uchar() [L122] input_32 = __VERIFIER_nondet_uint() [L123] input_34 = __VERIFIER_nondet_uchar() [L124] input_39 = __VERIFIER_nondet_uint() [L125] input_41 = __VERIFIER_nondet_uchar() [L126] input_47 = __VERIFIER_nondet_uint() [L127] input_53 = __VERIFIER_nondet_uint() [L128] input_55 = __VERIFIER_nondet_uint() [L129] input_57 = __VERIFIER_nondet_uint() [L130] input_60 = __VERIFIER_nondet_uchar() [L131] input_66 = __VERIFIER_nondet_uchar() [L132] input_69 = __VERIFIER_nondet_uint() [L133] input_73 = __VERIFIER_nondet_uchar() [L136] SORT_16 var_21_arg_0 = state_18; [L137] SORT_16 var_21_arg_1 = var_20; [L138] SORT_3 var_21 = var_21_arg_0 != var_21_arg_1; [L139] SORT_3 var_25_arg_0 = state_23; [L140] SORT_3 var_25_arg_1 = var_22; [L141] SORT_3 var_25 = var_25_arg_0 == var_25_arg_1; [L142] SORT_3 var_26_arg_0 = var_21; [L143] SORT_3 var_26_arg_1 = var_25; [L144] EXPR var_26_arg_0 | var_26_arg_1 [L144] SORT_3 var_26 = var_26_arg_0 | var_26_arg_1; [L145] SORT_3 var_29_arg_0 = var_26; [L146] SORT_3 var_29 = ~var_29_arg_0; [L147] SORT_3 var_30_arg_0 = var_22; [L148] SORT_3 var_30_arg_1 = var_29; [L149] EXPR var_30_arg_0 & var_30_arg_1 [L149] SORT_3 var_30 = var_30_arg_0 & var_30_arg_1; [L150] EXPR var_30 & mask_SORT_3 [L150] var_30 = var_30 & mask_SORT_3 [L151] SORT_3 bad_31_arg_0 = var_30; [L152] CALL __VERIFIER_assert(!(bad_31_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: 0.8s, 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: 0.0s SsaConstructionTime, 0.3s 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 22:16:21,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/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_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/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_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/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_dfdb9d62-6793-4bef-9b40-81ae24beca04/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 1ef8d174762b17df623a48d7afe94f1e8bc5e2233dcaad9b42847f8ac912d010 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:16:24,403 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:16:24,548 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-21 22:16:24,558 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:16:24,559 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:16:24,612 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:16:24,613 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:16:24,614 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:16:24,615 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:16:24,620 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:16:24,621 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:16:24,622 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:16:24,622 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:16:24,624 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:16:24,625 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:16:24,625 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:16:24,626 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:16:24,626 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:16:24,627 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:16:24,628 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:16:24,628 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:16:24,629 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:16:24,630 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:16:24,630 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:16:24,631 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:16:24,631 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:16:24,632 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:16:24,633 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:16:24,633 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:16:24,634 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:16:24,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:16:24,636 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:16:24,636 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:16:24,637 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:16:24,637 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:16:24,637 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:16:24,638 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:16:24,639 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:16:24,639 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:16:24,639 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:16:24,639 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:16:24,640 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:16:24,640 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_dfdb9d62-6793-4bef-9b40-81ae24beca04/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ef8d174762b17df623a48d7afe94f1e8bc5e2233dcaad9b42847f8ac912d010 [2023-11-21 22:16:25,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:16:25,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:16:25,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:16:25,131 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:16:25,132 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:16:25,134 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2023-11-21 22:16:29,014 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:16:29,430 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:16:29,431 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2023-11-21 22:16:29,447 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/data/312d0554d/90360728013642898e80558ae644b8e0/FLAG1f52c870f [2023-11-21 22:16:29,464 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/data/312d0554d/90360728013642898e80558ae644b8e0 [2023-11-21 22:16:29,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:16:29,470 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:16:29,472 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:16:29,472 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:16:29,479 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:16:29,480 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:16:29" (1/1) ... [2023-11-21 22:16:29,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19f7a29f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:29, skipping insertion in model container [2023-11-21 22:16:29,482 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:16:29" (1/1) ... [2023-11-21 22:16:29,531 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:16:29,722 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_dfdb9d62-6793-4bef-9b40-81ae24beca04/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1258,1271] [2023-11-21 22:16:29,844 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:16:29,858 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:16:29,872 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_dfdb9d62-6793-4bef-9b40-81ae24beca04/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1258,1271] [2023-11-21 22:16:29,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:16:29,966 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:16:29,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:29 WrapperNode [2023-11-21 22:16:29,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:16:29,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:16:29,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:16:29,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:16:29,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:29" (1/1) ... [2023-11-21 22:16:29,999 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:29" (1/1) ... [2023-11-21 22:16:30,058 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 404 [2023-11-21 22:16:30,097 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:16:30,098 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:16:30,098 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:16:30,098 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:16:30,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:29" (1/1) ... [2023-11-21 22:16:30,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:29" (1/1) ... [2023-11-21 22:16:30,146 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:29" (1/1) ... [2023-11-21 22:16:30,203 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:16:30,203 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:29" (1/1) ... [2023-11-21 22:16:30,209 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:29" (1/1) ... [2023-11-21 22:16:30,245 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:29" (1/1) ... [2023-11-21 22:16:30,249 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:29" (1/1) ... [2023-11-21 22:16:30,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:29" (1/1) ... [2023-11-21 22:16:30,276 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:29" (1/1) ... [2023-11-21 22:16:30,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:16:30,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:16:30,285 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:16:30,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:16:30,286 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:29" (1/1) ... [2023-11-21 22:16:30,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:16:30,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:30,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:30,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:16:30,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:16:30,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:16:30,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:16:30,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:16:30,551 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:16:30,554 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:16:31,159 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:16:31,226 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:16:31,226 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:16:31,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:31 BoogieIcfgContainer [2023-11-21 22:16:31,228 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:16:31,232 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:16:31,232 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:16:31,236 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:16:31,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:16:29" (1/3) ... [2023-11-21 22:16:31,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71b97d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:16:31, skipping insertion in model container [2023-11-21 22:16:31,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:29" (2/3) ... [2023-11-21 22:16:31,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71b97d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:16:31, skipping insertion in model container [2023-11-21 22:16:31,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:31" (3/3) ... [2023-11-21 22:16:31,246 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2023-11-21 22:16:31,275 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:16:31,280 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:16:31,343 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:16:31,352 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;@6448ea33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:16:31,353 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:16:31,360 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 22:16:31,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 22:16:31,369 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:16:31,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 22:16:31,371 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:16:31,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:31,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-21 22:16:31,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:16:31,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1345352654] [2023-11-21 22:16:31,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:31,393 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 22:16:31,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:16:31,395 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/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 22:16:31,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/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 22:16:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:31,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-21 22:16:31,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:16:31,928 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 22:16:31,928 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:16:31,929 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:16:31,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1345352654] [2023-11-21 22:16:31,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1345352654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:16:31,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:16:31,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:16:31,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266389174] [2023-11-21 22:16:31,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:16:31,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:16:31,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:16:31,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:16:31,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:16:31,979 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 22:16:32,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:16:32,085 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2023-11-21 22:16:32,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:16:32,089 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 22:16:32,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:16:32,098 INFO L225 Difference]: With dead ends: 15 [2023-11-21 22:16:32,099 INFO L226 Difference]: Without dead ends: 9 [2023-11-21 22:16:32,102 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 22:16:32,109 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:16:32,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:16:32,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-21 22:16:32,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-21 22:16:32,145 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 22:16:32,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-21 22:16:32,147 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-21 22:16:32,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:16:32,148 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-21 22:16:32,148 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 22:16:32,149 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-21 22:16:32,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 22:16:32,149 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:16:32,150 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-21 22:16:32,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/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)] Ended with exit code 0 [2023-11-21 22:16:32,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/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 22:16:32,354 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:16:32,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:32,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-21 22:16:32,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:16:32,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583718647] [2023-11-21 22:16:32,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:32,357 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 22:16:32,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:16:32,359 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/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 22:16:32,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/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 22:16:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:32,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-21 22:16:32,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:16:32,937 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 22:16:32,938 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:16:33,541 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 22:16:33,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:16:33,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583718647] [2023-11-21 22:16:33,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583718647] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:16:33,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:16:33,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-21 22:16:33,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611633438] [2023-11-21 22:16:33,543 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:16:33,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:16:33,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:16:33,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:16:33,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:16:33,547 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:16:33,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:16:33,690 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-21 22:16:33,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:16:33,691 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-21 22:16:33,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:16:33,692 INFO L225 Difference]: With dead ends: 14 [2023-11-21 22:16:33,692 INFO L226 Difference]: Without dead ends: 12 [2023-11-21 22:16:33,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:16:33,694 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:16:33,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:16:33,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-21 22:16:33,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-11-21 22:16:33,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:16:33,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-21 22:16:33,710 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-11-21 22:16:33,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:16:33,711 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-21 22:16:33,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:16:33,711 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-21 22:16:33,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 22:16:33,712 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:16:33,713 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-11-21 22:16:33,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/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)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:33,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/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 22:16:33,917 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:16:33,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:33,918 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-11-21 22:16:33,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:16:33,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970934804] [2023-11-21 22:16:33,920 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:16:33,921 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 22:16:33,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:16:33,922 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/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 22:16:33,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/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 (4)] Waiting until timeout for monitored process [2023-11-21 22:16:34,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 22:16:34,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:16:34,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 56 conjunts are in the unsatisfiable core [2023-11-21 22:16:34,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:16:35,324 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:16:35,325 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:16:41,381 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse29 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_3~0#1|)) (.cse28 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_22~0#1|))) (let ((.cse25 (= .cse28 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse29 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse28))))))))))) (.cse20 (forall ((|v_ULTIMATE.start_main_~var_30_arg_0~0#1_17| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse29 ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv254 32) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_30_arg_0~0#1_17|)))))) (_ bv0 8))))) (let ((.cse4 (= |c_ULTIMATE.start_main_~input_7~0#1| (_ bv0 8))) (.cse21 (forall ((|v_ULTIMATE.start_main_~var_116_arg_2~0#1_16| (_ BitVec 8))) (= .cse28 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse29 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_116_arg_2~0#1_16|))))))))) (.cse22 (or .cse20 (forall ((|v_ULTIMATE.start_main_~var_116_arg_2~0#1_16| (_ BitVec 8))) (not (= .cse28 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse29 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_116_arg_2~0#1_16|))))))))))) (.cse24 (or .cse20 (not .cse25))) (.cse23 (forall ((|v_ULTIMATE.start_main_~var_30_arg_0~0#1_17| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse29 ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv255 32) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_30_arg_0~0#1_17|)))))) (_ bv0 8)))) (.cse27 (or .cse20 (forall ((|v_ULTIMATE.start_main_~var_115_arg_1~0#1_16| (_ BitVec 8))) (not (= .cse28 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse29 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_115_arg_1~0#1_16|))))))))))))) (.cse26 (forall ((|v_ULTIMATE.start_main_~var_115_arg_1~0#1_16| (_ BitVec 8))) (= .cse28 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse29 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_115_arg_1~0#1_16|)))))))))))) (let ((.cse6 (and .cse27 (or .cse20 .cse26))) (.cse7 (and (or .cse23 .cse26) .cse27)) (.cse12 (and .cse24 (or .cse23 .cse25))) (.cse10 (and .cse24 (or .cse20 .cse25))) (.cse3 (and (or .cse23 .cse21) .cse22)) (.cse2 (not .cse4)) (.cse1 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_20~0#1|)) (.cse13 (and (or .cse20 .cse21) .cse22)) (.cse0 (= |c_ULTIMATE.start_main_~state_45~0#1| (_ bv0 8)))) (and (or .cse0 (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_17| (_ BitVec 8))) (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_17|))))))))) .cse2 .cse3) (or .cse4 (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_16| (_ BitVec 8))) (let ((.cse5 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|))) (or (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_17|)))))))) (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_16|)))))))))) .cse6) (or .cse7 (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_16| (_ BitVec 8))) (let ((.cse8 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|))) (or (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_16|)))))))) (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_17|)))))))))))))) (or .cse4 (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_16| (_ BitVec 8))) (let ((.cse9 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|))) (or (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse9 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_17|))))))) (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse9 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_16|)))))))))) .cse10) (or (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_16| (_ BitVec 8))) (let ((.cse11 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|))) (or (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse11 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_17|))))))) (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse11 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_16|))))))))))) .cse12))) (or .cse2 .cse13 (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_17| (_ BitVec 8))) (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_17|))))))))))) (or (let ((.cse14 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_18~0#1|))))) (and (or .cse4 (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_16| (_ BitVec 8))) (let ((.cse15 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|))) (or (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse14 .cse15))))) (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse15 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_16|)))))))))) .cse6) (or .cse7 (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_16| (_ BitVec 8))) (let ((.cse16 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|))) (or (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse14 .cse16))))) (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse16 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_16|)))))))))))))) (or .cse4 (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_16| (_ BitVec 8))) (let ((.cse17 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|))) (or (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse17 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_16|)))))))) (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse14 .cse17))))))) .cse12) (or (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_16| (_ BitVec 8))) (let ((.cse18 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|))) (or (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse14 .cse18)))) (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse18 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_16|)))))))))) .cse10))) (or .cse2 .cse3 (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8))) (not (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse19 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|))) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse14 .cse19))))) .cse19)))))))) (or .cse2 (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8))) (= .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse14 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|)))))) .cse13))) (not .cse0))))))) is different from false [2023-11-21 22:16:47,587 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse20 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_3~0#1|)) (.cse29 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_22~0#1|))) (let ((.cse26 (= .cse29 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse20 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse29))))))))))) (.cse21 (forall ((|v_ULTIMATE.start_main_~var_30_arg_0~0#1_17| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse20 ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv254 32) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_30_arg_0~0#1_17|)))))) (_ bv0 8))))) (let ((.cse22 (forall ((|v_ULTIMATE.start_main_~var_116_arg_2~0#1_16| (_ BitVec 8))) (= .cse29 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse20 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_116_arg_2~0#1_16|))))))))) (.cse23 (or .cse21 (forall ((|v_ULTIMATE.start_main_~var_116_arg_2~0#1_16| (_ BitVec 8))) (not (= .cse29 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse20 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_116_arg_2~0#1_16|))))))))))) (.cse25 (or .cse21 (not .cse26))) (.cse24 (forall ((|v_ULTIMATE.start_main_~var_30_arg_0~0#1_17| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse20 ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv255 32) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_30_arg_0~0#1_17|)))))) (_ bv0 8)))) (.cse28 (or .cse21 (forall ((|v_ULTIMATE.start_main_~var_115_arg_1~0#1_16| (_ BitVec 8))) (not (= .cse29 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse20 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_115_arg_1~0#1_16|))))))))))))) (.cse27 (forall ((|v_ULTIMATE.start_main_~var_115_arg_1~0#1_16| (_ BitVec 8))) (= .cse29 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse20 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_115_arg_1~0#1_16|)))))))))))) (let ((.cse15 (= |c_ULTIMATE.start_main_~state_45~0#1| (_ bv0 8))) (.cse12 (and .cse28 (or .cse21 .cse27))) (.cse13 (and (or .cse24 .cse27) .cse28)) (.cse5 (and .cse25 (or .cse21 .cse26))) (.cse3 (and .cse25 (or .cse24 .cse26))) (.cse6 (forall ((|v_ULTIMATE.start_main_#t~nondet18#1_22| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse20 ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet18#1_22|)))))) (.cse7 (and (or .cse24 .cse22) .cse23)) (.cse10 (and (or .cse21 .cse22) .cse23)) (.cse0 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_20~0#1|)) (.cse9 (forall ((|v_ULTIMATE.start_main_#t~nondet18#1_22| (_ BitVec 8))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse20 ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet18#1_22|)))))))) (and (or (let ((.cse2 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_18~0#1|))))) (and (or (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_16| (_ BitVec 8))) (let ((.cse1 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|))) (or (not (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_16|)))))))) (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 .cse1))))))) .cse3) (or (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_16| (_ BitVec 8))) (let ((.cse4 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|))) (or (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 .cse4)))) (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_16|)))))))))) .cse5)) .cse6) (or .cse7 (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8))) (not (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (let ((.cse8 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|))) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 .cse8))))) .cse8))))))) .cse9) (or (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8))) (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|)))))) .cse10 .cse9) (or .cse6 (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_16| (_ BitVec 8))) (let ((.cse11 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|))) (or (not (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 .cse11))))) (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse11 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_16|)))))))))) .cse12) (or .cse13 (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_16| (_ BitVec 8))) (let ((.cse14 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|))) (or (not (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 .cse14))))) (not (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse14 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_16|)))))))))))))))) (not .cse15)) (or .cse15 (and (or (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_16| (_ BitVec 8))) (let ((.cse16 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|))) (or (not (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse16 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_17|)))))))) (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse16 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_16|)))))))))) .cse12) (or .cse13 (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_16| (_ BitVec 8))) (let ((.cse17 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|))) (or (not (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse17 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_16|)))))))) (not (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse17 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_17|))))))))))))) .cse6) (or (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_16| (_ BitVec 8))) (let ((.cse18 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|))) (or (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse18 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_17|))))))) (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse18 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_16|)))))))))) .cse5) (or (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_16| (_ BitVec 8))) (let ((.cse19 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|))) (or (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_17|))))))) (not (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse19 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_16|))))))))))) .cse3)) .cse6) (or (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_17| (_ BitVec 8))) (not (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_17|))))))))) .cse7 .cse9) (or .cse10 (forall ((|ULTIMATE.start_main_~mask_SORT_16~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_107_arg_1~0#1_17| (_ BitVec 8))) (= .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_107_arg_1~0#1_17|)))))))) .cse9)))))))) is different from false [2023-11-21 22:16:47,669 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2023-11-21 22:16:47,669 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:16:47,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970934804] [2023-11-21 22:16:47,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970934804] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:16:47,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:16:47,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-21 22:16:47,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882131338] [2023-11-21 22:16:47,671 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:16:47,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-21 22:16:47,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:16:47,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-21 22:16:47,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=64, Unknown=2, NotChecked=34, Total=132 [2023-11-21 22:16:47,674 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:16:49,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:16:49,304 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-11-21 22:16:49,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:16:49,305 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-21 22:16:49,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:16:49,306 INFO L225 Difference]: With dead ends: 17 [2023-11-21 22:16:49,306 INFO L226 Difference]: Without dead ends: 15 [2023-11-21 22:16:49,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=76, Invalid=140, Unknown=2, NotChecked=54, Total=272 [2023-11-21 22:16:49,308 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 14 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:16:49,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 18 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 21 Unchecked, 0.3s Time] [2023-11-21 22:16:49,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-21 22:16:49,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-11-21 22:16:49,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 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 22:16:49,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-21 22:16:49,316 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 10 [2023-11-21 22:16:49,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:16:49,317 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-11-21 22:16:49,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:16:49,317 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-11-21 22:16:49,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 22:16:49,318 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:16:49,318 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2023-11-21 22:16:49,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/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 (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:49,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/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 22:16:49,519 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:16:49,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:49,520 INFO L85 PathProgramCache]: Analyzing trace with hash -57678563, now seen corresponding path program 3 times [2023-11-21 22:16:49,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:16:49,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778769854] [2023-11-21 22:16:49,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 22:16:49,522 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 22:16:49,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:16:49,523 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/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 22:16:49,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfdb9d62-6793-4bef-9b40-81ae24beca04/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 (5)] Waiting until timeout for monitored process [2023-11-21 22:16:49,977 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-21 22:16:49,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:16:49,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 106 conjunts are in the unsatisfiable core [2023-11-21 22:16:50,001 INFO L285 TraceCheckSpWp]: Computing forward predicates...