./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 a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/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_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX --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 0.2.5-dev-a016563 [2024-11-08 17:13:47,557 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:13:47,677 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-08 17:13:47,688 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:13:47,688 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:13:47,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:13:47,723 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:13:47,723 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:13:47,724 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:13:47,725 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:13:47,725 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:13:47,726 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:13:47,727 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:13:47,727 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:13:47,728 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:13:47,728 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:13:47,729 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:13:47,729 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:13:47,730 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:13:47,730 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:13:47,731 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:13:47,732 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:13:47,732 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:13:47,733 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:13:47,733 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:13:47,734 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:13:47,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:13:47,735 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:13:47,735 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:13:47,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:13:47,736 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:13:47,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:13:47,737 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:13:47,738 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:13:47,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:13:47,739 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:13:47,739 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:13:47,740 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:13:47,740 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:13:47,741 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_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ef8d174762b17df623a48d7afe94f1e8bc5e2233dcaad9b42847f8ac912d010 [2024-11-08 17:13:48,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:13:48,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:13:48,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:13:48,078 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:13:48,079 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:13:48,080 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c Unable to find full path for "g++" [2024-11-08 17:13:50,163 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:13:50,477 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:13:50,478 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2024-11-08 17:13:50,491 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/data/adf96e116/bfa0f57482e14d7db8a24e35fe76b1ef/FLAG3c60fff19 [2024-11-08 17:13:50,521 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/data/adf96e116/bfa0f57482e14d7db8a24e35fe76b1ef [2024-11-08 17:13:50,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:13:50,527 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:13:50,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:13:50,531 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:13:50,537 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:13:50,538 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:13:50" (1/1) ... [2024-11-08 17:13:50,542 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6609ac67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:50, skipping insertion in model container [2024-11-08 17:13:50,542 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:13:50" (1/1) ... [2024-11-08 17:13:50,593 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:13:50,811 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1258,1271] [2024-11-08 17:13:50,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:13:50,989 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:13:51,002 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1258,1271] [2024-11-08 17:13:51,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:13:51,132 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:13:51,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:51 WrapperNode [2024-11-08 17:13:51,133 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:13:51,134 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:13:51,135 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:13:51,135 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:13:51,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:51" (1/1) ... [2024-11-08 17:13:51,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:51" (1/1) ... [2024-11-08 17:13:51,303 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 619 [2024-11-08 17:13:51,304 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:13:51,305 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:13:51,305 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:13:51,309 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:13:51,323 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:51" (1/1) ... [2024-11-08 17:13:51,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:51" (1/1) ... [2024-11-08 17:13:51,352 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:51" (1/1) ... [2024-11-08 17:13:51,399 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 17:13:51,399 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:51" (1/1) ... [2024-11-08 17:13:51,400 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:51" (1/1) ... [2024-11-08 17:13:51,431 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:51" (1/1) ... [2024-11-08 17:13:51,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:51" (1/1) ... [2024-11-08 17:13:51,457 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:51" (1/1) ... [2024-11-08 17:13:51,465 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:51" (1/1) ... [2024-11-08 17:13:51,478 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:13:51,479 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:13:51,480 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:13:51,480 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:13:51,481 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:51" (1/1) ... [2024-11-08 17:13:51,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:13:51,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:13:51,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:13:51,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:13:51,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:13:51,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:13:51,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:13:51,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:13:51,831 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:13:51,834 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:13:52,892 INFO L? ?]: Removed 316 outVars from TransFormulas that were not future-live. [2024-11-08 17:13:52,895 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:13:52,952 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:13:52,953 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 17:13:52,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:13:52 BoogieIcfgContainer [2024-11-08 17:13:52,959 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:13:52,963 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:13:52,963 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:13:52,978 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:13:52,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:13:50" (1/3) ... [2024-11-08 17:13:52,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b9ebcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:13:52, skipping insertion in model container [2024-11-08 17:13:52,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:51" (2/3) ... [2024-11-08 17:13:52,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b9ebcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:13:52, skipping insertion in model container [2024-11-08 17:13:52,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:13:52" (3/3) ... [2024-11-08 17:13:52,985 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2024-11-08 17:13:53,044 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:13:53,045 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:13:53,132 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:13:53,141 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34c449ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:13:53,142 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:13:53,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 117 states have (on average 1.4957264957264957) internal successors, (175), 118 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:53,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-08 17:13:53,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:53,161 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:53,162 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:53,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:53,170 INFO L85 PathProgramCache]: Analyzing trace with hash -388113747, now seen corresponding path program 1 times [2024-11-08 17:13:53,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:53,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093542742] [2024-11-08 17:13:53,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:53,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:54,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:54,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:54,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093542742] [2024-11-08 17:13:54,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093542742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:54,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:54,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:13:54,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545740441] [2024-11-08 17:13:54,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:54,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:13:54,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:54,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:13:54,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:13:54,112 INFO L87 Difference]: Start difference. First operand has 119 states, 117 states have (on average 1.4957264957264957) internal successors, (175), 118 states have internal predecessors, (175), 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 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:54,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:54,198 INFO L93 Difference]: Finished difference Result 194 states and 288 transitions. [2024-11-08 17:13:54,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:13:54,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2024-11-08 17:13:54,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:54,217 INFO L225 Difference]: With dead ends: 194 [2024-11-08 17:13:54,218 INFO L226 Difference]: Without dead ends: 117 [2024-11-08 17:13:54,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:13:54,228 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:13:54,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 495 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:13:54,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-08 17:13:54,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-11-08 17:13:54,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 116 states have (on average 1.4741379310344827) internal successors, (171), 116 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:54,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 171 transitions. [2024-11-08 17:13:54,288 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 171 transitions. Word has length 39 [2024-11-08 17:13:54,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:54,289 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 171 transitions. [2024-11-08 17:13:54,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:54,290 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 171 transitions. [2024-11-08 17:13:54,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-08 17:13:54,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:54,293 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:54,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:13:54,294 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:54,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:54,295 INFO L85 PathProgramCache]: Analyzing trace with hash 855071109, now seen corresponding path program 1 times [2024-11-08 17:13:54,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:54,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508294094] [2024-11-08 17:13:54,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:54,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:54,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:54,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:54,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508294094] [2024-11-08 17:13:54,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508294094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:54,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:54,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:13:54,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123944705] [2024-11-08 17:13:54,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:54,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:13:54,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:54,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:13:54,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:13:54,573 INFO L87 Difference]: Start difference. First operand 117 states and 171 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:54,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:54,641 INFO L93 Difference]: Finished difference Result 194 states and 283 transitions. [2024-11-08 17:13:54,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:13:54,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-11-08 17:13:54,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:54,644 INFO L225 Difference]: With dead ends: 194 [2024-11-08 17:13:54,644 INFO L226 Difference]: Without dead ends: 119 [2024-11-08 17:13:54,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:13:54,646 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:13:54,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 491 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:13:54,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-08 17:13:54,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-11-08 17:13:54,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 118 states have (on average 1.4661016949152543) internal successors, (173), 118 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:54,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 173 transitions. [2024-11-08 17:13:54,658 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 173 transitions. Word has length 40 [2024-11-08 17:13:54,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:54,658 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 173 transitions. [2024-11-08 17:13:54,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:54,659 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 173 transitions. [2024-11-08 17:13:54,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-08 17:13:54,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:54,660 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:54,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:13:54,661 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:54,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:54,662 INFO L85 PathProgramCache]: Analyzing trace with hash -360565114, now seen corresponding path program 1 times [2024-11-08 17:13:54,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:54,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699756358] [2024-11-08 17:13:54,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:54,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:55,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:55,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:55,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699756358] [2024-11-08 17:13:55,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699756358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:55,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:55,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:13:55,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152674024] [2024-11-08 17:13:55,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:55,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:13:55,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:55,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:13:55,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:13:55,273 INFO L87 Difference]: Start difference. First operand 119 states and 173 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:55,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:55,436 INFO L93 Difference]: Finished difference Result 200 states and 290 transitions. [2024-11-08 17:13:55,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:13:55,436 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-08 17:13:55,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:55,438 INFO L225 Difference]: With dead ends: 200 [2024-11-08 17:13:55,438 INFO L226 Difference]: Without dead ends: 123 [2024-11-08 17:13:55,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:13:55,440 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 144 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:13:55,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 609 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:13:55,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-08 17:13:55,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 122. [2024-11-08 17:13:55,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 121 states have (on average 1.4545454545454546) internal successors, (176), 121 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:55,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 176 transitions. [2024-11-08 17:13:55,455 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 176 transitions. Word has length 41 [2024-11-08 17:13:55,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:55,456 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 176 transitions. [2024-11-08 17:13:55,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:13:55,456 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 176 transitions. [2024-11-08 17:13:55,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-08 17:13:55,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:55,458 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:55,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:13:55,458 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:13:55,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:55,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1023038616, now seen corresponding path program 1 times [2024-11-08 17:13:55,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:55,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134025524] [2024-11-08 17:13:55,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:55,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:13:55,531 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:13:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:13:55,600 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:13:55,600 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:13:55,602 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 17:13:55,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:13:55,608 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-08 17:13:55,663 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-08 17:13:55,683 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:13:55,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:13:55 BoogieIcfgContainer [2024-11-08 17:13:55,693 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:13:55,694 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:13:55,694 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:13:55,694 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:13:55,695 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:13:52" (3/4) ... [2024-11-08 17:13:55,698 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 17:13:55,700 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:13:55,702 INFO L158 Benchmark]: Toolchain (without parser) took 5173.60ms. Allocated memory was 123.7MB in the beginning and 186.6MB in the end (delta: 62.9MB). Free memory was 91.3MB in the beginning and 135.0MB in the end (delta: -43.7MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2024-11-08 17:13:55,702 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 123.7MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:13:55,703 INFO L158 Benchmark]: CACSL2BoogieTranslator took 603.44ms. Allocated memory is still 123.7MB. Free memory was 91.3MB in the beginning and 69.4MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 17:13:55,705 INFO L158 Benchmark]: Boogie Procedure Inliner took 169.63ms. Allocated memory is still 123.7MB. Free memory was 69.4MB in the beginning and 57.3MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 17:13:55,705 INFO L158 Benchmark]: Boogie Preprocessor took 173.72ms. Allocated memory is still 123.7MB. Free memory was 57.3MB in the beginning and 49.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 17:13:55,708 INFO L158 Benchmark]: RCFGBuilder took 1480.24ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 49.0MB in the beginning and 112.2MB in the end (delta: -63.2MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2024-11-08 17:13:55,708 INFO L158 Benchmark]: TraceAbstraction took 2730.69ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 111.2MB in the beginning and 136.0MB in the end (delta: -24.9MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2024-11-08 17:13:55,709 INFO L158 Benchmark]: Witness Printer took 6.09ms. Allocated memory is still 186.6MB. Free memory was 136.0MB in the beginning and 135.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:13:55,713 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 123.7MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 603.44ms. Allocated memory is still 123.7MB. Free memory was 91.3MB in the beginning and 69.4MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 169.63ms. Allocated memory is still 123.7MB. Free memory was 69.4MB in the beginning and 57.3MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 173.72ms. Allocated memory is still 123.7MB. Free memory was 57.3MB in the beginning and 49.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1480.24ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 49.0MB in the beginning and 112.2MB in the end (delta: -63.2MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2730.69ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 111.2MB in the beginning and 136.0MB in the end (delta: -24.9MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Witness Printer took 6.09ms. Allocated memory is still 186.6MB. Free memory was 136.0MB in the beginning and 135.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 149. 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 VAL [mask_SORT_16=3, mask_SORT_3=1, var_17=0, var_20=3, var_22=1, var_36=0, var_77=2, var_80=1, var_92=0] [L72] SORT_16 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_16; [L73] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_16=3, mask_SORT_3=1, var_17=0, var_20=3, var_22=1, var_36=0, var_77=2, var_80=1, var_92=0] [L73] SORT_3 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L74] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_16=3, mask_SORT_3=1, var_17=0, var_20=3, var_22=1, var_36=0, var_77=2, var_80=1, var_92=0] [L74] SORT_3 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L75] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_16=3, mask_SORT_3=1, var_17=0, var_20=3, var_22=1, var_36=0, var_77=2, var_80=1, var_92=0] [L75] SORT_3 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L76] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_16=3, mask_SORT_3=1, var_17=0, var_20=3, var_22=1, var_36=0, var_77=2, var_80=1, var_92=0] [L76] SORT_3 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_16=3, mask_SORT_3=1, var_17=0, var_20=3, var_22=1, var_36=0, var_77=2, var_80=1, var_92=0] [L77] SORT_3 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_16=3, mask_SORT_3=1, var_17=0, var_20=3, var_22=1, var_36=0, var_77=2, var_80=1, var_92=0] [L78] SORT_3 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_16=3, mask_SORT_3=1, var_17=0, var_20=3, var_22=1, var_36=0, var_77=2, var_80=1, var_92=0] [L79] SORT_3 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_16=3, mask_SORT_3=1, var_17=0, var_20=3, var_22=1, var_36=0, var_77=2, var_80=1, var_92=0] [L80] SORT_3 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_16=3, mask_SORT_3=1, var_17=0, var_20=3, var_22=1, var_36=0, var_77=2, var_80=1, var_92=0] [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 [mask_SORT_16=3, mask_SORT_3=1, 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 VAL [mask_SORT_16=3, mask_SORT_3=1, 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] [L110] input_7 = input_7 & mask_SORT_3 [L111] input_8 = __VERIFIER_nondet_uchar() [L112] EXPR input_8 & mask_SORT_3 VAL [input_7=0, mask_SORT_16=3, mask_SORT_3=1, 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] [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 VAL [input_7=0, input_8=0, mask_SORT_16=3, mask_SORT_3=1, 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] [L115] input_10 = input_10 & mask_SORT_3 [L116] input_11 = __VERIFIER_nondet_uchar() [L117] EXPR input_11 & mask_SORT_3 VAL [input_10=0, input_7=0, input_8=0, mask_SORT_16=3, mask_SORT_3=1, 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] [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; VAL [input_10=0, input_11=0, input_7=0, input_8=0, mask_SORT_16=3, mask_SORT_3=1, 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_26_arg_0=1, var_26_arg_1=1, var_36=0, var_77=2, var_80=1, var_92=0] [L144] EXPR var_26_arg_0 | var_26_arg_1 VAL [input_10=0, input_11=0, input_7=0, input_8=0, mask_SORT_16=3, mask_SORT_3=1, 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] [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; VAL [input_10=0, input_11=0, input_7=0, input_8=0, mask_SORT_16=3, mask_SORT_3=1, 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_30_arg_0=1, var_30_arg_1=-2, var_36=0, var_77=2, var_80=1, var_92=0] [L149] EXPR var_30_arg_0 & var_30_arg_1 VAL [input_10=0, input_11=0, input_7=0, input_8=0, mask_SORT_16=3, mask_SORT_3=1, 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] [L149] SORT_3 var_30 = var_30_arg_0 & var_30_arg_1; [L150] EXPR var_30 & mask_SORT_3 VAL [input_10=0, input_11=0, input_7=0, input_8=0, mask_SORT_16=3, mask_SORT_3=1, 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] [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) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 144 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 144 mSDsluCounter, 1595 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1107 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 488 mSDtfsCounter, 89 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=122occurred in iteration=3, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 221 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 [2024-11-08 17:13:55,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/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_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX --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 0.2.5-dev-a016563 [2024-11-08 17:13:58,307 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:13:58,407 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-08 17:13:58,415 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:13:58,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:13:58,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:13:58,476 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:13:58,477 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:13:58,478 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:13:58,479 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:13:58,480 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:13:58,480 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:13:58,481 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:13:58,481 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:13:58,482 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:13:58,484 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:13:58,485 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:13:58,485 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:13:58,485 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:13:58,486 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:13:58,486 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:13:58,488 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 17:13:58,488 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 17:13:58,488 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:13:58,489 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 17:13:58,489 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:13:58,489 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:13:58,490 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:13:58,490 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:13:58,490 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:13:58,491 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:13:58,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:13:58,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:13:58,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:13:58,493 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:13:58,493 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 17:13:58,494 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 17:13:58,495 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:13:58,495 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:13:58,495 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:13:58,495 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:13:58,496 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_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ef8d174762b17df623a48d7afe94f1e8bc5e2233dcaad9b42847f8ac912d010 [2024-11-08 17:13:58,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:13:58,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:13:58,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:13:58,972 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:13:58,973 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:13:58,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c Unable to find full path for "g++" [2024-11-08 17:14:01,356 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:14:01,619 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:14:01,620 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2024-11-08 17:14:01,631 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/data/00af4b1eb/f08e883f6d73481c9abf82480aef8bcc/FLAG01c1b2198 [2024-11-08 17:14:01,648 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/data/00af4b1eb/f08e883f6d73481c9abf82480aef8bcc [2024-11-08 17:14:01,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:14:01,652 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:14:01,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:14:01,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:14:01,659 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:14:01,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:14:01" (1/1) ... [2024-11-08 17:14:01,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39eb2795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:01, skipping insertion in model container [2024-11-08 17:14:01,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:14:01" (1/1) ... [2024-11-08 17:14:01,700 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:14:01,917 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1258,1271] [2024-11-08 17:14:02,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:14:02,104 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:14:02,118 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1258,1271] [2024-11-08 17:14:02,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:14:02,252 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:14:02,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:02 WrapperNode [2024-11-08 17:14:02,253 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:14:02,255 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:14:02,255 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:14:02,256 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:14:02,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:02" (1/1) ... [2024-11-08 17:14:02,286 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:02" (1/1) ... [2024-11-08 17:14:02,348 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 403 [2024-11-08 17:14:02,349 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:14:02,349 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:14:02,350 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:14:02,350 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:14:02,362 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:02" (1/1) ... [2024-11-08 17:14:02,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:02" (1/1) ... [2024-11-08 17:14:02,368 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:02" (1/1) ... [2024-11-08 17:14:02,386 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 17:14:02,387 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:02" (1/1) ... [2024-11-08 17:14:02,387 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:02" (1/1) ... [2024-11-08 17:14:02,420 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:02" (1/1) ... [2024-11-08 17:14:02,424 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:02" (1/1) ... [2024-11-08 17:14:02,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:02" (1/1) ... [2024-11-08 17:14:02,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:02" (1/1) ... [2024-11-08 17:14:02,436 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:14:02,437 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:14:02,437 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:14:02,438 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:14:02,438 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:02" (1/1) ... [2024-11-08 17:14:02,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:14:02,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:14:02,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:14:02,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:14:02,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:14:02,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 17:14:02,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:14:02,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:14:02,791 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:14:02,794 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:14:03,328 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-11-08 17:14:03,328 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:14:03,341 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:14:03,342 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 17:14:03,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:14:03 BoogieIcfgContainer [2024-11-08 17:14:03,344 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:14:03,347 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:14:03,347 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:14:03,351 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:14:03,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:14:01" (1/3) ... [2024-11-08 17:14:03,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5888ad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:14:03, skipping insertion in model container [2024-11-08 17:14:03,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:02" (2/3) ... [2024-11-08 17:14:03,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5888ad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:14:03, skipping insertion in model container [2024-11-08 17:14:03,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:14:03" (3/3) ... [2024-11-08 17:14:03,356 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2024-11-08 17:14:03,377 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:14:03,378 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:14:03,452 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:14:03,459 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@690e4138, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:14:03,460 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:14:03,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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) [2024-11-08 17:14:03,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 17:14:03,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:14:03,470 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-08 17:14:03,471 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:14:03,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:03,476 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2024-11-08 17:14:03,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:14:03,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124749621] [2024-11-08 17:14:03,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:03,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:14:03,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:14:03,491 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:14:03,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:14:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:03,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 17:14:03,698 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:14:03,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:14:03,919 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:14:03,920 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:14:03,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124749621] [2024-11-08 17:14:03,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124749621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:14:03,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:14:03,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:14:03,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917192690] [2024-11-08 17:14:03,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:14:03,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:14:03,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:14:03,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:14:03,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:14:03,965 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:04,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:14:04,053 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2024-11-08 17:14:04,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:14:04,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-08 17:14:04,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:14:04,066 INFO L225 Difference]: With dead ends: 19 [2024-11-08 17:14:04,067 INFO L226 Difference]: Without dead ends: 10 [2024-11-08 17:14:04,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:14:04,078 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:14:04,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:14:04,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-08 17:14:04,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-08 17:14:04,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:04,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-08 17:14:04,115 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-08 17:14:04,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:14:04,116 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-08 17:14:04,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:04,116 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-08 17:14:04,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 17:14:04,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:14:04,117 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-08 17:14:04,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:14:04,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:14:04,318 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:14:04,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:04,319 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2024-11-08 17:14:04,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:14:04,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [258573701] [2024-11-08 17:14:04,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:04,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:14:04,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:14:04,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:14:04,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:14:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:04,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 17:14:04,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:14:05,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:14:05,910 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:14:10,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:14:10,346 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:14:10,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258573701] [2024-11-08 17:14:10,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258573701] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:14:10,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:14:10,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-08 17:14:10,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799887842] [2024-11-08 17:14:10,347 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:14:10,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:14:10,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:14:10,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:14:10,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:14:10,352 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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) [2024-11-08 17:14:10,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:14:10,482 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-08 17:14:10,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:14:10,483 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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) Word has length 8 [2024-11-08 17:14:10,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:14:10,484 INFO L225 Difference]: With dead ends: 15 [2024-11-08 17:14:10,484 INFO L226 Difference]: Without dead ends: 13 [2024-11-08 17:14:10,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:14:10,487 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:14:10,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 19 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:14:10,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-08 17:14:10,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-08 17:14:10,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:14:10,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-08 17:14:10,495 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-08 17:14:10,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:14:10,496 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-08 17:14:10,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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) [2024-11-08 17:14:10,497 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-08 17:14:10,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 17:14:10,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:14:10,498 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-08 17:14:10,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 17:14:10,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:14:10,703 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:14:10,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:10,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2024-11-08 17:14:10,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:14:10,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [245241855] [2024-11-08 17:14:10,710 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 17:14:10,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:14:10,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:14:10,712 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:14:10,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69fc96aa-15f5-4aed-b468-771efaffc6f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:14:10,935 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 17:14:10,935 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:14:10,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 17:14:10,949 INFO L278 TraceCheckSpWp]: Computing forward predicates...