./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 03c3c0226be86be0ec03a0662affe26020abe8242f0c910b49f1d4231c5f2564 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:01:41,879 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:01:41,983 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 21:01:41,988 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:01:41,988 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:01:42,013 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:01:42,014 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:01:42,014 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:01:42,015 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:01:42,016 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:01:42,017 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:01:42,017 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:01:42,018 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:01:42,019 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:01:42,019 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:01:42,020 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:01:42,021 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:01:42,021 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:01:42,022 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:01:42,022 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:01:42,023 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:01:42,024 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:01:42,024 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:01:42,025 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:01:42,025 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:01:42,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:01:42,026 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 21:01:42,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:01:42,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:01:42,028 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:01:42,029 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:01:42,029 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:01:42,030 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:01:42,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:01:42,031 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:01:42,031 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:01:42,032 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:01:42,033 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:01:42,033 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:01:42,034 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_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03c3c0226be86be0ec03a0662affe26020abe8242f0c910b49f1d4231c5f2564 [2023-11-21 21:01:42,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:01:42,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:01:42,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:01:42,352 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:01:42,352 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:01:42,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p3.c [2023-11-21 21:01:45,429 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:01:45,806 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:01:45,807 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p3.c [2023-11-21 21:01:45,831 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/data/14e569344/b1c5566457ba460e99863a7ea5409152/FLAG96a048389 [2023-11-21 21:01:45,846 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/data/14e569344/b1c5566457ba460e99863a7ea5409152 [2023-11-21 21:01:45,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:01:45,860 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:01:45,863 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:01:45,863 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:01:45,869 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:01:45,871 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:01:45" (1/1) ... [2023-11-21 21:01:45,872 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a998bb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:45, skipping insertion in model container [2023-11-21 21:01:45,872 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:01:45" (1/1) ... [2023-11-21 21:01:45,950 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:01:46,183 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p3.c[1260,1273] [2023-11-21 21:01:46,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:01:46,760 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:01:46,776 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p3.c[1260,1273] [2023-11-21 21:01:46,937 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:01:46,961 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:01:46,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:46 WrapperNode [2023-11-21 21:01:46,962 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:01:46,963 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:01:46,963 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:01:46,963 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:01:46,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:46" (1/1) ... [2023-11-21 21:01:47,050 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:46" (1/1) ... [2023-11-21 21:01:47,834 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5618 [2023-11-21 21:01:47,835 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:01:47,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:01:47,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:01:47,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:01:47,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:46" (1/1) ... [2023-11-21 21:01:47,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:46" (1/1) ... [2023-11-21 21:01:48,013 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:46" (1/1) ... [2023-11-21 21:01:48,195 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 21:01:48,195 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:46" (1/1) ... [2023-11-21 21:01:48,196 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:46" (1/1) ... [2023-11-21 21:01:48,419 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:46" (1/1) ... [2023-11-21 21:01:48,496 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:46" (1/1) ... [2023-11-21 21:01:48,536 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:46" (1/1) ... [2023-11-21 21:01:48,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:46" (1/1) ... [2023-11-21 21:01:48,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:01:48,753 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:01:48,753 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:01:48,753 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:01:48,754 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:46" (1/1) ... [2023-11-21 21:01:48,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:01:48,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:48,813 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:48,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:01:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:01:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 21:01:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:01:48,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:01:49,396 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:01:49,399 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:01:53,544 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:02:08,704 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:02:08,704 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 21:02:08,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:08 BoogieIcfgContainer [2023-11-21 21:02:08,706 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:02:08,708 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:02:08,708 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:02:08,712 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:02:08,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:01:45" (1/3) ... [2023-11-21 21:02:08,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22478146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:02:08, skipping insertion in model container [2023-11-21 21:02:08,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:46" (2/3) ... [2023-11-21 21:02:08,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22478146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:02:08, skipping insertion in model container [2023-11-21 21:02:08,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:08" (3/3) ... [2023-11-21 21:02:08,715 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_am2910_p3.c [2023-11-21 21:02:08,737 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:02:08,737 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 21:02:08,795 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:02:08,802 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@cbe42b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:02:08,802 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 21:02:08,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:08,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 21:02:08,813 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:08,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 21:02:08,816 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:02:08,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:08,821 INFO L85 PathProgramCache]: Analyzing trace with hash 192413945, now seen corresponding path program 1 times [2023-11-21 21:02:08,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:08,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972752010] [2023-11-21 21:02:08,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:08,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:09,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:10,052 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:02:10,056 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 21:02:10,057 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 21:02:10,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:02:10,064 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 21:02:10,075 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 21:02:10,136 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-21 21:02:10,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:02:10 BoogieIcfgContainer [2023-11-21 21:02:10,159 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 21:02:10,161 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:02:10,161 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:02:10,161 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:02:10,162 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:08" (3/4) ... [2023-11-21 21:02:10,166 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 21:02:10,167 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:02:10,169 INFO L158 Benchmark]: Toolchain (without parser) took 24308.40ms. Allocated memory was 146.8MB in the beginning and 5.8GB in the end (delta: 5.7GB). Free memory was 99.2MB in the beginning and 5.0GB in the end (delta: -4.9GB). Peak memory consumption was 803.8MB. Max. memory is 16.1GB. [2023-11-21 21:02:10,170 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 59.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:02:10,171 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1099.49ms. Allocated memory is still 146.8MB. Free memory was 99.2MB in the beginning and 66.6MB in the end (delta: 32.6MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2023-11-21 21:02:10,172 INFO L158 Benchmark]: Boogie Procedure Inliner took 871.92ms. Allocated memory was 146.8MB in the beginning and 188.7MB in the end (delta: 41.9MB). Free memory was 66.6MB in the beginning and 71.6MB in the end (delta: -5.1MB). Peak memory consumption was 96.4MB. Max. memory is 16.1GB. [2023-11-21 21:02:10,180 INFO L158 Benchmark]: Boogie Preprocessor took 915.75ms. Allocated memory was 188.7MB in the beginning and 377.5MB in the end (delta: 188.7MB). Free memory was 71.6MB in the beginning and 227.3MB in the end (delta: -155.7MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2023-11-21 21:02:10,181 INFO L158 Benchmark]: RCFGBuilder took 19952.91ms. Allocated memory was 377.5MB in the beginning and 5.8GB in the end (delta: 5.5GB). Free memory was 226.3MB in the beginning and 5.1GB in the end (delta: -4.9GB). Peak memory consumption was 706.0MB. Max. memory is 16.1GB. [2023-11-21 21:02:10,182 INFO L158 Benchmark]: TraceAbstraction took 1450.93ms. Allocated memory is still 5.8GB. Free memory was 5.1GB in the beginning and 5.0GB in the end (delta: 101.7MB). Peak memory consumption was 102.8MB. Max. memory is 16.1GB. [2023-11-21 21:02:10,182 INFO L158 Benchmark]: Witness Printer took 6.91ms. Allocated memory is still 5.8GB. Free memory is still 5.0GB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:02:10,191 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 59.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1099.49ms. Allocated memory is still 146.8MB. Free memory was 99.2MB in the beginning and 66.6MB in the end (delta: 32.6MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 871.92ms. Allocated memory was 146.8MB in the beginning and 188.7MB in the end (delta: 41.9MB). Free memory was 66.6MB in the beginning and 71.6MB in the end (delta: -5.1MB). Peak memory consumption was 96.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 915.75ms. Allocated memory was 188.7MB in the beginning and 377.5MB in the end (delta: 188.7MB). Free memory was 71.6MB in the beginning and 227.3MB in the end (delta: -155.7MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. * RCFGBuilder took 19952.91ms. Allocated memory was 377.5MB in the beginning and 5.8GB in the end (delta: 5.5GB). Free memory was 226.3MB in the beginning and 5.1GB in the end (delta: -4.9GB). Peak memory consumption was 706.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1450.93ms. Allocated memory is still 5.8GB. Free memory was 5.1GB in the beginning and 5.0GB in the end (delta: 101.7MB). Peak memory consumption was 102.8MB. Max. memory is 16.1GB. * Witness Printer took 6.91ms. Allocated memory is still 5.8GB. Free memory is still 5.0GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 174, overapproximation of bitwiseAnd at line 153. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 12); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (12 - 1); [L29] const SORT_8 mask_SORT_8 = (SORT_8)-1 >> (sizeof(SORT_8) * 8 - 1); [L30] const SORT_8 msb_SORT_8 = (SORT_8)1 << (1 - 1); [L32] const SORT_13 mask_SORT_13 = (SORT_13)-1 >> (sizeof(SORT_13) * 8 - 4); [L33] const SORT_13 msb_SORT_13 = (SORT_13)1 << (4 - 1); [L35] const SORT_97 mask_SORT_97 = (SORT_97)-1 >> (sizeof(SORT_97) * 8 - 3); [L36] const SORT_97 msb_SORT_97 = (SORT_97)1 << (3 - 1); [L38] const SORT_305 mask_SORT_305 = (SORT_305)-1 >> (sizeof(SORT_305) * 8 - 2); [L39] const SORT_305 msb_SORT_305 = (SORT_305)1 << (2 - 1); [L41] const SORT_309 mask_SORT_309 = (SORT_309)-1 >> (sizeof(SORT_309) * 8 - 5); [L42] const SORT_309 msb_SORT_309 = (SORT_309)1 << (5 - 1); [L44] const SORT_311 mask_SORT_311 = (SORT_311)-1 >> (sizeof(SORT_311) * 8 - 6); [L45] const SORT_311 msb_SORT_311 = (SORT_311)1 << (6 - 1); [L47] const SORT_313 mask_SORT_313 = (SORT_313)-1 >> (sizeof(SORT_313) * 8 - 7); [L48] const SORT_313 msb_SORT_313 = (SORT_313)1 << (7 - 1); [L50] const SORT_315 mask_SORT_315 = (SORT_315)-1 >> (sizeof(SORT_315) * 8 - 8); [L51] const SORT_315 msb_SORT_315 = (SORT_315)1 << (8 - 1); [L53] const SORT_317 mask_SORT_317 = (SORT_317)-1 >> (sizeof(SORT_317) * 8 - 9); [L54] const SORT_317 msb_SORT_317 = (SORT_317)1 << (9 - 1); [L56] const SORT_319 mask_SORT_319 = (SORT_319)-1 >> (sizeof(SORT_319) * 8 - 10); [L57] const SORT_319 msb_SORT_319 = (SORT_319)1 << (10 - 1); [L59] const SORT_321 mask_SORT_321 = (SORT_321)-1 >> (sizeof(SORT_321) * 8 - 11); [L60] const SORT_321 msb_SORT_321 = (SORT_321)1 << (11 - 1); [L62] const SORT_8 var_18 = 0; [L63] const SORT_1 var_22 = 0; [L64] const SORT_1 var_25 = 2; [L65] const SORT_1 var_47 = 1; [L66] const SORT_8 var_52 = 1; [L67] const SORT_13 var_56 = 2; [L68] const SORT_13 var_61 = 9; [L69] const SORT_13 var_69 = 15; [L70] const SORT_13 var_74 = 1; [L71] const SORT_13 var_76 = 3; [L72] const SORT_13 var_79 = 5; [L73] const SORT_13 var_82 = 7; [L74] const SORT_13 var_85 = 11; [L75] const SORT_97 var_98 = 0; [L76] const SORT_13 var_111 = 8; [L77] const SORT_13 var_115 = 10; [L78] const SORT_13 var_119 = 13; [L79] const SORT_13 var_130 = 4; [L80] const SORT_13 var_132 = 12; [L81] const SORT_13 var_135 = 14; [L82] const SORT_13 var_141 = 6; [L83] const SORT_13 var_168 = 0; [L84] const SORT_97 var_216 = 1; [L85] const SORT_97 var_218 = 5; [L86] const SORT_1 var_245 = 4095; [L87] const SORT_321 var_592 = 0; [L89] SORT_1 input_2; [L90] SORT_1 input_3; [L91] SORT_1 input_4; [L92] SORT_1 input_5; [L93] SORT_1 input_6; [L94] SORT_1 input_7; [L95] SORT_8 input_9; [L96] SORT_8 input_10; [L97] SORT_8 input_11; [L98] SORT_1 input_12; [L99] SORT_13 input_14; [L100] SORT_8 input_15; [L101] SORT_8 input_16; [L102] SORT_8 input_17; [L103] SORT_1 input_210; [L104] SORT_97 input_212; [L105] SORT_1 input_232; [L106] SORT_97 input_235; [L108] EXPR __VERIFIER_nondet_uchar() & mask_SORT_8 [L108] SORT_8 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_8; [L109] EXPR __VERIFIER_nondet_ushort() & mask_SORT_1 [L109] SORT_1 state_23 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L110] EXPR __VERIFIER_nondet_ushort() & mask_SORT_1 [L110] SORT_1 state_28 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L111] EXPR __VERIFIER_nondet_ushort() & mask_SORT_1 [L111] SORT_1 state_30 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L112] EXPR __VERIFIER_nondet_ushort() & mask_SORT_1 [L112] SORT_1 state_33 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L113] EXPR __VERIFIER_nondet_ushort() & mask_SORT_1 [L113] SORT_1 state_35 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L114] EXPR __VERIFIER_nondet_ushort() & mask_SORT_1 [L114] SORT_1 state_39 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L115] EXPR __VERIFIER_nondet_ushort() & mask_SORT_1 [L115] SORT_1 state_41 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L116] EXPR __VERIFIER_nondet_ushort() & mask_SORT_1 [L116] SORT_1 state_58 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L117] EXPR __VERIFIER_nondet_uchar() & mask_SORT_97 [L117] SORT_97 state_99 = __VERIFIER_nondet_uchar() & mask_SORT_97; [L118] EXPR __VERIFIER_nondet_ushort() & mask_SORT_1 [L118] SORT_1 state_128 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L120] SORT_8 init_20_arg_1 = var_18; [L121] state_19 = init_20_arg_1 [L122] SORT_1 init_24_arg_1 = var_22; [L123] state_23 = init_24_arg_1 [L124] SORT_1 init_29_arg_1 = var_22; [L125] state_28 = init_29_arg_1 [L126] SORT_1 init_31_arg_1 = var_22; [L127] state_30 = init_31_arg_1 [L128] SORT_1 init_34_arg_1 = var_22; [L129] state_33 = init_34_arg_1 [L130] SORT_1 init_36_arg_1 = var_22; [L131] state_35 = init_36_arg_1 [L132] SORT_1 init_40_arg_1 = var_22; [L133] state_39 = init_40_arg_1 [L134] SORT_1 init_42_arg_1 = var_22; [L135] state_41 = init_42_arg_1 [L136] SORT_1 init_59_arg_1 = var_22; [L137] state_58 = init_59_arg_1 [L138] SORT_97 init_100_arg_1 = var_98; [L139] state_99 = init_100_arg_1 [L140] SORT_1 init_129_arg_1 = var_22; [L141] state_128 = init_129_arg_1 VAL [init_100_arg_1=0, init_129_arg_1=0, init_20_arg_1=0, init_24_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_59_arg_1=0, mask_SORT_13=15, mask_SORT_1=4095, mask_SORT_305=3, mask_SORT_309=31, mask_SORT_311=63, mask_SORT_313=127, mask_SORT_315=255, mask_SORT_317=511, mask_SORT_319=1023, mask_SORT_321=2047, mask_SORT_8=1, mask_SORT_97=7, msb_SORT_13=8, msb_SORT_1=2048, msb_SORT_305=2, msb_SORT_309=16, msb_SORT_311=32, msb_SORT_313=64, msb_SORT_315=128, msb_SORT_317=256, msb_SORT_319=512, msb_SORT_321=1024, msb_SORT_8=1, msb_SORT_97=4, state_128=0, state_19=0, state_23=0, state_28=0, state_30=0, state_33=0, state_35=0, state_39=0, state_41=0, state_58=0, state_99=0, var_111=8, var_115=10, var_119=13, var_130=4, var_132=12, var_135=14, var_141=6, var_168=0, var_18=0, var_216=1, var_218=5, var_22=0, var_245=4095, var_25=2, var_47=1, var_52=1, var_56=2, var_592=0, var_61=9, var_69=15, var_74=1, var_76=3, var_79=5, var_82=7, var_85=11, var_98=0] [L144] input_2 = __VERIFIER_nondet_ushort() [L145] input_3 = __VERIFIER_nondet_ushort() [L146] input_4 = __VERIFIER_nondet_ushort() [L147] input_5 = __VERIFIER_nondet_ushort() [L148] input_6 = __VERIFIER_nondet_ushort() [L149] input_7 = __VERIFIER_nondet_ushort() [L150] input_9 = __VERIFIER_nondet_uchar() [L151] input_10 = __VERIFIER_nondet_uchar() [L152] input_11 = __VERIFIER_nondet_uchar() [L153] EXPR input_11 & mask_SORT_8 [L153] input_11 = input_11 & mask_SORT_8 [L154] input_12 = __VERIFIER_nondet_ushort() [L155] input_14 = __VERIFIER_nondet_uchar() [L156] EXPR input_14 & mask_SORT_13 [L156] input_14 = input_14 & mask_SORT_13 [L157] input_15 = __VERIFIER_nondet_uchar() [L158] input_16 = __VERIFIER_nondet_uchar() [L159] input_17 = __VERIFIER_nondet_uchar() [L160] input_210 = __VERIFIER_nondet_ushort() [L161] input_212 = __VERIFIER_nondet_uchar() [L162] input_232 = __VERIFIER_nondet_ushort() [L163] input_235 = __VERIFIER_nondet_uchar() [L166] SORT_8 var_21_arg_0 = state_19; [L167] SORT_8 var_21_arg_1 = var_18; [L168] SORT_8 var_21 = var_21_arg_0 == var_21_arg_1; [L169] SORT_1 var_26_arg_0 = state_23; [L170] SORT_1 var_26_arg_1 = var_25; [L171] SORT_8 var_26 = var_26_arg_0 != var_26_arg_1; [L172] SORT_8 var_27_arg_0 = var_21; [L173] SORT_8 var_27_arg_1 = var_26; [L174] EXPR var_27_arg_0 | var_27_arg_1 [L174] SORT_8 var_27 = var_27_arg_0 | var_27_arg_1; [L175] SORT_8 var_44_arg_0 = var_18; [L176] SORT_1 var_44_arg_1 = input_7; [L177] SORT_1 var_44_arg_2 = input_6; [L178] SORT_1 var_44 = var_44_arg_0 ? var_44_arg_1 : var_44_arg_2; [L179] SORT_8 var_43_arg_0 = var_18; [L180] SORT_1 var_43_arg_1 = state_41; [L181] SORT_1 var_43_arg_2 = state_39; [L182] SORT_1 var_43 = var_43_arg_0 ? var_43_arg_1 : var_43_arg_2; [L183] SORT_8 var_45_arg_0 = var_18; [L184] SORT_1 var_45_arg_1 = var_44; [L185] SORT_1 var_45_arg_2 = var_43; [L186] SORT_1 var_45 = var_45_arg_0 ? var_45_arg_1 : var_45_arg_2; [L187] SORT_8 var_37_arg_0 = var_18; [L188] SORT_1 var_37_arg_1 = state_35; [L189] SORT_1 var_37_arg_2 = state_33; [L190] SORT_1 var_37 = var_37_arg_0 ? var_37_arg_1 : var_37_arg_2; [L191] SORT_8 var_32_arg_0 = var_18; [L192] SORT_1 var_32_arg_1 = state_30; [L193] SORT_1 var_32_arg_2 = state_28; [L194] SORT_1 var_32 = var_32_arg_0 ? var_32_arg_1 : var_32_arg_2; [L195] SORT_8 var_38_arg_0 = var_18; [L196] SORT_1 var_38_arg_1 = var_37; [L197] SORT_1 var_38_arg_2 = var_32; [L198] SORT_1 var_38 = var_38_arg_0 ? var_38_arg_1 : var_38_arg_2; [L199] SORT_8 var_46_arg_0 = var_18; [L200] SORT_1 var_46_arg_1 = var_45; [L201] SORT_1 var_46_arg_2 = var_38; [L202] SORT_1 var_46 = var_46_arg_0 ? var_46_arg_1 : var_46_arg_2; [L203] EXPR var_46 & mask_SORT_1 [L203] var_46 = var_46 & mask_SORT_1 [L204] SORT_1 var_48_arg_0 = var_46; [L205] SORT_1 var_48_arg_1 = var_47; [L206] SORT_8 var_48 = var_48_arg_0 == var_48_arg_1; [L207] SORT_8 var_49_arg_0 = var_27; [L208] SORT_8 var_49_arg_1 = var_48; [L209] EXPR var_49_arg_0 | var_49_arg_1 [L209] SORT_8 var_49 = var_49_arg_0 | var_49_arg_1; [L210] SORT_8 var_53_arg_0 = var_49; [L211] SORT_8 var_53 = ~var_53_arg_0; [L212] SORT_8 var_54_arg_0 = var_52; [L213] SORT_8 var_54_arg_1 = var_53; [L214] EXPR var_54_arg_0 & var_54_arg_1 [L214] SORT_8 var_54 = var_54_arg_0 & var_54_arg_1; [L215] EXPR var_54 & mask_SORT_8 [L215] var_54 = var_54 & mask_SORT_8 [L216] SORT_8 bad_55_arg_0 = var_54; [L217] CALL __VERIFIER_assert(!(bad_55_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 21:02:10,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 03c3c0226be86be0ec03a0662affe26020abe8242f0c910b49f1d4231c5f2564 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:02:13,124 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:02:13,262 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-21 21:02:13,272 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:02:13,273 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:02:13,316 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:02:13,317 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:02:13,318 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:02:13,319 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:02:13,324 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:02:13,324 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:02:13,325 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:02:13,325 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:02:13,327 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:02:13,328 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:02:13,328 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:02:13,329 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:02:13,329 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:02:13,330 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:02:13,331 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:02:13,331 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:02:13,332 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 21:02:13,332 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 21:02:13,332 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 21:02:13,333 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:02:13,333 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:02:13,334 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:02:13,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:02:13,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 21:02:13,336 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:02:13,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:02:13,338 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:02:13,338 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:02:13,338 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:02:13,338 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 21:02:13,339 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 21:02:13,340 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:02:13,340 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:02:13,340 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:02:13,340 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:02:13,341 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:02:13,341 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 21:02:13,341 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_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03c3c0226be86be0ec03a0662affe26020abe8242f0c910b49f1d4231c5f2564 [2023-11-21 21:02:13,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:02:13,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:02:13,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:02:13,867 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:02:13,867 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:02:13,869 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p3.c [2023-11-21 21:02:17,108 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:02:17,581 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:02:17,581 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p3.c [2023-11-21 21:02:17,617 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/data/1a9b90320/ebb7c906b2c14838967459948e359ac5/FLAG07e2dfcdc [2023-11-21 21:02:17,633 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/data/1a9b90320/ebb7c906b2c14838967459948e359ac5 [2023-11-21 21:02:17,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:02:17,640 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:02:17,643 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:02:17,643 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:02:17,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:02:17,649 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:02:17" (1/1) ... [2023-11-21 21:02:17,650 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b8ea03c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:17, skipping insertion in model container [2023-11-21 21:02:17,650 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:02:17" (1/1) ... [2023-11-21 21:02:17,735 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:02:17,973 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p3.c[1260,1273] [2023-11-21 21:02:18,396 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:02:18,409 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:02:18,422 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p3.c[1260,1273] [2023-11-21 21:02:18,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:02:18,607 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:02:18,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18 WrapperNode [2023-11-21 21:02:18,607 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:02:18,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:02:18,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:02:18,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:02:18,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,691 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,876 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1838 [2023-11-21 21:02:18,877 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:02:18,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:02:18,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:02:18,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:02:18,889 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,910 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,952 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 21:02:18,952 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:19,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:19,075 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:19,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:19,095 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:19,115 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:02:19,116 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:02:19,116 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:02:19,116 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:02:19,117 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:19,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:02:19,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:19,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:19,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:02:19,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:02:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 21:02:19,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:02:19,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:02:19,585 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:02:19,588 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:02:22,853 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:02:22,993 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:02:22,994 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 21:02:22,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:22 BoogieIcfgContainer [2023-11-21 21:02:22,995 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:02:22,998 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:02:22,998 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:02:23,001 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:02:23,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:02:17" (1/3) ... [2023-11-21 21:02:23,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59eec48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:02:23, skipping insertion in model container [2023-11-21 21:02:23,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18" (2/3) ... [2023-11-21 21:02:23,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59eec48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:02:23, skipping insertion in model container [2023-11-21 21:02:23,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:22" (3/3) ... [2023-11-21 21:02:23,005 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_am2910_p3.c [2023-11-21 21:02:23,027 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:02:23,027 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 21:02:23,126 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:02:23,133 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@9274c98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:02:23,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 21:02:23,137 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:23,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 21:02:23,154 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:23,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 21:02:23,156 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:02:23,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:23,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-21 21:02:23,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 21:02:23,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629408817] [2023-11-21 21:02:23,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:23,184 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 21:02:23,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 21:02:23,187 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 21:02:23,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-21 21:02:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:23,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-21 21:02:23,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:23,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:23,962 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 21:02:23,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 21:02:23,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629408817] [2023-11-21 21:02:23,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [629408817] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:23,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:23,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 21:02:23,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228708353] [2023-11-21 21:02:23,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:23,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 21:02:23,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 21:02:24,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 21:02:24,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 21:02:24,003 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:24,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:24,402 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2023-11-21 21:02:24,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 21:02:24,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-21 21:02:24,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:02:24,413 INFO L225 Difference]: With dead ends: 15 [2023-11-21 21:02:24,413 INFO L226 Difference]: Without dead ends: 9 [2023-11-21 21:02:24,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 21:02:24,420 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 21:02:24,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 21:02:24,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-21 21:02:24,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-21 21:02:24,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:24,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-21 21:02:24,453 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-21 21:02:24,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:02:24,453 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-21 21:02:24,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:24,454 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-21 21:02:24,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 21:02:24,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:24,454 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-21 21:02:24,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-21 21:02:24,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 21:02:24,657 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:02:24,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:24,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-21 21:02:24,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 21:02:24,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [129116562] [2023-11-21 21:02:24,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:24,662 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 21:02:24,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 21:02:24,664 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 21:02:24,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-21 21:02:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:27,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 1623 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-21 21:02:27,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:02:27,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:27,808 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 21:02:28,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:28,649 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 21:02:28,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [129116562] [2023-11-21 21:02:28,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [129116562] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 21:02:28,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 21:02:28,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-21 21:02:28,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063987432] [2023-11-21 21:02:28,650 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 21:02:28,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 21:02:28,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 21:02:28,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 21:02:28,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-21 21:02:28,653 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:29,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:29,328 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-21 21:02:29,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 21:02:29,329 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-21 21:02:29,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:02:29,330 INFO L225 Difference]: With dead ends: 14 [2023-11-21 21:02:29,330 INFO L226 Difference]: Without dead ends: 12 [2023-11-21 21:02:29,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-11-21 21:02:29,333 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-21 21:02:29,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 9 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-21 21:02:29,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-21 21:02:29,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-11-21 21:02:29,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:29,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-21 21:02:29,338 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-11-21 21:02:29,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:02:29,339 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-21 21:02:29,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:29,339 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-21 21:02:29,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 21:02:29,340 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:29,340 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-11-21 21:02:29,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-21 21:02:29,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 21:02:29,553 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:02:29,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:29,553 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-11-21 21:02:29,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 21:02:29,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [337626079] [2023-11-21 21:02:29,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 21:02:29,557 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 21:02:29,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 21:02:29,560 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 21:02:29,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5e69819-bedf-45c1-94ed-31c0b528908b/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process