./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB --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 a9bfc0bfd402f01a909df8198af653a6c40e8b771ded2d89ed782f9da2aa5bbb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:00:24,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:00:24,201 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 05:00:24,208 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:00:24,208 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:00:24,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:00:24,237 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:00:24,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:00:24,237 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:00:24,237 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:00:24,237 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:00:24,237 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:00:24,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:00:24,238 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:00:24,238 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:00:24,238 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:00:24,238 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:00:24,238 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:00:24,239 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:00:24,239 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:00:24,239 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:00:24,239 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:00:24,239 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:00:24,239 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:00:24,239 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:00:24,240 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:00:24,240 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:00:24,240 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:00:24,240 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:00:24,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:00:24,240 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:00:24,240 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:00:24,240 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:00:24,241 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:00:24,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:00:24,241 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:00:24,241 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:00:24,241 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:00:24,241 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:00:24,241 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:00:24,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:00:24,242 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:00:24,242 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:00:24,242 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:00:24,242 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:00:24,242 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB 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 -> a9bfc0bfd402f01a909df8198af653a6c40e8b771ded2d89ed782f9da2aa5bbb [2024-11-28 05:00:24,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:00:24,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:00:24,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:00:24,535 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:00:24,536 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:00:24,537 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2024-11-28 05:00:27,581 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/data/d25667b01/dcd1f0bfc89f42028def7e6552c07dce/FLAG82cf2194c [2024-11-28 05:00:27,846 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:00:27,846 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2024-11-28 05:00:27,854 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/data/d25667b01/dcd1f0bfc89f42028def7e6552c07dce/FLAG82cf2194c [2024-11-28 05:00:27,875 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/data/d25667b01/dcd1f0bfc89f42028def7e6552c07dce [2024-11-28 05:00:27,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:00:27,882 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:00:27,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:00:27,884 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:00:27,889 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:00:27,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:00:27" (1/1) ... [2024-11-28 05:00:27,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30676020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:27, skipping insertion in model container [2024-11-28 05:00:27,891 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:00:27" (1/1) ... [2024-11-28 05:00:27,910 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:00:28,083 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_90ab820f-fa25-4d36-b66e-38a9932d5cab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1439,1452] [2024-11-28 05:00:28,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:00:28,128 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:00:28,139 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_90ab820f-fa25-4d36-b66e-38a9932d5cab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1439,1452] [2024-11-28 05:00:28,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:00:28,173 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:00:28,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:28 WrapperNode [2024-11-28 05:00:28,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:00:28,175 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:00:28,175 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:00:28,175 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:00:28,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:28" (1/1) ... [2024-11-28 05:00:28,191 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:28" (1/1) ... [2024-11-28 05:00:28,225 INFO L138 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 97 [2024-11-28 05:00:28,226 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:00:28,226 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:00:28,226 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:00:28,226 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:00:28,237 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:28" (1/1) ... [2024-11-28 05:00:28,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:28" (1/1) ... [2024-11-28 05:00:28,241 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:28" (1/1) ... [2024-11-28 05:00:28,268 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]. [2024-11-28 05:00:28,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:28" (1/1) ... [2024-11-28 05:00:28,268 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:28" (1/1) ... [2024-11-28 05:00:28,277 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:28" (1/1) ... [2024-11-28 05:00:28,281 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:28" (1/1) ... [2024-11-28 05:00:28,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:28" (1/1) ... [2024-11-28 05:00:28,293 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:28" (1/1) ... [2024-11-28 05:00:28,297 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:28" (1/1) ... [2024-11-28 05:00:28,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:00:28,305 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:00:28,306 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:00:28,306 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:00:28,307 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:28" (1/1) ... [2024-11-28 05:00:28,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:00:28,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:28,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:00:28,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:00:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:00:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:00:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:00:28,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:00:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 05:00:28,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 05:00:28,480 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:00:28,482 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:00:28,912 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2024-11-28 05:00:28,913 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:00:28,923 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:00:28,923 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 05:00:28,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:00:28 BoogieIcfgContainer [2024-11-28 05:00:28,924 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:00:28,927 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:00:28,927 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:00:28,933 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:00:28,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:00:27" (1/3) ... [2024-11-28 05:00:28,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1550d6d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:00:28, skipping insertion in model container [2024-11-28 05:00:28,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:00:28" (2/3) ... [2024-11-28 05:00:28,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1550d6d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:00:28, skipping insertion in model container [2024-11-28 05:00:28,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:00:28" (3/3) ... [2024-11-28 05:00:28,935 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.factorial4even.c [2024-11-28 05:00:28,953 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:00:28,957 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.factorial4even.c that has 2 procedures, 36 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 05:00:29,017 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:00:29,030 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;@6b00741f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:00:29,030 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:00:29,034 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 32 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 05:00:29,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 05:00:29,041 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:29,041 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:29,042 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:29,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:29,047 INFO L85 PathProgramCache]: Analyzing trace with hash -709743488, now seen corresponding path program 1 times [2024-11-28 05:00:29,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:29,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811462986] [2024-11-28 05:00:29,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:29,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:29,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:29,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:29,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811462986] [2024-11-28 05:00:29,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811462986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:29,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:29,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:00:29,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541436873] [2024-11-28 05:00:29,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:29,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:00:29,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:29,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:00:29,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:00:29,874 INFO L87 Difference]: Start difference. First operand has 36 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 32 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:30,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:30,082 INFO L93 Difference]: Finished difference Result 80 states and 114 transitions. [2024-11-28 05:00:30,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:00:30,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-28 05:00:30,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:30,097 INFO L225 Difference]: With dead ends: 80 [2024-11-28 05:00:30,098 INFO L226 Difference]: Without dead ends: 54 [2024-11-28 05:00:30,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:00:30,107 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 93 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:30,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 183 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:00:30,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-28 05:00:30,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 39. [2024-11-28 05:00:30,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 05:00:30,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2024-11-28 05:00:30,157 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 11 [2024-11-28 05:00:30,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:30,159 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2024-11-28 05:00:30,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:00:30,159 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2024-11-28 05:00:30,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-28 05:00:30,161 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:30,161 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:30,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:00:30,162 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:30,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:30,164 INFO L85 PathProgramCache]: Analyzing trace with hash 831864686, now seen corresponding path program 1 times [2024-11-28 05:00:30,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:30,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445277703] [2024-11-28 05:00:30,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:30,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:30,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:30,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:30,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445277703] [2024-11-28 05:00:30,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445277703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:30,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:30,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:00:30,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066128658] [2024-11-28 05:00:30,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:30,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:00:30,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:30,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:00:30,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:00:30,461 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:00:30,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:30,577 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2024-11-28 05:00:30,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:00:30,581 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-11-28 05:00:30,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:30,583 INFO L225 Difference]: With dead ends: 52 [2024-11-28 05:00:30,583 INFO L226 Difference]: Without dead ends: 50 [2024-11-28 05:00:30,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:00:30,587 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 9 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:30,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 203 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:00:30,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-28 05:00:30,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 45. [2024-11-28 05:00:30,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 39 states have internal predecessors, (48), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 05:00:30,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2024-11-28 05:00:30,602 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 21 [2024-11-28 05:00:30,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:30,603 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2024-11-28 05:00:30,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:00:30,603 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2024-11-28 05:00:30,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-28 05:00:30,604 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:30,604 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:30,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:00:30,604 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:30,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:30,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1618847807, now seen corresponding path program 1 times [2024-11-28 05:00:30,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:30,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281704968] [2024-11-28 05:00:30,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:30,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:30,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:30,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:30,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281704968] [2024-11-28 05:00:30,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281704968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:30,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:30,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:00:30,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546269836] [2024-11-28 05:00:30,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:30,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:00:30,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:30,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:00:30,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:00:30,746 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:00:30,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:30,802 INFO L93 Difference]: Finished difference Result 76 states and 95 transitions. [2024-11-28 05:00:30,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:00:30,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2024-11-28 05:00:30,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:30,805 INFO L225 Difference]: With dead ends: 76 [2024-11-28 05:00:30,805 INFO L226 Difference]: Without dead ends: 47 [2024-11-28 05:00:30,805 INFO L434 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 [2024-11-28 05:00:30,806 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 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 [2024-11-28 05:00:30,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:00:30,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-28 05:00:30,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-28 05:00:30,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 41 states have internal predecessors, (50), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 05:00:30,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 58 transitions. [2024-11-28 05:00:30,823 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 58 transitions. Word has length 22 [2024-11-28 05:00:30,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:30,823 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 58 transitions. [2024-11-28 05:00:30,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:00:30,823 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 58 transitions. [2024-11-28 05:00:30,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 05:00:30,824 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:30,824 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:30,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:00:30,824 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:30,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:30,825 INFO L85 PathProgramCache]: Analyzing trace with hash 33163303, now seen corresponding path program 1 times [2024-11-28 05:00:30,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:30,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024310246] [2024-11-28 05:00:30,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:30,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:31,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:31,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:31,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024310246] [2024-11-28 05:00:31,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024310246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:31,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:31,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:00:31,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045917100] [2024-11-28 05:00:31,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:31,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:00:31,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:31,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:00:31,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:00:31,269 INFO L87 Difference]: Start difference. First operand 47 states and 58 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:00:31,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:31,414 INFO L93 Difference]: Finished difference Result 89 states and 111 transitions. [2024-11-28 05:00:31,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:00:31,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-11-28 05:00:31,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:31,417 INFO L225 Difference]: With dead ends: 89 [2024-11-28 05:00:31,417 INFO L226 Difference]: Without dead ends: 58 [2024-11-28 05:00:31,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:00:31,418 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 54 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:31,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 148 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:00:31,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-28 05:00:31,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 49. [2024-11-28 05:00:31,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 42 states have internal predecessors, (52), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 05:00:31,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2024-11-28 05:00:31,433 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 23 [2024-11-28 05:00:31,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:31,433 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2024-11-28 05:00:31,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:00:31,433 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2024-11-28 05:00:31,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-28 05:00:31,434 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:31,435 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:31,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:00:31,436 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:31,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:31,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1667006976, now seen corresponding path program 1 times [2024-11-28 05:00:31,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:31,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368634536] [2024-11-28 05:00:31,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:31,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:31,927 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:00:31,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:31,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368634536] [2024-11-28 05:00:31,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368634536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:00:31,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102662395] [2024-11-28 05:00:31,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:31,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:31,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:31,933 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:31,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:00:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:32,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-28 05:00:32,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:32,323 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 05:00:32,324 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:00:32,856 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 05:00:32,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102662395] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:00:32,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:00:32,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13, 13] total 23 [2024-11-28 05:00:32,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289805097] [2024-11-28 05:00:32,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:00:32,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 05:00:32,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:32,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 05:00:32,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=417, Unknown=0, NotChecked=0, Total=506 [2024-11-28 05:00:32,860 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand has 23 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 22 states have internal predecessors, (51), 7 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 05:00:33,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:33,278 INFO L93 Difference]: Finished difference Result 88 states and 110 transitions. [2024-11-28 05:00:33,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 05:00:33,278 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 22 states have internal predecessors, (51), 7 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 4 states have call successors, (5) Word has length 30 [2024-11-28 05:00:33,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:33,279 INFO L225 Difference]: With dead ends: 88 [2024-11-28 05:00:33,280 INFO L226 Difference]: Without dead ends: 86 [2024-11-28 05:00:33,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=210, Invalid=782, Unknown=0, NotChecked=0, Total=992 [2024-11-28 05:00:33,281 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 334 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:33,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 342 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:00:33,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-28 05:00:33,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 56. [2024-11-28 05:00:33,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.2391304347826086) internal successors, (57), 48 states have internal predecessors, (57), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 05:00:33,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2024-11-28 05:00:33,298 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 30 [2024-11-28 05:00:33,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:33,298 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2024-11-28 05:00:33,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 22 states have internal predecessors, (51), 7 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 05:00:33,299 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2024-11-28 05:00:33,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 05:00:33,299 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:33,299 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:33,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 05:00:33,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:33,500 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:33,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:33,501 INFO L85 PathProgramCache]: Analyzing trace with hash 86460636, now seen corresponding path program 1 times [2024-11-28 05:00:33,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:33,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133241503] [2024-11-28 05:00:33,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:33,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:33,784 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:00:33,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:33,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133241503] [2024-11-28 05:00:33,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133241503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:33,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:33,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:00:33,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155538092] [2024-11-28 05:00:33,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:33,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:00:33,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:33,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:00:33,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:00:33,786 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:00:33,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:33,921 INFO L93 Difference]: Finished difference Result 104 states and 125 transitions. [2024-11-28 05:00:33,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:00:33,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2024-11-28 05:00:33,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:33,924 INFO L225 Difference]: With dead ends: 104 [2024-11-28 05:00:33,924 INFO L226 Difference]: Without dead ends: 66 [2024-11-28 05:00:33,924 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:00:33,925 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 36 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:33,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 74 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:00:33,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-28 05:00:33,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 63. [2024-11-28 05:00:33,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 52 states have (on average 1.2307692307692308) internal successors, (64), 54 states have internal predecessors, (64), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 05:00:33,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 76 transitions. [2024-11-28 05:00:33,945 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 76 transitions. Word has length 31 [2024-11-28 05:00:33,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:33,945 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 76 transitions. [2024-11-28 05:00:33,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:00:33,947 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 76 transitions. [2024-11-28 05:00:33,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 05:00:33,948 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:33,948 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:33,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:00:33,948 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:33,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:33,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1271892803, now seen corresponding path program 1 times [2024-11-28 05:00:33,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:33,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626328341] [2024-11-28 05:00:33,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:33,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:34,661 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:00:34,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:34,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626328341] [2024-11-28 05:00:34,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626328341] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:00:34,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088068655] [2024-11-28 05:00:34,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:34,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:34,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:34,664 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:34,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:00:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:34,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-28 05:00:34,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:35,346 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 05:00:35,346 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:00:36,466 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 05:00:36,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088068655] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:00:36,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:00:36,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 16] total 33 [2024-11-28 05:00:36,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064348870] [2024-11-28 05:00:36,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:00:36,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-28 05:00:36,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:36,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-28 05:00:36,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=927, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 05:00:36,469 INFO L87 Difference]: Start difference. First operand 63 states and 76 transitions. Second operand has 33 states, 28 states have (on average 2.2857142857142856) internal successors, (64), 32 states have internal predecessors, (64), 8 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 05:00:37,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:37,614 INFO L93 Difference]: Finished difference Result 151 states and 189 transitions. [2024-11-28 05:00:37,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 05:00:37,615 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 28 states have (on average 2.2857142857142856) internal successors, (64), 32 states have internal predecessors, (64), 8 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Word has length 32 [2024-11-28 05:00:37,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:37,616 INFO L225 Difference]: With dead ends: 151 [2024-11-28 05:00:37,616 INFO L226 Difference]: Without dead ends: 113 [2024-11-28 05:00:37,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=349, Invalid=1721, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 05:00:37,622 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 342 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:37,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 333 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:00:37,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-28 05:00:37,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 92. [2024-11-28 05:00:37,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 76 states have (on average 1.2105263157894737) internal successors, (92), 80 states have internal predecessors, (92), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 05:00:37,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 112 transitions. [2024-11-28 05:00:37,649 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 112 transitions. Word has length 32 [2024-11-28 05:00:37,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:37,650 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 112 transitions. [2024-11-28 05:00:37,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 28 states have (on average 2.2857142857142856) internal successors, (64), 32 states have internal predecessors, (64), 8 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 05:00:37,650 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 112 transitions. [2024-11-28 05:00:37,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 05:00:37,651 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:37,651 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:37,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:00:37,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:37,856 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:37,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:37,856 INFO L85 PathProgramCache]: Analyzing trace with hash -20424086, now seen corresponding path program 1 times [2024-11-28 05:00:37,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:37,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691481011] [2024-11-28 05:00:37,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:37,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:38,442 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 05:00:38,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:38,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691481011] [2024-11-28 05:00:38,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691481011] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:00:38,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126848344] [2024-11-28 05:00:38,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:38,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:38,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:38,445 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:38,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:00:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:38,600 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 70 conjuncts are in the unsatisfiable core [2024-11-28 05:00:38,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:39,102 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 05:00:39,103 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:00:39,968 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 05:00:39,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126848344] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:00:39,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:00:39,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 15] total 32 [2024-11-28 05:00:39,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778834741] [2024-11-28 05:00:39,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:00:39,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-28 05:00:39,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:39,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-28 05:00:39,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=861, Unknown=0, NotChecked=0, Total=992 [2024-11-28 05:00:39,971 INFO L87 Difference]: Start difference. First operand 92 states and 112 transitions. Second operand has 32 states, 31 states have (on average 2.5806451612903225) internal successors, (80), 32 states have internal predecessors, (80), 10 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 05:00:41,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:41,299 INFO L93 Difference]: Finished difference Result 160 states and 194 transitions. [2024-11-28 05:00:41,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 05:00:41,300 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.5806451612903225) internal successors, (80), 32 states have internal predecessors, (80), 10 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 44 [2024-11-28 05:00:41,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:41,301 INFO L225 Difference]: With dead ends: 160 [2024-11-28 05:00:41,301 INFO L226 Difference]: Without dead ends: 97 [2024-11-28 05:00:41,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 651 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=472, Invalid=2390, Unknown=0, NotChecked=0, Total=2862 [2024-11-28 05:00:41,304 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 167 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:41,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 365 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:00:41,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-28 05:00:41,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 86. [2024-11-28 05:00:41,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 71 states have (on average 1.1690140845070423) internal successors, (83), 73 states have internal predecessors, (83), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 05:00:41,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 101 transitions. [2024-11-28 05:00:41,316 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 101 transitions. Word has length 44 [2024-11-28 05:00:41,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:41,317 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 101 transitions. [2024-11-28 05:00:41,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.5806451612903225) internal successors, (80), 32 states have internal predecessors, (80), 10 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 05:00:41,317 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 101 transitions. [2024-11-28 05:00:41,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 05:00:41,319 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:41,319 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:41,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:00:41,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-28 05:00:41,520 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:00:41,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:41,522 INFO L85 PathProgramCache]: Analyzing trace with hash 663257276, now seen corresponding path program 1 times [2024-11-28 05:00:41,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:00:41,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872101617] [2024-11-28 05:00:41,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:41,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:00:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:42,782 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 20 proven. 35 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 05:00:42,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:00:42,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872101617] [2024-11-28 05:00:42,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872101617] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:00:42,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826178382] [2024-11-28 05:00:42,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:42,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:42,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:42,788 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:42,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:00:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:42,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 121 conjuncts are in the unsatisfiable core [2024-11-28 05:00:42,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:45,009 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 29 proven. 53 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-28 05:00:45,009 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:00:59,842 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 29 proven. 53 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-28 05:00:59,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826178382] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:00:59,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:00:59,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 19, 25] total 52 [2024-11-28 05:00:59,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011700532] [2024-11-28 05:00:59,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:00:59,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-28 05:00:59,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:00:59,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-28 05:00:59,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=426, Invalid=2226, Unknown=0, NotChecked=0, Total=2652 [2024-11-28 05:00:59,847 INFO L87 Difference]: Start difference. First operand 86 states and 101 transitions. Second operand has 52 states, 46 states have (on average 2.652173913043478) internal successors, (122), 51 states have internal predecessors, (122), 17 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 13 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-28 05:01:02,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:01:02,564 INFO L93 Difference]: Finished difference Result 197 states and 242 transitions. [2024-11-28 05:01:02,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-28 05:01:02,565 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 46 states have (on average 2.652173913043478) internal successors, (122), 51 states have internal predecessors, (122), 17 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 13 states have call predecessors, (18), 16 states have call successors, (18) Word has length 73 [2024-11-28 05:01:02,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:01:02,567 INFO L225 Difference]: With dead ends: 197 [2024-11-28 05:01:02,567 INFO L226 Difference]: Without dead ends: 140 [2024-11-28 05:01:02,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1744 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=962, Invalid=4440, Unknown=0, NotChecked=0, Total=5402 [2024-11-28 05:01:02,569 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 225 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:01:02,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 281 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:01:02,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-28 05:01:02,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 135. [2024-11-28 05:01:02,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 113 states have (on average 1.1858407079646018) internal successors, (134), 117 states have internal predecessors, (134), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 05:01:02,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 166 transitions. [2024-11-28 05:01:02,603 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 166 transitions. Word has length 73 [2024-11-28 05:01:02,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:01:02,603 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 166 transitions. [2024-11-28 05:01:02,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 46 states have (on average 2.652173913043478) internal successors, (122), 51 states have internal predecessors, (122), 17 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 13 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-28 05:01:02,603 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 166 transitions. [2024-11-28 05:01:02,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 05:01:02,604 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:01:02,605 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:01:02,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 05:01:02,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-28 05:01:02,805 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:01:02,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:01:02,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1972719459, now seen corresponding path program 2 times [2024-11-28 05:01:02,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:01:02,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761861542] [2024-11-28 05:01:02,806 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:01:02,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:01:02,909 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:01:02,909 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:01:04,323 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 05:01:04,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:01:04,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761861542] [2024-11-28 05:01:04,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761861542] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:01:04,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884831300] [2024-11-28 05:01:04,324 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:01:04,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:01:04,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:01:04,326 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:01:04,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:01:04,511 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:01:04,511 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:01:04,514 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 110 conjuncts are in the unsatisfiable core [2024-11-28 05:01:04,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:01:06,999 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 19 proven. 62 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 05:01:06,999 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:01:25,815 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 19 proven. 62 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 05:01:25,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884831300] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:01:25,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:01:25,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 24, 28] total 61 [2024-11-28 05:01:25,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524009242] [2024-11-28 05:01:25,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:01:25,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-11-28 05:01:25,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:01:25,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-11-28 05:01:25,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=547, Invalid=3113, Unknown=0, NotChecked=0, Total=3660 [2024-11-28 05:01:25,818 INFO L87 Difference]: Start difference. First operand 135 states and 166 transitions. Second operand has 61 states, 54 states have (on average 2.425925925925926) internal successors, (131), 59 states have internal predecessors, (131), 17 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 12 states have call predecessors, (18), 14 states have call successors, (18) [2024-11-28 05:01:30,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:01:30,899 INFO L93 Difference]: Finished difference Result 165 states and 203 transitions. [2024-11-28 05:01:30,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-28 05:01:30,900 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 54 states have (on average 2.425925925925926) internal successors, (131), 59 states have internal predecessors, (131), 17 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 12 states have call predecessors, (18), 14 states have call successors, (18) Word has length 74 [2024-11-28 05:01:30,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:01:30,902 INFO L225 Difference]: With dead ends: 165 [2024-11-28 05:01:30,902 INFO L226 Difference]: Without dead ends: 163 [2024-11-28 05:01:30,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 105 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2662 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=1651, Invalid=6539, Unknown=0, NotChecked=0, Total=8190 [2024-11-28 05:01:30,905 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 445 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:01:30,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 367 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 05:01:30,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-28 05:01:30,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 142. [2024-11-28 05:01:30,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 118 states have (on average 1.1779661016949152) internal successors, (139), 123 states have internal predecessors, (139), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 05:01:30,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 173 transitions. [2024-11-28 05:01:30,931 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 173 transitions. Word has length 74 [2024-11-28 05:01:30,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:01:30,931 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 173 transitions. [2024-11-28 05:01:30,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 54 states have (on average 2.425925925925926) internal successors, (131), 59 states have internal predecessors, (131), 17 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 12 states have call predecessors, (18), 14 states have call successors, (18) [2024-11-28 05:01:30,932 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 173 transitions. [2024-11-28 05:01:30,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 05:01:30,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:01:30,934 INFO L218 NwaCegarLoop]: trace histogram [8, 7, 7, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:01:30,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 05:01:31,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:01:31,138 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:01:31,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:01:31,138 INFO L85 PathProgramCache]: Analyzing trace with hash -899092854, now seen corresponding path program 2 times [2024-11-28 05:01:31,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:01:31,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201159689] [2024-11-28 05:01:31,139 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:01:31,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:01:31,282 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:01:31,282 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 05:01:31,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1442123248] [2024-11-28 05:01:31,288 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:01:31,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:01:31,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:01:31,290 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:01:31,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 05:01:32,032 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:01:32,032 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:01:32,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 106 conjuncts are in the unsatisfiable core [2024-11-28 05:01:32,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:01:35,624 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 38 proven. 57 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-28 05:01:35,624 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:01:58,184 WARN L286 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 05:02:35,084 WARN L286 SmtUtils]: Spent 20.06s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 05:03:39,681 WARN L286 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 05:03:48,134 WARN L286 SmtUtils]: Spent 5.65s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 05:03:48,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:03:48,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201159689] [2024-11-28 05:03:48,391 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:03:48,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442123248] [2024-11-28 05:03:48,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442123248] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:03:48,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:03:48,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-28 05:03:48,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449519443] [2024-11-28 05:03:48,392 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 05:03:48,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 05:03:48,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:03:48,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 05:03:48,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=763, Unknown=6, NotChecked=0, Total=930 [2024-11-28 05:03:48,393 INFO L87 Difference]: Start difference. First operand 142 states and 173 transitions. Second operand has 18 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 18 states have internal predecessors, (56), 6 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-28 05:04:00,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:00,214 INFO L93 Difference]: Finished difference Result 301 states and 368 transitions. [2024-11-28 05:04:00,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 05:04:00,215 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 18 states have internal predecessors, (56), 6 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 5 states have call successors, (7) Word has length 86 [2024-11-28 05:04:00,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:00,217 INFO L225 Difference]: With dead ends: 301 [2024-11-28 05:04:00,217 INFO L226 Difference]: Without dead ends: 188 [2024-11-28 05:04:00,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 70.0s TimeCoverageRelationStatistics Valid=407, Invalid=1566, Unknown=7, NotChecked=0, Total=1980 [2024-11-28 05:04:00,219 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 102 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:00,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 90 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 05:04:00,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-28 05:04:00,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 171. [2024-11-28 05:04:00,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 143 states have (on average 1.1538461538461537) internal successors, (165), 147 states have internal predecessors, (165), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 17 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 05:04:00,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 207 transitions. [2024-11-28 05:04:00,246 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 207 transitions. Word has length 86 [2024-11-28 05:04:00,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:00,246 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 207 transitions. [2024-11-28 05:04:00,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 18 states have internal predecessors, (56), 6 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-28 05:04:00,247 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 207 transitions. [2024-11-28 05:04:00,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 05:04:00,248 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:00,248 INFO L218 NwaCegarLoop]: trace histogram [8, 7, 7, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:00,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 05:04:00,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:00,453 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:00,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:00,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1840981953, now seen corresponding path program 1 times [2024-11-28 05:04:00,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:04:00,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273833188] [2024-11-28 05:04:00,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:00,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:04:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 05:04:00,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1749019654] [2024-11-28 05:04:00,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:00,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:00,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:00,587 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:04:00,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 05:04:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:04:00,902 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:04:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:04:01,160 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 05:04:01,160 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 05:04:01,161 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 05:04:01,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 05:04:01,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 05:04:01,367 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:01,439 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 05:04:01,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:04:01 BoogieIcfgContainer [2024-11-28 05:04:01,445 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 05:04:01,445 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:04:01,445 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:04:01,446 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:04:01,448 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:00:28" (3/4) ... [2024-11-28 05:04:01,450 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 05:04:01,451 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:04:01,452 INFO L158 Benchmark]: Toolchain (without parser) took 213571.12ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 92.6MB in the beginning and 136.1MB in the end (delta: -43.5MB). Peak memory consumption was 183.2MB. Max. memory is 16.1GB. [2024-11-28 05:04:01,453 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:04:01,453 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.90ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 80.6MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:04:01,454 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.78ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 77.9MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:04:01,454 INFO L158 Benchmark]: Boogie Preprocessor took 74.37ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 76.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:04:01,455 INFO L158 Benchmark]: RCFGBuilder took 618.42ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 58.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 05:04:01,455 INFO L158 Benchmark]: TraceAbstraction took 212518.14ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 57.7MB in the beginning and 136.1MB in the end (delta: -78.4MB). Peak memory consumption was 149.6MB. Max. memory is 16.1GB. [2024-11-28 05:04:01,456 INFO L158 Benchmark]: Witness Printer took 6.23ms. Allocated memory is still 343.9MB. Free memory was 136.1MB in the beginning and 136.1MB in the end (delta: 69.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:04:01,458 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.90ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 80.6MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.78ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 77.9MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.37ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 76.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 618.42ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 58.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 212518.14ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 57.7MB in the beginning and 136.1MB in the end (delta: -78.4MB). Peak memory consumption was 149.6MB. Max. memory is 16.1GB. * Witness Printer took 6.23ms. Allocated memory is still 343.9MB. Free memory was 136.1MB in the beginning and 136.1MB in the end (delta: 69.3kB). 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: 29]: 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 76, overapproximation of bitwiseAnd at line 68. Possible FailurePath: [L34] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 4); [L35] const SORT_1 msb_SORT_1 = (SORT_1)1 << (4 - 1); [L37] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 1); [L38] const SORT_12 msb_SORT_12 = (SORT_12)1 << (1 - 1); [L40] const SORT_1 var_2 = 1; [L41] const SORT_1 var_11 = mask_SORT_1; [L42] const SORT_1 var_16 = 3; [L45] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_12=1, mask_SORT_1=15, var_11=15, var_16=3, var_2=1] [L45] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L46] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_12=1, mask_SORT_1=15, var_11=15, var_16=3, var_2=1] [L46] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L48] SORT_1 init_5_arg_1 = var_2; [L49] state_3 = init_5_arg_1 [L50] SORT_1 init_6_arg_1 = var_2; [L51] state_4 = init_6_arg_1 VAL [mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=1, var_11=15, var_16=3, var_2=1] [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=1, var_11=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=1, var_11=15, var_16=3, var_2=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=1, var_11=15, var_16=3, var_18_arg_0=0, var_18_arg_1=1, var_2=1] [L68] EXPR var_18_arg_0 & var_18_arg_1 VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=1, var_11=15, var_16=3, var_2=1] [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] EXPR var_18 & mask_SORT_12 VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=1, var_11=15, var_16=3, var_2=1] [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=1, var_11=15, var_16=3, var_2=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=1, var_11=15, var_16=3, var_2=1] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=1, var_11=15, var_16=3, var_2=1, var_7=2] [L76] EXPR var_7 & mask_SORT_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=1, var_11=15, var_16=3, var_2=1] [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=2, var_11=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=2, var_11=15, var_16=3, var_2=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=2, var_11=15, var_16=3, var_18_arg_0=0, var_18_arg_1=1, var_2=1] [L68] EXPR var_18_arg_0 & var_18_arg_1 VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=2, var_11=15, var_16=3, var_2=1] [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] EXPR var_18 & mask_SORT_12 VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=2, var_11=15, var_16=3, var_2=1] [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=2, var_11=15, var_16=3, var_2=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=2, var_11=15, var_16=3, var_2=1] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=2, var_11=15, var_16=3, var_2=1, var_7=3] [L76] EXPR var_7 & mask_SORT_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=2, var_11=15, var_16=3, var_2=1] [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=2, state_4=3, var_11=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=2, state_4=3, var_11=15, var_16=3, var_2=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=2, state_4=3, var_11=15, var_16=3, var_18_arg_0=0, var_18_arg_1=2, var_2=1] [L68] EXPR var_18_arg_0 & var_18_arg_1 VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=2, state_4=3, var_11=15, var_16=3, var_2=1] [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] EXPR var_18 & mask_SORT_12 VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=2, state_4=3, var_11=15, var_16=3, var_2=1] [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=2, state_4=3, var_11=15, var_16=3, var_2=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=2, state_4=3, var_11=15, var_16=3, var_2=1] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=2, state_4=3, var_11=15, var_16=3, var_2=1, var_7=4] [L76] EXPR var_7 & mask_SORT_1 VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=2, state_4=3, var_11=15, var_16=3, var_2=1] [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=6, state_4=4, var_11=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=6, state_4=4, var_11=15, var_16=3, var_2=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=6, state_4=4, var_11=15, var_16=3, var_18_arg_0=1, var_18_arg_1=6, var_2=1] [L68] EXPR var_18_arg_0 & var_18_arg_1 VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=6, state_4=4, var_11=15, var_16=3, var_2=1] [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] EXPR var_18 & mask_SORT_12 VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=6, state_4=4, var_11=15, var_16=3, var_2=1] [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=1, mask_SORT_12=1, mask_SORT_1=15, state_3=6, state_4=4, var_11=15, var_16=3, var_2=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=0] [L29] COND TRUE !(cond) VAL [\old(cond)=0] [L29] reach_error() VAL [\old(cond)=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 212.4s, OverallIterations: 12, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 23.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1834 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1807 mSDsluCounter, 2502 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2190 mSDsCounter, 232 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2686 IncrementalHoareTripleChecker+Invalid, 2918 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 232 mSolverCounterUnsat, 312 mSDtfsCounter, 2686 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 836 GetRequests, 475 SyntacticMatches, 6 SemanticMatches, 355 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6327 ImplicationChecksByTransitivity, 93.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=171occurred in iteration=11, InterpolantAutomatonStates: 187, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 137 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 184.2s InterpolantComputationTime, 960 NumberOfCodeBlocks, 960 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 932 ConstructedInterpolants, 32 QuantifiedInterpolants, 24175 SizeOfPredicates, 55 NumberOfNonLiveVariables, 1313 ConjunctsInSsa, 495 ConjunctsInUnsatCore, 21 InterpolantComputations, 5 PerfectInterpolantSequences, 600/1011 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 05:04:01,675 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-11-28 05:04:01,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB --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 a9bfc0bfd402f01a909df8198af653a6c40e8b771ded2d89ed782f9da2aa5bbb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:04:04,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:04:04,375 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-28 05:04:04,381 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:04:04,381 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:04:04,428 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:04:04,433 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:04:04,433 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:04:04,434 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:04:04,434 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:04:04,434 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:04:04,434 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:04:04,438 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:04:04,439 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:04:04,439 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:04:04,439 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:04:04,439 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:04:04,439 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:04:04,439 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:04:04,439 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:04:04,439 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:04:04,439 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 05:04:04,439 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 05:04:04,440 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 05:04:04,440 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:04:04,440 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:04:04,440 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:04:04,440 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:04:04,440 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:04:04,440 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:04:04,440 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:04:04,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:04:04,441 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:04:04,441 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:04:04,441 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:04:04,441 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:04:04,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:04:04,441 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:04:04,441 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:04:04,441 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:04:04,442 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:04:04,442 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 05:04:04,442 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 05:04:04,442 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:04:04,442 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:04:04,442 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:04:04,442 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:04:04,442 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB 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 -> a9bfc0bfd402f01a909df8198af653a6c40e8b771ded2d89ed782f9da2aa5bbb [2024-11-28 05:04:04,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:04:04,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:04:04,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:04:04,713 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:04:04,714 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:04:04,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2024-11-28 05:04:07,766 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/data/74ec5462a/8fa6f27fe0db4116b0f2384cae3c9d2c/FLAG2bae49ae6 [2024-11-28 05:04:08,122 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:04:08,125 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c [2024-11-28 05:04:08,165 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/data/74ec5462a/8fa6f27fe0db4116b0f2384cae3c9d2c/FLAG2bae49ae6 [2024-11-28 05:04:08,205 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/data/74ec5462a/8fa6f27fe0db4116b0f2384cae3c9d2c [2024-11-28 05:04:08,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:04:08,211 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:04:08,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:04:08,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:04:08,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:04:08,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:04:08" (1/1) ... [2024-11-28 05:04:08,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@390821ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:08, skipping insertion in model container [2024-11-28 05:04:08,225 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:04:08" (1/1) ... [2024-11-28 05:04:08,248 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:04:08,453 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_90ab820f-fa25-4d36-b66e-38a9932d5cab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1439,1452] [2024-11-28 05:04:08,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:04:08,521 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:04:08,534 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_90ab820f-fa25-4d36-b66e-38a9932d5cab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.factorial4even.c[1439,1452] [2024-11-28 05:04:08,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:04:08,592 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:04:08,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:08 WrapperNode [2024-11-28 05:04:08,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:04:08,594 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:04:08,594 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:04:08,595 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:04:08,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:08" (1/1) ... [2024-11-28 05:04:08,615 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:08" (1/1) ... [2024-11-28 05:04:08,645 INFO L138 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2024-11-28 05:04:08,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:04:08,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:04:08,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:04:08,647 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:04:08,654 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:08" (1/1) ... [2024-11-28 05:04:08,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:08" (1/1) ... [2024-11-28 05:04:08,657 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:08" (1/1) ... [2024-11-28 05:04:08,669 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]. [2024-11-28 05:04:08,669 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:08" (1/1) ... [2024-11-28 05:04:08,669 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:08" (1/1) ... [2024-11-28 05:04:08,680 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:08" (1/1) ... [2024-11-28 05:04:08,683 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:08" (1/1) ... [2024-11-28 05:04:08,687 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:08" (1/1) ... [2024-11-28 05:04:08,688 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:08" (1/1) ... [2024-11-28 05:04:08,689 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:08" (1/1) ... [2024-11-28 05:04:08,692 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:04:08,693 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:04:08,693 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:04:08,693 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:04:08,694 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:08" (1/1) ... [2024-11-28 05:04:08,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:04:08,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:08,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:04:08,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:04:08,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:04:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 05:04:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:04:08,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:04:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 05:04:08,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 05:04:08,861 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:04:08,863 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:04:09,112 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-28 05:04:09,113 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:04:09,129 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:04:09,130 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 05:04:09,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:04:09 BoogieIcfgContainer [2024-11-28 05:04:09,130 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:04:09,134 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:04:09,134 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:04:09,140 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:04:09,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:04:08" (1/3) ... [2024-11-28 05:04:09,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358c5107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:04:09, skipping insertion in model container [2024-11-28 05:04:09,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:08" (2/3) ... [2024-11-28 05:04:09,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358c5107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:04:09, skipping insertion in model container [2024-11-28 05:04:09,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:04:09" (3/3) ... [2024-11-28 05:04:09,145 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.factorial4even.c [2024-11-28 05:04:09,165 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:04:09,167 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.factorial4even.c that has 2 procedures, 16 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 05:04:09,236 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:04:09,257 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;@2b4c074e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:04:09,257 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:04:09,262 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 05:04:09,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-28 05:04:09,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:09,270 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:09,270 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:09,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:09,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1806430106, now seen corresponding path program 1 times [2024-11-28 05:04:09,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:04:09,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1474094323] [2024-11-28 05:04:09,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:09,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:09,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:09,298 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:04:09,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:04:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:09,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 05:04:09,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:09,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:04:09,708 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:04:09,709 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:04:09,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474094323] [2024-11-28 05:04:09,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474094323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:09,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:04:09,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:04:09,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820855768] [2024-11-28 05:04:09,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:09,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:04:09,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:04:09,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:04:09,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:04:09,763 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:04:09,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:09,933 INFO L93 Difference]: Finished difference Result 36 states and 48 transitions. [2024-11-28 05:04:09,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:04:09,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-28 05:04:09,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:09,945 INFO L225 Difference]: With dead ends: 36 [2024-11-28 05:04:09,945 INFO L226 Difference]: Without dead ends: 22 [2024-11-28 05:04:09,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:04:09,955 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:09,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 39 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:04:09,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-28 05:04:10,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2024-11-28 05:04:10,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 14 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 05:04:10,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2024-11-28 05:04:10,011 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 7 [2024-11-28 05:04:10,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:10,012 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2024-11-28 05:04:10,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:04:10,012 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2024-11-28 05:04:10,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-28 05:04:10,014 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:10,015 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:10,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:04:10,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:10,219 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:10,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:10,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1016645797, now seen corresponding path program 1 times [2024-11-28 05:04:10,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:04:10,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [161949177] [2024-11-28 05:04:10,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:10,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:10,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:10,223 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:04:10,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:04:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:10,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 05:04:10,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:10,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:04:10,569 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:04:10,807 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:04:10,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161949177] [2024-11-28 05:04:10,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161949177] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:04:10,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [983813960] [2024-11-28 05:04:10,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:10,808 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 05:04:10,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 05:04:10,813 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 05:04:10,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-28 05:04:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:10,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 05:04:10,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:11,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:04:11,090 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:04:11,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [983813960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:04:11,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:04:11,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 8 [2024-11-28 05:04:11,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397699587] [2024-11-28 05:04:11,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:04:11,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:04:11,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:04:11,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:04:11,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:04:11,097 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:04:11,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:11,204 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2024-11-28 05:04:11,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:04:11,205 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-11-28 05:04:11,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:11,206 INFO L225 Difference]: With dead ends: 28 [2024-11-28 05:04:11,207 INFO L226 Difference]: Without dead ends: 26 [2024-11-28 05:04:11,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:04:11,209 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:11,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 48 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:04:11,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-28 05:04:11,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2024-11-28 05:04:11,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 18 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 05:04:11,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2024-11-28 05:04:11,220 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 13 [2024-11-28 05:04:11,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:11,220 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2024-11-28 05:04:11,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:04:11,220 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2024-11-28 05:04:11,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-28 05:04:11,221 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:11,221 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:11,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:04:11,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-28 05:04:11,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 05:04:11,622 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:11,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:11,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1771069686, now seen corresponding path program 1 times [2024-11-28 05:04:11,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:04:11,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [947950477] [2024-11-28 05:04:11,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:11,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:11,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:11,630 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:04:11,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:04:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:11,703 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 05:04:11,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:11,979 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 05:04:11,979 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:04:12,150 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 05:04:12,151 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:04:12,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947950477] [2024-11-28 05:04:12,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947950477] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:04:12,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:04:12,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 12 [2024-11-28 05:04:12,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521528248] [2024-11-28 05:04:12,152 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:04:12,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 05:04:12,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:04:12,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 05:04:12,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:04:12,154 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 05:04:12,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:12,624 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2024-11-28 05:04:12,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 05:04:12,625 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 20 [2024-11-28 05:04:12,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:12,626 INFO L225 Difference]: With dead ends: 47 [2024-11-28 05:04:12,626 INFO L226 Difference]: Without dead ends: 45 [2024-11-28 05:04:12,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-28 05:04:12,628 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 14 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:12,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 55 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:04:12,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-28 05:04:12,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2024-11-28 05:04:12,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 29 states have internal predecessors, (29), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 05:04:12,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2024-11-28 05:04:12,654 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 20 [2024-11-28 05:04:12,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:12,655 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2024-11-28 05:04:12,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 05:04:12,655 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2024-11-28 05:04:12,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-28 05:04:12,656 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:12,656 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:12,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 05:04:12,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:12,857 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:12,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:12,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1764766647, now seen corresponding path program 2 times [2024-11-28 05:04:12,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:04:12,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1763515268] [2024-11-28 05:04:12,858 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:04:12,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:12,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:12,860 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:04:12,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:04:12,950 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:04:12,950 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:04:12,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 05:04:12,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:13,331 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 05:04:13,332 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:04:13,457 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:04:13,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763515268] [2024-11-28 05:04:13,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763515268] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:04:13,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1629330642] [2024-11-28 05:04:13,458 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:04:13,458 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 05:04:13,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 05:04:13,461 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 05:04:13,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-28 05:04:13,613 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:04:13,613 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:04:13,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 05:04:13,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:13,842 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 05:04:13,843 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:04:13,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1629330642] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:04:13,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:04:13,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 9 [2024-11-28 05:04:13,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627741973] [2024-11-28 05:04:13,949 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:04:13,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 05:04:13,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:04:13,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 05:04:13,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:04:13,951 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 05:04:14,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:14,202 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2024-11-28 05:04:14,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 05:04:14,204 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2024-11-28 05:04:14,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:14,206 INFO L225 Difference]: With dead ends: 48 [2024-11-28 05:04:14,207 INFO L226 Difference]: Without dead ends: 46 [2024-11-28 05:04:14,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:04:14,208 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 4 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:14,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 58 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:04:14,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-28 05:04:14,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-28 05:04:14,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 31 states have (on average 1.032258064516129) internal successors, (32), 32 states have internal predecessors, (32), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 05:04:14,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2024-11-28 05:04:14,225 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 26 [2024-11-28 05:04:14,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:14,225 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2024-11-28 05:04:14,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 05:04:14,225 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2024-11-28 05:04:14,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-28 05:04:14,226 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:14,226 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2024-11-28 05:04:14,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-28 05:04:14,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 05:04:14,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:14,631 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:14,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:14,631 INFO L85 PathProgramCache]: Analyzing trace with hash -426431269, now seen corresponding path program 3 times [2024-11-28 05:04:14,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:04:14,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1379679617] [2024-11-28 05:04:14,632 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:04:14,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:14,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:14,636 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:04:14,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 05:04:14,726 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 05:04:14,726 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:04:14,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 05:04:14,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:14,975 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 21 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 05:04:14,975 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:04:15,070 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:04:15,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379679617] [2024-11-28 05:04:15,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379679617] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:04:15,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1229200452] [2024-11-28 05:04:15,070 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:04:15,071 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 05:04:15,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 05:04:15,073 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 05:04:15,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-28 05:04:15,231 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 05:04:15,231 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:04:15,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 05:04:15,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:15,420 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 05:04:15,420 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:04:15,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1229200452] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:04:15,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:04:15,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 11 [2024-11-28 05:04:15,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440667938] [2024-11-28 05:04:15,478 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:04:15,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:04:15,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:04:15,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:04:15,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:04:15,481 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 05:04:15,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:15,918 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2024-11-28 05:04:15,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 05:04:15,918 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 39 [2024-11-28 05:04:15,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:15,919 INFO L225 Difference]: With dead ends: 52 [2024-11-28 05:04:15,919 INFO L226 Difference]: Without dead ends: 50 [2024-11-28 05:04:15,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 74 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-11-28 05:04:15,921 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 5 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:15,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 81 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:04:15,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-28 05:04:15,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-28 05:04:15,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 35 states have internal predecessors, (35), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 05:04:15,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2024-11-28 05:04:15,938 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 39 [2024-11-28 05:04:15,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:15,938 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2024-11-28 05:04:15,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 05:04:15,939 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2024-11-28 05:04:15,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-28 05:04:15,940 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:15,940 INFO L218 NwaCegarLoop]: trace histogram [9, 8, 8, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2024-11-28 05:04:15,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 05:04:16,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-28 05:04:16,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 05:04:16,345 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:16,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:16,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1443087718, now seen corresponding path program 4 times [2024-11-28 05:04:16,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:04:16,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1554454190] [2024-11-28 05:04:16,346 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 05:04:16,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:16,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:16,348 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:04:16,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 05:04:16,461 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 05:04:16,461 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:04:16,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 05:04:16,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:16,985 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 15 proven. 60 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-28 05:04:16,985 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:04:17,441 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 16 proven. 38 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-28 05:04:17,442 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:04:17,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554454190] [2024-11-28 05:04:17,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554454190] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:04:17,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:04:17,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 18 [2024-11-28 05:04:17,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183070005] [2024-11-28 05:04:17,443 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:04:17,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 05:04:17,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:04:17,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 05:04:17,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-11-28 05:04:17,445 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 9 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-11-28 05:04:18,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:18,654 INFO L93 Difference]: Finished difference Result 84 states and 97 transitions. [2024-11-28 05:04:18,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 05:04:18,655 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 9 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 59 [2024-11-28 05:04:18,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:18,658 INFO L225 Difference]: With dead ends: 84 [2024-11-28 05:04:18,658 INFO L226 Difference]: Without dead ends: 82 [2024-11-28 05:04:18,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=220, Invalid=772, Unknown=0, NotChecked=0, Total=992 [2024-11-28 05:04:18,661 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 26 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:18,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 154 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:04:18,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-28 05:04:18,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2024-11-28 05:04:18,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 52 states have (on average 1.0192307692307692) internal successors, (53), 53 states have internal predecessors, (53), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 05:04:18,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 91 transitions. [2024-11-28 05:04:18,711 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 91 transitions. Word has length 59 [2024-11-28 05:04:18,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:18,711 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 91 transitions. [2024-11-28 05:04:18,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 9 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-11-28 05:04:18,712 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 91 transitions. [2024-11-28 05:04:18,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 05:04:18,716 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:18,716 INFO L218 NwaCegarLoop]: trace histogram [19, 18, 18, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1] [2024-11-28 05:04:18,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 05:04:18,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:18,917 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:18,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:18,918 INFO L85 PathProgramCache]: Analyzing trace with hash -538768650, now seen corresponding path program 5 times [2024-11-28 05:04:18,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:04:18,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [442894698] [2024-11-28 05:04:18,919 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 05:04:18,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:18,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:18,923 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:04:18,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 05:04:19,192 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2024-11-28 05:04:19,192 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:04:19,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 05:04:19,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:20,261 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 41 proven. 244 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-28 05:04:20,261 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:04:21,529 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 36 proven. 198 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 05:04:21,529 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:04:21,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442894698] [2024-11-28 05:04:21,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442894698] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:04:21,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:04:21,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 28 [2024-11-28 05:04:21,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142040332] [2024-11-28 05:04:21,530 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:04:21,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 05:04:21,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:04:21,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 05:04:21,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=610, Unknown=0, NotChecked=0, Total=756 [2024-11-28 05:04:21,534 INFO L87 Difference]: Start difference. First operand 79 states and 91 transitions. Second operand has 28 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 27 states have internal predecessors, (70), 19 states have call successors, (38), 3 states have call predecessors, (38), 2 states have return successors, (36), 18 states have call predecessors, (36), 18 states have call successors, (36) [2024-11-28 05:04:24,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:24,905 INFO L93 Difference]: Finished difference Result 143 states and 177 transitions. [2024-11-28 05:04:24,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-28 05:04:24,905 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 27 states have internal predecessors, (70), 19 states have call successors, (38), 3 states have call predecessors, (38), 2 states have return successors, (36), 18 states have call predecessors, (36), 18 states have call successors, (36) Word has length 124 [2024-11-28 05:04:24,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:24,908 INFO L225 Difference]: With dead ends: 143 [2024-11-28 05:04:24,908 INFO L226 Difference]: Without dead ends: 141 [2024-11-28 05:04:24,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=736, Invalid=2686, Unknown=0, NotChecked=0, Total=3422 [2024-11-28 05:04:24,911 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 46 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:24,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 359 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 05:04:24,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-28 05:04:24,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 138. [2024-11-28 05:04:24,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 88 states have (on average 1.0113636363636365) internal successors, (89), 89 states have internal predecessors, (89), 41 states have call successors, (41), 8 states have call predecessors, (41), 8 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-28 05:04:24,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 171 transitions. [2024-11-28 05:04:24,971 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 171 transitions. Word has length 124 [2024-11-28 05:04:24,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:24,972 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 171 transitions. [2024-11-28 05:04:24,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 27 states have internal predecessors, (70), 19 states have call successors, (38), 3 states have call predecessors, (38), 2 states have return successors, (36), 18 states have call predecessors, (36), 18 states have call successors, (36) [2024-11-28 05:04:24,972 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 171 transitions. [2024-11-28 05:04:24,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-28 05:04:24,976 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:24,976 INFO L218 NwaCegarLoop]: trace histogram [29, 28, 28, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1] [2024-11-28 05:04:24,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 05:04:25,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:25,180 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:04:25,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:25,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1584080410, now seen corresponding path program 6 times [2024-11-28 05:04:25,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:04:25,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1432598542] [2024-11-28 05:04:25,181 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 05:04:25,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:25,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:25,183 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:04:25,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 05:04:25,478 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 22 check-sat command(s) [2024-11-28 05:04:25,478 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-28 05:04:25,478 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:04:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:04:25,682 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-28 05:04:25,683 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 05:04:25,684 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 05:04:25,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 05:04:25,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:25,889 INFO L422 BasicCegarLoop]: Path program histogram: [6, 1, 1] [2024-11-28 05:04:25,988 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 05:04:25,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:04:25 BoogieIcfgContainer [2024-11-28 05:04:25,994 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 05:04:25,995 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:04:25,996 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:04:25,996 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:04:25,997 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:04:09" (3/4) ... [2024-11-28 05:04:25,998 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 05:04:26,147 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 87. [2024-11-28 05:04:26,255 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 05:04:26,256 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 05:04:26,256 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:04:26,260 INFO L158 Benchmark]: Toolchain (without parser) took 18046.64ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 91.9MB in the beginning and 94.3MB in the end (delta: -2.4MB). Peak memory consumption was 131.9MB. Max. memory is 16.1GB. [2024-11-28 05:04:26,261 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:04:26,261 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.26ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 79.6MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:04:26,261 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.75ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 78.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:04:26,262 INFO L158 Benchmark]: Boogie Preprocessor took 45.70ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 76.9MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:04:26,262 INFO L158 Benchmark]: RCFGBuilder took 437.98ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 64.4MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:04:26,262 INFO L158 Benchmark]: TraceAbstraction took 16860.57ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 63.9MB in the beginning and 108.3MB in the end (delta: -44.4MB). Peak memory consumption was 89.9MB. Max. memory is 16.1GB. [2024-11-28 05:04:26,263 INFO L158 Benchmark]: Witness Printer took 261.13ms. Allocated memory is still 251.7MB. Free memory was 108.3MB in the beginning and 94.3MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 05:04:26,268 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.26ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 79.6MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.75ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 78.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.70ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 76.9MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 437.98ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 64.4MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 16860.57ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 63.9MB in the beginning and 108.3MB in the end (delta: -44.4MB). Peak memory consumption was 89.9MB. Max. memory is 16.1GB. * Witness Printer took 261.13ms. Allocated memory is still 251.7MB. Free memory was 108.3MB in the beginning and 94.3MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. 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 - CounterExampleResult [Line: 29]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L34] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 4); [L35] const SORT_1 msb_SORT_1 = (SORT_1)1 << (4 - 1); [L37] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 1); [L38] const SORT_12 msb_SORT_12 = (SORT_12)1 << (1 - 1); [L40] const SORT_1 var_2 = 1; [L41] const SORT_1 var_11 = mask_SORT_1; [L42] const SORT_1 var_16 = 3; [L45] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L46] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L48] SORT_1 init_5_arg_1 = var_2; [L49] state_3 = init_5_arg_1 [L50] SORT_1 init_6_arg_1 = var_2; [L51] state_4 = init_6_arg_1 VAL [mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=1, var_11=15, var_16=3, var_2=1] [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=1, var_11=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=1, var_11=15, var_16=3, var_2=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=1, var_11=15, var_16=3, var_2=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=1, var_11=15, var_16=3, var_2=1] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=2, var_11=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=2, var_11=15, var_16=3, var_2=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=2, var_11=15, var_16=3, var_2=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=1, state_4=2, var_11=15, var_16=3, var_2=1] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=2, state_4=3, var_11=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=2, state_4=3, var_11=15, var_16=3, var_2=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=2, state_4=3, var_11=15, var_16=3, var_2=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=2, state_4=3, var_11=15, var_16=3, var_2=1] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=6, state_4=4, var_11=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=6, state_4=4, var_11=15, var_16=3, var_2=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=6, state_4=4, var_11=15, var_16=3, var_2=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=6, state_4=4, var_11=15, var_16=3, var_2=1] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=24, state_4=5, var_11=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=24, state_4=5, var_11=15, var_16=3, var_2=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=24, state_4=5, var_11=15, var_16=3, var_2=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=24, state_4=5, var_11=15, var_16=3, var_2=1] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=120, state_4=6, var_11=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=120, state_4=6, var_11=15, var_16=3, var_2=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=120, state_4=6, var_11=15, var_16=3, var_2=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=120, state_4=6, var_11=15, var_16=3, var_2=1] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=-48, state_4=7, var_11=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=-48, state_4=7, var_11=15, var_16=3, var_2=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=-48, state_4=7, var_11=15, var_16=3, var_2=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=-48, state_4=7, var_11=15, var_16=3, var_2=1] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=-80, state_4=8, var_11=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=-80, state_4=8, var_11=15, var_16=3, var_2=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=-80, state_4=8, var_11=15, var_16=3, var_2=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=-80, state_4=8, var_11=15, var_16=3, var_2=1] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=-128, state_4=9, var_11=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=-128, state_4=9, var_11=15, var_16=3, var_2=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=-128, state_4=9, var_11=15, var_16=3, var_2=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=-128, state_4=9, var_11=15, var_16=3, var_2=1] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=-128, state_4=10, var_11=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=-128, state_4=10, var_11=15, var_16=3, var_2=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=-128, state_4=10, var_11=15, var_16=3, var_2=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=-128, state_4=10, var_11=15, var_16=3, var_2=1] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=0, state_4=11, var_11=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=0, state_4=11, var_11=15, var_16=3, var_2=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=0, state_4=11, var_11=15, var_16=3, var_2=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=0, state_4=11, var_11=15, var_16=3, var_2=1] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=0, state_4=12, var_11=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=0, state_4=12, var_11=15, var_16=3, var_2=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=0, state_4=12, var_11=15, var_16=3, var_2=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=0, state_4=12, var_11=15, var_16=3, var_2=1] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=0, state_4=13, var_11=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=0, state_4=13, var_11=15, var_16=3, var_2=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=0, state_4=13, var_11=15, var_16=3, var_2=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=0, state_4=13, var_11=15, var_16=3, var_2=1] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=0, state_4=14, var_11=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L60] RET __VERIFIER_assert(!(bad_14_arg_0)) VAL [bad_14_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=0, state_4=14, var_11=15, var_16=3, var_2=1] [L61] SORT_1 var_17_arg_0 = state_4; [L62] SORT_1 var_17_arg_1 = var_16; [L63] SORT_12 var_17 = var_17_arg_0 > var_17_arg_1; [L64] SORT_1 var_15_arg_0 = state_3; [L65] SORT_12 var_15 = var_15_arg_0 >> 0; [L66] SORT_12 var_18_arg_0 = var_17; [L67] SORT_12 var_18_arg_1 = var_15; [L68] SORT_12 var_18 = var_18_arg_0 & var_18_arg_1; [L69] var_18 = var_18 & mask_SORT_12 [L70] SORT_12 bad_19_arg_0 = var_18; VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=0, state_4=14, var_11=15, var_16=3, var_2=1] [L71] CALL __VERIFIER_assert(!(bad_19_arg_0)) VAL [\old(cond)=1] [L29] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L71] RET __VERIFIER_assert(!(bad_19_arg_0)) VAL [bad_14_arg_0=0, bad_19_arg_0=0, mask_SORT_12=1, mask_SORT_1=15, state_3=0, state_4=14, var_11=15, var_16=3, var_2=1] [L73] SORT_1 var_7_arg_0 = state_4; [L74] SORT_1 var_7_arg_1 = var_2; [L75] SORT_1 var_7 = var_7_arg_0 + var_7_arg_1; [L76] var_7 = var_7 & mask_SORT_1 [L77] SORT_1 next_9_arg_1 = var_7; [L78] SORT_1 var_8_arg_0 = state_3; [L79] SORT_1 var_8_arg_1 = state_4; [L80] SORT_1 var_8 = var_8_arg_0 * var_8_arg_1; [L81] SORT_1 next_10_arg_1 = var_8; [L83] state_4 = next_9_arg_1 [L84] state_3 = next_10_arg_1 [L56] SORT_1 var_13_arg_0 = state_4; [L57] SORT_1 var_13_arg_1 = var_11; [L58] SORT_12 var_13 = var_13_arg_0 == var_13_arg_1; [L59] SORT_12 bad_14_arg_0 = var_13; VAL [bad_14_arg_0=1, mask_SORT_12=1, mask_SORT_1=15, state_3=0, state_4=15, var_11=15, var_16=3, var_2=1] [L60] CALL __VERIFIER_assert(!(bad_14_arg_0)) VAL [\old(cond)=0] [L29] COND TRUE !(cond) VAL [\old(cond)=0] [L29] reach_error() VAL [\old(cond)=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.7s, OverallIterations: 8, TraceHistogramMax: 29, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 108 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 794 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 706 mSDsCounter, 129 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1514 IncrementalHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 129 mSolverCounterUnsat, 88 mSDtfsCounter, 1514 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 649 GetRequests, 498 SyntacticMatches, 4 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 842 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=7, InterpolantAutomatonStates: 122, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 13 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 555 NumberOfCodeBlocks, 543 NumberOfCodeBlocksAsserted, 53 NumberOfCheckSat, 556 ConstructedInterpolants, 17 QuantifiedInterpolants, 5292 SizeOfPredicates, 61 NumberOfNonLiveVariables, 974 ConjunctsInSsa, 168 ConjunctsInUnsatCore, 13 InterpolantComputations, 2 PerfectInterpolantSequences, 1627/2218 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-28 05:04:26,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ab820f-fa25-4d36-b66e-38a9932d5cab/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE