./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.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_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/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_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/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_5e1455c7-2f18-4635-8e9b-bf7044412303/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 45e58736dd2fb3c49049c2685505c5453ccebf8bd699ff36e792e3749e9ae2f9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:21:56,599 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:21:56,693 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-27 23:21:56,702 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:21:56,702 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:21:56,743 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:21:56,744 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:21:56,745 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:21:56,745 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:21:56,746 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:21:56,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:21:56,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:21:56,746 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:21:56,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:21:56,746 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:21:56,747 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:21:56,747 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:21:56,748 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:21:56,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:21:56,749 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:21:56,749 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:21:56,749 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:21:56,749 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:21:56,749 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:21:56,750 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:21:56,750 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:21:56,750 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:21:56,750 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:21:56,750 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:21:56,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:21:56,750 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:21:56,751 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:21:56,751 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:21:56,751 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:21:56,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:21:56,751 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:21:56,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:21:56,751 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:21:56,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:21:56,751 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:21:56,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:21:56,751 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:21:56,752 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:21:56,752 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:21:56,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:21:56,752 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_5e1455c7-2f18-4635-8e9b-bf7044412303/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 -> 45e58736dd2fb3c49049c2685505c5453ccebf8bd699ff36e792e3749e9ae2f9 [2024-11-27 23:21:57,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:21:57,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:21:57,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:21:57,094 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:21:57,095 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:21:57,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c [2024-11-27 23:22:00,105 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/data/95b16c93e/8c051c5eb39846f8a86ce5da4d3367f8/FLAG9865cf2e6 [2024-11-27 23:22:00,568 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:22:00,569 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c [2024-11-27 23:22:00,587 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/data/95b16c93e/8c051c5eb39846f8a86ce5da4d3367f8/FLAG9865cf2e6 [2024-11-27 23:22:00,602 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/data/95b16c93e/8c051c5eb39846f8a86ce5da4d3367f8 [2024-11-27 23:22:00,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:22:00,607 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:22:00,608 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:22:00,608 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:22:00,613 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:22:00,614 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:22:00" (1/1) ... [2024-11-27 23:22:00,615 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3190590d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:00, skipping insertion in model container [2024-11-27 23:22:00,615 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:22:00" (1/1) ... [2024-11-27 23:22:00,690 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:22:00,886 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_5e1455c7-2f18-4635-8e9b-bf7044412303/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c[1247,1260] [2024-11-27 23:22:01,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:22:01,404 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:22:01,414 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_5e1455c7-2f18-4635-8e9b-bf7044412303/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c[1247,1260] [2024-11-27 23:22:01,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:22:01,683 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:22:01,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:01 WrapperNode [2024-11-27 23:22:01,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:22:01,685 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:22:01,685 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:22:01,685 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:22:01,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:01" (1/1) ... [2024-11-27 23:22:01,773 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:01" (1/1) ... [2024-11-27 23:22:02,355 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5354 [2024-11-27 23:22:02,357 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:22:02,358 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:22:02,358 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:22:02,358 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:22:02,369 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:01" (1/1) ... [2024-11-27 23:22:02,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:01" (1/1) ... [2024-11-27 23:22:02,540 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:01" (1/1) ... [2024-11-27 23:22:02,665 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]. [2024-11-27 23:22:02,666 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:01" (1/1) ... [2024-11-27 23:22:02,666 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:01" (1/1) ... [2024-11-27 23:22:02,876 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:01" (1/1) ... [2024-11-27 23:22:02,890 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:01" (1/1) ... [2024-11-27 23:22:02,927 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:01" (1/1) ... [2024-11-27 23:22:02,966 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:01" (1/1) ... [2024-11-27 23:22:02,994 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:01" (1/1) ... [2024-11-27 23:22:03,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:22:03,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:22:03,111 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:22:03,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:22:03,113 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:01" (1/1) ... [2024-11-27 23:22:03,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:22:03,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:03,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:22:03,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:22:03,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:22:03,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:22:03,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:22:03,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:22:03,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 23:22:03,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 23:22:03,751 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:22:03,753 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:22:10,848 INFO L? ?]: Removed 3179 outVars from TransFormulas that were not future-live. [2024-11-27 23:22:10,848 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:22:10,912 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:22:10,912 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 23:22:10,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:22:10 BoogieIcfgContainer [2024-11-27 23:22:10,913 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:22:10,915 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:22:10,915 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:22:10,923 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:22:10,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:22:00" (1/3) ... [2024-11-27 23:22:10,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f98dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:22:10, skipping insertion in model container [2024-11-27 23:22:10,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:01" (2/3) ... [2024-11-27 23:22:10,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f98dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:22:10, skipping insertion in model container [2024-11-27 23:22:10,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:22:10" (3/3) ... [2024-11-27 23:22:10,926 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Vsa16.c [2024-11-27 23:22:10,944 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:22:10,946 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.h_Vsa16.c that has 2 procedures, 1429 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:22:11,065 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:22:11,078 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;@501f75ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:22:11,078 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:22:11,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 1429 states, 1422 states have (on average 1.4978902953586497) internal successors, (2130), 1423 states have internal predecessors, (2130), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:22:11,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-27 23:22:11,096 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:11,096 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:11,097 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:11,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:11,105 INFO L85 PathProgramCache]: Analyzing trace with hash -770988589, now seen corresponding path program 1 times [2024-11-27 23:22:11,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:11,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684803454] [2024-11-27 23:22:11,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:11,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:12,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:22:12,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:12,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684803454] [2024-11-27 23:22:12,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684803454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:12,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:12,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:22:12,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544083766] [2024-11-27 23:22:12,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:12,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:22:12,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:12,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:22:12,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:22:12,102 INFO L87 Difference]: Start difference. First operand has 1429 states, 1422 states have (on average 1.4978902953586497) internal successors, (2130), 1423 states have internal predecessors, (2130), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2024-11-27 23:22:12,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:12,547 INFO L93 Difference]: Finished difference Result 4151 states and 6225 transitions. [2024-11-27 23:22:12,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:22:12,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 43 [2024-11-27 23:22:12,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:12,588 INFO L225 Difference]: With dead ends: 4151 [2024-11-27 23:22:12,588 INFO L226 Difference]: Without dead ends: 2776 [2024-11-27 23:22:12,598 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 [2024-11-27 23:22:12,603 INFO L435 NwaCegarLoop]: 4024 mSDtfsCounter, 2012 mSDsluCounter, 14193 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2016 SdHoareTripleChecker+Valid, 18217 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:12,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2016 Valid, 18217 Invalid, 29 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:22:12,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2776 states. [2024-11-27 23:22:12,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2776 to 1432. [2024-11-27 23:22:12,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1424 states have (on average 1.4957865168539326) internal successors, (2130), 1425 states have internal predecessors, (2130), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 23:22:12,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2140 transitions. [2024-11-27 23:22:12,751 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2140 transitions. Word has length 43 [2024-11-27 23:22:12,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:12,752 INFO L471 AbstractCegarLoop]: Abstraction has 1432 states and 2140 transitions. [2024-11-27 23:22:12,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2024-11-27 23:22:12,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2140 transitions. [2024-11-27 23:22:12,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-27 23:22:12,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:12,756 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:12,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:22:12,757 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:12,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:12,758 INFO L85 PathProgramCache]: Analyzing trace with hash -536285326, now seen corresponding path program 1 times [2024-11-27 23:22:12,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:12,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616185993] [2024-11-27 23:22:12,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:12,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:13,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:22:13,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:13,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616185993] [2024-11-27 23:22:13,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616185993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:13,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:13,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:22:13,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844292184] [2024-11-27 23:22:13,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:13,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:22:13,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:13,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:22:13,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:22:13,138 INFO L87 Difference]: Start difference. First operand 1432 states and 2140 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2024-11-27 23:22:13,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:13,233 INFO L93 Difference]: Finished difference Result 2812 states and 4203 transitions. [2024-11-27 23:22:13,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:22:13,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 44 [2024-11-27 23:22:13,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:13,243 INFO L225 Difference]: With dead ends: 2812 [2024-11-27 23:22:13,243 INFO L226 Difference]: Without dead ends: 1434 [2024-11-27 23:22:13,246 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 [2024-11-27 23:22:13,248 INFO L435 NwaCegarLoop]: 2132 mSDtfsCounter, 0 mSDsluCounter, 4254 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6386 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 [2024-11-27 23:22:13,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6386 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:22:13,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2024-11-27 23:22:13,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1434. [2024-11-27 23:22:13,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1434 states, 1426 states have (on average 1.4950911640953717) internal successors, (2132), 1427 states have internal predecessors, (2132), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 23:22:13,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 2142 transitions. [2024-11-27 23:22:13,298 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 2142 transitions. Word has length 44 [2024-11-27 23:22:13,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:13,299 INFO L471 AbstractCegarLoop]: Abstraction has 1434 states and 2142 transitions. [2024-11-27 23:22:13,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2024-11-27 23:22:13,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 2142 transitions. [2024-11-27 23:22:13,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-27 23:22:13,302 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:13,303 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:13,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:22:13,303 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:13,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:13,304 INFO L85 PathProgramCache]: Analyzing trace with hash -2062776244, now seen corresponding path program 1 times [2024-11-27 23:22:13,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:13,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958118186] [2024-11-27 23:22:13,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:13,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:13,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:22:13,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:13,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958118186] [2024-11-27 23:22:13,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958118186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:13,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:13,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:22:13,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419246839] [2024-11-27 23:22:13,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:13,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:22:13,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:13,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:22:13,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:22:13,750 INFO L87 Difference]: Start difference. First operand 1434 states and 2142 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-11-27 23:22:13,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:13,918 INFO L93 Difference]: Finished difference Result 2818 states and 4210 transitions. [2024-11-27 23:22:13,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:22:13,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 45 [2024-11-27 23:22:13,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:13,927 INFO L225 Difference]: With dead ends: 2818 [2024-11-27 23:22:13,927 INFO L226 Difference]: Without dead ends: 1438 [2024-11-27 23:22:13,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:22:13,932 INFO L435 NwaCegarLoop]: 2125 mSDtfsCounter, 2092 mSDsluCounter, 4238 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2096 SdHoareTripleChecker+Valid, 6363 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:13,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2096 Valid, 6363 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:22:13,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2024-11-27 23:22:13,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1437. [2024-11-27 23:22:13,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 1429 states have (on average 1.4940517844646606) internal successors, (2135), 1430 states have internal predecessors, (2135), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 23:22:13,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 2145 transitions. [2024-11-27 23:22:13,978 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 2145 transitions. Word has length 45 [2024-11-27 23:22:13,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:13,978 INFO L471 AbstractCegarLoop]: Abstraction has 1437 states and 2145 transitions. [2024-11-27 23:22:13,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-11-27 23:22:13,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 2145 transitions. [2024-11-27 23:22:13,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-27 23:22:13,979 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:13,980 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:13,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:22:13,981 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:13,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:13,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1028216757, now seen corresponding path program 1 times [2024-11-27 23:22:13,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:13,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28659360] [2024-11-27 23:22:13,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:13,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:15,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:22:15,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:15,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28659360] [2024-11-27 23:22:15,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28659360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:15,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:15,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:22:15,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544650343] [2024-11-27 23:22:15,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:15,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:22:15,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:15,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:22:15,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:22:15,290 INFO L87 Difference]: Start difference. First operand 1437 states and 2145 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2024-11-27 23:22:15,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:15,560 INFO L93 Difference]: Finished difference Result 2829 states and 4223 transitions. [2024-11-27 23:22:15,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:22:15,561 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 46 [2024-11-27 23:22:15,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:15,568 INFO L225 Difference]: With dead ends: 2829 [2024-11-27 23:22:15,569 INFO L226 Difference]: Without dead ends: 1446 [2024-11-27 23:22:15,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:22:15,571 INFO L435 NwaCegarLoop]: 2120 mSDtfsCounter, 2103 mSDsluCounter, 8464 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2107 SdHoareTripleChecker+Valid, 10584 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:15,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2107 Valid, 10584 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:22:15,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2024-11-27 23:22:15,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1441. [2024-11-27 23:22:15,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1441 states, 1433 states have (on average 1.4933705512909978) internal successors, (2140), 1434 states have internal predecessors, (2140), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 23:22:15,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1441 states and 2150 transitions. [2024-11-27 23:22:15,618 INFO L78 Accepts]: Start accepts. Automaton has 1441 states and 2150 transitions. Word has length 46 [2024-11-27 23:22:15,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:15,618 INFO L471 AbstractCegarLoop]: Abstraction has 1441 states and 2150 transitions. [2024-11-27 23:22:15,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2024-11-27 23:22:15,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1441 states and 2150 transitions. [2024-11-27 23:22:15,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-27 23:22:15,624 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:15,624 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:15,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:22:15,624 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:15,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:15,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1994184327, now seen corresponding path program 1 times [2024-11-27 23:22:15,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:15,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419249160] [2024-11-27 23:22:15,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:15,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:16,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:22:16,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:16,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419249160] [2024-11-27 23:22:16,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419249160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:16,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:16,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:22:16,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363309544] [2024-11-27 23:22:16,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:16,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:22:16,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:16,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:22:16,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:22:16,200 INFO L87 Difference]: Start difference. First operand 1441 states and 2150 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2024-11-27 23:22:16,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:16,443 INFO L93 Difference]: Finished difference Result 2826 states and 4218 transitions. [2024-11-27 23:22:16,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:22:16,444 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 46 [2024-11-27 23:22:16,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:16,449 INFO L225 Difference]: With dead ends: 2826 [2024-11-27 23:22:16,449 INFO L226 Difference]: Without dead ends: 1439 [2024-11-27 23:22:16,451 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:22:16,452 INFO L435 NwaCegarLoop]: 2117 mSDtfsCounter, 2089 mSDsluCounter, 8433 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2093 SdHoareTripleChecker+Valid, 10550 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:16,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2093 Valid, 10550 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:22:16,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2024-11-27 23:22:16,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1436. [2024-11-27 23:22:16,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1428 states have (on average 1.4936974789915967) internal successors, (2133), 1429 states have internal predecessors, (2133), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 23:22:16,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2143 transitions. [2024-11-27 23:22:16,495 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2143 transitions. Word has length 46 [2024-11-27 23:22:16,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:16,496 INFO L471 AbstractCegarLoop]: Abstraction has 1436 states and 2143 transitions. [2024-11-27 23:22:16,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2024-11-27 23:22:16,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2143 transitions. [2024-11-27 23:22:16,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-27 23:22:16,498 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:16,498 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:16,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:22:16,499 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:16,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:16,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1409453055, now seen corresponding path program 1 times [2024-11-27 23:22:16,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:16,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487693779] [2024-11-27 23:22:16,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:16,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:16,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:22:16,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:16,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487693779] [2024-11-27 23:22:16,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487693779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:16,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:16,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:22:16,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54818077] [2024-11-27 23:22:16,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:16,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:22:16,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:16,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:22:16,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:22:16,847 INFO L87 Difference]: Start difference. First operand 1436 states and 2143 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-11-27 23:22:19,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:19,216 INFO L93 Difference]: Finished difference Result 4112 states and 6144 transitions. [2024-11-27 23:22:19,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:22:19,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 47 [2024-11-27 23:22:19,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:19,227 INFO L225 Difference]: With dead ends: 4112 [2024-11-27 23:22:19,227 INFO L226 Difference]: Without dead ends: 2730 [2024-11-27 23:22:19,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:22:19,231 INFO L435 NwaCegarLoop]: 1707 mSDtfsCounter, 1970 mSDsluCounter, 4979 mSDsCounter, 0 mSdLazyCounter, 1763 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1974 SdHoareTripleChecker+Valid, 6686 SdHoareTripleChecker+Invalid, 1764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:19,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1974 Valid, 6686 Invalid, 1764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1763 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-27 23:22:19,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2730 states. [2024-11-27 23:22:19,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2730 to 1444. [2024-11-27 23:22:19,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1436 states have (on average 1.4923398328690807) internal successors, (2143), 1437 states have internal predecessors, (2143), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 23:22:19,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 2153 transitions. [2024-11-27 23:22:19,288 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 2153 transitions. Word has length 47 [2024-11-27 23:22:19,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:19,288 INFO L471 AbstractCegarLoop]: Abstraction has 1444 states and 2153 transitions. [2024-11-27 23:22:19,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-11-27 23:22:19,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 2153 transitions. [2024-11-27 23:22:19,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-27 23:22:19,289 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:19,290 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:19,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:22:19,290 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:19,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:19,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1140401112, now seen corresponding path program 1 times [2024-11-27 23:22:19,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:19,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054043463] [2024-11-27 23:22:19,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:19,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:22:19,361 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:22:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:22:19,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 23:22:19,495 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 23:22:19,496 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 23:22:19,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:22:19,502 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:19,600 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:22:19,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:22:19 BoogieIcfgContainer [2024-11-27 23:22:19,604 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:22:19,604 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:22:19,605 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:22:19,605 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:22:19,606 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:22:10" (3/4) ... [2024-11-27 23:22:19,608 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 23:22:19,609 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:22:19,610 INFO L158 Benchmark]: Toolchain (without parser) took 19003.50ms. Allocated memory was 142.6MB in the beginning and 1.0GB in the end (delta: 889.2MB). Free memory was 115.7MB in the beginning and 267.0MB in the end (delta: -151.4MB). Peak memory consumption was 739.3MB. Max. memory is 16.1GB. [2024-11-27 23:22:19,610 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:22:19,611 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1076.42ms. Allocated memory is still 142.6MB. Free memory was 115.4MB in the beginning and 68.3MB in the end (delta: 47.1MB). Peak memory consumption was 75.2MB. Max. memory is 16.1GB. [2024-11-27 23:22:19,611 INFO L158 Benchmark]: Boogie Procedure Inliner took 672.21ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 68.3MB in the beginning and 292.0MB in the end (delta: -223.6MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2024-11-27 23:22:19,611 INFO L158 Benchmark]: Boogie Preprocessor took 752.96ms. Allocated memory is still 427.8MB. Free memory was 292.0MB in the beginning and 272.2MB in the end (delta: 19.7MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. [2024-11-27 23:22:19,612 INFO L158 Benchmark]: RCFGBuilder took 7801.43ms. Allocated memory was 427.8MB in the beginning and 1.0GB in the end (delta: 604.0MB). Free memory was 272.2MB in the beginning and 690.3MB in the end (delta: -418.1MB). Peak memory consumption was 625.5MB. Max. memory is 16.1GB. [2024-11-27 23:22:19,612 INFO L158 Benchmark]: TraceAbstraction took 8688.81ms. Allocated memory is still 1.0GB. Free memory was 690.3MB in the beginning and 267.1MB in the end (delta: 423.3MB). Peak memory consumption was 427.4MB. Max. memory is 16.1GB. [2024-11-27 23:22:19,612 INFO L158 Benchmark]: Witness Printer took 4.74ms. Allocated memory is still 1.0GB. Free memory was 267.1MB in the beginning and 267.0MB in the end (delta: 57.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:22:19,614 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1076.42ms. Allocated memory is still 142.6MB. Free memory was 115.4MB in the beginning and 68.3MB in the end (delta: 47.1MB). Peak memory consumption was 75.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 672.21ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 68.3MB in the beginning and 292.0MB in the end (delta: -223.6MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 752.96ms. Allocated memory is still 427.8MB. Free memory was 292.0MB in the beginning and 272.2MB in the end (delta: 19.7MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. * RCFGBuilder took 7801.43ms. Allocated memory was 427.8MB in the beginning and 1.0GB in the end (delta: 604.0MB). Free memory was 272.2MB in the beginning and 690.3MB in the end (delta: -418.1MB). Peak memory consumption was 625.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8688.81ms. Allocated memory is still 1.0GB. Free memory was 690.3MB in the beginning and 267.1MB in the end (delta: 423.3MB). Peak memory consumption was 427.4MB. Max. memory is 16.1GB. * Witness Printer took 4.74ms. Allocated memory is still 1.0GB. Free memory was 267.1MB in the beginning and 267.0MB in the end (delta: 57.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 344. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L32] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 12); [L33] const SORT_6 msb_SORT_6 = (SORT_6)1 << (12 - 1); [L35] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 32); [L36] const SORT_11 msb_SORT_11 = (SORT_11)1 << (32 - 1); [L38] const SORT_37 mask_SORT_37 = (SORT_37)-1 >> (sizeof(SORT_37) * 8 - 3); [L39] const SORT_37 msb_SORT_37 = (SORT_37)1 << (3 - 1); [L41] const SORT_44 mask_SORT_44 = (SORT_44)-1 >> (sizeof(SORT_44) * 8 - 2); [L42] const SORT_44 msb_SORT_44 = (SORT_44)1 << (2 - 1); [L44] const SORT_295 mask_SORT_295 = (SORT_295)-1 >> (sizeof(SORT_295) * 8 - 4); [L45] const SORT_295 msb_SORT_295 = (SORT_295)1 << (4 - 1); [L47] const SORT_297 mask_SORT_297 = (SORT_297)-1 >> (sizeof(SORT_297) * 8 - 5); [L48] const SORT_297 msb_SORT_297 = (SORT_297)1 << (5 - 1); [L50] const SORT_299 mask_SORT_299 = (SORT_299)-1 >> (sizeof(SORT_299) * 8 - 6); [L51] const SORT_299 msb_SORT_299 = (SORT_299)1 << (6 - 1); [L53] const SORT_301 mask_SORT_301 = (SORT_301)-1 >> (sizeof(SORT_301) * 8 - 7); [L54] const SORT_301 msb_SORT_301 = (SORT_301)1 << (7 - 1); [L56] const SORT_303 mask_SORT_303 = (SORT_303)-1 >> (sizeof(SORT_303) * 8 - 8); [L57] const SORT_303 msb_SORT_303 = (SORT_303)1 << (8 - 1); [L59] const SORT_305 mask_SORT_305 = (SORT_305)-1 >> (sizeof(SORT_305) * 8 - 9); [L60] const SORT_305 msb_SORT_305 = (SORT_305)1 << (9 - 1); [L62] const SORT_307 mask_SORT_307 = (SORT_307)-1 >> (sizeof(SORT_307) * 8 - 10); [L63] const SORT_307 msb_SORT_307 = (SORT_307)1 << (10 - 1); [L65] const SORT_309 mask_SORT_309 = (SORT_309)-1 >> (sizeof(SORT_309) * 8 - 11); [L66] const SORT_309 msb_SORT_309 = (SORT_309)1 << (11 - 1); [L68] const SORT_312 mask_SORT_312 = (SORT_312)-1 >> (sizeof(SORT_312) * 8 - 13); [L69] const SORT_312 msb_SORT_312 = (SORT_312)1 << (13 - 1); [L71] const SORT_314 mask_SORT_314 = (SORT_314)-1 >> (sizeof(SORT_314) * 8 - 14); [L72] const SORT_314 msb_SORT_314 = (SORT_314)1 << (14 - 1); [L74] const SORT_316 mask_SORT_316 = (SORT_316)-1 >> (sizeof(SORT_316) * 8 - 15); [L75] const SORT_316 msb_SORT_316 = (SORT_316)1 << (15 - 1); [L77] const SORT_533 mask_SORT_533 = (SORT_533)-1 >> (sizeof(SORT_533) * 8 - 17); [L78] const SORT_533 msb_SORT_533 = (SORT_533)1 << (17 - 1); [L80] const SORT_6 var_7 = 0; [L81] const SORT_11 var_13 = 0; [L82] const SORT_3 var_21 = 0; [L83] const SORT_1 var_26 = 0; [L84] const SORT_37 var_38 = 0; [L85] const SORT_1 var_57 = 1; [L86] const SORT_37 var_93 = 2; [L87] const SORT_37 var_97 = 1; [L88] const SORT_37 var_105 = 4; [L89] const SORT_37 var_107 = 5; [L90] const SORT_37 var_111 = 3; [L91] const SORT_6 var_128 = 2; [L92] const SORT_44 var_138 = 0; [L93] const SORT_3 var_145 = 65535; [L94] const SORT_297 var_534 = 0; [L95] const SORT_301 var_626 = 5; [L96] const SORT_301 var_630 = 4; [L97] const SORT_301 var_634 = 3; [L98] const SORT_301 var_638 = 2; [L99] const SORT_301 var_642 = 1; [L100] const SORT_301 var_646 = 0; [L102] SORT_1 input_2; [L103] SORT_3 input_4; [L104] SORT_3 input_5; [L105] SORT_6 input_114; [L106] SORT_6 input_115; [L107] SORT_6 input_116; [L108] SORT_3 input_134; [L109] SORT_3 input_135; [L110] SORT_3 input_136; [L111] SORT_3 input_144; [L112] SORT_3 input_153; [L113] SORT_3 input_154; [L114] SORT_3 input_155; [L115] SORT_3 input_158; [L116] SORT_3 input_176; [L117] SORT_3 input_177; [L118] SORT_3 input_178; [L119] SORT_3 input_181; [L120] SORT_3 input_183; [L121] SORT_44 input_197; [L122] SORT_44 input_198; [L123] SORT_44 input_199; [L124] SORT_3 input_529; [L125] SORT_3 input_530; [L126] SORT_3 input_531; [L127] SORT_3 input_532; [L128] SORT_3 input_555; [L129] SORT_3 input_557; [L130] SORT_3 input_559; [L131] SORT_3 input_563; [L132] SORT_3 input_564; [L133] SORT_3 input_565; [L134] SORT_3 input_566; [L135] SORT_3 input_585; [L136] SORT_3 input_589; [L137] SORT_3 input_591; [L138] SORT_3 input_598; [L139] SORT_3 input_600; [L140] SORT_3 input_605; [L141] SORT_3 input_607; [L142] SORT_3 input_611; [L143] SORT_3 input_612; [L144] SORT_3 input_613; [L145] SORT_3 input_614; [L146] SORT_3 input_615; [L147] SORT_3 input_616; [L148] SORT_3 input_617; [L149] SORT_3 input_618; [L150] SORT_3 input_619; [L151] SORT_3 input_620; [L152] SORT_3 input_621; [L153] SORT_3 input_622; [L154] SORT_3 input_629; [L155] SORT_3 input_633; [L156] SORT_3 input_637; [L157] SORT_3 input_641; [L158] SORT_3 input_645; [L159] SORT_3 input_650; [L160] SORT_3 input_656; [L161] SORT_3 input_658; [L162] SORT_3 input_660; [L163] SORT_3 input_662; [L164] SORT_3 input_665; [L165] SORT_3 input_671; [L166] SORT_3 input_673; [L167] SORT_3 input_675; [L168] SORT_3 input_678; [L169] SORT_3 input_684; [L170] SORT_3 input_686; [L171] SORT_3 input_689; [L172] SORT_3 input_695; [L173] SORT_3 input_698; [L174] SORT_3 input_705; [L175] SORT_3 input_710; [L176] SORT_1 input_729; [L177] SORT_1 input_730; [L178] SORT_1 input_731; [L179] SORT_1 input_732; [L180] SORT_1 input_735; [L181] SORT_1 input_737; [L182] SORT_1 input_739; [L183] SORT_1 input_744; [L184] SORT_1 input_746; [L185] SORT_1 input_751; [L186] SORT_3 input_764; [L187] SORT_3 input_765; [L188] SORT_3 input_766; [L190] EXPR __VERIFIER_nondet_ushort() & mask_SORT_6 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L190] SORT_6 state_8 = __VERIFIER_nondet_ushort() & mask_SORT_6; [L191] EXPR __VERIFIER_nondet_ushort() & mask_SORT_6 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L191] SORT_6 state_15 = __VERIFIER_nondet_ushort() & mask_SORT_6; [L192] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L192] SORT_3 state_22 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L193] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L193] SORT_3 state_24 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L194] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L194] SORT_3 state_28 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L195] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L195] SORT_3 state_30 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L196] EXPR __VERIFIER_nondet_uchar() & mask_SORT_37 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L196] SORT_37 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_37; [L197] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L197] SORT_3 state_80 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L198] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L198] SORT_3 state_82 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L199] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L199] SORT_3 state_84 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L200] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L200] SORT_1 state_86 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L201] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L201] SORT_3 state_88 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L202] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L202] SORT_3 state_90 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L204] SORT_6 init_9_arg_1 = var_7; [L205] state_8 = init_9_arg_1 [L206] SORT_6 init_16_arg_1 = var_7; [L207] state_15 = init_16_arg_1 [L208] SORT_3 init_23_arg_1 = var_21; [L209] state_22 = init_23_arg_1 [L210] SORT_3 init_25_arg_1 = var_21; [L211] state_24 = init_25_arg_1 [L212] SORT_3 init_29_arg_1 = var_21; [L213] state_28 = init_29_arg_1 [L214] SORT_3 init_31_arg_1 = var_21; [L215] state_30 = init_31_arg_1 [L216] SORT_37 init_40_arg_1 = var_38; [L217] state_39 = init_40_arg_1 [L218] SORT_3 init_81_arg_1 = var_21; [L219] state_80 = init_81_arg_1 [L220] SORT_3 init_83_arg_1 = var_21; [L221] state_82 = init_83_arg_1 [L222] SORT_3 init_85_arg_1 = var_21; [L223] state_84 = init_85_arg_1 [L224] SORT_1 init_87_arg_1 = var_26; [L225] state_86 = init_87_arg_1 [L226] SORT_3 init_89_arg_1 = var_21; [L227] state_88 = init_89_arg_1 [L228] SORT_3 init_91_arg_1 = var_21; [L229] state_90 = init_91_arg_1 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L232] input_2 = __VERIFIER_nondet_uchar() [L233] input_4 = __VERIFIER_nondet_ushort() [L234] input_5 = __VERIFIER_nondet_ushort() [L235] input_114 = __VERIFIER_nondet_ushort() [L236] input_115 = __VERIFIER_nondet_ushort() [L237] input_116 = __VERIFIER_nondet_ushort() [L238] input_134 = __VERIFIER_nondet_ushort() [L239] input_135 = __VERIFIER_nondet_ushort() [L240] input_136 = __VERIFIER_nondet_ushort() [L241] input_144 = __VERIFIER_nondet_ushort() [L242] input_153 = __VERIFIER_nondet_ushort() [L243] input_154 = __VERIFIER_nondet_ushort() [L244] input_155 = __VERIFIER_nondet_ushort() [L245] input_158 = __VERIFIER_nondet_ushort() [L246] input_176 = __VERIFIER_nondet_ushort() [L247] input_177 = __VERIFIER_nondet_ushort() [L248] input_178 = __VERIFIER_nondet_ushort() [L249] input_181 = __VERIFIER_nondet_ushort() [L250] input_183 = __VERIFIER_nondet_ushort() [L251] input_197 = __VERIFIER_nondet_uchar() [L252] input_198 = __VERIFIER_nondet_uchar() [L253] input_199 = __VERIFIER_nondet_uchar() [L254] input_529 = __VERIFIER_nondet_ushort() [L255] input_530 = __VERIFIER_nondet_ushort() [L256] input_531 = __VERIFIER_nondet_ushort() [L257] input_532 = __VERIFIER_nondet_ushort() [L258] input_555 = __VERIFIER_nondet_ushort() [L259] input_557 = __VERIFIER_nondet_ushort() [L260] input_559 = __VERIFIER_nondet_ushort() [L261] input_563 = __VERIFIER_nondet_ushort() [L262] input_564 = __VERIFIER_nondet_ushort() [L263] input_565 = __VERIFIER_nondet_ushort() [L264] input_566 = __VERIFIER_nondet_ushort() [L265] input_585 = __VERIFIER_nondet_ushort() [L266] input_589 = __VERIFIER_nondet_ushort() [L267] input_591 = __VERIFIER_nondet_ushort() [L268] input_598 = __VERIFIER_nondet_ushort() [L269] input_600 = __VERIFIER_nondet_ushort() [L270] input_605 = __VERIFIER_nondet_ushort() [L271] input_607 = __VERIFIER_nondet_ushort() [L272] input_611 = __VERIFIER_nondet_ushort() [L273] input_612 = __VERIFIER_nondet_ushort() [L274] input_613 = __VERIFIER_nondet_ushort() [L275] input_614 = __VERIFIER_nondet_ushort() [L276] input_615 = __VERIFIER_nondet_ushort() [L277] input_616 = __VERIFIER_nondet_ushort() [L278] input_617 = __VERIFIER_nondet_ushort() [L279] input_618 = __VERIFIER_nondet_ushort() [L280] input_619 = __VERIFIER_nondet_ushort() [L281] input_620 = __VERIFIER_nondet_ushort() [L282] input_621 = __VERIFIER_nondet_ushort() [L283] input_622 = __VERIFIER_nondet_ushort() [L284] input_629 = __VERIFIER_nondet_ushort() [L285] input_633 = __VERIFIER_nondet_ushort() [L286] input_637 = __VERIFIER_nondet_ushort() [L287] input_641 = __VERIFIER_nondet_ushort() [L288] input_645 = __VERIFIER_nondet_ushort() [L289] input_650 = __VERIFIER_nondet_ushort() [L290] input_656 = __VERIFIER_nondet_ushort() [L291] input_658 = __VERIFIER_nondet_ushort() [L292] input_660 = __VERIFIER_nondet_ushort() [L293] input_662 = __VERIFIER_nondet_ushort() [L294] input_665 = __VERIFIER_nondet_ushort() [L295] input_671 = __VERIFIER_nondet_ushort() [L296] input_673 = __VERIFIER_nondet_ushort() [L297] input_675 = __VERIFIER_nondet_ushort() [L298] input_678 = __VERIFIER_nondet_ushort() [L299] input_684 = __VERIFIER_nondet_ushort() [L300] input_686 = __VERIFIER_nondet_ushort() [L301] input_689 = __VERIFIER_nondet_ushort() [L302] input_695 = __VERIFIER_nondet_ushort() [L303] input_698 = __VERIFIER_nondet_ushort() [L304] input_705 = __VERIFIER_nondet_ushort() [L305] input_710 = __VERIFIER_nondet_ushort() [L306] input_729 = __VERIFIER_nondet_uchar() [L307] input_730 = __VERIFIER_nondet_uchar() [L308] input_731 = __VERIFIER_nondet_uchar() [L309] input_732 = __VERIFIER_nondet_uchar() [L310] input_735 = __VERIFIER_nondet_uchar() [L311] input_737 = __VERIFIER_nondet_uchar() [L312] input_739 = __VERIFIER_nondet_uchar() [L313] input_744 = __VERIFIER_nondet_uchar() [L314] input_746 = __VERIFIER_nondet_uchar() [L315] input_751 = __VERIFIER_nondet_uchar() [L316] input_764 = __VERIFIER_nondet_ushort() [L317] input_765 = __VERIFIER_nondet_ushort() [L318] input_766 = __VERIFIER_nondet_ushort() [L321] SORT_6 var_10_arg_0 = state_8; [L322] SORT_1 var_10 = var_10_arg_0 >> 0; [L323] SORT_1 var_52_arg_0 = var_10; VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_52_arg_0=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L324] EXPR var_52_arg_0 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L324] var_52_arg_0 = var_52_arg_0 & mask_SORT_1 [L325] SORT_11 var_52 = var_52_arg_0; [L326] SORT_11 var_53_arg_0 = var_52; [L327] SORT_11 var_53_arg_1 = var_13; [L328] SORT_1 var_53 = var_53_arg_0 == var_53_arg_1; [L329] SORT_6 var_17_arg_0 = state_15; [L330] SORT_1 var_17 = var_17_arg_0 >> 0; [L331] SORT_1 var_54_arg_0 = var_17; VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_21=0, var_26=0, var_38=0, var_534=0, var_53=1, var_54_arg_0=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L332] EXPR var_54_arg_0 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_21=0, var_26=0, var_38=0, var_534=0, var_53=1, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L332] var_54_arg_0 = var_54_arg_0 & mask_SORT_1 [L333] SORT_11 var_54 = var_54_arg_0; [L334] SORT_11 var_55_arg_0 = var_54; [L335] SORT_11 var_55_arg_1 = var_13; [L336] SORT_1 var_55 = var_55_arg_0 == var_55_arg_1; [L337] SORT_1 var_56_arg_0 = var_53; [L338] SORT_1 var_56_arg_1 = var_55; VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_21=0, var_26=0, var_38=0, var_534=0, var_56_arg_0=1, var_56_arg_1=1, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L339] EXPR var_56_arg_0 & var_56_arg_1 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L339] SORT_1 var_56 = var_56_arg_0 & var_56_arg_1; [L340] SORT_1 var_58_arg_0 = var_56; [L341] SORT_1 var_58 = ~var_58_arg_0; [L342] SORT_1 var_59_arg_0 = var_57; [L343] SORT_1 var_59_arg_1 = var_58; VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_59_arg_0=1, var_59_arg_1=-2, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L344] EXPR var_59_arg_0 & var_59_arg_1 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L344] SORT_1 var_59 = var_59_arg_0 & var_59_arg_1; [L345] EXPR var_59 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L345] var_59 = var_59 & mask_SORT_1 [L346] SORT_1 bad_60_arg_0 = var_59; VAL [bad_60_arg_0=1, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L347] CALL __VERIFIER_assert(!(bad_60_arg_0)) VAL [\old(cond)=0] [L21] COND TRUE !(cond) VAL [\old(cond)=0] [L21] reach_error() VAL [\old(cond)=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 1429 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10286 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10266 mSDsluCounter, 58786 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44561 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2025 IncrementalHoareTripleChecker+Invalid, 2030 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 14225 mSDtfsCounter, 2025 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1444occurred in iteration=6, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 2639 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 318 NumberOfCodeBlocks, 318 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 265 ConstructedInterpolants, 0 QuantifiedInterpolants, 767 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-27 23:22:19,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/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 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_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/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_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/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_5e1455c7-2f18-4635-8e9b-bf7044412303/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 45e58736dd2fb3c49049c2685505c5453ccebf8bd699ff36e792e3749e9ae2f9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:22:22,462 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:22:22,553 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-27 23:22:22,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:22:22,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:22:22,663 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:22:22,664 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:22:22,664 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:22:22,664 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:22:22,664 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:22:22,664 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:22:22,664 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:22:22,665 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:22:22,670 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:22:22,671 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:22:22,671 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:22:22,672 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:22:22,673 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:22:22,673 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:22:22,673 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:22:22,674 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:22:22,674 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 23:22:22,674 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 23:22:22,674 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 23:22:22,674 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:22:22,674 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:22:22,674 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:22:22,675 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:22:22,675 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:22:22,675 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:22:22,675 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:22:22,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:22:22,675 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:22:22,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:22:22,676 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:22:22,676 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:22:22,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:22:22,677 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:22:22,677 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:22:22,677 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:22:22,677 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:22:22,677 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 23:22:22,678 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 23:22:22,678 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:22:22,678 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:22:22,679 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:22:22,679 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:22:22,679 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_5e1455c7-2f18-4635-8e9b-bf7044412303/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 -> 45e58736dd2fb3c49049c2685505c5453ccebf8bd699ff36e792e3749e9ae2f9 [2024-11-27 23:22:23,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:22:23,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:22:23,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:22:23,023 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:22:23,025 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:22:23,028 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c [2024-11-27 23:22:26,090 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/data/163d8d2b6/12667e958d644f0683d9c4255b6feaf2/FLAG8ea9650ce [2024-11-27 23:22:26,645 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:22:26,649 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c [2024-11-27 23:22:26,680 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/data/163d8d2b6/12667e958d644f0683d9c4255b6feaf2/FLAG8ea9650ce [2024-11-27 23:22:27,188 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/data/163d8d2b6/12667e958d644f0683d9c4255b6feaf2 [2024-11-27 23:22:27,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:22:27,192 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:22:27,193 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:22:27,194 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:22:27,198 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:22:27,199 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:22:27" (1/1) ... [2024-11-27 23:22:27,200 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605d949d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:27, skipping insertion in model container [2024-11-27 23:22:27,200 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:22:27" (1/1) ... [2024-11-27 23:22:27,273 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:22:27,474 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_5e1455c7-2f18-4635-8e9b-bf7044412303/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c[1247,1260] [2024-11-27 23:22:27,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:22:27,968 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:22:27,980 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_5e1455c7-2f18-4635-8e9b-bf7044412303/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c[1247,1260] [2024-11-27 23:22:28,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:22:28,283 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:22:28,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:28 WrapperNode [2024-11-27 23:22:28,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:22:28,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:22:28,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:22:28,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:22:28,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:28" (1/1) ... [2024-11-27 23:22:28,362 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:28" (1/1) ... [2024-11-27 23:22:28,516 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2536 [2024-11-27 23:22:28,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:22:28,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:22:28,519 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:22:28,519 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:22:28,529 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:28" (1/1) ... [2024-11-27 23:22:28,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:28" (1/1) ... [2024-11-27 23:22:28,559 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:28" (1/1) ... [2024-11-27 23:22:28,630 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]. [2024-11-27 23:22:28,634 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:28" (1/1) ... [2024-11-27 23:22:28,634 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:28" (1/1) ... [2024-11-27 23:22:28,697 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:28" (1/1) ... [2024-11-27 23:22:28,701 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:28" (1/1) ... [2024-11-27 23:22:28,710 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:28" (1/1) ... [2024-11-27 23:22:28,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:28" (1/1) ... [2024-11-27 23:22:28,743 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:28" (1/1) ... [2024-11-27 23:22:28,780 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:22:28,781 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:22:28,781 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:22:28,781 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:22:28,782 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:28" (1/1) ... [2024-11-27 23:22:28,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:22:28,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:28,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:22:28,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:22:28,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:22:28,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 23:22:28,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:22:28,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:22:28,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 23:22:28,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 23:22:29,459 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:22:29,461 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:22:32,968 INFO L? ?]: Removed 244 outVars from TransFormulas that were not future-live. [2024-11-27 23:22:32,969 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:22:32,979 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:22:32,980 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 23:22:32,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:22:32 BoogieIcfgContainer [2024-11-27 23:22:32,981 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:22:32,983 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:22:32,983 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:22:32,989 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:22:32,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:22:27" (1/3) ... [2024-11-27 23:22:32,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a3c73d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:22:32, skipping insertion in model container [2024-11-27 23:22:32,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:28" (2/3) ... [2024-11-27 23:22:32,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a3c73d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:22:32, skipping insertion in model container [2024-11-27 23:22:32,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:22:32" (3/3) ... [2024-11-27 23:22:32,994 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Vsa16.c [2024-11-27 23:22:33,012 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:22:33,015 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.h_Vsa16.c that has 2 procedures, 20 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:22:33,074 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:22:33,091 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;@19da2f5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:22:33,092 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:22:33,096 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:22:33,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-27 23:22:33,103 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:33,104 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:33,104 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:33,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:33,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1806553242, now seen corresponding path program 1 times [2024-11-27 23:22:33,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:22:33,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [437062977] [2024-11-27 23:22:33,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:33,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:33,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:33,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:33,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:22:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:33,878 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-27 23:22:33,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:34,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:22:34,236 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:22:34,239 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:22:34,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437062977] [2024-11-27 23:22:34,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437062977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:34,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:34,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:22:34,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094145613] [2024-11-27 23:22:34,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:34,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:22:34,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:22:34,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:22:34,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:22:34,271 INFO L87 Difference]: Start difference. First operand has 20 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) 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) [2024-11-27 23:22:34,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:34,638 INFO L93 Difference]: Finished difference Result 48 states and 70 transitions. [2024-11-27 23:22:34,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:22:34,641 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 [2024-11-27 23:22:34,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:34,648 INFO L225 Difference]: With dead ends: 48 [2024-11-27 23:22:34,648 INFO L226 Difference]: Without dead ends: 30 [2024-11-27 23:22:34,651 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 [2024-11-27 23:22:34,657 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 10 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:34,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 59 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:22:34,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-27 23:22:34,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 23. [2024-11-27 23:22:34,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 16 states have internal predecessors, (16), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 23:22:34,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2024-11-27 23:22:34,704 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 7 [2024-11-27 23:22:34,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:34,705 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2024-11-27 23:22:34,706 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) [2024-11-27 23:22:34,706 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2024-11-27 23:22:34,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-27 23:22:34,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:34,707 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:34,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:22:34,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:34,912 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:34,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:34,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1603378135, now seen corresponding path program 1 times [2024-11-27 23:22:34,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:22:34,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [302449570] [2024-11-27 23:22:34,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:34,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:34,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:34,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:34,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:22:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:35,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 23:22:35,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:35,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:22:35,790 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:22:36,461 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:22:36,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302449570] [2024-11-27 23:22:36,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302449570] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:36,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1952239890] [2024-11-27 23:22:36,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:36,462 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:22:36,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:22:36,467 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:22:36,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-27 23:22:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:37,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-27 23:22:37,396 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:37,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:22:37,561 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:22:37,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1952239890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:37,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:22:37,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 9 [2024-11-27 23:22:37,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041182501] [2024-11-27 23:22:37,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:37,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:22:37,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:22:37,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:22:37,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:22:37,565 INFO L87 Difference]: Start difference. First operand 23 states and 26 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) [2024-11-27 23:22:37,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:37,865 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2024-11-27 23:22:37,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:22:37,868 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 [2024-11-27 23:22:37,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:37,869 INFO L225 Difference]: With dead ends: 36 [2024-11-27 23:22:37,869 INFO L226 Difference]: Without dead ends: 34 [2024-11-27 23:22:37,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:22:37,871 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:37,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 68 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:22:37,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-27 23:22:37,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 29. [2024-11-27 23:22:37,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 20 states have internal predecessors, (20), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 23:22:37,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2024-11-27 23:22:37,882 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 13 [2024-11-27 23:22:37,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:37,883 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2024-11-27 23:22:37,883 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) [2024-11-27 23:22:37,883 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2024-11-27 23:22:37,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-27 23:22:37,883 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:37,883 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:37,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 23:22:38,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-27 23:22:38,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 23:22:38,286 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:38,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:38,286 INFO L85 PathProgramCache]: Analyzing trace with hash -862712238, now seen corresponding path program 1 times [2024-11-27 23:22:38,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:22:38,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [863645411] [2024-11-27 23:22:38,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:38,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:38,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:38,293 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:38,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:22:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:38,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-27 23:22:38,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:38,964 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:22:38,964 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:22:39,133 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:22:39,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863645411] [2024-11-27 23:22:39,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863645411] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:39,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1731533395] [2024-11-27 23:22:39,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:39,134 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:22:39,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:22:39,136 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:22:39,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-27 23:22:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:39,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-27 23:22:39,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:40,064 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 23:22:40,064 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:22:40,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1731533395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:40,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:22:40,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 9 [2024-11-27 23:22:40,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356076867] [2024-11-27 23:22:40,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:40,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:22:40,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:22:40,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:22:40,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:22:40,066 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2024-11-27 23:22:40,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:40,357 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2024-11-27 23:22:40,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:22:40,358 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 19 [2024-11-27 23:22:40,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:40,359 INFO L225 Difference]: With dead ends: 40 [2024-11-27 23:22:40,359 INFO L226 Difference]: Without dead ends: 38 [2024-11-27 23:22:40,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:22:40,360 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 6 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:40,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 67 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:22:40,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-27 23:22:40,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2024-11-27 23:22:40,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 24 states have internal predecessors, (24), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 23:22:40,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2024-11-27 23:22:40,368 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 19 [2024-11-27 23:22:40,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:40,369 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2024-11-27 23:22:40,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2024-11-27 23:22:40,369 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2024-11-27 23:22:40,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-27 23:22:40,370 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:40,370 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:40,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-27 23:22:40,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 23:22:40,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:40,771 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:40,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:40,771 INFO L85 PathProgramCache]: Analyzing trace with hash -459390581, now seen corresponding path program 1 times [2024-11-27 23:22:40,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:22:40,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [175072343] [2024-11-27 23:22:40,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:40,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:40,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:40,775 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:40,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:22:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:41,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 69 conjuncts are in the unsatisfiable core [2024-11-27 23:22:41,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:41,884 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 23:22:41,885 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:22:44,520 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:22:44,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175072343] [2024-11-27 23:22:44,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175072343] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:44,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1376170983] [2024-11-27 23:22:44,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:44,521 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:22:44,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:22:44,523 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:22:44,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-27 23:22:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:45,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-27 23:22:45,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:45,849 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 23:22:45,849 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:22:45,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1376170983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:45,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:22:45,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 14 [2024-11-27 23:22:45,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732902766] [2024-11-27 23:22:45,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:45,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:22:45,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:22:45,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:22:45,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:22:45,850 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 23:22:46,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:46,230 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2024-11-27 23:22:46,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:22:46,230 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2024-11-27 23:22:46,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:46,231 INFO L225 Difference]: With dead ends: 44 [2024-11-27 23:22:46,231 INFO L226 Difference]: Without dead ends: 42 [2024-11-27 23:22:46,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-11-27 23:22:46,232 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:46,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 92 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:22:46,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-27 23:22:46,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2024-11-27 23:22:46,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.037037037037037) internal successors, (28), 28 states have internal predecessors, (28), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-27 23:22:46,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2024-11-27 23:22:46,241 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 25 [2024-11-27 23:22:46,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:46,241 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2024-11-27 23:22:46,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 23:22:46,241 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2024-11-27 23:22:46,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-27 23:22:46,242 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:46,242 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:46,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 23:22:46,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-27 23:22:46,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 23:22:46,643 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:46,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:46,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1065771446, now seen corresponding path program 1 times [2024-11-27 23:22:46,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:22:46,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1705511414] [2024-11-27 23:22:46,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:46,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:46,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:46,649 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:46,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 23:22:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:47,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-27 23:22:47,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:47,929 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-27 23:22:47,929 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:22:49,857 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:22:49,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705511414] [2024-11-27 23:22:49,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705511414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:49,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1438239177] [2024-11-27 23:22:49,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:49,858 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:22:49,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:22:49,860 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:22:49,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-27 23:22:51,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:51,336 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-27 23:22:51,347 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:22:51,625 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 23:22:51,625 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:22:52,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1438239177] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:22:52,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:22:52,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 10 [2024-11-27 23:22:52,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527129938] [2024-11-27 23:22:52,925 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:22:52,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:22:52,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:22:52,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:22:52,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:22:52,926 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 10 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:22:53,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:53,486 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2024-11-27 23:22:53,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:22:53,486 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 32 [2024-11-27 23:22:53,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:53,488 INFO L225 Difference]: With dead ends: 57 [2024-11-27 23:22:53,488 INFO L226 Difference]: Without dead ends: 55 [2024-11-27 23:22:53,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 62 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:22:53,489 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 20 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:53,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 48 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:22:53,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-27 23:22:53,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 48. [2024-11-27 23:22:53,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 32 states have (on average 1.03125) internal successors, (33), 33 states have internal predecessors, (33), 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) [2024-11-27 23:22:53,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2024-11-27 23:22:53,500 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 32 [2024-11-27 23:22:53,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:53,500 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2024-11-27 23:22:53,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 23:22:53,500 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2024-11-27 23:22:53,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-27 23:22:53,501 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:53,501 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:53,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 23:22:53,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-27 23:22:53,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-27 23:22:53,902 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:53,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:53,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1809343879, now seen corresponding path program 2 times [2024-11-27 23:22:53,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:22:53,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1641854828] [2024-11-27 23:22:53,904 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:22:53,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:22:53,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:53,908 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:22:53,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1455c7-2f18-4635-8e9b-bf7044412303/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 23:22:54,651 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:22:54,651 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:22:54,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-27 23:22:54,676 INFO L279 TraceCheckSpWp]: Computing forward predicates...