./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.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_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/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_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/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_5b3e9593-958e-4ea1-aa80-0beac1dc269e/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 60dab3e2339bce2b045dd3b78258045145cb10b71bd20a1415e48f1177a4dd2d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:15:55,802 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:15:55,880 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 02:15:55,886 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:15:55,886 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:15:55,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:15:55,910 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:15:55,910 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:15:55,910 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:15:55,911 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:15:55,911 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:15:55,911 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:15:55,911 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:15:55,911 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:15:55,911 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:15:55,912 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:15:55,912 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:15:55,912 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:15:55,912 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:15:55,912 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:15:55,912 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:15:55,912 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:15:55,912 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:15:55,912 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:15:55,912 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:15:55,913 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:15:55,913 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:15:55,913 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:15:55,913 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:15:55,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:15:55,913 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:15:55,913 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:15:55,913 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:15:55,913 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:15:55,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:15:55,913 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:15:55,914 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:15:55,914 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:15:55,914 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:15:55,914 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:15:55,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:15:55,914 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:15:55,914 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:15:55,914 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:15:55,914 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:15:55,914 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_5b3e9593-958e-4ea1-aa80-0beac1dc269e/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 -> 60dab3e2339bce2b045dd3b78258045145cb10b71bd20a1415e48f1177a4dd2d [2024-11-28 02:15:56,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:15:56,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:15:56,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:15:56,208 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:15:56,209 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:15:56,210 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c [2024-11-28 02:15:59,173 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/data/545399269/4fed1e4bb4a64f7c916df161fdce5e38/FLAG8378f2942 [2024-11-28 02:15:59,661 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:15:59,665 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c [2024-11-28 02:15:59,703 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/data/545399269/4fed1e4bb4a64f7c916df161fdce5e38/FLAG8378f2942 [2024-11-28 02:15:59,728 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/data/545399269/4fed1e4bb4a64f7c916df161fdce5e38 [2024-11-28 02:15:59,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:15:59,735 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:15:59,737 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:15:59,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:15:59,745 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:15:59,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:15:59" (1/1) ... [2024-11-28 02:15:59,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ae75765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:15:59, skipping insertion in model container [2024-11-28 02:15:59,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:15:59" (1/1) ... [2024-11-28 02:15:59,853 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:16:00,098 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_5b3e9593-958e-4ea1-aa80-0beac1dc269e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c[1244,1257] [2024-11-28 02:16:00,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:16:00,836 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:16:00,847 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_5b3e9593-958e-4ea1-aa80-0beac1dc269e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c[1244,1257] [2024-11-28 02:16:01,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:16:01,174 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:16:01,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:01 WrapperNode [2024-11-28 02:16:01,175 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:16:01,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:16:01,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:16:01,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:16:01,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:01" (1/1) ... [2024-11-28 02:16:01,272 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:01" (1/1) ... [2024-11-28 02:16:01,892 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4789 [2024-11-28 02:16:01,893 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:16:01,895 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:16:01,895 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:16:01,896 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:16:01,906 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:01" (1/1) ... [2024-11-28 02:16:01,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:01" (1/1) ... [2024-11-28 02:16:02,077 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:01" (1/1) ... [2024-11-28 02:16:02,312 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2024-11-28 02:16:02,312 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:01" (1/1) ... [2024-11-28 02:16:02,312 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:01" (1/1) ... [2024-11-28 02:16:02,458 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:01" (1/1) ... [2024-11-28 02:16:02,471 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:01" (1/1) ... [2024-11-28 02:16:02,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:01" (1/1) ... [2024-11-28 02:16:02,566 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:01" (1/1) ... [2024-11-28 02:16:02,593 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:01" (1/1) ... [2024-11-28 02:16:02,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:16:02,684 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:16:02,685 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:16:02,685 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:16:02,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:01" (1/1) ... [2024-11-28 02:16:02,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:16:02,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:16:02,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:16:02,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:16:02,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:16:02,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:16:02,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:16:02,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:16:02,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:16:03,440 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:16:03,443 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:16:09,211 INFO L? ?]: Removed 3293 outVars from TransFormulas that were not future-live. [2024-11-28 02:16:09,212 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:16:09,259 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:16:09,263 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:16:09,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:16:09 BoogieIcfgContainer [2024-11-28 02:16:09,267 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:16:09,270 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:16:09,270 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:16:09,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:16:09,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:15:59" (1/3) ... [2024-11-28 02:16:09,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@200a15c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:16:09, skipping insertion in model container [2024-11-28 02:16:09,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:01" (2/3) ... [2024-11-28 02:16:09,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@200a15c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:16:09, skipping insertion in model container [2024-11-28 02:16:09,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:16:09" (3/3) ... [2024-11-28 02:16:09,280 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.Heap.c [2024-11-28 02:16:09,297 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:16:09,299 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.Heap.c that has 1 procedures, 850 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:16:09,406 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:16:09,422 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;@119af16d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:16:09,423 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:16:09,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 850 states, 848 states have (on average 1.4988207547169812) internal successors, (1271), 849 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:09,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 02:16:09,440 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:09,441 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] [2024-11-28 02:16:09,441 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:16:09,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:09,447 INFO L85 PathProgramCache]: Analyzing trace with hash 59079382, now seen corresponding path program 1 times [2024-11-28 02:16:09,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:16:09,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674573587] [2024-11-28 02:16:09,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:09,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:16:09,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:10,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:16:10,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:16:10,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674573587] [2024-11-28 02:16:10,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674573587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:16:10,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:16:10,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:16:10,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043589398] [2024-11-28 02:16:10,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:10,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:16:10,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:16:10,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:16:10,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:16:10,708 INFO L87 Difference]: Start difference. First operand has 850 states, 848 states have (on average 1.4988207547169812) internal successors, (1271), 849 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:10,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:16:10,941 INFO L93 Difference]: Finished difference Result 1653 states and 2475 transitions. [2024-11-28 02:16:10,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:16:10,947 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-11-28 02:16:10,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:16:10,966 INFO L225 Difference]: With dead ends: 1653 [2024-11-28 02:16:10,966 INFO L226 Difference]: Without dead ends: 849 [2024-11-28 02:16:10,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:16:10,983 INFO L435 NwaCegarLoop]: 1265 mSDtfsCounter, 0 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3789 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:16:10,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3789 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:16:11,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2024-11-28 02:16:11,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 849. [2024-11-28 02:16:11,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 848 states have (on average 1.4964622641509433) internal successors, (1269), 848 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:11,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1269 transitions. [2024-11-28 02:16:11,099 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1269 transitions. Word has length 43 [2024-11-28 02:16:11,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:16:11,099 INFO L471 AbstractCegarLoop]: Abstraction has 849 states and 1269 transitions. [2024-11-28 02:16:11,100 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:11,100 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1269 transitions. [2024-11-28 02:16:11,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 02:16:11,101 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:11,101 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] [2024-11-28 02:16:11,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:16:11,102 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:16:11,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:11,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1833156242, now seen corresponding path program 1 times [2024-11-28 02:16:11,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:16:11,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042876730] [2024-11-28 02:16:11,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:11,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:16:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:11,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:16:11,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:16:11,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042876730] [2024-11-28 02:16:11,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042876730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:16:11,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:16:11,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:16:11,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081645278] [2024-11-28 02:16:11,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:11,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:16:11,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:16:11,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:16:11,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:16:11,464 INFO L87 Difference]: Start difference. First operand 849 states and 1269 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:11,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:16:11,553 INFO L93 Difference]: Finished difference Result 1654 states and 2473 transitions. [2024-11-28 02:16:11,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:16:11,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-28 02:16:11,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:16:11,559 INFO L225 Difference]: With dead ends: 1654 [2024-11-28 02:16:11,559 INFO L226 Difference]: Without dead ends: 851 [2024-11-28 02:16:11,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:16:11,561 INFO L435 NwaCegarLoop]: 1265 mSDtfsCounter, 0 mSDsluCounter, 2520 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3785 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:16:11,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3785 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:16:11,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2024-11-28 02:16:11,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 851. [2024-11-28 02:16:11,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 850 states have (on average 1.4952941176470589) internal successors, (1271), 850 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:11,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1271 transitions. [2024-11-28 02:16:11,600 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1271 transitions. Word has length 44 [2024-11-28 02:16:11,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:16:11,600 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1271 transitions. [2024-11-28 02:16:11,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:11,600 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1271 transitions. [2024-11-28 02:16:11,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 02:16:11,601 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:11,601 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] [2024-11-28 02:16:11,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:16:11,604 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:16:11,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:11,607 INFO L85 PathProgramCache]: Analyzing trace with hash -104697041, now seen corresponding path program 1 times [2024-11-28 02:16:11,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:16:11,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383477343] [2024-11-28 02:16:11,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:11,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:16:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:12,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:16:12,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:16:12,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383477343] [2024-11-28 02:16:12,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383477343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:16:12,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:16:12,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:16:12,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458659719] [2024-11-28 02:16:12,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:12,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:16:12,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:16:12,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:16:12,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:16:12,060 INFO L87 Difference]: Start difference. First operand 851 states and 1271 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:12,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:16:12,172 INFO L93 Difference]: Finished difference Result 1660 states and 2480 transitions. [2024-11-28 02:16:12,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:16:12,174 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2024-11-28 02:16:12,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:16:12,179 INFO L225 Difference]: With dead ends: 1660 [2024-11-28 02:16:12,179 INFO L226 Difference]: Without dead ends: 855 [2024-11-28 02:16:12,180 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 [2024-11-28 02:16:12,181 INFO L435 NwaCegarLoop]: 1262 mSDtfsCounter, 1236 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 3778 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:16:12,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1236 Valid, 3778 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:16:12,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-11-28 02:16:12,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 854. [2024-11-28 02:16:12,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 853 states have (on average 1.4935521688159437) internal successors, (1274), 853 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:12,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1274 transitions. [2024-11-28 02:16:12,204 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1274 transitions. Word has length 45 [2024-11-28 02:16:12,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:16:12,205 INFO L471 AbstractCegarLoop]: Abstraction has 854 states and 1274 transitions. [2024-11-28 02:16:12,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:12,205 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1274 transitions. [2024-11-28 02:16:12,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 02:16:12,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:12,208 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] [2024-11-28 02:16:12,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:16:12,208 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:16:12,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:12,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1681062923, now seen corresponding path program 1 times [2024-11-28 02:16:12,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:16:12,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223402145] [2024-11-28 02:16:12,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:12,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:16:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:13,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:16:13,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:16:13,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223402145] [2024-11-28 02:16:13,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223402145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:16:13,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:16:13,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 02:16:13,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879606435] [2024-11-28 02:16:13,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:13,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:16:13,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:16:13,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:16:13,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:16:13,756 INFO L87 Difference]: Start difference. First operand 854 states and 1274 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:14,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:16:14,100 INFO L93 Difference]: Finished difference Result 1687 states and 2517 transitions. [2024-11-28 02:16:14,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:16:14,101 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-11-28 02:16:14,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:16:14,109 INFO L225 Difference]: With dead ends: 1687 [2024-11-28 02:16:14,109 INFO L226 Difference]: Without dead ends: 879 [2024-11-28 02:16:14,110 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:16:14,111 INFO L435 NwaCegarLoop]: 1251 mSDtfsCounter, 1281 mSDsluCounter, 7503 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 8754 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:16:14,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1281 Valid, 8754 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:16:14,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2024-11-28 02:16:14,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 865. [2024-11-28 02:16:14,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 864 states have (on average 1.4930555555555556) internal successors, (1290), 864 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:14,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1290 transitions. [2024-11-28 02:16:14,149 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1290 transitions. Word has length 46 [2024-11-28 02:16:14,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:16:14,149 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1290 transitions. [2024-11-28 02:16:14,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:14,149 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1290 transitions. [2024-11-28 02:16:14,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 02:16:14,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:14,154 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] [2024-11-28 02:16:14,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:16:14,154 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:16:14,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:14,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1958246073, now seen corresponding path program 1 times [2024-11-28 02:16:14,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:16:14,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501375819] [2024-11-28 02:16:14,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:14,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:16:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:14,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:16:14,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:16:14,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501375819] [2024-11-28 02:16:14,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501375819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:16:14,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:16:14,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 02:16:14,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783009175] [2024-11-28 02:16:14,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:14,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:16:14,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:16:14,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:16:14,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:16:14,837 INFO L87 Difference]: Start difference. First operand 865 states and 1290 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:15,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:16:15,073 INFO L93 Difference]: Finished difference Result 1694 states and 2526 transitions. [2024-11-28 02:16:15,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:16:15,073 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-11-28 02:16:15,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:16:15,077 INFO L225 Difference]: With dead ends: 1694 [2024-11-28 02:16:15,077 INFO L226 Difference]: Without dead ends: 875 [2024-11-28 02:16:15,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:16:15,079 INFO L435 NwaCegarLoop]: 1251 mSDtfsCounter, 1245 mSDsluCounter, 7489 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 8740 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:16:15,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1245 Valid, 8740 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:16:15,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2024-11-28 02:16:15,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 871. [2024-11-28 02:16:15,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 870 states have (on average 1.4919540229885058) internal successors, (1298), 870 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:15,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1298 transitions. [2024-11-28 02:16:15,102 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1298 transitions. Word has length 46 [2024-11-28 02:16:15,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:16:15,102 INFO L471 AbstractCegarLoop]: Abstraction has 871 states and 1298 transitions. [2024-11-28 02:16:15,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:15,102 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1298 transitions. [2024-11-28 02:16:15,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-28 02:16:15,103 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:15,103 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] [2024-11-28 02:16:15,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:16:15,104 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:16:15,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:15,104 INFO L85 PathProgramCache]: Analyzing trace with hash 2140631467, now seen corresponding path program 1 times [2024-11-28 02:16:15,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:16:15,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652479308] [2024-11-28 02:16:15,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:15,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:16:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:16:15,174 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:16:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:16:15,311 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:16:15,311 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:16:15,312 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:16:15,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:16:15,318 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-28 02:16:15,414 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:16:15,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:16:15 BoogieIcfgContainer [2024-11-28 02:16:15,417 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:16:15,418 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:16:15,418 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:16:15,418 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:16:15,419 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:16:09" (3/4) ... [2024-11-28 02:16:15,421 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:16:15,422 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:16:15,423 INFO L158 Benchmark]: Toolchain (without parser) took 15689.38ms. Allocated memory was 117.4MB in the beginning and 687.9MB in the end (delta: 570.4MB). Free memory was 88.9MB in the beginning and 205.4MB in the end (delta: -116.5MB). Peak memory consumption was 462.1MB. Max. memory is 16.1GB. [2024-11-28 02:16:15,424 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:16:15,424 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1438.47ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 40.0MB in the end (delta: 48.5MB). Peak memory consumption was 73.7MB. Max. memory is 16.1GB. [2024-11-28 02:16:15,424 INFO L158 Benchmark]: Boogie Procedure Inliner took 718.00ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 40.0MB in the beginning and 103.6MB in the end (delta: -63.6MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. [2024-11-28 02:16:15,425 INFO L158 Benchmark]: Boogie Preprocessor took 787.58ms. Allocated memory is still 234.9MB. Free memory was 103.6MB in the beginning and 109.4MB in the end (delta: -5.7MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. [2024-11-28 02:16:15,425 INFO L158 Benchmark]: RCFGBuilder took 6582.81ms. Allocated memory was 234.9MB in the beginning and 687.9MB in the end (delta: 453.0MB). Free memory was 109.4MB in the beginning and 256.5MB in the end (delta: -147.1MB). Peak memory consumption was 317.2MB. Max. memory is 16.1GB. [2024-11-28 02:16:15,425 INFO L158 Benchmark]: TraceAbstraction took 6147.63ms. Allocated memory is still 687.9MB. Free memory was 256.5MB in the beginning and 205.4MB in the end (delta: 51.1MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. [2024-11-28 02:16:15,426 INFO L158 Benchmark]: Witness Printer took 4.87ms. Allocated memory is still 687.9MB. Free memory was 205.4MB in the beginning and 205.4MB in the end (delta: 38.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:16:15,428 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1438.47ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 40.0MB in the end (delta: 48.5MB). Peak memory consumption was 73.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 718.00ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 40.0MB in the beginning and 103.6MB in the end (delta: -63.6MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 787.58ms. Allocated memory is still 234.9MB. Free memory was 103.6MB in the beginning and 109.4MB in the end (delta: -5.7MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. * RCFGBuilder took 6582.81ms. Allocated memory was 234.9MB in the beginning and 687.9MB in the end (delta: 453.0MB). Free memory was 109.4MB in the beginning and 256.5MB in the end (delta: -147.1MB). Peak memory consumption was 317.2MB. Max. memory is 16.1GB. * TraceAbstraction took 6147.63ms. Allocated memory is still 687.9MB. Free memory was 256.5MB in the beginning and 205.4MB in the end (delta: 51.1MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. * Witness Printer took 4.87ms. Allocated memory is still 687.9MB. Free memory was 205.4MB in the beginning and 205.4MB in the end (delta: 38.1kB). 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 358. 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 - 2); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (2 - 1); [L32] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 32); [L33] const SORT_9 msb_SORT_9 = (SORT_9)1 << (32 - 1); [L35] const SORT_13 mask_SORT_13 = (SORT_13)-1 >> (sizeof(SORT_13) * 8 - 3); [L36] const SORT_13 msb_SORT_13 = (SORT_13)1 << (3 - 1); [L38] const SORT_55 mask_SORT_55 = (SORT_55)-1 >> (sizeof(SORT_55) * 8 - 29); [L39] const SORT_55 msb_SORT_55 = (SORT_55)1 << (29 - 1); [L41] const SORT_1 var_6 = 0; [L42] const SORT_9 var_11 = 0; [L43] const SORT_13 var_14 = 0; [L44] const SORT_1 var_27 = 1; [L45] const SORT_9 var_35 = 4; [L46] const SORT_3 var_38 = 0; [L47] const SORT_55 var_56 = 0; [L48] const SORT_9 var_60 = 1; [L49] const SORT_3 var_82 = 2; [L50] const SORT_3 var_87 = 3; [L51] const SORT_13 var_93 = 1; [L52] const SORT_13 var_96 = 3; [L53] const SORT_13 var_99 = 2; [L54] const SORT_13 var_103 = 5; [L55] const SORT_3 var_109 = 1; [L56] const SORT_13 var_117 = 7; [L57] const SORT_13 var_126 = 6; [L58] const SORT_13 var_130 = 4; [L60] SORT_1 input_2; [L61] SORT_3 input_4; [L62] SORT_3 input_5; [L63] SORT_1 input_81; [L64] SORT_1 input_106; [L65] SORT_3 input_107; [L66] SORT_13 input_137; [L67] SORT_13 input_138; [L68] SORT_13 input_139; [L69] SORT_13 input_150; [L70] SORT_13 input_151; [L71] SORT_3 input_191; [L72] SORT_3 input_192; [L73] SORT_3 input_193; [L74] SORT_3 input_199; [L75] SORT_3 input_200; [L76] SORT_3 input_201; [L77] SORT_3 input_202; [L78] SORT_3 input_203; [L79] SORT_3 input_251; [L80] SORT_3 input_263; [L81] SORT_3 input_281; [L82] SORT_3 input_282; [L83] SORT_3 input_290; [L84] SORT_3 input_316; [L85] SORT_3 input_341; [L86] SORT_3 input_342; [L87] SORT_3 input_343; [L88] SORT_3 input_360; [L89] SORT_3 input_361; [L90] SORT_3 input_369; [L91] SORT_3 input_377; [L92] SORT_3 input_378; [L93] SORT_3 input_397; [L94] SORT_3 input_398; [L95] SORT_3 input_399; [L96] SORT_3 input_407; [L97] SORT_3 input_414; [L98] SORT_3 input_425; [L99] SORT_3 input_426; [L100] SORT_3 input_435; [L101] SORT_3 input_440; [L102] SORT_3 input_444; [L103] SORT_3 input_445; [L104] SORT_3 input_474; [L105] SORT_3 input_475; [L106] SORT_3 input_483; [L107] SORT_3 input_487; [L108] SORT_3 input_488; [L109] SORT_3 input_507; [L110] SORT_3 input_508; [L111] SORT_3 input_509; [L112] SORT_3 input_517; [L113] SORT_3 input_519; [L114] SORT_3 input_523; [L115] SORT_3 input_524; [L116] SORT_3 input_533; [L117] SORT_3 input_538; [L118] SORT_3 input_542; [L119] SORT_3 input_543; [L120] SORT_3 input_572; [L121] SORT_3 input_573; [L122] SORT_3 input_581; [L123] SORT_3 input_585; [L124] SORT_3 input_586; [L125] SORT_3 input_605; [L126] SORT_3 input_606; [L127] SORT_3 input_607; [L128] SORT_3 input_615; [L129] SORT_3 input_617; [L130] SORT_3 input_621; [L131] SORT_3 input_622; [L132] SORT_3 input_631; [L133] SORT_3 input_636; [L134] SORT_3 input_640; [L135] SORT_3 input_641; [L136] SORT_3 input_670; [L137] SORT_3 input_671; [L138] SORT_3 input_679; [L139] SORT_3 input_683; [L140] SORT_3 input_684; [L141] SORT_3 input_703; [L142] SORT_3 input_704; [L143] SORT_3 input_705; [L144] SORT_3 input_713; [L145] SORT_3 input_715; [L146] SORT_3 input_719; [L147] SORT_3 input_720; [L148] SORT_3 input_729; [L149] SORT_3 input_734; [L150] SORT_3 input_738; [L151] SORT_3 input_739; [L152] SORT_13 input_766; [L153] SORT_13 input_767; [L154] SORT_13 input_768; [L155] SORT_13 input_774; [L156] SORT_13 input_775; [L157] SORT_13 input_792; [L158] SORT_13 input_803; [L159] SORT_13 input_804; [L160] SORT_13 input_806; [L161] SORT_13 input_815; [L162] SORT_13 input_833; [L163] SORT_13 input_834; [L164] SORT_13 input_835; [L165] SORT_13 input_841; [L166] SORT_13 input_842; [L167] SORT_13 input_859; [L168] SORT_13 input_868; [L169] SORT_13 input_869; [L170] SORT_13 input_871; [L171] SORT_13 input_880; [L172] SORT_13 input_884; [L174] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L174] SORT_1 state_7 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L175] EXPR __VERIFIER_nondet_uchar() & mask_SORT_13 VAL [mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L175] SORT_13 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_13; [L176] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L176] SORT_3 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L177] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L177] SORT_3 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L178] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L178] SORT_3 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L179] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L179] SORT_3 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L180] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L180] SORT_3 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L181] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L181] SORT_3 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L182] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L182] SORT_3 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L183] EXPR __VERIFIER_nondet_uchar() & mask_SORT_13 VAL [mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L183] SORT_13 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_13; [L184] EXPR __VERIFIER_nondet_uchar() & mask_SORT_13 VAL [mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L184] SORT_13 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_13; [L186] SORT_1 init_8_arg_1 = var_6; [L187] state_7 = init_8_arg_1 [L188] SORT_13 init_16_arg_1 = var_14; [L189] state_15 = init_16_arg_1 [L190] SORT_3 init_40_arg_1 = var_38; [L191] state_39 = init_40_arg_1 [L192] SORT_3 init_42_arg_1 = var_38; [L193] state_41 = init_42_arg_1 [L194] SORT_3 init_44_arg_1 = var_38; [L195] state_43 = init_44_arg_1 [L196] SORT_3 init_46_arg_1 = var_38; [L197] state_45 = init_46_arg_1 [L198] SORT_3 init_48_arg_1 = var_38; [L199] state_47 = init_48_arg_1 [L200] SORT_3 init_50_arg_1 = var_38; [L201] state_49 = init_50_arg_1 [L202] SORT_3 init_52_arg_1 = var_38; [L203] state_51 = init_52_arg_1 [L204] SORT_13 init_54_arg_1 = var_14; [L205] state_53 = init_54_arg_1 [L206] SORT_13 init_76_arg_1 = var_14; [L207] state_75 = init_76_arg_1 VAL [mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, state_15=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_75=0, state_7=0, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L210] input_2 = __VERIFIER_nondet_uchar() [L211] input_4 = __VERIFIER_nondet_uchar() [L212] EXPR input_4 & mask_SORT_3 VAL [mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, state_15=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_75=0, state_7=0, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L212] input_4 = input_4 & mask_SORT_3 [L213] input_5 = __VERIFIER_nondet_uchar() [L214] input_81 = __VERIFIER_nondet_uchar() [L215] input_106 = __VERIFIER_nondet_uchar() [L216] input_107 = __VERIFIER_nondet_uchar() [L217] input_137 = __VERIFIER_nondet_uchar() [L218] input_138 = __VERIFIER_nondet_uchar() [L219] input_139 = __VERIFIER_nondet_uchar() [L220] input_150 = __VERIFIER_nondet_uchar() [L221] input_151 = __VERIFIER_nondet_uchar() [L222] input_191 = __VERIFIER_nondet_uchar() [L223] input_192 = __VERIFIER_nondet_uchar() [L224] input_193 = __VERIFIER_nondet_uchar() [L225] input_199 = __VERIFIER_nondet_uchar() [L226] input_200 = __VERIFIER_nondet_uchar() [L227] input_201 = __VERIFIER_nondet_uchar() [L228] input_202 = __VERIFIER_nondet_uchar() [L229] input_203 = __VERIFIER_nondet_uchar() [L230] input_251 = __VERIFIER_nondet_uchar() [L231] input_263 = __VERIFIER_nondet_uchar() [L232] input_281 = __VERIFIER_nondet_uchar() [L233] input_282 = __VERIFIER_nondet_uchar() [L234] input_290 = __VERIFIER_nondet_uchar() [L235] input_316 = __VERIFIER_nondet_uchar() [L236] input_341 = __VERIFIER_nondet_uchar() [L237] input_342 = __VERIFIER_nondet_uchar() [L238] input_343 = __VERIFIER_nondet_uchar() [L239] input_360 = __VERIFIER_nondet_uchar() [L240] input_361 = __VERIFIER_nondet_uchar() [L241] input_369 = __VERIFIER_nondet_uchar() [L242] input_377 = __VERIFIER_nondet_uchar() [L243] input_378 = __VERIFIER_nondet_uchar() [L244] input_397 = __VERIFIER_nondet_uchar() [L245] input_398 = __VERIFIER_nondet_uchar() [L246] input_399 = __VERIFIER_nondet_uchar() [L247] input_407 = __VERIFIER_nondet_uchar() [L248] input_414 = __VERIFIER_nondet_uchar() [L249] input_425 = __VERIFIER_nondet_uchar() [L250] input_426 = __VERIFIER_nondet_uchar() [L251] input_435 = __VERIFIER_nondet_uchar() [L252] input_440 = __VERIFIER_nondet_uchar() [L253] input_444 = __VERIFIER_nondet_uchar() [L254] input_445 = __VERIFIER_nondet_uchar() [L255] input_474 = __VERIFIER_nondet_uchar() [L256] input_475 = __VERIFIER_nondet_uchar() [L257] input_483 = __VERIFIER_nondet_uchar() [L258] input_487 = __VERIFIER_nondet_uchar() [L259] input_488 = __VERIFIER_nondet_uchar() [L260] input_507 = __VERIFIER_nondet_uchar() [L261] input_508 = __VERIFIER_nondet_uchar() [L262] input_509 = __VERIFIER_nondet_uchar() [L263] input_517 = __VERIFIER_nondet_uchar() [L264] input_519 = __VERIFIER_nondet_uchar() [L265] input_523 = __VERIFIER_nondet_uchar() [L266] input_524 = __VERIFIER_nondet_uchar() [L267] input_533 = __VERIFIER_nondet_uchar() [L268] input_538 = __VERIFIER_nondet_uchar() [L269] input_542 = __VERIFIER_nondet_uchar() [L270] input_543 = __VERIFIER_nondet_uchar() [L271] input_572 = __VERIFIER_nondet_uchar() [L272] input_573 = __VERIFIER_nondet_uchar() [L273] input_581 = __VERIFIER_nondet_uchar() [L274] input_585 = __VERIFIER_nondet_uchar() [L275] input_586 = __VERIFIER_nondet_uchar() [L276] input_605 = __VERIFIER_nondet_uchar() [L277] input_606 = __VERIFIER_nondet_uchar() [L278] input_607 = __VERIFIER_nondet_uchar() [L279] input_615 = __VERIFIER_nondet_uchar() [L280] input_617 = __VERIFIER_nondet_uchar() [L281] input_621 = __VERIFIER_nondet_uchar() [L282] input_622 = __VERIFIER_nondet_uchar() [L283] input_631 = __VERIFIER_nondet_uchar() [L284] input_636 = __VERIFIER_nondet_uchar() [L285] input_640 = __VERIFIER_nondet_uchar() [L286] input_641 = __VERIFIER_nondet_uchar() [L287] input_670 = __VERIFIER_nondet_uchar() [L288] input_671 = __VERIFIER_nondet_uchar() [L289] input_679 = __VERIFIER_nondet_uchar() [L290] input_683 = __VERIFIER_nondet_uchar() [L291] input_684 = __VERIFIER_nondet_uchar() [L292] input_703 = __VERIFIER_nondet_uchar() [L293] input_704 = __VERIFIER_nondet_uchar() [L294] input_705 = __VERIFIER_nondet_uchar() [L295] input_713 = __VERIFIER_nondet_uchar() [L296] input_715 = __VERIFIER_nondet_uchar() [L297] input_719 = __VERIFIER_nondet_uchar() [L298] input_720 = __VERIFIER_nondet_uchar() [L299] input_729 = __VERIFIER_nondet_uchar() [L300] input_734 = __VERIFIER_nondet_uchar() [L301] input_738 = __VERIFIER_nondet_uchar() [L302] input_739 = __VERIFIER_nondet_uchar() [L303] input_766 = __VERIFIER_nondet_uchar() [L304] input_767 = __VERIFIER_nondet_uchar() [L305] input_768 = __VERIFIER_nondet_uchar() [L306] input_774 = __VERIFIER_nondet_uchar() [L307] input_775 = __VERIFIER_nondet_uchar() [L308] input_792 = __VERIFIER_nondet_uchar() [L309] input_803 = __VERIFIER_nondet_uchar() [L310] input_804 = __VERIFIER_nondet_uchar() [L311] input_806 = __VERIFIER_nondet_uchar() [L312] input_815 = __VERIFIER_nondet_uchar() [L313] input_833 = __VERIFIER_nondet_uchar() [L314] input_834 = __VERIFIER_nondet_uchar() [L315] input_835 = __VERIFIER_nondet_uchar() [L316] input_841 = __VERIFIER_nondet_uchar() [L317] input_842 = __VERIFIER_nondet_uchar() [L318] input_859 = __VERIFIER_nondet_uchar() [L319] input_868 = __VERIFIER_nondet_uchar() [L320] input_869 = __VERIFIER_nondet_uchar() [L321] input_871 = __VERIFIER_nondet_uchar() [L322] input_880 = __VERIFIER_nondet_uchar() [L323] input_884 = __VERIFIER_nondet_uchar() [L326] SORT_1 var_10_arg_0 = state_7; VAL [input_4=0, mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, state_15=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_75=0, state_7=0, var_103=5, var_109=1, var_10_arg_0=0, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L327] EXPR var_10_arg_0 & mask_SORT_1 VAL [input_4=0, mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, state_15=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_75=0, state_7=0, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L327] var_10_arg_0 = var_10_arg_0 & mask_SORT_1 [L328] SORT_9 var_10 = var_10_arg_0; [L329] SORT_9 var_12_arg_0 = var_10; [L330] SORT_9 var_12_arg_1 = var_11; [L331] SORT_1 var_12 = var_12_arg_0 == var_12_arg_1; [L332] SORT_13 var_17_arg_0 = state_15; [L333] SORT_1 var_17 = var_17_arg_0 >> 2; [L334] SORT_1 var_18_arg_0 = var_17; VAL [input_4=0, mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, state_15=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_75=0, state_7=0, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_12=1, var_130=4, var_14=0, var_18_arg_0=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L335] EXPR var_18_arg_0 & mask_SORT_1 VAL [input_4=0, mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, state_15=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_75=0, state_7=0, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_12=1, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L335] var_18_arg_0 = var_18_arg_0 & mask_SORT_1 [L336] SORT_9 var_18 = var_18_arg_0; [L337] SORT_9 var_19_arg_0 = var_18; [L338] SORT_9 var_19_arg_1 = var_11; [L339] SORT_1 var_19 = var_19_arg_0 == var_19_arg_1; [L340] SORT_13 var_20_arg_0 = state_15; [L341] SORT_3 var_20 = var_20_arg_0 >> 0; [L342] SORT_3 var_21_arg_0 = var_20; VAL [input_4=0, mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, state_15=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_75=0, state_7=0, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_12=1, var_130=4, var_14=0, var_19=1, var_21_arg_0=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L343] EXPR var_21_arg_0 & mask_SORT_3 VAL [input_4=0, mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, state_15=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_75=0, state_7=0, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_12=1, var_130=4, var_14=0, var_19=1, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L343] var_21_arg_0 = var_21_arg_0 & mask_SORT_3 [L344] SORT_9 var_21 = var_21_arg_0; [L345] SORT_9 var_22_arg_0 = var_21; [L346] SORT_9 var_22_arg_1 = var_11; [L347] SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; [L348] SORT_1 var_23_arg_0 = var_19; [L349] SORT_1 var_23_arg_1 = var_22; VAL [input_4=0, mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, state_15=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_75=0, state_7=0, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_12=1, var_130=4, var_14=0, var_23_arg_0=1, var_23_arg_1=1, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L350] EXPR var_23_arg_0 | var_23_arg_1 VAL [input_4=0, mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, state_15=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_75=0, state_7=0, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_12=1, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L350] SORT_1 var_23 = var_23_arg_0 | var_23_arg_1; [L351] SORT_1 var_24_arg_0 = var_12; [L352] SORT_1 var_24_arg_1 = var_23; VAL [input_4=0, mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, state_15=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_75=0, state_7=0, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_24_arg_0=1, var_24_arg_1=1, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L353] EXPR var_24_arg_0 & var_24_arg_1 VAL [input_4=0, mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, state_15=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_75=0, state_7=0, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L353] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L354] SORT_1 var_28_arg_0 = var_24; [L355] SORT_1 var_28 = ~var_28_arg_0; [L356] SORT_1 var_29_arg_0 = var_27; [L357] SORT_1 var_29_arg_1 = var_28; VAL [input_4=0, mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, state_15=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_75=0, state_7=0, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_27=1, var_29_arg_0=1, var_29_arg_1=-2, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L358] EXPR var_29_arg_0 & var_29_arg_1 VAL [input_4=0, mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, state_15=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_75=0, state_7=0, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L358] SORT_1 var_29 = var_29_arg_0 & var_29_arg_1; [L359] EXPR var_29 & mask_SORT_1 VAL [input_4=0, mask_SORT_13=7, mask_SORT_1=1, mask_SORT_3=3, state_15=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_75=0, state_7=0, var_103=5, var_109=1, var_117=7, var_11=0, var_126=6, var_130=4, var_14=0, var_27=1, var_35=4, var_38=0, var_56=0, var_60=1, var_6=0, var_82=2, var_87=3, var_93=1, var_96=3, var_99=2] [L359] var_29 = var_29 & mask_SORT_1 [L360] SORT_1 bad_30_arg_0 = var_29; [L361] CALL __VERIFIER_assert(!(bad_30_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 850 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3762 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3762 mSDsluCounter, 28846 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22552 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 299 IncrementalHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 6294 mSDtfsCounter, 299 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=871occurred in iteration=5, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 271 NumberOfCodeBlocks, 271 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 219 ConstructedInterpolants, 0 QuantifiedInterpolants, 563 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 [2024-11-28 02:16:15,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/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_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/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_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/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_5b3e9593-958e-4ea1-aa80-0beac1dc269e/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 60dab3e2339bce2b045dd3b78258045145cb10b71bd20a1415e48f1177a4dd2d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:16:18,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:16:18,373 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-28 02:16:18,384 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:16:18,384 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:16:18,424 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:16:18,425 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:16:18,426 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:16:18,426 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:16:18,426 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:16:18,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:16:18,427 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:16:18,427 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:16:18,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:16:18,428 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:16:18,429 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:16:18,429 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:16:18,430 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:16:18,430 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:16:18,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:16:18,430 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:16:18,430 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:16:18,430 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:16:18,430 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:16:18,430 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:16:18,430 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:16:18,430 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:16:18,430 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:16:18,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:16:18,430 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:16:18,431 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:16:18,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:16:18,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:16:18,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:16:18,432 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:16:18,432 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:16:18,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:16:18,432 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:16:18,433 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:16:18,433 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:16:18,433 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:16:18,433 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:16:18,434 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:16:18,434 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:16:18,434 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:16:18,434 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:16:18,434 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:16:18,434 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_5b3e9593-958e-4ea1-aa80-0beac1dc269e/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 -> 60dab3e2339bce2b045dd3b78258045145cb10b71bd20a1415e48f1177a4dd2d [2024-11-28 02:16:18,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:16:18,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:16:18,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:16:18,811 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:16:18,813 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:16:18,815 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c [2024-11-28 02:16:21,787 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/data/ee945e8e1/5ffc9a3204a84c3483c96392f4a946b7/FLAGd0080e8e0 [2024-11-28 02:16:22,264 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:16:22,265 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c [2024-11-28 02:16:22,314 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/data/ee945e8e1/5ffc9a3204a84c3483c96392f4a946b7/FLAGd0080e8e0 [2024-11-28 02:16:22,336 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/data/ee945e8e1/5ffc9a3204a84c3483c96392f4a946b7 [2024-11-28 02:16:22,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:16:22,342 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:16:22,343 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:16:22,345 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:16:22,349 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:16:22,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:16:22" (1/1) ... [2024-11-28 02:16:22,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@668e9038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:22, skipping insertion in model container [2024-11-28 02:16:22,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:16:22" (1/1) ... [2024-11-28 02:16:22,453 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:16:22,701 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_5b3e9593-958e-4ea1-aa80-0beac1dc269e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c[1244,1257] [2024-11-28 02:16:23,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:16:23,258 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:16:23,266 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_5b3e9593-958e-4ea1-aa80-0beac1dc269e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Heap.c[1244,1257] [2024-11-28 02:16:23,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:16:23,492 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:16:23,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:23 WrapperNode [2024-11-28 02:16:23,494 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:16:23,495 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:16:23,495 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:16:23,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:16:23,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:23" (1/1) ... [2024-11-28 02:16:23,546 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:23" (1/1) ... [2024-11-28 02:16:23,775 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3109 [2024-11-28 02:16:23,776 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:16:23,776 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:16:23,777 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:16:23,777 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:16:23,796 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:23" (1/1) ... [2024-11-28 02:16:23,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:23" (1/1) ... [2024-11-28 02:16:23,851 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:23" (1/1) ... [2024-11-28 02:16:23,950 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2024-11-28 02:16:23,955 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:23" (1/1) ... [2024-11-28 02:16:23,955 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:23" (1/1) ... [2024-11-28 02:16:24,025 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:23" (1/1) ... [2024-11-28 02:16:24,030 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:23" (1/1) ... [2024-11-28 02:16:24,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:23" (1/1) ... [2024-11-28 02:16:24,049 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:23" (1/1) ... [2024-11-28 02:16:24,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:23" (1/1) ... [2024-11-28 02:16:24,080 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:16:24,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:16:24,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:16:24,082 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:16:24,083 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:23" (1/1) ... [2024-11-28 02:16:24,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:16:24,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:16:24,126 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:16:24,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:16:24,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:16:24,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:16:24,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 02:16:24,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:16:24,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:16:24,857 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:16:24,859 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:16:27,231 INFO L? ?]: Removed 166 outVars from TransFormulas that were not future-live. [2024-11-28 02:16:27,231 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:16:27,241 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:16:27,241 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:16:27,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:16:27 BoogieIcfgContainer [2024-11-28 02:16:27,242 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:16:27,245 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:16:27,245 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:16:27,252 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:16:27,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:16:22" (1/3) ... [2024-11-28 02:16:27,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b233208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:16:27, skipping insertion in model container [2024-11-28 02:16:27,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:16:23" (2/3) ... [2024-11-28 02:16:27,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b233208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:16:27, skipping insertion in model container [2024-11-28 02:16:27,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:16:27" (3/3) ... [2024-11-28 02:16:27,255 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.Heap.c [2024-11-28 02:16:27,274 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:16:27,276 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.Heap.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:16:27,348 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:16:27,365 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;@5afcbe87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:16:27,366 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:16:27,370 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:27,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-28 02:16:27,377 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:27,377 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 02:16:27,378 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:16:27,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:27,384 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-28 02:16:27,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:16:27,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [489653173] [2024-11-28 02:16:27,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:27,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:16:27,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:16:27,401 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:16:27,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:16:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:28,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 02:16:28,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:16:28,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:16:28,610 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:16:28,614 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:16:28,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489653173] [2024-11-28 02:16:28,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489653173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:16:28,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:16:28,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:16:28,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427751764] [2024-11-28 02:16:28,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:16:28,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:16:28,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:16:28,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:16:28,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:16:28,646 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:28,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:16:28,784 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-28 02:16:28,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:16:28,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-28 02:16:28,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:16:28,796 INFO L225 Difference]: With dead ends: 18 [2024-11-28 02:16:28,796 INFO L226 Difference]: Without dead ends: 10 [2024-11-28 02:16:28,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:16:28,803 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:16:28,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:16:28,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-28 02:16:28,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-28 02:16:28,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:28,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-28 02:16:28,841 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-28 02:16:28,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:16:28,842 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-28 02:16:28,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:16:28,842 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-28 02:16:28,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 02:16:28,843 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:16:28,843 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-28 02:16:28,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:16:29,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:16:29,045 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:16:29,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:16:29,046 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-28 02:16:29,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:16:29,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [511781285] [2024-11-28 02:16:29,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:16:29,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:16:29,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:16:29,052 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:16:29,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b3e9593-958e-4ea1-aa80-0beac1dc269e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:16:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:16:30,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-28 02:16:30,128 INFO L279 TraceCheckSpWp]: Computing forward predicates...