./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5829ddd7-aace-4754-88fa-04c461ae38ff/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5829ddd7-aace-4754-88fa-04c461ae38ff/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5829ddd7-aace-4754-88fa-04c461ae38ff/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5829ddd7-aace-4754-88fa-04c461ae38ff/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5829ddd7-aace-4754-88fa-04c461ae38ff/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5829ddd7-aace-4754-88fa-04c461ae38ff/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e028c51cfa02b345902e1292d1a644c7ee4a15183825ee6e2ec2fc316df147e6
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 01:07:21,995 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 01:07:22,128 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5829ddd7-aace-4754-88fa-04c461ae38ff/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf
[2024-11-24 01:07:22,143 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 01:07:22,145 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 01:07:22,179 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 01:07:22,180 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 01:07:22,180 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 01:07:22,181 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 01:07:22,181 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 01:07:22,181 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 01:07:22,181 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 01:07:22,182 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 01:07:22,182 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 01:07:22,182 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 01:07:22,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 01:07:22,183 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-24 01:07:22,183 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 01:07:22,183 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-24 01:07:22,183 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-24 01:07:22,183 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-24 01:07:22,184 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 01:07:22,184 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-24 01:07:22,184 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-24 01:07:22,184 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 01:07:22,184 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 01:07:22,185 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 01:07:22,185 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:07:22,185 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:07:22,185 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:07:22,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:07:22,186 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 01:07:22,186 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 01:07:22,186 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 01:07:22,186 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 01:07:22,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:07:22,187 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 01:07:22,187 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 01:07:22,187 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-24 01:07:22,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 01:07:22,187 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 01:07:22,187 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 01:07:22,188 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 01:07:22,188 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 01:07:22,188 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_5829ddd7-aace-4754-88fa-04c461ae38ff/bin/uautomizer-verify-LYvppIcaGC
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 valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
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 -> e028c51cfa02b345902e1292d1a644c7ee4a15183825ee6e2ec2fc316df147e6
[2024-11-24 01:07:22,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 01:07:22,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 01:07:22,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 01:07:22,597 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 01:07:22,598 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 01:07:22,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5829ddd7-aace-4754-88fa-04c461ae38ff/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i
[2024-11-24 01:07:25,839 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5829ddd7-aace-4754-88fa-04c461ae38ff/bin/uautomizer-verify-LYvppIcaGC/data/7304f1784/b16c1d8118a44f00b4e46d5c1f9ee70d/FLAGc98c68c11
[2024-11-24 01:07:26,359 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 01:07:26,360 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5829ddd7-aace-4754-88fa-04c461ae38ff/sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i
[2024-11-24 01:07:26,392 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5829ddd7-aace-4754-88fa-04c461ae38ff/bin/uautomizer-verify-LYvppIcaGC/data/7304f1784/b16c1d8118a44f00b4e46d5c1f9ee70d/FLAGc98c68c11
[2024-11-24 01:07:26,421 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5829ddd7-aace-4754-88fa-04c461ae38ff/bin/uautomizer-verify-LYvppIcaGC/data/7304f1784/b16c1d8118a44f00b4e46d5c1f9ee70d
[2024-11-24 01:07:26,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 01:07:26,427 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 01:07:26,429 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 01:07:26,430 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 01:07:26,436 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 01:07:26,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:07:26" (1/1) ...
[2024-11-24 01:07:26,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c01cdec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:26, skipping insertion in model container
[2024-11-24 01:07:26,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:07:26" (1/1) ...
[2024-11-24 01:07:26,491 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 01:07:26,893 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:07:26,910 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 01:07:26,966 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 01:07:26,998 INFO L204 MainTranslator]: Completed translation
[2024-11-24 01:07:27,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:27 WrapperNode
[2024-11-24 01:07:27,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 01:07:27,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 01:07:27,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 01:07:27,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 01:07:27,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:27" (1/1) ...
[2024-11-24 01:07:27,031 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:27" (1/1) ...
[2024-11-24 01:07:27,066 INFO L138 Inliner]: procedures = 111, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 97
[2024-11-24 01:07:27,066 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 01:07:27,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 01:07:27,069 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 01:07:27,069 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 01:07:27,082 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:27" (1/1) ...
[2024-11-24 01:07:27,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:27" (1/1) ...
[2024-11-24 01:07:27,087 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:27" (1/1) ...
[2024-11-24 01:07:27,117 INFO L175 MemorySlicer]: Split 15 memory accesses to 4 slices as follows [5, 7, 1, 2]. 47 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0, 0, 0]. The 6 writes are split as follows [2, 2, 1, 1].
[2024-11-24 01:07:27,121 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:27" (1/1) ...
[2024-11-24 01:07:27,121 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:27" (1/1) ...
[2024-11-24 01:07:27,133 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:27" (1/1) ...
[2024-11-24 01:07:27,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:27" (1/1) ...
[2024-11-24 01:07:27,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:27" (1/1) ...
[2024-11-24 01:07:27,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:27" (1/1) ...
[2024-11-24 01:07:27,145 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:27" (1/1) ...
[2024-11-24 01:07:27,148 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 01:07:27,149 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 01:07:27,149 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 01:07:27,149 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 01:07:27,150 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:27" (1/1) ...
[2024-11-24 01:07:27,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 01:07:27,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5829ddd7-aace-4754-88fa-04c461ae38ff/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 01:07:27,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5829ddd7-aace-4754-88fa-04c461ae38ff/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 01:07:27,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5829ddd7-aace-4754-88fa-04c461ae38ff/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 01:07:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-24 01:07:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-24 01:07:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-24 01:07:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3
[2024-11-24 01:07:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-24 01:07:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-24 01:07:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-24 01:07:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2024-11-24 01:07:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-24 01:07:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-24 01:07:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 01:07:27,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 01:07:27,385 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 01:07:27,388 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 01:07:27,763 INFO L? ?]: Removed 70 outVars from TransFormulas that were not future-live.
[2024-11-24 01:07:27,767 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 01:07:27,791 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 01:07:27,792 INFO L312 CfgBuilder]: Removed 2 assume(true) statements.
[2024-11-24 01:07:27,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:07:27 BoogieIcfgContainer
[2024-11-24 01:07:27,793 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 01:07:27,797 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 01:07:27,798 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 01:07:27,804 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 01:07:27,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:07:26" (1/3) ...
[2024-11-24 01:07:27,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623b9b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:07:27, skipping insertion in model container
[2024-11-24 01:07:27,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:27" (2/3) ...
[2024-11-24 01:07:27,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623b9b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:07:27, skipping insertion in model container
[2024-11-24 01:07:27,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:07:27" (3/3) ...
[2024-11-24 01:07:27,808 INFO L128 eAbstractionObserver]: Analyzing ICFG twisted-alloca.i
[2024-11-24 01:07:27,828 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 01:07:27,831 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG twisted-alloca.i that has 1 procedures, 63 locations, 1 initial locations, 2 loop locations, and 31 error locations.
[2024-11-24 01:07:27,888 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 01:07:27,912 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=None, 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;@2c67057, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 01:07:27,912 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations.
[2024-11-24 01:07:27,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 31 states have (on average 2.193548387096774) internal successors, (68), 62 states have internal predecessors, (68), 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)
[2024-11-24 01:07:27,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-11-24 01:07:27,925 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:07:27,925 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-11-24 01:07:27,926 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] ===
[2024-11-24 01:07:27,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:07:27,934 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times
[2024-11-24 01:07:27,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:07:27,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160495076]
[2024-11-24 01:07:27,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:07:27,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:07:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:07:28,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:07:28,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:07:28,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160495076]
[2024-11-24 01:07:28,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160495076] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:07:28,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:07:28,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:07:28,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456381148]
[2024-11-24 01:07:28,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:07:28,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:07:28,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:07:28,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:07:28,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:28,463 INFO L87 Difference]: Start difference. First operand has 63 states, 31 states have (on average 2.193548387096774) internal successors, (68), 62 states have internal predecessors, (68), 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 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2024-11-24 01:07:28,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:07:28,581 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions.
[2024-11-24 01:07:28,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:07:28,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3
[2024-11-24 01:07:28,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:07:28,594 INFO L225 Difference]: With dead ends: 61
[2024-11-24 01:07:28,594 INFO L226 Difference]: Without dead ends: 59
[2024-11-24 01:07:28,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:28,603 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 55 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:07:28,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 34 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 01:07:28,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states.
[2024-11-24 01:07:28,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59.
[2024-11-24 01:07:28,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 30 states have (on average 2.066666666666667) internal successors, (62), 58 states have internal predecessors, (62), 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)
[2024-11-24 01:07:28,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions.
[2024-11-24 01:07:28,643 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 3
[2024-11-24 01:07:28,643 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:07:28,644 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions.
[2024-11-24 01:07:28,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2024-11-24 01:07:28,644 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions.
[2024-11-24 01:07:28,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-11-24 01:07:28,644 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:07:28,644 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-11-24 01:07:28,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-24 01:07:28,645 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] ===
[2024-11-24 01:07:28,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:07:28,646 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times
[2024-11-24 01:07:28,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:07:28,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992625597]
[2024-11-24 01:07:28,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:07:28,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:07:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:07:29,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:07:29,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:07:29,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992625597]
[2024-11-24 01:07:29,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992625597] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:07:29,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:07:29,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:07:29,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338823367]
[2024-11-24 01:07:29,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:07:29,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:07:29,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:07:29,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:07:29,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:29,022 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2024-11-24 01:07:29,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:07:29,138 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions.
[2024-11-24 01:07:29,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:07:29,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3
[2024-11-24 01:07:29,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:07:29,139 INFO L225 Difference]: With dead ends: 57
[2024-11-24 01:07:29,139 INFO L226 Difference]: Without dead ends: 57
[2024-11-24 01:07:29,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:29,141 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 56 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:07:29,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 34 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 01:07:29,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2024-11-24 01:07:29,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57.
[2024-11-24 01:07:29,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 30 states have (on average 2.0) internal successors, (60), 56 states have internal predecessors, (60), 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)
[2024-11-24 01:07:29,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions.
[2024-11-24 01:07:29,152 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 3
[2024-11-24 01:07:29,152 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:07:29,152 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions.
[2024-11-24 01:07:29,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2024-11-24 01:07:29,153 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions.
[2024-11-24 01:07:29,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-11-24 01:07:29,155 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:07:29,155 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-11-24 01:07:29,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-24 01:07:29,156 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] ===
[2024-11-24 01:07:29,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:07:29,158 INFO L85 PathProgramCache]: Analyzing trace with hash 925543, now seen corresponding path program 1 times
[2024-11-24 01:07:29,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:07:29,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903598794]
[2024-11-24 01:07:29,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:07:29,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:07:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:07:29,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:07:29,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:07:29,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903598794]
[2024-11-24 01:07:29,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903598794] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:07:29,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:07:29,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:07:29,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189624848]
[2024-11-24 01:07:29,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:07:29,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:07:29,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:07:29,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:07:29,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:29,345 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:07:29,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:07:29,454 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions.
[2024-11-24 01:07:29,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:07:29,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4
[2024-11-24 01:07:29,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:07:29,456 INFO L225 Difference]: With dead ends: 56
[2024-11-24 01:07:29,458 INFO L226 Difference]: Without dead ends: 56
[2024-11-24 01:07:29,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:29,460 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:07:29,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 01:07:29,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2024-11-24 01:07:29,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56.
[2024-11-24 01:07:29,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 30 states have (on average 1.9666666666666666) internal successors, (59), 55 states have internal predecessors, (59), 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)
[2024-11-24 01:07:29,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions.
[2024-11-24 01:07:29,472 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 4
[2024-11-24 01:07:29,472 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:07:29,472 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions.
[2024-11-24 01:07:29,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:07:29,473 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions.
[2024-11-24 01:07:29,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-11-24 01:07:29,473 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:07:29,473 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-11-24 01:07:29,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-24 01:07:29,474 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] ===
[2024-11-24 01:07:29,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:07:29,476 INFO L85 PathProgramCache]: Analyzing trace with hash 925544, now seen corresponding path program 1 times
[2024-11-24 01:07:29,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:07:29,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176627771]
[2024-11-24 01:07:29,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:07:29,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:07:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:07:29,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:07:29,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:07:29,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176627771]
[2024-11-24 01:07:29,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176627771] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:07:29,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:07:29,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:07:29,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657261095]
[2024-11-24 01:07:29,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:07:29,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:07:29,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:07:29,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:07:29,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:29,700 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:07:29,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:07:29,802 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions.
[2024-11-24 01:07:29,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:07:29,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4
[2024-11-24 01:07:29,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:07:29,804 INFO L225 Difference]: With dead ends: 55
[2024-11-24 01:07:29,805 INFO L226 Difference]: Without dead ends: 55
[2024-11-24 01:07:29,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:29,807 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:07:29,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 01:07:29,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states.
[2024-11-24 01:07:29,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55.
[2024-11-24 01:07:29,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 30 states have (on average 1.9333333333333333) internal successors, (58), 54 states have internal predecessors, (58), 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)
[2024-11-24 01:07:29,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions.
[2024-11-24 01:07:29,815 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 4
[2024-11-24 01:07:29,815 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:07:29,816 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions.
[2024-11-24 01:07:29,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:07:29,820 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions.
[2024-11-24 01:07:29,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2024-11-24 01:07:29,821 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:07:29,821 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2024-11-24 01:07:29,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-24 01:07:29,822 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] ===
[2024-11-24 01:07:29,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:07:29,823 INFO L85 PathProgramCache]: Analyzing trace with hash 28691812, now seen corresponding path program 1 times
[2024-11-24 01:07:29,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:07:29,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28981183]
[2024-11-24 01:07:29,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:07:29,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:07:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:07:29,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:07:29,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:07:29,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28981183]
[2024-11-24 01:07:29,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28981183] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:07:29,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:07:29,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:07:29,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066956039]
[2024-11-24 01:07:29,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:07:29,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:07:29,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:07:29,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:07:29,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:29,943 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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)
[2024-11-24 01:07:30,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:07:30,052 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions.
[2024-11-24 01:07:30,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:07:30,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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
[2024-11-24 01:07:30,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:07:30,053 INFO L225 Difference]: With dead ends: 48
[2024-11-24 01:07:30,054 INFO L226 Difference]: Without dead ends: 48
[2024-11-24 01:07:30,054 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:30,055 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 33 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:07:30,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 27 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 01:07:30,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states.
[2024-11-24 01:07:30,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48.
[2024-11-24 01:07:30,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 30 states have (on average 1.7) internal successors, (51), 47 states have internal predecessors, (51), 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)
[2024-11-24 01:07:30,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions.
[2024-11-24 01:07:30,066 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 5
[2024-11-24 01:07:30,066 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:07:30,066 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions.
[2024-11-24 01:07:30,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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)
[2024-11-24 01:07:30,067 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions.
[2024-11-24 01:07:30,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2024-11-24 01:07:30,068 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:07:30,069 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2024-11-24 01:07:30,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-24 01:07:30,069 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] ===
[2024-11-24 01:07:30,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:07:30,070 INFO L85 PathProgramCache]: Analyzing trace with hash 28691813, now seen corresponding path program 1 times
[2024-11-24 01:07:30,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:07:30,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727065946]
[2024-11-24 01:07:30,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:07:30,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:07:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:07:30,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:07:30,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:07:30,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727065946]
[2024-11-24 01:07:30,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727065946] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:07:30,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:07:30,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:07:30,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930688411]
[2024-11-24 01:07:30,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:07:30,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:07:30,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:07:30,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:07:30,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:30,241 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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)
[2024-11-24 01:07:30,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:07:30,312 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions.
[2024-11-24 01:07:30,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:07:30,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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
[2024-11-24 01:07:30,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:07:30,314 INFO L225 Difference]: With dead ends: 41
[2024-11-24 01:07:30,317 INFO L226 Difference]: Without dead ends: 41
[2024-11-24 01:07:30,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:30,318 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 33 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:07:30,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 30 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 01:07:30,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2024-11-24 01:07:30,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41.
[2024-11-24 01:07:30,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 40 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)
[2024-11-24 01:07:30,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions.
[2024-11-24 01:07:30,327 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 5
[2024-11-24 01:07:30,328 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:07:30,328 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions.
[2024-11-24 01:07:30,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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)
[2024-11-24 01:07:30,328 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions.
[2024-11-24 01:07:30,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-24 01:07:30,330 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:07:30,330 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-24 01:07:30,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-24 01:07:30,331 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] ===
[2024-11-24 01:07:30,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:07:30,331 INFO L85 PathProgramCache]: Analyzing trace with hash 889446154, now seen corresponding path program 1 times
[2024-11-24 01:07:30,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:07:30,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551024849]
[2024-11-24 01:07:30,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:07:30,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:07:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:07:30,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:07:30,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:07:30,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551024849]
[2024-11-24 01:07:30,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551024849] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:07:30,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:07:30,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:07:30,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013409037]
[2024-11-24 01:07:30,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:07:30,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:07:30,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:07:30,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:07:30,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:30,404 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-24 01:07:30,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:07:30,482 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions.
[2024-11-24 01:07:30,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:07:30,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6
[2024-11-24 01:07:30,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:07:30,484 INFO L225 Difference]: With dead ends: 36
[2024-11-24 01:07:30,484 INFO L226 Difference]: Without dead ends: 36
[2024-11-24 01:07:30,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:30,485 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:07:30,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 19 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 01:07:30,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2024-11-24 01:07:30,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36.
[2024-11-24 01:07:30,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 01:07:30,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions.
[2024-11-24 01:07:30,493 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 6
[2024-11-24 01:07:30,493 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:07:30,493 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions.
[2024-11-24 01:07:30,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-24 01:07:30,494 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions.
[2024-11-24 01:07:30,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-24 01:07:30,494 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:07:30,495 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-24 01:07:30,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-24 01:07:30,496 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] ===
[2024-11-24 01:07:30,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:07:30,496 INFO L85 PathProgramCache]: Analyzing trace with hash 889446155, now seen corresponding path program 1 times
[2024-11-24 01:07:30,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:07:30,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816721657]
[2024-11-24 01:07:30,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:07:30,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:07:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:07:30,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:07:30,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:07:30,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816721657]
[2024-11-24 01:07:30,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816721657] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:07:30,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:07:30,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 01:07:30,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169430886]
[2024-11-24 01:07:30,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:07:30,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 01:07:30,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:07:30,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 01:07:30,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:30,621 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-24 01:07:30,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:07:30,674 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions.
[2024-11-24 01:07:30,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-24 01:07:30,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6
[2024-11-24 01:07:30,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:07:30,675 INFO L225 Difference]: With dead ends: 31
[2024-11-24 01:07:30,675 INFO L226 Difference]: Without dead ends: 31
[2024-11-24 01:07:30,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 01:07:30,677 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 25 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:07:30,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 22 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:07:30,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2024-11-24 01:07:30,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31.
[2024-11-24 01:07:30,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 30 states have internal predecessors, (34), 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)
[2024-11-24 01:07:30,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions.
[2024-11-24 01:07:30,680 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 6
[2024-11-24 01:07:30,680 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:07:30,680 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions.
[2024-11-24 01:07:30,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-24 01:07:30,680 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions.
[2024-11-24 01:07:30,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2024-11-24 01:07:30,681 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:07:30,681 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:07:30,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-24 01:07:30,681 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] ===
[2024-11-24 01:07:30,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:07:30,685 INFO L85 PathProgramCache]: Analyzing trace with hash 666296844, now seen corresponding path program 1 times
[2024-11-24 01:07:30,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:07:30,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622964644]
[2024-11-24 01:07:30,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:07:30,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:07:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:07:30,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 01:07:30,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:07:30,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622964644]
[2024-11-24 01:07:30,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622964644] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:07:30,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:07:30,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 01:07:30,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561455108]
[2024-11-24 01:07:30,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:07:30,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:07:30,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:07:30,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:07:30,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:07:30,891 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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)
[2024-11-24 01:07:30,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:07:30,944 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions.
[2024-11-24 01:07:30,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:07:30,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 18
[2024-11-24 01:07:30,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:07:30,946 INFO L225 Difference]: With dead ends: 47
[2024-11-24 01:07:30,946 INFO L226 Difference]: Without dead ends: 47
[2024-11-24 01:07:30,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-24 01:07:30,947 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 12 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 01:07:30,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 84 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 01:07:30,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2024-11-24 01:07:30,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44.
[2024-11-24 01:07:30,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 43 states have internal predecessors, (49), 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)
[2024-11-24 01:07:30,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions.
[2024-11-24 01:07:30,957 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 18
[2024-11-24 01:07:30,958 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:07:30,958 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions.
[2024-11-24 01:07:30,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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)
[2024-11-24 01:07:30,958 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions.
[2024-11-24 01:07:30,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-24 01:07:30,959 INFO L210 NwaCegarLoop]: Found error trace
[2024-11-24 01:07:30,959 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:07:30,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-24 01:07:30,963 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] ===
[2024-11-24 01:07:30,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 01:07:30,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1127529060, now seen corresponding path program 1 times
[2024-11-24 01:07:30,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 01:07:30,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024765667]
[2024-11-24 01:07:30,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 01:07:30,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 01:07:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 01:07:31,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-24 01:07:31,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 01:07:31,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024765667]
[2024-11-24 01:07:31,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024765667] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 01:07:31,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 01:07:31,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 01:07:31,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463840446]
[2024-11-24 01:07:31,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 01:07:31,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 01:07:31,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 01:07:31,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 01:07:31,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:07:31,986 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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)
[2024-11-24 01:07:32,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 01:07:32,071 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions.
[2024-11-24 01:07:32,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 01:07:32,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 26
[2024-11-24 01:07:32,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 01:07:32,072 INFO L225 Difference]: With dead ends: 43
[2024-11-24 01:07:32,072 INFO L226 Difference]: Without dead ends: 0
[2024-11-24 01:07:32,073 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 01:07:32,073 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 9 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 01:07:32,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 31 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 01:07:32,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-24 01:07:32,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-24 01:07:32,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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)
[2024-11-24 01:07:32,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-24 01:07:32,076 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26
[2024-11-24 01:07:32,076 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-24 01:07:32,077 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-24 01:07:32,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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)
[2024-11-24 01:07:32,077 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-24 01:07:32,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-24 01:07:32,081 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 31 remaining)
[2024-11-24 01:07:32,081 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 31 remaining)
[2024-11-24 01:07:32,082 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 31 remaining)
[2024-11-24 01:07:32,082 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 31 remaining)
[2024-11-24 01:07:32,082 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 31 remaining)
[2024-11-24 01:07:32,082 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 31 remaining)
[2024-11-24 01:07:32,082 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 31 remaining)
[2024-11-24 01:07:32,082 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 31 remaining)
[2024-11-24 01:07:32,082 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 31 remaining)
[2024-11-24 01:07:32,082 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 31 remaining)
[2024-11-24 01:07:32,082 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 31 remaining)
[2024-11-24 01:07:32,083 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 31 remaining)
[2024-11-24 01:07:32,083 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 31 remaining)
[2024-11-24 01:07:32,083 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 31 remaining)
[2024-11-24 01:07:32,085 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 31 remaining)
[2024-11-24 01:07:32,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 31 remaining)
[2024-11-24 01:07:32,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 31 remaining)
[2024-11-24 01:07:32,087 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 31 remaining)
[2024-11-24 01:07:32,087 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 31 remaining)
[2024-11-24 01:07:32,087 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 31 remaining)
[2024-11-24 01:07:32,087 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 31 remaining)
[2024-11-24 01:07:32,087 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 31 remaining)
[2024-11-24 01:07:32,088 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 31 remaining)
[2024-11-24 01:07:32,088 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 31 remaining)
[2024-11-24 01:07:32,088 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 31 remaining)
[2024-11-24 01:07:32,088 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 31 remaining)
[2024-11-24 01:07:32,088 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 31 remaining)
[2024-11-24 01:07:32,088 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 31 remaining)
[2024-11-24 01:07:32,089 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 31 remaining)
[2024-11-24 01:07:32,089 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 31 remaining)
[2024-11-24 01:07:32,089 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (0 of 31 remaining)
[2024-11-24 01:07:32,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-24 01:07:32,095 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 01:07:32,098 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-24 01:07:32,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:07:32 BoogieIcfgContainer
[2024-11-24 01:07:32,103 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-24 01:07:32,105 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-24 01:07:32,106 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-24 01:07:32,106 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-24 01:07:32,107 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:07:27" (3/4) ...
[2024-11-24 01:07:32,110 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-11-24 01:07:32,125 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges
[2024-11-24 01:07:32,126 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2024-11-24 01:07:32,127 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2024-11-24 01:07:32,127 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-24 01:07:32,250 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5829ddd7-aace-4754-88fa-04c461ae38ff/bin/uautomizer-verify-LYvppIcaGC/witness.graphml
[2024-11-24 01:07:32,250 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5829ddd7-aace-4754-88fa-04c461ae38ff/bin/uautomizer-verify-LYvppIcaGC/witness.yml
[2024-11-24 01:07:32,250 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-24 01:07:32,252 INFO L158 Benchmark]: Toolchain (without parser) took 5825.02ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 117.5MB in the beginning and 341.5MB in the end (delta: -224.0MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB.
[2024-11-24 01:07:32,253 INFO L158 Benchmark]: CDTParser took 1.44ms. Allocated memory is still 142.6MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:07:32,253 INFO L158 Benchmark]: CACSL2BoogieTranslator took 572.63ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 101.0MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-24 01:07:32,254 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.71ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 99.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:07:32,254 INFO L158 Benchmark]: Boogie Preprocessor took 79.47ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 97.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:07:32,254 INFO L158 Benchmark]: RCFGBuilder took 644.14ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 80.3MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-24 01:07:32,256 INFO L158 Benchmark]: TraceAbstraction took 4305.80ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 79.9MB in the beginning and 346.0MB in the end (delta: -266.2MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB.
[2024-11-24 01:07:32,256 INFO L158 Benchmark]: Witness Printer took 145.85ms. Allocated memory is still 427.8MB. Free memory was 346.0MB in the beginning and 341.5MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 01:07:32,258 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.44ms. Allocated memory is still 142.6MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 572.63ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 101.0MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 63.71ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 99.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 79.47ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 97.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 644.14ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 80.3MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 4305.80ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 79.9MB in the beginning and 346.0MB in the end (delta: -266.2MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB.
* Witness Printer took 145.85ms. Allocated memory is still 427.8MB. Free memory was 346.0MB in the beginning and 341.5MB in the end (delta: 4.5MB). 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
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 573]: all allocated memory was freed
For all program executions holds that all allocated memory was freed at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 63 locations, 31 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 248 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 248 mSDsluCounter, 448 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 134 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 291 IncrementalHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 314 mSDtfsCounter, 291 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 1090 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 2/2 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
- AllSpecificationsHoldResult: All specifications hold
31 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-11-24 01:07:32,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5829ddd7-aace-4754-88fa-04c461ae38ff/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE