./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu --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 32bit --witnessprinter.graph.data.programhash 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:45:05,594 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:45:05,667 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2023-11-19 07:45:05,672 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:45:05,673 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:45:05,697 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:45:05,698 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:45:05,699 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:45:05,700 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:45:05,701 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:45:05,702 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:45:05,702 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:45:05,703 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:45:05,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:45:05,704 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:45:05,705 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:45:05,706 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:45:05,706 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:45:05,707 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2023-11-19 07:45:05,708 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2023-11-19 07:45:05,708 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2023-11-19 07:45:05,709 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:45:05,710 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-19 07:45:05,710 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:45:05,711 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:45:05,712 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:45:05,712 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:45:05,713 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:45:05,713 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:45:05,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:45:05,714 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:45:05,715 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:45:05,715 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:45:05,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:45:05,716 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:45:05,716 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:45:05,716 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:45:05,717 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:45:05,717 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e
[2023-11-19 07:45:06,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:45:06,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:45:06,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:45:06,068 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:45:06,069 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:45:06,070 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i
[2023-11-19 07:45:09,284 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:45:09,590 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:45:09,590 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i
[2023-11-19 07:45:09,609 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/data/4dfa22894/2bafac7f8d2d46c284718b9502e27f76/FLAG9fde74240
[2023-11-19 07:45:09,867 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/data/4dfa22894/2bafac7f8d2d46c284718b9502e27f76
[2023-11-19 07:45:09,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:45:09,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:45:09,872 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:45:09,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:45:09,878 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:45:09,878 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:09" (1/1) ...
[2023-11-19 07:45:09,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@556b5649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:09, skipping insertion in model container
[2023-11-19 07:45:09,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:09" (1/1) ...
[2023-11-19 07:45:09,943 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:45:10,524 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:45:10,560 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:45:10,631 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:45:10,718 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:45:10,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:10 WrapperNode
[2023-11-19 07:45:10,719 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:45:10,720 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:45:10,720 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:45:10,721 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:45:10,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:10" (1/1) ...
[2023-11-19 07:45:10,759 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:10" (1/1) ...
[2023-11-19 07:45:10,826 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66
[2023-11-19 07:45:10,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:45:10,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:45:10,828 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:45:10,828 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:45:10,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:10" (1/1) ...
[2023-11-19 07:45:10,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:10" (1/1) ...
[2023-11-19 07:45:10,853 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:10" (1/1) ...
[2023-11-19 07:45:10,853 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:10" (1/1) ...
[2023-11-19 07:45:10,865 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:10" (1/1) ...
[2023-11-19 07:45:10,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:10" (1/1) ...
[2023-11-19 07:45:10,888 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:10" (1/1) ...
[2023-11-19 07:45:10,889 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:10" (1/1) ...
[2023-11-19 07:45:10,892 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:45:10,893 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:45:10,894 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:45:10,894 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:45:10,895 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:10" (1/1) ...
[2023-11-19 07:45:10,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:45:10,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:45:10,929 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:45:10,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:45:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:45:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:45:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-11-19 07:45:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-11-19 07:45:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-11-19 07:45:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:45:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun
[2023-11-19 07:45:10,977 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun
[2023-11-19 07:45:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:45:10,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:45:10,979 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-11-19 07:45:11,127 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:45:11,130 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:45:11,322 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:45:11,342 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:45:11,342 INFO L302 CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-19 07:45:11,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:11 BoogieIcfgContainer
[2023-11-19 07:45:11,348 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:45:11,352 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:45:11,353 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:45:11,356 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:45:11,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:45:09" (1/3) ...
[2023-11-19 07:45:11,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19cc51dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:11, skipping insertion in model container
[2023-11-19 07:45:11,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:10" (2/3) ...
[2023-11-19 07:45:11,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19cc51dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:11, skipping insertion in model container
[2023-11-19 07:45:11,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:11" (3/3) ...
[2023-11-19 07:45:11,361 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i
[2023-11-19 07:45:11,382 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:45:11,383 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations.
[2023-11-19 07:45:11,383 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-11-19 07:45:11,508 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-11-19 07:45:11,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 88 transitions, 180 flow
[2023-11-19 07:45:11,596 INFO L124 PetriNetUnfolderBase]: 4/87 cut-off events.
[2023-11-19 07:45:11,596 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:45:11,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 87 events. 4/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 94 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place.
[2023-11-19 07:45:11,601 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 88 transitions, 180 flow
[2023-11-19 07:45:11,606 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 87 transitions, 177 flow
[2023-11-19 07:45:11,610 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 07:45:11,621 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 87 transitions, 177 flow
[2023-11-19 07:45:11,624 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 87 transitions, 177 flow
[2023-11-19 07:45:11,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 87 transitions, 177 flow
[2023-11-19 07:45:11,652 INFO L124 PetriNetUnfolderBase]: 4/87 cut-off events.
[2023-11-19 07:45:11,652 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:45:11,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 87 events. 4/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 95 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place.
[2023-11-19 07:45:11,655 INFO L119 LiptonReduction]: Number of co-enabled transitions 1288
[2023-11-19 07:45:14,107 INFO L134 LiptonReduction]: Checked pairs total: 2375
[2023-11-19 07:45:14,108 INFO L136 LiptonReduction]: Total number of compositions: 93
[2023-11-19 07:45:14,124 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:45:14,131 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@707fe7b2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:45:14,132 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations.
[2023-11-19 07:45:14,133 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 07:45:14,134 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events.
[2023-11-19 07:45:14,134 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:45:14,134 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:14,135 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-11-19 07:45:14,135 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:45:14,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:14,141 INFO L85 PathProgramCache]: Analyzing trace with hash 10700, now seen corresponding path program 1 times
[2023-11-19 07:45:14,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:14,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54005325]
[2023-11-19 07:45:14,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:14,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:14,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:14,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:14,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54005325]
[2023-11-19 07:45:14,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54005325] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:14,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:45:14,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:45:14,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020268823]
[2023-11-19 07:45:14,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:14,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 07:45:14,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:14,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 07:45:14,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 07:45:14,370 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 181
[2023-11-19 07:45:14,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 24 transitions, 51 flow. Second operand has 2 states, 2 states have (on average 85.0) internal successors, (170), 2 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:14,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:14,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 181
[2023-11-19 07:45:14,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:14,477 INFO L124 PetriNetUnfolderBase]: 41/99 cut-off events.
[2023-11-19 07:45:14,477 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:45:14,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 99 events. 41/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 357 event pairs, 40 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 188. Up to 98 conditions per place.
[2023-11-19 07:45:14,481 INFO L140 encePairwiseOnDemand]: 176/181 looper letters, 17 selfloop transitions, 0 changer transitions 0/19 dead transitions.
[2023-11-19 07:45:14,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 19 transitions, 75 flow
[2023-11-19 07:45:14,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 07:45:14,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-11-19 07:45:14,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 190 transitions.
[2023-11-19 07:45:14,499 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5248618784530387
[2023-11-19 07:45:14,500 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 190 transitions.
[2023-11-19 07:45:14,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 190 transitions.
[2023-11-19 07:45:14,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:14,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 190 transitions.
[2023-11-19 07:45:14,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 95.0) internal successors, (190), 2 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:14,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:14,520 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:14,521 INFO L175 Difference]: Start difference. First operand has 27 places, 24 transitions, 51 flow. Second operand 2 states and 190 transitions.
[2023-11-19 07:45:14,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 19 transitions, 75 flow
[2023-11-19 07:45:14,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 19 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-19 07:45:14,527 INFO L231 Difference]: Finished difference. Result has 22 places, 19 transitions, 40 flow
[2023-11-19 07:45:14,529 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=22, PETRI_TRANSITIONS=19}
[2023-11-19 07:45:14,533 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -5 predicate places.
[2023-11-19 07:45:14,533 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 19 transitions, 40 flow
[2023-11-19 07:45:14,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 85.0) internal successors, (170), 2 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:14,534 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:14,534 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-11-19 07:45:14,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:45:14,536 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:45:14,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:14,537 INFO L85 PathProgramCache]: Analyzing trace with hash 10287970, now seen corresponding path program 1 times
[2023-11-19 07:45:14,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:14,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029429178]
[2023-11-19 07:45:14,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:14,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:14,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:14,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:14,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029429178]
[2023-11-19 07:45:14,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029429178] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:14,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:45:14,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:45:14,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284820462]
[2023-11-19 07:45:14,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:14,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:45:14,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:14,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:45:14,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:45:14,675 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 181
[2023-11-19 07:45:14,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 19 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:14,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:14,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 181
[2023-11-19 07:45:14,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:14,732 INFO L124 PetriNetUnfolderBase]: 41/100 cut-off events.
[2023-11-19 07:45:14,732 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:45:14,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 100 events. 41/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 357 event pairs, 40 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 200. Up to 98 conditions per place.
[2023-11-19 07:45:14,734 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 16 selfloop transitions, 2 changer transitions 0/20 dead transitions.
[2023-11-19 07:45:14,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 20 transitions, 78 flow
[2023-11-19 07:45:14,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:45:14,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:45:14,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions.
[2023-11-19 07:45:14,737 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46593001841620624
[2023-11-19 07:45:14,737 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 253 transitions.
[2023-11-19 07:45:14,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 253 transitions.
[2023-11-19 07:45:14,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:14,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 253 transitions.
[2023-11-19 07:45:14,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:14,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:14,749 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:14,749 INFO L175 Difference]: Start difference. First operand has 22 places, 19 transitions, 40 flow. Second operand 3 states and 253 transitions.
[2023-11-19 07:45:14,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 20 transitions, 78 flow
[2023-11-19 07:45:14,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 78 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:45:14,751 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 52 flow
[2023-11-19 07:45:14,751 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=25, PETRI_TRANSITIONS=20}
[2023-11-19 07:45:14,752 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places.
[2023-11-19 07:45:14,753 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 52 flow
[2023-11-19 07:45:14,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:14,757 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:14,757 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2023-11-19 07:45:14,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-19 07:45:14,758 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:45:14,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:14,759 INFO L85 PathProgramCache]: Analyzing trace with hash 318207746, now seen corresponding path program 1 times
[2023-11-19 07:45:14,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:14,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266100256]
[2023-11-19 07:45:14,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:14,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:14,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:14,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:14,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:14,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266100256]
[2023-11-19 07:45:14,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266100256] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:45:14,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481572732]
[2023-11-19 07:45:14,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:14,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:14,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:45:14,903 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:45:14,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-19 07:45:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:14,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-19 07:45:14,990 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:45:15,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:15,025 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:45:15,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:15,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481572732] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:45:15,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-19 07:45:15,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5
[2023-11-19 07:45:15,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820409281]
[2023-11-19 07:45:15,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:45:15,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:45:15,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:15,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:45:15,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:45:15,066 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 181
[2023-11-19 07:45:15,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 52 flow. Second operand has 6 states, 6 states have (on average 78.33333333333333) internal successors, (470), 6 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:15,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:15,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 181
[2023-11-19 07:45:15,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:15,131 INFO L124 PetriNetUnfolderBase]: 41/103 cut-off events.
[2023-11-19 07:45:15,131 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:45:15,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 103 events. 41/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 357 event pairs, 40 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 214. Up to 98 conditions per place.
[2023-11-19 07:45:15,132 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 16 selfloop transitions, 5 changer transitions 0/23 dead transitions.
[2023-11-19 07:45:15,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 23 transitions, 106 flow
[2023-11-19 07:45:15,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-19 07:45:15,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-11-19 07:45:15,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 486 transitions.
[2023-11-19 07:45:15,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44751381215469616
[2023-11-19 07:45:15,136 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 486 transitions.
[2023-11-19 07:45:15,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 486 transitions.
[2023-11-19 07:45:15,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:15,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 486 transitions.
[2023-11-19 07:45:15,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:15,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:15,143 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:15,143 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 52 flow. Second operand 6 states and 486 transitions.
[2023-11-19 07:45:15,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 23 transitions, 106 flow
[2023-11-19 07:45:15,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 23 transitions, 102 flow, removed 1 selfloop flow, removed 1 redundant places.
[2023-11-19 07:45:15,145 INFO L231 Difference]: Finished difference. Result has 32 places, 23 transitions, 84 flow
[2023-11-19 07:45:15,145 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=84, PETRI_PLACES=32, PETRI_TRANSITIONS=23}
[2023-11-19 07:45:15,146 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places.
[2023-11-19 07:45:15,146 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 84 flow
[2023-11-19 07:45:15,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.33333333333333) internal successors, (470), 6 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:15,147 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:15,147 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1]
[2023-11-19 07:45:15,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2023-11-19 07:45:15,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:15,368 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:45:15,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:15,369 INFO L85 PathProgramCache]: Analyzing trace with hash 19850082, now seen corresponding path program 2 times
[2023-11-19 07:45:15,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:15,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036429468]
[2023-11-19 07:45:15,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:15,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:15,542 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:15,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:15,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036429468]
[2023-11-19 07:45:15,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036429468] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:45:15,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514868085]
[2023-11-19 07:45:15,543 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-11-19 07:45:15,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:15,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:45:15,545 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:45:15,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-19 07:45:15,621 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2023-11-19 07:45:15,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-11-19 07:45:15,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 14 conjunts are in the unsatisfiable core
[2023-11-19 07:45:15,624 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:45:15,740 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-19 07:45:15,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2023-11-19 07:45:15,770 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2023-11-19 07:45:15,771 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:45:15,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514868085] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:15,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-19 07:45:15,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8
[2023-11-19 07:45:15,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739350965]
[2023-11-19 07:45:15,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:15,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:45:15,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:15,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:45:15,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72
[2023-11-19 07:45:15,865 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 181
[2023-11-19 07:45:15,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:15,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:15,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 181
[2023-11-19 07:45:15,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:15,919 INFO L124 PetriNetUnfolderBase]: 33/86 cut-off events.
[2023-11-19 07:45:15,919 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-11-19 07:45:15,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 86 events. 33/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 286 event pairs, 32 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 190. Up to 84 conditions per place.
[2023-11-19 07:45:15,921 INFO L140 encePairwiseOnDemand]: 179/181 looper letters, 19 selfloop transitions, 1 changer transitions 0/22 dead transitions.
[2023-11-19 07:45:15,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 22 transitions, 122 flow
[2023-11-19 07:45:15,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:45:15,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:45:15,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions.
[2023-11-19 07:45:15,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4843462246777164
[2023-11-19 07:45:15,923 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 263 transitions.
[2023-11-19 07:45:15,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 263 transitions.
[2023-11-19 07:45:15,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:15,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 263 transitions.
[2023-11-19 07:45:15,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:15,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:15,927 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:15,927 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 84 flow. Second operand 3 states and 263 transitions.
[2023-11-19 07:45:15,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 22 transitions, 122 flow
[2023-11-19 07:45:15,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 22 transitions, 108 flow, removed 6 selfloop flow, removed 1 redundant places.
[2023-11-19 07:45:15,936 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 70 flow
[2023-11-19 07:45:15,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=32, PETRI_TRANSITIONS=22}
[2023-11-19 07:45:15,938 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places.
[2023-11-19 07:45:15,938 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 70 flow
[2023-11-19 07:45:15,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:15,939 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:15,939 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1]
[2023-11-19 07:45:15,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-11-19 07:45:16,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:16,160 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:45:16,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:16,160 INFO L85 PathProgramCache]: Analyzing trace with hash 19850066, now seen corresponding path program 1 times
[2023-11-19 07:45:16,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:16,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539117177]
[2023-11-19 07:45:16,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:16,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:16,315 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:16,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:16,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539117177]
[2023-11-19 07:45:16,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539117177] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:45:16,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630261845]
[2023-11-19 07:45:16,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:16,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:16,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:45:16,324 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:45:16,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-19 07:45:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:16,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-19 07:45:16,404 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:45:16,419 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:16,420 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:45:16,483 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:16,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630261845] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:45:16,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-19 07:45:16,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11
[2023-11-19 07:45:16,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499149561]
[2023-11-19 07:45:16,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:45:16,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-11-19 07:45:16,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:16,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-11-19 07:45:16,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132
[2023-11-19 07:45:16,529 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 181
[2023-11-19 07:45:16,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 70 flow. Second operand has 12 states, 12 states have (on average 78.16666666666667) internal successors, (938), 12 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:16,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:16,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 181
[2023-11-19 07:45:16,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:16,594 INFO L124 PetriNetUnfolderBase]: 33/92 cut-off events.
[2023-11-19 07:45:16,594 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES.
[2023-11-19 07:45:16,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 92 events. 33/92 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 294 event pairs, 32 based on Foata normal form. 6/70 useless extension candidates. Maximal degree in co-relation 208. Up to 81 conditions per place.
[2023-11-19 07:45:16,598 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 15 selfloop transitions, 11 changer transitions 0/28 dead transitions.
[2023-11-19 07:45:16,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 28 transitions, 158 flow
[2023-11-19 07:45:16,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2023-11-19 07:45:16,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2023-11-19 07:45:16,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 956 transitions.
[2023-11-19 07:45:16,604 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44014732965009207
[2023-11-19 07:45:16,604 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 956 transitions.
[2023-11-19 07:45:16,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 956 transitions.
[2023-11-19 07:45:16,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:16,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 956 transitions.
[2023-11-19 07:45:16,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 79.66666666666667) internal successors, (956), 12 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:16,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 181.0) internal successors, (2353), 13 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:16,617 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 181.0) internal successors, (2353), 13 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:16,617 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 70 flow. Second operand 12 states and 956 transitions.
[2023-11-19 07:45:16,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 28 transitions, 158 flow
[2023-11-19 07:45:16,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 28 transitions, 157 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-19 07:45:16,621 INFO L231 Difference]: Finished difference. Result has 48 places, 28 transitions, 153 flow
[2023-11-19 07:45:16,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=153, PETRI_PLACES=48, PETRI_TRANSITIONS=28}
[2023-11-19 07:45:16,624 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 21 predicate places.
[2023-11-19 07:45:16,624 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 28 transitions, 153 flow
[2023-11-19 07:45:16,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 78.16666666666667) internal successors, (938), 12 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:16,625 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:16,625 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1]
[2023-11-19 07:45:16,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-11-19 07:45:16,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:16,848 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:45:16,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:16,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1524089006, now seen corresponding path program 2 times
[2023-11-19 07:45:16,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:16,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119572793]
[2023-11-19 07:45:16,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:16,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:17,072 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked.
[2023-11-19 07:45:17,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:17,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119572793]
[2023-11-19 07:45:17,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119572793] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:17,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:45:17,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:45:17,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405279153]
[2023-11-19 07:45:17,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:17,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:45:17,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:17,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:45:17,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:45:17,168 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 181
[2023-11-19 07:45:17,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 28 transitions, 153 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:17,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:17,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 181
[2023-11-19 07:45:17,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:17,225 INFO L124 PetriNetUnfolderBase]: 29/83 cut-off events.
[2023-11-19 07:45:17,226 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES.
[2023-11-19 07:45:17,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 83 events. 29/83 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 245 event pairs, 20 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 214. Up to 63 conditions per place.
[2023-11-19 07:45:17,228 INFO L140 encePairwiseOnDemand]: 177/181 looper letters, 26 selfloop transitions, 3 changer transitions 0/31 dead transitions.
[2023-11-19 07:45:17,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 31 transitions, 217 flow
[2023-11-19 07:45:17,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:45:17,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:45:17,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions.
[2023-11-19 07:45:17,230 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4677716390423573
[2023-11-19 07:45:17,230 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 254 transitions.
[2023-11-19 07:45:17,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 254 transitions.
[2023-11-19 07:45:17,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:17,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 254 transitions.
[2023-11-19 07:45:17,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:17,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:17,234 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:17,234 INFO L175 Difference]: Start difference. First operand has 48 places, 28 transitions, 153 flow. Second operand 3 states and 254 transitions.
[2023-11-19 07:45:17,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 31 transitions, 217 flow
[2023-11-19 07:45:17,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 31 transitions, 169 flow, removed 19 selfloop flow, removed 5 redundant places.
[2023-11-19 07:45:17,244 INFO L231 Difference]: Finished difference. Result has 44 places, 27 transitions, 109 flow
[2023-11-19 07:45:17,244 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=44, PETRI_TRANSITIONS=27}
[2023-11-19 07:45:17,246 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 17 predicate places.
[2023-11-19 07:45:17,247 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 27 transitions, 109 flow
[2023-11-19 07:45:17,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:17,247 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:17,247 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1]
[2023-11-19 07:45:17,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-19 07:45:17,248 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:45:17,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:17,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1524089007, now seen corresponding path program 1 times
[2023-11-19 07:45:17,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:17,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407527678]
[2023-11-19 07:45:17,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:17,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:17,497 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked.
[2023-11-19 07:45:17,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:17,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407527678]
[2023-11-19 07:45:17,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407527678] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:17,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:45:17,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:45:17,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508004433]
[2023-11-19 07:45:17,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:17,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:45:17,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:17,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:45:17,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:45:17,608 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 181
[2023-11-19 07:45:17,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 27 transitions, 109 flow. Second operand has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:17,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:17,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 181
[2023-11-19 07:45:17,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:17,685 INFO L124 PetriNetUnfolderBase]: 25/74 cut-off events.
[2023-11-19 07:45:17,685 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES.
[2023-11-19 07:45:17,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 74 events. 25/74 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 197 event pairs, 20 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 183. Up to 51 conditions per place.
[2023-11-19 07:45:17,687 INFO L140 encePairwiseOnDemand]: 177/181 looper letters, 23 selfloop transitions, 3 changer transitions 2/30 dead transitions.
[2023-11-19 07:45:17,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 30 transitions, 171 flow
[2023-11-19 07:45:17,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:45:17,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-11-19 07:45:17,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions.
[2023-11-19 07:45:17,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44060773480662985
[2023-11-19 07:45:17,689 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 319 transitions.
[2023-11-19 07:45:17,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 319 transitions.
[2023-11-19 07:45:17,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:17,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 319 transitions.
[2023-11-19 07:45:17,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:17,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:17,694 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:17,694 INFO L175 Difference]: Start difference. First operand has 44 places, 27 transitions, 109 flow. Second operand 4 states and 319 transitions.
[2023-11-19 07:45:17,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 30 transitions, 171 flow
[2023-11-19 07:45:17,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 30 transitions, 165 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-19 07:45:17,697 INFO L231 Difference]: Finished difference. Result has 44 places, 26 transitions, 107 flow
[2023-11-19 07:45:17,697 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=107, PETRI_PLACES=44, PETRI_TRANSITIONS=26}
[2023-11-19 07:45:17,698 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 17 predicate places.
[2023-11-19 07:45:17,698 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 26 transitions, 107 flow
[2023-11-19 07:45:17,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:17,699 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:17,699 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1]
[2023-11-19 07:45:17,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-11-19 07:45:17,700 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:45:17,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:17,700 INFO L85 PathProgramCache]: Analyzing trace with hash -2118255, now seen corresponding path program 1 times
[2023-11-19 07:45:17,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:17,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532527925]
[2023-11-19 07:45:17,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:17,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:17,872 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked.
[2023-11-19 07:45:17,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:17,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532527925]
[2023-11-19 07:45:17,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532527925] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:17,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:45:17,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:45:17,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461254529]
[2023-11-19 07:45:17,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:17,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-19 07:45:17,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:17,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-19 07:45:17,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:45:17,979 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 181
[2023-11-19 07:45:17,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 26 transitions, 107 flow. Second operand has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:17,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:17,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 181
[2023-11-19 07:45:17,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:18,088 INFO L124 PetriNetUnfolderBase]: 23/80 cut-off events.
[2023-11-19 07:45:18,088 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES.
[2023-11-19 07:45:18,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 80 events. 23/80 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 216 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 193. Up to 36 conditions per place.
[2023-11-19 07:45:18,089 INFO L140 encePairwiseOnDemand]: 173/181 looper letters, 30 selfloop transitions, 8 changer transitions 0/38 dead transitions.
[2023-11-19 07:45:18,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 38 transitions, 209 flow
[2023-11-19 07:45:18,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-11-19 07:45:18,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-11-19 07:45:18,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 406 transitions.
[2023-11-19 07:45:18,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4486187845303867
[2023-11-19 07:45:18,093 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 406 transitions.
[2023-11-19 07:45:18,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 406 transitions.
[2023-11-19 07:45:18,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:18,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 406 transitions.
[2023-11-19 07:45:18,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 81.2) internal successors, (406), 5 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:18,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:18,099 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:18,099 INFO L175 Difference]: Start difference. First operand has 44 places, 26 transitions, 107 flow. Second operand 5 states and 406 transitions.
[2023-11-19 07:45:18,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 38 transitions, 209 flow
[2023-11-19 07:45:18,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 38 transitions, 201 flow, removed 0 selfloop flow, removed 3 redundant places.
[2023-11-19 07:45:18,103 INFO L231 Difference]: Finished difference. Result has 49 places, 31 transitions, 155 flow
[2023-11-19 07:45:18,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=155, PETRI_PLACES=49, PETRI_TRANSITIONS=31}
[2023-11-19 07:45:18,104 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 22 predicate places.
[2023-11-19 07:45:18,105 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 31 transitions, 155 flow
[2023-11-19 07:45:18,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:18,105 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:18,106 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:45:18,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-11-19 07:45:18,106 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:45:18,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:18,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1283831150, now seen corresponding path program 1 times
[2023-11-19 07:45:18,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:18,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594761812]
[2023-11-19 07:45:18,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:18,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:18,221 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked.
[2023-11-19 07:45:18,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:18,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594761812]
[2023-11-19 07:45:18,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594761812] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:18,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:45:18,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:45:18,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781860765]
[2023-11-19 07:45:18,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:18,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:45:18,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:18,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:45:18,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:45:18,277 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 181
[2023-11-19 07:45:18,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 31 transitions, 155 flow. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:18,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:18,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 181
[2023-11-19 07:45:18,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:18,324 INFO L124 PetriNetUnfolderBase]: 16/59 cut-off events.
[2023-11-19 07:45:18,324 INFO L125 PetriNetUnfolderBase]: For 70/73 co-relation queries the response was YES.
[2023-11-19 07:45:18,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 59 events. 16/59 cut-off events. For 70/73 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 114 event pairs, 12 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 178. Up to 33 conditions per place.
[2023-11-19 07:45:18,326 INFO L140 encePairwiseOnDemand]: 177/181 looper letters, 19 selfloop transitions, 4 changer transitions 6/31 dead transitions.
[2023-11-19 07:45:18,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 31 transitions, 205 flow
[2023-11-19 07:45:18,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:45:18,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-11-19 07:45:18,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions.
[2023-11-19 07:45:18,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43784530386740333
[2023-11-19 07:45:18,328 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 317 transitions.
[2023-11-19 07:45:18,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 317 transitions.
[2023-11-19 07:45:18,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:18,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 317 transitions.
[2023-11-19 07:45:18,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:18,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:18,333 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:18,333 INFO L175 Difference]: Start difference. First operand has 49 places, 31 transitions, 155 flow. Second operand 4 states and 317 transitions.
[2023-11-19 07:45:18,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 31 transitions, 205 flow
[2023-11-19 07:45:18,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 31 transitions, 205 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:45:18,336 INFO L231 Difference]: Finished difference. Result has 51 places, 25 transitions, 133 flow
[2023-11-19 07:45:18,337 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=133, PETRI_PLACES=51, PETRI_TRANSITIONS=25}
[2023-11-19 07:45:18,338 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 24 predicate places.
[2023-11-19 07:45:18,339 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 25 transitions, 133 flow
[2023-11-19 07:45:18,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:18,339 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:18,339 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:45:18,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-11-19 07:45:18,340 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:45:18,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:18,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1278824103, now seen corresponding path program 1 times
[2023-11-19 07:45:18,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:18,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95768599]
[2023-11-19 07:45:18,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:18,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:18,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:18,528 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked.
[2023-11-19 07:45:18,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:18,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95768599]
[2023-11-19 07:45:18,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95768599] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:18,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:45:18,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:45:18,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957860274]
[2023-11-19 07:45:18,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:18,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:45:18,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:18,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:45:18,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:45:18,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 181
[2023-11-19 07:45:18,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 25 transitions, 133 flow. Second operand has 6 states, 6 states have (on average 70.83333333333333) internal successors, (425), 6 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:18,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:18,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 181
[2023-11-19 07:45:18,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:18,789 INFO L124 PetriNetUnfolderBase]: 13/46 cut-off events.
[2023-11-19 07:45:18,789 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES.
[2023-11-19 07:45:18,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 46 events. 13/46 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 2/48 useless extension candidates. Maximal degree in co-relation 153. Up to 16 conditions per place.
[2023-11-19 07:45:18,790 INFO L140 encePairwiseOnDemand]: 172/181 looper letters, 0 selfloop transitions, 0 changer transitions 33/33 dead transitions.
[2023-11-19 07:45:18,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 33 transitions, 217 flow
[2023-11-19 07:45:18,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-11-19 07:45:18,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2023-11-19 07:45:18,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 508 transitions.
[2023-11-19 07:45:18,795 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40094711917916337
[2023-11-19 07:45:18,795 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 508 transitions.
[2023-11-19 07:45:18,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 508 transitions.
[2023-11-19 07:45:18,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:18,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 508 transitions.
[2023-11-19 07:45:18,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 72.57142857142857) internal successors, (508), 7 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:18,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:18,802 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 181.0) internal successors, (1448), 8 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:18,803 INFO L175 Difference]: Start difference. First operand has 51 places, 25 transitions, 133 flow. Second operand 7 states and 508 transitions.
[2023-11-19 07:45:18,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 33 transitions, 217 flow
[2023-11-19 07:45:18,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 33 transitions, 200 flow, removed 0 selfloop flow, removed 5 redundant places.
[2023-11-19 07:45:18,806 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow
[2023-11-19 07:45:18,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0}
[2023-11-19 07:45:18,807 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 20 predicate places.
[2023-11-19 07:45:18,807 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow
[2023-11-19 07:45:18,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.83333333333333) internal successors, (425), 6 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:18,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 16 remaining)
[2023-11-19 07:45:18,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 16 remaining)
[2023-11-19 07:45:18,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining)
[2023-11-19 07:45:18,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining)
[2023-11-19 07:45:18,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining)
[2023-11-19 07:45:18,828 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining)
[2023-11-19 07:45:18,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (9 of 16 remaining)
[2023-11-19 07:45:18,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining)
[2023-11-19 07:45:18,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining)
[2023-11-19 07:45:18,829 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining)
[2023-11-19 07:45:18,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 16 remaining)
[2023-11-19 07:45:18,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 16 remaining)
[2023-11-19 07:45:18,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 16 remaining)
[2023-11-19 07:45:18,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 16 remaining)
[2023-11-19 07:45:18,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 16 remaining)
[2023-11-19 07:45:18,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 16 remaining)
[2023-11-19 07:45:18,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-11-19 07:45:18,832 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:45:18,837 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2023-11-19 07:45:18,838 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 07:45:18,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:45:18 BasicIcfg
[2023-11-19 07:45:18,843 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 07:45:18,844 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 07:45:18,844 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 07:45:18,844 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 07:45:18,845 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:11" (3/4) ...
[2023-11-19 07:45:18,846 INFO L137 WitnessPrinter]: Generating witness for correct program
[2023-11-19 07:45:18,851 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun
[2023-11-19 07:45:18,857 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges
[2023-11-19 07:45:18,857 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2023-11-19 07:45:18,857 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2023-11-19 07:45:18,961 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml
[2023-11-19 07:45:18,965 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/witness.yml
[2023-11-19 07:45:18,966 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 07:45:18,967 INFO L158 Benchmark]: Toolchain (without parser) took 9095.46ms. Allocated memory was 127.9MB in the beginning and 201.3MB in the end (delta: 73.4MB). Free memory was 80.0MB in the beginning and 163.8MB in the end (delta: -83.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:45:18,967 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 127.9MB. Free memory was 98.7MB in the beginning and 98.7MB in the end (delta: 70.7kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:45:18,967 INFO L158 Benchmark]: CACSL2BoogieTranslator took 846.89ms. Allocated memory is still 127.9MB. Free memory was 79.7MB in the beginning and 52.0MB in the end (delta: 27.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB.
[2023-11-19 07:45:18,968 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.89ms. Allocated memory is still 127.9MB. Free memory was 52.0MB in the beginning and 96.4MB in the end (delta: -44.4MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB.
[2023-11-19 07:45:18,968 INFO L158 Benchmark]: Boogie Preprocessor took 65.09ms. Allocated memory was 127.9MB in the beginning and 167.8MB in the end (delta: 39.8MB). Free memory was 96.4MB in the beginning and 139.3MB in the end (delta: -42.9MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB.
[2023-11-19 07:45:18,969 INFO L158 Benchmark]: RCFGBuilder took 455.57ms. Allocated memory is still 167.8MB. Free memory was 139.3MB in the beginning and 124.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2023-11-19 07:45:18,969 INFO L158 Benchmark]: TraceAbstraction took 7491.47ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 123.7MB in the beginning and 168.0MB in the end (delta: -44.2MB). Peak memory consumption was 102.2MB. Max. memory is 16.1GB.
[2023-11-19 07:45:18,970 INFO L158 Benchmark]: Witness Printer took 122.00ms. Allocated memory is still 201.3MB. Free memory was 168.0MB in the beginning and 163.8MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:45:18,973 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.35ms. Allocated memory is still 127.9MB. Free memory was 98.7MB in the beginning and 98.7MB in the end (delta: 70.7kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 846.89ms. Allocated memory is still 127.9MB. Free memory was 79.7MB in the beginning and 52.0MB in the end (delta: 27.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 106.89ms. Allocated memory is still 127.9MB. Free memory was 52.0MB in the beginning and 96.4MB in the end (delta: -44.4MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 65.09ms. Allocated memory was 127.9MB in the beginning and 167.8MB in the end (delta: 39.8MB). Free memory was 96.4MB in the beginning and 139.3MB in the end (delta: -42.9MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB.
* RCFGBuilder took 455.57ms. Allocated memory is still 167.8MB. Free memory was 139.3MB in the beginning and 124.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 7491.47ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 123.7MB in the beginning and 168.0MB in the end (delta: -44.2MB). Peak memory consumption was 102.2MB. Max. memory is 16.1GB.
* Witness Printer took 122.00ms. Allocated memory is still 201.3MB. Free memory was 168.0MB in the beginning and 163.8MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
Lipton Reduction Statistics: ReductionTime: 2.5s, 87 PlacesBefore, 27 PlacesAfterwards, 87 TransitionsBefore, 24 TransitionsAfterwards, 1288 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 2 ConcurrentYvCompositions, 3 ChoiceCompositions, 93 TotalNumberOfCompositions, 2375 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1547, independent: 1425, independent conditional: 0, independent unconditional: 1425, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 781, independent: 756, independent conditional: 0, independent unconditional: 756, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1547, independent: 669, independent conditional: 0, independent unconditional: 669, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 781, unknown conditional: 0, unknown unconditional: 781] , Statistics on independence cache: Total cache size (in pairs): 44, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 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: 935]: all allocated memory was freed
For all program executions holds that all allocated memory was freed 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
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 3 procedures, 114 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.3s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 719 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 435 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1062 IncrementalHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 50 mSDtfsCounter, 1062 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred in iteration=8, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 129 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 127 ConstructedInterpolants, 0 QuantifiedInterpolants, 929 SizeOfPredicates, 2 NumberOfNonLiveVariables, 218 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 285/328 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
- AllSpecificationsHoldResult: All specifications hold
11 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2023-11-19 07:45:19,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e880318-4eb7-4a1f-93fa-c908dcebeacb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE