./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix007.oepc.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c5fee3-ca13-470a-96d2-39ba051e7cad/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c5fee3-ca13-470a-96d2-39ba051e7cad/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_98c5fee3-ca13-470a-96d2-39ba051e7cad/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c5fee3-ca13-470a-96d2-39ba051e7cad/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix007.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c5fee3-ca13-470a-96d2-39ba051e7cad/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_98c5fee3-ca13-470a-96d2-39ba051e7cad/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 87b62b2cd45c104fec3a3f6f97bb4a2e98408c552f26c7f9920866b9b8c9b373
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:39:48,778 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:39:48,852 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c5fee3-ca13-470a-96d2-39ba051e7cad/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2023-11-19 07:39:48,858 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:39:48,858 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:39:48,901 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:39:48,906 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:39:48,907 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:39:48,908 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:39:48,909 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:39:48,910 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:39:48,911 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:39:48,911 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:39:48,912 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:39:48,912 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:39:48,913 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:39:48,913 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:39:48,914 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:39:48,914 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2023-11-19 07:39:48,916 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2023-11-19 07:39:48,917 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2023-11-19 07:39:48,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:39:48,918 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-19 07:39:48,919 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:39:48,920 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:39:48,920 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:39:48,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:39:48,921 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:39:48,922 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:39:48,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:39:48,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:39:48,924 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:39:48,924 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:39:48,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:39:48,924 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:39:48,925 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:39:48,925 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:39:48,925 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:39:48,925 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_98c5fee3-ca13-470a-96d2-39ba051e7cad/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c5fee3-ca13-470a-96d2-39ba051e7cad/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87b62b2cd45c104fec3a3f6f97bb4a2e98408c552f26c7f9920866b9b8c9b373
[2023-11-19 07:39:49,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:39:49,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:39:49,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:39:49,259 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:39:49,259 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:39:49,261 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c5fee3-ca13-470a-96d2-39ba051e7cad/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/mix007.oepc.i
[2023-11-19 07:39:52,408 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:39:52,740 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:39:52,741 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c5fee3-ca13-470a-96d2-39ba051e7cad/sv-benchmarks/c/pthread-wmm/mix007.oepc.i
[2023-11-19 07:39:52,769 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c5fee3-ca13-470a-96d2-39ba051e7cad/bin/uautomizer-verify-uCwYo4JHxu/data/f69d59a72/9593c4bab71c426f9c3bf86dbf53bed3/FLAG337fb2ccd
[2023-11-19 07:39:52,785 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c5fee3-ca13-470a-96d2-39ba051e7cad/bin/uautomizer-verify-uCwYo4JHxu/data/f69d59a72/9593c4bab71c426f9c3bf86dbf53bed3
[2023-11-19 07:39:52,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:39:52,790 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:39:52,792 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:39:52,792 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:39:52,798 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:39:52,800 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:52" (1/1) ...
[2023-11-19 07:39:52,801 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e0083bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:52, skipping insertion in model container
[2023-11-19 07:39:52,801 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:52" (1/1) ...
[2023-11-19 07:39:52,859 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:39:53,414 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:39:53,431 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:39:53,548 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:39:53,604 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:39:53,605 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:39:53,614 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:39:53,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53 WrapperNode
[2023-11-19 07:39:53,615 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:39:53,616 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:39:53,617 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:39:53,617 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:39:53,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ...
[2023-11-19 07:39:53,665 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ...
[2023-11-19 07:39:53,713 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 151
[2023-11-19 07:39:53,714 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:39:53,715 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:39:53,715 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:39:53,715 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:39:53,727 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ...
[2023-11-19 07:39:53,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ...
[2023-11-19 07:39:53,743 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ...
[2023-11-19 07:39:53,747 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ...
[2023-11-19 07:39:53,757 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ...
[2023-11-19 07:39:53,767 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ...
[2023-11-19 07:39:53,773 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ...
[2023-11-19 07:39:53,787 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ...
[2023-11-19 07:39:53,792 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:39:53,793 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:39:53,793 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:39:53,793 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:39:53,794 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ...
[2023-11-19 07:39:53,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:39:53,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c5fee3-ca13-470a-96d2-39ba051e7cad/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:53,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c5fee3-ca13-470a-96d2-39ba051e7cad/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:53,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c5fee3-ca13-470a-96d2-39ba051e7cad/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:39:53,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-11-19 07:39:53,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2023-11-19 07:39:53,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:39:53,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:39:53,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:39:53,882 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2023-11-19 07:39:53,882 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2023-11-19 07:39:53,882 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2023-11-19 07:39:53,883 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2023-11-19 07:39:53,883 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2023-11-19 07:39:53,884 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2023-11-19 07:39:53,884 INFO L130 BoogieDeclarations]: Found specification of procedure P3
[2023-11-19 07:39:53,884 INFO L138 BoogieDeclarations]: Found implementation of procedure P3
[2023-11-19 07:39:53,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:39:53,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2023-11-19 07:39:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:39:53,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:39:53,888 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 07:39:54,104 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:39:54,107 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:39:54,600 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:39:54,822 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:39:54,822 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 07:39:54,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:54 BoogieIcfgContainer
[2023-11-19 07:39:54,827 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:39:54,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:39:54,830 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:39:54,834 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:39:54,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:39:52" (1/3) ...
[2023-11-19 07:39:54,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41358a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:54, skipping insertion in model container
[2023-11-19 07:39:54,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (2/3) ...
[2023-11-19 07:39:54,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41358a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:54, skipping insertion in model container
[2023-11-19 07:39:54,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:54" (3/3) ...
[2023-11-19 07:39:54,837 INFO L112 eAbstractionObserver]: Analyzing ICFG mix007.oepc.i
[2023-11-19 07:39:54,858 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:39:54,859 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations.
[2023-11-19 07:39:54,859 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-11-19 07:39:54,972 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-11-19 07:39:55,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 154 transitions, 324 flow
[2023-11-19 07:39:55,101 INFO L124 PetriNetUnfolderBase]: 4/150 cut-off events.
[2023-11-19 07:39:55,109 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:39:55,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 150 events. 4/150 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 124 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 108. Up to 2 conditions per place.
[2023-11-19 07:39:55,120 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 154 transitions, 324 flow
[2023-11-19 07:39:55,126 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 150 transitions, 312 flow
[2023-11-19 07:39:55,130 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 07:39:55,141 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 159 places, 150 transitions, 312 flow
[2023-11-19 07:39:55,144 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 159 places, 150 transitions, 312 flow
[2023-11-19 07:39:55,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 150 transitions, 312 flow
[2023-11-19 07:39:55,201 INFO L124 PetriNetUnfolderBase]: 4/150 cut-off events.
[2023-11-19 07:39:55,202 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:39:55,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 150 events. 4/150 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 124 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 108. Up to 2 conditions per place.
[2023-11-19 07:39:55,217 INFO L119 LiptonReduction]: Number of co-enabled transitions 4400
[2023-11-19 07:40:01,756 INFO L134 LiptonReduction]: Checked pairs total: 11255
[2023-11-19 07:40:01,758 INFO L136 LiptonReduction]: Total number of compositions: 153
[2023-11-19 07:40:01,792 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:40:01,801 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;@144da260, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:40:01,801 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations.
[2023-11-19 07:40:01,803 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 07:40:01,803 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events.
[2023-11-19 07:40:01,803 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:40:01,804 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:40:01,804 INFO L208 CegarLoopForPetriNet]: trace histogram [1]
[2023-11-19 07:40:01,805 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:40:01,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:40:01,811 INFO L85 PathProgramCache]: Analyzing trace with hash 669, now seen corresponding path program 1 times
[2023-11-19 07:40:01,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:40:01,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351529961]
[2023-11-19 07:40:01,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:40:01,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:40:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:40:02,003 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 07:40:02,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:40:02,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351529961]
[2023-11-19 07:40:02,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351529961] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:40:02,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:40:02,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0
[2023-11-19 07:40:02,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094555385]
[2023-11-19 07:40:02,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:40:02,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 07:40:02,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:40:02,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 07:40:02,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 07:40:02,061 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 307
[2023-11-19 07:40:02,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 40 transitions, 92 flow. Second operand has 2 states, 2 states have (on average 137.5) internal successors, (275), 2 states have internal predecessors, (275), 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 07:40:02,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:40:02,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 307
[2023-11-19 07:40:02,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:40:04,388 INFO L124 PetriNetUnfolderBase]: 7479/10215 cut-off events.
[2023-11-19 07:40:04,388 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES.
[2023-11-19 07:40:04,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20523 conditions, 10215 events. 7479/10215 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 522. Compared 54149 event pairs, 7479 based on Foata normal form. 0/8767 useless extension candidates. Maximal degree in co-relation 20511. Up to 10091 conditions per place.
[2023-11-19 07:40:04,505 INFO L140 encePairwiseOnDemand]: 299/307 looper letters, 27 selfloop transitions, 0 changer transitions 0/32 dead transitions.
[2023-11-19 07:40:04,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 32 transitions, 130 flow
[2023-11-19 07:40:04,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 07:40:04,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-11-19 07:40:04,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 309 transitions.
[2023-11-19 07:40:04,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.503257328990228
[2023-11-19 07:40:04,530 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 309 transitions.
[2023-11-19 07:40:04,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 309 transitions.
[2023-11-19 07:40:04,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:40:04,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 309 transitions.
[2023-11-19 07:40:04,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 154.5) internal successors, (309), 2 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 07:40:04,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 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 07:40:04,557 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 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 07:40:04,559 INFO L175 Difference]: Start difference. First operand has 53 places, 40 transitions, 92 flow. Second operand 2 states and 309 transitions.
[2023-11-19 07:40:04,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 32 transitions, 130 flow
[2023-11-19 07:40:04,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 32 transitions, 126 flow, removed 0 selfloop flow, removed 4 redundant places.
[2023-11-19 07:40:04,575 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 72 flow
[2023-11-19 07:40:04,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=307, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=72, PETRI_PLACES=42, PETRI_TRANSITIONS=32}
[2023-11-19 07:40:04,583 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -11 predicate places.
[2023-11-19 07:40:04,584 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 72 flow
[2023-11-19 07:40:04,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 137.5) internal successors, (275), 2 states have internal predecessors, (275), 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 07:40:04,585 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:40:04,585 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2023-11-19 07:40:04,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:40:04,586 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:40:04,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:40:04,590 INFO L85 PathProgramCache]: Analyzing trace with hash 656444, now seen corresponding path program 1 times
[2023-11-19 07:40:04,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:40:04,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337644928]
[2023-11-19 07:40:04,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:40:04,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:40:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:40:04,990 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 07:40:04,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:40:04,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337644928]
[2023-11-19 07:40:04,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337644928] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:40:04,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:40:04,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:40:04,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638091035]
[2023-11-19 07:40:04,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:40:04,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:40:04,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:40:04,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:40:04,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:40:05,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 307
[2023-11-19 07:40:05,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 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 07:40:05,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:40:05,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 307
[2023-11-19 07:40:05,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:40:06,520 INFO L124 PetriNetUnfolderBase]: 5879/8515 cut-off events.
[2023-11-19 07:40:06,520 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:40:06,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16656 conditions, 8515 events. 5879/8515 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 53001 event pairs, 1079 based on Foata normal form. 0/7845 useless extension candidates. Maximal degree in co-relation 16653. Up to 6367 conditions per place.
[2023-11-19 07:40:06,589 INFO L140 encePairwiseOnDemand]: 304/307 looper letters, 43 selfloop transitions, 2 changer transitions 2/52 dead transitions.
[2023-11-19 07:40:06,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 52 transitions, 212 flow
[2023-11-19 07:40:06,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:40:06,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:40:06,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions.
[2023-11-19 07:40:06,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.495114006514658
[2023-11-19 07:40:06,596 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 456 transitions.
[2023-11-19 07:40:06,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 456 transitions.
[2023-11-19 07:40:06,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:40:06,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 456 transitions.
[2023-11-19 07:40:06,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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 07:40:06,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 307.0) internal successors, (1228), 4 states have internal predecessors, (1228), 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 07:40:06,604 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 307.0) internal successors, (1228), 4 states have internal predecessors, (1228), 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 07:40:06,605 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 72 flow. Second operand 3 states and 456 transitions.
[2023-11-19 07:40:06,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 52 transitions, 212 flow
[2023-11-19 07:40:06,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 52 transitions, 212 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:40:06,607 INFO L231 Difference]: Finished difference. Result has 43 places, 30 transitions, 72 flow
[2023-11-19 07:40:06,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=307, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=43, PETRI_TRANSITIONS=30}
[2023-11-19 07:40:06,609 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -10 predicate places.
[2023-11-19 07:40:06,609 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 30 transitions, 72 flow
[2023-11-19 07:40:06,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 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 07:40:06,610 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:40:06,610 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:40:06,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-19 07:40:06,610 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:40:06,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:40:06,611 INFO L85 PathProgramCache]: Analyzing trace with hash 259095629, now seen corresponding path program 1 times
[2023-11-19 07:40:06,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:40:06,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301842830]
[2023-11-19 07:40:06,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:40:06,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:40:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:40:07,114 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 07:40:07,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:40:07,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301842830]
[2023-11-19 07:40:07,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301842830] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:40:07,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:40:07,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:40:07,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087641748]
[2023-11-19 07:40:07,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:40:07,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:40:07,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:40:07,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:40:07,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:40:07,141 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 307
[2023-11-19 07:40:07,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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 07:40:07,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:40:07,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 307
[2023-11-19 07:40:07,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:40:11,368 INFO L124 PetriNetUnfolderBase]: 22997/31016 cut-off events.
[2023-11-19 07:40:11,368 INFO L125 PetriNetUnfolderBase]: For 1569/1569 co-relation queries the response was YES.
[2023-11-19 07:40:11,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64155 conditions, 31016 events. 22997/31016 cut-off events. For 1569/1569 co-relation queries the response was YES. Maximal size of possible extension queue 938. Compared 166590 event pairs, 8359 based on Foata normal form. 0/30136 useless extension candidates. Maximal degree in co-relation 64151. Up to 20393 conditions per place.
[2023-11-19 07:40:11,588 INFO L140 encePairwiseOnDemand]: 297/307 looper letters, 48 selfloop transitions, 9 changer transitions 0/57 dead transitions.
[2023-11-19 07:40:11,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 57 transitions, 248 flow
[2023-11-19 07:40:11,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:40:11,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:40:11,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 433 transitions.
[2023-11-19 07:40:11,592 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47014115092290987
[2023-11-19 07:40:11,593 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 433 transitions.
[2023-11-19 07:40:11,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 433 transitions.
[2023-11-19 07:40:11,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:40:11,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 433 transitions.
[2023-11-19 07:40:11,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 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 07:40:11,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 307.0) internal successors, (1228), 4 states have internal predecessors, (1228), 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 07:40:11,601 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 307.0) internal successors, (1228), 4 states have internal predecessors, (1228), 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 07:40:11,601 INFO L175 Difference]: Start difference. First operand has 43 places, 30 transitions, 72 flow. Second operand 3 states and 433 transitions.
[2023-11-19 07:40:11,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 57 transitions, 248 flow
[2023-11-19 07:40:11,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 57 transitions, 242 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-19 07:40:11,606 INFO L231 Difference]: Finished difference. Result has 44 places, 38 transitions, 138 flow
[2023-11-19 07:40:11,606 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=307, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=44, PETRI_TRANSITIONS=38}
[2023-11-19 07:40:11,608 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -9 predicate places.
[2023-11-19 07:40:11,609 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 38 transitions, 138 flow
[2023-11-19 07:40:11,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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 07:40:11,610 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:40:11,610 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:40:11,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-19 07:40:11,616 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:40:11,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:40:11,617 INFO L85 PathProgramCache]: Analyzing trace with hash 259095639, now seen corresponding path program 1 times
[2023-11-19 07:40:11,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:40:11,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545058983]
[2023-11-19 07:40:11,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:40:11,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:40:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:40:12,810 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 07:40:12,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:40:12,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545058983]
[2023-11-19 07:40:12,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545058983] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:40:12,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:40:12,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:40:12,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706044785]
[2023-11-19 07:40:12,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:40:12,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:40:12,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:40:12,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:40:12,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:40:13,149 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 307
[2023-11-19 07:40:13,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 38 transitions, 138 flow. Second operand has 6 states, 6 states have (on average 120.83333333333333) internal successors, (725), 6 states have internal predecessors, (725), 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 07:40:13,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:40:13,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 307
[2023-11-19 07:40:13,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:40:16,900 INFO L124 PetriNetUnfolderBase]: 14780/20916 cut-off events.
[2023-11-19 07:40:16,900 INFO L125 PetriNetUnfolderBase]: For 6171/6298 co-relation queries the response was YES.
[2023-11-19 07:40:16,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49451 conditions, 20916 events. 14780/20916 cut-off events. For 6171/6298 co-relation queries the response was YES. Maximal size of possible extension queue 826. Compared 123376 event pairs, 2179 based on Foata normal form. 518/21099 useless extension candidates. Maximal degree in co-relation 49446. Up to 15165 conditions per place.
[2023-11-19 07:40:17,057 INFO L140 encePairwiseOnDemand]: 300/307 looper letters, 55 selfloop transitions, 6 changer transitions 0/69 dead transitions.
[2023-11-19 07:40:17,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 69 transitions, 334 flow
[2023-11-19 07:40:17,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-19 07:40:17,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-11-19 07:40:17,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 771 transitions.
[2023-11-19 07:40:17,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4185667752442997
[2023-11-19 07:40:17,063 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 771 transitions.
[2023-11-19 07:40:17,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 771 transitions.
[2023-11-19 07:40:17,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:40:17,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 771 transitions.
[2023-11-19 07:40:17,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.5) internal successors, (771), 6 states have internal predecessors, (771), 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 07:40:17,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 307.0) internal successors, (2149), 7 states have internal predecessors, (2149), 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 07:40:17,076 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 307.0) internal successors, (2149), 7 states have internal predecessors, (2149), 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 07:40:17,076 INFO L175 Difference]: Start difference. First operand has 44 places, 38 transitions, 138 flow. Second operand 6 states and 771 transitions.
[2023-11-19 07:40:17,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 69 transitions, 334 flow
[2023-11-19 07:40:17,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 69 transitions, 312 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-19 07:40:17,173 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 141 flow
[2023-11-19 07:40:17,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=307, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=141, PETRI_PLACES=48, PETRI_TRANSITIONS=38}
[2023-11-19 07:40:17,176 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -5 predicate places.
[2023-11-19 07:40:17,176 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 141 flow
[2023-11-19 07:40:17,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.83333333333333) internal successors, (725), 6 states have internal predecessors, (725), 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 07:40:17,177 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:40:17,178 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:40:17,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-19 07:40:17,178 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:40:17,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:40:17,179 INFO L85 PathProgramCache]: Analyzing trace with hash -131192057, now seen corresponding path program 1 times
[2023-11-19 07:40:17,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:40:17,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556912951]
[2023-11-19 07:40:17,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:40:17,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:40:17,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:40:18,001 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 07:40:18,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:40:18,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556912951]
[2023-11-19 07:40:18,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556912951] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:40:18,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:40:18,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:40:18,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945339324]
[2023-11-19 07:40:18,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:40:18,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:40:18,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:40:18,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:40:18,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:40:18,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 307
[2023-11-19 07:40:18,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 141 flow. Second operand has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 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 07:40:18,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:40:18,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 307
[2023-11-19 07:40:18,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:40:20,603 INFO L124 PetriNetUnfolderBase]: 11012/15723 cut-off events.
[2023-11-19 07:40:20,604 INFO L125 PetriNetUnfolderBase]: For 4872/5303 co-relation queries the response was YES.
[2023-11-19 07:40:20,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35757 conditions, 15723 events. 11012/15723 cut-off events. For 4872/5303 co-relation queries the response was YES. Maximal size of possible extension queue 742. Compared 92747 event pairs, 4372 based on Foata normal form. 395/15436 useless extension candidates. Maximal degree in co-relation 35751. Up to 14407 conditions per place.
[2023-11-19 07:40:20,721 INFO L140 encePairwiseOnDemand]: 302/307 looper letters, 41 selfloop transitions, 4 changer transitions 0/55 dead transitions.
[2023-11-19 07:40:20,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 55 transitions, 261 flow
[2023-11-19 07:40:20,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-19 07:40:20,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-11-19 07:40:20,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 745 transitions.
[2023-11-19 07:40:20,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40445168295331163
[2023-11-19 07:40:20,727 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 745 transitions.
[2023-11-19 07:40:20,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 745 transitions.
[2023-11-19 07:40:20,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:40:20,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 745 transitions.
[2023-11-19 07:40:20,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 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 07:40:20,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 307.0) internal successors, (2149), 7 states have internal predecessors, (2149), 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 07:40:20,740 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 307.0) internal successors, (2149), 7 states have internal predecessors, (2149), 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 07:40:20,740 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 141 flow. Second operand 6 states and 745 transitions.
[2023-11-19 07:40:20,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 55 transitions, 261 flow
[2023-11-19 07:40:20,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 55 transitions, 249 flow, removed 0 selfloop flow, removed 5 redundant places.
[2023-11-19 07:40:20,746 INFO L231 Difference]: Finished difference. Result has 47 places, 36 transitions, 125 flow
[2023-11-19 07:40:20,746 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=307, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=125, PETRI_PLACES=47, PETRI_TRANSITIONS=36}
[2023-11-19 07:40:20,750 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -6 predicate places.
[2023-11-19 07:40:20,751 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 36 transitions, 125 flow
[2023-11-19 07:40:20,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 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 07:40:20,752 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:40:20,752 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:40:20,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-19 07:40:20,752 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:40:20,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:40:20,753 INFO L85 PathProgramCache]: Analyzing trace with hash 145723357, now seen corresponding path program 1 times
[2023-11-19 07:40:20,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:40:20,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505879551]
[2023-11-19 07:40:20,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:40:20,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:40:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:40:20,976 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 07:40:20,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:40:20,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505879551]
[2023-11-19 07:40:20,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505879551] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:40:20,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:40:20,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:40:20,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604568557]
[2023-11-19 07:40:20,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:40:20,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:40:20,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:40:20,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:40:20,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:40:20,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 307
[2023-11-19 07:40:20,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 36 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 07:40:20,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:40:20,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 307
[2023-11-19 07:40:20,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:40:23,231 INFO L124 PetriNetUnfolderBase]: 10834/15674 cut-off events.
[2023-11-19 07:40:23,231 INFO L125 PetriNetUnfolderBase]: For 3853/4124 co-relation queries the response was YES.
[2023-11-19 07:40:23,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35570 conditions, 15674 events. 10834/15674 cut-off events. For 3853/4124 co-relation queries the response was YES. Maximal size of possible extension queue 634. Compared 93564 event pairs, 3489 based on Foata normal form. 225/15491 useless extension candidates. Maximal degree in co-relation 35564. Up to 9752 conditions per place.
[2023-11-19 07:40:23,350 INFO L140 encePairwiseOnDemand]: 304/307 looper letters, 40 selfloop transitions, 3 changer transitions 0/51 dead transitions.
[2023-11-19 07:40:23,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 51 transitions, 250 flow
[2023-11-19 07:40:23,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:40:23,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:40:23,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions.
[2023-11-19 07:40:23,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4831704668838219
[2023-11-19 07:40:23,354 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 445 transitions.
[2023-11-19 07:40:23,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 445 transitions.
[2023-11-19 07:40:23,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:40:23,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 445 transitions.
[2023-11-19 07:40:23,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 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 07:40:23,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 307.0) internal successors, (1228), 4 states have internal predecessors, (1228), 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 07:40:23,361 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 307.0) internal successors, (1228), 4 states have internal predecessors, (1228), 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 07:40:23,361 INFO L175 Difference]: Start difference. First operand has 47 places, 36 transitions, 125 flow. Second operand 3 states and 445 transitions.
[2023-11-19 07:40:23,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 51 transitions, 250 flow
[2023-11-19 07:40:23,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 51 transitions, 242 flow, removed 0 selfloop flow, removed 4 redundant places.
[2023-11-19 07:40:23,365 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 129 flow
[2023-11-19 07:40:23,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=307, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=46, PETRI_TRANSITIONS=36}
[2023-11-19 07:40:23,367 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -7 predicate places.
[2023-11-19 07:40:23,367 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 129 flow
[2023-11-19 07:40:23,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 07:40:23,368 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:40:23,368 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:40:23,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-19 07:40:23,368 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:40:23,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:40:23,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1813504129, now seen corresponding path program 1 times
[2023-11-19 07:40:23,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:40:23,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608141845]
[2023-11-19 07:40:23,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:40:23,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:40:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:40:23,605 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 07:40:23,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:40:23,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608141845]
[2023-11-19 07:40:23,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608141845] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:40:23,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:40:23,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:40:23,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028966953]
[2023-11-19 07:40:23,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:40:23,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:40:23,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:40:23,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:40:23,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:40:23,623 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 307
[2023-11-19 07:40:23,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 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 07:40:23,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:40:23,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 307
[2023-11-19 07:40:23,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:40:25,453 INFO L124 PetriNetUnfolderBase]: 9003/13453 cut-off events.
[2023-11-19 07:40:25,453 INFO L125 PetriNetUnfolderBase]: For 2738/3101 co-relation queries the response was YES.
[2023-11-19 07:40:25,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30410 conditions, 13453 events. 9003/13453 cut-off events. For 2738/3101 co-relation queries the response was YES. Maximal size of possible extension queue 700. Compared 86732 event pairs, 1809 based on Foata normal form. 1092/14048 useless extension candidates. Maximal degree in co-relation 30403. Up to 5487 conditions per place.
[2023-11-19 07:40:25,549 INFO L140 encePairwiseOnDemand]: 300/307 looper letters, 57 selfloop transitions, 6 changer transitions 0/73 dead transitions.
[2023-11-19 07:40:25,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 73 transitions, 353 flow
[2023-11-19 07:40:25,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:40:25,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-11-19 07:40:25,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 579 transitions.
[2023-11-19 07:40:25,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4714983713355049
[2023-11-19 07:40:25,554 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 579 transitions.
[2023-11-19 07:40:25,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 579 transitions.
[2023-11-19 07:40:25,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:40:25,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 579 transitions.
[2023-11-19 07:40:25,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 144.75) internal successors, (579), 4 states have internal predecessors, (579), 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 07:40:25,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 307.0) internal successors, (1535), 5 states have internal predecessors, (1535), 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 07:40:25,563 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 307.0) internal successors, (1535), 5 states have internal predecessors, (1535), 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 07:40:25,564 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 129 flow. Second operand 4 states and 579 transitions.
[2023-11-19 07:40:25,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 73 transitions, 353 flow
[2023-11-19 07:40:25,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 73 transitions, 347 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-19 07:40:25,572 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 169 flow
[2023-11-19 07:40:25,573 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=307, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=169, PETRI_PLACES=49, PETRI_TRANSITIONS=41}
[2023-11-19 07:40:25,574 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -4 predicate places.
[2023-11-19 07:40:25,574 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 169 flow
[2023-11-19 07:40:25,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 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 07:40:25,575 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:40:25,575 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:40:25,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-11-19 07:40:25,576 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:40:25,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:40:25,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1835910325, now seen corresponding path program 1 times
[2023-11-19 07:40:25,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:40:25,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922101799]
[2023-11-19 07:40:25,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:40:25,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:40:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:40:25,854 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 07:40:25,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:40:25,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922101799]
[2023-11-19 07:40:25,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922101799] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:40:25,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:40:25,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:40:25,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998194666]
[2023-11-19 07:40:25,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:40:25,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:40:25,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:40:25,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:40:25,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:40:25,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 307
[2023-11-19 07:40:25,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 169 flow. Second operand has 4 states, 4 states have (on average 137.25) internal successors, (549), 4 states have internal predecessors, (549), 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 07:40:25,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:40:25,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 307
[2023-11-19 07:40:25,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:40:28,507 INFO L124 PetriNetUnfolderBase]: 13720/20643 cut-off events.
[2023-11-19 07:40:28,507 INFO L125 PetriNetUnfolderBase]: For 11506/11670 co-relation queries the response was YES.
[2023-11-19 07:40:28,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57866 conditions, 20643 events. 13720/20643 cut-off events. For 11506/11670 co-relation queries the response was YES. Maximal size of possible extension queue 910. Compared 137766 event pairs, 2527 based on Foata normal form. 207/20674 useless extension candidates. Maximal degree in co-relation 57857. Up to 10056 conditions per place.
[2023-11-19 07:40:28,643 INFO L140 encePairwiseOnDemand]: 304/307 looper letters, 60 selfloop transitions, 3 changer transitions 7/78 dead transitions.
[2023-11-19 07:40:28,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 78 transitions, 455 flow
[2023-11-19 07:40:28,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:40:28,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-11-19 07:40:28,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 583 transitions.
[2023-11-19 07:40:28,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4747557003257329
[2023-11-19 07:40:28,648 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 583 transitions.
[2023-11-19 07:40:28,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 583 transitions.
[2023-11-19 07:40:28,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:40:28,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 583 transitions.
[2023-11-19 07:40:28,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 145.75) internal successors, (583), 4 states have internal predecessors, (583), 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 07:40:28,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 307.0) internal successors, (1535), 5 states have internal predecessors, (1535), 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 07:40:28,656 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 307.0) internal successors, (1535), 5 states have internal predecessors, (1535), 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 07:40:28,656 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 169 flow. Second operand 4 states and 583 transitions.
[2023-11-19 07:40:28,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 78 transitions, 455 flow
[2023-11-19 07:40:28,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 78 transitions, 451 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-19 07:40:28,667 INFO L231 Difference]: Finished difference. Result has 53 places, 43 transitions, 192 flow
[2023-11-19 07:40:28,667 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=307, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=192, PETRI_PLACES=53, PETRI_TRANSITIONS=43}
[2023-11-19 07:40:28,668 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 0 predicate places.
[2023-11-19 07:40:28,669 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 43 transitions, 192 flow
[2023-11-19 07:40:28,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 137.25) internal successors, (549), 4 states have internal predecessors, (549), 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 07:40:28,669 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:40:28,670 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:40:28,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-11-19 07:40:28,670 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:40:28,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:40:28,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1354145280, now seen corresponding path program 1 times
[2023-11-19 07:40:28,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:40:28,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668092979]
[2023-11-19 07:40:28,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:40:28,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:40:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:40:28,910 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 07:40:28,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:40:28,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668092979]
[2023-11-19 07:40:28,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668092979] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:40:28,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:40:28,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:40:28,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142702228]
[2023-11-19 07:40:28,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:40:28,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-19 07:40:28,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:40:28,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-19 07:40:28,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:40:28,926 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 307
[2023-11-19 07:40:28,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 43 transitions, 192 flow. Second operand has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 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 07:40:28,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:40:28,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 307
[2023-11-19 07:40:28,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:40:31,828 INFO L124 PetriNetUnfolderBase]: 10187/15890 cut-off events.
[2023-11-19 07:40:31,828 INFO L125 PetriNetUnfolderBase]: For 9213/9504 co-relation queries the response was YES.
[2023-11-19 07:40:31,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43764 conditions, 15890 events. 10187/15890 cut-off events. For 9213/9504 co-relation queries the response was YES. Maximal size of possible extension queue 819. Compared 111471 event pairs, 2127 based on Foata normal form. 1036/16578 useless extension candidates. Maximal degree in co-relation 43753. Up to 5919 conditions per place.
[2023-11-19 07:40:31,930 INFO L140 encePairwiseOnDemand]: 300/307 looper letters, 73 selfloop transitions, 10 changer transitions 0/95 dead transitions.
[2023-11-19 07:40:31,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 95 transitions, 527 flow
[2023-11-19 07:40:31,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-11-19 07:40:31,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-11-19 07:40:31,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 727 transitions.
[2023-11-19 07:40:31,935 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4736156351791531
[2023-11-19 07:40:31,935 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 727 transitions.
[2023-11-19 07:40:31,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 727 transitions.
[2023-11-19 07:40:31,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:40:31,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 727 transitions.
[2023-11-19 07:40:31,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.4) internal successors, (727), 5 states have internal predecessors, (727), 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 07:40:31,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 307.0) internal successors, (1842), 6 states have internal predecessors, (1842), 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 07:40:31,944 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 307.0) internal successors, (1842), 6 states have internal predecessors, (1842), 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 07:40:31,944 INFO L175 Difference]: Start difference. First operand has 53 places, 43 transitions, 192 flow. Second operand 5 states and 727 transitions.
[2023-11-19 07:40:31,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 95 transitions, 527 flow
[2023-11-19 07:40:31,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 95 transitions, 523 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-19 07:40:31,963 INFO L231 Difference]: Finished difference. Result has 58 places, 48 transitions, 258 flow
[2023-11-19 07:40:31,964 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=307, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=258, PETRI_PLACES=58, PETRI_TRANSITIONS=48}
[2023-11-19 07:40:31,964 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 5 predicate places.
[2023-11-19 07:40:31,965 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 258 flow
[2023-11-19 07:40:31,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 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 07:40:31,965 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:40:31,966 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:40:31,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-11-19 07:40:31,966 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:40:31,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:40:31,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1950188427, now seen corresponding path program 1 times
[2023-11-19 07:40:31,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:40:31,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807080641]
[2023-11-19 07:40:31,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:40:31,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:40:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:40:32,287 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 07:40:32,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:40:32,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807080641]
[2023-11-19 07:40:32,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807080641] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:40:32,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:40:32,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:40:32,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244941088]
[2023-11-19 07:40:32,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:40:32,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-19 07:40:32,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:40:32,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-19 07:40:32,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:40:32,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 307
[2023-11-19 07:40:32,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 258 flow. Second operand has 5 states, 5 states have (on average 127.6) internal successors, (638), 5 states have internal predecessors, (638), 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 07:40:32,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:40:32,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 307
[2023-11-19 07:40:32,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:40:36,716 INFO L124 PetriNetUnfolderBase]: 22938/33462 cut-off events.
[2023-11-19 07:40:36,717 INFO L125 PetriNetUnfolderBase]: For 56992/56992 co-relation queries the response was YES.
[2023-11-19 07:40:36,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114935 conditions, 33462 events. 22938/33462 cut-off events. For 56992/56992 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 218036 event pairs, 5858 based on Foata normal form. 57/33519 useless extension candidates. Maximal degree in co-relation 114922. Up to 12725 conditions per place.
[2023-11-19 07:40:36,867 INFO L140 encePairwiseOnDemand]: 297/307 looper letters, 106 selfloop transitions, 15 changer transitions 34/155 dead transitions.
[2023-11-19 07:40:36,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 155 transitions, 1141 flow
[2023-11-19 07:40:36,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-19 07:40:36,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-11-19 07:40:36,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 846 transitions.
[2023-11-19 07:40:36,872 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4592833876221498
[2023-11-19 07:40:36,872 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 846 transitions.
[2023-11-19 07:40:36,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 846 transitions.
[2023-11-19 07:40:36,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:40:36,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 846 transitions.
[2023-11-19 07:40:36,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 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 07:40:36,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 307.0) internal successors, (2149), 7 states have internal predecessors, (2149), 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 07:40:36,882 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 307.0) internal successors, (2149), 7 states have internal predecessors, (2149), 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 07:40:36,882 INFO L175 Difference]: Start difference. First operand has 58 places, 48 transitions, 258 flow. Second operand 6 states and 846 transitions.
[2023-11-19 07:40:36,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 155 transitions, 1141 flow
[2023-11-19 07:40:36,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 155 transitions, 1090 flow, removed 15 selfloop flow, removed 2 redundant places.
[2023-11-19 07:40:36,980 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 303 flow
[2023-11-19 07:40:36,981 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=307, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=303, PETRI_PLACES=63, PETRI_TRANSITIONS=52}
[2023-11-19 07:40:36,981 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 10 predicate places.
[2023-11-19 07:40:36,982 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 303 flow
[2023-11-19 07:40:36,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 127.6) internal successors, (638), 5 states have internal predecessors, (638), 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 07:40:36,982 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:40:36,982 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:40:36,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-11-19 07:40:36,983 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:40:36,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:40:36,984 INFO L85 PathProgramCache]: Analyzing trace with hash -424671521, now seen corresponding path program 1 times
[2023-11-19 07:40:36,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:40:36,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94705193]
[2023-11-19 07:40:36,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:40:36,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:40:37,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:40:37,313 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 07:40:37,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:40:37,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94705193]
[2023-11-19 07:40:37,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94705193] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:40:37,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:40:37,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-19 07:40:37,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290578201]
[2023-11-19 07:40:37,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:40:37,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:40:37,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:40:37,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:40:37,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:40:37,336 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 307
[2023-11-19 07:40:37,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 303 flow. Second operand has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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 07:40:37,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:40:37,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 307
[2023-11-19 07:40:37,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:40:39,064 INFO L124 PetriNetUnfolderBase]: 6204/10217 cut-off events.
[2023-11-19 07:40:39,064 INFO L125 PetriNetUnfolderBase]: For 14434/14686 co-relation queries the response was YES.
[2023-11-19 07:40:39,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33232 conditions, 10217 events. 6204/10217 cut-off events. For 14434/14686 co-relation queries the response was YES. Maximal size of possible extension queue 487. Compared 71853 event pairs, 1235 based on Foata normal form. 633/10656 useless extension candidates. Maximal degree in co-relation 33217. Up to 3323 conditions per place.
[2023-11-19 07:40:39,129 INFO L140 encePairwiseOnDemand]: 300/307 looper letters, 87 selfloop transitions, 14 changer transitions 1/117 dead transitions.
[2023-11-19 07:40:39,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 117 transitions, 765 flow
[2023-11-19 07:40:39,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-19 07:40:39,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-11-19 07:40:39,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 871 transitions.
[2023-11-19 07:40:39,134 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4728555917480999
[2023-11-19 07:40:39,134 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 871 transitions.
[2023-11-19 07:40:39,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 871 transitions.
[2023-11-19 07:40:39,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:40:39,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 871 transitions.
[2023-11-19 07:40:39,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 145.16666666666666) internal successors, (871), 6 states have internal predecessors, (871), 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 07:40:39,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 307.0) internal successors, (2149), 7 states have internal predecessors, (2149), 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 07:40:39,144 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 307.0) internal successors, (2149), 7 states have internal predecessors, (2149), 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 07:40:39,144 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 303 flow. Second operand 6 states and 871 transitions.
[2023-11-19 07:40:39,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 117 transitions, 765 flow
[2023-11-19 07:40:39,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 117 transitions, 743 flow, removed 2 selfloop flow, removed 3 redundant places.
[2023-11-19 07:40:39,566 INFO L231 Difference]: Finished difference. Result has 67 places, 56 transitions, 360 flow
[2023-11-19 07:40:39,566 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=307, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=360, PETRI_PLACES=67, PETRI_TRANSITIONS=56}
[2023-11-19 07:40:39,567 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 14 predicate places.
[2023-11-19 07:40:39,567 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 56 transitions, 360 flow
[2023-11-19 07:40:39,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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 07:40:39,567 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:40:39,568 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:40:39,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-11-19 07:40:39,568 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:40:39,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:40:39,568 INFO L85 PathProgramCache]: Analyzing trace with hash -118953208, now seen corresponding path program 1 times
[2023-11-19 07:40:39,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:40:39,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895567813]
[2023-11-19 07:40:39,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:40:39,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:40:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:40:39,889 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 07:40:39,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:40:39,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895567813]
[2023-11-19 07:40:39,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895567813] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:40:39,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:40:39,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:40:39,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000379446]
[2023-11-19 07:40:39,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:40:39,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:40:39,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:40:39,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:40:39,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:40:39,917 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 307
[2023-11-19 07:40:39,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 56 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 131.5) internal successors, (526), 4 states have internal predecessors, (526), 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 07:40:39,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:40:39,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 307
[2023-11-19 07:40:39,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:40:41,854 INFO L124 PetriNetUnfolderBase]: 11052/16764 cut-off events.
[2023-11-19 07:40:41,854 INFO L125 PetriNetUnfolderBase]: For 33394/33394 co-relation queries the response was YES.
[2023-11-19 07:40:41,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61064 conditions, 16764 events. 11052/16764 cut-off events. For 33394/33394 co-relation queries the response was YES. Maximal size of possible extension queue 561. Compared 104661 event pairs, 3403 based on Foata normal form. 13/16777 useless extension candidates. Maximal degree in co-relation 61048. Up to 8937 conditions per place.
[2023-11-19 07:40:41,946 INFO L140 encePairwiseOnDemand]: 301/307 looper letters, 74 selfloop transitions, 8 changer transitions 21/103 dead transitions.
[2023-11-19 07:40:41,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 103 transitions, 839 flow
[2023-11-19 07:40:41,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:40:41,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-11-19 07:40:41,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 565 transitions.
[2023-11-19 07:40:41,950 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4600977198697068
[2023-11-19 07:40:41,950 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 565 transitions.
[2023-11-19 07:40:41,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 565 transitions.
[2023-11-19 07:40:41,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:40:41,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 565 transitions.
[2023-11-19 07:40:41,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 141.25) internal successors, (565), 4 states have internal predecessors, (565), 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 07:40:41,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 307.0) internal successors, (1535), 5 states have internal predecessors, (1535), 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 07:40:41,958 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 307.0) internal successors, (1535), 5 states have internal predecessors, (1535), 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 07:40:41,958 INFO L175 Difference]: Start difference. First operand has 67 places, 56 transitions, 360 flow. Second operand 4 states and 565 transitions.
[2023-11-19 07:40:41,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 103 transitions, 839 flow
[2023-11-19 07:40:42,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 103 transitions, 779 flow, removed 16 selfloop flow, removed 3 redundant places.
[2023-11-19 07:40:42,829 INFO L231 Difference]: Finished difference. Result has 69 places, 52 transitions, 324 flow
[2023-11-19 07:40:42,829 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=307, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=69, PETRI_TRANSITIONS=52}
[2023-11-19 07:40:42,830 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 16 predicate places.
[2023-11-19 07:40:42,831 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 52 transitions, 324 flow
[2023-11-19 07:40:42,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.5) internal successors, (526), 4 states have internal predecessors, (526), 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 07:40:42,832 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:40:42,832 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:40:42,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-11-19 07:40:42,833 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] ===
[2023-11-19 07:40:42,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:40:42,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1041440640, now seen corresponding path program 1 times
[2023-11-19 07:40:42,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:40:42,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772666647]
[2023-11-19 07:40:42,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:40:42,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:40:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat