./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 0e0057cc
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccacae3-775f-47cd-9089-b16411d05b1e/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccacae3-775f-47cd-9089-b16411d05b1e/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccacae3-775f-47cd-9089-b16411d05b1e/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccacae3-775f-47cd-9089-b16411d05b1e/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccacae3-775f-47cd-9089-b16411d05b1e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccacae3-775f-47cd-9089-b16411d05b1e/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-0e0057c
[2023-11-26 11:45:44,377 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-26 11:45:44,522 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccacae3-775f-47cd-9089-b16411d05b1e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2023-11-26 11:45:44,531 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-26 11:45:44,533 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-26 11:45:44,581 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-26 11:45:44,582 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-26 11:45:44,583 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-26 11:45:44,584 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-26 11:45:44,590 INFO L153 SettingsManager]: * Use memory slicer=true
[2023-11-26 11:45:44,591 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-26 11:45:44,592 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-26 11:45:44,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-26 11:45:44,595 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-26 11:45:44,595 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-26 11:45:44,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-26 11:45:44,597 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-26 11:45:44,597 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-26 11:45:44,598 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-26 11:45:44,599 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-26 11:45:44,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-26 11:45:44,600 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-26 11:45:44,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-26 11:45:44,601 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-26 11:45:44,602 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-26 11:45:44,602 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-26 11:45:44,603 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-26 11:45:44,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-26 11:45:44,604 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-26 11:45:44,605 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-26 11:45:44,606 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-26 11:45:44,607 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-11-26 11:45:44,607 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-26 11:45:44,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-26 11:45:44,608 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-26 11:45:44,608 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-26 11:45:44,609 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-26 11:45:44,609 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-26 11:45:44,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-26 11:45:44,610 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-26 11:45:44,610 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-26 11:45:44,610 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-26 11:45:44,611 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-26 11:45:44,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-26 11:45:44,612 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_cccacae3-775f-47cd-9089-b16411d05b1e/bin/uautomizer-verify-VRDe98Ueme/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccacae3-775f-47cd-9089-b16411d05b1e/bin/uautomizer-verify-VRDe98Ueme
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b
[2023-11-26 11:45:45,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-26 11:45:45,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-26 11:45:45,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-26 11:45:45,040 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-26 11:45:45,040 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-26 11:45:45,042 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccacae3-775f-47cd-9089-b16411d05b1e/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i
[2023-11-26 11:45:48,482 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-26 11:45:48,793 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-26 11:45:48,803 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccacae3-775f-47cd-9089-b16411d05b1e/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i
[2023-11-26 11:45:48,826 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccacae3-775f-47cd-9089-b16411d05b1e/bin/uautomizer-verify-VRDe98Ueme/data/39b08957b/ea68159448754c759aadb62a67e17160/FLAGcbbdee6d3
[2023-11-26 11:45:48,844 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccacae3-775f-47cd-9089-b16411d05b1e/bin/uautomizer-verify-VRDe98Ueme/data/39b08957b/ea68159448754c759aadb62a67e17160
[2023-11-26 11:45:48,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-26 11:45:48,849 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-26 11:45:48,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-26 11:45:48,851 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-26 11:45:48,857 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-26 11:45:48,858 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:45:48" (1/1) ...
[2023-11-26 11:45:48,859 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1114c716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:48, skipping insertion in model container
[2023-11-26 11:45:48,859 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:45:48" (1/1) ...
[2023-11-26 11:45:48,915 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-26 11:45:49,466 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-26 11:45:49,484 INFO L202 MainTranslator]: Completed pre-run
[2023-11-26 11:45:49,564 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-26 11:45:49,611 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler.
[2023-11-26 11:45:49,611 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler.
[2023-11-26 11:45:49,619 INFO L206 MainTranslator]: Completed translation
[2023-11-26 11:45:49,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:49 WrapperNode
[2023-11-26 11:45:49,620 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-26 11:45:49,621 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-26 11:45:49,621 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-26 11:45:49,622 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-26 11:45:49,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:49" (1/1) ...
[2023-11-26 11:45:49,667 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:49" (1/1) ...
[2023-11-26 11:45:49,708 INFO L138 Inliner]: procedures = 174, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 120
[2023-11-26 11:45:49,708 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-26 11:45:49,709 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-26 11:45:49,709 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-26 11:45:49,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-26 11:45:49,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:49" (1/1) ...
[2023-11-26 11:45:49,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:49" (1/1) ...
[2023-11-26 11:45:49,741 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:49" (1/1) ...
[2023-11-26 11:45:49,764 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1].
[2023-11-26 11:45:49,764 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:49" (1/1) ...
[2023-11-26 11:45:49,764 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:49" (1/1) ...
[2023-11-26 11:45:49,780 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:49" (1/1) ...
[2023-11-26 11:45:49,790 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:49" (1/1) ...
[2023-11-26 11:45:49,792 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:49" (1/1) ...
[2023-11-26 11:45:49,794 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:49" (1/1) ...
[2023-11-26 11:45:49,803 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-26 11:45:49,804 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-26 11:45:49,804 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-26 11:45:49,804 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-26 11:45:49,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:49" (1/1) ...
[2023-11-26 11:45:49,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-26 11:45:49,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccacae3-775f-47cd-9089-b16411d05b1e/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:45:49,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccacae3-775f-47cd-9089-b16411d05b1e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-11-26 11:45:49,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccacae3-775f-47cd-9089-b16411d05b1e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-11-26 11:45:49,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2023-11-26 11:45:49,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2023-11-26 11:45:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2023-11-26 11:45:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3
[2023-11-26 11:45:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4
[2023-11-26 11:45:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2023-11-26 11:45:49,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2023-11-26 11:45:49,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2023-11-26 11:45:49,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2023-11-26 11:45:49,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4
[2023-11-26 11:45:49,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2023-11-26 11:45:49,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-26 11:45:49,893 INFO L130 BoogieDeclarations]: Found specification of procedure reader
[2023-11-26 11:45:49,893 INFO L138 BoogieDeclarations]: Found implementation of procedure reader
[2023-11-26 11:45:49,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-26 11:45:49,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-26 11:45:49,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-11-26 11:45:49,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2023-11-26 11:45:49,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2023-11-26 11:45:49,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3
[2023-11-26 11:45:49,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4
[2023-11-26 11:45:49,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2023-11-26 11:45:49,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-26 11:45:49,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-26 11:45:49,895 INFO L130 BoogieDeclarations]: Found specification of procedure writer
[2023-11-26 11:45:49,896 INFO L138 BoogieDeclarations]: Found implementation of procedure writer
[2023-11-26 11:45:49,897 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-11-26 11:45:50,086 INFO L241 CfgBuilder]: Building ICFG
[2023-11-26 11:45:50,088 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-26 11:45:50,367 INFO L282 CfgBuilder]: Performing block encoding
[2023-11-26 11:45:50,538 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-26 11:45:50,539 INFO L309 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-26 11:45:50,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:45:50 BoogieIcfgContainer
[2023-11-26 11:45:50,539 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-26 11:45:50,542 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-26 11:45:50,542 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-26 11:45:50,546 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-26 11:45:50,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:45:48" (1/3) ...
[2023-11-26 11:45:50,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49fca896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:45:50, skipping insertion in model container
[2023-11-26 11:45:50,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:49" (2/3) ...
[2023-11-26 11:45:50,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49fca896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:45:50, skipping insertion in model container
[2023-11-26 11:45:50,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:45:50" (3/3) ...
[2023-11-26 11:45:50,549 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i
[2023-11-26 11:45:50,558 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-11-26 11:45:50,570 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-26 11:45:50,571 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations.
[2023-11-26 11:45:50,571 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-11-26 11:45:50,670 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2023-11-26 11:45:50,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 57 transitions, 142 flow
[2023-11-26 11:45:50,761 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events.
[2023-11-26 11:45:50,761 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES.
[2023-11-26 11:45:50,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 53 events. 0/53 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 123 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place.
[2023-11-26 11:45:50,764 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 57 transitions, 142 flow
[2023-11-26 11:45:50,769 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 51 transitions, 123 flow
[2023-11-26 11:45:50,780 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-26 11:45:50,788 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@64eb9ddf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-26 11:45:50,789 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations.
[2023-11-26 11:45:50,797 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-26 11:45:50,798 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events.
[2023-11-26 11:45:50,798 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-26 11:45:50,798 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-26 11:45:50,799 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-11-26 11:45:50,799 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] ===
[2023-11-26 11:45:50,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:45:50,805 INFO L85 PathProgramCache]: Analyzing trace with hash -118027584, now seen corresponding path program 1 times
[2023-11-26 11:45:50,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:45:50,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321078518]
[2023-11-26 11:45:50,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:45:50,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:45:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:45:51,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:45:51,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:45:51,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321078518]
[2023-11-26 11:45:51,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321078518] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:45:51,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:45:51,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-26 11:45:51,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204038819]
[2023-11-26 11:45:51,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:45:51,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-26 11:45:51,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:45:51,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-26 11:45:51,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 11:45:51,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 57
[2023-11-26 11:45:51,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 51 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:45:51,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-26 11:45:51,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 57
[2023-11-26 11:45:51,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-26 11:45:54,151 INFO L124 PetriNetUnfolderBase]: 9389/15498 cut-off events.
[2023-11-26 11:45:54,151 INFO L125 PetriNetUnfolderBase]: For 1579/1579 co-relation queries the response was YES.
[2023-11-26 11:45:54,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30248 conditions, 15498 events. 9389/15498 cut-off events. For 1579/1579 co-relation queries the response was YES. Maximal size of possible extension queue 911. Compared 121826 event pairs, 3907 based on Foata normal form. 0/13457 useless extension candidates. Maximal degree in co-relation 22436. Up to 7369 conditions per place.
[2023-11-26 11:45:54,366 INFO L140 encePairwiseOnDemand]: 42/57 looper letters, 55 selfloop transitions, 7 changer transitions 0/76 dead transitions.
[2023-11-26 11:45:54,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 76 transitions, 312 flow
[2023-11-26 11:45:54,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-26 11:45:54,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-26 11:45:54,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 124 transitions.
[2023-11-26 11:45:54,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7251461988304093
[2023-11-26 11:45:54,385 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 124 transitions.
[2023-11-26 11:45:54,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 124 transitions.
[2023-11-26 11:45:54,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-26 11:45:54,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 124 transitions.
[2023-11-26 11:45:54,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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)
[2023-11-26 11:45:54,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 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)
[2023-11-26 11:45:54,403 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 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)
[2023-11-26 11:45:54,406 INFO L175 Difference]: Start difference. First operand has 64 places, 51 transitions, 123 flow. Second operand 3 states and 124 transitions.
[2023-11-26 11:45:54,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 76 transitions, 312 flow
[2023-11-26 11:45:54,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 76 transitions, 290 flow, removed 0 selfloop flow, removed 7 redundant places.
[2023-11-26 11:45:54,468 INFO L231 Difference]: Finished difference. Result has 61 places, 57 transitions, 178 flow
[2023-11-26 11:45:54,471 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=61, PETRI_TRANSITIONS=57}
[2023-11-26 11:45:54,476 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -3 predicate places.
[2023-11-26 11:45:54,477 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 57 transitions, 178 flow
[2023-11-26 11:45:54,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:45:54,478 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-26 11:45:54,478 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:45:54,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-26 11:45:54,479 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] ===
[2023-11-26 11:45:54,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:45:54,481 INFO L85 PathProgramCache]: Analyzing trace with hash -192147741, now seen corresponding path program 1 times
[2023-11-26 11:45:54,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:45:54,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913821617]
[2023-11-26 11:45:54,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:45:54,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:45:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:45:54,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:45:54,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:45:54,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913821617]
[2023-11-26 11:45:54,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913821617] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:45:54,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:45:54,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-26 11:45:54,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167111027]
[2023-11-26 11:45:54,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:45:54,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-26 11:45:54,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:45:54,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-26 11:45:54,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-26 11:45:54,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 57
[2023-11-26 11:45:54,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 57 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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)
[2023-11-26 11:45:54,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-26 11:45:54,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 57
[2023-11-26 11:45:54,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-26 11:45:56,426 INFO L124 PetriNetUnfolderBase]: 6126/10954 cut-off events.
[2023-11-26 11:45:56,427 INFO L125 PetriNetUnfolderBase]: For 3316/3325 co-relation queries the response was YES.
[2023-11-26 11:45:56,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24386 conditions, 10954 events. 6126/10954 cut-off events. For 3316/3325 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 88966 event pairs, 1545 based on Foata normal form. 626/10403 useless extension candidates. Maximal degree in co-relation 4518. Up to 3249 conditions per place.
[2023-11-26 11:45:56,525 INFO L140 encePairwiseOnDemand]: 42/57 looper letters, 72 selfloop transitions, 11 changer transitions 6/103 dead transitions.
[2023-11-26 11:45:56,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 103 transitions, 476 flow
[2023-11-26 11:45:56,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-26 11:45:56,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-11-26 11:45:56,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 167 transitions.
[2023-11-26 11:45:56,539 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7324561403508771
[2023-11-26 11:45:56,539 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 167 transitions.
[2023-11-26 11:45:56,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 167 transitions.
[2023-11-26 11:45:56,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-26 11:45:56,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 167 transitions.
[2023-11-26 11:45:56,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 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)
[2023-11-26 11:45:56,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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)
[2023-11-26 11:45:56,548 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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)
[2023-11-26 11:45:56,553 INFO L175 Difference]: Start difference. First operand has 61 places, 57 transitions, 178 flow. Second operand 4 states and 167 transitions.
[2023-11-26 11:45:56,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 103 transitions, 476 flow
[2023-11-26 11:45:56,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 103 transitions, 462 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-26 11:45:56,573 INFO L231 Difference]: Finished difference. Result has 64 places, 59 transitions, 227 flow
[2023-11-26 11:45:56,574 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=227, PETRI_PLACES=64, PETRI_TRANSITIONS=59}
[2023-11-26 11:45:56,575 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 0 predicate places.
[2023-11-26 11:45:56,575 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 59 transitions, 227 flow
[2023-11-26 11:45:56,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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)
[2023-11-26 11:45:56,576 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-26 11:45:56,576 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:45:56,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-26 11:45:56,577 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] ===
[2023-11-26 11:45:56,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:45:56,580 INFO L85 PathProgramCache]: Analyzing trace with hash -192147740, now seen corresponding path program 1 times
[2023-11-26 11:45:56,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:45:56,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528218936]
[2023-11-26 11:45:56,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:45:56,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:45:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:45:56,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:45:56,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:45:56,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528218936]
[2023-11-26 11:45:56,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528218936] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:45:56,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:45:56,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-26 11:45:56,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964241700]
[2023-11-26 11:45:56,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:45:56,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-26 11:45:56,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:45:56,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-26 11:45:56,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-11-26 11:45:56,725 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 57
[2023-11-26 11:45:56,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 59 transitions, 227 flow. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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)
[2023-11-26 11:45:56,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-26 11:45:56,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 57
[2023-11-26 11:45:56,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-26 11:45:58,272 INFO L124 PetriNetUnfolderBase]: 4742/8862 cut-off events.
[2023-11-26 11:45:58,272 INFO L125 PetriNetUnfolderBase]: For 5180/5183 co-relation queries the response was YES.
[2023-11-26 11:45:58,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20891 conditions, 8862 events. 4742/8862 cut-off events. For 5180/5183 co-relation queries the response was YES. Maximal size of possible extension queue 497. Compared 72827 event pairs, 1447 based on Foata normal form. 419/9110 useless extension candidates. Maximal degree in co-relation 3921. Up to 2780 conditions per place.
[2023-11-26 11:45:58,343 INFO L140 encePairwiseOnDemand]: 46/57 looper letters, 64 selfloop transitions, 11 changer transitions 2/91 dead transitions.
[2023-11-26 11:45:58,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 91 transitions, 456 flow
[2023-11-26 11:45:58,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-26 11:45:58,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-11-26 11:45:58,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 151 transitions.
[2023-11-26 11:45:58,347 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6622807017543859
[2023-11-26 11:45:58,347 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 151 transitions.
[2023-11-26 11:45:58,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 151 transitions.
[2023-11-26 11:45:58,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-26 11:45:58,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 151 transitions.
[2023-11-26 11:45:58,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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)
[2023-11-26 11:45:58,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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)
[2023-11-26 11:45:58,352 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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)
[2023-11-26 11:45:58,352 INFO L175 Difference]: Start difference. First operand has 64 places, 59 transitions, 227 flow. Second operand 4 states and 151 transitions.
[2023-11-26 11:45:58,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 91 transitions, 456 flow
[2023-11-26 11:45:58,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 91 transitions, 449 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-26 11:45:58,362 INFO L231 Difference]: Finished difference. Result has 65 places, 57 transitions, 240 flow
[2023-11-26 11:45:58,362 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=240, PETRI_PLACES=65, PETRI_TRANSITIONS=57}
[2023-11-26 11:45:58,364 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 1 predicate places.
[2023-11-26 11:45:58,364 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 57 transitions, 240 flow
[2023-11-26 11:45:58,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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)
[2023-11-26 11:45:58,365 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-26 11:45:58,365 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:45:58,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-26 11:45:58,366 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] ===
[2023-11-26 11:45:58,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:45:58,367 INFO L85 PathProgramCache]: Analyzing trace with hash 328609449, now seen corresponding path program 1 times
[2023-11-26 11:45:58,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:45:58,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409974310]
[2023-11-26 11:45:58,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:45:58,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:45:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:45:58,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:45:58,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:45:58,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409974310]
[2023-11-26 11:45:58,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409974310] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:45:58,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:45:58,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-26 11:45:58,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941786040]
[2023-11-26 11:45:58,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:45:58,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-26 11:45:58,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:45:58,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-26 11:45:58,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 11:45:58,487 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 57
[2023-11-26 11:45:58,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 57 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:45:58,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-26 11:45:58,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 57
[2023-11-26 11:45:58,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-26 11:45:59,410 INFO L124 PetriNetUnfolderBase]: 4063/7245 cut-off events.
[2023-11-26 11:45:59,410 INFO L125 PetriNetUnfolderBase]: For 7112/7112 co-relation queries the response was YES.
[2023-11-26 11:45:59,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18237 conditions, 7245 events. 4063/7245 cut-off events. For 7112/7112 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 55167 event pairs, 3699 based on Foata normal form. 200/7171 useless extension candidates. Maximal degree in co-relation 3903. Up to 6194 conditions per place.
[2023-11-26 11:45:59,471 INFO L140 encePairwiseOnDemand]: 54/57 looper letters, 36 selfloop transitions, 1 changer transitions 2/53 dead transitions.
[2023-11-26 11:45:59,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 53 transitions, 286 flow
[2023-11-26 11:45:59,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-26 11:45:59,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-26 11:45:59,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions.
[2023-11-26 11:45:59,473 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.52046783625731
[2023-11-26 11:45:59,473 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 89 transitions.
[2023-11-26 11:45:59,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 89 transitions.
[2023-11-26 11:45:59,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-26 11:45:59,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 89 transitions.
[2023-11-26 11:45:59,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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)
[2023-11-26 11:45:59,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 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)
[2023-11-26 11:45:59,475 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 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)
[2023-11-26 11:45:59,476 INFO L175 Difference]: Start difference. First operand has 65 places, 57 transitions, 240 flow. Second operand 3 states and 89 transitions.
[2023-11-26 11:45:59,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 53 transitions, 286 flow
[2023-11-26 11:45:59,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 53 transitions, 264 flow, removed 0 selfloop flow, removed 3 redundant places.
[2023-11-26 11:45:59,489 INFO L231 Difference]: Finished difference. Result has 62 places, 51 transitions, 176 flow
[2023-11-26 11:45:59,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=62, PETRI_TRANSITIONS=51}
[2023-11-26 11:45:59,491 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -2 predicate places.
[2023-11-26 11:45:59,491 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 176 flow
[2023-11-26 11:45:59,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:45:59,492 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-26 11:45:59,492 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:45:59,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-26 11:45:59,492 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] ===
[2023-11-26 11:45:59,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:45:59,493 INFO L85 PathProgramCache]: Analyzing trace with hash 735084894, now seen corresponding path program 1 times
[2023-11-26 11:45:59,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:45:59,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306135882]
[2023-11-26 11:45:59,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:45:59,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:45:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:45:59,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:45:59,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:45:59,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306135882]
[2023-11-26 11:45:59,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306135882] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:45:59,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:45:59,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-26 11:45:59,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11042098]
[2023-11-26 11:45:59,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:45:59,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-26 11:45:59,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:45:59,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-26 11:45:59,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-26 11:45:59,562 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 57
[2023-11-26 11:45:59,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:45:59,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-26 11:45:59,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 57
[2023-11-26 11:45:59,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-26 11:46:00,246 INFO L124 PetriNetUnfolderBase]: 3283/5833 cut-off events.
[2023-11-26 11:46:00,247 INFO L125 PetriNetUnfolderBase]: For 3263/3263 co-relation queries the response was YES.
[2023-11-26 11:46:00,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13800 conditions, 5833 events. 3283/5833 cut-off events. For 3263/3263 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 42022 event pairs, 3045 based on Foata normal form. 104/5683 useless extension candidates. Maximal degree in co-relation 13789. Up to 5022 conditions per place.
[2023-11-26 11:46:00,292 INFO L140 encePairwiseOnDemand]: 54/57 looper letters, 34 selfloop transitions, 1 changer transitions 0/49 dead transitions.
[2023-11-26 11:46:00,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 49 transitions, 234 flow
[2023-11-26 11:46:00,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-26 11:46:00,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-26 11:46:00,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions.
[2023-11-26 11:46:00,294 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5087719298245614
[2023-11-26 11:46:00,294 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 87 transitions.
[2023-11-26 11:46:00,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 87 transitions.
[2023-11-26 11:46:00,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-26 11:46:00,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 87 transitions.
[2023-11-26 11:46:00,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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)
[2023-11-26 11:46:00,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 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)
[2023-11-26 11:46:00,297 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 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)
[2023-11-26 11:46:00,297 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 176 flow. Second operand 3 states and 87 transitions.
[2023-11-26 11:46:00,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 49 transitions, 234 flow
[2023-11-26 11:46:00,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 49 transitions, 233 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-26 11:46:00,302 INFO L231 Difference]: Finished difference. Result has 61 places, 49 transitions, 165 flow
[2023-11-26 11:46:00,302 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=165, PETRI_PLACES=61, PETRI_TRANSITIONS=49}
[2023-11-26 11:46:00,303 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -3 predicate places.
[2023-11-26 11:46:00,303 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 49 transitions, 165 flow
[2023-11-26 11:46:00,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-26 11:46:00,304 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-26 11:46:00,304 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]
[2023-11-26 11:46:00,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-26 11:46:00,305 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] ===
[2023-11-26 11:46:00,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:46:00,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1824890761, now seen corresponding path program 1 times
[2023-11-26 11:46:00,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:46:00,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139916301]
[2023-11-26 11:46:00,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:46:00,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:46:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:46:00,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:46:00,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:46:00,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139916301]
[2023-11-26 11:46:00,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139916301] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:46:00,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:46:00,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-26 11:46:00,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262183120]
[2023-11-26 11:46:00,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:46:00,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-26 11:46:00,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:46:00,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-26 11:46:00,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-26 11:46:00,470 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 57
[2023-11-26 11:46:00,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 49 transitions, 165 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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)
[2023-11-26 11:46:00,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-26 11:46:00,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 57
[2023-11-26 11:46:00,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-26 11:46:01,440 INFO L124 PetriNetUnfolderBase]: 3527/7139 cut-off events.
[2023-11-26 11:46:01,440 INFO L125 PetriNetUnfolderBase]: For 3134/3137 co-relation queries the response was YES.
[2023-11-26 11:46:01,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15559 conditions, 7139 events. 3527/7139 cut-off events. For 3134/3137 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 59994 event pairs, 1061 based on Foata normal form. 107/7157 useless extension candidates. Maximal degree in co-relation 15547. Up to 1831 conditions per place.
[2023-11-26 11:46:01,495 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 58 selfloop transitions, 7 changer transitions 17/96 dead transitions.
[2023-11-26 11:46:01,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 96 transitions, 454 flow
[2023-11-26 11:46:01,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-11-26 11:46:01,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-11-26 11:46:01,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions.
[2023-11-26 11:46:01,497 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6105263157894737
[2023-11-26 11:46:01,498 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 174 transitions.
[2023-11-26 11:46:01,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 174 transitions.
[2023-11-26 11:46:01,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-26 11:46:01,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 174 transitions.
[2023-11-26 11:46:01,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 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)
[2023-11-26 11:46:01,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 57.0) internal successors, (342), 6 states have internal predecessors, (342), 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)
[2023-11-26 11:46:01,502 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 57.0) internal successors, (342), 6 states have internal predecessors, (342), 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)
[2023-11-26 11:46:01,503 INFO L175 Difference]: Start difference. First operand has 61 places, 49 transitions, 165 flow. Second operand 5 states and 174 transitions.
[2023-11-26 11:46:01,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 96 transitions, 454 flow
[2023-11-26 11:46:01,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 96 transitions, 453 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-26 11:46:01,511 INFO L231 Difference]: Finished difference. Result has 65 places, 49 transitions, 190 flow
[2023-11-26 11:46:01,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=190, PETRI_PLACES=65, PETRI_TRANSITIONS=49}
[2023-11-26 11:46:01,513 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 1 predicate places.
[2023-11-26 11:46:01,513 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 49 transitions, 190 flow
[2023-11-26 11:46:01,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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)
[2023-11-26 11:46:01,514 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-26 11:46:01,514 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]
[2023-11-26 11:46:01,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-26 11:46:01,514 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] ===
[2023-11-26 11:46:01,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:46:01,515 INFO L85 PathProgramCache]: Analyzing trace with hash 180848675, now seen corresponding path program 2 times
[2023-11-26 11:46:01,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:46:01,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593913584]
[2023-11-26 11:46:01,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:46:01,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:46:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:46:01,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-26 11:46:01,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:46:01,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593913584]
[2023-11-26 11:46:01,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593913584] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:46:01,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:46:01,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-26 11:46:01,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515377373]
[2023-11-26 11:46:01,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:46:01,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-26 11:46:01,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:46:01,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-26 11:46:01,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-26 11:46:01,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 57
[2023-11-26 11:46:01,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 49 transitions, 190 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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)
[2023-11-26 11:46:01,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-26 11:46:01,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 57
[2023-11-26 11:46:01,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-26 11:46:02,460 INFO L124 PetriNetUnfolderBase]: 2631/5511 cut-off events.
[2023-11-26 11:46:02,460 INFO L125 PetriNetUnfolderBase]: For 4841/4844 co-relation queries the response was YES.
[2023-11-26 11:46:02,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12581 conditions, 5511 events. 2631/5511 cut-off events. For 4841/4844 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 44602 event pairs, 733 based on Foata normal form. 107/5567 useless extension candidates. Maximal degree in co-relation 12567. Up to 1724 conditions per place.
[2023-11-26 11:46:02,496 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 0 selfloop transitions, 0 changer transitions 81/81 dead transitions.
[2023-11-26 11:46:02,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 81 transitions, 384 flow
[2023-11-26 11:46:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-11-26 11:46:02,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-11-26 11:46:02,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 159 transitions.
[2023-11-26 11:46:02,498 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5578947368421052
[2023-11-26 11:46:02,499 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 159 transitions.
[2023-11-26 11:46:02,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 159 transitions.
[2023-11-26 11:46:02,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-26 11:46:02,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 159 transitions.
[2023-11-26 11:46:02,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 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)
[2023-11-26 11:46:02,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 57.0) internal successors, (342), 6 states have internal predecessors, (342), 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)
[2023-11-26 11:46:02,502 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 57.0) internal successors, (342), 6 states have internal predecessors, (342), 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)
[2023-11-26 11:46:02,502 INFO L175 Difference]: Start difference. First operand has 65 places, 49 transitions, 190 flow. Second operand 5 states and 159 transitions.
[2023-11-26 11:46:02,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 81 transitions, 384 flow
[2023-11-26 11:46:02,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 81 transitions, 359 flow, removed 2 selfloop flow, removed 5 redundant places.
[2023-11-26 11:46:02,511 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow
[2023-11-26 11:46:02,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0}
[2023-11-26 11:46:02,513 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -3 predicate places.
[2023-11-26 11:46:02,513 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow
[2023-11-26 11:46:02,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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)
[2023-11-26 11:46:02,517 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining)
[2023-11-26 11:46:02,517 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining)
[2023-11-26 11:46:02,518 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining)
[2023-11-26 11:46:02,518 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining)
[2023-11-26 11:46:02,519 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 16 remaining)
[2023-11-26 11:46:02,519 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 16 remaining)
[2023-11-26 11:46:02,519 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 16 remaining)
[2023-11-26 11:46:02,519 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining)
[2023-11-26 11:46:02,519 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining)
[2023-11-26 11:46:02,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining)
[2023-11-26 11:46:02,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining)
[2023-11-26 11:46:02,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining)
[2023-11-26 11:46:02,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining)
[2023-11-26 11:46:02,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining)
[2023-11-26 11:46:02,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining)
[2023-11-26 11:46:02,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining)
[2023-11-26 11:46:02,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-11-26 11:46:02,522 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1]
[2023-11-26 11:46:02,530 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2023-11-26 11:46:02,530 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-26 11:46:02,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:46:02 BasicIcfg
[2023-11-26 11:46:02,542 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-26 11:46:02,543 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-26 11:46:02,543 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-26 11:46:02,543 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-26 11:46:02,545 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:45:50" (3/4) ...
[2023-11-26 11:46:02,547 INFO L137 WitnessPrinter]: Generating witness for correct program
[2023-11-26 11:46:02,550 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reader
[2023-11-26 11:46:02,551 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure writer
[2023-11-26 11:46:02,561 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges
[2023-11-26 11:46:02,562 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges
[2023-11-26 11:46:02,562 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2023-11-26 11:46:02,563 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2023-11-26 11:46:02,665 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccacae3-775f-47cd-9089-b16411d05b1e/bin/uautomizer-verify-VRDe98Ueme/witness.graphml
[2023-11-26 11:46:02,666 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccacae3-775f-47cd-9089-b16411d05b1e/bin/uautomizer-verify-VRDe98Ueme/witness.yml
[2023-11-26 11:46:02,666 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-26 11:46:02,667 INFO L158 Benchmark]: Toolchain (without parser) took 13817.94ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 97.1MB in the beginning and 989.2MB in the end (delta: -892.1MB). Peak memory consumption was 496.6MB. Max. memory is 16.1GB.
[2023-11-26 11:46:02,667 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-26 11:46:02,668 INFO L158 Benchmark]: CACSL2BoogieTranslator took 769.65ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 76.6MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
[2023-11-26 11:46:02,668 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.43ms. Allocated memory is still 142.6MB. Free memory was 76.6MB in the beginning and 74.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-26 11:46:02,668 INFO L158 Benchmark]: Boogie Preprocessor took 94.37ms. Allocated memory is still 142.6MB. Free memory was 74.4MB in the beginning and 71.9MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-11-26 11:46:02,669 INFO L158 Benchmark]: RCFGBuilder took 735.38ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 71.9MB in the beginning and 129.5MB in the end (delta: -57.6MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB.
[2023-11-26 11:46:02,669 INFO L158 Benchmark]: TraceAbstraction took 12000.48ms. Allocated memory was 182.5MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 129.5MB in the beginning and 993.4MB in the end (delta: -863.9MB). Peak memory consumption was 483.6MB. Max. memory is 16.1GB.
[2023-11-26 11:46:02,670 INFO L158 Benchmark]: Witness Printer took 123.00ms. Allocated memory is still 1.5GB. Free memory was 993.4MB in the beginning and 989.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-11-26 11:46:02,674 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 769.65ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 76.6MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 87.43ms. Allocated memory is still 142.6MB. Free memory was 76.6MB in the beginning and 74.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 94.37ms. Allocated memory is still 142.6MB. Free memory was 74.4MB in the beginning and 71.9MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* RCFGBuilder took 735.38ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 71.9MB in the beginning and 129.5MB in the end (delta: -57.6MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB.
* TraceAbstraction took 12000.48ms. Allocated memory was 182.5MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 129.5MB in the beginning and 993.4MB in the end (delta: -863.9MB). Peak memory consumption was 483.6MB. Max. memory is 16.1GB.
* Witness Printer took 123.00ms. Allocated memory is still 1.5GB. Free memory was 993.4MB in the beginning and 989.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 711]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 711]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 714]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 714]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 7 procedures, 82 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 10.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 252 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 252 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 695 IncrementalHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 0 mSDtfsCounter, 695 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=240occurred in iteration=3, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 259 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
4 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2023-11-26 11:46:02,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cccacae3-775f-47cd-9089-b16411d05b1e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE