./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-sum-array-hom.wvr.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-sum-array-hom.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu --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 37731ec014f4053387ac8b56c0764486866d63670c206743514c9636df9b594a
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:45:08,349 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:45:08,465 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2023-11-19 07:45:08,474 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:45:08,475 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:45:08,515 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:45:08,517 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:45:08,518 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:45:08,519 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:45:08,524 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:45:08,526 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:45:08,526 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:45:08,527 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:45:08,529 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:45:08,529 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:45:08,530 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:45:08,530 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:45:08,531 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:45:08,531 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:45:08,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:45:08,532 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:45:08,533 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:45:08,534 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-19 07:45:08,534 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:45:08,535 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:45:08,535 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:45:08,536 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:45:08,537 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:45:08,537 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:45:08,538 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:45:08,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:45:08,540 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:45:08,540 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:45:08,540 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:45:08,541 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:45:08,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:45:08,541 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:45:08,542 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:45:08,542 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:45:08,542 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:45:08,542 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:45:08,543 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_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37731ec014f4053387ac8b56c0764486866d63670c206743514c9636df9b594a
[2023-11-19 07:45:08,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:45:08,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:45:08,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:45:08,904 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:45:08,905 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:45:08,907 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/popl20-more-sum-array-hom.wvr.c
[2023-11-19 07:45:11,895 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:45:12,170 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:45:12,171 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/sv-benchmarks/c/weaver/popl20-more-sum-array-hom.wvr.c
[2023-11-19 07:45:12,179 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/data/410aa738d/2ce8349db14c4742866f303f28c3cbf8/FLAG22e25b3f2
[2023-11-19 07:45:12,192 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/data/410aa738d/2ce8349db14c4742866f303f28c3cbf8
[2023-11-19 07:45:12,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:45:12,195 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:45:12,197 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:45:12,197 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:45:12,202 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:45:12,203 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:12" (1/1) ...
[2023-11-19 07:45:12,204 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@694adf96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:12, skipping insertion in model container
[2023-11-19 07:45:12,205 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:12" (1/1) ...
[2023-11-19 07:45:12,230 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:45:12,518 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:45:12,529 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:45:12,583 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:45:12,602 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:45:12,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:12 WrapperNode
[2023-11-19 07:45:12,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:45:12,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:45:12,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:45:12,605 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:45:12,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:12" (1/1) ...
[2023-11-19 07:45:12,634 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:12" (1/1) ...
[2023-11-19 07:45:12,672 INFO L138 Inliner]: procedures = 25, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 109
[2023-11-19 07:45:12,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:45:12,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:45:12,675 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:45:12,675 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:45:12,685 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:12" (1/1) ...
[2023-11-19 07:45:12,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:12" (1/1) ...
[2023-11-19 07:45:12,700 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:12" (1/1) ...
[2023-11-19 07:45:12,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:12" (1/1) ...
[2023-11-19 07:45:12,711 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:12" (1/1) ...
[2023-11-19 07:45:12,724 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:12" (1/1) ...
[2023-11-19 07:45:12,726 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:12" (1/1) ...
[2023-11-19 07:45:12,737 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:12" (1/1) ...
[2023-11-19 07:45:12,740 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:45:12,741 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:45:12,744 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:45:12,745 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:45:12,745 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:12" (1/1) ...
[2023-11-19 07:45:12,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:45:12,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:45:12,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:45:12,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:45:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:45:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:45:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-11-19 07:45:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-11-19 07:45:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2023-11-19 07:45:12,825 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2023-11-19 07:45:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2023-11-19 07:45:12,825 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2023-11-19 07:45:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2023-11-19 07:45:12,826 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2023-11-19 07:45:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:45:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-11-19 07:45:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:45:12,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:45:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:45:12,829 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-11-19 07:45:12,969 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:45:12,972 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:45:13,362 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:45:13,375 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:45:13,375 INFO L302 CfgBuilder]: Removed 4 assume(true) statements.
[2023-11-19 07:45:13,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:13 BoogieIcfgContainer
[2023-11-19 07:45:13,380 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:45:13,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:45:13,383 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:45:13,387 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:45:13,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:45:12" (1/3) ...
[2023-11-19 07:45:13,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@593ffe6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:13, skipping insertion in model container
[2023-11-19 07:45:13,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:12" (2/3) ...
[2023-11-19 07:45:13,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@593ffe6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:13, skipping insertion in model container
[2023-11-19 07:45:13,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:13" (3/3) ...
[2023-11-19 07:45:13,391 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-sum-array-hom.wvr.c
[2023-11-19 07:45:13,401 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-11-19 07:45:13,413 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:45:13,413 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations.
[2023-11-19 07:45:13,414 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-11-19 07:45:13,549 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2023-11-19 07:45:13,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 184 transitions, 389 flow
[2023-11-19 07:45:13,701 INFO L124 PetriNetUnfolderBase]: 12/181 cut-off events.
[2023-11-19 07:45:13,702 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES.
[2023-11-19 07:45:13,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 181 events. 12/181 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 186 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 133. Up to 2 conditions per place.
[2023-11-19 07:45:13,711 INFO L82 GeneralOperation]: Start removeDead. Operand has 182 places, 184 transitions, 389 flow
[2023-11-19 07:45:13,717 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 157 transitions, 329 flow
[2023-11-19 07:45:13,721 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 07:45:13,731 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 157 transitions, 329 flow
[2023-11-19 07:45:13,733 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 157 transitions, 329 flow
[2023-11-19 07:45:13,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 157 transitions, 329 flow
[2023-11-19 07:45:13,806 INFO L124 PetriNetUnfolderBase]: 11/157 cut-off events.
[2023-11-19 07:45:13,806 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-11-19 07:45:13,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 157 events. 11/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 184 event pairs, 0 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 133. Up to 2 conditions per place.
[2023-11-19 07:45:13,816 INFO L119 LiptonReduction]: Number of co-enabled transitions 3240
[2023-11-19 07:45:20,200 INFO L134 LiptonReduction]: Checked pairs total: 3398
[2023-11-19 07:45:20,202 INFO L136 LiptonReduction]: Total number of compositions: 170
[2023-11-19 07:45:20,232 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:45:20,241 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;@27b0a9df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:45:20,242 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations.
[2023-11-19 07:45:20,245 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 07:45:20,245 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events.
[2023-11-19 07:45:20,245 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:45:20,245 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:20,246 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-11-19 07:45:20,247 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] ===
[2023-11-19 07:45:20,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:20,252 INFO L85 PathProgramCache]: Analyzing trace with hash 21744, now seen corresponding path program 1 times
[2023-11-19 07:45:20,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:20,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567790447]
[2023-11-19 07:45:20,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:20,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:20,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:20,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:20,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:20,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567790447]
[2023-11-19 07:45:20,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567790447] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:20,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:45:20,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:45:20,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245522883]
[2023-11-19 07:45:20,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:20,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:45:20,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:20,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:45:20,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:45:20,720 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 354
[2023-11-19 07:45:20,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 30 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:20,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:20,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 354
[2023-11-19 07:45:20,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:21,000 INFO L124 PetriNetUnfolderBase]: 848/1223 cut-off events.
[2023-11-19 07:45:21,001 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES.
[2023-11-19 07:45:21,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2543 conditions, 1223 events. 848/1223 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4372 event pairs, 652 based on Foata normal form. 0/637 useless extension candidates. Maximal degree in co-relation 2150. Up to 1223 conditions per place.
[2023-11-19 07:45:21,020 INFO L140 encePairwiseOnDemand]: 349/354 looper letters, 29 selfloop transitions, 3 changer transitions 0/32 dead transitions.
[2023-11-19 07:45:21,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 32 transitions, 143 flow
[2023-11-19 07:45:21,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:45:21,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:45:21,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions.
[2023-11-19 07:45:21,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4952919020715631
[2023-11-19 07:45:21,051 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 526 transitions.
[2023-11-19 07:45:21,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 526 transitions.
[2023-11-19 07:45:21,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:21,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 526 transitions.
[2023-11-19 07:45:21,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:21,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:21,073 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:21,075 INFO L175 Difference]: Start difference. First operand has 36 places, 30 transitions, 75 flow. Second operand 3 states and 526 transitions.
[2023-11-19 07:45:21,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 32 transitions, 143 flow
[2023-11-19 07:45:21,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 32 transitions, 134 flow, removed 0 selfloop flow, removed 5 redundant places.
[2023-11-19 07:45:21,083 INFO L231 Difference]: Finished difference. Result has 34 places, 32 transitions, 87 flow
[2023-11-19 07:45:21,085 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=34, PETRI_TRANSITIONS=32}
[2023-11-19 07:45:21,089 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -2 predicate places.
[2023-11-19 07:45:21,089 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 32 transitions, 87 flow
[2023-11-19 07:45:21,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:21,090 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:21,090 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2023-11-19 07:45:21,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:45:21,091 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] ===
[2023-11-19 07:45:21,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:21,092 INFO L85 PathProgramCache]: Analyzing trace with hash 674728, now seen corresponding path program 1 times
[2023-11-19 07:45:21,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:21,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646635061]
[2023-11-19 07:45:21,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:21,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:21,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:21,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:21,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646635061]
[2023-11-19 07:45:21,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646635061] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:45:21,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525932811]
[2023-11-19 07:45:21,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:21,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:21,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:45:21,250 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:45:21,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-19 07:45:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:21,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 07:45:21,359 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:45:21,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:21,455 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:45:21,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:21,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525932811] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:45:21,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-19 07:45:21,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5
[2023-11-19 07:45:21,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783216379]
[2023-11-19 07:45:21,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:45:21,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-19 07:45:21,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:21,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-19 07:45:21,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2023-11-19 07:45:21,521 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 354
[2023-11-19 07:45:21,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 32 transitions, 87 flow. Second operand has 7 states, 7 states have (on average 165.14285714285714) internal successors, (1156), 7 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:21,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:21,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 354
[2023-11-19 07:45:21,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:21,758 INFO L124 PetriNetUnfolderBase]: 854/1232 cut-off events.
[2023-11-19 07:45:21,759 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES.
[2023-11-19 07:45:21,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2542 conditions, 1232 events. 854/1232 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4386 event pairs, 652 based on Foata normal form. 0/640 useless extension candidates. Maximal degree in co-relation 2488. Up to 1225 conditions per place.
[2023-11-19 07:45:21,774 INFO L140 encePairwiseOnDemand]: 349/354 looper letters, 28 selfloop transitions, 13 changer transitions 0/41 dead transitions.
[2023-11-19 07:45:21,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 41 transitions, 205 flow
[2023-11-19 07:45:21,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-11-19 07:45:21,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2023-11-19 07:45:21,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1192 transitions.
[2023-11-19 07:45:21,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48103309120258275
[2023-11-19 07:45:21,781 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1192 transitions.
[2023-11-19 07:45:21,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1192 transitions.
[2023-11-19 07:45:21,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:21,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1192 transitions.
[2023-11-19 07:45:21,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 170.28571428571428) internal successors, (1192), 7 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:21,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 354.0) internal successors, (2832), 8 states have internal predecessors, (2832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:21,802 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 354.0) internal successors, (2832), 8 states have internal predecessors, (2832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:21,802 INFO L175 Difference]: Start difference. First operand has 34 places, 32 transitions, 87 flow. Second operand 7 states and 1192 transitions.
[2023-11-19 07:45:21,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 41 transitions, 205 flow
[2023-11-19 07:45:21,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 41 transitions, 200 flow, removed 1 selfloop flow, removed 1 redundant places.
[2023-11-19 07:45:21,805 INFO L231 Difference]: Finished difference. Result has 42 places, 41 transitions, 166 flow
[2023-11-19 07:45:21,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=166, PETRI_PLACES=42, PETRI_TRANSITIONS=41}
[2023-11-19 07:45:21,808 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 6 predicate places.
[2023-11-19 07:45:21,808 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 41 transitions, 166 flow
[2023-11-19 07:45:21,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 165.14285714285714) internal successors, (1156), 7 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:21,810 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:21,810 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1]
[2023-11-19 07:45:21,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-19 07:45:22,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:22,027 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] ===
[2023-11-19 07:45:22,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:22,028 INFO L85 PathProgramCache]: Analyzing trace with hash 20917231, now seen corresponding path program 1 times
[2023-11-19 07:45:22,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:22,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660797951]
[2023-11-19 07:45:22,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:22,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:22,093 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-19 07:45:22,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:22,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660797951]
[2023-11-19 07:45:22,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660797951] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:22,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:45:22,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:45:22,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899908669]
[2023-11-19 07:45:22,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:22,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:45:22,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:22,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:45:22,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:45:22,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 354
[2023-11-19 07:45:22,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 41 transitions, 166 flow. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:22,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:22,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 354
[2023-11-19 07:45:22,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:22,339 INFO L124 PetriNetUnfolderBase]: 851/1228 cut-off events.
[2023-11-19 07:45:22,340 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES.
[2023-11-19 07:45:22,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2550 conditions, 1228 events. 851/1228 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4388 event pairs, 652 based on Foata normal form. 0/644 useless extension candidates. Maximal degree in co-relation 2514. Up to 1222 conditions per place.
[2023-11-19 07:45:22,352 INFO L140 encePairwiseOnDemand]: 351/354 looper letters, 31 selfloop transitions, 6 changer transitions 0/37 dead transitions.
[2023-11-19 07:45:22,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 37 transitions, 213 flow
[2023-11-19 07:45:22,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:45:22,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:45:22,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 522 transitions.
[2023-11-19 07:45:22,355 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4915254237288136
[2023-11-19 07:45:22,355 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 522 transitions.
[2023-11-19 07:45:22,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 522 transitions.
[2023-11-19 07:45:22,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:22,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 522 transitions.
[2023-11-19 07:45:22,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:22,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:22,361 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:22,362 INFO L175 Difference]: Start difference. First operand has 42 places, 41 transitions, 166 flow. Second operand 3 states and 522 transitions.
[2023-11-19 07:45:22,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 37 transitions, 213 flow
[2023-11-19 07:45:22,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 37 transitions, 192 flow, removed 9 selfloop flow, removed 1 redundant places.
[2023-11-19 07:45:22,366 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 130 flow
[2023-11-19 07:45:22,367 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=41, PETRI_TRANSITIONS=37}
[2023-11-19 07:45:22,368 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 5 predicate places.
[2023-11-19 07:45:22,369 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 130 flow
[2023-11-19 07:45:22,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:22,370 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:22,370 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2023-11-19 07:45:22,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-19 07:45:22,371 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] ===
[2023-11-19 07:45:22,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:22,371 INFO L85 PathProgramCache]: Analyzing trace with hash 648666793, now seen corresponding path program 1 times
[2023-11-19 07:45:22,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:22,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087797279]
[2023-11-19 07:45:22,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:22,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:22,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:22,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:22,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087797279]
[2023-11-19 07:45:22,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087797279] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:22,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:45:22,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:45:22,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894333502]
[2023-11-19 07:45:22,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:22,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:45:22,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:22,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:45:22,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:45:22,500 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 354
[2023-11-19 07:45:22,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:22,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:22,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 354
[2023-11-19 07:45:22,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:22,763 INFO L124 PetriNetUnfolderBase]: 1060/1499 cut-off events.
[2023-11-19 07:45:22,763 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES.
[2023-11-19 07:45:22,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3100 conditions, 1499 events. 1060/1499 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 5556 event pairs, 652 based on Foata normal form. 0/789 useless extension candidates. Maximal degree in co-relation 3066. Up to 1291 conditions per place.
[2023-11-19 07:45:22,777 INFO L140 encePairwiseOnDemand]: 349/354 looper letters, 51 selfloop transitions, 3 changer transitions 0/54 dead transitions.
[2023-11-19 07:45:22,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 54 transitions, 275 flow
[2023-11-19 07:45:22,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:45:22,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:45:22,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 546 transitions.
[2023-11-19 07:45:22,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5141242937853108
[2023-11-19 07:45:22,781 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 546 transitions.
[2023-11-19 07:45:22,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 546 transitions.
[2023-11-19 07:45:22,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:22,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 546 transitions.
[2023-11-19 07:45:22,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:22,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:22,788 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:22,789 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 130 flow. Second operand 3 states and 546 transitions.
[2023-11-19 07:45:22,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 54 transitions, 275 flow
[2023-11-19 07:45:22,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 54 transitions, 263 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-19 07:45:22,792 INFO L231 Difference]: Finished difference. Result has 42 places, 39 transitions, 139 flow
[2023-11-19 07:45:22,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=139, PETRI_PLACES=42, PETRI_TRANSITIONS=39}
[2023-11-19 07:45:22,793 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 6 predicate places.
[2023-11-19 07:45:22,793 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 39 transitions, 139 flow
[2023-11-19 07:45:22,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:22,794 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:22,795 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-11-19 07:45:22,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-19 07:45:22,795 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] ===
[2023-11-19 07:45:22,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:22,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1366165300, now seen corresponding path program 1 times
[2023-11-19 07:45:22,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:22,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384593815]
[2023-11-19 07:45:22,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:22,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:22,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:22,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:22,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384593815]
[2023-11-19 07:45:22,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384593815] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:45:22,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658938822]
[2023-11-19 07:45:22,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:22,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:22,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:45:22,857 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:45:22,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-19 07:45:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:22,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-19 07:45:22,956 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:45:23,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:23,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:45:23,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658938822] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:23,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-19 07:45:23,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7
[2023-11-19 07:45:23,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119279947]
[2023-11-19 07:45:23,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:23,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-19 07:45:23,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:23,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-19 07:45:23,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2023-11-19 07:45:23,081 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 354
[2023-11-19 07:45:23,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 39 transitions, 139 flow. Second operand has 5 states, 5 states have (on average 158.2) internal successors, (791), 5 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:23,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:23,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 354
[2023-11-19 07:45:23,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:23,476 INFO L124 PetriNetUnfolderBase]: 1462/2106 cut-off events.
[2023-11-19 07:45:23,477 INFO L125 PetriNetUnfolderBase]: For 499/499 co-relation queries the response was YES.
[2023-11-19 07:45:23,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5057 conditions, 2106 events. 1462/2106 cut-off events. For 499/499 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 8496 event pairs, 998 based on Foata normal form. 0/1197 useless extension candidates. Maximal degree in co-relation 5024. Up to 1498 conditions per place.
[2023-11-19 07:45:23,500 INFO L140 encePairwiseOnDemand]: 347/354 looper letters, 69 selfloop transitions, 5 changer transitions 0/74 dead transitions.
[2023-11-19 07:45:23,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 74 transitions, 372 flow
[2023-11-19 07:45:23,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-11-19 07:45:23,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-11-19 07:45:23,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 854 transitions.
[2023-11-19 07:45:23,505 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4824858757062147
[2023-11-19 07:45:23,505 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 854 transitions.
[2023-11-19 07:45:23,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 854 transitions.
[2023-11-19 07:45:23,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:23,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 854 transitions.
[2023-11-19 07:45:23,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 170.8) internal successors, (854), 5 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:23,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 354.0) internal successors, (2124), 6 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:23,516 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 354.0) internal successors, (2124), 6 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:23,516 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 139 flow. Second operand 5 states and 854 transitions.
[2023-11-19 07:45:23,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 74 transitions, 372 flow
[2023-11-19 07:45:23,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 74 transitions, 365 flow, removed 1 selfloop flow, removed 1 redundant places.
[2023-11-19 07:45:23,523 INFO L231 Difference]: Finished difference. Result has 47 places, 41 transitions, 167 flow
[2023-11-19 07:45:23,523 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=167, PETRI_PLACES=47, PETRI_TRANSITIONS=41}
[2023-11-19 07:45:23,526 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 11 predicate places.
[2023-11-19 07:45:23,527 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 41 transitions, 167 flow
[2023-11-19 07:45:23,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 158.2) internal successors, (791), 5 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:23,527 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:23,528 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1]
[2023-11-19 07:45:23,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2023-11-19 07:45:23,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:23,747 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] ===
[2023-11-19 07:45:23,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:23,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1373355280, now seen corresponding path program 2 times
[2023-11-19 07:45:23,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:23,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683069509]
[2023-11-19 07:45:23,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:23,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:23,896 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:23,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:23,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683069509]
[2023-11-19 07:45:23,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683069509] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:45:23,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394981988]
[2023-11-19 07:45:23,897 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-11-19 07:45:23,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:23,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:45:23,899 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:45:23,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-19 07:45:23,985 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2023-11-19 07:45:23,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-11-19 07:45:23,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-19 07:45:23,987 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:45:24,004 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2023-11-19 07:45:24,004 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:45:24,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394981988] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:24,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-19 07:45:24,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6
[2023-11-19 07:45:24,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000035874]
[2023-11-19 07:45:24,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:24,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:45:24,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:24,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:45:24,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2023-11-19 07:45:24,022 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 354
[2023-11-19 07:45:24,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 41 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:24,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:24,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 354
[2023-11-19 07:45:24,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:24,308 INFO L124 PetriNetUnfolderBase]: 1462/2105 cut-off events.
[2023-11-19 07:45:24,308 INFO L125 PetriNetUnfolderBase]: For 1179/1179 co-relation queries the response was YES.
[2023-11-19 07:45:24,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5356 conditions, 2105 events. 1462/2105 cut-off events. For 1179/1179 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 8349 event pairs, 1100 based on Foata normal form. 1/1331 useless extension candidates. Maximal degree in co-relation 5327. Up to 2100 conditions per place.
[2023-11-19 07:45:24,331 INFO L140 encePairwiseOnDemand]: 351/354 looper letters, 34 selfloop transitions, 6 changer transitions 0/40 dead transitions.
[2023-11-19 07:45:24,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 40 transitions, 237 flow
[2023-11-19 07:45:24,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:45:24,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:45:24,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 527 transitions.
[2023-11-19 07:45:24,334 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4962335216572505
[2023-11-19 07:45:24,335 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 527 transitions.
[2023-11-19 07:45:24,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 527 transitions.
[2023-11-19 07:45:24,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:24,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 527 transitions.
[2023-11-19 07:45:24,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:24,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:24,341 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:24,341 INFO L175 Difference]: Start difference. First operand has 47 places, 41 transitions, 167 flow. Second operand 3 states and 527 transitions.
[2023-11-19 07:45:24,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 40 transitions, 237 flow
[2023-11-19 07:45:24,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 40 transitions, 216 flow, removed 2 selfloop flow, removed 6 redundant places.
[2023-11-19 07:45:24,345 INFO L231 Difference]: Finished difference. Result has 42 places, 40 transitions, 148 flow
[2023-11-19 07:45:24,346 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=42, PETRI_TRANSITIONS=40}
[2023-11-19 07:45:24,347 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 6 predicate places.
[2023-11-19 07:45:24,347 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 40 transitions, 148 flow
[2023-11-19 07:45:24,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:24,348 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:24,348 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:45:24,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-11-19 07:45:24,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2023-11-19 07:45:24,564 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] ===
[2023-11-19 07:45:24,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:24,564 INFO L85 PathProgramCache]: Analyzing trace with hash 600011424, now seen corresponding path program 1 times
[2023-11-19 07:45:24,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:24,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234745355]
[2023-11-19 07:45:24,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:24,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:24,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:24,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:24,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234745355]
[2023-11-19 07:45:24,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234745355] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:24,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:45:24,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:45:24,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747270721]
[2023-11-19 07:45:24,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:24,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:45:24,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:24,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:45:24,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:45:24,637 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 354
[2023-11-19 07:45:24,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 40 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:24,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:24,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 354
[2023-11-19 07:45:24,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:24,972 INFO L124 PetriNetUnfolderBase]: 1866/2629 cut-off events.
[2023-11-19 07:45:24,972 INFO L125 PetriNetUnfolderBase]: For 1493/1493 co-relation queries the response was YES.
[2023-11-19 07:45:24,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6608 conditions, 2629 events. 1866/2629 cut-off events. For 1493/1493 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 10687 event pairs, 1100 based on Foata normal form. 0/1655 useless extension candidates. Maximal degree in co-relation 4631. Up to 2226 conditions per place.
[2023-11-19 07:45:24,996 INFO L140 encePairwiseOnDemand]: 349/354 looper letters, 58 selfloop transitions, 3 changer transitions 0/61 dead transitions.
[2023-11-19 07:45:24,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 61 transitions, 349 flow
[2023-11-19 07:45:24,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:45:24,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:45:24,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 545 transitions.
[2023-11-19 07:45:24,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5131826741996234
[2023-11-19 07:45:25,000 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 545 transitions.
[2023-11-19 07:45:25,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 545 transitions.
[2023-11-19 07:45:25,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:25,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 545 transitions.
[2023-11-19 07:45:25,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:25,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:25,031 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:25,031 INFO L175 Difference]: Start difference. First operand has 42 places, 40 transitions, 148 flow. Second operand 3 states and 545 transitions.
[2023-11-19 07:45:25,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 61 transitions, 349 flow
[2023-11-19 07:45:25,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 61 transitions, 337 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-19 07:45:25,035 INFO L231 Difference]: Finished difference. Result has 43 places, 42 transitions, 157 flow
[2023-11-19 07:45:25,035 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=157, PETRI_PLACES=43, PETRI_TRANSITIONS=42}
[2023-11-19 07:45:25,036 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 7 predicate places.
[2023-11-19 07:45:25,036 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 42 transitions, 157 flow
[2023-11-19 07:45:25,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:25,037 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:25,037 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:45:25,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-11-19 07:45:25,038 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] ===
[2023-11-19 07:45:25,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:25,038 INFO L85 PathProgramCache]: Analyzing trace with hash 382849924, now seen corresponding path program 1 times
[2023-11-19 07:45:25,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:25,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701010714]
[2023-11-19 07:45:25,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:25,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:25,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-19 07:45:25,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:25,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701010714]
[2023-11-19 07:45:25,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701010714] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:45:25,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569590760]
[2023-11-19 07:45:25,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:25,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:25,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:45:25,106 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:45:25,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-11-19 07:45:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:25,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-11-19 07:45:25,206 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:45:25,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:25,281 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:45:25,367 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:25,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569590760] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:45:25,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-19 07:45:25,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 12
[2023-11-19 07:45:25,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915552233]
[2023-11-19 07:45:25,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:45:25,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-11-19 07:45:25,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:25,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-11-19 07:45:25,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156
[2023-11-19 07:45:25,593 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 354
[2023-11-19 07:45:25,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 157 flow. Second operand has 13 states, 13 states have (on average 155.53846153846155) internal successors, (2022), 13 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:25,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:25,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 354
[2023-11-19 07:45:25,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:26,350 INFO L124 PetriNetUnfolderBase]: 2960/4128 cut-off events.
[2023-11-19 07:45:26,350 INFO L125 PetriNetUnfolderBase]: For 2050/2050 co-relation queries the response was YES.
[2023-11-19 07:45:26,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11941 conditions, 4128 events. 2960/4128 cut-off events. For 2050/2050 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 17777 event pairs, 1194 based on Foata normal form. 62/2663 useless extension candidates. Maximal degree in co-relation 6688. Up to 1346 conditions per place.
[2023-11-19 07:45:26,400 INFO L140 encePairwiseOnDemand]: 345/354 looper letters, 119 selfloop transitions, 17 changer transitions 0/136 dead transitions.
[2023-11-19 07:45:26,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 136 transitions, 746 flow
[2023-11-19 07:45:26,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2023-11-19 07:45:26,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2023-11-19 07:45:26,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1511 transitions.
[2023-11-19 07:45:26,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47426239799121156
[2023-11-19 07:45:26,407 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1511 transitions.
[2023-11-19 07:45:26,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1511 transitions.
[2023-11-19 07:45:26,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:26,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1511 transitions.
[2023-11-19 07:45:26,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 167.88888888888889) internal successors, (1511), 9 states have internal predecessors, (1511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:26,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 354.0) internal successors, (3540), 10 states have internal predecessors, (3540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:26,422 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 354.0) internal successors, (3540), 10 states have internal predecessors, (3540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:26,422 INFO L175 Difference]: Start difference. First operand has 43 places, 42 transitions, 157 flow. Second operand 9 states and 1511 transitions.
[2023-11-19 07:45:26,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 136 transitions, 746 flow
[2023-11-19 07:45:26,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 136 transitions, 716 flow, removed 6 selfloop flow, removed 1 redundant places.
[2023-11-19 07:45:26,432 INFO L231 Difference]: Finished difference. Result has 55 places, 49 transitions, 263 flow
[2023-11-19 07:45:26,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=263, PETRI_PLACES=55, PETRI_TRANSITIONS=49}
[2023-11-19 07:45:26,435 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 19 predicate places.
[2023-11-19 07:45:26,435 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 49 transitions, 263 flow
[2023-11-19 07:45:26,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 155.53846153846155) internal successors, (2022), 13 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:26,438 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:26,438 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:45:26,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-11-19 07:45:26,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7
[2023-11-19 07:45:26,655 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] ===
[2023-11-19 07:45:26,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:26,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1420486322, now seen corresponding path program 1 times
[2023-11-19 07:45:26,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:26,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429998085]
[2023-11-19 07:45:26,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:26,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:26,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:26,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:26,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429998085]
[2023-11-19 07:45:26,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429998085] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:45:26,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498457551]
[2023-11-19 07:45:26,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:26,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:26,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:45:26,736 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:45:26,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-11-19 07:45:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:26,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-11-19 07:45:26,840 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:45:26,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:26,891 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:45:26,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498457551] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:26,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-19 07:45:26,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7
[2023-11-19 07:45:26,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34192600]
[2023-11-19 07:45:26,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:26,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-19 07:45:26,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:26,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-19 07:45:26,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2023-11-19 07:45:26,972 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 354
[2023-11-19 07:45:26,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 49 transitions, 263 flow. Second operand has 5 states, 5 states have (on average 156.6) internal successors, (783), 5 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:26,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:26,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 354
[2023-11-19 07:45:26,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:27,490 INFO L124 PetriNetUnfolderBase]: 2650/3704 cut-off events.
[2023-11-19 07:45:27,491 INFO L125 PetriNetUnfolderBase]: For 8073/8073 co-relation queries the response was YES.
[2023-11-19 07:45:27,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12377 conditions, 3704 events. 2650/3704 cut-off events. For 8073/8073 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 15059 event pairs, 1753 based on Foata normal form. 38/2857 useless extension candidates. Maximal degree in co-relation 7946. Up to 3366 conditions per place.
[2023-11-19 07:45:27,517 INFO L140 encePairwiseOnDemand]: 348/354 looper letters, 69 selfloop transitions, 5 changer transitions 2/76 dead transitions.
[2023-11-19 07:45:27,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 76 transitions, 502 flow
[2023-11-19 07:45:27,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-11-19 07:45:27,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-11-19 07:45:27,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 835 transitions.
[2023-11-19 07:45:27,521 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4717514124293785
[2023-11-19 07:45:27,521 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 835 transitions.
[2023-11-19 07:45:27,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 835 transitions.
[2023-11-19 07:45:27,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:27,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 835 transitions.
[2023-11-19 07:45:27,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:27,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 354.0) internal successors, (2124), 6 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:27,530 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 354.0) internal successors, (2124), 6 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:27,530 INFO L175 Difference]: Start difference. First operand has 55 places, 49 transitions, 263 flow. Second operand 5 states and 835 transitions.
[2023-11-19 07:45:27,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 76 transitions, 502 flow
[2023-11-19 07:45:27,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 76 transitions, 484 flow, removed 1 selfloop flow, removed 3 redundant places.
[2023-11-19 07:45:27,541 INFO L231 Difference]: Finished difference. Result has 58 places, 51 transitions, 276 flow
[2023-11-19 07:45:27,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=276, PETRI_PLACES=58, PETRI_TRANSITIONS=51}
[2023-11-19 07:45:27,542 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 22 predicate places.
[2023-11-19 07:45:27,542 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 51 transitions, 276 flow
[2023-11-19 07:45:27,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 156.6) internal successors, (783), 5 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:27,543 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:27,543 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:45:27,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-11-19 07:45:27,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:27,765 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] ===
[2023-11-19 07:45:27,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:27,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1232252979, now seen corresponding path program 1 times
[2023-11-19 07:45:27,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:27,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028245266]
[2023-11-19 07:45:27,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:27,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:27,830 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2023-11-19 07:45:27,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:27,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028245266]
[2023-11-19 07:45:27,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028245266] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:45:27,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361219332]
[2023-11-19 07:45:27,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:27,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:27,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:45:27,832 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:45:27,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-11-19 07:45:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:27,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 07:45:27,931 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:45:27,944 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2023-11-19 07:45:27,944 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:45:27,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361219332] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:27,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-19 07:45:27,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4
[2023-11-19 07:45:27,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226845113]
[2023-11-19 07:45:27,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:27,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:45:27,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:27,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:45:27,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:45:27,962 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 354
[2023-11-19 07:45:27,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 51 transitions, 276 flow. Second operand has 4 states, 4 states have (on average 167.75) internal successors, (671), 4 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:27,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:27,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 354
[2023-11-19 07:45:27,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:28,409 INFO L124 PetriNetUnfolderBase]: 2388/3368 cut-off events.
[2023-11-19 07:45:28,409 INFO L125 PetriNetUnfolderBase]: For 4675/4675 co-relation queries the response was YES.
[2023-11-19 07:45:28,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11444 conditions, 3368 events. 2388/3368 cut-off events. For 4675/4675 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 14580 event pairs, 757 based on Foata normal form. 148/2691 useless extension candidates. Maximal degree in co-relation 10203. Up to 1715 conditions per place.
[2023-11-19 07:45:28,474 INFO L140 encePairwiseOnDemand]: 350/354 looper letters, 74 selfloop transitions, 11 changer transitions 0/85 dead transitions.
[2023-11-19 07:45:28,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 85 transitions, 576 flow
[2023-11-19 07:45:28,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:45:28,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-11-19 07:45:28,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 724 transitions.
[2023-11-19 07:45:28,478 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5112994350282486
[2023-11-19 07:45:28,478 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 724 transitions.
[2023-11-19 07:45:28,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 724 transitions.
[2023-11-19 07:45:28,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:28,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 724 transitions.
[2023-11-19 07:45:28,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:28,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 354.0) internal successors, (1770), 5 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:28,485 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 354.0) internal successors, (1770), 5 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:28,485 INFO L175 Difference]: Start difference. First operand has 58 places, 51 transitions, 276 flow. Second operand 4 states and 724 transitions.
[2023-11-19 07:45:28,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 85 transitions, 576 flow
[2023-11-19 07:45:28,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 85 transitions, 561 flow, removed 3 selfloop flow, removed 3 redundant places.
[2023-11-19 07:45:28,510 INFO L231 Difference]: Finished difference. Result has 57 places, 49 transitions, 267 flow
[2023-11-19 07:45:28,511 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=267, PETRI_PLACES=57, PETRI_TRANSITIONS=49}
[2023-11-19 07:45:28,511 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 21 predicate places.
[2023-11-19 07:45:28,512 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 49 transitions, 267 flow
[2023-11-19 07:45:28,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 167.75) internal successors, (671), 4 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:28,513 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:28,513 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:45:28,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2023-11-19 07:45:28,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2023-11-19 07:45:28,727 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] ===
[2023-11-19 07:45:28,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:28,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1403063446, now seen corresponding path program 1 times
[2023-11-19 07:45:28,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:28,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292669163]
[2023-11-19 07:45:28,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:28,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:28,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-11-19 07:45:28,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:28,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292669163]
[2023-11-19 07:45:28,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292669163] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:45:28,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413688470]
[2023-11-19 07:45:28,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:28,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:28,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:45:28,783 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:45:28,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2023-11-19 07:45:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:28,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-11-19 07:45:28,893 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:45:28,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:28,989 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:45:29,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:29,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413688470] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:45:29,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-19 07:45:29,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 13
[2023-11-19 07:45:29,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908304600]
[2023-11-19 07:45:29,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:45:29,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2023-11-19 07:45:29,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:29,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2023-11-19 07:45:29,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182
[2023-11-19 07:45:29,373 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 354
[2023-11-19 07:45:29,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 49 transitions, 267 flow. Second operand has 14 states, 14 states have (on average 153.92857142857142) internal successors, (2155), 14 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:29,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:29,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 354
[2023-11-19 07:45:29,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:30,296 INFO L124 PetriNetUnfolderBase]: 2946/4176 cut-off events.
[2023-11-19 07:45:30,297 INFO L125 PetriNetUnfolderBase]: For 9282/9282 co-relation queries the response was YES.
[2023-11-19 07:45:30,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14180 conditions, 4176 events. 2946/4176 cut-off events. For 9282/9282 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 18419 event pairs, 1021 based on Foata normal form. 0/3117 useless extension candidates. Maximal degree in co-relation 10512. Up to 1497 conditions per place.
[2023-11-19 07:45:30,329 INFO L140 encePairwiseOnDemand]: 346/354 looper letters, 134 selfloop transitions, 17 changer transitions 3/154 dead transitions.
[2023-11-19 07:45:30,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 154 transitions, 1077 flow
[2023-11-19 07:45:30,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2023-11-19 07:45:30,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2023-11-19 07:45:30,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1649 transitions.
[2023-11-19 07:45:30,335 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46581920903954804
[2023-11-19 07:45:30,335 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1649 transitions.
[2023-11-19 07:45:30,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1649 transitions.
[2023-11-19 07:45:30,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:30,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1649 transitions.
[2023-11-19 07:45:30,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 164.9) internal successors, (1649), 10 states have internal predecessors, (1649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:30,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 354.0) internal successors, (3894), 11 states have internal predecessors, (3894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:30,351 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 354.0) internal successors, (3894), 11 states have internal predecessors, (3894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:30,351 INFO L175 Difference]: Start difference. First operand has 57 places, 49 transitions, 267 flow. Second operand 10 states and 1649 transitions.
[2023-11-19 07:45:30,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 154 transitions, 1077 flow
[2023-11-19 07:45:30,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 154 transitions, 1023 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-19 07:45:30,374 INFO L231 Difference]: Finished difference. Result has 67 places, 56 transitions, 341 flow
[2023-11-19 07:45:30,375 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=341, PETRI_PLACES=67, PETRI_TRANSITIONS=56}
[2023-11-19 07:45:30,375 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 31 predicate places.
[2023-11-19 07:45:30,375 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 56 transitions, 341 flow
[2023-11-19 07:45:30,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 153.92857142857142) internal successors, (2155), 14 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:30,377 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:30,377 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:45:30,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2023-11-19 07:45:30,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:30,600 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] ===
[2023-11-19 07:45:30,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:30,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1087144683, now seen corresponding path program 1 times
[2023-11-19 07:45:30,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:30,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507884087]
[2023-11-19 07:45:30,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:30,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:30,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:45:30,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:30,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507884087]
[2023-11-19 07:45:30,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507884087] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:30,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:45:30,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:45:30,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791566374]
[2023-11-19 07:45:30,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:30,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:45:30,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:30,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:45:30,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:45:30,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 354
[2023-11-19 07:45:30,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 56 transitions, 341 flow. Second operand has 4 states, 4 states have (on average 166.25) internal successors, (665), 4 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:30,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:30,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 354
[2023-11-19 07:45:30,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:31,151 INFO L124 PetriNetUnfolderBase]: 2399/3409 cut-off events.
[2023-11-19 07:45:31,151 INFO L125 PetriNetUnfolderBase]: For 9263/9263 co-relation queries the response was YES.
[2023-11-19 07:45:31,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12998 conditions, 3409 events. 2399/3409 cut-off events. For 9263/9263 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 14425 event pairs, 957 based on Foata normal form. 0/3020 useless extension candidates. Maximal degree in co-relation 9950. Up to 1896 conditions per place.
[2023-11-19 07:45:31,176 INFO L140 encePairwiseOnDemand]: 350/354 looper letters, 59 selfloop transitions, 5 changer transitions 26/90 dead transitions.
[2023-11-19 07:45:31,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 90 transitions, 768 flow
[2023-11-19 07:45:31,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:45:31,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-11-19 07:45:31,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 697 transitions.
[2023-11-19 07:45:31,180 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4922316384180791
[2023-11-19 07:45:31,180 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 697 transitions.
[2023-11-19 07:45:31,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 697 transitions.
[2023-11-19 07:45:31,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:31,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 697 transitions.
[2023-11-19 07:45:31,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 174.25) internal successors, (697), 4 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:31,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 354.0) internal successors, (1770), 5 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:31,188 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 354.0) internal successors, (1770), 5 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:31,188 INFO L175 Difference]: Start difference. First operand has 67 places, 56 transitions, 341 flow. Second operand 4 states and 697 transitions.
[2023-11-19 07:45:31,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 90 transitions, 768 flow
[2023-11-19 07:45:31,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 90 transitions, 730 flow, removed 8 selfloop flow, removed 3 redundant places.
[2023-11-19 07:45:31,212 INFO L231 Difference]: Finished difference. Result has 66 places, 41 transitions, 211 flow
[2023-11-19 07:45:31,213 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=211, PETRI_PLACES=66, PETRI_TRANSITIONS=41}
[2023-11-19 07:45:31,213 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 30 predicate places.
[2023-11-19 07:45:31,214 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 41 transitions, 211 flow
[2023-11-19 07:45:31,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 166.25) internal successors, (665), 4 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:31,231 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:31,231 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1]
[2023-11-19 07:45:31,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-11-19 07:45:31,232 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] ===
[2023-11-19 07:45:31,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:31,232 INFO L85 PathProgramCache]: Analyzing trace with hash 454863881, now seen corresponding path program 2 times
[2023-11-19 07:45:31,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:31,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921029089]
[2023-11-19 07:45:31,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:31,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:31,317 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2023-11-19 07:45:31,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:31,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921029089]
[2023-11-19 07:45:31,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921029089] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:45:31,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175146948]
[2023-11-19 07:45:31,318 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-11-19 07:45:31,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:31,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:45:31,323 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:45:31,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2023-11-19 07:45:31,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2023-11-19 07:45:31,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-11-19 07:45:31,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 07:45:31,417 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:45:31,433 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2023-11-19 07:45:31,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:45:31,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175146948] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:31,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-19 07:45:31,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5
[2023-11-19 07:45:31,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435082870]
[2023-11-19 07:45:31,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:31,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:45:31,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:31,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:45:31,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:45:31,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 354
[2023-11-19 07:45:31,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 41 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:31,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:31,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 354
[2023-11-19 07:45:31,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:31,696 INFO L124 PetriNetUnfolderBase]: 1330/1852 cut-off events.
[2023-11-19 07:45:31,696 INFO L125 PetriNetUnfolderBase]: For 5029/5029 co-relation queries the response was YES.
[2023-11-19 07:45:31,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6664 conditions, 1852 events. 1330/1852 cut-off events. For 5029/5029 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 6418 event pairs, 879 based on Foata normal form. 100/1892 useless extension candidates. Maximal degree in co-relation 6646. Up to 1852 conditions per place.
[2023-11-19 07:45:31,708 INFO L140 encePairwiseOnDemand]: 351/354 looper letters, 33 selfloop transitions, 1 changer transitions 5/39 dead transitions.
[2023-11-19 07:45:31,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 39 transitions, 269 flow
[2023-11-19 07:45:31,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:45:31,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:45:31,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 527 transitions.
[2023-11-19 07:45:31,711 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4962335216572505
[2023-11-19 07:45:31,712 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 527 transitions.
[2023-11-19 07:45:31,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 527 transitions.
[2023-11-19 07:45:31,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:31,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 527 transitions.
[2023-11-19 07:45:31,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:31,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:31,717 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:31,717 INFO L175 Difference]: Start difference. First operand has 66 places, 41 transitions, 211 flow. Second operand 3 states and 527 transitions.
[2023-11-19 07:45:31,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 39 transitions, 269 flow
[2023-11-19 07:45:31,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 39 transitions, 243 flow, removed 7 selfloop flow, removed 8 redundant places.
[2023-11-19 07:45:31,726 INFO L231 Difference]: Finished difference. Result has 49 places, 34 transitions, 144 flow
[2023-11-19 07:45:31,727 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=49, PETRI_TRANSITIONS=34}
[2023-11-19 07:45:31,728 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 13 predicate places.
[2023-11-19 07:45:31,728 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 34 transitions, 144 flow
[2023-11-19 07:45:31,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:31,728 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:31,729 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:45:31,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2023-11-19 07:45:31,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:31,943 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] ===
[2023-11-19 07:45:31,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:31,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1261206942, now seen corresponding path program 1 times
[2023-11-19 07:45:31,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:31,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144553989]
[2023-11-19 07:45:31,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:31,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:31,997 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2023-11-19 07:45:31,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:31,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144553989]
[2023-11-19 07:45:31,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144553989] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:31,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:45:31,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:45:31,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801130524]
[2023-11-19 07:45:31,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:31,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:45:31,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:32,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:45:32,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:45:32,011 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 354
[2023-11-19 07:45:32,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 34 transitions, 144 flow. Second operand has 3 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:32,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:32,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 354
[2023-11-19 07:45:32,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:32,167 INFO L124 PetriNetUnfolderBase]: 748/1066 cut-off events.
[2023-11-19 07:45:32,167 INFO L125 PetriNetUnfolderBase]: For 1009/1009 co-relation queries the response was YES.
[2023-11-19 07:45:32,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3325 conditions, 1066 events. 748/1066 cut-off events. For 1009/1009 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3683 event pairs, 65 based on Foata normal form. 120/1045 useless extension candidates. Maximal degree in co-relation 3312. Up to 884 conditions per place.
[2023-11-19 07:45:32,174 INFO L140 encePairwiseOnDemand]: 352/354 looper letters, 46 selfloop transitions, 1 changer transitions 0/47 dead transitions.
[2023-11-19 07:45:32,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 47 transitions, 280 flow
[2023-11-19 07:45:32,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:45:32,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:45:32,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 530 transitions.
[2023-11-19 07:45:32,179 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4990583804143126
[2023-11-19 07:45:32,180 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 530 transitions.
[2023-11-19 07:45:32,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 530 transitions.
[2023-11-19 07:45:32,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:32,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 530 transitions.
[2023-11-19 07:45:32,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:32,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:32,185 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:32,185 INFO L175 Difference]: Start difference. First operand has 49 places, 34 transitions, 144 flow. Second operand 3 states and 530 transitions.
[2023-11-19 07:45:32,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 47 transitions, 280 flow
[2023-11-19 07:45:32,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 47 transitions, 267 flow, removed 2 selfloop flow, removed 3 redundant places.
[2023-11-19 07:45:32,189 INFO L231 Difference]: Finished difference. Result has 43 places, 32 transitions, 119 flow
[2023-11-19 07:45:32,190 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=43, PETRI_TRANSITIONS=32}
[2023-11-19 07:45:32,190 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 7 predicate places.
[2023-11-19 07:45:32,190 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 32 transitions, 119 flow
[2023-11-19 07:45:32,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:32,191 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:45:32,191 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:45:32,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-11-19 07:45:32,191 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] ===
[2023-11-19 07:45:32,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:45:32,192 INFO L85 PathProgramCache]: Analyzing trace with hash 442711520, now seen corresponding path program 2 times
[2023-11-19 07:45:32,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:45:32,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456251807]
[2023-11-19 07:45:32,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:45:32,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:45:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:45:32,264 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2023-11-19 07:45:32,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:45:32,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456251807]
[2023-11-19 07:45:32,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456251807] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:45:32,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842065564]
[2023-11-19 07:45:32,265 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-11-19 07:45:32,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:32,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:45:32,266 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:45:32,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2023-11-19 07:45:32,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2023-11-19 07:45:32,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-11-19 07:45:32,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 07:45:32,373 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:45:32,393 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2023-11-19 07:45:32,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 07:45:32,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842065564] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:45:32,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-19 07:45:32,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5
[2023-11-19 07:45:32,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328217987]
[2023-11-19 07:45:32,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:45:32,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:45:32,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:45:32,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:45:32,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:45:32,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 354
[2023-11-19 07:45:32,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 32 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:32,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:45:32,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 354
[2023-11-19 07:45:32,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:45:32,554 INFO L124 PetriNetUnfolderBase]: 602/860 cut-off events.
[2023-11-19 07:45:32,554 INFO L125 PetriNetUnfolderBase]: For 901/901 co-relation queries the response was YES.
[2023-11-19 07:45:32,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2502 conditions, 860 events. 602/860 cut-off events. For 901/901 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2637 event pairs, 407 based on Foata normal form. 0/795 useless extension candidates. Maximal degree in co-relation 2490. Up to 860 conditions per place.
[2023-11-19 07:45:32,557 INFO L140 encePairwiseOnDemand]: 352/354 looper letters, 0 selfloop transitions, 0 changer transitions 31/31 dead transitions.
[2023-11-19 07:45:32,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 31 transitions, 175 flow
[2023-11-19 07:45:32,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:45:32,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:45:32,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 521 transitions.
[2023-11-19 07:45:32,560 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4905838041431262
[2023-11-19 07:45:32,560 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 521 transitions.
[2023-11-19 07:45:32,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 521 transitions.
[2023-11-19 07:45:32,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:45:32,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 521 transitions.
[2023-11-19 07:45:32,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:32,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:32,566 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 354.0) internal successors, (1416), 4 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:32,566 INFO L175 Difference]: Start difference. First operand has 43 places, 32 transitions, 119 flow. Second operand 3 states and 521 transitions.
[2023-11-19 07:45:32,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 31 transitions, 175 flow
[2023-11-19 07:45:32,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 31 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-19 07:45:32,569 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow
[2023-11-19 07:45:32,569 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0}
[2023-11-19 07:45:32,570 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 7 predicate places.
[2023-11-19 07:45:32,571 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow
[2023-11-19 07:45:32,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:45:32,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 17 remaining)
[2023-11-19 07:45:32,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining)
[2023-11-19 07:45:32,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining)
[2023-11-19 07:45:32,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining)
[2023-11-19 07:45:32,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining)
[2023-11-19 07:45:32,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining)
[2023-11-19 07:45:32,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining)
[2023-11-19 07:45:32,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining)
[2023-11-19 07:45:32,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 17 remaining)
[2023-11-19 07:45:32,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 17 remaining)
[2023-11-19 07:45:32,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 17 remaining)
[2023-11-19 07:45:32,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining)
[2023-11-19 07:45:32,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining)
[2023-11-19 07:45:32,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining)
[2023-11-19 07:45:32,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining)
[2023-11-19 07:45:32,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining)
[2023-11-19 07:45:32,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining)
[2023-11-19 07:45:32,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2023-11-19 07:45:32,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:45:32,797 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:45:32,802 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2023-11-19 07:45:32,802 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2023-11-19 07:45:32,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:45:32 BasicIcfg
[2023-11-19 07:45:32,805 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-11-19 07:45:32,806 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 07:45:32,806 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 07:45:32,806 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 07:45:32,807 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:13" (3/4) ...
[2023-11-19 07:45:32,808 INFO L137 WitnessPrinter]: Generating witness for correct program
[2023-11-19 07:45:32,812 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1
[2023-11-19 07:45:32,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2
[2023-11-19 07:45:32,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3
[2023-11-19 07:45:32,820 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges
[2023-11-19 07:45:32,821 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2023-11-19 07:45:32,821 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2023-11-19 07:45:32,822 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2023-11-19 07:45:32,909 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml
[2023-11-19 07:45:32,910 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/witness.yml
[2023-11-19 07:45:32,910 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 07:45:32,911 INFO L158 Benchmark]: Toolchain (without parser) took 20715.03ms. Allocated memory was 121.6MB in the beginning and 346.0MB in the end (delta: 224.4MB). Free memory was 89.6MB in the beginning and 274.8MB in the end (delta: -185.3MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB.
[2023-11-19 07:45:32,911 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory was 95.7MB in the beginning and 95.7MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:45:32,911 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.58ms. Allocated memory is still 121.6MB. Free memory was 89.6MB in the beginning and 77.9MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-19 07:45:32,912 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.93ms. Allocated memory is still 121.6MB. Free memory was 77.9MB in the beginning and 75.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:45:32,912 INFO L158 Benchmark]: Boogie Preprocessor took 66.56ms. Allocated memory is still 121.6MB. Free memory was 75.8MB in the beginning and 74.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:45:32,912 INFO L158 Benchmark]: RCFGBuilder took 639.66ms. Allocated memory is still 121.6MB. Free memory was 74.1MB in the beginning and 56.5MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
[2023-11-19 07:45:32,913 INFO L158 Benchmark]: TraceAbstraction took 19422.40ms. Allocated memory was 121.6MB in the beginning and 346.0MB in the end (delta: 224.4MB). Free memory was 55.7MB in the beginning and 279.8MB in the end (delta: -224.1MB). Peak memory consumption was 179.8MB. Max. memory is 16.1GB.
[2023-11-19 07:45:32,913 INFO L158 Benchmark]: Witness Printer took 103.82ms. Allocated memory is still 346.0MB. Free memory was 279.8MB in the beginning and 274.8MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2023-11-19 07:45:32,915 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory was 95.7MB in the beginning and 95.7MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 406.58ms. Allocated memory is still 121.6MB. Free memory was 89.6MB in the beginning and 77.9MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 68.93ms. Allocated memory is still 121.6MB. Free memory was 77.9MB in the beginning and 75.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 66.56ms. Allocated memory is still 121.6MB. Free memory was 75.8MB in the beginning and 74.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 639.66ms. Allocated memory is still 121.6MB. Free memory was 74.1MB in the beginning and 56.5MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
* TraceAbstraction took 19422.40ms. Allocated memory was 121.6MB in the beginning and 346.0MB in the end (delta: 224.4MB). Free memory was 55.7MB in the beginning and 279.8MB in the end (delta: -224.1MB). Peak memory consumption was 179.8MB. Max. memory is 16.1GB.
* Witness Printer took 103.82ms. Allocated memory is still 346.0MB. Free memory was 279.8MB in the beginning and 274.8MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
Lipton Reduction Statistics: ReductionTime: 6.5s, 156 PlacesBefore, 36 PlacesAfterwards, 157 TransitionsBefore, 30 TransitionsAfterwards, 3240 CoEnabledTransitionPairs, 7 FixpointIterations, 81 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 15 TrivialYvCompositions, 6 ConcurrentYvCompositions, 7 ChoiceCompositions, 170 TotalNumberOfCompositions, 3398 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3191, independent: 3168, independent conditional: 0, independent unconditional: 3168, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1733, independent: 1722, independent conditional: 0, independent unconditional: 1722, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3191, independent: 1446, independent conditional: 0, independent unconditional: 1446, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 1733, unknown conditional: 0, unknown unconditional: 1733] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 66, Positive conditional cache size: 0, Positive unconditional cache size: 66, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
- PositiveResult [Line: 48]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 48]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 56]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 56]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 64]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 64]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 100]: integer overflow can never occur
For all program executions holds that integer overflow can never occur at this location
- PositiveResult [Line: 100]: 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, 227 locations, 17 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: 19.2s, OverallIterations: 15, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1391 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1104 mSDsluCounter, 643 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 561 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2868 IncrementalHoareTripleChecker+Invalid, 2948 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 82 mSDtfsCounter, 2868 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=341occurred in iteration=11, InterpolantAutomatonStates: 68, 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: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 171 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 163 ConstructedInterpolants, 0 QuantifiedInterpolants, 465 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1123 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 27 InterpolantComputations, 12 PerfectInterpolantSequences, 50/78 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
8 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2023-11-19 07:45:32,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5557db8a-528f-426f-8a77-5f62cfeae2fe/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE