./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX --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 a79fe9fcfc95192d454ac05616e4d9a71dbf2bcc8b4fd9d21dcef47910a50542
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 18:54:06,631 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 18:54:06,724 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2024-11-08 18:54:06,733 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 18:54:06,733 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 18:54:06,758 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 18:54:06,759 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 18:54:06,759 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 18:54:06,760 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 18:54:06,761 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 18:54:06,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 18:54:06,762 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 18:54:06,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 18:54:06,764 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 18:54:06,765 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 18:54:06,766 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 18:54:06,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 18:54:06,767 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 18:54:06,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 18:54:06,768 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 18:54:06,768 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 18:54:06,772 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 18:54:06,773 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 18:54:06,773 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 18:54:06,773 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 18:54:06,773 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-08 18:54:06,774 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 18:54:06,774 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 18:54:06,774 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 18:54:06,775 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 18:54:06,775 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 18:54:06,775 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 18:54:06,776 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 18:54:06,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 18:54:06,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:54:06,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 18:54:06,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 18:54:06,779 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 18:54:06,780 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 18:54:06,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 18:54:06,780 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 18:54:06,781 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 18:54:06,781 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 18:54:06,781 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 18:54:06,782 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_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a79fe9fcfc95192d454ac05616e4d9a71dbf2bcc8b4fd9d21dcef47910a50542
[2024-11-08 18:54:07,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 18:54:07,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 18:54:07,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 18:54:07,148 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 18:54:07,149 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 18:54:07,150 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c
Unable to find full path for "g++"
[2024-11-08 18:54:09,118 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 18:54:09,345 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 18:54:09,346 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c
[2024-11-08 18:54:09,356 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/data/9cc4cb413/ff2a040ce27a4139ac2b4718276458be/FLAGd40da7af2
[2024-11-08 18:54:09,370 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/data/9cc4cb413/ff2a040ce27a4139ac2b4718276458be
[2024-11-08 18:54:09,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 18:54:09,374 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 18:54:09,375 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 18:54:09,376 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 18:54:09,384 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 18:54:09,385 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:54:09" (1/1) ...
[2024-11-08 18:54:09,386 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a5298b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:09, skipping insertion in model container
[2024-11-08 18:54:09,386 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:54:09" (1/1) ...
[2024-11-08 18:54:09,416 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 18:54:09,730 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:54:09,742 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 18:54:09,775 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:54:09,791 INFO L204 MainTranslator]: Completed translation
[2024-11-08 18:54:09,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:09 WrapperNode
[2024-11-08 18:54:09,792 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 18:54:09,793 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 18:54:09,793 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 18:54:09,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 18:54:09,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:09" (1/1) ...
[2024-11-08 18:54:09,810 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:09" (1/1) ...
[2024-11-08 18:54:09,846 INFO L138 Inliner]: procedures = 25, calls = 56, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 349
[2024-11-08 18:54:09,847 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 18:54:09,848 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 18:54:09,848 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 18:54:09,848 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 18:54:09,862 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:09" (1/1) ...
[2024-11-08 18:54:09,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:09" (1/1) ...
[2024-11-08 18:54:09,868 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:09" (1/1) ...
[2024-11-08 18:54:09,886 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2].
[2024-11-08 18:54:09,886 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:09" (1/1) ...
[2024-11-08 18:54:09,887 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:09" (1/1) ...
[2024-11-08 18:54:09,897 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:09" (1/1) ...
[2024-11-08 18:54:09,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:09" (1/1) ...
[2024-11-08 18:54:09,912 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:09" (1/1) ...
[2024-11-08 18:54:09,914 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:09" (1/1) ...
[2024-11-08 18:54:09,920 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 18:54:09,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 18:54:09,925 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 18:54:09,925 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 18:54:09,926 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:09" (1/1) ...
[2024-11-08 18:54:09,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:54:09,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:54:09,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 18:54:09,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 18:54:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 18:54:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2024-11-08 18:54:10,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2024-11-08 18:54:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2024-11-08 18:54:10,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2024-11-08 18:54:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2024-11-08 18:54:10,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2024-11-08 18:54:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread4
[2024-11-08 18:54:10,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4
[2024-11-08 18:54:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 18:54:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-08 18:54:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-08 18:54:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-08 18:54:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-11-08 18:54:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-11-08 18:54:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-08 18:54:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 18:54:10,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 18:54:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-08 18:54:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-08 18:54:10,012 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-08 18:54:10,173 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 18:54:10,175 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 18:54:10,985 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-08 18:54:10,986 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 18:54:11,794 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 18:54:11,794 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 18:54:11,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:54:11 BoogieIcfgContainer
[2024-11-08 18:54:11,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 18:54:11,798 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 18:54:11,800 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 18:54:11,804 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 18:54:11,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:54:09" (1/3) ...
[2024-11-08 18:54:11,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a7dfec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:54:11, skipping insertion in model container
[2024-11-08 18:54:11,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:54:09" (2/3) ...
[2024-11-08 18:54:11,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a7dfec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:54:11, skipping insertion in model container
[2024-11-08 18:54:11,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:54:11" (3/3) ...
[2024-11-08 18:54:11,808 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt2.wvr.c
[2024-11-08 18:54:11,831 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 18:54:11,831 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations.
[2024-11-08 18:54:11,831 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-08 18:54:12,046 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2024-11-08 18:54:12,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 98 transitions, 224 flow
[2024-11-08 18:54:12,170 INFO L124 PetriNetUnfolderBase]: 12/94 cut-off events.
[2024-11-08 18:54:12,170 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES.
[2024-11-08 18:54:12,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 94 events. 12/94 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 280 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place.
[2024-11-08 18:54:12,178 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 98 transitions, 224 flow
[2024-11-08 18:54:12,184 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 92 transitions, 205 flow
[2024-11-08 18:54:12,194 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 18:54:12,201 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@2662abd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 18:54:12,202 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations.
[2024-11-08 18:54:12,206 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-08 18:54:12,207 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events.
[2024-11-08 18:54:12,207 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-08 18:54:12,207 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:54:12,208 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2024-11-08 18:54:12,210 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-08 18:54:12,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:54:12,216 INFO L85 PathProgramCache]: Analyzing trace with hash 33567081, now seen corresponding path program 1 times
[2024-11-08 18:54:12,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:54:12,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551551540]
[2024-11-08 18:54:12,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:54:12,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:54:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:54:12,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:54:12,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:54:12,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551551540]
[2024-11-08 18:54:12,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551551540] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:54:12,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:54:12,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:54:12,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109490852]
[2024-11-08 18:54:12,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:54:12,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:54:12,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:54:12,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:54:12,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:54:12,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 98
[2024-11-08 18:54:12,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 92 transitions, 205 flow. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:54:12,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:54:12,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 98
[2024-11-08 18:54:12,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:54:20,385 INFO L124 PetriNetUnfolderBase]: 22684/32508 cut-off events.
[2024-11-08 18:54:20,385 INFO L125 PetriNetUnfolderBase]: For 584/584 co-relation queries the response was YES.
[2024-11-08 18:54:20,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63395 conditions, 32508 events. 22684/32508 cut-off events. For 584/584 co-relation queries the response was YES. Maximal size of possible extension queue 4516. Compared 276791 event pairs, 21798 based on Foata normal form. 2/13352 useless extension candidates. Maximal degree in co-relation 58657. Up to 29415 conditions per place.
[2024-11-08 18:54:20,759 INFO L140 encePairwiseOnDemand]: 79/98 looper letters, 47 selfloop transitions, 7 changer transitions 0/90 dead transitions.
[2024-11-08 18:54:20,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 90 transitions, 309 flow
[2024-11-08 18:54:20,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 18:54:20,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-08 18:54:20,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 226 transitions.
[2024-11-08 18:54:20,778 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.576530612244898
[2024-11-08 18:54:20,781 INFO L175 Difference]: Start difference. First operand has 93 places, 92 transitions, 205 flow. Second operand 4 states and 226 transitions.
[2024-11-08 18:54:20,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 90 transitions, 309 flow
[2024-11-08 18:54:20,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 90 transitions, 296 flow, removed 0 selfloop flow, removed 7 redundant places.
[2024-11-08 18:54:20,945 INFO L231 Difference]: Finished difference. Result has 84 places, 90 transitions, 236 flow
[2024-11-08 18:54:20,947 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=236, PETRI_PLACES=84, PETRI_TRANSITIONS=90}
[2024-11-08 18:54:20,954 INFO L277 CegarLoopForPetriNet]: 93 programPoint places, -9 predicate places.
[2024-11-08 18:54:20,960 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 90 transitions, 236 flow
[2024-11-08 18:54:20,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:54:20,961 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:54:20,961 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1]
[2024-11-08 18:54:20,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 18:54:20,962 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-08 18:54:20,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:54:20,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1136073873, now seen corresponding path program 1 times
[2024-11-08 18:54:20,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:54:20,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64741795]
[2024-11-08 18:54:20,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:54:20,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:54:21,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:54:21,285 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:54:21,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:54:21,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64741795]
[2024-11-08 18:54:21,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64741795] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:54:21,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468426938]
[2024-11-08 18:54:21,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:54:21,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:54:21,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:54:21,292 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:54:21,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 18:54:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:54:21,471 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-08 18:54:21,476 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:54:21,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:54:21,551 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:54:21,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468426938] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:54:21,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 18:54:21,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6
[2024-11-08 18:54:21,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417105891]
[2024-11-08 18:54:21,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:54:21,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:54:21,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:54:21,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:54:21,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-08 18:54:21,621 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 98
[2024-11-08 18:54:21,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 90 transitions, 236 flow. Second operand has 6 states, 6 states have (on average 40.833333333333336) internal successors, (245), 6 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:54:21,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:54:21,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 98
[2024-11-08 18:54:21,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:54:27,292 INFO L124 PetriNetUnfolderBase]: 22684/32506 cut-off events.
[2024-11-08 18:54:27,292 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES.
[2024-11-08 18:54:27,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62773 conditions, 32506 events. 22684/32506 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 4516. Compared 276451 event pairs, 21798 based on Foata normal form. 2/13350 useless extension candidates. Maximal degree in co-relation 62717. Up to 29405 conditions per place.
[2024-11-08 18:54:27,548 INFO L140 encePairwiseOnDemand]: 89/98 looper letters, 40 selfloop transitions, 12 changer transitions 0/88 dead transitions.
[2024-11-08 18:54:27,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 88 transitions, 332 flow
[2024-11-08 18:54:27,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 18:54:27,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-08 18:54:27,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 294 transitions.
[2024-11-08 18:54:27,551 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5
[2024-11-08 18:54:27,551 INFO L175 Difference]: Start difference. First operand has 84 places, 90 transitions, 236 flow. Second operand 6 states and 294 transitions.
[2024-11-08 18:54:27,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 88 transitions, 332 flow
[2024-11-08 18:54:27,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 88 transitions, 332 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-08 18:54:27,555 INFO L231 Difference]: Finished difference. Result has 87 places, 88 transitions, 252 flow
[2024-11-08 18:54:27,556 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=252, PETRI_PLACES=87, PETRI_TRANSITIONS=88}
[2024-11-08 18:54:27,556 INFO L277 CegarLoopForPetriNet]: 93 programPoint places, -6 predicate places.
[2024-11-08 18:54:27,557 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 88 transitions, 252 flow
[2024-11-08 18:54:27,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.833333333333336) internal successors, (245), 6 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:54:27,557 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:54:27,558 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1]
[2024-11-08 18:54:27,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-08 18:54:27,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:54:27,764 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-08 18:54:27,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:54:27,765 INFO L85 PathProgramCache]: Analyzing trace with hash -858550602, now seen corresponding path program 1 times
[2024-11-08 18:54:27,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:54:27,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063977916]
[2024-11-08 18:54:27,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:54:27,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:54:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:54:27,947 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:54:27,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:54:27,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063977916]
[2024-11-08 18:54:27,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063977916] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:54:27,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606825059]
[2024-11-08 18:54:27,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:54:27,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:54:27,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:54:27,953 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:54:27,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 18:54:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:54:28,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-08 18:54:28,094 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:54:28,133 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:54:28,133 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:54:28,187 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:54:28,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606825059] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:54:28,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 18:54:28,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10
[2024-11-08 18:54:28,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778463581]
[2024-11-08 18:54:28,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:54:28,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-08 18:54:28,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:54:28,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 18:54:28,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132
[2024-11-08 18:54:28,268 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 98
[2024-11-08 18:54:28,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 88 transitions, 252 flow. Second operand has 12 states, 12 states have (on average 41.083333333333336) internal successors, (493), 12 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:54:28,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:54:28,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 98
[2024-11-08 18:54:28,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:54:33,522 INFO L124 PetriNetUnfolderBase]: 22696/32548 cut-off events.
[2024-11-08 18:54:33,522 INFO L125 PetriNetUnfolderBase]: For 123/123 co-relation queries the response was YES.
[2024-11-08 18:54:33,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62885 conditions, 32548 events. 22696/32548 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 4516. Compared 276789 event pairs, 21798 based on Foata normal form. 6/13392 useless extension candidates. Maximal degree in co-relation 62719. Up to 29416 conditions per place.
[2024-11-08 18:54:33,835 INFO L140 encePairwiseOnDemand]: 89/98 looper letters, 45 selfloop transitions, 25 changer transitions 0/106 dead transitions.
[2024-11-08 18:54:33,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 106 transitions, 506 flow
[2024-11-08 18:54:33,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-08 18:54:33,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-11-08 18:54:33,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 476 transitions.
[2024-11-08 18:54:33,838 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4857142857142857
[2024-11-08 18:54:33,839 INFO L175 Difference]: Start difference. First operand has 87 places, 88 transitions, 252 flow. Second operand 10 states and 476 transitions.
[2024-11-08 18:54:33,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 106 transitions, 506 flow
[2024-11-08 18:54:33,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 106 transitions, 448 flow, removed 12 selfloop flow, removed 5 redundant places.
[2024-11-08 18:54:33,844 INFO L231 Difference]: Finished difference. Result has 94 places, 106 transitions, 392 flow
[2024-11-08 18:54:33,844 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=392, PETRI_PLACES=94, PETRI_TRANSITIONS=106}
[2024-11-08 18:54:33,846 INFO L277 CegarLoopForPetriNet]: 93 programPoint places, 1 predicate places.
[2024-11-08 18:54:33,847 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 106 transitions, 392 flow
[2024-11-08 18:54:33,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 41.083333333333336) internal successors, (493), 12 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:54:33,848 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:54:33,848 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:54:33,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-08 18:54:34,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951f7509-a698-47d1-9b7b-fe2629ca9600/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:54:34,053 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-08 18:54:34,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:54:34,054 INFO L85 PathProgramCache]: Analyzing trace with hash -2057211353, now seen corresponding path program 1 times
[2024-11-08 18:54:34,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:54:34,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061553599]
[2024-11-08 18:54:34,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:54:34,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:54:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:54:34,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:54:34,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:54:34,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061553599]
[2024-11-08 18:54:34,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061553599] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:54:34,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:54:34,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:54:34,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656659014]
[2024-11-08 18:54:34,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:54:34,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:54:34,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:54:34,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:54:34,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:54:34,366 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 98
[2024-11-08 18:54:34,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 106 transitions, 392 flow. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:54:34,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:54:34,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 98
[2024-11-08 18:54:34,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:54:39,679 INFO L124 PetriNetUnfolderBase]: 24426/35324 cut-off events.
[2024-11-08 18:54:39,680 INFO L125 PetriNetUnfolderBase]: For 207/207 co-relation queries the response was YES.
[2024-11-08 18:54:39,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68237 conditions, 35324 events. 24426/35324 cut-off events. For 207/207 co-relation queries the response was YES. Maximal size of possible extension queue 4565. Compared 306197 event pairs, 23434 based on Foata normal form. 615/15668 useless extension candidates. Maximal degree in co-relation 68126. Up to 29449 conditions per place.
[2024-11-08 18:54:39,959 INFO L140 encePairwiseOnDemand]: 83/98 looper letters, 113 selfloop transitions, 5 changer transitions 0/152 dead transitions.
[2024-11-08 18:54:39,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 152 transitions, 801 flow
[2024-11-08 18:54:39,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 18:54:39,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-08 18:54:39,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 295 transitions.
[2024-11-08 18:54:39,962 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6020408163265306
[2024-11-08 18:54:39,962 INFO L175 Difference]: Start difference. First operand has 94 places, 106 transitions, 392 flow. Second operand 5 states and 295 transitions.
[2024-11-08 18:54:39,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 152 transitions, 801 flow
[2024-11-08 18:54:39,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 152 transitions, 767 flow, removed 9 selfloop flow, removed 2 redundant places.
[2024-11-08 18:54:39,970 INFO L231 Difference]: Finished difference. Result has 98 places, 108 transitions, 411 flow
[2024-11-08 18:54:39,971 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=411, PETRI_PLACES=98, PETRI_TRANSITIONS=108}
[2024-11-08 18:54:39,972 INFO L277 CegarLoopForPetriNet]: 93 programPoint places, 5 predicate places.
[2024-11-08 18:54:39,972 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 108 transitions, 411 flow
[2024-11-08 18:54:39,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:54:39,972 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:54:39,972 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:54:39,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 18:54:39,973 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-08 18:54:39,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:54:39,973 INFO L85 PathProgramCache]: Analyzing trace with hash 346819599, now seen corresponding path program 1 times
[2024-11-08 18:54:39,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:54:39,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010949570]
[2024-11-08 18:54:39,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:54:39,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:54:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:54:40,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:54:40,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:54:40,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010949570]
[2024-11-08 18:54:40,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010949570] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:54:40,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:54:40,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-08 18:54:40,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182096097]
[2024-11-08 18:54:40,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:54:40,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 18:54:40,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:54:40,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 18:54:40,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 18:54:40,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 98
[2024-11-08 18:54:40,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 108 transitions, 411 flow. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:54:40,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:54:40,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 98
[2024-11-08 18:54:40,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:54:45,094 INFO L124 PetriNetUnfolderBase]: 21270/30836 cut-off events.
[2024-11-08 18:54:45,094 INFO L125 PetriNetUnfolderBase]: For 1994/1994 co-relation queries the response was YES.
[2024-11-08 18:54:45,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68555 conditions, 30836 events. 21270/30836 cut-off events. For 1994/1994 co-relation queries the response was YES. Maximal size of possible extension queue 3939. Compared 264709 event pairs, 20396 based on Foata normal form. 0/13453 useless extension candidates. Maximal degree in co-relation 68449. Up to 27778 conditions per place.
[2024-11-08 18:54:45,402 INFO L140 encePairwiseOnDemand]: 96/98 looper letters, 66 selfloop transitions, 1 changer transitions 0/107 dead transitions.
[2024-11-08 18:54:45,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 107 transitions, 543 flow
[2024-11-08 18:54:45,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 18:54:45,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-08 18:54:45,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions.
[2024-11-08 18:54:45,404 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5986394557823129
[2024-11-08 18:54:45,404 INFO L175 Difference]: Start difference. First operand has 98 places, 108 transitions, 411 flow. Second operand 3 states and 176 transitions.
[2024-11-08 18:54:45,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 107 transitions, 543 flow
[2024-11-08 18:54:45,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 107 transitions, 539 flow, removed 1 selfloop flow, removed 1 redundant places.
[2024-11-08 18:54:45,411 INFO L231 Difference]: Finished difference. Result has 98 places, 107 transitions, 407 flow
[2024-11-08 18:54:45,411 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=407, PETRI_PLACES=98, PETRI_TRANSITIONS=107}
[2024-11-08 18:54:45,412 INFO L277 CegarLoopForPetriNet]: 93 programPoint places, 5 predicate places.
[2024-11-08 18:54:45,412 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 107 transitions, 407 flow
[2024-11-08 18:54:45,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:54:45,413 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:54:45,413 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:54:45,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-08 18:54:45,413 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-08 18:54:45,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:54:45,414 INFO L85 PathProgramCache]: Analyzing trace with hash 346819600, now seen corresponding path program 1 times
[2024-11-08 18:54:45,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:54:45,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27612744]
[2024-11-08 18:54:45,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:54:45,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:54:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:54:45,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:54:45,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:54:45,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27612744]
[2024-11-08 18:54:45,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27612744] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:54:45,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:54:45,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:54:45,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021935819]
[2024-11-08 18:54:45,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:54:45,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 18:54:45,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:54:45,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 18:54:45,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 18:54:45,476 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 98
[2024-11-08 18:54:45,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 107 transitions, 407 flow. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:54:45,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:54:45,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 98
[2024-11-08 18:54:45,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand