./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread/reorder_5.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/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_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/reorder_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/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_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/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 0517a9ebb69eeca4ecbb6ac063832eb703719698fb2ee670ca348e2c511f9dfd
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:55:35,409 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:55:35,483 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2023-11-19 07:55:35,489 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:55:35,490 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:55:35,521 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:55:35,527 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:55:35,528 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:55:35,529 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:55:35,534 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:55:35,535 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:55:35,535 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:55:35,537 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:55:35,538 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:55:35,539 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:55:35,539 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:55:35,540 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:55:35,540 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:55:35,541 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:55:35,541 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:55:35,542 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:55:35,542 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:55:35,543 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true
[2023-11-19 07:55:35,543 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:55:35,543 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:55:35,544 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:55:35,544 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:55:35,545 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:55:35,546 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:55:35,546 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:55:35,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:55:35,548 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:55:35,548 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:55:35,548 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:55:35,549 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:55:35,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:55:35,549 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:55:35,550 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:55:35,550 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:55:35,550 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:55:35,550 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:55:35,551 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_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0517a9ebb69eeca4ecbb6ac063832eb703719698fb2ee670ca348e2c511f9dfd
[2023-11-19 07:55:35,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:55:35,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:55:35,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:55:35,863 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:55:35,864 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:55:35,865 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread/reorder_5.i
[2023-11-19 07:55:39,187 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:55:39,596 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:55:39,597 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/sv-benchmarks/c/pthread/reorder_5.i
[2023-11-19 07:55:39,625 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/bin/uautomizer-verify-uCwYo4JHxu/data/cdf0fdd12/ee32d1f3792f4559ac67f2c7c00204be/FLAG0877680aa
[2023-11-19 07:55:39,644 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/bin/uautomizer-verify-uCwYo4JHxu/data/cdf0fdd12/ee32d1f3792f4559ac67f2c7c00204be
[2023-11-19 07:55:39,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:55:39,654 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:55:39,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:55:39,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:55:39,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:55:39,668 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:39" (1/1) ...
[2023-11-19 07:55:39,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bc74b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:39, skipping insertion in model container
[2023-11-19 07:55:39,669 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:39" (1/1) ...
[2023-11-19 07:55:39,758 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:55:40,564 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:55:40,580 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:55:40,658 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:55:40,763 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:55:40,764 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:55:40,764 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:55:40,772 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:55:40,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:40 WrapperNode
[2023-11-19 07:55:40,773 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:55:40,774 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:55:40,774 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:55:40,774 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:55:40,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:40" (1/1) ...
[2023-11-19 07:55:40,802 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:40" (1/1) ...
[2023-11-19 07:55:40,839 INFO L138 Inliner]: procedures = 373, calls = 56, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 191
[2023-11-19 07:55:40,840 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:55:40,841 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:55:40,841 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:55:40,841 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:55:40,852 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:40" (1/1) ...
[2023-11-19 07:55:40,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:40" (1/1) ...
[2023-11-19 07:55:40,875 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:40" (1/1) ...
[2023-11-19 07:55:40,876 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:40" (1/1) ...
[2023-11-19 07:55:40,884 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:40" (1/1) ...
[2023-11-19 07:55:40,897 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:40" (1/1) ...
[2023-11-19 07:55:40,911 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:40" (1/1) ...
[2023-11-19 07:55:40,913 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:40" (1/1) ...
[2023-11-19 07:55:40,923 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:55:40,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:55:40,924 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:55:40,924 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:55:40,925 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:40" (1/1) ...
[2023-11-19 07:55:40,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:55:40,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:55:40,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:55:40,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:55:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf
[2023-11-19 07:55:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2023-11-19 07:55:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:55:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-11-19 07:55:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:55:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2023-11-19 07:55:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-11-19 07:55:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure setThread
[2023-11-19 07:55:41,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread
[2023-11-19 07:55:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-11-19 07:55:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:55:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread
[2023-11-19 07:55:41,003 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread
[2023-11-19 07:55:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:55:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:55:41,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:55:41,005 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 07:55:41,171 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:55:41,174 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:55:41,558 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:55:41,580 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:55:41,580 INFO L302 CfgBuilder]: Removed 4 assume(true) statements.
[2023-11-19 07:55:41,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:41 BoogieIcfgContainer
[2023-11-19 07:55:41,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:55:41,588 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:55:41,588 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:55:41,595 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:55:41,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:55:39" (1/3) ...
[2023-11-19 07:55:41,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299c87d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:41, skipping insertion in model container
[2023-11-19 07:55:41,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:40" (2/3) ...
[2023-11-19 07:55:41,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299c87d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:41, skipping insertion in model container
[2023-11-19 07:55:41,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:41" (3/3) ...
[2023-11-19 07:55:41,603 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5.i
[2023-11-19 07:55:41,613 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-11-19 07:55:41,626 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:55:41,627 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations.
[2023-11-19 07:55:41,627 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-11-19 07:55:41,742 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2023-11-19 07:55:41,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 195 places, 207 transitions, 434 flow
[2023-11-19 07:55:41,999 INFO L124 PetriNetUnfolderBase]: 37/419 cut-off events.
[2023-11-19 07:55:42,000 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES.
[2023-11-19 07:55:42,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 419 events. 37/419 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1555 event pairs, 0 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 221. Up to 8 conditions per place.
[2023-11-19 07:55:42,009 INFO L82 GeneralOperation]: Start removeDead. Operand has 195 places, 207 transitions, 434 flow
[2023-11-19 07:55:42,017 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 195 places, 207 transitions, 434 flow
[2023-11-19 07:55:42,021 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 07:55:42,031 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 195 places, 207 transitions, 434 flow
[2023-11-19 07:55:42,035 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 195 places, 207 transitions, 434 flow
[2023-11-19 07:55:42,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 195 places, 207 transitions, 434 flow
[2023-11-19 07:55:42,103 INFO L124 PetriNetUnfolderBase]: 37/419 cut-off events.
[2023-11-19 07:55:42,103 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES.
[2023-11-19 07:55:42,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 419 events. 37/419 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1555 event pairs, 0 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 221. Up to 8 conditions per place.
[2023-11-19 07:55:42,112 INFO L119 LiptonReduction]: Number of co-enabled transitions 3378
[2023-11-19 07:56:02,314 INFO L134 LiptonReduction]: Checked pairs total: 6058
[2023-11-19 07:56:02,314 INFO L136 LiptonReduction]: Total number of compositions: 216
[2023-11-19 07:56:02,331 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:56:02,337 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;@505b4f6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:56:02,337 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations.
[2023-11-19 07:56:02,343 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 07:56:02,343 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events.
[2023-11-19 07:56:02,343 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:56:02,343 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:56:02,344 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-11-19 07:56:02,344 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] ===
[2023-11-19 07:56:02,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:56:02,350 INFO L85 PathProgramCache]: Analyzing trace with hash 22960026, now seen corresponding path program 1 times
[2023-11-19 07:56:02,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:56:02,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189063726]
[2023-11-19 07:56:02,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:56:02,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:56:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:56:02,978 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 07:56:02,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:56:02,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189063726]
[2023-11-19 07:56:02,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189063726] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:56:02,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:56:02,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:56:02,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286492144]
[2023-11-19 07:56:02,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:56:02,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:56:03,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:56:03,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:56:03,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:56:03,158 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 423
[2023-11-19 07:56:03,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 35 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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 07:56:03,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:56:03,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 423
[2023-11-19 07:56:03,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:56:03,385 INFO L124 PetriNetUnfolderBase]: 190/433 cut-off events.
[2023-11-19 07:56:03,386 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES.
[2023-11-19 07:56:03,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 869 conditions, 433 events. 190/433 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1981 event pairs, 24 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 589. Up to 188 conditions per place.
[2023-11-19 07:56:03,423 INFO L140 encePairwiseOnDemand]: 406/423 looper letters, 37 selfloop transitions, 12 changer transitions 4/57 dead transitions.
[2023-11-19 07:56:03,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 57 transitions, 252 flow
[2023-11-19 07:56:03,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:56:03,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-11-19 07:56:03,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 745 transitions.
[2023-11-19 07:56:03,454 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44030732860520094
[2023-11-19 07:56:03,455 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 745 transitions.
[2023-11-19 07:56:03,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 745 transitions.
[2023-11-19 07:56:03,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:56:03,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 745 transitions.
[2023-11-19 07:56:03,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 186.25) internal successors, (745), 4 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:56:03,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 423.0) internal successors, (2115), 5 states have internal predecessors, (2115), 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 07:56:03,484 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 423.0) internal successors, (2115), 5 states have internal predecessors, (2115), 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 07:56:03,486 INFO L175 Difference]: Start difference. First operand has 36 places, 35 transitions, 90 flow. Second operand 4 states and 745 transitions.
[2023-11-19 07:56:03,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 57 transitions, 252 flow
[2023-11-19 07:56:03,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 57 transitions, 252 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:56:03,494 INFO L231 Difference]: Finished difference. Result has 39 places, 39 transitions, 158 flow
[2023-11-19 07:56:03,497 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=158, PETRI_PLACES=39, PETRI_TRANSITIONS=39}
[2023-11-19 07:56:03,501 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places.
[2023-11-19 07:56:03,502 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 39 transitions, 158 flow
[2023-11-19 07:56:03,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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 07:56:03,503 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:56:03,503 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-11-19 07:56:03,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:56:03,503 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] ===
[2023-11-19 07:56:03,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:56:03,505 INFO L85 PathProgramCache]: Analyzing trace with hash 22960025, now seen corresponding path program 1 times
[2023-11-19 07:56:03,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:56:03,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760886861]
[2023-11-19 07:56:03,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:56:03,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:56:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:56:03,721 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 07:56:03,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:56:03,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760886861]
[2023-11-19 07:56:03,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760886861] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:56:03,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:56:03,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:56:03,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591527845]
[2023-11-19 07:56:03,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:56:03,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:56:03,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:56:03,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:56:03,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:56:03,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 423
[2023-11-19 07:56:03,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 39 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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 07:56:03,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:56:03,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 423
[2023-11-19 07:56:03,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:56:03,915 INFO L124 PetriNetUnfolderBase]: 141/339 cut-off events.
[2023-11-19 07:56:03,916 INFO L125 PetriNetUnfolderBase]: For 137/137 co-relation queries the response was YES.
[2023-11-19 07:56:03,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 824 conditions, 339 events. 141/339 cut-off events. For 137/137 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1403 event pairs, 82 based on Foata normal form. 29/368 useless extension candidates. Maximal degree in co-relation 546. Up to 194 conditions per place.
[2023-11-19 07:56:03,919 INFO L140 encePairwiseOnDemand]: 411/423 looper letters, 32 selfloop transitions, 7 changer transitions 2/45 dead transitions.
[2023-11-19 07:56:03,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 45 transitions, 260 flow
[2023-11-19 07:56:03,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:56:03,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:56:03,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 579 transitions.
[2023-11-19 07:56:03,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4562647754137116
[2023-11-19 07:56:03,924 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 579 transitions.
[2023-11-19 07:56:03,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 579 transitions.
[2023-11-19 07:56:03,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:56:03,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 579 transitions.
[2023-11-19 07:56:03,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:56:03,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 423.0) internal successors, (1692), 4 states have internal predecessors, (1692), 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 07:56:03,937 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 423.0) internal successors, (1692), 4 states have internal predecessors, (1692), 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 07:56:03,937 INFO L175 Difference]: Start difference. First operand has 39 places, 39 transitions, 158 flow. Second operand 3 states and 579 transitions.
[2023-11-19 07:56:03,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 45 transitions, 260 flow
[2023-11-19 07:56:03,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 45 transitions, 254 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-19 07:56:03,944 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 144 flow
[2023-11-19 07:56:03,950 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=37, PETRI_TRANSITIONS=33}
[2023-11-19 07:56:03,951 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places.
[2023-11-19 07:56:03,951 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 144 flow
[2023-11-19 07:56:03,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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 07:56:03,952 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:56:03,952 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2023-11-19 07:56:03,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-19 07:56:03,953 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] ===
[2023-11-19 07:56:03,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:56:03,956 INFO L85 PathProgramCache]: Analyzing trace with hash 589770300, now seen corresponding path program 1 times
[2023-11-19 07:56:03,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:56:03,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359958226]
[2023-11-19 07:56:03,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:56:03,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:56:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:56:04,062 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:56:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:56:04,110 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:56:04,111 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 07:56:04,112 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining)
[2023-11-19 07:56:04,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining)
[2023-11-19 07:56:04,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining)
[2023-11-19 07:56:04,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining)
[2023-11-19 07:56:04,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining)
[2023-11-19 07:56:04,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining)
[2023-11-19 07:56:04,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining)
[2023-11-19 07:56:04,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining)
[2023-11-19 07:56:04,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining)
[2023-11-19 07:56:04,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 10 remaining)
[2023-11-19 07:56:04,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-19 07:56:04,123 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-11-19 07:56:04,125 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-11-19 07:56:04,125 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-11-19 07:56:04,175 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions.
[2023-11-19 07:56:04,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 217 places, 230 transitions, 504 flow
[2023-11-19 07:56:04,442 INFO L124 PetriNetUnfolderBase]: 149/1356 cut-off events.
[2023-11-19 07:56:04,443 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES.
[2023-11-19 07:56:04,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1445 conditions, 1356 events. 149/1356 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 7794 event pairs, 2 based on Foata normal form. 0/1144 useless extension candidates. Maximal degree in co-relation 777. Up to 32 conditions per place.
[2023-11-19 07:56:04,452 INFO L82 GeneralOperation]: Start removeDead. Operand has 217 places, 230 transitions, 504 flow
[2023-11-19 07:56:04,459 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 217 places, 230 transitions, 504 flow
[2023-11-19 07:56:04,459 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 07:56:04,460 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 217 places, 230 transitions, 504 flow
[2023-11-19 07:56:04,461 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 217 places, 230 transitions, 504 flow
[2023-11-19 07:56:04,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 217 places, 230 transitions, 504 flow
[2023-11-19 07:56:04,649 INFO L124 PetriNetUnfolderBase]: 149/1356 cut-off events.
[2023-11-19 07:56:04,650 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES.
[2023-11-19 07:56:04,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1445 conditions, 1356 events. 149/1356 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 7794 event pairs, 2 based on Foata normal form. 0/1144 useless extension candidates. Maximal degree in co-relation 777. Up to 32 conditions per place.
[2023-11-19 07:56:04,687 INFO L119 LiptonReduction]: Number of co-enabled transitions 7660
[2023-11-19 07:56:22,306 INFO L134 LiptonReduction]: Checked pairs total: 16826
[2023-11-19 07:56:22,306 INFO L136 LiptonReduction]: Total number of compositions: 232
[2023-11-19 07:56:22,310 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:56:22,311 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;@505b4f6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:56:22,312 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations.
[2023-11-19 07:56:22,316 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 07:56:22,316 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events.
[2023-11-19 07:56:22,316 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:56:22,317 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:56:22,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2023-11-19 07:56:22,317 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] ===
[2023-11-19 07:56:22,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:56:22,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1172929896, now seen corresponding path program 1 times
[2023-11-19 07:56:22,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:56:22,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794264965]
[2023-11-19 07:56:22,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:56:22,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:56:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:56:22,503 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 07:56:22,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:56:22,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794264965]
[2023-11-19 07:56:22,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794264965] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:56:22,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:56:22,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:56:22,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834464699]
[2023-11-19 07:56:22,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:56:22,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:56:22,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:56:22,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:56:22,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:56:22,639 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 462
[2023-11-19 07:56:22,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 47 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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 07:56:22,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:56:22,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 462
[2023-11-19 07:56:22,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:56:24,300 INFO L124 PetriNetUnfolderBase]: 7401/11668 cut-off events.
[2023-11-19 07:56:24,300 INFO L125 PetriNetUnfolderBase]: For 853/853 co-relation queries the response was YES.
[2023-11-19 07:56:24,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23679 conditions, 11668 events. 7401/11668 cut-off events. For 853/853 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 70879 event pairs, 1832 based on Foata normal form. 0/9803 useless extension candidates. Maximal degree in co-relation 15683. Up to 5523 conditions per place.
[2023-11-19 07:56:24,400 INFO L140 encePairwiseOnDemand]: 443/462 looper letters, 65 selfloop transitions, 14 changer transitions 2/87 dead transitions.
[2023-11-19 07:56:24,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 87 transitions, 404 flow
[2023-11-19 07:56:24,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 07:56:24,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-11-19 07:56:24,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 833 transitions.
[2023-11-19 07:56:24,405 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45075757575757575
[2023-11-19 07:56:24,405 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 833 transitions.
[2023-11-19 07:56:24,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 833 transitions.
[2023-11-19 07:56:24,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:56:24,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 833 transitions.
[2023-11-19 07:56:24,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 208.25) internal successors, (833), 4 states have internal predecessors, (833), 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 07:56:24,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 462.0) internal successors, (2310), 5 states have internal predecessors, (2310), 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 07:56:24,416 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 462.0) internal successors, (2310), 5 states have internal predecessors, (2310), 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 07:56:24,417 INFO L175 Difference]: Start difference. First operand has 48 places, 47 transitions, 138 flow. Second operand 4 states and 833 transitions.
[2023-11-19 07:56:24,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 87 transitions, 404 flow
[2023-11-19 07:56:24,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 87 transitions, 404 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:56:24,427 INFO L231 Difference]: Finished difference. Result has 54 places, 59 transitions, 252 flow
[2023-11-19 07:56:24,427 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=462, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=252, PETRI_PLACES=54, PETRI_TRANSITIONS=59}
[2023-11-19 07:56:24,428 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 6 predicate places.
[2023-11-19 07:56:24,429 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 59 transitions, 252 flow
[2023-11-19 07:56:24,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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 07:56:24,430 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:56:24,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2023-11-19 07:56:24,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-19 07:56:24,430 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] ===
[2023-11-19 07:56:24,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:56:24,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1172929894, now seen corresponding path program 1 times
[2023-11-19 07:56:24,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:56:24,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977209671]
[2023-11-19 07:56:24,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:56:24,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:56:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:56:24,520 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 07:56:24,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:56:24,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977209671]
[2023-11-19 07:56:24,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977209671] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:56:24,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:56:24,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:56:24,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706439209]
[2023-11-19 07:56:24,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:56:24,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:56:24,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:56:24,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:56:24,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:56:24,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 462
[2023-11-19 07:56:24,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 59 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:56:24,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:56:24,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 462
[2023-11-19 07:56:24,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:56:25,941 INFO L124 PetriNetUnfolderBase]: 6064/9692 cut-off events.
[2023-11-19 07:56:25,942 INFO L125 PetriNetUnfolderBase]: For 4591/4591 co-relation queries the response was YES.
[2023-11-19 07:56:25,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22603 conditions, 9692 events. 6064/9692 cut-off events. For 4591/4591 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 58518 event pairs, 2738 based on Foata normal form. 378/9805 useless extension candidates. Maximal degree in co-relation 14906. Up to 5294 conditions per place.
[2023-11-19 07:56:26,018 INFO L140 encePairwiseOnDemand]: 450/462 looper letters, 59 selfloop transitions, 8 changer transitions 0/73 dead transitions.
[2023-11-19 07:56:26,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 73 transitions, 430 flow
[2023-11-19 07:56:26,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:56:26,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:56:26,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 650 transitions.
[2023-11-19 07:56:26,022 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.468975468975469
[2023-11-19 07:56:26,022 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 650 transitions.
[2023-11-19 07:56:26,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 650 transitions.
[2023-11-19 07:56:26,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:56:26,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 650 transitions.
[2023-11-19 07:56:26,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 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 07:56:26,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 462.0) internal successors, (1848), 4 states have internal predecessors, (1848), 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 07:56:26,031 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 462.0) internal successors, (1848), 4 states have internal predecessors, (1848), 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 07:56:26,032 INFO L175 Difference]: Start difference. First operand has 54 places, 59 transitions, 252 flow. Second operand 3 states and 650 transitions.
[2023-11-19 07:56:26,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 73 transitions, 430 flow
[2023-11-19 07:56:26,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 73 transitions, 430 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:56:26,056 INFO L231 Difference]: Finished difference. Result has 55 places, 55 transitions, 252 flow
[2023-11-19 07:56:26,057 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=462, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=55, PETRI_TRANSITIONS=55}
[2023-11-19 07:56:26,059 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 7 predicate places.
[2023-11-19 07:56:26,059 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 55 transitions, 252 flow
[2023-11-19 07:56:26,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:56:26,060 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:56:26,060 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1]
[2023-11-19 07:56:26,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-19 07:56:26,060 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] ===
[2023-11-19 07:56:26,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:56:26,061 INFO L85 PathProgramCache]: Analyzing trace with hash 312923712, now seen corresponding path program 1 times
[2023-11-19 07:56:26,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:56:26,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380321473]
[2023-11-19 07:56:26,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:56:26,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:56:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:56:26,254 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:56:26,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:56:26,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380321473]
[2023-11-19 07:56:26,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380321473] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:56:26,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585071995]
[2023-11-19 07:56:26,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:56:26,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:56:26,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:56:26,262 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:56:26,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-19 07:56:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:56:26,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-11-19 07:56:26,407 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:56:27,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26
[2023-11-19 07:56:27,317 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:56:27,317 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:56:27,365 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:56:27,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585071995] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:56:27,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-19 07:56:27,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 9
[2023-11-19 07:56:27,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570060633]
[2023-11-19 07:56:27,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:56:27,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2023-11-19 07:56:27,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:56:27,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2023-11-19 07:56:27,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=61, Unknown=0, NotChecked=0, Total=110
[2023-11-19 07:56:27,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 462
[2023-11-19 07:56:27,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 55 transitions, 252 flow. Second operand has 11 states, 11 states have (on average 188.9090909090909) internal successors, (2078), 11 states have internal predecessors, (2078), 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 07:56:27,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:56:27,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 462
[2023-11-19 07:56:27,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:56:29,199 INFO L124 PetriNetUnfolderBase]: 5982/9811 cut-off events.
[2023-11-19 07:56:29,199 INFO L125 PetriNetUnfolderBase]: For 5666/5666 co-relation queries the response was YES.
[2023-11-19 07:56:29,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23566 conditions, 9811 events. 5982/9811 cut-off events. For 5666/5666 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 59591 event pairs, 2220 based on Foata normal form. 0/9810 useless extension candidates. Maximal degree in co-relation 15015. Up to 3915 conditions per place.
[2023-11-19 07:56:29,285 INFO L140 encePairwiseOnDemand]: 446/462 looper letters, 88 selfloop transitions, 23 changer transitions 10/127 dead transitions.
[2023-11-19 07:56:29,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 127 transitions, 768 flow
[2023-11-19 07:56:29,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2023-11-19 07:56:29,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2023-11-19 07:56:29,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1625 transitions.
[2023-11-19 07:56:29,295 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43966450216450215
[2023-11-19 07:56:29,295 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1625 transitions.
[2023-11-19 07:56:29,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1625 transitions.
[2023-11-19 07:56:29,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:56:29,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1625 transitions.
[2023-11-19 07:56:29,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 203.125) internal successors, (1625), 8 states have internal predecessors, (1625), 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 07:56:29,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 462.0) internal successors, (4158), 9 states have internal predecessors, (4158), 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 07:56:29,321 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 462.0) internal successors, (4158), 9 states have internal predecessors, (4158), 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 07:56:29,322 INFO L175 Difference]: Start difference. First operand has 55 places, 55 transitions, 252 flow. Second operand 8 states and 1625 transitions.
[2023-11-19 07:56:29,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 127 transitions, 768 flow
[2023-11-19 07:56:29,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 127 transitions, 755 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-19 07:56:29,341 INFO L231 Difference]: Finished difference. Result has 58 places, 61 transitions, 342 flow
[2023-11-19 07:56:29,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=462, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=342, PETRI_PLACES=58, PETRI_TRANSITIONS=61}
[2023-11-19 07:56:29,346 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 10 predicate places.
[2023-11-19 07:56:29,346 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 61 transitions, 342 flow
[2023-11-19 07:56:29,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 188.9090909090909) internal successors, (2078), 11 states have internal predecessors, (2078), 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 07:56:29,348 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:56:29,348 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1]
[2023-11-19 07:56:29,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-19 07:56:29,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e88e4bb-b6e6-4046-bfa9-48b061f54fc4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2023-11-19 07:56:29,574 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] ===
[2023-11-19 07:56:29,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:56:29,574 INFO L85 PathProgramCache]: Analyzing trace with hash 312923710, now seen corresponding path program 1 times
[2023-11-19 07:56:29,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:56:29,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758559994]
[2023-11-19 07:56:29,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:56:29,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:56:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:56:29,684 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:56:29,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:56:29,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758559994]
[2023-11-19 07:56:29,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758559994] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:56:29,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:56:29,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:56:29,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935673409]
[2023-11-19 07:56:29,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:56:29,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:56:29,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:56:29,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:56:29,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:56:29,741 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 462
[2023-11-19 07:56:29,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 61 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 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 07:56:29,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:56:29,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 462
[2023-11-19 07:56:29,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand