./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix023_tso.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75570d19-6091-42bc-b436-b197dc92b75d/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75570d19-6091-42bc-b436-b197dc92b75d/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_75570d19-6091-42bc-b436-b197dc92b75d/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75570d19-6091-42bc-b436-b197dc92b75d/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix023_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75570d19-6091-42bc-b436-b197dc92b75d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75570d19-6091-42bc-b436-b197dc92b75d/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 19245e5542f28ce8a07a1858e0d4c05190b543a3d82e804c6a4eebc044c13d81
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:38:36,495 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:38:36,567 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75570d19-6091-42bc-b436-b197dc92b75d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-19 07:38:36,571 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:38:36,572 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:38:36,597 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:38:36,598 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:38:36,599 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:38:36,600 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:38:36,600 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:38:36,601 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:38:36,602 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:38:36,602 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:38:36,603 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:38:36,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:38:36,604 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:38:36,604 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:38:36,605 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:38:36,606 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:38:36,606 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:38:36,607 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:38:36,607 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:38:36,608 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:38:36,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:38:36,609 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:38:36,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:38:36,609 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:38:36,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:38:36,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:38:36,611 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:38:36,611 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:38:36,612 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:38:36,612 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:38:36,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:38:36,613 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:38:36,613 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:38:36,613 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:38:36,614 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:38:36,614 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:38:36,614 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_75570d19-6091-42bc-b436-b197dc92b75d/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75570d19-6091-42bc-b436-b197dc92b75d/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19245e5542f28ce8a07a1858e0d4c05190b543a3d82e804c6a4eebc044c13d81
[2023-11-19 07:38:36,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:38:36,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:38:36,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:38:36,976 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:38:36,978 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:38:36,980 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75570d19-6091-42bc-b436-b197dc92b75d/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/mix023_tso.i
[2023-11-19 07:38:40,170 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:38:40,508 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:38:40,509 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75570d19-6091-42bc-b436-b197dc92b75d/sv-benchmarks/c/pthread-wmm/mix023_tso.i
[2023-11-19 07:38:40,550 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75570d19-6091-42bc-b436-b197dc92b75d/bin/uautomizer-verify-uCwYo4JHxu/data/46c1750c4/f17c39713e2248c2b7ead9e594faf1b5/FLAG642e11d30
[2023-11-19 07:38:40,564 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75570d19-6091-42bc-b436-b197dc92b75d/bin/uautomizer-verify-uCwYo4JHxu/data/46c1750c4/f17c39713e2248c2b7ead9e594faf1b5
[2023-11-19 07:38:40,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:38:40,569 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:38:40,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:38:40,570 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:38:40,584 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:38:40,585 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:40" (1/1) ...
[2023-11-19 07:38:40,586 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d58888e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:40, skipping insertion in model container
[2023-11-19 07:38:40,587 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:40" (1/1) ...
[2023-11-19 07:38:40,673 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:38:40,893 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75570d19-6091-42bc-b436-b197dc92b75d/sv-benchmarks/c/pthread-wmm/mix023_tso.i[944,957]
[2023-11-19 07:38:41,275 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:38:41,288 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:38:41,305 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75570d19-6091-42bc-b436-b197dc92b75d/sv-benchmarks/c/pthread-wmm/mix023_tso.i[944,957]
[2023-11-19 07:38:41,384 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:38:41,442 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:38:41,442 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:38:41,450 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:38:41,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:41 WrapperNode
[2023-11-19 07:38:41,451 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:38:41,452 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:38:41,453 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:38:41,453 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:38:41,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:41" (1/1) ...
[2023-11-19 07:38:41,486 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:41" (1/1) ...
[2023-11-19 07:38:41,540 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 281
[2023-11-19 07:38:41,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:38:41,541 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:38:41,542 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:38:41,542 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:38:41,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:41" (1/1) ...
[2023-11-19 07:38:41,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:41" (1/1) ...
[2023-11-19 07:38:41,580 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:41" (1/1) ...
[2023-11-19 07:38:41,581 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:41" (1/1) ...
[2023-11-19 07:38:41,612 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:41" (1/1) ...
[2023-11-19 07:38:41,615 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:41" (1/1) ...
[2023-11-19 07:38:41,619 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:41" (1/1) ...
[2023-11-19 07:38:41,622 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:41" (1/1) ...
[2023-11-19 07:38:41,638 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:38:41,639 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:38:41,639 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:38:41,639 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:38:41,656 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:41" (1/1) ...
[2023-11-19 07:38:41,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:38:41,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75570d19-6091-42bc-b436-b197dc92b75d/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:38:41,731 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75570d19-6091-42bc-b436-b197dc92b75d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:38:41,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75570d19-6091-42bc-b436-b197dc92b75d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:38:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-11-19 07:38:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2023-11-19 07:38:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:38:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:38:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:38:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2023-11-19 07:38:41,780 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2023-11-19 07:38:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2023-11-19 07:38:41,780 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2023-11-19 07:38:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2023-11-19 07:38:41,780 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2023-11-19 07:38:41,780 INFO L130 BoogieDeclarations]: Found specification of procedure P3
[2023-11-19 07:38:41,780 INFO L138 BoogieDeclarations]: Found implementation of procedure P3
[2023-11-19 07:38:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:38:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2023-11-19 07:38:41,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:38:41,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:38:41,783 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 07:38:41,946 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:38:41,948 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:38:42,533 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:38:42,948 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:38:42,948 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 07:38:42,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:42 BoogieIcfgContainer
[2023-11-19 07:38:42,958 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:38:42,961 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:38:42,961 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:38:42,965 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:38:42,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:38:40" (1/3) ...
[2023-11-19 07:38:42,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75293c76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:42, skipping insertion in model container
[2023-11-19 07:38:42,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:41" (2/3) ...
[2023-11-19 07:38:42,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75293c76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:42, skipping insertion in model container
[2023-11-19 07:38:42,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:42" (3/3) ...
[2023-11-19 07:38:42,974 INFO L112 eAbstractionObserver]: Analyzing ICFG mix023_tso.i
[2023-11-19 07:38:42,984 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-11-19 07:38:42,997 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:38:42,997 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2023-11-19 07:38:42,998 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-11-19 07:38:43,094 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-11-19 07:38:43,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 165 places, 155 transitions, 326 flow
[2023-11-19 07:38:43,254 INFO L124 PetriNetUnfolderBase]: 3/151 cut-off events.
[2023-11-19 07:38:43,254 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:38:43,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 151 events. 3/151 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 77 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 112. Up to 2 conditions per place.
[2023-11-19 07:38:43,261 INFO L82 GeneralOperation]: Start removeDead. Operand has 165 places, 155 transitions, 326 flow
[2023-11-19 07:38:43,274 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 151 transitions, 314 flow
[2023-11-19 07:38:43,278 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 07:38:43,297 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 151 transitions, 314 flow
[2023-11-19 07:38:43,304 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 151 transitions, 314 flow
[2023-11-19 07:38:43,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 151 transitions, 314 flow
[2023-11-19 07:38:43,372 INFO L124 PetriNetUnfolderBase]: 3/151 cut-off events.
[2023-11-19 07:38:43,372 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:38:43,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 151 events. 3/151 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 77 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 112. Up to 2 conditions per place.
[2023-11-19 07:38:43,379 INFO L119 LiptonReduction]: Number of co-enabled transitions 3792
[2023-11-19 07:38:53,676 INFO L134 LiptonReduction]: Checked pairs total: 10961
[2023-11-19 07:38:53,676 INFO L136 LiptonReduction]: Total number of compositions: 134
[2023-11-19 07:38:53,702 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:38:53,711 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;@3f24788, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:38:53,711 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations.
[2023-11-19 07:38:53,716 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 07:38:53,716 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events.
[2023-11-19 07:38:53,717 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:38:53,717 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:38:53,717 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2023-11-19 07:38:53,718 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] ===
[2023-11-19 07:38:53,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:38:53,723 INFO L85 PathProgramCache]: Analyzing trace with hash 769864213, now seen corresponding path program 1 times
[2023-11-19 07:38:53,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:38:53,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489181070]
[2023-11-19 07:38:53,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:38:53,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:38:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:38:54,308 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 07:38:54,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:38:54,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489181070]
[2023-11-19 07:38:54,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489181070] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:38:54,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:38:54,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:38:54,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424389071]
[2023-11-19 07:38:54,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:38:54,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:38:54,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:38:54,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:38:54,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:38:54,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 289
[2023-11-19 07:38:54,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 32 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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 07:38:54,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:38:54,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 289
[2023-11-19 07:38:54,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:38:57,750 INFO L124 PetriNetUnfolderBase]: 7477/10660 cut-off events.
[2023-11-19 07:38:57,750 INFO L125 PetriNetUnfolderBase]: For 88/88 co-relation queries the response was YES.
[2023-11-19 07:38:57,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20962 conditions, 10660 events. 7477/10660 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 63263 event pairs, 1085 based on Foata normal form. 0/9743 useless extension candidates. Maximal degree in co-relation 20950. Up to 8473 conditions per place.
[2023-11-19 07:38:57,860 INFO L140 encePairwiseOnDemand]: 286/289 looper letters, 44 selfloop transitions, 2 changer transitions 0/50 dead transitions.
[2023-11-19 07:38:57,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 50 transitions, 210 flow
[2023-11-19 07:38:57,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:38:57,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:38:57,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 449 transitions.
[2023-11-19 07:38:57,880 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5178777393310265
[2023-11-19 07:38:57,881 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 449 transitions.
[2023-11-19 07:38:57,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 449 transitions.
[2023-11-19 07:38:57,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:38:57,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 449 transitions.
[2023-11-19 07:38:57,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 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 07:38:57,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 289.0) internal successors, (1156), 4 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:38:57,902 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 289.0) internal successors, (1156), 4 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:38:57,904 INFO L175 Difference]: Start difference. First operand has 45 places, 32 transitions, 76 flow. Second operand 3 states and 449 transitions.
[2023-11-19 07:38:57,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 50 transitions, 210 flow
[2023-11-19 07:38:57,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 50 transitions, 204 flow, removed 0 selfloop flow, removed 4 redundant places.
[2023-11-19 07:38:57,913 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 74 flow
[2023-11-19 07:38:57,915 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=42, PETRI_TRANSITIONS=31}
[2023-11-19 07:38:57,919 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -3 predicate places.
[2023-11-19 07:38:57,920 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 74 flow
[2023-11-19 07:38:57,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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 07:38:57,921 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:38:57,921 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:38:57,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:38:57,921 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] ===
[2023-11-19 07:38:57,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:38:57,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1251023408, now seen corresponding path program 1 times
[2023-11-19 07:38:57,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:38:57,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353055550]
[2023-11-19 07:38:57,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:38:57,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:38:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:38:58,163 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 07:38:58,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:38:58,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353055550]
[2023-11-19 07:38:58,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353055550] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:38:58,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:38:58,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:38:58,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730348465]
[2023-11-19 07:38:58,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:38:58,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:38:58,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:38:58,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:38:58,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:38:58,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 289
[2023-11-19 07:38:58,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:38:58,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:38:58,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 289
[2023-11-19 07:38:58,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:39:00,856 INFO L124 PetriNetUnfolderBase]: 6237/8870 cut-off events.
[2023-11-19 07:39:00,856 INFO L125 PetriNetUnfolderBase]: For 437/437 co-relation queries the response was YES.
[2023-11-19 07:39:00,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17970 conditions, 8870 events. 6237/8870 cut-off events. For 437/437 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 48835 event pairs, 1277 based on Foata normal form. 0/8448 useless extension candidates. Maximal degree in co-relation 17960. Up to 6561 conditions per place.
[2023-11-19 07:39:00,942 INFO L140 encePairwiseOnDemand]: 286/289 looper letters, 36 selfloop transitions, 2 changer transitions 2/44 dead transitions.
[2023-11-19 07:39:00,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 44 transitions, 182 flow
[2023-11-19 07:39:00,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:39:00,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:39:00,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 443 transitions.
[2023-11-19 07:39:00,948 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.510957324106113
[2023-11-19 07:39:00,948 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 443 transitions.
[2023-11-19 07:39:00,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 443 transitions.
[2023-11-19 07:39:00,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:39:00,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 443 transitions.
[2023-11-19 07:39:00,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 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 07:39:00,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 289.0) internal successors, (1156), 4 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:39:00,959 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 289.0) internal successors, (1156), 4 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:39:00,959 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 74 flow. Second operand 3 states and 443 transitions.
[2023-11-19 07:39:00,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 44 transitions, 182 flow
[2023-11-19 07:39:00,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 44 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-19 07:39:00,964 INFO L231 Difference]: Finished difference. Result has 41 places, 29 transitions, 70 flow
[2023-11-19 07:39:00,972 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=41, PETRI_TRANSITIONS=29}
[2023-11-19 07:39:00,973 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -4 predicate places.
[2023-11-19 07:39:00,974 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 70 flow
[2023-11-19 07:39:00,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:39:00,975 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:39:00,975 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:39:00,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-19 07:39:00,975 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] ===
[2023-11-19 07:39:00,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:00,977 INFO L85 PathProgramCache]: Analyzing trace with hash -357280193, now seen corresponding path program 1 times
[2023-11-19 07:39:00,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:39:00,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040159654]
[2023-11-19 07:39:00,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:39:00,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:39:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:39:15,971 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 07:39:15,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:39:15,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040159654]
[2023-11-19 07:39:15,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040159654] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:39:15,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:39:15,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:39:15,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871857959]
[2023-11-19 07:39:15,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:39:15,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:39:15,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:39:15,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:39:15,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:39:16,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 289
[2023-11-19 07:39:16,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 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 07:39:16,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:39:16,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 289
[2023-11-19 07:39:16,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:39:17,817 INFO L124 PetriNetUnfolderBase]: 6611/8982 cut-off events.
[2023-11-19 07:39:17,817 INFO L125 PetriNetUnfolderBase]: For 328/328 co-relation queries the response was YES.
[2023-11-19 07:39:17,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18560 conditions, 8982 events. 6611/8982 cut-off events. For 328/328 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 45980 event pairs, 1883 based on Foata normal form. 192/9165 useless extension candidates. Maximal degree in co-relation 18550. Up to 6713 conditions per place.
[2023-11-19 07:39:17,893 INFO L140 encePairwiseOnDemand]: 286/289 looper letters, 42 selfloop transitions, 2 changer transitions 0/46 dead transitions.
[2023-11-19 07:39:17,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 46 transitions, 198 flow
[2023-11-19 07:39:17,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:39:17,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:39:17,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 408 transitions.
[2023-11-19 07:39:17,896 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47058823529411764
[2023-11-19 07:39:17,896 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 408 transitions.
[2023-11-19 07:39:17,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 408 transitions.
[2023-11-19 07:39:17,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:39:17,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 408 transitions.
[2023-11-19 07:39:17,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 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 07:39:17,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 289.0) internal successors, (1156), 4 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:39:17,903 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 289.0) internal successors, (1156), 4 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:39:17,903 INFO L175 Difference]: Start difference. First operand has 41 places, 29 transitions, 70 flow. Second operand 3 states and 408 transitions.
[2023-11-19 07:39:17,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 46 transitions, 198 flow
[2023-11-19 07:39:17,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 46 transitions, 192 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-19 07:39:17,911 INFO L231 Difference]: Finished difference. Result has 41 places, 29 transitions, 74 flow
[2023-11-19 07:39:17,911 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=41, PETRI_TRANSITIONS=29}
[2023-11-19 07:39:17,912 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -4 predicate places.
[2023-11-19 07:39:17,913 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 74 flow
[2023-11-19 07:39:17,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 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 07:39:17,913 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:39:17,914 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:39:17,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-19 07:39:17,914 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] ===
[2023-11-19 07:39:17,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:17,915 INFO L85 PathProgramCache]: Analyzing trace with hash -600950998, now seen corresponding path program 1 times
[2023-11-19 07:39:17,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:39:17,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034307900]
[2023-11-19 07:39:17,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:39:17,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:39:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:39:18,418 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 07:39:18,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:39:18,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034307900]
[2023-11-19 07:39:18,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034307900] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:39:18,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:39:18,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:39:18,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975153877]
[2023-11-19 07:39:18,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:39:18,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:39:18,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:39:18,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:39:18,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:39:18,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 289
[2023-11-19 07:39:18,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 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 07:39:18,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:39:18,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 289
[2023-11-19 07:39:18,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:39:19,390 INFO L124 PetriNetUnfolderBase]: 4165/5982 cut-off events.
[2023-11-19 07:39:19,391 INFO L125 PetriNetUnfolderBase]: For 421/421 co-relation queries the response was YES.
[2023-11-19 07:39:19,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12619 conditions, 5982 events. 4165/5982 cut-off events. For 421/421 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 30844 event pairs, 1717 based on Foata normal form. 96/6056 useless extension candidates. Maximal degree in co-relation 12608. Up to 3409 conditions per place.
[2023-11-19 07:39:19,435 INFO L140 encePairwiseOnDemand]: 286/289 looper letters, 35 selfloop transitions, 2 changer transitions 0/41 dead transitions.
[2023-11-19 07:39:19,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 41 transitions, 175 flow
[2023-11-19 07:39:19,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:39:19,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:39:19,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 440 transitions.
[2023-11-19 07:39:19,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5074971164936563
[2023-11-19 07:39:19,439 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 440 transitions.
[2023-11-19 07:39:19,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 440 transitions.
[2023-11-19 07:39:19,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:39:19,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 440 transitions.
[2023-11-19 07:39:19,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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 07:39:19,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 289.0) internal successors, (1156), 4 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:39:19,447 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 289.0) internal successors, (1156), 4 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:39:19,447 INFO L175 Difference]: Start difference. First operand has 41 places, 29 transitions, 74 flow. Second operand 3 states and 440 transitions.
[2023-11-19 07:39:19,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 41 transitions, 175 flow
[2023-11-19 07:39:19,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 41 transitions, 169 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-19 07:39:19,450 INFO L231 Difference]: Finished difference. Result has 42 places, 29 transitions, 78 flow
[2023-11-19 07:39:19,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=42, PETRI_TRANSITIONS=29}
[2023-11-19 07:39:19,453 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -3 predicate places.
[2023-11-19 07:39:19,453 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 29 transitions, 78 flow
[2023-11-19 07:39:19,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 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 07:39:19,454 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:39:19,455 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:39:19,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-19 07:39:19,455 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] ===
[2023-11-19 07:39:19,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:19,456 INFO L85 PathProgramCache]: Analyzing trace with hash -665198530, now seen corresponding path program 1 times
[2023-11-19 07:39:19,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:39:19,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975921126]
[2023-11-19 07:39:19,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:39:19,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:39:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:39:19,966 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 07:39:19,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:39:19,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975921126]
[2023-11-19 07:39:19,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975921126] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:39:19,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:39:19,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:39:19,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642689908]
[2023-11-19 07:39:19,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:39:19,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-19 07:39:19,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:39:19,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 07:39:19,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-19 07:39:19,988 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 289
[2023-11-19 07:39:19,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 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 07:39:19,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:39:19,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 289
[2023-11-19 07:39:19,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:39:21,086 INFO L124 PetriNetUnfolderBase]: 3853/5538 cut-off events.
[2023-11-19 07:39:21,086 INFO L125 PetriNetUnfolderBase]: For 380/380 co-relation queries the response was YES.
[2023-11-19 07:39:21,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12236 conditions, 5538 events. 3853/5538 cut-off events. For 380/380 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 29355 event pairs, 755 based on Foata normal form. 400/5913 useless extension candidates. Maximal degree in co-relation 12224. Up to 3399 conditions per place.
[2023-11-19 07:39:21,116 INFO L140 encePairwiseOnDemand]: 282/289 looper letters, 40 selfloop transitions, 5 changer transitions 29/78 dead transitions.
[2023-11-19 07:39:21,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 78 transitions, 342 flow
[2023-11-19 07:39:21,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-11-19 07:39:21,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-11-19 07:39:21,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 701 transitions.
[2023-11-19 07:39:21,121 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.485121107266436
[2023-11-19 07:39:21,121 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 701 transitions.
[2023-11-19 07:39:21,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 701 transitions.
[2023-11-19 07:39:21,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:39:21,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 701 transitions.
[2023-11-19 07:39:21,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 140.2) internal successors, (701), 5 states have internal predecessors, (701), 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 07:39:21,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 289.0) internal successors, (1734), 6 states have internal predecessors, (1734), 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 07:39:21,131 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 289.0) internal successors, (1734), 6 states have internal predecessors, (1734), 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 07:39:21,132 INFO L175 Difference]: Start difference. First operand has 42 places, 29 transitions, 78 flow. Second operand 5 states and 701 transitions.
[2023-11-19 07:39:21,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 78 transitions, 342 flow
[2023-11-19 07:39:21,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 78 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-19 07:39:21,141 INFO L231 Difference]: Finished difference. Result has 47 places, 33 transitions, 119 flow
[2023-11-19 07:39:21,141 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=119, PETRI_PLACES=47, PETRI_TRANSITIONS=33}
[2023-11-19 07:39:21,145 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 2 predicate places.
[2023-11-19 07:39:21,145 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 33 transitions, 119 flow
[2023-11-19 07:39:21,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 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 07:39:21,146 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:39:21,146 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:39:21,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-19 07:39:21,147 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] ===
[2023-11-19 07:39:21,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:21,148 INFO L85 PathProgramCache]: Analyzing trace with hash -74432281, now seen corresponding path program 1 times
[2023-11-19 07:39:21,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:39:21,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244486544]
[2023-11-19 07:39:21,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:39:21,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:39:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:39:21,729 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 07:39:21,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:39:21,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244486544]
[2023-11-19 07:39:21,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244486544] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:39:21,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:39:21,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-19 07:39:21,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892121989]
[2023-11-19 07:39:21,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:39:21,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-19 07:39:21,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:39:21,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-19 07:39:21,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-19 07:39:21,757 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 289
[2023-11-19 07:39:21,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 33 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 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 07:39:21,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:39:21,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 289
[2023-11-19 07:39:21,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:39:22,735 INFO L124 PetriNetUnfolderBase]: 2257/3402 cut-off events.
[2023-11-19 07:39:22,735 INFO L125 PetriNetUnfolderBase]: For 1130/1130 co-relation queries the response was YES.
[2023-11-19 07:39:22,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9447 conditions, 3402 events. 2257/3402 cut-off events. For 1130/1130 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 17672 event pairs, 499 based on Foata normal form. 256/3633 useless extension candidates. Maximal degree in co-relation 9432. Up to 1067 conditions per place.
[2023-11-19 07:39:22,760 INFO L140 encePairwiseOnDemand]: 282/289 looper letters, 54 selfloop transitions, 9 changer transitions 29/96 dead transitions.
[2023-11-19 07:39:22,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 96 transitions, 497 flow
[2023-11-19 07:39:22,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-19 07:39:22,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-11-19 07:39:22,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 844 transitions.
[2023-11-19 07:39:22,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4867358708189158
[2023-11-19 07:39:22,767 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 844 transitions.
[2023-11-19 07:39:22,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 844 transitions.
[2023-11-19 07:39:22,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:39:22,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 844 transitions.
[2023-11-19 07:39:22,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 140.66666666666666) internal successors, (844), 6 states have internal predecessors, (844), 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 07:39:22,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 289.0) internal successors, (2023), 7 states have internal predecessors, (2023), 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 07:39:22,779 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 289.0) internal successors, (2023), 7 states have internal predecessors, (2023), 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 07:39:22,779 INFO L175 Difference]: Start difference. First operand has 47 places, 33 transitions, 119 flow. Second operand 6 states and 844 transitions.
[2023-11-19 07:39:22,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 96 transitions, 497 flow
[2023-11-19 07:39:22,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 96 transitions, 490 flow, removed 1 selfloop flow, removed 2 redundant places.
[2023-11-19 07:39:22,802 INFO L231 Difference]: Finished difference. Result has 51 places, 37 transitions, 184 flow
[2023-11-19 07:39:22,802 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=184, PETRI_PLACES=51, PETRI_TRANSITIONS=37}
[2023-11-19 07:39:22,803 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 6 predicate places.
[2023-11-19 07:39:22,804 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 37 transitions, 184 flow
[2023-11-19 07:39:22,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 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 07:39:22,805 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:39:22,805 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:39:22,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-19 07:39:22,805 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] ===
[2023-11-19 07:39:22,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:22,806 INFO L85 PathProgramCache]: Analyzing trace with hash 215685116, now seen corresponding path program 1 times
[2023-11-19 07:39:22,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:39:22,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208085142]
[2023-11-19 07:39:22,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:39:22,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:39:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:39:23,422 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 07:39:23,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:39:23,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208085142]
[2023-11-19 07:39:23,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208085142] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:39:23,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:39:23,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-19 07:39:23,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869589312]
[2023-11-19 07:39:23,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:39:23,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:39:23,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:39:23,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:39:23,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:39:23,449 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 289
[2023-11-19 07:39:23,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 37 transitions, 184 flow. Second operand has 6 states, 6 states have (on average 128.16666666666666) internal successors, (769), 6 states have internal predecessors, (769), 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 07:39:23,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:39:23,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 289
[2023-11-19 07:39:23,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand