./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/spaghetti.wvr.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29eeae84-fa39-4a31-98f0-77bd16586789/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29eeae84-fa39-4a31-98f0-77bd16586789/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29eeae84-fa39-4a31-98f0-77bd16586789/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29eeae84-fa39-4a31-98f0-77bd16586789/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/spaghetti.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29eeae84-fa39-4a31-98f0-77bd16586789/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29eeae84-fa39-4a31-98f0-77bd16586789/bin/uautomizer-verify-LYvppIcaGC --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 846f3fa2b3520d0013071e1a40d4401eee84eafe31e419bacc7c09bfb8abae71
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 00:49:18,580 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-24 00:49:18,698 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29eeae84-fa39-4a31-98f0-77bd16586789/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-24 00:49:18,705 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 00:49:18,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 00:49:18,737 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 00:49:18,738 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 00:49:18,738 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 00:49:18,739 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 00:49:18,739 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-24 00:49:18,739 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 00:49:18,739 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 00:49:18,740 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 00:49:18,740 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-24 00:49:18,740 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-24 00:49:18,740 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 00:49:18,740 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-24 00:49:18,741 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-24 00:49:18,741 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-24 00:49:18,741 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-24 00:49:18,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-24 00:49:18,744 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-24 00:49:18,744 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 00:49:18,745 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-24 00:49:18,745 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-24 00:49:18,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-24 00:49:18,745 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 00:49:18,745 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-24 00:49:18,745 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 00:49:18,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 00:49:18,746 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:49:18,746 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 00:49:18,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:49:18,746 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 00:49:18,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-24 00:49:18,746 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:49:18,746 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-24 00:49:18,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:49:18,746 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 00:49:18,747 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 00:49:18,747 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-11-24 00:49:18,747 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-24 00:49:18,747 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-24 00:49:18,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 00:49:18,747 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 00:49:18,747 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 00:49:18,747 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 00:49:18,747 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 00:49:18,749 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
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_29eeae84-fa39-4a31-98f0-77bd16586789/bin/uautomizer-verify-LYvppIcaGC
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 -> 846f3fa2b3520d0013071e1a40d4401eee84eafe31e419bacc7c09bfb8abae71
[2024-11-24 00:49:19,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 00:49:19,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 00:49:19,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 00:49:19,150 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-24 00:49:19,150 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-24 00:49:19,152 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29eeae84-fa39-4a31-98f0-77bd16586789/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/weaver/spaghetti.wvr.c
[2024-11-24 00:49:22,214 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29eeae84-fa39-4a31-98f0-77bd16586789/bin/uautomizer-verify-LYvppIcaGC/data/fb6dfa9ea/53091b22d96047838754d93e57d95fd4/FLAG47ba2b7d0
[2024-11-24 00:49:22,553 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-24 00:49:22,554 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29eeae84-fa39-4a31-98f0-77bd16586789/sv-benchmarks/c/weaver/spaghetti.wvr.c
[2024-11-24 00:49:22,569 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29eeae84-fa39-4a31-98f0-77bd16586789/bin/uautomizer-verify-LYvppIcaGC/data/fb6dfa9ea/53091b22d96047838754d93e57d95fd4/FLAG47ba2b7d0
[2024-11-24 00:49:22,596 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29eeae84-fa39-4a31-98f0-77bd16586789/bin/uautomizer-verify-LYvppIcaGC/data/fb6dfa9ea/53091b22d96047838754d93e57d95fd4
[2024-11-24 00:49:22,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 00:49:22,603 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 00:49:22,605 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 00:49:22,606 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 00:49:22,612 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 00:49:22,613 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:49:22" (1/1) ...
[2024-11-24 00:49:22,616 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f0ae26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:22, skipping insertion in model container
[2024-11-24 00:49:22,617 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:49:22" (1/1) ...
[2024-11-24 00:49:22,638 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-24 00:49:22,872 WARN L250 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_29eeae84-fa39-4a31-98f0-77bd16586789/sv-benchmarks/c/weaver/spaghetti.wvr.c[2341,2354]
[2024-11-24 00:49:22,877 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:49:22,889 INFO L200 MainTranslator]: Completed pre-run
[2024-11-24 00:49:22,922 WARN L250 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_29eeae84-fa39-4a31-98f0-77bd16586789/sv-benchmarks/c/weaver/spaghetti.wvr.c[2341,2354]
[2024-11-24 00:49:22,929 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:49:22,951 INFO L204 MainTranslator]: Completed translation
[2024-11-24 00:49:22,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:22 WrapperNode
[2024-11-24 00:49:22,955 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 00:49:22,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 00:49:22,956 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 00:49:22,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 00:49:22,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:22" (1/1) ...
[2024-11-24 00:49:22,981 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:22" (1/1) ...
[2024-11-24 00:49:23,005 INFO L138 Inliner]: procedures = 20, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 57
[2024-11-24 00:49:23,006 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 00:49:23,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 00:49:23,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 00:49:23,009 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 00:49:23,019 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:22" (1/1) ...
[2024-11-24 00:49:23,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:22" (1/1) ...
[2024-11-24 00:49:23,022 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:22" (1/1) ...
[2024-11-24 00:49:23,046 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-24 00:49:23,046 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:22" (1/1) ...
[2024-11-24 00:49:23,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:22" (1/1) ...
[2024-11-24 00:49:23,054 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:22" (1/1) ...
[2024-11-24 00:49:23,058 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:22" (1/1) ...
[2024-11-24 00:49:23,063 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:22" (1/1) ...
[2024-11-24 00:49:23,064 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:22" (1/1) ...
[2024-11-24 00:49:23,065 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:22" (1/1) ...
[2024-11-24 00:49:23,067 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 00:49:23,068 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 00:49:23,069 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 00:49:23,069 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-24 00:49:23,070 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:22" (1/1) ...
[2024-11-24 00:49:23,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:49:23,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29eeae84-fa39-4a31-98f0-77bd16586789/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:49:23,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29eeae84-fa39-4a31-98f0-77bd16586789/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 00:49:23,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29eeae84-fa39-4a31-98f0-77bd16586789/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 00:49:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 00:49:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2024-11-24 00:49:23,133 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2024-11-24 00:49:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2024-11-24 00:49:23,133 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2024-11-24 00:49:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2024-11-24 00:49:23,133 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2024-11-24 00:49:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure thread4
[2024-11-24 00:49:23,134 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4
[2024-11-24 00:49:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-24 00:49:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 00:49:23,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 00:49:23,135 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-24 00:49:23,240 INFO L234 CfgBuilder]: Building ICFG
[2024-11-24 00:49:23,242 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 00:49:23,623 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-24 00:49:23,623 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-24 00:49:23,768 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 00:49:23,768 INFO L312 CfgBuilder]: Removed 4 assume(true) statements.
[2024-11-24 00:49:23,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:49:23 BoogieIcfgContainer
[2024-11-24 00:49:23,769 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 00:49:23,773 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 00:49:23,774 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 00:49:23,780 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-24 00:49:23,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:49:22" (1/3) ...
[2024-11-24 00:49:23,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122aca7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:49:23, skipping insertion in model container
[2024-11-24 00:49:23,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:49:22" (2/3) ...
[2024-11-24 00:49:23,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@122aca7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:49:23, skipping insertion in model container
[2024-11-24 00:49:23,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:49:23" (3/3) ...
[2024-11-24 00:49:23,784 INFO L128 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.c
[2024-11-24 00:49:23,804 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 00:49:23,806 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG spaghetti.wvr.c that has 5 procedures, 57 locations, 1 initial locations, 4 loop locations, and 1 error locations.
[2024-11-24 00:49:23,807 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-24 00:49:23,925 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2024-11-24 00:49:23,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 64 transitions, 156 flow
[2024-11-24 00:49:24,046 INFO L124 PetriNetUnfolderBase]: 8/60 cut-off events.
[2024-11-24 00:49:24,050 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES.
[2024-11-24 00:49:24,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 60 events. 8/60 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 137 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place.
[2024-11-24 00:49:24,059 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 64 transitions, 156 flow
[2024-11-24 00:49:24,063 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 59 transitions, 142 flow
[2024-11-24 00:49:24,076 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 00:49:24,095 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@19ca017, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 00:49:24,097 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2024-11-24 00:49:24,143 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-24 00:49:24,143 INFO L124 PetriNetUnfolderBase]: 8/58 cut-off events.
[2024-11-24 00:49:24,144 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES.
[2024-11-24 00:49:24,144 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:49:24,144 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:49:24,145 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-24 00:49:24,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:49:24,158 INFO L85 PathProgramCache]: Analyzing trace with hash 502716716, now seen corresponding path program 1 times
[2024-11-24 00:49:24,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:49:24,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382116148]
[2024-11-24 00:49:24,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:49:24,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:49:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:49:24,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:49:24,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:49:24,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382116148]
[2024-11-24 00:49:24,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382116148] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:49:24,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:49:24,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-24 00:49:24,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680484106]
[2024-11-24 00:49:24,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:49:24,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-24 00:49:24,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:49:24,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-24 00:49:24,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-24 00:49:24,509 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 64
[2024-11-24 00:49:24,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 59 transitions, 142 flow. Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:49:24,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:49:24,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 64
[2024-11-24 00:49:24,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:49:25,945 INFO L124 PetriNetUnfolderBase]: 5666/8719 cut-off events.
[2024-11-24 00:49:25,945 INFO L125 PetriNetUnfolderBase]: For 399/399 co-relation queries the response was YES.
[2024-11-24 00:49:25,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16516 conditions, 8719 events. 5666/8719 cut-off events. For 399/399 co-relation queries the response was YES. Maximal size of possible extension queue 469. Compared 54995 event pairs, 4408 based on Foata normal form. 0/7028 useless extension candidates. Maximal degree in co-relation 15167. Up to 7324 conditions per place.
[2024-11-24 00:49:26,050 INFO L140 encePairwiseOnDemand]: 60/64 looper letters, 32 selfloop transitions, 0 changer transitions 0/55 dead transitions.
[2024-11-24 00:49:26,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 55 transitions, 198 flow
[2024-11-24 00:49:26,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-24 00:49:26,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2024-11-24 00:49:26,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 90 transitions.
[2024-11-24 00:49:26,071 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.703125
[2024-11-24 00:49:26,073 INFO L175 Difference]: Start difference. First operand has 64 places, 59 transitions, 142 flow. Second operand 2 states and 90 transitions.
[2024-11-24 00:49:26,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 55 transitions, 198 flow
[2024-11-24 00:49:26,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 55 transitions, 182 flow, removed 0 selfloop flow, removed 8 redundant places.
[2024-11-24 00:49:26,102 INFO L231 Difference]: Finished difference. Result has 57 places, 55 transitions, 118 flow
[2024-11-24 00:49:26,106 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=118, PETRI_PLACES=57, PETRI_TRANSITIONS=55}
[2024-11-24 00:49:26,110 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -7 predicate places.
[2024-11-24 00:49:26,111 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 55 transitions, 118 flow
[2024-11-24 00:49:26,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:49:26,111 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:49:26,111 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:49:26,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-24 00:49:26,112 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-24 00:49:26,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:49:26,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1641403144, now seen corresponding path program 1 times
[2024-11-24 00:49:26,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:49:26,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788706106]
[2024-11-24 00:49:26,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:49:26,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:49:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:49:26,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:49:26,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:49:26,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788706106]
[2024-11-24 00:49:26,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788706106] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:49:26,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:49:26,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:49:26,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118758514]
[2024-11-24 00:49:26,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:49:26,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:49:26,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:49:26,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:49:26,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:49:26,908 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 64
[2024-11-24 00:49:26,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 55 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:49:26,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:49:26,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 64
[2024-11-24 00:49:26,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:49:30,466 INFO L124 PetriNetUnfolderBase]: 26781/36762 cut-off events.
[2024-11-24 00:49:30,467 INFO L125 PetriNetUnfolderBase]: For 266/266 co-relation queries the response was YES.
[2024-11-24 00:49:30,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72442 conditions, 36762 events. 26781/36762 cut-off events. For 266/266 co-relation queries the response was YES. Maximal size of possible extension queue 1436. Compared 224995 event pairs, 10227 based on Foata normal form. 1/32127 useless extension candidates. Maximal degree in co-relation 72439. Up to 17109 conditions per place.
[2024-11-24 00:49:30,650 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 80 selfloop transitions, 12 changer transitions 11/116 dead transitions.
[2024-11-24 00:49:30,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 116 transitions, 454 flow
[2024-11-24 00:49:30,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:49:30,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-24 00:49:30,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 172 transitions.
[2024-11-24 00:49:30,654 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.671875
[2024-11-24 00:49:30,654 INFO L175 Difference]: Start difference. First operand has 57 places, 55 transitions, 118 flow. Second operand 4 states and 172 transitions.
[2024-11-24 00:49:30,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 116 transitions, 454 flow
[2024-11-24 00:49:30,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 116 transitions, 454 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-24 00:49:30,659 INFO L231 Difference]: Finished difference. Result has 63 places, 65 transitions, 204 flow
[2024-11-24 00:49:30,659 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=63, PETRI_TRANSITIONS=65}
[2024-11-24 00:49:30,661 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -1 predicate places.
[2024-11-24 00:49:30,661 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 65 transitions, 204 flow
[2024-11-24 00:49:30,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:49:30,661 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-11-24 00:49:30,661 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:49:30,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-24 00:49:30,662 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] ===
[2024-11-24 00:49:30,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:49:30,664 INFO L85 PathProgramCache]: Analyzing trace with hash -221666104, now seen corresponding path program 2 times
[2024-11-24 00:49:30,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:49:30,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946972025]
[2024-11-24 00:49:30,665 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-24 00:49:30,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:49:30,782 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-24 00:49:30,782 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-24 00:49:30,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:49:30,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:49:30,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946972025]
[2024-11-24 00:49:30,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946972025] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:49:30,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:49:30,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:49:30,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072109196]
[2024-11-24 00:49:30,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:49:30,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:49:30,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:49:30,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:49:30,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:49:31,042 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 64
[2024-11-24 00:49:31,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 65 transitions, 204 flow. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:49:31,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-24 00:49:31,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 64
[2024-11-24 00:49:31,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-24 00:49:34,307 INFO L124 PetriNetUnfolderBase]: 31602/43874 cut-off events.
[2024-11-24 00:49:34,307 INFO L125 PetriNetUnfolderBase]: For 12901/12901 co-relation queries the response was YES.
[2024-11-24 00:49:34,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99326 conditions, 43874 events. 31602/43874 cut-off events. For 12901/12901 co-relation queries the response was YES. Maximal size of possible extension queue 1635. Compared 276003 event pairs, 12435 based on Foata normal form. 1/38382 useless extension candidates. Maximal degree in co-relation 99320. Up to 21618 conditions per place.
[2024-11-24 00:49:34,397 INFO L140 encePairwiseOnDemand]: 52/64 looper letters, 0 selfloop transitions, 0 changer transitions 130/130 dead transitions.
[2024-11-24 00:49:34,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 130 transitions, 644 flow
[2024-11-24 00:49:34,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-24 00:49:34,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-24 00:49:34,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 169 transitions.
[2024-11-24 00:49:34,400 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.66015625
[2024-11-24 00:49:34,400 INFO L175 Difference]: Start difference. First operand has 63 places, 65 transitions, 204 flow. Second operand 4 states and 169 transitions.
[2024-11-24 00:49:34,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 130 transitions, 644 flow
[2024-11-24 00:49:34,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 130 transitions, 644 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-24 00:49:34,433 INFO L231 Difference]: Finished difference. Result has 64 places, 0 transitions, 0 flow
[2024-11-24 00:49:34,433 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=64, PETRI_TRANSITIONS=0}
[2024-11-24 00:49:34,434 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 0 predicate places.
[2024-11-24 00:49:34,434 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 0 transitions, 0 flow
[2024-11-24 00:49:34,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:49:34,437 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining)
[2024-11-24 00:49:34,438 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining)
[2024-11-24 00:49:34,438 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining)
[2024-11-24 00:49:34,439 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining)
[2024-11-24 00:49:34,439 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining)
[2024-11-24 00:49:34,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-24 00:49:34,439 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1]
[2024-11-24 00:49:34,444 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-11-24 00:49:34,444 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-24 00:49:34,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:49:34 BasicIcfg
[2024-11-24 00:49:34,452 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-24 00:49:34,452 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-24 00:49:34,452 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-24 00:49:34,453 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-24 00:49:34,453 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:49:23" (3/4) ...
[2024-11-24 00:49:34,456 INFO L146 WitnessPrinter]: Generating witness for correct program
[2024-11-24 00:49:34,462 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1
[2024-11-24 00:49:34,462 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2
[2024-11-24 00:49:34,462 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3
[2024-11-24 00:49:34,463 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4
[2024-11-24 00:49:34,468 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges
[2024-11-24 00:49:34,470 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges
[2024-11-24 00:49:34,470 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2024-11-24 00:49:34,471 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2024-11-24 00:49:34,566 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29eeae84-fa39-4a31-98f0-77bd16586789/bin/uautomizer-verify-LYvppIcaGC/witness.graphml
[2024-11-24 00:49:34,566 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29eeae84-fa39-4a31-98f0-77bd16586789/bin/uautomizer-verify-LYvppIcaGC/witness.yml
[2024-11-24 00:49:34,567 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-24 00:49:34,569 INFO L158 Benchmark]: Toolchain (without parser) took 11965.33ms. Allocated memory was 117.4MB in the beginning and 998.2MB in the end (delta: 880.8MB). Free memory was 92.9MB in the beginning and 390.1MB in the end (delta: -297.2MB). Peak memory consumption was 579.0MB. Max. memory is 16.1GB.
[2024-11-24 00:49:34,569 INFO L158 Benchmark]: CDTParser took 1.87ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 73.5MB in the end (delta: 587.2kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 00:49:34,571 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.40ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 81.0MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 00:49:34,571 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.53ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 00:49:34,572 INFO L158 Benchmark]: Boogie Preprocessor took 60.54ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 78.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-24 00:49:34,572 INFO L158 Benchmark]: RCFGBuilder took 700.30ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 59.6MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-24 00:49:34,573 INFO L158 Benchmark]: TraceAbstraction took 10678.45ms. Allocated memory was 117.4MB in the beginning and 998.2MB in the end (delta: 880.8MB). Free memory was 59.0MB in the beginning and 394.3MB in the end (delta: -335.3MB). Peak memory consumption was 847.4MB. Max. memory is 16.1GB.
[2024-11-24 00:49:34,574 INFO L158 Benchmark]: Witness Printer took 114.47ms. Allocated memory is still 998.2MB. Free memory was 394.3MB in the beginning and 390.1MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-24 00:49:34,578 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.87ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 73.5MB in the end (delta: 587.2kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 350.40ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 81.0MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 50.53ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 60.54ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 78.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 700.30ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 59.6MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 10678.45ms. Allocated memory was 117.4MB in the beginning and 998.2MB in the end (delta: 880.8MB). Free memory was 59.0MB in the beginning and 394.3MB in the end (delta: -335.3MB). Peak memory consumption was 847.4MB. Max. memory is 16.1GB.
* Witness Printer took 114.47ms. Allocated memory is still 998.2MB. Free memory was 394.3MB in the beginning and 390.1MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 97]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 9 procedures, 97 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 131 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 384 IncrementalHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 31 mSDtfsCounter, 384 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred in iteration=2, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 212 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-11-24 00:49:34,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29eeae84-fa39-4a31-98f0-77bd16586789/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE