./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 11:47:25,114 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 11:47:25,169 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf
[2024-12-02 11:47:25,174 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 11:47:25,174 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 11:47:25,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 11:47:25,195 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 11:47:25,195 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 11:47:25,196 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 11:47:25,196 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 11:47:25,196 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 11:47:25,196 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 11:47:25,196 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 11:47:25,196 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 11:47:25,196 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 11:47:25,197 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 11:47:25,197 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 11:47:25,197 INFO L153 SettingsManager]: * sizeof long=4
[2024-12-02 11:47:25,197 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 11:47:25,197 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-12-02 11:47:25,197 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 11:47:25,197 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 11:47:25,197 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 11:47:25,197 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 11:47:25,197 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-12-02 11:47:25,197 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 11:47:25,197 INFO L153 SettingsManager]: * sizeof long double=12
[2024-12-02 11:47:25,197 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 11:47:25,198 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 11:47:25,198 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 11:47:25,198 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 11:47:25,198 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 11:47:25,198 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 11:47:25,198 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 11:47:25,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 11:47:25,198 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 11:47:25,198 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 11:47:25,198 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 11:47:25,198 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 11:47:25,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 11:47:25,199 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 11:47:25,199 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 11:47:25,199 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 11:47:25,199 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 11:47:25,199 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 11:47:25,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 11:47:25,199 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 11:47:25,199 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 11:47:25,199 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 11:47:25,199 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 11:47:25,199 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_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9
[2024-12-02 11:47:25,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 11:47:25,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 11:47:25,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 11:47:25,437 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 11:47:25,437 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 11:47:25,438 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i
[2024-12-02 11:47:28,018 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/data/7d68f0590/282b69791c9a47d6925f3e7c075e72c2/FLAG9abfb98bf
[2024-12-02 11:47:28,294 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 11:47:28,294 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i
[2024-12-02 11:47:28,308 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/data/7d68f0590/282b69791c9a47d6925f3e7c075e72c2/FLAG9abfb98bf
[2024-12-02 11:47:28,322 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/data/7d68f0590/282b69791c9a47d6925f3e7c075e72c2
[2024-12-02 11:47:28,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 11:47:28,325 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 11:47:28,326 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 11:47:28,326 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 11:47:28,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 11:47:28,330 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:47:28" (1/1) ...
[2024-12-02 11:47:28,331 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e4ee2ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:28, skipping insertion in model container
[2024-12-02 11:47:28,331 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:47:28" (1/1) ...
[2024-12-02 11:47:28,358 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 11:47:28,664 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 11:47:28,689 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 11:47:28,742 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 11:47:28,788 INFO L204 MainTranslator]: Completed translation
[2024-12-02 11:47:28,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:28 WrapperNode
[2024-12-02 11:47:28,788 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 11:47:28,789 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 11:47:28,789 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 11:47:28,789 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 11:47:28,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:28" (1/1) ...
[2024-12-02 11:47:28,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:28" (1/1) ...
[2024-12-02 11:47:28,827 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 282
[2024-12-02 11:47:28,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 11:47:28,827 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 11:47:28,827 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 11:47:28,828 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 11:47:28,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:28" (1/1) ...
[2024-12-02 11:47:28,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:28" (1/1) ...
[2024-12-02 11:47:28,841 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:28" (1/1) ...
[2024-12-02 11:47:28,856 INFO L175 MemorySlicer]: Split 79 memory accesses to 4 slices as follows [2, 2, 5, 70]. 89 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [2, 0, 5, 60]. The 5 writes are split as follows [0, 1, 0, 4].
[2024-12-02 11:47:28,857 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:28" (1/1) ...
[2024-12-02 11:47:28,857 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:28" (1/1) ...
[2024-12-02 11:47:28,867 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:28" (1/1) ...
[2024-12-02 11:47:28,868 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:28" (1/1) ...
[2024-12-02 11:47:28,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:28" (1/1) ...
[2024-12-02 11:47:28,874 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:28" (1/1) ...
[2024-12-02 11:47:28,875 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:28" (1/1) ...
[2024-12-02 11:47:28,878 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 11:47:28,879 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 11:47:28,879 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 11:47:28,879 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 11:47:28,880 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:28" (1/1) ...
[2024-12-02 11:47:28,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 11:47:28,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:47:28,908 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 11:47:28,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 11:47:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-12-02 11:47:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-12-02 11:47:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-12-02 11:47:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-12-02 11:47:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-12-02 11:47:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-12-02 11:47:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3
[2024-12-02 11:47:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-12-02 11:47:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-12-02 11:47:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-12-02 11:47:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2024-12-02 11:47:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-12-02 11:47:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 11:47:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun
[2024-12-02 11:47:28,936 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun
[2024-12-02 11:47:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 11:47:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-12-02 11:47:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-12-02 11:47:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-12-02 11:47:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 11:47:28,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 11:47:28,938 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-12-02 11:47:29,060 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 11:47:29,062 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 11:47:29,460 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-12-02 11:47:29,460 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 11:47:29,923 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 11:47:29,923 INFO L312 CfgBuilder]: Removed 13 assume(true) statements.
[2024-12-02 11:47:29,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:47:29 BoogieIcfgContainer
[2024-12-02 11:47:29,924 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 11:47:29,925 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 11:47:29,926 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 11:47:29,930 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 11:47:29,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:47:28" (1/3) ...
[2024-12-02 11:47:29,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@137ed69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:47:29, skipping insertion in model container
[2024-12-02 11:47:29,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:28" (2/3) ...
[2024-12-02 11:47:29,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@137ed69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:47:29, skipping insertion in model container
[2024-12-02 11:47:29,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:47:29" (3/3) ...
[2024-12-02 11:47:29,932 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_76-tricky_address3_racefree.i
[2024-12-02 11:47:29,948 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 11:47:29,950 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_76-tricky_address3_racefree.i that has 2 procedures, 91 locations, 1 initial locations, 13 loop locations, and 16 error locations.
[2024-12-02 11:47:29,950 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-12-02 11:47:30,005 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2024-12-02 11:47:30,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 115 transitions, 237 flow
[2024-12-02 11:47:30,101 INFO L124 PetriNetUnfolderBase]: 35/162 cut-off events.
[2024-12-02 11:47:30,103 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-12-02 11:47:30,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 162 events. 35/162 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 647 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 100. Up to 8 conditions per place.
[2024-12-02 11:47:30,108 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 115 transitions, 237 flow
[2024-12-02 11:47:30,113 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 114 transitions, 235 flow
[2024-12-02 11:47:30,121 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 11:47:30,134 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;@7f8e52b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 11:47:30,134 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations.
[2024-12-02 11:47:30,141 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-12-02 11:47:30,141 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events.
[2024-12-02 11:47:30,141 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-02 11:47:30,142 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:47:30,142 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-12-02 11:47:30,143 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] ===
[2024-12-02 11:47:30,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:47:30,148 INFO L85 PathProgramCache]: Analyzing trace with hash 780900, now seen corresponding path program 1 times
[2024-12-02 11:47:30,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:47:30,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484529362]
[2024-12-02 11:47:30,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:47:30,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:47:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:47:30,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:30,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:47:30,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484529362]
[2024-12-02 11:47:30,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484529362] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:47:30,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:47:30,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 11:47:30,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284043774]
[2024-12-02 11:47:30,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:47:30,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 11:47:30,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:47:30,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 11:47:30,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:47:30,474 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115
[2024-12-02 11:47:30,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 114 transitions, 235 flow. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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)
[2024-12-02 11:47:30,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:47:30,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115
[2024-12-02 11:47:30,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:47:30,932 INFO L124 PetriNetUnfolderBase]: 486/1501 cut-off events.
[2024-12-02 11:47:30,932 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-12-02 11:47:30,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2481 conditions, 1501 events. 486/1501 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 10106 event pairs, 440 based on Foata normal form. 278/1595 useless extension candidates. Maximal degree in co-relation 2390. Up to 973 conditions per place.
[2024-12-02 11:47:30,944 INFO L140 encePairwiseOnDemand]: 89/115 looper letters, 49 selfloop transitions, 3 changer transitions 0/96 dead transitions.
[2024-12-02 11:47:30,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 96 transitions, 303 flow
[2024-12-02 11:47:30,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 11:47:30,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-02 11:47:30,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions.
[2024-12-02 11:47:30,958 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5456521739130434
[2024-12-02 11:47:30,959 INFO L175 Difference]: Start difference. First operand has 94 places, 114 transitions, 235 flow. Second operand 4 states and 251 transitions.
[2024-12-02 11:47:30,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 96 transitions, 303 flow
[2024-12-02 11:47:30,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 96 transitions, 303 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-12-02 11:47:30,969 INFO L231 Difference]: Finished difference. Result has 99 places, 96 transitions, 219 flow
[2024-12-02 11:47:30,971 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=99, PETRI_TRANSITIONS=96}
[2024-12-02 11:47:30,975 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 5 predicate places.
[2024-12-02 11:47:30,975 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 96 transitions, 219 flow
[2024-12-02 11:47:30,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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)
[2024-12-02 11:47:30,975 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:47:30,975 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2024-12-02 11:47:30,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 11:47:30,976 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] ===
[2024-12-02 11:47:30,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:47:30,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1789757462, now seen corresponding path program 1 times
[2024-12-02 11:47:30,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:47:30,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688127318]
[2024-12-02 11:47:30,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:47:30,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:47:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:47:31,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:31,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:47:31,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688127318]
[2024-12-02 11:47:31,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688127318] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:47:31,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754098982]
[2024-12-02 11:47:31,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:47:31,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:47:31,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:47:31,138 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:47:31,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 11:47:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:47:31,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-12-02 11:47:31,235 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:47:31,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:31,281 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:47:31,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754098982] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:47:31,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 11:47:31,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6
[2024-12-02 11:47:31,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220954710]
[2024-12-02 11:47:31,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:47:31,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 11:47:31,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:47:31,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 11:47:31,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-12-02 11:47:31,292 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115
[2024-12-02 11:47:31,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 96 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 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)
[2024-12-02 11:47:31,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:47:31,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115
[2024-12-02 11:47:31,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:47:31,652 INFO L124 PetriNetUnfolderBase]: 486/1500 cut-off events.
[2024-12-02 11:47:31,652 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES.
[2024-12-02 11:47:31,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2491 conditions, 1500 events. 486/1500 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 10101 event pairs, 440 based on Foata normal form. 1/1317 useless extension candidates. Maximal degree in co-relation 2473. Up to 968 conditions per place.
[2024-12-02 11:47:31,661 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 45 selfloop transitions, 6 changer transitions 0/95 dead transitions.
[2024-12-02 11:47:31,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 95 transitions, 317 flow
[2024-12-02 11:47:31,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 11:47:31,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-12-02 11:47:31,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 316 transitions.
[2024-12-02 11:47:31,663 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4579710144927536
[2024-12-02 11:47:31,664 INFO L175 Difference]: Start difference. First operand has 99 places, 96 transitions, 219 flow. Second operand 6 states and 316 transitions.
[2024-12-02 11:47:31,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 95 transitions, 317 flow
[2024-12-02 11:47:31,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 95 transitions, 315 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-12-02 11:47:31,666 INFO L231 Difference]: Finished difference. Result has 102 places, 95 transitions, 225 flow
[2024-12-02 11:47:31,666 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=225, PETRI_PLACES=102, PETRI_TRANSITIONS=95}
[2024-12-02 11:47:31,667 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places.
[2024-12-02 11:47:31,667 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 95 transitions, 225 flow
[2024-12-02 11:47:31,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 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)
[2024-12-02 11:47:31,667 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:47:31,668 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1]
[2024-12-02 11:47:31,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 11:47:31,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:47:31,868 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] ===
[2024-12-02 11:47:31,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:47:31,869 INFO L85 PathProgramCache]: Analyzing trace with hash -352092718, now seen corresponding path program 1 times
[2024-12-02 11:47:31,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:47:31,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014984285]
[2024-12-02 11:47:31,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:47:31,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:47:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:47:31,931 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-12-02 11:47:31,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:47:31,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014984285]
[2024-12-02 11:47:31,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014984285] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:47:31,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:47:31,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 11:47:31,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140895829]
[2024-12-02 11:47:31,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:47:31,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 11:47:31,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:47:31,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 11:47:31,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:47:31,937 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115
[2024-12-02 11:47:31,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 95 transitions, 225 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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)
[2024-12-02 11:47:31,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:47:31,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115
[2024-12-02 11:47:31,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:47:32,194 INFO L124 PetriNetUnfolderBase]: 486/1499 cut-off events.
[2024-12-02 11:47:32,194 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES.
[2024-12-02 11:47:32,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2493 conditions, 1499 events. 486/1499 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 10093 event pairs, 440 based on Foata normal form. 1/1317 useless extension candidates. Maximal degree in co-relation 2469. Up to 971 conditions per place.
[2024-12-02 11:47:32,202 INFO L140 encePairwiseOnDemand]: 112/115 looper letters, 46 selfloop transitions, 4 changer transitions 0/94 dead transitions.
[2024-12-02 11:47:32,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 94 transitions, 321 flow
[2024-12-02 11:47:32,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 11:47:32,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-12-02 11:47:32,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions.
[2024-12-02 11:47:32,204 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5246376811594203
[2024-12-02 11:47:32,204 INFO L175 Difference]: Start difference. First operand has 102 places, 95 transitions, 225 flow. Second operand 3 states and 181 transitions.
[2024-12-02 11:47:32,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 94 transitions, 321 flow
[2024-12-02 11:47:32,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 94 transitions, 299 flow, removed 3 selfloop flow, removed 6 redundant places.
[2024-12-02 11:47:32,207 INFO L231 Difference]: Finished difference. Result has 97 places, 94 transitions, 207 flow
[2024-12-02 11:47:32,207 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=207, PETRI_PLACES=97, PETRI_TRANSITIONS=94}
[2024-12-02 11:47:32,208 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 3 predicate places.
[2024-12-02 11:47:32,208 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 94 transitions, 207 flow
[2024-12-02 11:47:32,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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)
[2024-12-02 11:47:32,208 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:47:32,208 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:47:32,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 11:47:32,209 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] ===
[2024-12-02 11:47:32,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:47:32,209 INFO L85 PathProgramCache]: Analyzing trace with hash 940085979, now seen corresponding path program 1 times
[2024-12-02 11:47:32,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:47:32,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222910515]
[2024-12-02 11:47:32,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:47:32,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:47:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:47:32,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:32,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:47:32,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222910515]
[2024-12-02 11:47:32,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222910515] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:47:32,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55429998]
[2024-12-02 11:47:32,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:47:32,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:47:32,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:47:32,307 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:47:32,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 11:47:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:47:32,403 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 11:47:32,404 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:47:32,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:32,424 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:47:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:32,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55429998] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:47:32,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:47:32,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9
[2024-12-02 11:47:32,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631662667]
[2024-12-02 11:47:32,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:47:32,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-12-02 11:47:32,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:47:32,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-12-02 11:47:32,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2024-12-02 11:47:32,467 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115
[2024-12-02 11:47:32,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 94 transitions, 207 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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)
[2024-12-02 11:47:32,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:47:32,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115
[2024-12-02 11:47:32,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:47:32,802 INFO L124 PetriNetUnfolderBase]: 486/1503 cut-off events.
[2024-12-02 11:47:32,802 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES.
[2024-12-02 11:47:32,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2496 conditions, 1503 events. 486/1503 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 10098 event pairs, 440 based on Foata normal form. 2/1323 useless extension candidates. Maximal degree in co-relation 2462. Up to 969 conditions per place.
[2024-12-02 11:47:32,809 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 46 selfloop transitions, 7 changer transitions 0/97 dead transitions.
[2024-12-02 11:47:32,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 97 transitions, 328 flow
[2024-12-02 11:47:32,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 11:47:32,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-12-02 11:47:32,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 363 transitions.
[2024-12-02 11:47:32,811 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4509316770186335
[2024-12-02 11:47:32,811 INFO L175 Difference]: Start difference. First operand has 97 places, 94 transitions, 207 flow. Second operand 7 states and 363 transitions.
[2024-12-02 11:47:32,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 97 transitions, 328 flow
[2024-12-02 11:47:32,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 97 transitions, 314 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-12-02 11:47:32,813 INFO L231 Difference]: Finished difference. Result has 103 places, 97 transitions, 233 flow
[2024-12-02 11:47:32,814 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=233, PETRI_PLACES=103, PETRI_TRANSITIONS=97}
[2024-12-02 11:47:32,814 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 9 predicate places.
[2024-12-02 11:47:32,814 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 97 transitions, 233 flow
[2024-12-02 11:47:32,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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)
[2024-12-02 11:47:32,815 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:47:32,815 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:47:32,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-02 11:47:33,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:47:33,015 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] ===
[2024-12-02 11:47:33,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:47:33,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1078283675, now seen corresponding path program 2 times
[2024-12-02 11:47:33,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:47:33,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213587086]
[2024-12-02 11:47:33,016 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 11:47:33,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:47:33,032 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-12-02 11:47:33,032 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 11:47:33,086 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-12-02 11:47:33,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:47:33,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213587086]
[2024-12-02 11:47:33,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213587086] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:47:33,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:47:33,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 11:47:33,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587323429]
[2024-12-02 11:47:33,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:47:33,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 11:47:33,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:47:33,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 11:47:33,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:47:33,096 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 115
[2024-12-02 11:47:33,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 97 transitions, 233 flow. Second operand has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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)
[2024-12-02 11:47:33,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:47:33,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 115
[2024-12-02 11:47:33,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:47:33,348 INFO L124 PetriNetUnfolderBase]: 483/1378 cut-off events.
[2024-12-02 11:47:33,348 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES.
[2024-12-02 11:47:33,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2378 conditions, 1378 events. 483/1378 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 9219 event pairs, 0 based on Foata normal form. 21/1266 useless extension candidates. Maximal degree in co-relation 2339. Up to 912 conditions per place.
[2024-12-02 11:47:33,353 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 92 selfloop transitions, 3 changer transitions 0/136 dead transitions.
[2024-12-02 11:47:33,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 136 transitions, 501 flow
[2024-12-02 11:47:33,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 11:47:33,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-02 11:47:33,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions.
[2024-12-02 11:47:33,355 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5760869565217391
[2024-12-02 11:47:33,355 INFO L175 Difference]: Start difference. First operand has 103 places, 97 transitions, 233 flow. Second operand 4 states and 265 transitions.
[2024-12-02 11:47:33,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 136 transitions, 501 flow
[2024-12-02 11:47:33,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 136 transitions, 497 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-12-02 11:47:33,359 INFO L231 Difference]: Finished difference. Result has 103 places, 95 transitions, 235 flow
[2024-12-02 11:47:33,359 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=103, PETRI_TRANSITIONS=95}
[2024-12-02 11:47:33,360 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 9 predicate places.
[2024-12-02 11:47:33,360 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 95 transitions, 235 flow
[2024-12-02 11:47:33,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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)
[2024-12-02 11:47:33,360 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:47:33,360 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:47:33,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-02 11:47:33,361 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] ===
[2024-12-02 11:47:33,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:47:33,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1144934204, now seen corresponding path program 1 times
[2024-12-02 11:47:33,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:47:33,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128204376]
[2024-12-02 11:47:33,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:47:33,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:47:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:47:33,445 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-12-02 11:47:33,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:47:33,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128204376]
[2024-12-02 11:47:33,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128204376] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:47:33,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:47:33,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 11:47:33,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088938991]
[2024-12-02 11:47:33,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:47:33,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 11:47:33,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:47:33,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 11:47:33,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:47:33,451 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115
[2024-12-02 11:47:33,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 95 transitions, 235 flow. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 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)
[2024-12-02 11:47:33,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:47:33,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115
[2024-12-02 11:47:33,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:47:33,759 INFO L124 PetriNetUnfolderBase]: 506/1511 cut-off events.
[2024-12-02 11:47:33,759 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES.
[2024-12-02 11:47:33,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2581 conditions, 1511 events. 506/1511 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 10128 event pairs, 378 based on Foata normal form. 23/1368 useless extension candidates. Maximal degree in co-relation 2542. Up to 875 conditions per place.
[2024-12-02 11:47:33,767 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 95 selfloop transitions, 3 changer transitions 0/138 dead transitions.
[2024-12-02 11:47:33,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 138 transitions, 525 flow
[2024-12-02 11:47:33,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 11:47:33,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-02 11:47:33,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 270 transitions.
[2024-12-02 11:47:33,768 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5869565217391305
[2024-12-02 11:47:33,768 INFO L175 Difference]: Start difference. First operand has 103 places, 95 transitions, 235 flow. Second operand 4 states and 270 transitions.
[2024-12-02 11:47:33,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 138 transitions, 525 flow
[2024-12-02 11:47:33,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 138 transitions, 515 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-12-02 11:47:33,772 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 233 flow
[2024-12-02 11:47:33,772 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=233, PETRI_PLACES=102, PETRI_TRANSITIONS=94}
[2024-12-02 11:47:33,772 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places.
[2024-12-02 11:47:33,772 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 233 flow
[2024-12-02 11:47:33,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 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)
[2024-12-02 11:47:33,773 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:47:33,773 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:47:33,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-12-02 11:47:33,773 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] ===
[2024-12-02 11:47:33,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:47:33,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1089389102, now seen corresponding path program 1 times
[2024-12-02 11:47:33,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:47:33,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481380270]
[2024-12-02 11:47:33,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:47:33,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:47:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:47:33,920 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:33,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:47:33,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481380270]
[2024-12-02 11:47:33,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481380270] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:47:33,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461922555]
[2024-12-02 11:47:33,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:47:33,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:47:33,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:47:33,922 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:47:33,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 11:47:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:47:34,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-12-02 11:47:34,023 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:47:34,058 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:34,058 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:47:34,157 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:34,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461922555] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:47:34,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:47:34,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17
[2024-12-02 11:47:34,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519781524]
[2024-12-02 11:47:34,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:47:34,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-12-02 11:47:34,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:47:34,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-12-02 11:47:34,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306
[2024-12-02 11:47:34,174 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115
[2024-12-02 11:47:34,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 233 flow. Second operand has 18 states, 18 states have (on average 45.22222222222222) internal successors, (814), 18 states have internal predecessors, (814), 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)
[2024-12-02 11:47:34,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:47:34,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115
[2024-12-02 11:47:34,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:47:34,479 INFO L124 PetriNetUnfolderBase]: 485/1486 cut-off events.
[2024-12-02 11:47:34,480 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES.
[2024-12-02 11:47:34,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2578 conditions, 1486 events. 485/1486 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 9854 event pairs, 440 based on Foata normal form. 4/1340 useless extension candidates. Maximal degree in co-relation 2503. Up to 946 conditions per place.
[2024-12-02 11:47:34,484 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 46 selfloop transitions, 15 changer transitions 0/102 dead transitions.
[2024-12-02 11:47:34,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 102 transitions, 403 flow
[2024-12-02 11:47:34,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-12-02 11:47:34,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states.
[2024-12-02 11:47:34,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 725 transitions.
[2024-12-02 11:47:34,488 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42028985507246375
[2024-12-02 11:47:34,489 INFO L175 Difference]: Start difference. First operand has 102 places, 94 transitions, 233 flow. Second operand 15 states and 725 transitions.
[2024-12-02 11:47:34,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 102 transitions, 403 flow
[2024-12-02 11:47:34,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 102 transitions, 397 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-12-02 11:47:34,491 INFO L231 Difference]: Finished difference. Result has 117 places, 102 transitions, 324 flow
[2024-12-02 11:47:34,492 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=324, PETRI_PLACES=117, PETRI_TRANSITIONS=102}
[2024-12-02 11:47:34,492 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 23 predicate places.
[2024-12-02 11:47:34,493 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 102 transitions, 324 flow
[2024-12-02 11:47:34,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 45.22222222222222) internal successors, (814), 18 states have internal predecessors, (814), 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)
[2024-12-02 11:47:34,494 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:47:34,494 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:47:34,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 11:47:34,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:47:34,694 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] ===
[2024-12-02 11:47:34,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:47:34,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1884720302, now seen corresponding path program 2 times
[2024-12-02 11:47:34,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:47:34,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564279638]
[2024-12-02 11:47:34,695 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 11:47:34,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:47:34,719 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 11:47:34,719 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 11:47:34,980 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:34,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:47:34,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564279638]
[2024-12-02 11:47:34,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564279638] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:47:34,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007232580]
[2024-12-02 11:47:34,981 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 11:47:34,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:47:34,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:47:34,983 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:47:34,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-02 11:47:35,085 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 11:47:35,085 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 11:47:35,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-12-02 11:47:35,089 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:47:35,148 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:35,148 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:47:35,311 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:35,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007232580] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:47:35,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:47:35,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22
[2024-12-02 11:47:35,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079313870]
[2024-12-02 11:47:35,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:47:35,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-12-02 11:47:35,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:47:35,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-12-02 11:47:35,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506
[2024-12-02 11:47:35,332 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115
[2024-12-02 11:47:35,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 102 transitions, 324 flow. Second operand has 23 states, 23 states have (on average 45.21739130434783) internal successors, (1040), 23 states have internal predecessors, (1040), 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)
[2024-12-02 11:47:35,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:47:35,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115
[2024-12-02 11:47:35,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:47:35,744 INFO L124 PetriNetUnfolderBase]: 485/1495 cut-off events.
[2024-12-02 11:47:35,744 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES.
[2024-12-02 11:47:35,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2573 conditions, 1495 events. 485/1495 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 9842 event pairs, 440 based on Foata normal form. 3/1348 useless extension candidates. Maximal degree in co-relation 2438. Up to 946 conditions per place.
[2024-12-02 11:47:35,751 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 46 selfloop transitions, 21 changer transitions 0/108 dead transitions.
[2024-12-02 11:47:35,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 108 transitions, 512 flow
[2024-12-02 11:47:35,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2024-12-02 11:47:35,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states.
[2024-12-02 11:47:35,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 994 transitions.
[2024-12-02 11:47:35,756 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4115942028985507
[2024-12-02 11:47:35,756 INFO L175 Difference]: Start difference. First operand has 117 places, 102 transitions, 324 flow. Second operand 21 states and 994 transitions.
[2024-12-02 11:47:35,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 108 transitions, 512 flow
[2024-12-02 11:47:35,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 108 transitions, 502 flow, removed 1 selfloop flow, removed 4 redundant places.
[2024-12-02 11:47:35,759 INFO L231 Difference]: Finished difference. Result has 136 places, 108 transitions, 425 flow
[2024-12-02 11:47:35,759 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=425, PETRI_PLACES=136, PETRI_TRANSITIONS=108}
[2024-12-02 11:47:35,760 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 42 predicate places.
[2024-12-02 11:47:35,760 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 108 transitions, 425 flow
[2024-12-02 11:47:35,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 45.21739130434783) internal successors, (1040), 23 states have internal predecessors, (1040), 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)
[2024-12-02 11:47:35,761 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:47:35,761 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:47:35,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-12-02 11:47:35,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:47:35,961 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] ===
[2024-12-02 11:47:35,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:47:35,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1549429372, now seen corresponding path program 3 times
[2024-12-02 11:47:35,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:47:35,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633710933]
[2024-12-02 11:47:35,962 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-12-02 11:47:35,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:47:36,035 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s)
[2024-12-02 11:47:36,035 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat
[2024-12-02 11:47:36,036 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 11:47:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 11:47:36,079 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-02 11:47:36,079 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 11:47:36,080 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining)
[2024-12-02 11:47:36,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining)
[2024-12-02 11:47:36,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining)
[2024-12-02 11:47:36,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining)
[2024-12-02 11:47:36,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining)
[2024-12-02 11:47:36,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining)
[2024-12-02 11:47:36,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining)
[2024-12-02 11:47:36,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining)
[2024-12-02 11:47:36,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining)
[2024-12-02 11:47:36,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining)
[2024-12-02 11:47:36,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining)
[2024-12-02 11:47:36,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining)
[2024-12-02 11:47:36,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining)
[2024-12-02 11:47:36,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining)
[2024-12-02 11:47:36,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 23 remaining)
[2024-12-02 11:47:36,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 23 remaining)
[2024-12-02 11:47:36,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 23 remaining)
[2024-12-02 11:47:36,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining)
[2024-12-02 11:47:36,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining)
[2024-12-02 11:47:36,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining)
[2024-12-02 11:47:36,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining)
[2024-12-02 11:47:36,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining)
[2024-12-02 11:47:36,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining)
[2024-12-02 11:47:36,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-12-02 11:47:36,085 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1]
[2024-12-02 11:47:36,088 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-12-02 11:47:36,088 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2024-12-02 11:47:36,118 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2024-12-02 11:47:36,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 165 transitions, 346 flow
[2024-12-02 11:47:36,144 INFO L124 PetriNetUnfolderBase]: 59/278 cut-off events.
[2024-12-02 11:47:36,144 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES.
[2024-12-02 11:47:36,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 278 events. 59/278 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1282 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 164. Up to 12 conditions per place.
[2024-12-02 11:47:36,146 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 165 transitions, 346 flow
[2024-12-02 11:47:36,149 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 165 transitions, 346 flow
[2024-12-02 11:47:36,149 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 11:47:36,150 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;@7f8e52b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 11:47:36,150 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations.
[2024-12-02 11:47:36,151 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-12-02 11:47:36,152 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events.
[2024-12-02 11:47:36,152 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-02 11:47:36,152 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:47:36,152 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-12-02 11:47:36,152 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2024-12-02 11:47:36,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:47:36,152 INFO L85 PathProgramCache]: Analyzing trace with hash 944745, now seen corresponding path program 1 times
[2024-12-02 11:47:36,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:47:36,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935593363]
[2024-12-02 11:47:36,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:47:36,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:47:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:47:36,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:36,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:47:36,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935593363]
[2024-12-02 11:47:36,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935593363] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:47:36,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:47:36,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 11:47:36,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599206007]
[2024-12-02 11:47:36,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:47:36,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 11:47:36,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:47:36,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 11:47:36,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:47:36,201 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165
[2024-12-02 11:47:36,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 165 transitions, 346 flow. Second operand has 4 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 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)
[2024-12-02 11:47:36,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:47:36,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165
[2024-12-02 11:47:36,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:47:39,256 INFO L124 PetriNetUnfolderBase]: 20921/44082 cut-off events.
[2024-12-02 11:47:39,256 INFO L125 PetriNetUnfolderBase]: For 124/124 co-relation queries the response was YES.
[2024-12-02 11:47:39,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75381 conditions, 44082 events. 20921/44082 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 449863 event pairs, 19440 based on Foata normal form. 9270/48624 useless extension candidates. Maximal degree in co-relation 59170. Up to 31185 conditions per place.
[2024-12-02 11:47:39,427 INFO L140 encePairwiseOnDemand]: 129/165 looper letters, 72 selfloop transitions, 3 changer transitions 0/137 dead transitions.
[2024-12-02 11:47:39,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 137 transitions, 440 flow
[2024-12-02 11:47:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 11:47:39,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-02 11:47:39,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 356 transitions.
[2024-12-02 11:47:39,428 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5393939393939394
[2024-12-02 11:47:39,428 INFO L175 Difference]: Start difference. First operand has 134 places, 165 transitions, 346 flow. Second operand 4 states and 356 transitions.
[2024-12-02 11:47:39,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 137 transitions, 440 flow
[2024-12-02 11:47:39,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 137 transitions, 440 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-12-02 11:47:39,431 INFO L231 Difference]: Finished difference. Result has 139 places, 137 transitions, 310 flow
[2024-12-02 11:47:39,431 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=310, PETRI_PLACES=139, PETRI_TRANSITIONS=137}
[2024-12-02 11:47:39,431 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 5 predicate places.
[2024-12-02 11:47:39,431 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 137 transitions, 310 flow
[2024-12-02 11:47:39,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 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)
[2024-12-02 11:47:39,432 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:47:39,432 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2024-12-02 11:47:39,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-12-02 11:47:39,432 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2024-12-02 11:47:39,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:47:39,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1918906890, now seen corresponding path program 1 times
[2024-12-02 11:47:39,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:47:39,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179230823]
[2024-12-02 11:47:39,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:47:39,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:47:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:47:39,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:39,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:47:39,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179230823]
[2024-12-02 11:47:39,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179230823] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:47:39,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740323704]
[2024-12-02 11:47:39,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:47:39,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:47:39,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:47:39,505 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:47:39,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-12-02 11:47:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:47:39,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-12-02 11:47:39,599 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:47:39,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:39,625 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 11:47:39,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740323704] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:47:39,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 11:47:39,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6
[2024-12-02 11:47:39,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288848849]
[2024-12-02 11:47:39,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:47:39,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 11:47:39,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:47:39,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 11:47:39,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-12-02 11:47:39,636 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165
[2024-12-02 11:47:39,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 137 transitions, 310 flow. Second operand has 6 states, 6 states have (on average 62.833333333333336) internal successors, (377), 6 states have internal predecessors, (377), 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)
[2024-12-02 11:47:39,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:47:39,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165
[2024-12-02 11:47:39,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:47:42,307 INFO L124 PetriNetUnfolderBase]: 20921/44081 cut-off events.
[2024-12-02 11:47:42,307 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES.
[2024-12-02 11:47:42,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75391 conditions, 44081 events. 20921/44081 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 449911 event pairs, 19440 based on Foata normal form. 1/39354 useless extension candidates. Maximal degree in co-relation 75372. Up to 31180 conditions per place.
[2024-12-02 11:47:42,485 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 68 selfloop transitions, 6 changer transitions 0/136 dead transitions.
[2024-12-02 11:47:42,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 136 transitions, 454 flow
[2024-12-02 11:47:42,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 11:47:42,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-12-02 11:47:42,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 447 transitions.
[2024-12-02 11:47:42,486 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45151515151515154
[2024-12-02 11:47:42,487 INFO L175 Difference]: Start difference. First operand has 139 places, 137 transitions, 310 flow. Second operand 6 states and 447 transitions.
[2024-12-02 11:47:42,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 136 transitions, 454 flow
[2024-12-02 11:47:42,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 136 transitions, 452 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-12-02 11:47:42,490 INFO L231 Difference]: Finished difference. Result has 142 places, 136 transitions, 316 flow
[2024-12-02 11:47:42,490 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=142, PETRI_TRANSITIONS=136}
[2024-12-02 11:47:42,490 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 8 predicate places.
[2024-12-02 11:47:42,491 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 136 transitions, 316 flow
[2024-12-02 11:47:42,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.833333333333336) internal successors, (377), 6 states have internal predecessors, (377), 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)
[2024-12-02 11:47:42,491 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:47:42,491 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1]
[2024-12-02 11:47:42,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-12-02 11:47:42,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2024-12-02 11:47:42,692 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2024-12-02 11:47:42,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:47:42,692 INFO L85 PathProgramCache]: Analyzing trace with hash 643429527, now seen corresponding path program 1 times
[2024-12-02 11:47:42,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:47:42,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214010366]
[2024-12-02 11:47:42,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:47:42,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:47:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:47:42,723 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-12-02 11:47:42,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:47:42,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214010366]
[2024-12-02 11:47:42,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214010366] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:47:42,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:47:42,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 11:47:42,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659106899]
[2024-12-02 11:47:42,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:47:42,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 11:47:42,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:47:42,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 11:47:42,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 11:47:42,729 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165
[2024-12-02 11:47:42,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 136 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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)
[2024-12-02 11:47:42,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:47:42,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165
[2024-12-02 11:47:42,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:47:45,543 INFO L124 PetriNetUnfolderBase]: 20921/44080 cut-off events.
[2024-12-02 11:47:45,543 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES.
[2024-12-02 11:47:45,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75393 conditions, 44080 events. 20921/44080 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 450056 event pairs, 19440 based on Foata normal form. 1/39354 useless extension candidates. Maximal degree in co-relation 75368. Up to 31183 conditions per place.
[2024-12-02 11:47:45,732 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 69 selfloop transitions, 4 changer transitions 0/135 dead transitions.
[2024-12-02 11:47:45,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 135 transitions, 458 flow
[2024-12-02 11:47:45,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 11:47:45,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-12-02 11:47:45,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions.
[2024-12-02 11:47:45,733 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5212121212121212
[2024-12-02 11:47:45,734 INFO L175 Difference]: Start difference. First operand has 142 places, 136 transitions, 316 flow. Second operand 3 states and 258 transitions.
[2024-12-02 11:47:45,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 135 transitions, 458 flow
[2024-12-02 11:47:45,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 135 transitions, 436 flow, removed 3 selfloop flow, removed 6 redundant places.
[2024-12-02 11:47:45,736 INFO L231 Difference]: Finished difference. Result has 137 places, 135 transitions, 298 flow
[2024-12-02 11:47:45,736 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=137, PETRI_TRANSITIONS=135}
[2024-12-02 11:47:45,737 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 3 predicate places.
[2024-12-02 11:47:45,737 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 135 transitions, 298 flow
[2024-12-02 11:47:45,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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)
[2024-12-02 11:47:45,737 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:47:45,737 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:47:45,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-12-02 11:47:45,737 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2024-12-02 11:47:45,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:47:45,738 INFO L85 PathProgramCache]: Analyzing trace with hash -140692176, now seen corresponding path program 1 times
[2024-12-02 11:47:45,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:47:45,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361291544]
[2024-12-02 11:47:45,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:47:45,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:47:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:47:45,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:45,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:47:45,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361291544]
[2024-12-02 11:47:45,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361291544] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:47:45,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262692130]
[2024-12-02 11:47:45,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:47:45,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:47:45,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:47:45,794 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:47:45,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-12-02 11:47:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:47:45,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-12-02 11:47:45,884 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:47:45,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:45,900 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:47:45,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:45,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262692130] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:47:45,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:47:45,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9
[2024-12-02 11:47:45,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498628755]
[2024-12-02 11:47:45,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:47:45,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-12-02 11:47:45,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:47:45,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-12-02 11:47:45,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2024-12-02 11:47:45,937 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165
[2024-12-02 11:47:45,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 135 transitions, 298 flow. Second operand has 10 states, 10 states have (on average 63.3) internal successors, (633), 10 states have internal predecessors, (633), 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)
[2024-12-02 11:47:45,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:47:45,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165
[2024-12-02 11:47:45,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:47:48,583 INFO L124 PetriNetUnfolderBase]: 20921/44084 cut-off events.
[2024-12-02 11:47:48,584 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES.
[2024-12-02 11:47:48,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75396 conditions, 44084 events. 20921/44084 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 450059 event pairs, 19440 based on Foata normal form. 2/39360 useless extension candidates. Maximal degree in co-relation 75361. Up to 31181 conditions per place.
[2024-12-02 11:47:48,721 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 69 selfloop transitions, 7 changer transitions 0/138 dead transitions.
[2024-12-02 11:47:48,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 138 transitions, 465 flow
[2024-12-02 11:47:48,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 11:47:48,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-12-02 11:47:48,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 512 transitions.
[2024-12-02 11:47:48,723 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4432900432900433
[2024-12-02 11:47:48,723 INFO L175 Difference]: Start difference. First operand has 137 places, 135 transitions, 298 flow. Second operand 7 states and 512 transitions.
[2024-12-02 11:47:48,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 138 transitions, 465 flow
[2024-12-02 11:47:48,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 138 transitions, 451 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-12-02 11:47:48,725 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 324 flow
[2024-12-02 11:47:48,725 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=324, PETRI_PLACES=143, PETRI_TRANSITIONS=138}
[2024-12-02 11:47:48,726 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 9 predicate places.
[2024-12-02 11:47:48,726 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 324 flow
[2024-12-02 11:47:48,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.3) internal successors, (633), 10 states have internal predecessors, (633), 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)
[2024-12-02 11:47:48,726 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:47:48,726 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:47:48,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-12-02 11:47:48,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2024-12-02 11:47:48,927 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2024-12-02 11:47:48,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:47:48,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1729608176, now seen corresponding path program 2 times
[2024-12-02 11:47:48,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:47:48,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22362164]
[2024-12-02 11:47:48,927 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 11:47:48,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:47:48,937 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-12-02 11:47:48,937 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 11:47:48,979 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-12-02 11:47:48,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:47:48,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22362164]
[2024-12-02 11:47:48,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22362164] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:47:48,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:47:48,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 11:47:48,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294789408]
[2024-12-02 11:47:48,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:47:48,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 11:47:48,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:47:48,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 11:47:48,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:47:48,986 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 165
[2024-12-02 11:47:48,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 324 flow. Second operand has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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)
[2024-12-02 11:47:48,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:47:48,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 165
[2024-12-02 11:47:48,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:47:52,101 INFO L124 PetriNetUnfolderBase]: 23016/46825 cut-off events.
[2024-12-02 11:47:52,101 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES.
[2024-12-02 11:47:52,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81493 conditions, 46825 events. 23016/46825 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 1226. Compared 469914 event pairs, 10580 based on Foata normal form. 21/41770 useless extension candidates. Maximal degree in co-relation 81453. Up to 34473 conditions per place.
[2024-12-02 11:47:52,262 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 119 selfloop transitions, 3 changer transitions 0/181 dead transitions.
[2024-12-02 11:47:52,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 181 transitions, 654 flow
[2024-12-02 11:47:52,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 11:47:52,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-02 11:47:52,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 364 transitions.
[2024-12-02 11:47:52,265 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5515151515151515
[2024-12-02 11:47:52,265 INFO L175 Difference]: Start difference. First operand has 143 places, 138 transitions, 324 flow. Second operand 4 states and 364 transitions.
[2024-12-02 11:47:52,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 181 transitions, 654 flow
[2024-12-02 11:47:52,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 181 transitions, 650 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-12-02 11:47:52,269 INFO L231 Difference]: Finished difference. Result has 146 places, 140 transitions, 344 flow
[2024-12-02 11:47:52,270 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=344, PETRI_PLACES=146, PETRI_TRANSITIONS=140}
[2024-12-02 11:47:52,270 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 12 predicate places.
[2024-12-02 11:47:52,270 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 140 transitions, 344 flow
[2024-12-02 11:47:52,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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)
[2024-12-02 11:47:52,271 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:47:52,271 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:47:52,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-12-02 11:47:52,271 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2024-12-02 11:47:52,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:47:52,271 INFO L85 PathProgramCache]: Analyzing trace with hash 332561, now seen corresponding path program 1 times
[2024-12-02 11:47:52,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:47:52,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863148743]
[2024-12-02 11:47:52,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:47:52,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:47:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:47:52,327 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-12-02 11:47:52,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:47:52,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863148743]
[2024-12-02 11:47:52,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863148743] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:47:52,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:47:52,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 11:47:52,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504761220]
[2024-12-02 11:47:52,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:47:52,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 11:47:52,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:47:52,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 11:47:52,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:47:52,332 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165
[2024-12-02 11:47:52,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 140 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 states have internal predecessors, (258), 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)
[2024-12-02 11:47:52,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:47:52,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165
[2024-12-02 11:47:52,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:47:55,058 INFO L124 PetriNetUnfolderBase]: 21407/40857 cut-off events.
[2024-12-02 11:47:55,058 INFO L125 PetriNetUnfolderBase]: For 1134/2062 co-relation queries the response was YES.
[2024-12-02 11:47:55,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74117 conditions, 40857 events. 21407/40857 cut-off events. For 1134/2062 co-relation queries the response was YES. Maximal size of possible extension queue 1118. Compared 395566 event pairs, 440 based on Foata normal form. 526/37645 useless extension candidates. Maximal degree in co-relation 74076. Up to 28198 conditions per place.
[2024-12-02 11:47:55,208 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 167 selfloop transitions, 3 changer transitions 0/231 dead transitions.
[2024-12-02 11:47:55,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 231 transitions, 896 flow
[2024-12-02 11:47:55,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 11:47:55,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-02 11:47:55,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 411 transitions.
[2024-12-02 11:47:55,209 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6227272727272727
[2024-12-02 11:47:55,209 INFO L175 Difference]: Start difference. First operand has 146 places, 140 transitions, 344 flow. Second operand 4 states and 411 transitions.
[2024-12-02 11:47:55,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 231 transitions, 896 flow
[2024-12-02 11:47:55,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 231 transitions, 892 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-12-02 11:47:55,214 INFO L231 Difference]: Finished difference. Result has 147 places, 139 transitions, 346 flow
[2024-12-02 11:47:55,214 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=346, PETRI_PLACES=147, PETRI_TRANSITIONS=139}
[2024-12-02 11:47:55,215 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 13 predicate places.
[2024-12-02 11:47:55,215 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 139 transitions, 346 flow
[2024-12-02 11:47:55,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 states have internal predecessors, (258), 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)
[2024-12-02 11:47:55,215 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:47:55,215 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:47:55,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-12-02 11:47:55,215 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2024-12-02 11:47:55,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:47:55,216 INFO L85 PathProgramCache]: Analyzing trace with hash 10310411, now seen corresponding path program 1 times
[2024-12-02 11:47:55,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:47:55,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477881937]
[2024-12-02 11:47:55,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:47:55,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:47:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:47:55,267 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-12-02 11:47:55,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:47:55,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477881937]
[2024-12-02 11:47:55,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477881937] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:47:55,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:47:55,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 11:47:55,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868002727]
[2024-12-02 11:47:55,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:47:55,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 11:47:55,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:47:55,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 11:47:55,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:47:55,273 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165
[2024-12-02 11:47:55,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 139 transitions, 346 flow. Second operand has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 states have internal predecessors, (258), 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)
[2024-12-02 11:47:55,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:47:55,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165
[2024-12-02 11:47:55,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:47:58,629 INFO L124 PetriNetUnfolderBase]: 20844/43253 cut-off events.
[2024-12-02 11:47:58,629 INFO L125 PetriNetUnfolderBase]: For 2073/2946 co-relation queries the response was YES.
[2024-12-02 11:47:58,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77022 conditions, 43253 events. 20844/43253 cut-off events. For 2073/2946 co-relation queries the response was YES. Maximal size of possible extension queue 1138. Compared 437256 event pairs, 15754 based on Foata normal form. 525/39532 useless extension candidates. Maximal degree in co-relation 76981. Up to 26761 conditions per place.
[2024-12-02 11:47:58,783 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 166 selfloop transitions, 3 changer transitions 0/230 dead transitions.
[2024-12-02 11:47:58,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 230 transitions, 894 flow
[2024-12-02 11:47:58,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 11:47:58,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-02 11:47:58,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 410 transitions.
[2024-12-02 11:47:58,784 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6212121212121212
[2024-12-02 11:47:58,784 INFO L175 Difference]: Start difference. First operand has 147 places, 139 transitions, 346 flow. Second operand 4 states and 410 transitions.
[2024-12-02 11:47:58,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 230 transitions, 894 flow
[2024-12-02 11:47:58,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 230 transitions, 888 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-12-02 11:47:58,789 INFO L231 Difference]: Finished difference. Result has 146 places, 138 transitions, 344 flow
[2024-12-02 11:47:58,790 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=344, PETRI_PLACES=146, PETRI_TRANSITIONS=138}
[2024-12-02 11:47:58,790 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 12 predicate places.
[2024-12-02 11:47:58,790 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 138 transitions, 344 flow
[2024-12-02 11:47:58,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 states have internal predecessors, (258), 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)
[2024-12-02 11:47:58,790 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:47:58,790 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:47:58,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-12-02 11:47:58,791 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2024-12-02 11:47:58,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:47:58,791 INFO L85 PathProgramCache]: Analyzing trace with hash 2143927057, now seen corresponding path program 1 times
[2024-12-02 11:47:58,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:47:58,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123787156]
[2024-12-02 11:47:58,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:47:58,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:47:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:47:58,890 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:58,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:47:58,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123787156]
[2024-12-02 11:47:58,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123787156] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:47:58,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751616600]
[2024-12-02 11:47:58,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:47:58,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:47:58,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:47:58,892 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:47:58,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-12-02 11:47:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:47:58,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-12-02 11:47:58,994 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:47:59,025 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:59,025 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:47:59,094 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:47:59,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751616600] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:47:59,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:47:59,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17
[2024-12-02 11:47:59,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485912511]
[2024-12-02 11:47:59,095 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:47:59,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-12-02 11:47:59,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:47:59,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-12-02 11:47:59,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306
[2024-12-02 11:47:59,109 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165
[2024-12-02 11:47:59,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 138 transitions, 344 flow. Second operand has 18 states, 18 states have (on average 63.27777777777778) internal successors, (1139), 18 states have internal predecessors, (1139), 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)
[2024-12-02 11:47:59,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:47:59,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165
[2024-12-02 11:47:59,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:48:02,145 INFO L124 PetriNetUnfolderBase]: 20919/44308 cut-off events.
[2024-12-02 11:48:02,146 INFO L125 PetriNetUnfolderBase]: For 2589/3453 co-relation queries the response was YES.
[2024-12-02 11:48:02,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78137 conditions, 44308 events. 20919/44308 cut-off events. For 2589/3453 co-relation queries the response was YES. Maximal size of possible extension queue 1170. Compared 453292 event pairs, 19440 based on Foata normal form. 22/39995 useless extension candidates. Maximal degree in co-relation 78060. Up to 31203 conditions per place.
[2024-12-02 11:48:02,311 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 70 selfloop transitions, 15 changer transitions 0/146 dead transitions.
[2024-12-02 11:48:02,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 146 transitions, 562 flow
[2024-12-02 11:48:02,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-12-02 11:48:02,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states.
[2024-12-02 11:48:02,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1018 transitions.
[2024-12-02 11:48:02,315 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4113131313131313
[2024-12-02 11:48:02,316 INFO L175 Difference]: Start difference. First operand has 146 places, 138 transitions, 344 flow. Second operand 15 states and 1018 transitions.
[2024-12-02 11:48:02,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 146 transitions, 562 flow
[2024-12-02 11:48:02,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 146 transitions, 556 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-12-02 11:48:02,319 INFO L231 Difference]: Finished difference. Result has 161 places, 146 transitions, 435 flow
[2024-12-02 11:48:02,319 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=435, PETRI_PLACES=161, PETRI_TRANSITIONS=146}
[2024-12-02 11:48:02,319 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 27 predicate places.
[2024-12-02 11:48:02,319 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 146 transitions, 435 flow
[2024-12-02 11:48:02,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 63.27777777777778) internal successors, (1139), 18 states have internal predecessors, (1139), 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)
[2024-12-02 11:48:02,320 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:48:02,320 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:48:02,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-12-02 11:48:02,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2024-12-02 11:48:02,520 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2024-12-02 11:48:02,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:48:02,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1665280337, now seen corresponding path program 2 times
[2024-12-02 11:48:02,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:48:02,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534698982]
[2024-12-02 11:48:02,521 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 11:48:02,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:48:02,531 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-12-02 11:48:02,531 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 11:48:02,575 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked.
[2024-12-02 11:48:02,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:48:02,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534698982]
[2024-12-02 11:48:02,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534698982] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:48:02,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:48:02,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 11:48:02,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263277832]
[2024-12-02 11:48:02,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:48:02,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 11:48:02,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:48:02,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 11:48:02,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-12-02 11:48:02,585 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 165
[2024-12-02 11:48:02,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 146 transitions, 435 flow. Second operand has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 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)
[2024-12-02 11:48:02,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:48:02,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 165
[2024-12-02 11:48:02,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:48:06,358 INFO L124 PetriNetUnfolderBase]: 21731/42337 cut-off events.
[2024-12-02 11:48:06,359 INFO L125 PetriNetUnfolderBase]: For 1878/1878 co-relation queries the response was YES.
[2024-12-02 11:48:06,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77181 conditions, 42337 events. 21731/42337 cut-off events. For 1878/1878 co-relation queries the response was YES. Maximal size of possible extension queue 1155. Compared 412623 event pairs, 819 based on Foata normal form. 441/39028 useless extension candidates. Maximal degree in co-relation 77080. Up to 26688 conditions per place.
[2024-12-02 11:48:06,517 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 203 selfloop transitions, 6 changer transitions 0/266 dead transitions.
[2024-12-02 11:48:06,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 266 transitions, 1091 flow
[2024-12-02 11:48:06,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-12-02 11:48:06,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-12-02 11:48:06,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 563 transitions.
[2024-12-02 11:48:06,518 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5686868686868687
[2024-12-02 11:48:06,518 INFO L175 Difference]: Start difference. First operand has 161 places, 146 transitions, 435 flow. Second operand 6 states and 563 transitions.
[2024-12-02 11:48:06,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 266 transitions, 1091 flow
[2024-12-02 11:48:06,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 266 transitions, 1081 flow, removed 1 selfloop flow, removed 4 redundant places.
[2024-12-02 11:48:06,522 INFO L231 Difference]: Finished difference. Result has 161 places, 145 transitions, 433 flow
[2024-12-02 11:48:06,522 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=433, PETRI_PLACES=161, PETRI_TRANSITIONS=145}
[2024-12-02 11:48:06,522 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 27 predicate places.
[2024-12-02 11:48:06,522 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 145 transitions, 433 flow
[2024-12-02 11:48:06,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.0) internal successors, (378), 6 states have internal predecessors, (378), 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)
[2024-12-02 11:48:06,522 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:48:06,522 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:48:06,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-12-02 11:48:06,523 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2024-12-02 11:48:06,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:48:06,523 INFO L85 PathProgramCache]: Analyzing trace with hash 84083903, now seen corresponding path program 1 times
[2024-12-02 11:48:06,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:48:06,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174610595]
[2024-12-02 11:48:06,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:48:06,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:48:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:48:06,574 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked.
[2024-12-02 11:48:06,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:48:06,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174610595]
[2024-12-02 11:48:06,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174610595] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:48:06,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:48:06,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 11:48:06,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987524161]
[2024-12-02 11:48:06,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:48:06,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 11:48:06,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:48:06,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 11:48:06,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:48:06,581 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 165
[2024-12-02 11:48:06,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 145 transitions, 433 flow. Second operand has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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)
[2024-12-02 11:48:06,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:48:06,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 165
[2024-12-02 11:48:06,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:48:09,450 INFO L124 PetriNetUnfolderBase]: 20893/40568 cut-off events.
[2024-12-02 11:48:09,450 INFO L125 PetriNetUnfolderBase]: For 3451/3451 co-relation queries the response was YES.
[2024-12-02 11:48:09,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75113 conditions, 40568 events. 20893/40568 cut-off events. For 3451/3451 co-relation queries the response was YES. Maximal size of possible extension queue 1116. Compared 391435 event pairs, 885 based on Foata normal form. 441/37820 useless extension candidates. Maximal degree in co-relation 75016. Up to 28010 conditions per place.
[2024-12-02 11:48:09,633 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 162 selfloop transitions, 6 changer transitions 0/225 dead transitions.
[2024-12-02 11:48:09,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 225 transitions, 927 flow
[2024-12-02 11:48:09,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 11:48:09,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-02 11:48:09,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 398 transitions.
[2024-12-02 11:48:09,635 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.603030303030303
[2024-12-02 11:48:09,635 INFO L175 Difference]: Start difference. First operand has 161 places, 145 transitions, 433 flow. Second operand 4 states and 398 transitions.
[2024-12-02 11:48:09,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 225 transitions, 927 flow
[2024-12-02 11:48:09,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 225 transitions, 911 flow, removed 3 selfloop flow, removed 5 redundant places.
[2024-12-02 11:48:09,649 INFO L231 Difference]: Finished difference. Result has 159 places, 145 transitions, 433 flow
[2024-12-02 11:48:09,649 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=433, PETRI_PLACES=159, PETRI_TRANSITIONS=145}
[2024-12-02 11:48:09,649 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 25 predicate places.
[2024-12-02 11:48:09,650 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 145 transitions, 433 flow
[2024-12-02 11:48:09,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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)
[2024-12-02 11:48:09,650 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:48:09,650 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:48:09,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-12-02 11:48:09,650 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2024-12-02 11:48:09,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:48:09,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1685473774, now seen corresponding path program 1 times
[2024-12-02 11:48:09,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:48:09,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540347972]
[2024-12-02 11:48:09,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:48:09,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:48:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:48:09,705 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked.
[2024-12-02 11:48:09,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:48:09,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540347972]
[2024-12-02 11:48:09,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540347972] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:48:09,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:48:09,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 11:48:09,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071149245]
[2024-12-02 11:48:09,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:48:09,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 11:48:09,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:48:09,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 11:48:09,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:48:09,711 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165
[2024-12-02 11:48:09,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 145 transitions, 433 flow. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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)
[2024-12-02 11:48:09,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:48:09,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165
[2024-12-02 11:48:09,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:48:12,981 INFO L124 PetriNetUnfolderBase]: 21385/41078 cut-off events.
[2024-12-02 11:48:12,981 INFO L125 PetriNetUnfolderBase]: For 4069/4069 co-relation queries the response was YES.
[2024-12-02 11:48:13,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75351 conditions, 41078 events. 21385/41078 cut-off events. For 4069/4069 co-relation queries the response was YES. Maximal size of possible extension queue 1129. Compared 392419 event pairs, 900 based on Foata normal form. 487/37790 useless extension candidates. Maximal degree in co-relation 75256. Up to 27362 conditions per place.
[2024-12-02 11:48:13,168 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 172 selfloop transitions, 3 changer transitions 0/232 dead transitions.
[2024-12-02 11:48:13,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 232 transitions, 981 flow
[2024-12-02 11:48:13,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-12-02 11:48:13,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-12-02 11:48:13,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 409 transitions.
[2024-12-02 11:48:13,170 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6196969696969697
[2024-12-02 11:48:13,170 INFO L175 Difference]: Start difference. First operand has 159 places, 145 transitions, 433 flow. Second operand 4 states and 409 transitions.
[2024-12-02 11:48:13,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 232 transitions, 981 flow
[2024-12-02 11:48:13,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 232 transitions, 969 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-12-02 11:48:13,176 INFO L231 Difference]: Finished difference. Result has 159 places, 144 transitions, 429 flow
[2024-12-02 11:48:13,176 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=429, PETRI_PLACES=159, PETRI_TRANSITIONS=144}
[2024-12-02 11:48:13,176 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 25 predicate places.
[2024-12-02 11:48:13,176 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 144 transitions, 429 flow
[2024-12-02 11:48:13,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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)
[2024-12-02 11:48:13,177 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:48:13,177 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 3, 2, 2, 2, 1, 1, 1, 1, 1]
[2024-12-02 11:48:13,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-12-02 11:48:13,177 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2024-12-02 11:48:13,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:48:13,178 INFO L85 PathProgramCache]: Analyzing trace with hash -799718675, now seen corresponding path program 1 times
[2024-12-02 11:48:13,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:48:13,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522273239]
[2024-12-02 11:48:13,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:48:13,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:48:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:48:13,414 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:48:13,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:48:13,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522273239]
[2024-12-02 11:48:13,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522273239] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 11:48:13,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121363943]
[2024-12-02 11:48:13,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:48:13,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:48:13,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 11:48:13,416 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 11:48:13,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-12-02 11:48:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:48:13,527 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-12-02 11:48:13,529 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 11:48:13,568 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:48:13,568 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 11:48:13,699 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:48:13,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121363943] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 11:48:13,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 11:48:13,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22
[2024-12-02 11:48:13,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492077319]
[2024-12-02 11:48:13,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 11:48:13,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-12-02 11:48:13,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:48:13,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-12-02 11:48:13,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506
[2024-12-02 11:48:13,715 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165
[2024-12-02 11:48:13,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 144 transitions, 429 flow. Second operand has 23 states, 23 states have (on average 63.26086956521739) internal successors, (1455), 23 states have internal predecessors, (1455), 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)
[2024-12-02 11:48:13,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:48:13,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165
[2024-12-02 11:48:13,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-12-02 11:48:17,198 INFO L124 PetriNetUnfolderBase]: 20961/44479 cut-off events.
[2024-12-02 11:48:17,198 INFO L125 PetriNetUnfolderBase]: For 3948/3948 co-relation queries the response was YES.
[2024-12-02 11:48:17,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78855 conditions, 44479 events. 20961/44479 cut-off events. For 3948/3948 co-relation queries the response was YES. Maximal size of possible extension queue 1171. Compared 456107 event pairs, 19501 based on Foata normal form. 3/40133 useless extension candidates. Maximal degree in co-relation 78723. Up to 31306 conditions per place.
[2024-12-02 11:48:17,426 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 71 selfloop transitions, 21 changer transitions 0/150 dead transitions.
[2024-12-02 11:48:17,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 150 transitions, 667 flow
[2024-12-02 11:48:17,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2024-12-02 11:48:17,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states.
[2024-12-02 11:48:17,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1395 transitions.
[2024-12-02 11:48:17,430 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4025974025974026
[2024-12-02 11:48:17,430 INFO L175 Difference]: Start difference. First operand has 159 places, 144 transitions, 429 flow. Second operand 21 states and 1395 transitions.
[2024-12-02 11:48:17,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 150 transitions, 667 flow
[2024-12-02 11:48:17,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 150 transitions, 661 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-12-02 11:48:17,437 INFO L231 Difference]: Finished difference. Result has 179 places, 150 transitions, 534 flow
[2024-12-02 11:48:17,437 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=534, PETRI_PLACES=179, PETRI_TRANSITIONS=150}
[2024-12-02 11:48:17,437 INFO L279 CegarLoopForPetriNet]: 134 programPoint places, 45 predicate places.
[2024-12-02 11:48:17,437 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 150 transitions, 534 flow
[2024-12-02 11:48:17,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 63.26086956521739) internal successors, (1455), 23 states have internal predecessors, (1455), 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)
[2024-12-02 11:48:17,438 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:48:17,438 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 3, 2, 2, 2, 1, 1, 1, 1, 1]
[2024-12-02 11:48:17,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-12-02 11:48:17,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b53d93-3967-4af7-a750-2a9cf62f01dd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 11:48:17,638 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] ===
[2024-12-02 11:48:17,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:48:17,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1070747034, now seen corresponding path program 2 times
[2024-12-02 11:48:17,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:48:17,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229621945]
[2024-12-02 11:48:17,639 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 11:48:17,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:48:17,669 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 11:48:17,670 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat
[2024-12-02 11:48:17,670 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 11:48:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 11:48:17,692 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-02 11:48:17,692 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 11:48:17,692 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining)
[2024-12-02 11:48:17,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining)
[2024-12-02 11:48:17,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining)
[2024-12-02 11:48:17,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining)
[2024-12-02 11:48:17,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining)
[2024-12-02 11:48:17,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining)
[2024-12-02 11:48:17,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining)
[2024-12-02 11:48:17,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining)
[2024-12-02 11:48:17,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining)
[2024-12-02 11:48:17,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining)
[2024-12-02 11:48:17,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining)
[2024-12-02 11:48:17,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining)
[2024-12-02 11:48:17,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining)
[2024-12-02 11:48:17,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining)
[2024-12-02 11:48:17,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining)
[2024-12-02 11:48:17,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining)
[2024-12-02 11:48:17,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining)
[2024-12-02 11:48:17,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining)
[2024-12-02 11:48:17,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining)
[2024-12-02 11:48:17,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining)
[2024-12-02 11:48:17,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining)
[2024-12-02 11:48:17,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining)
[2024-12-02 11:48:17,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining)
[2024-12-02 11:48:17,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining)
[2024-12-02 11:48:17,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining)
[2024-12-02 11:48:17,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining)
[2024-12-02 11:48:17,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining)
[2024-12-02 11:48:17,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining)
[2024-12-02 11:48:17,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining)
[2024-12-02 11:48:17,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-12-02 11:48:17,695 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 11:48:17,695 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-12-02 11:48:17,695 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2024-12-02 11:48:17,737 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2024-12-02 11:48:17,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 215 transitions, 457 flow
[2024-12-02 11:48:17,795 INFO L124 PetriNetUnfolderBase]: 86/413 cut-off events.
[2024-12-02 11:48:17,795 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES.
[2024-12-02 11:48:17,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 413 events. 86/413 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2063 event pairs, 1 based on Foata normal form. 0/267 useless extension candidates. Maximal degree in co-relation 287. Up to 16 conditions per place.
[2024-12-02 11:48:17,800 INFO L82 GeneralOperation]: Start removeDead. Operand has 174 places, 215 transitions, 457 flow
[2024-12-02 11:48:17,806 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 215 transitions, 457 flow
[2024-12-02 11:48:17,807 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 11:48:17,807 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;@7f8e52b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 11:48:17,807 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations.
[2024-12-02 11:48:17,810 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-12-02 11:48:17,810 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events.
[2024-12-02 11:48:17,810 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-12-02 11:48:17,810 INFO L198 CegarLoopForPetriNet]: Found error trace
[2024-12-02 11:48:17,810 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1]
[2024-12-02 11:48:17,810 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] ===
[2024-12-02 11:48:17,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 11:48:17,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1158240, now seen corresponding path program 1 times
[2024-12-02 11:48:17,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 11:48:17,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831317050]
[2024-12-02 11:48:17,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 11:48:17,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 11:48:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 11:48:17,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 11:48:17,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 11:48:17,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831317050]
[2024-12-02 11:48:17,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831317050] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 11:48:17,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 11:48:17,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 11:48:17,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785199413]
[2024-12-02 11:48:17,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 11:48:17,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 11:48:17,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 11:48:17,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 11:48:17,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 11:48:17,857 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 215
[2024-12-02 11:48:17,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 215 transitions, 457 flow. Second operand has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 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)
[2024-12-02 11:48:17,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-12-02 11:48:17,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 215
[2024-12-02 11:48:17,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand