./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_20-callback_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_615d143c-5e74-4bec-ab4d-c54a740c77eb/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_615d143c-5e74-4bec-ab4d-c54a740c77eb/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_615d143c-5e74-4bec-ab4d-c54a740c77eb/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_615d143c-5e74-4bec-ab4d-c54a740c77eb/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_20-callback_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_615d143c-5e74-4bec-ab4d-c54a740c77eb/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_615d143c-5e74-4bec-ab4d-c54a740c77eb/bin/uautomizer-verify-LYvppIcaGC --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 4e91816f101a416d37c086dd7185cfb4e2bfa63eb286e4a418cb94db27cf2f6f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:32:34,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:32:34,200 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_615d143c-5e74-4bec-ab4d-c54a740c77eb/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-23 18:32:34,206 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:32:34,206 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:32:34,243 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:32:34,244 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:32:34,244 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:32:34,245 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:32:34,245 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:32:34,245 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:32:34,245 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:32:34,246 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:32:34,246 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:32:34,246 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:32:34,246 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:32:34,246 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:32:34,246 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:32:34,247 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:32:34,247 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:32:34,247 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:32:34,247 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:32:34,247 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:32:34,247 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:32:34,247 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 18:32:34,247 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 18:32:34,248 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:32:34,248 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:32:34,248 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:32:34,248 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:32:34,248 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:32:34,248 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:32:34,248 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:32:34,248 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:32:34,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:32:34,249 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:32:34,249 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:32:34,249 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:32:34,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:32:34,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:32:34,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:32:34,250 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:32:34,250 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:32:34,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:32:34,250 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:32:34,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:32:34,250 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:32:34,250 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:32:34,250 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:32:34,250 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:32:34,251 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_615d143c-5e74-4bec-ab4d-c54a740c77eb/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> 4e91816f101a416d37c086dd7185cfb4e2bfa63eb286e4a418cb94db27cf2f6f [2024-11-23 18:32:34,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:32:34,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:32:34,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:32:34,603 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:32:34,604 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:32:34,605 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_615d143c-5e74-4bec-ab4d-c54a740c77eb/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/28-race_reach_20-callback_racefree.i [2024-11-23 18:32:37,732 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_615d143c-5e74-4bec-ab4d-c54a740c77eb/bin/uautomizer-verify-LYvppIcaGC/data/033209202/31c2a22bcc6640ceb60f8055db4e3fb8/FLAG73fb43d7f [2024-11-23 18:32:38,115 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:32:38,116 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_615d143c-5e74-4bec-ab4d-c54a740c77eb/sv-benchmarks/c/goblint-regression/28-race_reach_20-callback_racefree.i [2024-11-23 18:32:38,136 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_615d143c-5e74-4bec-ab4d-c54a740c77eb/bin/uautomizer-verify-LYvppIcaGC/data/033209202/31c2a22bcc6640ceb60f8055db4e3fb8/FLAG73fb43d7f [2024-11-23 18:32:38,153 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_615d143c-5e74-4bec-ab4d-c54a740c77eb/bin/uautomizer-verify-LYvppIcaGC/data/033209202/31c2a22bcc6640ceb60f8055db4e3fb8 [2024-11-23 18:32:38,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:32:38,157 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:32:38,159 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:32:38,159 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:32:38,165 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:32:38,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:32:38" (1/1) ... [2024-11-23 18:32:38,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@607e9bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:38, skipping insertion in model container [2024-11-23 18:32:38,167 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:32:38" (1/1) ... [2024-11-23 18:32:38,205 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:32:38,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:32:38,769 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:32:38,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:32:38,867 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:32:38,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:38 WrapperNode [2024-11-23 18:32:38,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:32:38,868 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:32:38,869 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:32:38,869 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:32:38,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:38" (1/1) ... [2024-11-23 18:32:38,888 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:38" (1/1) ... [2024-11-23 18:32:38,914 INFO L138 Inliner]: procedures = 174, calls = 39, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 200 [2024-11-23 18:32:38,915 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:32:38,915 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:32:38,915 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:32:38,915 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:32:38,925 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:38" (1/1) ... [2024-11-23 18:32:38,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:38" (1/1) ... [2024-11-23 18:32:38,928 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:38" (1/1) ... [2024-11-23 18:32:38,944 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 5, 5, 2]. 36 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-11-23 18:32:38,944 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:38" (1/1) ... [2024-11-23 18:32:38,944 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:38" (1/1) ... [2024-11-23 18:32:38,953 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:38" (1/1) ... [2024-11-23 18:32:38,954 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:38" (1/1) ... [2024-11-23 18:32:38,958 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:38" (1/1) ... [2024-11-23 18:32:38,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:38" (1/1) ... [2024-11-23 18:32:38,962 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:38" (1/1) ... [2024-11-23 18:32:38,965 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:32:38,966 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:32:38,966 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:32:38,966 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:32:38,967 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:38" (1/1) ... [2024-11-23 18:32:38,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:32:38,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_615d143c-5e74-4bec-ab4d-c54a740c77eb/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:32:39,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_615d143c-5e74-4bec-ab4d-c54a740c77eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:32:39,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_615d143c-5e74-4bec-ab4d-c54a740c77eb/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:32:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 18:32:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 18:32:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 18:32:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 18:32:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 18:32:39,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 18:32:39,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 18:32:39,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 18:32:39,039 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-23 18:32:39,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:32:39,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 18:32:39,040 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-23 18:32:39,040 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-23 18:32:39,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 18:32:39,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:32:39,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 18:32:39,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 18:32:39,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 18:32:39,043 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-23 18:32:39,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:32:39,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:32:39,044 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 18:32:39,272 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:32:39,275 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:32:39,681 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 18:32:39,681 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:32:40,346 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:32:40,346 INFO L312 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-23 18:32:40,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:32:40 BoogieIcfgContainer [2024-11-23 18:32:40,347 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:32:40,350 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:32:40,350 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:32:40,356 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:32:40,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:32:38" (1/3) ... [2024-11-23 18:32:40,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30669bec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:32:40, skipping insertion in model container [2024-11-23 18:32:40,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:38" (2/3) ... [2024-11-23 18:32:40,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30669bec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:32:40, skipping insertion in model container [2024-11-23 18:32:40,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:32:40" (3/3) ... [2024-11-23 18:32:40,359 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_20-callback_racefree.i [2024-11-23 18:32:40,378 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:32:40,380 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_20-callback_racefree.i that has 2 procedures, 58 locations, 1 initial locations, 7 loop locations, and 10 error locations. [2024-11-23 18:32:40,380 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 18:32:40,450 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-23 18:32:40,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 69 transitions, 145 flow [2024-11-23 18:32:40,587 INFO L124 PetriNetUnfolderBase]: 19/112 cut-off events. [2024-11-23 18:32:40,594 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-23 18:32:40,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 112 events. 19/112 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 389 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 60. Up to 6 conditions per place. [2024-11-23 18:32:40,602 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 69 transitions, 145 flow [2024-11-23 18:32:40,610 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 68 transitions, 143 flow [2024-11-23 18:32:40,625 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:32:40,643 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;@5eccf445, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:32:40,644 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-23 18:32:40,660 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 18:32:40,661 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-23 18:32:40,661 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 18:32:40,661 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:32:40,662 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-23 18:32:40,662 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-23 18:32:40,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:40,668 INFO L85 PathProgramCache]: Analyzing trace with hash 526552552, now seen corresponding path program 1 times [2024-11-23 18:32:40,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:40,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264662016] [2024-11-23 18:32:40,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:40,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:41,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:32:41,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:41,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264662016] [2024-11-23 18:32:41,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264662016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:41,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:41,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:32:41,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391639557] [2024-11-23 18:32:41,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:41,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:32:41,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:41,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:32:41,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:32:41,290 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 69 [2024-11-23 18:32:41,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 68 transitions, 143 flow. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:32:41,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:32:41,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 69 [2024-11-23 18:32:41,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:32:41,693 INFO L124 PetriNetUnfolderBase]: 134/422 cut-off events. [2024-11-23 18:32:41,693 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-23 18:32:41,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 712 conditions, 422 events. 134/422 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2098 event pairs, 0 based on Foata normal form. 56/428 useless extension candidates. Maximal degree in co-relation 687. Up to 263 conditions per place. [2024-11-23 18:32:41,702 INFO L140 encePairwiseOnDemand]: 55/69 looper letters, 40 selfloop transitions, 3 changer transitions 1/71 dead transitions. [2024-11-23 18:32:41,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 71 transitions, 237 flow [2024-11-23 18:32:41,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:32:41,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 18:32:41,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 167 transitions. [2024-11-23 18:32:41,723 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.605072463768116 [2024-11-23 18:32:41,725 INFO L175 Difference]: Start difference. First operand has 61 places, 68 transitions, 143 flow. Second operand 4 states and 167 transitions. [2024-11-23 18:32:41,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 71 transitions, 237 flow [2024-11-23 18:32:41,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 71 transitions, 237 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-23 18:32:41,744 INFO L231 Difference]: Finished difference. Result has 63 places, 57 transitions, 131 flow [2024-11-23 18:32:41,748 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=63, PETRI_TRANSITIONS=57} [2024-11-23 18:32:41,754 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 2 predicate places. [2024-11-23 18:32:41,754 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 57 transitions, 131 flow [2024-11-23 18:32:41,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:32:41,755 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:32:41,755 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:41,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 18:32:41,756 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-23 18:32:41,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:41,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1307055699, now seen corresponding path program 1 times [2024-11-23 18:32:41,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:41,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736047342] [2024-11-23 18:32:41,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:41,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:32:41,845 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:32:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:32:41,923 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 18:32:41,923 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 18:32:41,928 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-23 18:32:41,929 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2024-11-23 18:32:41,932 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2024-11-23 18:32:41,932 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2024-11-23 18:32:41,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2024-11-23 18:32:41,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2024-11-23 18:32:41,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining) [2024-11-23 18:32:41,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2024-11-23 18:32:41,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2024-11-23 18:32:41,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2024-11-23 18:32:41,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2024-11-23 18:32:41,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:32:41,934 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-23 18:32:41,938 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-23 18:32:41,938 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-23 18:32:41,984 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-23 18:32:41,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 83 transitions, 182 flow [2024-11-23 18:32:42,040 INFO L124 PetriNetUnfolderBase]: 31/188 cut-off events. [2024-11-23 18:32:42,040 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-11-23 18:32:42,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 188 events. 31/188 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 800 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 120. Up to 9 conditions per place. [2024-11-23 18:32:42,044 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 83 transitions, 182 flow [2024-11-23 18:32:42,046 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 83 transitions, 182 flow [2024-11-23 18:32:42,047 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:32:42,048 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;@5eccf445, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:32:42,048 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-23 18:32:42,056 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 18:32:42,056 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-23 18:32:42,056 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 18:32:42,056 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:32:42,056 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-23 18:32:42,057 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-23 18:32:42,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:42,057 INFO L85 PathProgramCache]: Analyzing trace with hash 605771399, now seen corresponding path program 1 times [2024-11-23 18:32:42,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:42,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349332723] [2024-11-23 18:32:42,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:42,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:42,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:32:42,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:42,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349332723] [2024-11-23 18:32:42,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349332723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:42,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:42,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:32:42,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131340070] [2024-11-23 18:32:42,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:42,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:32:42,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:42,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:32:42,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:32:42,296 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 83 [2024-11-23 18:32:42,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 83 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:32:42,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:32:42,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 83 [2024-11-23 18:32:42,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:32:43,334 INFO L124 PetriNetUnfolderBase]: 2160/4561 cut-off events. [2024-11-23 18:32:43,335 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-11-23 18:32:43,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8079 conditions, 4561 events. 2160/4561 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 33839 event pairs, 948 based on Foata normal form. 565/4661 useless extension candidates. Maximal degree in co-relation 1072. Up to 3454 conditions per place. [2024-11-23 18:32:43,374 INFO L140 encePairwiseOnDemand]: 67/83 looper letters, 53 selfloop transitions, 3 changer transitions 1/88 dead transitions. [2024-11-23 18:32:43,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 88 transitions, 306 flow [2024-11-23 18:32:43,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:32:43,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 18:32:43,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 198 transitions. [2024-11-23 18:32:43,377 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5963855421686747 [2024-11-23 18:32:43,379 INFO L175 Difference]: Start difference. First operand has 74 places, 83 transitions, 182 flow. Second operand 4 states and 198 transitions. [2024-11-23 18:32:43,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 88 transitions, 306 flow [2024-11-23 18:32:43,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 88 transitions, 306 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-23 18:32:43,382 INFO L231 Difference]: Finished difference. Result has 79 places, 74 transitions, 184 flow [2024-11-23 18:32:43,382 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=79, PETRI_TRANSITIONS=74} [2024-11-23 18:32:43,385 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 5 predicate places. [2024-11-23 18:32:43,386 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 74 transitions, 184 flow [2024-11-23 18:32:43,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:32:43,386 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:32:43,386 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:43,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:32:43,387 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-23 18:32:43,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:43,387 INFO L85 PathProgramCache]: Analyzing trace with hash -3431907, now seen corresponding path program 1 times [2024-11-23 18:32:43,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:43,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382684593] [2024-11-23 18:32:43,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:43,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:43,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:32:43,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:43,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382684593] [2024-11-23 18:32:43,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382684593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:43,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:43,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:32:43,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146503590] [2024-11-23 18:32:43,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:43,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:32:43,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:43,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:32:43,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:32:43,677 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 83 [2024-11-23 18:32:43,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 74 transitions, 184 flow. Second operand has 6 states, 6 states have (on average 32.5) internal successors, (195), 6 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:32:43,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:32:43,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 83 [2024-11-23 18:32:43,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:32:44,560 INFO L124 PetriNetUnfolderBase]: 1980/4331 cut-off events. [2024-11-23 18:32:44,560 INFO L125 PetriNetUnfolderBase]: For 189/189 co-relation queries the response was YES. [2024-11-23 18:32:44,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7791 conditions, 4331 events. 1980/4331 cut-off events. For 189/189 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 33163 event pairs, 84 based on Foata normal form. 49/4022 useless extension candidates. Maximal degree in co-relation 1129. Up to 2512 conditions per place. [2024-11-23 18:32:44,590 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 73 selfloop transitions, 6 changer transitions 0/110 dead transitions. [2024-11-23 18:32:44,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 110 transitions, 412 flow [2024-11-23 18:32:44,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:32:44,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 18:32:44,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 266 transitions. [2024-11-23 18:32:44,594 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5341365461847389 [2024-11-23 18:32:44,594 INFO L175 Difference]: Start difference. First operand has 79 places, 74 transitions, 184 flow. Second operand 6 states and 266 transitions. [2024-11-23 18:32:44,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 110 transitions, 412 flow [2024-11-23 18:32:44,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 110 transitions, 410 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 18:32:44,602 INFO L231 Difference]: Finished difference. Result has 81 places, 73 transitions, 190 flow [2024-11-23 18:32:44,602 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=190, PETRI_PLACES=81, PETRI_TRANSITIONS=73} [2024-11-23 18:32:44,603 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 7 predicate places. [2024-11-23 18:32:44,603 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 73 transitions, 190 flow [2024-11-23 18:32:44,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.5) internal successors, (195), 6 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:32:44,604 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:32:44,604 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-23 18:32:44,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 18:32:44,604 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-23 18:32:44,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:44,605 INFO L85 PathProgramCache]: Analyzing trace with hash -106388486, now seen corresponding path program 1 times [2024-11-23 18:32:44,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:44,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635725805] [2024-11-23 18:32:44,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:44,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:44,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:32:44,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:44,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635725805] [2024-11-23 18:32:44,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635725805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:44,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:44,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:32:44,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875383668] [2024-11-23 18:32:44,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:44,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:32:44,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:44,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:32:44,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:32:44,718 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 83 [2024-11-23 18:32:44,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 73 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:32:44,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:32:44,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 83 [2024-11-23 18:32:44,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:32:45,394 INFO L124 PetriNetUnfolderBase]: 1896/4151 cut-off events. [2024-11-23 18:32:45,394 INFO L125 PetriNetUnfolderBase]: For 436/436 co-relation queries the response was YES. [2024-11-23 18:32:45,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7591 conditions, 4151 events. 1896/4151 cut-off events. For 436/436 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 31316 event pairs, 84 based on Foata normal form. 49/3901 useless extension candidates. Maximal degree in co-relation 4630. Up to 2658 conditions per place. [2024-11-23 18:32:45,420 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 60 selfloop transitions, 6 changer transitions 0/97 dead transitions. [2024-11-23 18:32:45,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 97 transitions, 368 flow [2024-11-23 18:32:45,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:32:45,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 18:32:45,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 189 transitions. [2024-11-23 18:32:45,425 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5692771084337349 [2024-11-23 18:32:45,425 INFO L175 Difference]: Start difference. First operand has 81 places, 73 transitions, 190 flow. Second operand 4 states and 189 transitions. [2024-11-23 18:32:45,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 97 transitions, 368 flow [2024-11-23 18:32:45,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 97 transitions, 352 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-23 18:32:45,438 INFO L231 Difference]: Finished difference. Result has 79 places, 73 transitions, 190 flow [2024-11-23 18:32:45,439 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=79, PETRI_TRANSITIONS=73} [2024-11-23 18:32:45,439 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 5 predicate places. [2024-11-23 18:32:45,440 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 73 transitions, 190 flow [2024-11-23 18:32:45,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:32:45,441 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:32:45,441 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:45,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 18:32:45,441 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-23 18:32:45,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:45,446 INFO L85 PathProgramCache]: Analyzing trace with hash -108184965, now seen corresponding path program 1 times [2024-11-23 18:32:45,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:45,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468101460] [2024-11-23 18:32:45,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:45,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:45,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:32:45,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:45,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468101460] [2024-11-23 18:32:45,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468101460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:45,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:45,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:32:45,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399194706] [2024-11-23 18:32:45,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:45,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:32:45,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:45,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:32:45,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:32:45,598 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 83 [2024-11-23 18:32:45,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 73 transitions, 190 flow. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:32:45,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:32:45,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 83 [2024-11-23 18:32:45,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:32:46,185 INFO L124 PetriNetUnfolderBase]: 1791/3850 cut-off events. [2024-11-23 18:32:46,185 INFO L125 PetriNetUnfolderBase]: For 568/568 co-relation queries the response was YES. [2024-11-23 18:32:46,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7080 conditions, 3850 events. 1791/3850 cut-off events. For 568/568 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 28195 event pairs, 73 based on Foata normal form. 7/3583 useless extension candidates. Maximal degree in co-relation 1792. Up to 2575 conditions per place. [2024-11-23 18:32:46,215 INFO L140 encePairwiseOnDemand]: 79/83 looper letters, 63 selfloop transitions, 4 changer transitions 0/98 dead transitions. [2024-11-23 18:32:46,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 98 transitions, 377 flow [2024-11-23 18:32:46,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:32:46,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-23 18:32:46,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 223 transitions. [2024-11-23 18:32:46,217 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5373493975903615 [2024-11-23 18:32:46,217 INFO L175 Difference]: Start difference. First operand has 79 places, 73 transitions, 190 flow. Second operand 5 states and 223 transitions. [2024-11-23 18:32:46,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 98 transitions, 377 flow [2024-11-23 18:32:46,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 98 transitions, 368 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-23 18:32:46,223 INFO L231 Difference]: Finished difference. Result has 82 places, 73 transitions, 194 flow [2024-11-23 18:32:46,223 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=82, PETRI_TRANSITIONS=73} [2024-11-23 18:32:46,224 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 8 predicate places. [2024-11-23 18:32:46,224 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 73 transitions, 194 flow [2024-11-23 18:32:46,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:32:46,225 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:32:46,226 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2024-11-23 18:32:46,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 18:32:46,227 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-23 18:32:46,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:46,228 INFO L85 PathProgramCache]: Analyzing trace with hash 839900157, now seen corresponding path program 1 times [2024-11-23 18:32:46,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:46,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163023649] [2024-11-23 18:32:46,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:46,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:32:46,307 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:32:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:32:46,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 18:32:46,346 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 18:32:46,346 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-23 18:32:46,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2024-11-23 18:32:46,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2024-11-23 18:32:46,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2024-11-23 18:32:46,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2024-11-23 18:32:46,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2024-11-23 18:32:46,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining) [2024-11-23 18:32:46,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2024-11-23 18:32:46,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2024-11-23 18:32:46,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2024-11-23 18:32:46,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2024-11-23 18:32:46,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 18:32:46,347 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-23 18:32:46,348 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-23 18:32:46,348 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-23 18:32:46,395 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-23 18:32:46,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 97 transitions, 221 flow [2024-11-23 18:32:46,437 INFO L124 PetriNetUnfolderBase]: 46/283 cut-off events. [2024-11-23 18:32:46,437 INFO L125 PetriNetUnfolderBase]: For 19/21 co-relation queries the response was YES. [2024-11-23 18:32:46,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 283 events. 46/283 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1324 event pairs, 1 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 203. Up to 12 conditions per place. [2024-11-23 18:32:46,439 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 97 transitions, 221 flow [2024-11-23 18:32:46,441 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 97 transitions, 221 flow [2024-11-23 18:32:46,443 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:32:46,445 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;@5eccf445, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:32:46,446 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-23 18:32:46,451 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 18:32:46,451 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-23 18:32:46,452 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 18:32:46,452 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:32:46,453 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-23 18:32:46,453 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-23 18:32:46,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:46,454 INFO L85 PathProgramCache]: Analyzing trace with hash 698350516, now seen corresponding path program 1 times [2024-11-23 18:32:46,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:46,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709795605] [2024-11-23 18:32:46,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:46,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:46,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:32:46,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:46,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709795605] [2024-11-23 18:32:46,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709795605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:46,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:46,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:32:46,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438214133] [2024-11-23 18:32:46,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:46,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:32:46,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:46,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:32:46,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:32:46,614 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 97 [2024-11-23 18:32:46,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 97 transitions, 221 flow. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:32:46,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:32:46,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 97 [2024-11-23 18:32:46,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:32:51,587 INFO L124 PetriNetUnfolderBase]: 23689/40289 cut-off events. [2024-11-23 18:32:51,587 INFO L125 PetriNetUnfolderBase]: For 711/711 co-relation queries the response was YES. [2024-11-23 18:32:51,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74067 conditions, 40289 events. 23689/40289 cut-off events. For 711/711 co-relation queries the response was YES. Maximal size of possible extension queue 1118. Compared 341383 event pairs, 17439 based on Foata normal form. 5361/42263 useless extension candidates. Maximal degree in co-relation 12666. Up to 33341 conditions per place. [2024-11-23 18:32:51,832 INFO L140 encePairwiseOnDemand]: 79/97 looper letters, 61 selfloop transitions, 3 changer transitions 1/100 dead transitions. [2024-11-23 18:32:51,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 100 transitions, 357 flow [2024-11-23 18:32:51,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:32:51,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 18:32:51,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 224 transitions. [2024-11-23 18:32:51,838 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5773195876288659 [2024-11-23 18:32:51,838 INFO L175 Difference]: Start difference. First operand has 87 places, 97 transitions, 221 flow. Second operand 4 states and 224 transitions. [2024-11-23 18:32:51,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 100 transitions, 357 flow [2024-11-23 18:32:51,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 100 transitions, 357 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-23 18:32:51,845 INFO L231 Difference]: Finished difference. Result has 92 places, 86 transitions, 219 flow [2024-11-23 18:32:51,846 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=92, PETRI_TRANSITIONS=86} [2024-11-23 18:32:51,846 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 5 predicate places. [2024-11-23 18:32:51,847 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 86 transitions, 219 flow [2024-11-23 18:32:51,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:32:51,847 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:32:51,847 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:51,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 18:32:51,847 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-23 18:32:51,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:51,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1363880387, now seen corresponding path program 1 times [2024-11-23 18:32:51,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:51,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842125592] [2024-11-23 18:32:51,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:51,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:52,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:32:52,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:52,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842125592] [2024-11-23 18:32:52,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842125592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:52,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:52,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:32:52,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311381112] [2024-11-23 18:32:52,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:52,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:32:52,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:52,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:32:52,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:32:52,046 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 97 [2024-11-23 18:32:52,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 86 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 36.5) internal successors, (219), 6 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:32:52,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:32:52,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 97 [2024-11-23 18:32:52,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:32:55,320 INFO L124 PetriNetUnfolderBase]: 21571/38727 cut-off events. [2024-11-23 18:32:55,320 INFO L125 PetriNetUnfolderBase]: For 2010/2010 co-relation queries the response was YES. [2024-11-23 18:32:55,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71090 conditions, 38727 events. 21571/38727 cut-off events. For 2010/2010 co-relation queries the response was YES. Maximal size of possible extension queue 1140. Compared 351970 event pairs, 1456 based on Foata normal form. 392/36402 useless extension candidates. Maximal degree in co-relation 10302. Up to 23839 conditions per place. [2024-11-23 18:32:55,565 INFO L140 encePairwiseOnDemand]: 92/97 looper letters, 93 selfloop transitions, 6 changer transitions 0/134 dead transitions. [2024-11-23 18:32:55,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 134 transitions, 511 flow [2024-11-23 18:32:55,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:32:55,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 18:32:55,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 310 transitions. [2024-11-23 18:32:55,568 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5326460481099656 [2024-11-23 18:32:55,568 INFO L175 Difference]: Start difference. First operand has 92 places, 86 transitions, 219 flow. Second operand 6 states and 310 transitions. [2024-11-23 18:32:55,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 134 transitions, 511 flow [2024-11-23 18:32:55,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 134 transitions, 509 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 18:32:55,577 INFO L231 Difference]: Finished difference. Result has 94 places, 85 transitions, 225 flow [2024-11-23 18:32:55,577 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=225, PETRI_PLACES=94, PETRI_TRANSITIONS=85} [2024-11-23 18:32:55,578 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 7 predicate places. [2024-11-23 18:32:55,579 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 85 transitions, 225 flow [2024-11-23 18:32:55,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.5) internal successors, (219), 6 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:32:55,579 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:32:55,579 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-23 18:32:55,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 18:32:55,580 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-23 18:32:55,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:55,580 INFO L85 PathProgramCache]: Analyzing trace with hash 669381691, now seen corresponding path program 1 times [2024-11-23 18:32:55,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:55,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497066999] [2024-11-23 18:32:55,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:55,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:55,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:32:55,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:55,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497066999] [2024-11-23 18:32:55,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497066999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:55,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:55,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:32:55,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532879265] [2024-11-23 18:32:55,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:55,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:32:55,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:55,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:32:55,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:32:55,922 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 97 [2024-11-23 18:32:55,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 85 transitions, 225 flow. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:32:55,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:32:55,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 97 [2024-11-23 18:32:55,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:32:58,724 INFO L124 PetriNetUnfolderBase]: 20605/37037 cut-off events. [2024-11-23 18:32:58,724 INFO L125 PetriNetUnfolderBase]: For 3277/3277 co-relation queries the response was YES. [2024-11-23 18:32:58,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68841 conditions, 37037 events. 20605/37037 cut-off events. For 3277/3277 co-relation queries the response was YES. Maximal size of possible extension queue 1100. Compared 335227 event pairs, 1162 based on Foata normal form. 392/35235 useless extension candidates. Maximal degree in co-relation 11497. Up to 25210 conditions per place. [2024-11-23 18:32:58,905 INFO L140 encePairwiseOnDemand]: 92/97 looper letters, 80 selfloop transitions, 6 changer transitions 0/121 dead transitions. [2024-11-23 18:32:58,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 121 transitions, 467 flow [2024-11-23 18:32:58,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:32:58,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 18:32:58,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 225 transitions. [2024-11-23 18:32:58,907 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5798969072164949 [2024-11-23 18:32:58,907 INFO L175 Difference]: Start difference. First operand has 94 places, 85 transitions, 225 flow. Second operand 4 states and 225 transitions. [2024-11-23 18:32:58,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 121 transitions, 467 flow [2024-11-23 18:32:58,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 121 transitions, 451 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-23 18:32:58,921 INFO L231 Difference]: Finished difference. Result has 92 places, 85 transitions, 225 flow [2024-11-23 18:32:58,921 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=225, PETRI_PLACES=92, PETRI_TRANSITIONS=85} [2024-11-23 18:32:58,924 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 5 predicate places. [2024-11-23 18:32:58,925 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 85 transitions, 225 flow [2024-11-23 18:32:58,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:32:58,925 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:32:58,925 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:32:58,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 18:32:58,925 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-23 18:32:58,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:32:58,926 INFO L85 PathProgramCache]: Analyzing trace with hash 667227720, now seen corresponding path program 1 times [2024-11-23 18:32:58,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:32:58,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341953537] [2024-11-23 18:32:58,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:32:58,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:32:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:32:59,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:32:59,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:32:59,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341953537] [2024-11-23 18:32:59,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341953537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:32:59,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:32:59,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:32:59,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754190802] [2024-11-23 18:32:59,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:32:59,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:32:59,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:32:59,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:32:59,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:32:59,117 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 97 [2024-11-23 18:32:59,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 85 transitions, 225 flow. Second operand has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:32:59,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:32:59,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 97 [2024-11-23 18:32:59,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:33:02,169 INFO L124 PetriNetUnfolderBase]: 20500/36328 cut-off events. [2024-11-23 18:33:02,169 INFO L125 PetriNetUnfolderBase]: For 4776/4776 co-relation queries the response was YES. [2024-11-23 18:33:02,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67922 conditions, 36328 events. 20500/36328 cut-off events. For 4776/4776 co-relation queries the response was YES. Maximal size of possible extension queue 1043. Compared 319017 event pairs, 5936 based on Foata normal form. 7/34178 useless extension candidates. Maximal degree in co-relation 7532. Up to 28508 conditions per place. [2024-11-23 18:33:02,322 INFO L140 encePairwiseOnDemand]: 93/97 looper letters, 73 selfloop transitions, 4 changer transitions 0/112 dead transitions. [2024-11-23 18:33:02,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 112 transitions, 445 flow [2024-11-23 18:33:02,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:33:02,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-23 18:33:02,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 253 transitions. [2024-11-23 18:33:02,325 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5216494845360825 [2024-11-23 18:33:02,325 INFO L175 Difference]: Start difference. First operand has 92 places, 85 transitions, 225 flow. Second operand 5 states and 253 transitions. [2024-11-23 18:33:02,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 112 transitions, 445 flow [2024-11-23 18:33:02,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 112 transitions, 433 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-23 18:33:02,334 INFO L231 Difference]: Finished difference. Result has 95 places, 86 transitions, 237 flow [2024-11-23 18:33:02,335 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=237, PETRI_PLACES=95, PETRI_TRANSITIONS=86} [2024-11-23 18:33:02,335 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 8 predicate places. [2024-11-23 18:33:02,335 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 86 transitions, 237 flow [2024-11-23 18:33:02,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:33:02,336 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:33:02,336 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:33:02,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 18:33:02,336 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-23 18:33:02,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:02,337 INFO L85 PathProgramCache]: Analyzing trace with hash -343661039, now seen corresponding path program 1 times [2024-11-23 18:33:02,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:02,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642956926] [2024-11-23 18:33:02,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:02,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:02,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:33:02,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:02,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642956926] [2024-11-23 18:33:02,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642956926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:02,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:02,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:33:02,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618855945] [2024-11-23 18:33:02,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:02,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:33:02,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:02,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:33:02,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:33:02,461 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 97 [2024-11-23 18:33:02,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 86 transitions, 237 flow. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:33:02,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:33:02,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 97 [2024-11-23 18:33:02,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:33:07,435 INFO L124 PetriNetUnfolderBase]: 37308/64738 cut-off events. [2024-11-23 18:33:07,436 INFO L125 PetriNetUnfolderBase]: For 4487/4487 co-relation queries the response was YES. [2024-11-23 18:33:07,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119465 conditions, 64738 events. 37308/64738 cut-off events. For 4487/4487 co-relation queries the response was YES. Maximal size of possible extension queue 1821. Compared 603093 event pairs, 21578 based on Foata normal form. 392/61364 useless extension candidates. Maximal degree in co-relation 84041. Up to 31483 conditions per place. [2024-11-23 18:33:07,765 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 101 selfloop transitions, 3 changer transitions 0/138 dead transitions. [2024-11-23 18:33:07,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 138 transitions, 549 flow [2024-11-23 18:33:07,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:33:07,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 18:33:07,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 244 transitions. [2024-11-23 18:33:07,768 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6288659793814433 [2024-11-23 18:33:07,769 INFO L175 Difference]: Start difference. First operand has 95 places, 86 transitions, 237 flow. Second operand 4 states and 244 transitions. [2024-11-23 18:33:07,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 138 transitions, 549 flow [2024-11-23 18:33:07,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 138 transitions, 543 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-23 18:33:07,775 INFO L231 Difference]: Finished difference. Result has 97 places, 88 transitions, 255 flow [2024-11-23 18:33:07,776 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=255, PETRI_PLACES=97, PETRI_TRANSITIONS=88} [2024-11-23 18:33:07,777 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 10 predicate places. [2024-11-23 18:33:07,777 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 88 transitions, 255 flow [2024-11-23 18:33:07,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:33:07,777 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:33:07,777 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-23 18:33:07,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 18:33:07,777 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-23 18:33:07,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:07,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1742125486, now seen corresponding path program 1 times [2024-11-23 18:33:07,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:07,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057912046] [2024-11-23 18:33:07,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:07,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:33:07,830 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:33:07,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:33:07,868 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 18:33:07,869 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 18:33:07,869 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-23 18:33:07,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2024-11-23 18:33:07,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2024-11-23 18:33:07,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2024-11-23 18:33:07,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2024-11-23 18:33:07,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2024-11-23 18:33:07,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining) [2024-11-23 18:33:07,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2024-11-23 18:33:07,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2024-11-23 18:33:07,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2024-11-23 18:33:07,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2024-11-23 18:33:07,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 18:33:07,870 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-23 18:33:07,871 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-23 18:33:07,871 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-23 18:33:07,915 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-23 18:33:07,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 111 transitions, 262 flow [2024-11-23 18:33:07,949 INFO L124 PetriNetUnfolderBase]: 69/418 cut-off events. [2024-11-23 18:33:07,949 INFO L125 PetriNetUnfolderBase]: For 48/51 co-relation queries the response was YES. [2024-11-23 18:33:07,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 418 events. 69/418 cut-off events. For 48/51 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2067 event pairs, 6 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 311. Up to 32 conditions per place. [2024-11-23 18:33:07,952 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 111 transitions, 262 flow [2024-11-23 18:33:07,954 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 111 transitions, 262 flow [2024-11-23 18:33:07,959 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:33:07,959 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;@5eccf445, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:33:07,959 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-23 18:33:07,962 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 18:33:07,962 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-11-23 18:33:07,962 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 18:33:07,962 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:33:07,962 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-23 18:33:07,962 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-23 18:33:07,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:33:07,962 INFO L85 PathProgramCache]: Analyzing trace with hash 804289903, now seen corresponding path program 1 times [2024-11-23 18:33:07,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:33:07,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339361492] [2024-11-23 18:33:07,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:33:07,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:33:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:33:08,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:33:08,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:33:08,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339361492] [2024-11-23 18:33:08,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339361492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:33:08,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:33:08,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:33:08,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473913856] [2024-11-23 18:33:08,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:33:08,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:33:08,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:33:08,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:33:08,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:33:08,050 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 111 [2024-11-23 18:33:08,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 111 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:33:08,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:33:08,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 111 [2024-11-23 18:33:08,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand