./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422b4ae3-8b27-4c8f-a5f0-21844ff43ad6/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422b4ae3-8b27-4c8f-a5f0-21844ff43ad6/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422b4ae3-8b27-4c8f-a5f0-21844ff43ad6/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422b4ae3-8b27-4c8f-a5f0-21844ff43ad6/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422b4ae3-8b27-4c8f-a5f0-21844ff43ad6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422b4ae3-8b27-4c8f-a5f0-21844ff43ad6/bin/uautomizer-verify-BQ2R08f2Ya --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 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:00:59,158 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:00:59,226 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422b4ae3-8b27-4c8f-a5f0-21844ff43ad6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 01:00:59,231 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:00:59,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:00:59,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:00:59,257 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:00:59,258 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:00:59,258 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:00:59,259 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:00:59,260 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:00:59,260 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:00:59,261 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:00:59,261 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:00:59,262 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:00:59,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:00:59,263 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:00:59,263 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:00:59,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:00:59,264 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:00:59,265 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:00:59,267 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:00:59,268 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:00:59,268 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:00:59,268 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 01:00:59,269 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:00:59,269 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:00:59,269 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:00:59,270 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:00:59,270 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:00:59,271 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:00:59,271 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:00:59,271 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:00:59,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:00:59,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:00:59,272 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:00:59,272 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:00:59,272 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:00:59,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:00:59,273 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:00:59,273 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:00:59,273 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:00:59,274 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:00:59,274 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:00:59,274 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422b4ae3-8b27-4c8f-a5f0-21844ff43ad6/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422b4ae3-8b27-4c8f-a5f0-21844ff43ad6/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 [2023-11-29 01:00:59,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:00:59,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:00:59,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:00:59,504 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:00:59,505 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:00:59,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422b4ae3-8b27-4c8f-a5f0-21844ff43ad6/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2023-11-29 01:01:02,326 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:01:02,595 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:01:02,595 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422b4ae3-8b27-4c8f-a5f0-21844ff43ad6/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2023-11-29 01:01:02,625 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422b4ae3-8b27-4c8f-a5f0-21844ff43ad6/bin/uautomizer-verify-BQ2R08f2Ya/data/71ddb9ba4/671d124789144860a0bb22d366d6f8cb/FLAG42ae7c430 [2023-11-29 01:01:02,639 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422b4ae3-8b27-4c8f-a5f0-21844ff43ad6/bin/uautomizer-verify-BQ2R08f2Ya/data/71ddb9ba4/671d124789144860a0bb22d366d6f8cb [2023-11-29 01:01:02,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:01:02,643 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:01:02,644 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:01:02,644 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:01:02,649 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:01:02,649 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:01:02" (1/1) ... [2023-11-29 01:01:02,650 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61852b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:02, skipping insertion in model container [2023-11-29 01:01:02,650 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:01:02" (1/1) ... [2023-11-29 01:01:02,716 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:01:03,111 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:01:03,120 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:01:03,170 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:01:03,209 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:01:03,209 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:01:03,215 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:01:03,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:03 WrapperNode [2023-11-29 01:01:03,216 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:01:03,217 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:01:03,217 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:01:03,217 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:01:03,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:03" (1/1) ... [2023-11-29 01:01:03,242 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:03" (1/1) ... [2023-11-29 01:01:03,270 INFO L138 Inliner]: procedures = 248, calls = 64, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 162 [2023-11-29 01:01:03,270 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:01:03,271 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:01:03,271 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:01:03,271 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:01:03,283 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:03" (1/1) ... [2023-11-29 01:01:03,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:03" (1/1) ... [2023-11-29 01:01:03,288 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:03" (1/1) ... [2023-11-29 01:01:03,307 INFO L175 MemorySlicer]: Split 25 memory accesses to 5 slices as follows [2, 3, 3, 2, 15]. 60 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 1, 1, 0, 0]. The 12 writes are split as follows [0, 1, 1, 2, 8]. [2023-11-29 01:01:03,307 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:03" (1/1) ... [2023-11-29 01:01:03,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:03" (1/1) ... [2023-11-29 01:01:03,322 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:03" (1/1) ... [2023-11-29 01:01:03,325 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:03" (1/1) ... [2023-11-29 01:01:03,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:03" (1/1) ... [2023-11-29 01:01:03,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:03" (1/1) ... [2023-11-29 01:01:03,340 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:01:03,341 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:01:03,341 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:01:03,341 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:01:03,342 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:03" (1/1) ... [2023-11-29 01:01:03,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:01:03,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422b4ae3-8b27-4c8f-a5f0-21844ff43ad6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:01:03,371 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422b4ae3-8b27-4c8f-a5f0-21844ff43ad6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:01:03,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422b4ae3-8b27-4c8f-a5f0-21844ff43ad6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:01:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-29 01:01:03,404 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-29 01:01:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 01:01:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:01:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:01:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 01:01:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 01:01:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 01:01:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 01:01:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 01:01:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 01:01:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 01:01:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 01:01:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 01:01:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 01:01:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 01:01:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 01:01:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 01:01:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:01:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 01:01:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 01:01:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 01:01:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 01:01:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 01:01:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:01:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 01:01:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 01:01:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 01:01:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 01:01:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:01:03,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:01:03,411 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 01:01:03,665 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:01:03,667 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:01:03,929 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:01:04,092 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:01:04,092 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 01:01:04,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:01:04 BoogieIcfgContainer [2023-11-29 01:01:04,093 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:01:04,095 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:01:04,095 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:01:04,099 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:01:04,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:01:02" (1/3) ... [2023-11-29 01:01:04,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f76daf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:01:04, skipping insertion in model container [2023-11-29 01:01:04,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:01:03" (2/3) ... [2023-11-29 01:01:04,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f76daf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:01:04, skipping insertion in model container [2023-11-29 01:01:04,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:01:04" (3/3) ... [2023-11-29 01:01:04,101 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2023-11-29 01:01:04,109 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 01:01:04,117 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:01:04,117 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 01:01:04,117 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 01:01:04,159 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-29 01:01:04,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 45 transitions, 104 flow [2023-11-29 01:01:04,213 INFO L124 PetriNetUnfolderBase]: 2/53 cut-off events. [2023-11-29 01:01:04,214 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 01:01:04,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 53 events. 2/53 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 126 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 29. Up to 3 conditions per place. [2023-11-29 01:01:04,216 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 45 transitions, 104 flow [2023-11-29 01:01:04,218 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 39 transitions, 87 flow [2023-11-29 01:01:04,228 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:01:04,234 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b16a162, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:01:04,234 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-29 01:01:04,243 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 01:01:04,243 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2023-11-29 01:01:04,243 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:01:04,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:04,244 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:01:04,244 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:01:04,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:04,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1883669891, now seen corresponding path program 1 times [2023-11-29 01:01:04,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:04,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130266948] [2023-11-29 01:01:04,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:04,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:05,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:01:05,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:05,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130266948] [2023-11-29 01:01:05,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130266948] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:05,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:05,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:01:05,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207467237] [2023-11-29 01:01:05,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:05,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:01:05,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:05,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:01:05,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:01:05,148 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:01:05,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 87 flow. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:05,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:05,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:01:05,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:06,035 INFO L124 PetriNetUnfolderBase]: 2221/3702 cut-off events. [2023-11-29 01:01:06,035 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-11-29 01:01:06,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7352 conditions, 3702 events. 2221/3702 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 21064 event pairs, 1170 based on Foata normal form. 0/3238 useless extension candidates. Maximal degree in co-relation 7260. Up to 2402 conditions per place. [2023-11-29 01:01:06,067 INFO L140 encePairwiseOnDemand]: 33/45 looper letters, 85 selfloop transitions, 24 changer transitions 3/116 dead transitions. [2023-11-29 01:01:06,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 116 transitions, 480 flow [2023-11-29 01:01:06,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:01:06,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 01:01:06,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 186 transitions. [2023-11-29 01:01:06,082 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41333333333333333 [2023-11-29 01:01:06,083 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 186 transitions. [2023-11-29 01:01:06,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 186 transitions. [2023-11-29 01:01:06,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:06,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 186 transitions. [2023-11-29 01:01:06,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 18.6) internal successors, (186), 10 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:06,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:06,094 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:06,096 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 87 flow. Second operand 10 states and 186 transitions. [2023-11-29 01:01:06,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 116 transitions, 480 flow [2023-11-29 01:01:06,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 116 transitions, 469 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 01:01:06,106 INFO L231 Difference]: Finished difference. Result has 57 places, 64 transitions, 235 flow [2023-11-29 01:01:06,109 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=235, PETRI_PLACES=57, PETRI_TRANSITIONS=64} [2023-11-29 01:01:06,112 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 11 predicate places. [2023-11-29 01:01:06,112 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 64 transitions, 235 flow [2023-11-29 01:01:06,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:06,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:06,113 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:01:06,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:01:06,113 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:01:06,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:06,114 INFO L85 PathProgramCache]: Analyzing trace with hash -407743703, now seen corresponding path program 1 times [2023-11-29 01:01:06,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:06,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425644772] [2023-11-29 01:01:06,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:06,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:06,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:01:06,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:06,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425644772] [2023-11-29 01:01:06,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425644772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:06,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:06,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:01:06,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906255567] [2023-11-29 01:01:06,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:06,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:01:06,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:06,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:01:06,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:01:06,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:01:06,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 64 transitions, 235 flow. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:06,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:06,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:01:06,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:07,283 INFO L124 PetriNetUnfolderBase]: 2697/4570 cut-off events. [2023-11-29 01:01:07,283 INFO L125 PetriNetUnfolderBase]: For 1586/1588 co-relation queries the response was YES. [2023-11-29 01:01:07,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10903 conditions, 4570 events. 2697/4570 cut-off events. For 1586/1588 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 28016 event pairs, 1670 based on Foata normal form. 2/4180 useless extension candidates. Maximal degree in co-relation 9307. Up to 3258 conditions per place. [2023-11-29 01:01:07,310 INFO L140 encePairwiseOnDemand]: 33/45 looper letters, 90 selfloop transitions, 33 changer transitions 5/132 dead transitions. [2023-11-29 01:01:07,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 132 transitions, 713 flow [2023-11-29 01:01:07,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:01:07,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 01:01:07,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 183 transitions. [2023-11-29 01:01:07,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4066666666666667 [2023-11-29 01:01:07,313 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 183 transitions. [2023-11-29 01:01:07,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 183 transitions. [2023-11-29 01:01:07,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:07,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 183 transitions. [2023-11-29 01:01:07,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 18.3) internal successors, (183), 10 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) [2023-11-29 01:01:07,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:07,317 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:07,318 INFO L175 Difference]: Start difference. First operand has 57 places, 64 transitions, 235 flow. Second operand 10 states and 183 transitions. [2023-11-29 01:01:07,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 132 transitions, 713 flow [2023-11-29 01:01:07,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 132 transitions, 711 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 01:01:07,326 INFO L231 Difference]: Finished difference. Result has 69 places, 84 transitions, 426 flow [2023-11-29 01:01:07,327 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=426, PETRI_PLACES=69, PETRI_TRANSITIONS=84} [2023-11-29 01:01:07,327 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 23 predicate places. [2023-11-29 01:01:07,327 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 84 transitions, 426 flow [2023-11-29 01:01:07,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:07,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:07,328 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:01:07,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:01:07,328 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:01:07,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:07,329 INFO L85 PathProgramCache]: Analyzing trace with hash -692664888, now seen corresponding path program 1 times [2023-11-29 01:01:07,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:07,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83828986] [2023-11-29 01:01:07,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:07,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:07,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:01:07,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:07,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83828986] [2023-11-29 01:01:07,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83828986] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:07,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:07,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 01:01:07,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807387713] [2023-11-29 01:01:07,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:07,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:01:07,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:07,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:01:07,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:01:07,873 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:01:07,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 84 transitions, 426 flow. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:07,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:07,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:01:07,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:09,056 INFO L124 PetriNetUnfolderBase]: 2901/4994 cut-off events. [2023-11-29 01:01:09,057 INFO L125 PetriNetUnfolderBase]: For 3819/3827 co-relation queries the response was YES. [2023-11-29 01:01:09,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13722 conditions, 4994 events. 2901/4994 cut-off events. For 3819/3827 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 32258 event pairs, 794 based on Foata normal form. 72/4790 useless extension candidates. Maximal degree in co-relation 12697. Up to 3792 conditions per place. [2023-11-29 01:01:09,099 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 171 selfloop transitions, 30 changer transitions 3/208 dead transitions. [2023-11-29 01:01:09,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 208 transitions, 1412 flow [2023-11-29 01:01:09,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:01:09,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 01:01:09,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 195 transitions. [2023-11-29 01:01:09,102 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2023-11-29 01:01:09,102 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 195 transitions. [2023-11-29 01:01:09,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 195 transitions. [2023-11-29 01:01:09,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:09,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 195 transitions. [2023-11-29 01:01:09,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.5) internal successors, (195), 10 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) [2023-11-29 01:01:09,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:09,106 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:09,106 INFO L175 Difference]: Start difference. First operand has 69 places, 84 transitions, 426 flow. Second operand 10 states and 195 transitions. [2023-11-29 01:01:09,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 208 transitions, 1412 flow [2023-11-29 01:01:09,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 208 transitions, 1412 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:01:09,141 INFO L231 Difference]: Finished difference. Result has 85 places, 106 transitions, 655 flow [2023-11-29 01:01:09,142 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=655, PETRI_PLACES=85, PETRI_TRANSITIONS=106} [2023-11-29 01:01:09,142 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 39 predicate places. [2023-11-29 01:01:09,143 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 106 transitions, 655 flow [2023-11-29 01:01:09,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:09,143 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:09,143 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:01:09,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:01:09,143 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:01:09,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:09,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1961456093, now seen corresponding path program 1 times [2023-11-29 01:01:09,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:09,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387865503] [2023-11-29 01:01:09,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:09,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:09,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:01:09,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:09,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387865503] [2023-11-29 01:01:09,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387865503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:09,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:09,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:01:09,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906004285] [2023-11-29 01:01:09,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:09,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:01:09,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:09,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:01:09,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:01:09,258 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 45 [2023-11-29 01:01:09,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 106 transitions, 655 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:09,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:09,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 45 [2023-11-29 01:01:09,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:09,951 INFO L124 PetriNetUnfolderBase]: 2261/3880 cut-off events. [2023-11-29 01:01:09,951 INFO L125 PetriNetUnfolderBase]: For 4601/4604 co-relation queries the response was YES. [2023-11-29 01:01:09,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12101 conditions, 3880 events. 2261/3880 cut-off events. For 4601/4604 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 23996 event pairs, 698 based on Foata normal form. 1/3665 useless extension candidates. Maximal degree in co-relation 11204. Up to 3006 conditions per place. [2023-11-29 01:01:09,984 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 137 selfloop transitions, 14 changer transitions 0/154 dead transitions. [2023-11-29 01:01:09,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 154 transitions, 1241 flow [2023-11-29 01:01:09,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:01:09,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 01:01:09,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 94 transitions. [2023-11-29 01:01:09,985 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5222222222222223 [2023-11-29 01:01:09,986 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 94 transitions. [2023-11-29 01:01:09,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 94 transitions. [2023-11-29 01:01:09,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:09,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 94 transitions. [2023-11-29 01:01:09,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:09,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:09,988 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:09,988 INFO L175 Difference]: Start difference. First operand has 85 places, 106 transitions, 655 flow. Second operand 4 states and 94 transitions. [2023-11-29 01:01:09,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 154 transitions, 1241 flow [2023-11-29 01:01:10,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 154 transitions, 1229 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-11-29 01:01:10,010 INFO L231 Difference]: Finished difference. Result has 84 places, 94 transitions, 605 flow [2023-11-29 01:01:10,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=577, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=605, PETRI_PLACES=84, PETRI_TRANSITIONS=94} [2023-11-29 01:01:10,011 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 38 predicate places. [2023-11-29 01:01:10,012 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 94 transitions, 605 flow [2023-11-29 01:01:10,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:10,012 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:10,012 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:01:10,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 01:01:10,013 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:01:10,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:10,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1162812288, now seen corresponding path program 1 times [2023-11-29 01:01:10,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:10,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28216873] [2023-11-29 01:01:10,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:10,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:10,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:01:10,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:10,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28216873] [2023-11-29 01:01:10,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28216873] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:10,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:10,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:01:10,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635684961] [2023-11-29 01:01:10,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:10,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:01:10,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:10,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:01:10,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:01:10,692 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:01:10,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 94 transitions, 605 flow. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:10,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:10,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:01:10,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:11,810 INFO L124 PetriNetUnfolderBase]: 2559/4369 cut-off events. [2023-11-29 01:01:11,810 INFO L125 PetriNetUnfolderBase]: For 5490/5498 co-relation queries the response was YES. [2023-11-29 01:01:11,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13724 conditions, 4369 events. 2559/4369 cut-off events. For 5490/5498 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 26246 event pairs, 1231 based on Foata normal form. 56/4193 useless extension candidates. Maximal degree in co-relation 12661. Up to 2627 conditions per place. [2023-11-29 01:01:11,838 INFO L140 encePairwiseOnDemand]: 33/45 looper letters, 131 selfloop transitions, 50 changer transitions 4/188 dead transitions. [2023-11-29 01:01:11,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 188 transitions, 1511 flow [2023-11-29 01:01:11,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:01:11,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 01:01:11,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 202 transitions. [2023-11-29 01:01:11,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37407407407407406 [2023-11-29 01:01:11,840 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 202 transitions. [2023-11-29 01:01:11,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 202 transitions. [2023-11-29 01:01:11,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:11,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 202 transitions. [2023-11-29 01:01:11,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 16.833333333333332) internal successors, (202), 12 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:11,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 45.0) internal successors, (585), 13 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:11,843 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 45.0) internal successors, (585), 13 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:11,843 INFO L175 Difference]: Start difference. First operand has 84 places, 94 transitions, 605 flow. Second operand 12 states and 202 transitions. [2023-11-29 01:01:11,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 188 transitions, 1511 flow [2023-11-29 01:01:11,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 188 transitions, 1480 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:01:11,860 INFO L231 Difference]: Finished difference. Result has 100 places, 122 transitions, 959 flow [2023-11-29 01:01:11,861 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=959, PETRI_PLACES=100, PETRI_TRANSITIONS=122} [2023-11-29 01:01:11,861 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 54 predicate places. [2023-11-29 01:01:11,862 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 122 transitions, 959 flow [2023-11-29 01:01:11,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:11,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:11,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:01:11,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 01:01:11,862 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:01:11,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:11,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1205075178, now seen corresponding path program 2 times [2023-11-29 01:01:11,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:11,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430399562] [2023-11-29 01:01:11,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:11,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:12,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:01:12,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:12,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430399562] [2023-11-29 01:01:12,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430399562] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:12,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:12,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 01:01:12,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499109855] [2023-11-29 01:01:12,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:12,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:01:12,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:12,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:01:12,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:01:12,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:01:12,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 122 transitions, 959 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:12,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:12,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:01:12,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:14,009 INFO L124 PetriNetUnfolderBase]: 3261/5593 cut-off events. [2023-11-29 01:01:14,009 INFO L125 PetriNetUnfolderBase]: For 10344/10352 co-relation queries the response was YES. [2023-11-29 01:01:14,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19877 conditions, 5593 events. 3261/5593 cut-off events. For 10344/10352 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 34997 event pairs, 1391 based on Foata normal form. 96/5415 useless extension candidates. Maximal degree in co-relation 18562. Up to 3096 conditions per place. [2023-11-29 01:01:14,055 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 163 selfloop transitions, 101 changer transitions 5/272 dead transitions. [2023-11-29 01:01:14,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 272 transitions, 2486 flow [2023-11-29 01:01:14,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 01:01:14,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-11-29 01:01:14,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 332 transitions. [2023-11-29 01:01:14,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33535353535353535 [2023-11-29 01:01:14,058 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 332 transitions. [2023-11-29 01:01:14,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 332 transitions. [2023-11-29 01:01:14,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:14,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 332 transitions. [2023-11-29 01:01:14,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 15.090909090909092) internal successors, (332), 22 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:14,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 45.0) internal successors, (1035), 23 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:14,063 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 45.0) internal successors, (1035), 23 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:14,063 INFO L175 Difference]: Start difference. First operand has 100 places, 122 transitions, 959 flow. Second operand 22 states and 332 transitions. [2023-11-29 01:01:14,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 272 transitions, 2486 flow [2023-11-29 01:01:14,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 272 transitions, 2438 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-11-29 01:01:14,109 INFO L231 Difference]: Finished difference. Result has 126 places, 177 transitions, 1744 flow [2023-11-29 01:01:14,110 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=924, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1744, PETRI_PLACES=126, PETRI_TRANSITIONS=177} [2023-11-29 01:01:14,111 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 80 predicate places. [2023-11-29 01:01:14,111 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 177 transitions, 1744 flow [2023-11-29 01:01:14,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:14,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:14,111 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:01:14,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 01:01:14,111 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:01:14,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:14,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1763124812, now seen corresponding path program 1 times [2023-11-29 01:01:14,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:14,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139727024] [2023-11-29 01:01:14,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:14,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:14,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:01:14,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:14,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139727024] [2023-11-29 01:01:14,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139727024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:14,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:14,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 01:01:14,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866753703] [2023-11-29 01:01:14,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:14,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:01:14,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:14,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:01:14,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:01:14,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:01:14,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 177 transitions, 1744 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:14,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:14,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:01:14,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:15,902 INFO L124 PetriNetUnfolderBase]: 4347/7483 cut-off events. [2023-11-29 01:01:15,902 INFO L125 PetriNetUnfolderBase]: For 22886/22894 co-relation queries the response was YES. [2023-11-29 01:01:15,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30441 conditions, 7483 events. 4347/7483 cut-off events. For 22886/22894 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 49923 event pairs, 2069 based on Foata normal form. 100/7237 useless extension candidates. Maximal degree in co-relation 27789. Up to 5232 conditions per place. [2023-11-29 01:01:15,949 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 212 selfloop transitions, 81 changer transitions 9/305 dead transitions. [2023-11-29 01:01:15,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 305 transitions, 3512 flow [2023-11-29 01:01:15,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:01:15,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-29 01:01:15,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 212 transitions. [2023-11-29 01:01:15,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3925925925925926 [2023-11-29 01:01:15,951 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 212 transitions. [2023-11-29 01:01:15,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 212 transitions. [2023-11-29 01:01:15,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:15,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 212 transitions. [2023-11-29 01:01:15,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 17.666666666666668) internal successors, (212), 12 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:15,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 45.0) internal successors, (585), 13 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:15,954 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 45.0) internal successors, (585), 13 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:15,954 INFO L175 Difference]: Start difference. First operand has 126 places, 177 transitions, 1744 flow. Second operand 12 states and 212 transitions. [2023-11-29 01:01:15,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 305 transitions, 3512 flow [2023-11-29 01:01:16,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 305 transitions, 3323 flow, removed 28 selfloop flow, removed 8 redundant places. [2023-11-29 01:01:16,090 INFO L231 Difference]: Finished difference. Result has 136 places, 224 transitions, 2448 flow [2023-11-29 01:01:16,091 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1611, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2448, PETRI_PLACES=136, PETRI_TRANSITIONS=224} [2023-11-29 01:01:16,092 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 90 predicate places. [2023-11-29 01:01:16,092 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 224 transitions, 2448 flow [2023-11-29 01:01:16,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:16,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:16,092 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:01:16,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 01:01:16,092 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:01:16,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:16,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1763124492, now seen corresponding path program 3 times [2023-11-29 01:01:16,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:16,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266373659] [2023-11-29 01:01:16,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:16,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:16,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:01:16,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:16,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266373659] [2023-11-29 01:01:16,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266373659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:16,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:16,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 01:01:16,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310247898] [2023-11-29 01:01:16,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:16,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:01:16,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:16,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:01:16,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:01:16,410 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:01:16,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 224 transitions, 2448 flow. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:16,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:16,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:01:16,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:18,251 INFO L124 PetriNetUnfolderBase]: 5777/10015 cut-off events. [2023-11-29 01:01:18,251 INFO L125 PetriNetUnfolderBase]: For 39516/39524 co-relation queries the response was YES. [2023-11-29 01:01:18,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43637 conditions, 10015 events. 5777/10015 cut-off events. For 39516/39524 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 71987 event pairs, 2197 based on Foata normal form. 60/9571 useless extension candidates. Maximal degree in co-relation 41258. Up to 4155 conditions per place. [2023-11-29 01:01:18,316 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 354 selfloop transitions, 68 changer transitions 5/430 dead transitions. [2023-11-29 01:01:18,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 430 transitions, 5173 flow [2023-11-29 01:01:18,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:01:18,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 01:01:18,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 238 transitions. [2023-11-29 01:01:18,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4808080808080808 [2023-11-29 01:01:18,319 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 238 transitions. [2023-11-29 01:01:18,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 238 transitions. [2023-11-29 01:01:18,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:18,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 238 transitions. [2023-11-29 01:01:18,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 21.636363636363637) internal successors, (238), 11 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:18,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 45.0) internal successors, (540), 12 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:18,322 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 45.0) internal successors, (540), 12 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:18,322 INFO L175 Difference]: Start difference. First operand has 136 places, 224 transitions, 2448 flow. Second operand 11 states and 238 transitions. [2023-11-29 01:01:18,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 430 transitions, 5173 flow [2023-11-29 01:01:18,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 430 transitions, 5156 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-29 01:01:18,653 INFO L231 Difference]: Finished difference. Result has 150 places, 244 transitions, 2868 flow [2023-11-29 01:01:18,654 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=2431, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2868, PETRI_PLACES=150, PETRI_TRANSITIONS=244} [2023-11-29 01:01:18,655 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 104 predicate places. [2023-11-29 01:01:18,655 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 244 transitions, 2868 flow [2023-11-29 01:01:18,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:18,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:18,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:01:18,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 01:01:18,656 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:01:18,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:18,656 INFO L85 PathProgramCache]: Analyzing trace with hash -754872834, now seen corresponding path program 4 times [2023-11-29 01:01:18,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:18,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218045781] [2023-11-29 01:01:18,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:18,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:19,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:01:19,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:19,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218045781] [2023-11-29 01:01:19,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218045781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:19,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:19,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 01:01:19,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048709918] [2023-11-29 01:01:19,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:19,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:01:19,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:19,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:01:19,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:01:19,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:01:19,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 244 transitions, 2868 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:19,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:19,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:01:19,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:22,022 INFO L124 PetriNetUnfolderBase]: 6549/11463 cut-off events. [2023-11-29 01:01:22,022 INFO L125 PetriNetUnfolderBase]: For 58905/58913 co-relation queries the response was YES. [2023-11-29 01:01:22,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52890 conditions, 11463 events. 6549/11463 cut-off events. For 58905/58913 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 84804 event pairs, 3777 based on Foata normal form. 104/11029 useless extension candidates. Maximal degree in co-relation 48986. Up to 7713 conditions per place. [2023-11-29 01:01:22,110 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 247 selfloop transitions, 131 changer transitions 12/393 dead transitions. [2023-11-29 01:01:22,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 393 transitions, 5075 flow [2023-11-29 01:01:22,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 01:01:22,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 01:01:22,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 308 transitions. [2023-11-29 01:01:22,112 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3422222222222222 [2023-11-29 01:01:22,112 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 308 transitions. [2023-11-29 01:01:22,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 308 transitions. [2023-11-29 01:01:22,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:22,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 308 transitions. [2023-11-29 01:01:22,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 15.4) internal successors, (308), 20 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:22,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 45.0) internal successors, (945), 21 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:22,115 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 45.0) internal successors, (945), 21 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:22,115 INFO L175 Difference]: Start difference. First operand has 150 places, 244 transitions, 2868 flow. Second operand 20 states and 308 transitions. [2023-11-29 01:01:22,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 393 transitions, 5075 flow [2023-11-29 01:01:22,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 393 transitions, 4920 flow, removed 49 selfloop flow, removed 3 redundant places. [2023-11-29 01:01:22,479 INFO L231 Difference]: Finished difference. Result has 172 places, 291 transitions, 3787 flow [2023-11-29 01:01:22,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=2767, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3787, PETRI_PLACES=172, PETRI_TRANSITIONS=291} [2023-11-29 01:01:22,480 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 126 predicate places. [2023-11-29 01:01:22,480 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 291 transitions, 3787 flow [2023-11-29 01:01:22,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:22,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:22,480 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:01:22,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 01:01:22,480 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:01:22,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:22,481 INFO L85 PathProgramCache]: Analyzing trace with hash 909855659, now seen corresponding path program 1 times [2023-11-29 01:01:22,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:22,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667131928] [2023-11-29 01:01:22,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:22,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:22,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:01:22,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:22,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667131928] [2023-11-29 01:01:22,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667131928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:22,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:22,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 01:01:22,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687414816] [2023-11-29 01:01:22,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:22,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:01:22,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:22,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:01:22,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:01:22,976 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:01:22,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 291 transitions, 3787 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:22,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:22,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:01:22,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:25,966 INFO L124 PetriNetUnfolderBase]: 6793/11888 cut-off events. [2023-11-29 01:01:25,966 INFO L125 PetriNetUnfolderBase]: For 64363/64371 co-relation queries the response was YES. [2023-11-29 01:01:26,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55378 conditions, 11888 events. 6793/11888 cut-off events. For 64363/64371 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 87814 event pairs, 3786 based on Foata normal form. 136/11470 useless extension candidates. Maximal degree in co-relation 52199. Up to 7775 conditions per place. [2023-11-29 01:01:26,050 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 268 selfloop transitions, 110 changer transitions 16/397 dead transitions. [2023-11-29 01:01:26,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 397 transitions, 5491 flow [2023-11-29 01:01:26,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 01:01:26,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-29 01:01:26,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 242 transitions. [2023-11-29 01:01:26,052 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3585185185185185 [2023-11-29 01:01:26,052 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 242 transitions. [2023-11-29 01:01:26,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 242 transitions. [2023-11-29 01:01:26,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:26,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 242 transitions. [2023-11-29 01:01:26,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 16.133333333333333) internal successors, (242), 15 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:26,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 45.0) internal successors, (720), 16 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:26,055 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 45.0) internal successors, (720), 16 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:26,056 INFO L175 Difference]: Start difference. First operand has 172 places, 291 transitions, 3787 flow. Second operand 15 states and 242 transitions. [2023-11-29 01:01:26,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 397 transitions, 5491 flow [2023-11-29 01:01:26,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 397 transitions, 5309 flow, removed 55 selfloop flow, removed 5 redundant places. [2023-11-29 01:01:26,572 INFO L231 Difference]: Finished difference. Result has 184 places, 296 transitions, 3954 flow [2023-11-29 01:01:26,573 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=3635, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3954, PETRI_PLACES=184, PETRI_TRANSITIONS=296} [2023-11-29 01:01:26,574 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 138 predicate places. [2023-11-29 01:01:26,574 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 296 transitions, 3954 flow [2023-11-29 01:01:26,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:26,574 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:26,574 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:01:26,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 01:01:26,574 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:01:26,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:26,575 INFO L85 PathProgramCache]: Analyzing trace with hash -2013824657, now seen corresponding path program 1 times [2023-11-29 01:01:26,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:26,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922726645] [2023-11-29 01:01:26,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:26,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:26,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:01:26,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:26,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922726645] [2023-11-29 01:01:26,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922726645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:26,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:26,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:01:26,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561937325] [2023-11-29 01:01:26,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:26,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:01:26,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:26,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:01:26,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:01:26,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:01:26,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 296 transitions, 3954 flow. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:26,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:26,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:01:26,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:29,854 INFO L124 PetriNetUnfolderBase]: 6809/11914 cut-off events. [2023-11-29 01:01:29,854 INFO L125 PetriNetUnfolderBase]: For 70417/70425 co-relation queries the response was YES. [2023-11-29 01:01:29,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57965 conditions, 11914 events. 6809/11914 cut-off events. For 70417/70425 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 87975 event pairs, 3635 based on Foata normal form. 83/11403 useless extension candidates. Maximal degree in co-relation 53669. Up to 8420 conditions per place. [2023-11-29 01:01:29,942 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 287 selfloop transitions, 122 changer transitions 12/424 dead transitions. [2023-11-29 01:01:29,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 424 transitions, 6000 flow [2023-11-29 01:01:29,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:01:29,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 01:01:29,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 216 transitions. [2023-11-29 01:01:29,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36923076923076925 [2023-11-29 01:01:29,943 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 216 transitions. [2023-11-29 01:01:29,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 216 transitions. [2023-11-29 01:01:29,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:29,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 216 transitions. [2023-11-29 01:01:29,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 16.615384615384617) internal successors, (216), 13 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:29,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 45.0) internal successors, (630), 14 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:29,945 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 45.0) internal successors, (630), 14 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:29,945 INFO L175 Difference]: Start difference. First operand has 184 places, 296 transitions, 3954 flow. Second operand 13 states and 216 transitions. [2023-11-29 01:01:29,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 424 transitions, 6000 flow [2023-11-29 01:01:30,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 424 transitions, 5709 flow, removed 26 selfloop flow, removed 10 redundant places. [2023-11-29 01:01:30,451 INFO L231 Difference]: Finished difference. Result has 192 places, 335 transitions, 4545 flow [2023-11-29 01:01:30,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=3725, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4545, PETRI_PLACES=192, PETRI_TRANSITIONS=335} [2023-11-29 01:01:30,452 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 146 predicate places. [2023-11-29 01:01:30,452 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 335 transitions, 4545 flow [2023-11-29 01:01:30,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:30,452 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:30,452 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:01:30,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 01:01:30,452 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:01:30,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:30,453 INFO L85 PathProgramCache]: Analyzing trace with hash 2106895275, now seen corresponding path program 2 times [2023-11-29 01:01:30,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:30,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120754002] [2023-11-29 01:01:30,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:30,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:30,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:01:30,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:30,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120754002] [2023-11-29 01:01:30,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120754002] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:30,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:30,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 01:01:30,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866024902] [2023-11-29 01:01:30,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:30,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:01:30,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:30,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:01:30,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:01:30,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:01:30,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 335 transitions, 4545 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:30,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:30,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:01:30,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:34,200 INFO L124 PetriNetUnfolderBase]: 7213/12628 cut-off events. [2023-11-29 01:01:34,201 INFO L125 PetriNetUnfolderBase]: For 90774/90782 co-relation queries the response was YES. [2023-11-29 01:01:34,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65824 conditions, 12628 events. 7213/12628 cut-off events. For 90774/90782 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 94314 event pairs, 3917 based on Foata normal form. 126/12174 useless extension candidates. Maximal degree in co-relation 60309. Up to 8740 conditions per place. [2023-11-29 01:01:34,304 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 287 selfloop transitions, 191 changer transitions 15/496 dead transitions. [2023-11-29 01:01:34,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 496 transitions, 7242 flow [2023-11-29 01:01:34,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 01:01:34,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-29 01:01:34,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 304 transitions. [2023-11-29 01:01:34,306 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35555555555555557 [2023-11-29 01:01:34,306 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 304 transitions. [2023-11-29 01:01:34,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 304 transitions. [2023-11-29 01:01:34,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:34,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 304 transitions. [2023-11-29 01:01:34,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 16.0) internal successors, (304), 19 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:34,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 45.0) internal successors, (900), 20 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:34,309 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 45.0) internal successors, (900), 20 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:34,309 INFO L175 Difference]: Start difference. First operand has 192 places, 335 transitions, 4545 flow. Second operand 19 states and 304 transitions. [2023-11-29 01:01:34,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 496 transitions, 7242 flow [2023-11-29 01:01:34,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 496 transitions, 7084 flow, removed 28 selfloop flow, removed 5 redundant places. [2023-11-29 01:01:34,981 INFO L231 Difference]: Finished difference. Result has 213 places, 372 transitions, 5560 flow [2023-11-29 01:01:34,981 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=4413, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=155, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=5560, PETRI_PLACES=213, PETRI_TRANSITIONS=372} [2023-11-29 01:01:34,982 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 167 predicate places. [2023-11-29 01:01:34,982 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 372 transitions, 5560 flow [2023-11-29 01:01:34,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:34,982 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:34,982 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:01:34,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 01:01:34,982 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:01:34,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:34,982 INFO L85 PathProgramCache]: Analyzing trace with hash 343358792, now seen corresponding path program 5 times [2023-11-29 01:01:34,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:34,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025422436] [2023-11-29 01:01:34,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:34,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:35,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:01:35,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:35,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025422436] [2023-11-29 01:01:35,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025422436] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:35,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:35,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 01:01:35,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485096105] [2023-11-29 01:01:35,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:35,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:01:35,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:35,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:01:35,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:01:35,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:01:35,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 372 transitions, 5560 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:35,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:35,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:01:35,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:39,161 INFO L124 PetriNetUnfolderBase]: 7491/13121 cut-off events. [2023-11-29 01:01:39,161 INFO L125 PetriNetUnfolderBase]: For 116524/116532 co-relation queries the response was YES. [2023-11-29 01:01:39,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72450 conditions, 13121 events. 7491/13121 cut-off events. For 116524/116532 co-relation queries the response was YES. Maximal size of possible extension queue 622. Compared 98744 event pairs, 4241 based on Foata normal form. 104/12641 useless extension candidates. Maximal degree in co-relation 66937. Up to 8478 conditions per place. [2023-11-29 01:01:39,303 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 284 selfloop transitions, 181 changer transitions 13/481 dead transitions. [2023-11-29 01:01:39,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 481 transitions, 7629 flow [2023-11-29 01:01:39,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 01:01:39,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 01:01:39,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 318 transitions. [2023-11-29 01:01:39,306 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33650793650793653 [2023-11-29 01:01:39,306 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 318 transitions. [2023-11-29 01:01:39,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 318 transitions. [2023-11-29 01:01:39,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:39,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 318 transitions. [2023-11-29 01:01:39,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 15.142857142857142) internal successors, (318), 21 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:39,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 45.0) internal successors, (990), 22 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:39,310 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 45.0) internal successors, (990), 22 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:39,310 INFO L175 Difference]: Start difference. First operand has 213 places, 372 transitions, 5560 flow. Second operand 21 states and 318 transitions. [2023-11-29 01:01:39,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 481 transitions, 7629 flow [2023-11-29 01:01:40,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 481 transitions, 7193 flow, removed 94 selfloop flow, removed 13 redundant places. [2023-11-29 01:01:40,428 INFO L231 Difference]: Finished difference. Result has 224 places, 390 transitions, 5911 flow [2023-11-29 01:01:40,429 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=5214, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=164, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=5911, PETRI_PLACES=224, PETRI_TRANSITIONS=390} [2023-11-29 01:01:40,429 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 178 predicate places. [2023-11-29 01:01:40,429 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 390 transitions, 5911 flow [2023-11-29 01:01:40,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:40,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:40,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:01:40,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 01:01:40,430 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:01:40,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:40,430 INFO L85 PathProgramCache]: Analyzing trace with hash 2031049011, now seen corresponding path program 1 times [2023-11-29 01:01:40,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:40,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063431569] [2023-11-29 01:01:40,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:40,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:40,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:01:40,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:40,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063431569] [2023-11-29 01:01:40,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063431569] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:40,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:40,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:01:40,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289202835] [2023-11-29 01:01:40,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:40,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:01:40,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:40,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:01:40,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:01:40,887 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:01:40,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 390 transitions, 5911 flow. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:40,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:40,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:01:40,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:44,317 INFO L124 PetriNetUnfolderBase]: 7166/12545 cut-off events. [2023-11-29 01:01:44,317 INFO L125 PetriNetUnfolderBase]: For 122472/122480 co-relation queries the response was YES. [2023-11-29 01:01:44,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72139 conditions, 12545 events. 7166/12545 cut-off events. For 122472/122480 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 93849 event pairs, 3998 based on Foata normal form. 48/11994 useless extension candidates. Maximal degree in co-relation 68261. Up to 7985 conditions per place. [2023-11-29 01:01:44,467 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 343 selfloop transitions, 166 changer transitions 9/521 dead transitions. [2023-11-29 01:01:44,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 521 transitions, 8384 flow [2023-11-29 01:01:44,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 01:01:44,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-29 01:01:44,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 240 transitions. [2023-11-29 01:01:44,469 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35555555555555557 [2023-11-29 01:01:44,469 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 240 transitions. [2023-11-29 01:01:44,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 240 transitions. [2023-11-29 01:01:44,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:44,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 240 transitions. [2023-11-29 01:01:44,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 16.0) internal successors, (240), 15 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:44,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 45.0) internal successors, (720), 16 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:44,472 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 45.0) internal successors, (720), 16 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:44,472 INFO L175 Difference]: Start difference. First operand has 224 places, 390 transitions, 5911 flow. Second operand 15 states and 240 transitions. [2023-11-29 01:01:44,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 521 transitions, 8384 flow [2023-11-29 01:01:45,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 521 transitions, 8018 flow, removed 34 selfloop flow, removed 9 redundant places. [2023-11-29 01:01:45,498 INFO L231 Difference]: Finished difference. Result has 234 places, 420 transitions, 6434 flow [2023-11-29 01:01:45,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=5583, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6434, PETRI_PLACES=234, PETRI_TRANSITIONS=420} [2023-11-29 01:01:45,499 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 188 predicate places. [2023-11-29 01:01:45,499 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 420 transitions, 6434 flow [2023-11-29 01:01:45,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:45,499 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:45,499 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:01:45,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 01:01:45,500 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:01:45,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:45,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1441789973, now seen corresponding path program 2 times [2023-11-29 01:01:45,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:45,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090344110] [2023-11-29 01:01:45,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:45,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:45,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:01:45,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:45,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090344110] [2023-11-29 01:01:45,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090344110] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:45,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:45,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:01:45,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532941704] [2023-11-29 01:01:45,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:45,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:01:45,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:45,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:01:45,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:01:45,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:01:45,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 420 transitions, 6434 flow. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:45,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:45,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:01:45,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:50,179 INFO L124 PetriNetUnfolderBase]: 7581/13474 cut-off events. [2023-11-29 01:01:50,179 INFO L125 PetriNetUnfolderBase]: For 151548/151550 co-relation queries the response was YES. [2023-11-29 01:01:50,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79816 conditions, 13474 events. 7581/13474 cut-off events. For 151548/151550 co-relation queries the response was YES. Maximal size of possible extension queue 652. Compared 104313 event pairs, 4355 based on Foata normal form. 82/12920 useless extension candidates. Maximal degree in co-relation 75359. Up to 9868 conditions per place. [2023-11-29 01:01:50,345 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 376 selfloop transitions, 174 changer transitions 15/568 dead transitions. [2023-11-29 01:01:50,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 568 transitions, 9135 flow [2023-11-29 01:01:50,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 01:01:50,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-29 01:01:50,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 241 transitions. [2023-11-29 01:01:50,347 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35703703703703704 [2023-11-29 01:01:50,347 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 241 transitions. [2023-11-29 01:01:50,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 241 transitions. [2023-11-29 01:01:50,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:50,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 241 transitions. [2023-11-29 01:01:50,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 16.066666666666666) internal successors, (241), 15 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:50,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 45.0) internal successors, (720), 16 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:50,350 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 45.0) internal successors, (720), 16 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:50,350 INFO L175 Difference]: Start difference. First operand has 234 places, 420 transitions, 6434 flow. Second operand 15 states and 241 transitions. [2023-11-29 01:01:50,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 568 transitions, 9135 flow [2023-11-29 01:01:51,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 568 transitions, 8913 flow, removed 62 selfloop flow, removed 5 redundant places. [2023-11-29 01:01:51,651 INFO L231 Difference]: Finished difference. Result has 248 places, 468 transitions, 7348 flow [2023-11-29 01:01:51,652 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=6245, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7348, PETRI_PLACES=248, PETRI_TRANSITIONS=468} [2023-11-29 01:01:51,652 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 202 predicate places. [2023-11-29 01:01:51,652 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 468 transitions, 7348 flow [2023-11-29 01:01:51,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:51,652 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:01:51,652 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:01:51,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 01:01:51,653 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:01:51,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:01:51,653 INFO L85 PathProgramCache]: Analyzing trace with hash -926255761, now seen corresponding path program 1 times [2023-11-29 01:01:51,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:01:51,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511032153] [2023-11-29 01:01:51,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:01:51,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:01:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:01:52,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:01:52,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:01:52,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511032153] [2023-11-29 01:01:52,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511032153] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:01:52,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:01:52,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:01:52,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814942013] [2023-11-29 01:01:52,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:01:52,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:01:52,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:01:52,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:01:52,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:01:52,054 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:01:52,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 468 transitions, 7348 flow. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:52,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:01:52,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:01:52,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:01:59,181 INFO L124 PetriNetUnfolderBase]: 13603/25243 cut-off events. [2023-11-29 01:01:59,181 INFO L125 PetriNetUnfolderBase]: For 315813/315821 co-relation queries the response was YES. [2023-11-29 01:01:59,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144969 conditions, 25243 events. 13603/25243 cut-off events. For 315813/315821 co-relation queries the response was YES. Maximal size of possible extension queue 1467. Compared 232357 event pairs, 4092 based on Foata normal form. 328/24393 useless extension candidates. Maximal degree in co-relation 135330. Up to 7993 conditions per place. [2023-11-29 01:01:59,583 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 589 selfloop transitions, 92 changer transitions 10/694 dead transitions. [2023-11-29 01:01:59,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 694 transitions, 11345 flow [2023-11-29 01:01:59,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:01:59,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 01:01:59,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 233 transitions. [2023-11-29 01:01:59,585 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4707070707070707 [2023-11-29 01:01:59,585 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 233 transitions. [2023-11-29 01:01:59,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 233 transitions. [2023-11-29 01:01:59,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:01:59,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 233 transitions. [2023-11-29 01:01:59,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 21.181818181818183) internal successors, (233), 11 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:59,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 45.0) internal successors, (540), 12 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:59,586 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 45.0) internal successors, (540), 12 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:01:59,586 INFO L175 Difference]: Start difference. First operand has 248 places, 468 transitions, 7348 flow. Second operand 11 states and 233 transitions. [2023-11-29 01:01:59,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 694 transitions, 11345 flow [2023-11-29 01:02:02,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 694 transitions, 11105 flow, removed 89 selfloop flow, removed 4 redundant places. [2023-11-29 01:02:02,160 INFO L231 Difference]: Finished difference. Result has 259 places, 487 transitions, 7732 flow [2023-11-29 01:02:02,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=7209, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=379, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7732, PETRI_PLACES=259, PETRI_TRANSITIONS=487} [2023-11-29 01:02:02,161 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 213 predicate places. [2023-11-29 01:02:02,161 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 487 transitions, 7732 flow [2023-11-29 01:02:02,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:02,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:02,161 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:02:02,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 01:02:02,162 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:02:02,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:02,162 INFO L85 PathProgramCache]: Analyzing trace with hash -446648923, now seen corresponding path program 1 times [2023-11-29 01:02:02,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:02,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637333811] [2023-11-29 01:02:02,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:02,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:02,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:02:02,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:02,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637333811] [2023-11-29 01:02:02,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637333811] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:02,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:02,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:02:02,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641512453] [2023-11-29 01:02:02,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:02,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:02:02,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:02,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:02:02,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:02:02,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:02:02,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 487 transitions, 7732 flow. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:02,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:02,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:02:02,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:15,420 INFO L124 PetriNetUnfolderBase]: 23951/45203 cut-off events. [2023-11-29 01:02:15,420 INFO L125 PetriNetUnfolderBase]: For 675688/675690 co-relation queries the response was YES. [2023-11-29 01:02:16,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282173 conditions, 45203 events. 23951/45203 cut-off events. For 675688/675690 co-relation queries the response was YES. Maximal size of possible extension queue 2859. Compared 462817 event pairs, 9730 based on Foata normal form. 608/43671 useless extension candidates. Maximal degree in co-relation 276736. Up to 17851 conditions per place. [2023-11-29 01:02:16,143 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 593 selfloop transitions, 139 changer transitions 23/758 dead transitions. [2023-11-29 01:02:16,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 758 transitions, 12721 flow [2023-11-29 01:02:16,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:02:16,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 01:02:16,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 240 transitions. [2023-11-29 01:02:16,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48484848484848486 [2023-11-29 01:02:16,144 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 240 transitions. [2023-11-29 01:02:16,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 240 transitions. [2023-11-29 01:02:16,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:16,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 240 transitions. [2023-11-29 01:02:16,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 21.818181818181817) internal successors, (240), 11 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:16,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 45.0) internal successors, (540), 12 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:16,146 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 45.0) internal successors, (540), 12 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:16,146 INFO L175 Difference]: Start difference. First operand has 259 places, 487 transitions, 7732 flow. Second operand 11 states and 240 transitions. [2023-11-29 01:02:16,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 758 transitions, 12721 flow [2023-11-29 01:02:23,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 758 transitions, 12457 flow, removed 79 selfloop flow, removed 6 redundant places. [2023-11-29 01:02:23,609 INFO L231 Difference]: Finished difference. Result has 268 places, 521 transitions, 8599 flow [2023-11-29 01:02:23,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=7608, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=487, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8599, PETRI_PLACES=268, PETRI_TRANSITIONS=521} [2023-11-29 01:02:23,610 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 222 predicate places. [2023-11-29 01:02:23,610 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 521 transitions, 8599 flow [2023-11-29 01:02:23,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:23,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:23,610 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:02:23,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 01:02:23,611 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:02:23,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:23,611 INFO L85 PathProgramCache]: Analyzing trace with hash -2024772351, now seen corresponding path program 2 times [2023-11-29 01:02:23,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:23,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117126950] [2023-11-29 01:02:23,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:23,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:24,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:02:24,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:24,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117126950] [2023-11-29 01:02:24,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117126950] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:24,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:24,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:02:24,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019026653] [2023-11-29 01:02:24,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:24,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:02:24,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:24,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:02:24,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:02:24,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:02:24,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 521 transitions, 8599 flow. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:24,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:24,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:02:24,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:02:38,794 INFO L124 PetriNetUnfolderBase]: 26440/50212 cut-off events. [2023-11-29 01:02:38,794 INFO L125 PetriNetUnfolderBase]: For 899451/899453 co-relation queries the response was YES. [2023-11-29 01:02:39,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338662 conditions, 50212 events. 26440/50212 cut-off events. For 899451/899453 co-relation queries the response was YES. Maximal size of possible extension queue 3206. Compared 523949 event pairs, 13837 based on Foata normal form. 317/48195 useless extension candidates. Maximal degree in co-relation 330296. Up to 30266 conditions per place. [2023-11-29 01:02:39,637 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 625 selfloop transitions, 109 changer transitions 17/754 dead transitions. [2023-11-29 01:02:39,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 754 transitions, 13402 flow [2023-11-29 01:02:39,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:02:39,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 01:02:39,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 219 transitions. [2023-11-29 01:02:39,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4866666666666667 [2023-11-29 01:02:39,639 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 219 transitions. [2023-11-29 01:02:39,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 219 transitions. [2023-11-29 01:02:39,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:02:39,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 219 transitions. [2023-11-29 01:02:39,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 21.9) internal successors, (219), 10 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) [2023-11-29 01:02:39,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:39,641 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:39,641 INFO L175 Difference]: Start difference. First operand has 268 places, 521 transitions, 8599 flow. Second operand 10 states and 219 transitions. [2023-11-29 01:02:39,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 754 transitions, 13402 flow [2023-11-29 01:02:49,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 754 transitions, 13061 flow, removed 136 selfloop flow, removed 3 redundant places. [2023-11-29 01:02:49,289 INFO L231 Difference]: Finished difference. Result has 279 places, 547 transitions, 9207 flow [2023-11-29 01:02:49,289 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=8445, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9207, PETRI_PLACES=279, PETRI_TRANSITIONS=547} [2023-11-29 01:02:49,289 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 233 predicate places. [2023-11-29 01:02:49,289 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 547 transitions, 9207 flow [2023-11-29 01:02:49,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:49,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:02:49,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:02:49,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 01:02:49,290 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:02:49,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:49,290 INFO L85 PathProgramCache]: Analyzing trace with hash -766235263, now seen corresponding path program 3 times [2023-11-29 01:02:49,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:49,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610351746] [2023-11-29 01:02:49,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:49,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:49,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:02:49,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:49,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610351746] [2023-11-29 01:02:49,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610351746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:49,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:49,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:02:49,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265217438] [2023-11-29 01:02:49,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:49,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:02:49,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:49,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:02:49,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:02:49,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:02:49,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 547 transitions, 9207 flow. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:49,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:02:49,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:02:49,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:03:05,580 INFO L124 PetriNetUnfolderBase]: 27886/53694 cut-off events. [2023-11-29 01:03:05,580 INFO L125 PetriNetUnfolderBase]: For 1049441/1049443 co-relation queries the response was YES. [2023-11-29 01:03:06,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374294 conditions, 53694 events. 27886/53694 cut-off events. For 1049441/1049443 co-relation queries the response was YES. Maximal size of possible extension queue 3446. Compared 574198 event pairs, 7589 based on Foata normal form. 247/51535 useless extension candidates. Maximal degree in co-relation 365913. Up to 26802 conditions per place. [2023-11-29 01:03:06,522 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 543 selfloop transitions, 193 changer transitions 32/771 dead transitions. [2023-11-29 01:03:06,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 771 transitions, 14177 flow [2023-11-29 01:03:06,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:03:06,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 01:03:06,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 268 transitions. [2023-11-29 01:03:06,524 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4581196581196581 [2023-11-29 01:03:06,524 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 268 transitions. [2023-11-29 01:03:06,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 268 transitions. [2023-11-29 01:03:06,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:03:06,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 268 transitions. [2023-11-29 01:03:06,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 20.615384615384617) internal successors, (268), 13 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:03:06,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 45.0) internal successors, (630), 14 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:03:06,525 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 45.0) internal successors, (630), 14 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:03:06,526 INFO L175 Difference]: Start difference. First operand has 279 places, 547 transitions, 9207 flow. Second operand 13 states and 268 transitions. [2023-11-29 01:03:06,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 771 transitions, 14177 flow [2023-11-29 01:03:16,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 771 transitions, 13734 flow, removed 158 selfloop flow, removed 4 redundant places. [2023-11-29 01:03:16,496 INFO L231 Difference]: Finished difference. Result has 295 places, 604 transitions, 10619 flow [2023-11-29 01:03:16,496 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=8976, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=547, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10619, PETRI_PLACES=295, PETRI_TRANSITIONS=604} [2023-11-29 01:03:16,497 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 249 predicate places. [2023-11-29 01:03:16,497 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 604 transitions, 10619 flow [2023-11-29 01:03:16,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:03:16,497 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:03:16,497 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:16,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 01:03:16,497 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:03:16,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:16,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1763309791, now seen corresponding path program 2 times [2023-11-29 01:03:16,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:16,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487263914] [2023-11-29 01:03:16,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:16,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:16,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:03:16,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:16,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487263914] [2023-11-29 01:03:16,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487263914] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:16,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:16,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:03:16,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734638935] [2023-11-29 01:03:16,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:16,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:03:16,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:16,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:03:16,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:03:16,870 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:03:16,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 604 transitions, 10619 flow. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:03:16,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:03:16,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:03:16,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:03:34,987 INFO L124 PetriNetUnfolderBase]: 29453/57027 cut-off events. [2023-11-29 01:03:34,987 INFO L125 PetriNetUnfolderBase]: For 1373720/1373722 co-relation queries the response was YES. [2023-11-29 01:03:35,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 425756 conditions, 57027 events. 29453/57027 cut-off events. For 1373720/1373722 co-relation queries the response was YES. Maximal size of possible extension queue 3701. Compared 617449 event pairs, 12680 based on Foata normal form. 738/55307 useless extension candidates. Maximal degree in co-relation 420003. Up to 25141 conditions per place. [2023-11-29 01:03:35,997 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 764 selfloop transitions, 153 changer transitions 42/962 dead transitions. [2023-11-29 01:03:35,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 962 transitions, 18288 flow [2023-11-29 01:03:35,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:03:35,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 01:03:35,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 226 transitions. [2023-11-29 01:03:35,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5022222222222222 [2023-11-29 01:03:35,999 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 226 transitions. [2023-11-29 01:03:35,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 226 transitions. [2023-11-29 01:03:35,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:03:35,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 226 transitions. [2023-11-29 01:03:35,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 22.6) internal successors, (226), 10 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:03:36,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:03:36,000 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:03:36,001 INFO L175 Difference]: Start difference. First operand has 295 places, 604 transitions, 10619 flow. Second operand 10 states and 226 transitions. [2023-11-29 01:03:36,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 962 transitions, 18288 flow [2023-11-29 01:03:52,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 962 transitions, 17660 flow, removed 285 selfloop flow, removed 3 redundant places. [2023-11-29 01:03:52,130 INFO L231 Difference]: Finished difference. Result has 306 places, 653 transitions, 11818 flow [2023-11-29 01:03:52,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=10311, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=604, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=11818, PETRI_PLACES=306, PETRI_TRANSITIONS=653} [2023-11-29 01:03:52,131 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 260 predicate places. [2023-11-29 01:03:52,131 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 653 transitions, 11818 flow [2023-11-29 01:03:52,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:03:52,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:03:52,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:52,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 01:03:52,132 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:03:52,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:52,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1062069823, now seen corresponding path program 3 times [2023-11-29 01:03:52,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:52,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780083260] [2023-11-29 01:03:52,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:52,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:52,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:03:52,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:52,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780083260] [2023-11-29 01:03:52,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780083260] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:52,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:52,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:03:52,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160087121] [2023-11-29 01:03:52,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:52,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:03:52,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:52,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:03:52,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:03:52,417 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:03:52,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 653 transitions, 11818 flow. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:03:52,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:03:52,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:03:52,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:04:13,683 INFO L124 PetriNetUnfolderBase]: 30674/60526 cut-off events. [2023-11-29 01:04:13,683 INFO L125 PetriNetUnfolderBase]: For 1615213/1615215 co-relation queries the response was YES. [2023-11-29 01:04:14,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468423 conditions, 60526 events. 30674/60526 cut-off events. For 1615213/1615215 co-relation queries the response was YES. Maximal size of possible extension queue 3997. Compared 673893 event pairs, 8756 based on Foata normal form. 451/58480 useless extension candidates. Maximal degree in co-relation 462405. Up to 30251 conditions per place. [2023-11-29 01:04:15,009 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 556 selfloop transitions, 281 changer transitions 68/908 dead transitions. [2023-11-29 01:04:15,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 908 transitions, 17971 flow [2023-11-29 01:04:15,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:04:15,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 01:04:15,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 283 transitions. [2023-11-29 01:04:15,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48376068376068376 [2023-11-29 01:04:15,012 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 283 transitions. [2023-11-29 01:04:15,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 283 transitions. [2023-11-29 01:04:15,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:04:15,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 283 transitions. [2023-11-29 01:04:15,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 21.76923076923077) internal successors, (283), 13 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:04:15,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 45.0) internal successors, (630), 14 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:04:15,014 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 45.0) internal successors, (630), 14 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:04:15,014 INFO L175 Difference]: Start difference. First operand has 306 places, 653 transitions, 11818 flow. Second operand 13 states and 283 transitions. [2023-11-29 01:04:15,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 908 transitions, 17971 flow [2023-11-29 01:04:36,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 908 transitions, 17232 flow, removed 300 selfloop flow, removed 4 redundant places. [2023-11-29 01:04:36,593 INFO L231 Difference]: Finished difference. Result has 321 places, 714 transitions, 13470 flow [2023-11-29 01:04:36,594 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=11395, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=653, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=216, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13470, PETRI_PLACES=321, PETRI_TRANSITIONS=714} [2023-11-29 01:04:36,594 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 275 predicate places. [2023-11-29 01:04:36,594 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 714 transitions, 13470 flow [2023-11-29 01:04:36,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:04:36,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:04:36,595 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:04:36,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 01:04:36,595 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:04:36,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:04:36,595 INFO L85 PathProgramCache]: Analyzing trace with hash -434782982, now seen corresponding path program 1 times [2023-11-29 01:04:36,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:04:36,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888765010] [2023-11-29 01:04:36,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:04:36,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:04:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:04:37,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:04:37,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:04:37,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888765010] [2023-11-29 01:04:37,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888765010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:04:37,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:04:37,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 01:04:37,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998467431] [2023-11-29 01:04:37,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:04:37,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 01:04:37,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:04:37,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 01:04:37,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:04:37,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:04:37,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 714 transitions, 13470 flow. Second operand has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:04:37,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:04:37,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:04:37,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:04:59,943 INFO L124 PetriNetUnfolderBase]: 30219/59207 cut-off events. [2023-11-29 01:04:59,943 INFO L125 PetriNetUnfolderBase]: For 1749746/1749754 co-relation queries the response was YES. [2023-11-29 01:05:01,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479822 conditions, 59207 events. 30219/59207 cut-off events. For 1749746/1749754 co-relation queries the response was YES. Maximal size of possible extension queue 3888. Compared 651795 event pairs, 18644 based on Foata normal form. 8/56728 useless extension candidates. Maximal degree in co-relation 457562. Up to 47620 conditions per place. [2023-11-29 01:05:01,364 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 737 selfloop transitions, 132 changer transitions 8/880 dead transitions. [2023-11-29 01:05:01,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 880 transitions, 18107 flow [2023-11-29 01:05:01,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 01:05:01,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 01:05:01,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 283 transitions. [2023-11-29 01:05:01,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3493827160493827 [2023-11-29 01:05:01,366 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 283 transitions. [2023-11-29 01:05:01,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 283 transitions. [2023-11-29 01:05:01,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:01,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 283 transitions. [2023-11-29 01:05:01,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 15.722222222222221) internal successors, (283), 18 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:01,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 45.0) internal successors, (855), 19 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:01,369 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 45.0) internal successors, (855), 19 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:01,369 INFO L175 Difference]: Start difference. First operand has 321 places, 714 transitions, 13470 flow. Second operand 18 states and 283 transitions. [2023-11-29 01:05:01,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 880 transitions, 18107 flow [2023-11-29 01:05:29,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 880 transitions, 17524 flow, removed 199 selfloop flow, removed 4 redundant places. [2023-11-29 01:05:29,208 INFO L231 Difference]: Finished difference. Result has 338 places, 726 transitions, 13561 flow [2023-11-29 01:05:29,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=12933, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=714, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=590, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=13561, PETRI_PLACES=338, PETRI_TRANSITIONS=726} [2023-11-29 01:05:29,209 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 292 predicate places. [2023-11-29 01:05:29,209 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 726 transitions, 13561 flow [2023-11-29 01:05:29,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:29,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:05:29,210 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:29,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 01:05:29,210 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:05:29,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:29,210 INFO L85 PathProgramCache]: Analyzing trace with hash -88909473, now seen corresponding path program 1 times [2023-11-29 01:05:29,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:29,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703708923] [2023-11-29 01:05:29,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:29,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:29,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:05:29,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:29,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703708923] [2023-11-29 01:05:29,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703708923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:29,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:29,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 01:05:29,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645152651] [2023-11-29 01:05:29,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:29,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 01:05:29,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:29,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 01:05:29,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:05:29,771 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:05:29,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 726 transitions, 13561 flow. Second operand has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:29,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:05:29,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:05:29,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:05:56,039 INFO L124 PetriNetUnfolderBase]: 34350/68566 cut-off events. [2023-11-29 01:05:56,040 INFO L125 PetriNetUnfolderBase]: For 2423863/2423871 co-relation queries the response was YES. [2023-11-29 01:05:57,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541088 conditions, 68566 events. 34350/68566 cut-off events. For 2423863/2423871 co-relation queries the response was YES. Maximal size of possible extension queue 4648. Compared 784068 event pairs, 20174 based on Foata normal form. 486/67733 useless extension candidates. Maximal degree in co-relation 507157. Up to 44751 conditions per place. [2023-11-29 01:05:57,641 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 822 selfloop transitions, 149 changer transitions 26/1000 dead transitions. [2023-11-29 01:05:57,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 1000 transitions, 20369 flow [2023-11-29 01:05:57,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 01:05:57,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-29 01:05:57,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 319 transitions. [2023-11-29 01:05:57,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3730994152046784 [2023-11-29 01:05:57,643 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 319 transitions. [2023-11-29 01:05:57,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 319 transitions. [2023-11-29 01:05:57,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:05:57,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 319 transitions. [2023-11-29 01:05:57,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 16.789473684210527) internal successors, (319), 19 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:57,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 45.0) internal successors, (900), 20 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:57,644 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 45.0) internal successors, (900), 20 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:05:57,645 INFO L175 Difference]: Start difference. First operand has 338 places, 726 transitions, 13561 flow. Second operand 19 states and 319 transitions. [2023-11-29 01:05:57,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 1000 transitions, 20369 flow [2023-11-29 01:06:26,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 1000 transitions, 20039 flow, removed 45 selfloop flow, removed 11 redundant places. [2023-11-29 01:06:26,815 INFO L231 Difference]: Finished difference. Result has 348 places, 743 transitions, 14126 flow [2023-11-29 01:06:26,816 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=13191, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=725, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=582, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=14126, PETRI_PLACES=348, PETRI_TRANSITIONS=743} [2023-11-29 01:06:26,816 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 302 predicate places. [2023-11-29 01:06:26,816 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 743 transitions, 14126 flow [2023-11-29 01:06:26,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:06:26,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:06:26,817 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:06:26,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 01:06:26,817 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:06:26,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:06:26,817 INFO L85 PathProgramCache]: Analyzing trace with hash -445324833, now seen corresponding path program 1 times [2023-11-29 01:06:26,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:06:26,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224043272] [2023-11-29 01:06:26,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:26,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:06:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:06:27,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:06:27,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:06:27,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224043272] [2023-11-29 01:06:27,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224043272] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:06:27,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:06:27,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:06:27,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123717958] [2023-11-29 01:06:27,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:06:27,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:06:27,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:06:27,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:06:27,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:06:27,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:06:27,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 743 transitions, 14126 flow. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:06:27,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:06:27,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:06:27,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:06:53,307 INFO L124 PetriNetUnfolderBase]: 32980/65148 cut-off events. [2023-11-29 01:06:53,308 INFO L125 PetriNetUnfolderBase]: For 2503751/2503759 co-relation queries the response was YES. [2023-11-29 01:06:54,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 539597 conditions, 65148 events. 32980/65148 cut-off events. For 2503751/2503759 co-relation queries the response was YES. Maximal size of possible extension queue 4383. Compared 727817 event pairs, 12751 based on Foata normal form. 8/63991 useless extension candidates. Maximal degree in co-relation 516676. Up to 23795 conditions per place. [2023-11-29 01:06:54,933 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 851 selfloop transitions, 252 changer transitions 107/1213 dead transitions. [2023-11-29 01:06:54,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 1213 transitions, 25904 flow [2023-11-29 01:06:54,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 01:06:54,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-29 01:06:54,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 353 transitions. [2023-11-29 01:06:54,936 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4128654970760234 [2023-11-29 01:06:54,936 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 353 transitions. [2023-11-29 01:06:54,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 353 transitions. [2023-11-29 01:06:54,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:06:54,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 353 transitions. [2023-11-29 01:06:54,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 18.57894736842105) internal successors, (353), 19 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:06:54,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 45.0) internal successors, (900), 20 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:06:54,939 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 45.0) internal successors, (900), 20 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:06:54,939 INFO L175 Difference]: Start difference. First operand has 348 places, 743 transitions, 14126 flow. Second operand 19 states and 353 transitions. [2023-11-29 01:06:54,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 1213 transitions, 25904 flow [2023-11-29 01:07:22,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 1213 transitions, 25577 flow, removed 79 selfloop flow, removed 12 redundant places. [2023-11-29 01:07:22,641 INFO L231 Difference]: Finished difference. Result has 361 places, 801 transitions, 16140 flow [2023-11-29 01:07:22,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=13877, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=743, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=526, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=16140, PETRI_PLACES=361, PETRI_TRANSITIONS=801} [2023-11-29 01:07:22,642 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 315 predicate places. [2023-11-29 01:07:22,643 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 801 transitions, 16140 flow [2023-11-29 01:07:22,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:07:22,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:07:22,643 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:22,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 01:07:22,643 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:07:22,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:22,643 INFO L85 PathProgramCache]: Analyzing trace with hash -445324832, now seen corresponding path program 1 times [2023-11-29 01:07:22,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:22,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494144822] [2023-11-29 01:07:22,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:22,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:23,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:07:23,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:23,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494144822] [2023-11-29 01:07:23,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494144822] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:23,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:23,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 01:07:23,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352695652] [2023-11-29 01:07:23,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:23,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:07:23,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:23,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:07:23,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:07:23,042 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:07:23,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 801 transitions, 16140 flow. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:07:23,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:07:23,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:07:23,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:07:49,562 INFO L124 PetriNetUnfolderBase]: 31051/61793 cut-off events. [2023-11-29 01:07:49,562 INFO L125 PetriNetUnfolderBase]: For 2903091/2903099 co-relation queries the response was YES. [2023-11-29 01:07:50,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 529026 conditions, 61793 events. 31051/61793 cut-off events. For 2903091/2903099 co-relation queries the response was YES. Maximal size of possible extension queue 4236. Compared 694003 event pairs, 19254 based on Foata normal form. 192/61979 useless extension candidates. Maximal degree in co-relation 525470. Up to 43354 conditions per place. [2023-11-29 01:07:50,976 INFO L140 encePairwiseOnDemand]: 30/45 looper letters, 898 selfloop transitions, 202 changer transitions 36/1139 dead transitions. [2023-11-29 01:07:50,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 1139 transitions, 24999 flow [2023-11-29 01:07:50,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 01:07:50,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-29 01:07:50,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 365 transitions. [2023-11-29 01:07:50,977 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3526570048309179 [2023-11-29 01:07:50,977 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 365 transitions. [2023-11-29 01:07:50,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 365 transitions. [2023-11-29 01:07:50,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:07:50,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 365 transitions. [2023-11-29 01:07:50,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 15.869565217391305) internal successors, (365), 23 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:07:50,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 45.0) internal successors, (1080), 24 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:07:50,979 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 45.0) internal successors, (1080), 24 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:07:50,979 INFO L175 Difference]: Start difference. First operand has 361 places, 801 transitions, 16140 flow. Second operand 23 states and 365 transitions. [2023-11-29 01:07:50,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 1139 transitions, 24999 flow [2023-11-29 01:08:21,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 1139 transitions, 24507 flow, removed 190 selfloop flow, removed 6 redundant places. [2023-11-29 01:08:21,725 INFO L231 Difference]: Finished difference. Result has 383 places, 847 transitions, 17402 flow [2023-11-29 01:08:21,726 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=15720, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=800, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=610, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=17402, PETRI_PLACES=383, PETRI_TRANSITIONS=847} [2023-11-29 01:08:21,726 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 337 predicate places. [2023-11-29 01:08:21,726 INFO L495 AbstractCegarLoop]: Abstraction has has 383 places, 847 transitions, 17402 flow [2023-11-29 01:08:21,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:08:21,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:08:21,726 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:08:21,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 01:08:21,727 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:08:21,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:08:21,727 INFO L85 PathProgramCache]: Analyzing trace with hash -2036351762, now seen corresponding path program 2 times [2023-11-29 01:08:21,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:08:21,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860932561] [2023-11-29 01:08:21,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:21,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:08:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:08:22,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:08:22,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:08:22,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860932561] [2023-11-29 01:08:22,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860932561] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:08:22,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:08:22,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 01:08:22,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779373503] [2023-11-29 01:08:22,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:08:22,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:08:22,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:08:22,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:08:22,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:08:22,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:08:22,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 847 transitions, 17402 flow. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:08:22,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:08:22,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:08:22,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:08:52,805 INFO L124 PetriNetUnfolderBase]: 33940/67497 cut-off events. [2023-11-29 01:08:52,805 INFO L125 PetriNetUnfolderBase]: For 3168057/3168065 co-relation queries the response was YES. [2023-11-29 01:08:54,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 573883 conditions, 67497 events. 33940/67497 cut-off events. For 3168057/3168065 co-relation queries the response was YES. Maximal size of possible extension queue 4580. Compared 764646 event pairs, 19112 based on Foata normal form. 210/67703 useless extension candidates. Maximal degree in co-relation 570391. Up to 34518 conditions per place. [2023-11-29 01:08:54,778 INFO L140 encePairwiseOnDemand]: 30/45 looper letters, 805 selfloop transitions, 321 changer transitions 68/1197 dead transitions. [2023-11-29 01:08:54,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 1197 transitions, 26923 flow [2023-11-29 01:08:54,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 01:08:54,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-11-29 01:08:54,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 435 transitions. [2023-11-29 01:08:54,780 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34523809523809523 [2023-11-29 01:08:54,781 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 435 transitions. [2023-11-29 01:08:54,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 435 transitions. [2023-11-29 01:08:54,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:08:54,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 435 transitions. [2023-11-29 01:08:54,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 15.535714285714286) internal successors, (435), 28 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:08:54,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 45.0) internal successors, (1305), 29 states have internal predecessors, (1305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:08:54,785 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 45.0) internal successors, (1305), 29 states have internal predecessors, (1305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:08:54,786 INFO L175 Difference]: Start difference. First operand has 383 places, 847 transitions, 17402 flow. Second operand 28 states and 435 transitions. [2023-11-29 01:08:54,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 1197 transitions, 26923 flow [2023-11-29 01:09:31,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 1197 transitions, 26617 flow, removed 65 selfloop flow, removed 12 redundant places. [2023-11-29 01:09:31,543 INFO L231 Difference]: Finished difference. Result has 406 places, 892 transitions, 19120 flow [2023-11-29 01:09:31,544 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=17112, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=847, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=278, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=555, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=19120, PETRI_PLACES=406, PETRI_TRANSITIONS=892} [2023-11-29 01:09:31,544 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 360 predicate places. [2023-11-29 01:09:31,545 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 892 transitions, 19120 flow [2023-11-29 01:09:31,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:09:31,545 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:09:31,545 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:09:31,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 01:09:31,545 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:09:31,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:09:31,545 INFO L85 PathProgramCache]: Analyzing trace with hash -2141770515, now seen corresponding path program 2 times [2023-11-29 01:09:31,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:09:31,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077721415] [2023-11-29 01:09:31,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:09:31,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:09:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:09:32,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:09:32,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:09:32,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077721415] [2023-11-29 01:09:32,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077721415] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:09:32,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:09:32,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 01:09:32,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374671841] [2023-11-29 01:09:32,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:09:32,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 01:09:32,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:09:32,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 01:09:32,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:09:32,069 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:09:32,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 892 transitions, 19120 flow. Second operand has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:09:32,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:09:32,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:09:32,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:10:14,877 INFO L124 PetriNetUnfolderBase]: 45678/91933 cut-off events. [2023-11-29 01:10:14,877 INFO L125 PetriNetUnfolderBase]: For 4333964/4333972 co-relation queries the response was YES. [2023-11-29 01:10:17,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 742071 conditions, 91933 events. 45678/91933 cut-off events. For 4333964/4333972 co-relation queries the response was YES. Maximal size of possible extension queue 6293. Compared 1097470 event pairs, 20963 based on Foata normal form. 1151/93075 useless extension candidates. Maximal degree in co-relation 737312. Up to 33095 conditions per place. [2023-11-29 01:10:17,253 INFO L140 encePairwiseOnDemand]: 30/45 looper letters, 993 selfloop transitions, 319 changer transitions 46/1361 dead transitions. [2023-11-29 01:10:17,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 1361 transitions, 31465 flow [2023-11-29 01:10:17,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 01:10:17,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-29 01:10:17,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 393 transitions. [2023-11-29 01:10:17,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3638888888888889 [2023-11-29 01:10:17,255 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 393 transitions. [2023-11-29 01:10:17,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 393 transitions. [2023-11-29 01:10:17,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:10:17,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 393 transitions. [2023-11-29 01:10:17,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 16.375) internal successors, (393), 24 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:10:17,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 45.0) internal successors, (1125), 25 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:10:17,258 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 45.0) internal successors, (1125), 25 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:10:17,258 INFO L175 Difference]: Start difference. First operand has 406 places, 892 transitions, 19120 flow. Second operand 24 states and 393 transitions. [2023-11-29 01:10:17,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 1361 transitions, 31465 flow [2023-11-29 01:11:10,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 1361 transitions, 30886 flow, removed 202 selfloop flow, removed 10 redundant places. [2023-11-29 01:11:10,511 INFO L231 Difference]: Finished difference. Result has 423 places, 965 transitions, 21600 flow [2023-11-29 01:11:10,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=18625, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=892, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=247, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=615, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=21600, PETRI_PLACES=423, PETRI_TRANSITIONS=965} [2023-11-29 01:11:10,512 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 377 predicate places. [2023-11-29 01:11:10,513 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 965 transitions, 21600 flow [2023-11-29 01:11:10,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:11:10,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:11:10,513 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:11:10,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 01:11:10,513 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:11:10,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:11:10,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1587797349, now seen corresponding path program 2 times [2023-11-29 01:11:10,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:11:10,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929228695] [2023-11-29 01:11:10,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:11:10,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:11:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:10,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:11:10,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:11:10,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929228695] [2023-11-29 01:11:10,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929228695] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:11:10,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:11:10,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 01:11:10,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779791682] [2023-11-29 01:11:10,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:11:10,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:11:10,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:11:10,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:11:10,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:11:10,906 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:11:10,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 965 transitions, 21600 flow. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:11:10,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:11:10,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:11:10,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:11:53,599 INFO L124 PetriNetUnfolderBase]: 39481/80230 cut-off events. [2023-11-29 01:11:53,599 INFO L125 PetriNetUnfolderBase]: For 4046540/4046548 co-relation queries the response was YES. [2023-11-29 01:11:55,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 685854 conditions, 80230 events. 39481/80230 cut-off events. For 4046540/4046548 co-relation queries the response was YES. Maximal size of possible extension queue 5527. Compared 952030 event pairs, 24133 based on Foata normal form. 282/80503 useless extension candidates. Maximal degree in co-relation 682180. Up to 65171 conditions per place. [2023-11-29 01:11:55,905 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 890 selfloop transitions, 216 changer transitions 74/1183 dead transitions. [2023-11-29 01:11:55,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 1183 transitions, 28641 flow [2023-11-29 01:11:55,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 01:11:55,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-29 01:11:55,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 281 transitions. [2023-11-29 01:11:55,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3673202614379085 [2023-11-29 01:11:55,906 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 281 transitions. [2023-11-29 01:11:55,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 281 transitions. [2023-11-29 01:11:55,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:11:55,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 281 transitions. [2023-11-29 01:11:55,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 16.529411764705884) internal successors, (281), 17 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:11:55,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 45.0) internal successors, (810), 18 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:11:55,909 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 45.0) internal successors, (810), 18 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:11:55,909 INFO L175 Difference]: Start difference. First operand has 423 places, 965 transitions, 21600 flow. Second operand 17 states and 281 transitions. [2023-11-29 01:11:55,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 1183 transitions, 28641 flow [2023-11-29 01:12:43,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 1183 transitions, 28009 flow, removed 144 selfloop flow, removed 12 redundant places. [2023-11-29 01:12:43,376 INFO L231 Difference]: Finished difference. Result has 428 places, 965 transitions, 21670 flow [2023-11-29 01:12:43,377 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=20966, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=963, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=209, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=753, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=21670, PETRI_PLACES=428, PETRI_TRANSITIONS=965} [2023-11-29 01:12:43,377 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 382 predicate places. [2023-11-29 01:12:43,377 INFO L495 AbstractCegarLoop]: Abstraction has has 428 places, 965 transitions, 21670 flow [2023-11-29 01:12:43,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:43,378 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:12:43,378 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:43,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 01:12:43,378 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-29 01:12:43,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:43,378 INFO L85 PathProgramCache]: Analyzing trace with hash 85897787, now seen corresponding path program 3 times [2023-11-29 01:12:43,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:12:43,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033756072] [2023-11-29 01:12:43,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:43,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:12:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:43,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:12:43,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:12:43,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033756072] [2023-11-29 01:12:43,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033756072] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:12:43,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:12:43,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:12:43,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454435559] [2023-11-29 01:12:43,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:12:43,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:12:43,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:12:43,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:12:43,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:12:43,638 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-29 01:12:43,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 965 transitions, 21670 flow. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:12:43,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:12:43,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-29 01:12:43,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand