./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2-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_cf96dddc-2162-4fee-b2f4-1014fb4be958/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf96dddc-2162-4fee-b2f4-1014fb4be958/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf96dddc-2162-4fee-b2f4-1014fb4be958/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf96dddc-2162-4fee-b2f4-1014fb4be958/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf96dddc-2162-4fee-b2f4-1014fb4be958/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf96dddc-2162-4fee-b2f4-1014fb4be958/bin/uautomizer-verify-VRDe98Ueme --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 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:59:55,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:59:55,897 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf96dddc-2162-4fee-b2f4-1014fb4be958/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 11:59:55,902 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:59:55,908 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:59:55,956 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:59:55,957 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:59:55,957 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:59:55,959 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:59:55,967 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:59:55,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:59:55,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:59:55,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:59:55,971 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:59:55,971 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:59:55,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:59:55,972 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:59:55,973 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:59:55,973 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:59:55,974 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:59:55,974 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:59:55,975 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:59:55,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:59:55,976 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:59:55,976 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:59:55,977 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:59:55,977 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:59:55,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:59:55,978 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:59:55,979 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:59:55,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:59:55,981 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:59:55,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:59:55,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:59:55,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:59:55,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:59:55,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:59:55,982 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:59:55,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:59:55,983 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:59:55,983 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:59:55,983 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:59:55,983 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:59:55,984 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:59:55,984 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_cf96dddc-2162-4fee-b2f4-1014fb4be958/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf96dddc-2162-4fee-b2f4-1014fb4be958/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 [2023-11-26 11:59:56,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:59:56,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:59:56,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:59:56,342 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:59:56,342 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:59:56,344 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf96dddc-2162-4fee-b2f4-1014fb4be958/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2023-11-26 11:59:59,688 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:00,147 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:00,147 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf96dddc-2162-4fee-b2f4-1014fb4be958/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2023-11-26 12:00:00,196 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf96dddc-2162-4fee-b2f4-1014fb4be958/bin/uautomizer-verify-VRDe98Ueme/data/78bdbc2ab/6c563cf907f143f1898d1ed7a8bb30b6/FLAGd45307976 [2023-11-26 12:00:00,218 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf96dddc-2162-4fee-b2f4-1014fb4be958/bin/uautomizer-verify-VRDe98Ueme/data/78bdbc2ab/6c563cf907f143f1898d1ed7a8bb30b6 [2023-11-26 12:00:00,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:00,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:00,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:00,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:00,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:00,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:00" (1/1) ... [2023-11-26 12:00:00,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8d95b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:00, skipping insertion in model container [2023-11-26 12:00:00,232 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:00" (1/1) ... [2023-11-26 12:00:00,351 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:00,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:00,999 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:00:01,066 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:01,137 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:00:01,137 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:00:01,145 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:00:01,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:01 WrapperNode [2023-11-26 12:00:01,146 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:01,148 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:01,148 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:00:01,148 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:00:01,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:01" (1/1) ... [2023-11-26 12:00:01,197 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:01" (1/1) ... [2023-11-26 12:00:01,243 INFO L138 Inliner]: procedures = 246, calls = 48, calls flagged for inlining = 11, calls inlined = 14, statements flattened = 128 [2023-11-26 12:00:01,243 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:01,244 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:00:01,244 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:00:01,244 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:00:01,258 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:01" (1/1) ... [2023-11-26 12:00:01,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:01" (1/1) ... [2023-11-26 12:00:01,278 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:01" (1/1) ... [2023-11-26 12:00:01,304 INFO L175 MemorySlicer]: Split 21 memory accesses to 5 slices as follows [2, 3, 3, 2, 11]. 52 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 1, 1, 0, 0]. The 10 writes are split as follows [0, 1, 1, 2, 6]. [2023-11-26 12:00:01,304 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:01" (1/1) ... [2023-11-26 12:00:01,305 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:01" (1/1) ... [2023-11-26 12:00:01,332 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:01" (1/1) ... [2023-11-26 12:00:01,334 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:01" (1/1) ... [2023-11-26 12:00:01,355 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:01" (1/1) ... [2023-11-26 12:00:01,358 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:01" (1/1) ... [2023-11-26 12:00:01,365 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:00:01,366 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:00:01,366 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:00:01,366 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:00:01,383 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:01" (1/1) ... [2023-11-26 12:00:01,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:01,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf96dddc-2162-4fee-b2f4-1014fb4be958/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:01,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf96dddc-2162-4fee-b2f4-1014fb4be958/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:01,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf96dddc-2162-4fee-b2f4-1014fb4be958/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:00:01,459 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-26 12:00:01,460 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-26 12:00:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 12:00:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:00:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:00:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 12:00:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 12:00:01,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 12:00:01,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 12:00:01,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 12:00:01,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 12:00:01,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 12:00:01,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 12:00:01,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 12:00:01,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 12:00:01,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 12:00:01,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:00:01,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 12:00:01,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 12:00:01,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 12:00:01,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 12:00:01,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-26 12:00:01,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:00:01,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 12:00:01,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 12:00:01,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 12:00:01,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 12:00:01,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:00:01,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:00:01,469 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 12:00:01,814 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:00:01,816 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:00:02,112 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:00:02,346 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:00:02,346 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 12:00:02,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:02 BoogieIcfgContainer [2023-11-26 12:00:02,347 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:00:02,351 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:00:02,351 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:00:02,355 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:00:02,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:00:00" (1/3) ... [2023-11-26 12:00:02,356 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:02, skipping insertion in model container [2023-11-26 12:00:02,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:01" (2/3) ... [2023-11-26 12:00:02,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:02, skipping insertion in model container [2023-11-26 12:00:02,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:02" (3/3) ... [2023-11-26 12:00:02,360 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2023-11-26 12:00:02,369 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 12:00:02,379 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:00:02,380 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 12:00:02,380 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 12:00:02,451 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-26 12:00:02,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 82 flow [2023-11-26 12:00:02,542 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2023-11-26 12:00:02,542 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 12:00:02,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 37 events. 2/37 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 75 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 21. Up to 3 conditions per place. [2023-11-26 12:00:02,545 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 34 transitions, 82 flow [2023-11-26 12:00:02,552 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 28 transitions, 65 flow [2023-11-26 12:00:02,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:00:02,570 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;@6a98c4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:00:02,571 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-26 12:00:02,601 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 12:00:02,602 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2023-11-26 12:00:02,602 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:00:02,602 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:02,603 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:02,604 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:02,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:02,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1948794928, now seen corresponding path program 1 times [2023-11-26 12:00:02,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:02,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575711704] [2023-11-26 12:00:02,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:02,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:03,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:03,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:03,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575711704] [2023-11-26 12:00:03,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575711704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:03,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:03,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:00:03,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8941578] [2023-11-26 12:00:03,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:03,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:00:03,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:03,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:00:03,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:00:03,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-26 12:00:03,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 65 flow. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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) [2023-11-26 12:00:03,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:03,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-26 12:00:03,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:04,503 INFO L124 PetriNetUnfolderBase]: 769/1306 cut-off events. [2023-11-26 12:00:04,504 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2023-11-26 12:00:04,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2638 conditions, 1306 events. 769/1306 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 6477 event pairs, 347 based on Foata normal form. 0/1086 useless extension candidates. Maximal degree in co-relation 2568. Up to 850 conditions per place. [2023-11-26 12:00:04,519 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 63 selfloop transitions, 20 changer transitions 2/86 dead transitions. [2023-11-26 12:00:04,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 86 transitions, 366 flow [2023-11-26 12:00:04,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 12:00:04,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-26 12:00:04,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 129 transitions. [2023-11-26 12:00:04,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37941176470588234 [2023-11-26 12:00:04,535 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 129 transitions. [2023-11-26 12:00:04,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 129 transitions. [2023-11-26 12:00:04,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:04,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 129 transitions. [2023-11-26 12:00:04,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 12.9) internal successors, (129), 10 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:04,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 34.0) internal successors, (374), 11 states have internal predecessors, (374), 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) [2023-11-26 12:00:04,546 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 34.0) internal successors, (374), 11 states have internal predecessors, (374), 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) [2023-11-26 12:00:04,548 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 65 flow. Second operand 10 states and 129 transitions. [2023-11-26 12:00:04,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 86 transitions, 366 flow [2023-11-26 12:00:04,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 86 transitions, 355 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-26 12:00:04,558 INFO L231 Difference]: Finished difference. Result has 46 places, 48 transitions, 188 flow [2023-11-26 12:00:04,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=188, PETRI_PLACES=46, PETRI_TRANSITIONS=48} [2023-11-26 12:00:04,564 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 11 predicate places. [2023-11-26 12:00:04,564 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 48 transitions, 188 flow [2023-11-26 12:00:04,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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) [2023-11-26 12:00:04,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:04,565 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:04,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:00:04,565 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:04,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:04,566 INFO L85 PathProgramCache]: Analyzing trace with hash 172499394, now seen corresponding path program 1 times [2023-11-26 12:00:04,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:04,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775879127] [2023-11-26 12:00:04,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:04,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:05,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:05,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:05,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775879127] [2023-11-26 12:00:05,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775879127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:05,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:05,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:00:05,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184821495] [2023-11-26 12:00:05,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:05,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:00:05,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:05,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:00:05,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:00:05,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-26 12:00:05,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 48 transitions, 188 flow. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2023-11-26 12:00:05,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:05,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-26 12:00:05,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:06,051 INFO L124 PetriNetUnfolderBase]: 899/1554 cut-off events. [2023-11-26 12:00:06,051 INFO L125 PetriNetUnfolderBase]: For 782/782 co-relation queries the response was YES. [2023-11-26 12:00:06,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3993 conditions, 1554 events. 899/1554 cut-off events. For 782/782 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 8194 event pairs, 631 based on Foata normal form. 0/1372 useless extension candidates. Maximal degree in co-relation 2189. Up to 1126 conditions per place. [2023-11-26 12:00:06,070 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 64 selfloop transitions, 27 changer transitions 4/96 dead transitions. [2023-11-26 12:00:06,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 96 transitions, 550 flow [2023-11-26 12:00:06,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 12:00:06,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-26 12:00:06,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 125 transitions. [2023-11-26 12:00:06,079 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36764705882352944 [2023-11-26 12:00:06,079 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 125 transitions. [2023-11-26 12:00:06,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 125 transitions. [2023-11-26 12:00:06,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:06,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 125 transitions. [2023-11-26 12:00:06,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2023-11-26 12:00:06,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 34.0) internal successors, (374), 11 states have internal predecessors, (374), 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) [2023-11-26 12:00:06,092 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 34.0) internal successors, (374), 11 states have internal predecessors, (374), 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) [2023-11-26 12:00:06,093 INFO L175 Difference]: Start difference. First operand has 46 places, 48 transitions, 188 flow. Second operand 10 states and 125 transitions. [2023-11-26 12:00:06,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 96 transitions, 550 flow [2023-11-26 12:00:06,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 96 transitions, 548 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:00:06,104 INFO L231 Difference]: Finished difference. Result has 58 places, 64 transitions, 344 flow [2023-11-26 12:00:06,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=344, PETRI_PLACES=58, PETRI_TRANSITIONS=64} [2023-11-26 12:00:06,106 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 23 predicate places. [2023-11-26 12:00:06,106 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 64 transitions, 344 flow [2023-11-26 12:00:06,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2023-11-26 12:00:06,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:06,107 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:06,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:00:06,107 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:06,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:06,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1052295327, now seen corresponding path program 1 times [2023-11-26 12:00:06,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:06,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546576048] [2023-11-26 12:00:06,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:06,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:06,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:06,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:06,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546576048] [2023-11-26 12:00:06,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546576048] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:06,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:06,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 12:00:06,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542370025] [2023-11-26 12:00:06,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:06,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:00:06,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:06,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:00:06,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:00:06,865 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-26 12:00:06,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 64 transitions, 344 flow. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 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) [2023-11-26 12:00:06,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:06,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-26 12:00:06,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:07,808 INFO L124 PetriNetUnfolderBase]: 1186/2057 cut-off events. [2023-11-26 12:00:07,808 INFO L125 PetriNetUnfolderBase]: For 2001/2001 co-relation queries the response was YES. [2023-11-26 12:00:07,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6172 conditions, 2057 events. 1186/2057 cut-off events. For 2001/2001 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 11648 event pairs, 426 based on Foata normal form. 58/1973 useless extension candidates. Maximal degree in co-relation 4063. Up to 1127 conditions per place. [2023-11-26 12:00:07,829 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 77 selfloop transitions, 59 changer transitions 7/144 dead transitions. [2023-11-26 12:00:07,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 144 transitions, 995 flow [2023-11-26 12:00:07,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 12:00:07,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-26 12:00:07,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 171 transitions. [2023-11-26 12:00:07,835 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3592436974789916 [2023-11-26 12:00:07,835 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 171 transitions. [2023-11-26 12:00:07,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 171 transitions. [2023-11-26 12:00:07,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:07,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 171 transitions. [2023-11-26 12:00:07,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 12.214285714285714) internal successors, (171), 14 states have internal predecessors, (171), 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) [2023-11-26 12:00:07,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 34.0) internal successors, (510), 15 states have internal predecessors, (510), 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) [2023-11-26 12:00:07,842 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 34.0) internal successors, (510), 15 states have internal predecessors, (510), 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) [2023-11-26 12:00:07,842 INFO L175 Difference]: Start difference. First operand has 58 places, 64 transitions, 344 flow. Second operand 14 states and 171 transitions. [2023-11-26 12:00:07,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 144 transitions, 995 flow [2023-11-26 12:00:07,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 144 transitions, 995 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:00:07,859 INFO L231 Difference]: Finished difference. Result has 78 places, 95 transitions, 746 flow [2023-11-26 12:00:07,859 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=746, PETRI_PLACES=78, PETRI_TRANSITIONS=95} [2023-11-26 12:00:07,861 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 43 predicate places. [2023-11-26 12:00:07,861 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 95 transitions, 746 flow [2023-11-26 12:00:07,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 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) [2023-11-26 12:00:07,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:07,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:07,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:00:07,864 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:07,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:07,865 INFO L85 PathProgramCache]: Analyzing trace with hash 196988450, now seen corresponding path program 1 times [2023-11-26 12:00:07,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:07,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148053799] [2023-11-26 12:00:07,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:07,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:08,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:08,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:08,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148053799] [2023-11-26 12:00:08,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148053799] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:08,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:08,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:00:08,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690684322] [2023-11-26 12:00:08,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:08,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:00:08,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:08,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:00:08,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:00:08,546 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-26 12:00:08,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 95 transitions, 746 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2023-11-26 12:00:08,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:08,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-26 12:00:08,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:09,840 INFO L124 PetriNetUnfolderBase]: 1666/2949 cut-off events. [2023-11-26 12:00:09,840 INFO L125 PetriNetUnfolderBase]: For 8296/8300 co-relation queries the response was YES. [2023-11-26 12:00:09,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11200 conditions, 2949 events. 1666/2949 cut-off events. For 8296/8300 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 18551 event pairs, 876 based on Foata normal form. 76/2849 useless extension candidates. Maximal degree in co-relation 9782. Up to 1595 conditions per place. [2023-11-26 12:00:09,877 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 127 selfloop transitions, 94 changer transitions 9/231 dead transitions. [2023-11-26 12:00:09,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 231 transitions, 2223 flow [2023-11-26 12:00:09,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-26 12:00:09,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-26 12:00:09,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 202 transitions. [2023-11-26 12:00:09,880 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3494809688581315 [2023-11-26 12:00:09,880 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 202 transitions. [2023-11-26 12:00:09,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 202 transitions. [2023-11-26 12:00:09,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:09,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 202 transitions. [2023-11-26 12:00:09,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 11.882352941176471) internal successors, (202), 17 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) [2023-11-26 12:00:09,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 34.0) internal successors, (612), 18 states have internal predecessors, (612), 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) [2023-11-26 12:00:09,885 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 34.0) internal successors, (612), 18 states have internal predecessors, (612), 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) [2023-11-26 12:00:09,885 INFO L175 Difference]: Start difference. First operand has 78 places, 95 transitions, 746 flow. Second operand 17 states and 202 transitions. [2023-11-26 12:00:09,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 231 transitions, 2223 flow [2023-11-26 12:00:09,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 231 transitions, 2150 flow, removed 28 selfloop flow, removed 3 redundant places. [2023-11-26 12:00:09,927 INFO L231 Difference]: Finished difference. Result has 104 places, 158 transitions, 1636 flow [2023-11-26 12:00:09,928 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1636, PETRI_PLACES=104, PETRI_TRANSITIONS=158} [2023-11-26 12:00:09,930 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 69 predicate places. [2023-11-26 12:00:09,931 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 158 transitions, 1636 flow [2023-11-26 12:00:09,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2023-11-26 12:00:09,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:09,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:09,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:00:09,937 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:09,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:09,938 INFO L85 PathProgramCache]: Analyzing trace with hash 645641133, now seen corresponding path program 2 times [2023-11-26 12:00:09,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:09,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94974499] [2023-11-26 12:00:09,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:09,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:09,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:10,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:10,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:10,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94974499] [2023-11-26 12:00:10,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94974499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:10,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:10,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:00:10,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520448187] [2023-11-26 12:00:10,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:10,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:00:10,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:10,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:00:10,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:00:10,718 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-26 12:00:10,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 158 transitions, 1636 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2023-11-26 12:00:10,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:10,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-26 12:00:10,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:12,057 INFO L124 PetriNetUnfolderBase]: 1581/2834 cut-off events. [2023-11-26 12:00:12,058 INFO L125 PetriNetUnfolderBase]: For 14637/14641 co-relation queries the response was YES. [2023-11-26 12:00:12,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12989 conditions, 2834 events. 1581/2834 cut-off events. For 14637/14641 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 18070 event pairs, 792 based on Foata normal form. 56/2698 useless extension candidates. Maximal degree in co-relation 12615. Up to 1853 conditions per place. [2023-11-26 12:00:12,105 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 104 selfloop transitions, 90 changer transitions 12/207 dead transitions. [2023-11-26 12:00:12,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 207 transitions, 2429 flow [2023-11-26 12:00:12,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 12:00:12,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-26 12:00:12,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 150 transitions. [2023-11-26 12:00:12,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36764705882352944 [2023-11-26 12:00:12,108 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 150 transitions. [2023-11-26 12:00:12,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 150 transitions. [2023-11-26 12:00:12,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:12,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 150 transitions. [2023-11-26 12:00:12,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:12,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 34.0) internal successors, (442), 13 states have internal predecessors, (442), 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) [2023-11-26 12:00:12,111 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 34.0) internal successors, (442), 13 states have internal predecessors, (442), 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) [2023-11-26 12:00:12,111 INFO L175 Difference]: Start difference. First operand has 104 places, 158 transitions, 1636 flow. Second operand 12 states and 150 transitions. [2023-11-26 12:00:12,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 207 transitions, 2429 flow [2023-11-26 12:00:12,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 207 transitions, 2362 flow, removed 29 selfloop flow, removed 2 redundant places. [2023-11-26 12:00:12,177 INFO L231 Difference]: Finished difference. Result has 117 places, 164 transitions, 1908 flow [2023-11-26 12:00:12,178 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1581, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1908, PETRI_PLACES=117, PETRI_TRANSITIONS=164} [2023-11-26 12:00:12,179 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 82 predicate places. [2023-11-26 12:00:12,179 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 164 transitions, 1908 flow [2023-11-26 12:00:12,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2023-11-26 12:00:12,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:12,180 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:12,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:00:12,180 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:12,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:12,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1938723421, now seen corresponding path program 3 times [2023-11-26 12:00:12,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:12,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820828656] [2023-11-26 12:00:12,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:12,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:12,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:12,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:12,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820828656] [2023-11-26 12:00:12,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820828656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:12,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:12,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:00:12,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332108517] [2023-11-26 12:00:12,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:12,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:00:12,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:12,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:00:12,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:00:12,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-26 12:00:12,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 164 transitions, 1908 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2023-11-26 12:00:12,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:12,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-26 12:00:12,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:14,345 INFO L124 PetriNetUnfolderBase]: 1819/3242 cut-off events. [2023-11-26 12:00:14,345 INFO L125 PetriNetUnfolderBase]: For 18983/18985 co-relation queries the response was YES. [2023-11-26 12:00:14,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15538 conditions, 3242 events. 1819/3242 cut-off events. For 18983/18985 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 21037 event pairs, 822 based on Foata normal form. 74/3102 useless extension candidates. Maximal degree in co-relation 14619. Up to 2001 conditions per place. [2023-11-26 12:00:14,402 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 152 selfloop transitions, 87 changer transitions 10/250 dead transitions. [2023-11-26 12:00:14,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 250 transitions, 3148 flow [2023-11-26 12:00:14,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 12:00:14,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-26 12:00:14,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 178 transitions. [2023-11-26 12:00:14,405 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34901960784313724 [2023-11-26 12:00:14,405 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 178 transitions. [2023-11-26 12:00:14,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 178 transitions. [2023-11-26 12:00:14,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:14,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 178 transitions. [2023-11-26 12:00:14,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 11.866666666666667) internal successors, (178), 15 states have internal predecessors, (178), 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) [2023-11-26 12:00:14,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 34.0) internal successors, (544), 16 states have internal predecessors, (544), 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) [2023-11-26 12:00:14,409 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 34.0) internal successors, (544), 16 states have internal predecessors, (544), 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) [2023-11-26 12:00:14,409 INFO L175 Difference]: Start difference. First operand has 117 places, 164 transitions, 1908 flow. Second operand 15 states and 178 transitions. [2023-11-26 12:00:14,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 250 transitions, 3148 flow [2023-11-26 12:00:14,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 250 transitions, 2978 flow, removed 18 selfloop flow, removed 8 redundant places. [2023-11-26 12:00:14,516 INFO L231 Difference]: Finished difference. Result has 128 places, 191 transitions, 2329 flow [2023-11-26 12:00:14,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1764, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2329, PETRI_PLACES=128, PETRI_TRANSITIONS=191} [2023-11-26 12:00:14,521 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 93 predicate places. [2023-11-26 12:00:14,521 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 191 transitions, 2329 flow [2023-11-26 12:00:14,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2023-11-26 12:00:14,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:14,522 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:14,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 12:00:14,522 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:14,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:14,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1938723645, now seen corresponding path program 1 times [2023-11-26 12:00:14,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:14,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756736727] [2023-11-26 12:00:14,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:14,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:15,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:15,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:15,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756736727] [2023-11-26 12:00:15,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756736727] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:15,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:15,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:00:15,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421894862] [2023-11-26 12:00:15,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:15,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:00:15,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:15,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:00:15,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:00:15,185 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-26 12:00:15,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 191 transitions, 2329 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2023-11-26 12:00:15,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:15,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-26 12:00:15,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:17,243 INFO L124 PetriNetUnfolderBase]: 2143/3819 cut-off events. [2023-11-26 12:00:17,243 INFO L125 PetriNetUnfolderBase]: For 30685/30685 co-relation queries the response was YES. [2023-11-26 12:00:17,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20380 conditions, 3819 events. 2143/3819 cut-off events. For 30685/30685 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 25272 event pairs, 1166 based on Foata normal form. 76/3659 useless extension candidates. Maximal degree in co-relation 19234. Up to 2189 conditions per place. [2023-11-26 12:00:17,312 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 152 selfloop transitions, 129 changer transitions 8/290 dead transitions. [2023-11-26 12:00:17,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 290 transitions, 3895 flow [2023-11-26 12:00:17,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-26 12:00:17,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-26 12:00:17,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 224 transitions. [2023-11-26 12:00:17,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32941176470588235 [2023-11-26 12:00:17,315 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 224 transitions. [2023-11-26 12:00:17,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 224 transitions. [2023-11-26 12:00:17,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:17,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 224 transitions. [2023-11-26 12:00:17,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 11.2) internal successors, (224), 20 states have internal predecessors, (224), 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) [2023-11-26 12:00:17,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 34.0) internal successors, (714), 21 states have internal predecessors, (714), 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) [2023-11-26 12:00:17,320 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 34.0) internal successors, (714), 21 states have internal predecessors, (714), 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) [2023-11-26 12:00:17,320 INFO L175 Difference]: Start difference. First operand has 128 places, 191 transitions, 2329 flow. Second operand 20 states and 224 transitions. [2023-11-26 12:00:17,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 290 transitions, 3895 flow [2023-11-26 12:00:17,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 290 transitions, 3769 flow, removed 37 selfloop flow, removed 5 redundant places. [2023-11-26 12:00:17,448 INFO L231 Difference]: Finished difference. Result has 147 places, 227 transitions, 3113 flow [2023-11-26 12:00:17,449 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2234, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3113, PETRI_PLACES=147, PETRI_TRANSITIONS=227} [2023-11-26 12:00:17,449 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 112 predicate places. [2023-11-26 12:00:17,450 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 227 transitions, 3113 flow [2023-11-26 12:00:17,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2023-11-26 12:00:17,450 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:17,450 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:17,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:00:17,451 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:17,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:17,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1732069981, now seen corresponding path program 4 times [2023-11-26 12:00:17,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:17,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666971570] [2023-11-26 12:00:17,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:17,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:18,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:18,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:18,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666971570] [2023-11-26 12:00:18,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666971570] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:18,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:18,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:00:18,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332169029] [2023-11-26 12:00:18,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:18,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:00:18,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:18,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:00:18,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:00:18,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-26 12:00:18,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 227 transitions, 3113 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2023-11-26 12:00:18,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:18,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-26 12:00:18,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:19,956 INFO L124 PetriNetUnfolderBase]: 2099/3781 cut-off events. [2023-11-26 12:00:19,957 INFO L125 PetriNetUnfolderBase]: For 36614/36614 co-relation queries the response was YES. [2023-11-26 12:00:19,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21773 conditions, 3781 events. 2099/3781 cut-off events. For 36614/36614 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 25585 event pairs, 989 based on Foata normal form. 72/3633 useless extension candidates. Maximal degree in co-relation 20782. Up to 2437 conditions per place. [2023-11-26 12:00:20,007 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 214 selfloop transitions, 83 changer transitions 13/311 dead transitions. [2023-11-26 12:00:20,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 311 transitions, 4674 flow [2023-11-26 12:00:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 12:00:20,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-26 12:00:20,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 174 transitions. [2023-11-26 12:00:20,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3411764705882353 [2023-11-26 12:00:20,010 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 174 transitions. [2023-11-26 12:00:20,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 174 transitions. [2023-11-26 12:00:20,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:20,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 174 transitions. [2023-11-26 12:00:20,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 11.6) internal successors, (174), 15 states have internal predecessors, (174), 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) [2023-11-26 12:00:20,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 34.0) internal successors, (544), 16 states have internal predecessors, (544), 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) [2023-11-26 12:00:20,014 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 34.0) internal successors, (544), 16 states have internal predecessors, (544), 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) [2023-11-26 12:00:20,014 INFO L175 Difference]: Start difference. First operand has 147 places, 227 transitions, 3113 flow. Second operand 15 states and 174 transitions. [2023-11-26 12:00:20,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 311 transitions, 4674 flow [2023-11-26 12:00:20,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 311 transitions, 4445 flow, removed 22 selfloop flow, removed 10 redundant places. [2023-11-26 12:00:20,218 INFO L231 Difference]: Finished difference. Result has 156 places, 248 transitions, 3500 flow [2023-11-26 12:00:20,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2907, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3500, PETRI_PLACES=156, PETRI_TRANSITIONS=248} [2023-11-26 12:00:20,221 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 121 predicate places. [2023-11-26 12:00:20,221 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 248 transitions, 3500 flow [2023-11-26 12:00:20,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2023-11-26 12:00:20,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:20,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:20,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 12:00:20,223 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:20,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:20,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1933361041, now seen corresponding path program 5 times [2023-11-26 12:00:20,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:20,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598667557] [2023-11-26 12:00:20,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:20,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:20,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:20,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:20,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598667557] [2023-11-26 12:00:20,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598667557] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:20,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:20,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:00:20,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628129118] [2023-11-26 12:00:20,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:20,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:00:20,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:20,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:00:20,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:00:20,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-26 12:00:20,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 248 transitions, 3500 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2023-11-26 12:00:20,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:20,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-26 12:00:20,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:22,701 INFO L124 PetriNetUnfolderBase]: 2118/3883 cut-off events. [2023-11-26 12:00:22,701 INFO L125 PetriNetUnfolderBase]: For 47020/47022 co-relation queries the response was YES. [2023-11-26 12:00:22,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23283 conditions, 3883 events. 2118/3883 cut-off events. For 47020/47022 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 26882 event pairs, 1128 based on Foata normal form. 72/3743 useless extension candidates. Maximal degree in co-relation 22083. Up to 2240 conditions per place. [2023-11-26 12:00:22,743 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 166 selfloop transitions, 133 changer transitions 12/312 dead transitions. [2023-11-26 12:00:22,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 312 transitions, 4716 flow [2023-11-26 12:00:22,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-26 12:00:22,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-26 12:00:22,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 210 transitions. [2023-11-26 12:00:22,746 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32507739938080493 [2023-11-26 12:00:22,746 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 210 transitions. [2023-11-26 12:00:22,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 210 transitions. [2023-11-26 12:00:22,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:22,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 210 transitions. [2023-11-26 12:00:22,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 11.052631578947368) internal successors, (210), 19 states have internal predecessors, (210), 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) [2023-11-26 12:00:22,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 34.0) internal successors, (680), 20 states have internal predecessors, (680), 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) [2023-11-26 12:00:22,750 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 34.0) internal successors, (680), 20 states have internal predecessors, (680), 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) [2023-11-26 12:00:22,750 INFO L175 Difference]: Start difference. First operand has 156 places, 248 transitions, 3500 flow. Second operand 19 states and 210 transitions. [2023-11-26 12:00:22,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 312 transitions, 4716 flow [2023-11-26 12:00:23,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 312 transitions, 4505 flow, removed 40 selfloop flow, removed 10 redundant places. [2023-11-26 12:00:23,015 INFO L231 Difference]: Finished difference. Result has 169 places, 253 transitions, 3747 flow [2023-11-26 12:00:23,016 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3310, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3747, PETRI_PLACES=169, PETRI_TRANSITIONS=253} [2023-11-26 12:00:23,017 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 134 predicate places. [2023-11-26 12:00:23,018 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 253 transitions, 3747 flow [2023-11-26 12:00:23,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2023-11-26 12:00:23,018 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:23,018 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:23,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 12:00:23,019 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:23,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:23,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1732070205, now seen corresponding path program 2 times [2023-11-26 12:00:23,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:23,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121527653] [2023-11-26 12:00:23,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:23,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:23,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:23,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:23,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121527653] [2023-11-26 12:00:23,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121527653] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:23,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:23,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:00:23,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645939084] [2023-11-26 12:00:23,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:23,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:00:23,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:23,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:00:23,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:00:23,643 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-26 12:00:23,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 253 transitions, 3747 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2023-11-26 12:00:23,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:23,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-26 12:00:23,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:25,382 INFO L124 PetriNetUnfolderBase]: 2224/4071 cut-off events. [2023-11-26 12:00:25,382 INFO L125 PetriNetUnfolderBase]: For 52247/52247 co-relation queries the response was YES. [2023-11-26 12:00:25,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25331 conditions, 4071 events. 2224/4071 cut-off events. For 52247/52247 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 28322 event pairs, 1095 based on Foata normal form. 52/3895 useless extension candidates. Maximal degree in co-relation 24384. Up to 2626 conditions per place. [2023-11-26 12:00:25,435 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 145 selfloop transitions, 183 changer transitions 11/340 dead transitions. [2023-11-26 12:00:25,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 340 transitions, 5564 flow [2023-11-26 12:00:25,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-26 12:00:25,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-26 12:00:25,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 195 transitions. [2023-11-26 12:00:25,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31862745098039214 [2023-11-26 12:00:25,440 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 195 transitions. [2023-11-26 12:00:25,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 195 transitions. [2023-11-26 12:00:25,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:25,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 195 transitions. [2023-11-26 12:00:25,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 10.833333333333334) internal successors, (195), 18 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) [2023-11-26 12:00:25,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 34.0) internal successors, (646), 19 states have internal predecessors, (646), 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) [2023-11-26 12:00:25,445 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 34.0) internal successors, (646), 19 states have internal predecessors, (646), 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) [2023-11-26 12:00:25,445 INFO L175 Difference]: Start difference. First operand has 169 places, 253 transitions, 3747 flow. Second operand 18 states and 195 transitions. [2023-11-26 12:00:25,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 340 transitions, 5564 flow [2023-11-26 12:00:25,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 340 transitions, 5236 flow, removed 50 selfloop flow, removed 15 redundant places. [2023-11-26 12:00:25,858 INFO L231 Difference]: Finished difference. Result has 176 places, 281 transitions, 4532 flow [2023-11-26 12:00:25,859 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3495, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4532, PETRI_PLACES=176, PETRI_TRANSITIONS=281} [2023-11-26 12:00:25,860 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 141 predicate places. [2023-11-26 12:00:25,860 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 281 transitions, 4532 flow [2023-11-26 12:00:25,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2023-11-26 12:00:25,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:25,861 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:25,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 12:00:25,861 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:25,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:25,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1739220044, now seen corresponding path program 2 times [2023-11-26 12:00:25,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:25,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713089418] [2023-11-26 12:00:25,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:25,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:26,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:26,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:26,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713089418] [2023-11-26 12:00:26,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713089418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:26,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:26,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:00:26,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436370617] [2023-11-26 12:00:26,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:26,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:00:26,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:26,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:00:26,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:00:26,425 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-26 12:00:26,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 281 transitions, 4532 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2023-11-26 12:00:26,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:26,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-26 12:00:26,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:28,572 INFO L124 PetriNetUnfolderBase]: 2202/4070 cut-off events. [2023-11-26 12:00:28,572 INFO L125 PetriNetUnfolderBase]: For 59442/59442 co-relation queries the response was YES. [2023-11-26 12:00:28,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26377 conditions, 4070 events. 2202/4070 cut-off events. For 59442/59442 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 28526 event pairs, 1227 based on Foata normal form. 52/3900 useless extension candidates. Maximal degree in co-relation 25471. Up to 2353 conditions per place. [2023-11-26 12:00:28,617 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 152 selfloop transitions, 186 changer transitions 9/348 dead transitions. [2023-11-26 12:00:28,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 348 transitions, 5878 flow [2023-11-26 12:00:28,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-26 12:00:28,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-11-26 12:00:28,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 231 transitions. [2023-11-26 12:00:28,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3088235294117647 [2023-11-26 12:00:28,624 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 231 transitions. [2023-11-26 12:00:28,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 231 transitions. [2023-11-26 12:00:28,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:28,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 231 transitions. [2023-11-26 12:00:28,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 10.5) internal successors, (231), 22 states have internal predecessors, (231), 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) [2023-11-26 12:00:28,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 34.0) internal successors, (782), 23 states have internal predecessors, (782), 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) [2023-11-26 12:00:28,628 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 34.0) internal successors, (782), 23 states have internal predecessors, (782), 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) [2023-11-26 12:00:28,628 INFO L175 Difference]: Start difference. First operand has 176 places, 281 transitions, 4532 flow. Second operand 22 states and 231 transitions. [2023-11-26 12:00:28,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 348 transitions, 5878 flow [2023-11-26 12:00:28,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 348 transitions, 5684 flow, removed 60 selfloop flow, removed 7 redundant places. [2023-11-26 12:00:28,972 INFO L231 Difference]: Finished difference. Result has 193 places, 287 transitions, 4905 flow [2023-11-26 12:00:28,973 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=4360, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=180, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=4905, PETRI_PLACES=193, PETRI_TRANSITIONS=287} [2023-11-26 12:00:28,974 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 158 predicate places. [2023-11-26 12:00:28,974 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 287 transitions, 4905 flow [2023-11-26 12:00:28,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2023-11-26 12:00:28,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:28,975 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:28,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 12:00:28,975 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:28,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:28,976 INFO L85 PathProgramCache]: Analyzing trace with hash -149094018, now seen corresponding path program 1 times [2023-11-26 12:00:28,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:28,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627107841] [2023-11-26 12:00:28,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:28,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:29,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:29,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:29,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627107841] [2023-11-26 12:00:29,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627107841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:29,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:29,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 12:00:29,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629390740] [2023-11-26 12:00:29,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:29,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 12:00:29,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:29,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 12:00:29,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:00:29,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-26 12:00:29,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 287 transitions, 4905 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2023-11-26 12:00:29,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:29,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-26 12:00:29,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:31,325 INFO L124 PetriNetUnfolderBase]: 2140/3935 cut-off events. [2023-11-26 12:00:31,326 INFO L125 PetriNetUnfolderBase]: For 56906/56908 co-relation queries the response was YES. [2023-11-26 12:00:31,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26345 conditions, 3935 events. 2140/3935 cut-off events. For 56906/56908 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 27344 event pairs, 1026 based on Foata normal form. 0/3713 useless extension candidates. Maximal degree in co-relation 24672. Up to 3324 conditions per place. [2023-11-26 12:00:31,373 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 288 selfloop transitions, 73 changer transitions 5/367 dead transitions. [2023-11-26 12:00:31,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 367 transitions, 6438 flow [2023-11-26 12:00:31,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-26 12:00:31,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-26 12:00:31,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 178 transitions. [2023-11-26 12:00:31,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3272058823529412 [2023-11-26 12:00:31,376 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 178 transitions. [2023-11-26 12:00:31,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 178 transitions. [2023-11-26 12:00:31,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:31,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 178 transitions. [2023-11-26 12:00:31,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 11.125) internal successors, (178), 16 states have internal predecessors, (178), 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) [2023-11-26 12:00:31,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 34.0) internal successors, (578), 17 states have internal predecessors, (578), 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) [2023-11-26 12:00:31,379 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 34.0) internal successors, (578), 17 states have internal predecessors, (578), 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) [2023-11-26 12:00:31,379 INFO L175 Difference]: Start difference. First operand has 193 places, 287 transitions, 4905 flow. Second operand 16 states and 178 transitions. [2023-11-26 12:00:31,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 367 transitions, 6438 flow [2023-11-26 12:00:31,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 367 transitions, 6147 flow, removed 30 selfloop flow, removed 13 redundant places. [2023-11-26 12:00:31,789 INFO L231 Difference]: Finished difference. Result has 205 places, 310 transitions, 5290 flow [2023-11-26 12:00:31,789 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=4614, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=5290, PETRI_PLACES=205, PETRI_TRANSITIONS=310} [2023-11-26 12:00:31,790 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 170 predicate places. [2023-11-26 12:00:31,790 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 310 transitions, 5290 flow [2023-11-26 12:00:31,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2023-11-26 12:00:31,790 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:31,790 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:31,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 12:00:31,791 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:31,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:31,791 INFO L85 PathProgramCache]: Analyzing trace with hash -149094017, now seen corresponding path program 1 times [2023-11-26 12:00:31,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:31,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362982917] [2023-11-26 12:00:31,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:31,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:32,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:32,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:32,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362982917] [2023-11-26 12:00:32,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362982917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:32,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:32,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 12:00:32,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249218715] [2023-11-26 12:00:32,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:32,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 12:00:32,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:32,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 12:00:32,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:00:32,510 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-26 12:00:32,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 310 transitions, 5290 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2023-11-26 12:00:32,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:32,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-26 12:00:32,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:34,187 INFO L124 PetriNetUnfolderBase]: 2178/4055 cut-off events. [2023-11-26 12:00:34,187 INFO L125 PetriNetUnfolderBase]: For 81586/81586 co-relation queries the response was YES. [2023-11-26 12:00:34,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27721 conditions, 4055 events. 2178/4055 cut-off events. For 81586/81586 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 28541 event pairs, 657 based on Foata normal form. 80/4023 useless extension candidates. Maximal degree in co-relation 26969. Up to 2046 conditions per place. [2023-11-26 12:00:34,229 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 236 selfloop transitions, 171 changer transitions 23/431 dead transitions. [2023-11-26 12:00:34,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 431 transitions, 7483 flow [2023-11-26 12:00:34,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-26 12:00:34,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-11-26 12:00:34,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 233 transitions. [2023-11-26 12:00:34,231 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3114973262032086 [2023-11-26 12:00:34,232 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 233 transitions. [2023-11-26 12:00:34,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 233 transitions. [2023-11-26 12:00:34,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:34,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 233 transitions. [2023-11-26 12:00:34,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 10.590909090909092) internal successors, (233), 22 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) [2023-11-26 12:00:34,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 34.0) internal successors, (782), 23 states have internal predecessors, (782), 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) [2023-11-26 12:00:34,235 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 34.0) internal successors, (782), 23 states have internal predecessors, (782), 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) [2023-11-26 12:00:34,236 INFO L175 Difference]: Start difference. First operand has 205 places, 310 transitions, 5290 flow. Second operand 22 states and 233 transitions. [2023-11-26 12:00:34,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 431 transitions, 7483 flow [2023-11-26 12:00:34,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 431 transitions, 7126 flow, removed 142 selfloop flow, removed 5 redundant places. [2023-11-26 12:00:34,668 INFO L231 Difference]: Finished difference. Result has 225 places, 340 transitions, 5966 flow [2023-11-26 12:00:34,669 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=4921, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=5966, PETRI_PLACES=225, PETRI_TRANSITIONS=340} [2023-11-26 12:00:34,669 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 190 predicate places. [2023-11-26 12:00:34,670 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 340 transitions, 5966 flow [2023-11-26 12:00:34,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2023-11-26 12:00:34,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:34,670 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:34,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 12:00:34,670 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:34,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:34,671 INFO L85 PathProgramCache]: Analyzing trace with hash 185247492, now seen corresponding path program 2 times [2023-11-26 12:00:34,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:34,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727376233] [2023-11-26 12:00:34,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:34,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:35,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:35,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:35,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727376233] [2023-11-26 12:00:35,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727376233] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:35,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:35,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 12:00:35,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952197732] [2023-11-26 12:00:35,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:35,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:00:35,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:35,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:00:35,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:00:35,096 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-26 12:00:35,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 340 transitions, 5966 flow. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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) [2023-11-26 12:00:35,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:35,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-26 12:00:35,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:37,186 INFO L124 PetriNetUnfolderBase]: 2047/3992 cut-off events. [2023-11-26 12:00:37,186 INFO L125 PetriNetUnfolderBase]: For 95292/95292 co-relation queries the response was YES. [2023-11-26 12:00:37,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28652 conditions, 3992 events. 2047/3992 cut-off events. For 95292/95292 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 29725 event pairs, 389 based on Foata normal form. 42/3908 useless extension candidates. Maximal degree in co-relation 27591. Up to 1232 conditions per place. [2023-11-26 12:00:37,251 INFO L140 encePairwiseOnDemand]: 24/34 looper letters, 350 selfloop transitions, 114 changer transitions 9/474 dead transitions. [2023-11-26 12:00:37,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 474 transitions, 8545 flow [2023-11-26 12:00:37,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-26 12:00:37,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-26 12:00:37,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 234 transitions. [2023-11-26 12:00:37,253 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38235294117647056 [2023-11-26 12:00:37,253 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 234 transitions. [2023-11-26 12:00:37,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 234 transitions. [2023-11-26 12:00:37,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:37,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 234 transitions. [2023-11-26 12:00:37,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 13.0) internal successors, (234), 18 states have internal predecessors, (234), 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) [2023-11-26 12:00:37,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 34.0) internal successors, (646), 19 states have internal predecessors, (646), 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) [2023-11-26 12:00:37,258 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 34.0) internal successors, (646), 19 states have internal predecessors, (646), 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) [2023-11-26 12:00:37,258 INFO L175 Difference]: Start difference. First operand has 225 places, 340 transitions, 5966 flow. Second operand 18 states and 234 transitions. [2023-11-26 12:00:37,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 474 transitions, 8545 flow [2023-11-26 12:00:38,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 474 transitions, 8176 flow, removed 134 selfloop flow, removed 12 redundant places. [2023-11-26 12:00:38,071 INFO L231 Difference]: Finished difference. Result has 236 places, 359 transitions, 6409 flow [2023-11-26 12:00:38,072 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=5735, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6409, PETRI_PLACES=236, PETRI_TRANSITIONS=359} [2023-11-26 12:00:38,072 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 201 predicate places. [2023-11-26 12:00:38,073 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 359 transitions, 6409 flow [2023-11-26 12:00:38,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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) [2023-11-26 12:00:38,073 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:38,073 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:38,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 12:00:38,073 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:38,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:38,074 INFO L85 PathProgramCache]: Analyzing trace with hash 183373542, now seen corresponding path program 3 times [2023-11-26 12:00:38,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:38,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376170647] [2023-11-26 12:00:38,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:38,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:38,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:38,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:38,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376170647] [2023-11-26 12:00:38,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376170647] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:38,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:38,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 12:00:38,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678221755] [2023-11-26 12:00:38,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:38,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 12:00:38,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:38,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 12:00:38,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:00:38,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2023-11-26 12:00:38,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 359 transitions, 6409 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2023-11-26 12:00:38,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:38,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2023-11-26 12:00:38,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:00:40,814 INFO L124 PetriNetUnfolderBase]: 2219/4324 cut-off events. [2023-11-26 12:00:40,814 INFO L125 PetriNetUnfolderBase]: For 96032/96032 co-relation queries the response was YES. [2023-11-26 12:00:40,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30604 conditions, 4324 events. 2219/4324 cut-off events. For 96032/96032 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 33048 event pairs, 958 based on Foata normal form. 28/4226 useless extension candidates. Maximal degree in co-relation 30234. Up to 3234 conditions per place. [2023-11-26 12:00:40,891 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 361 selfloop transitions, 93 changer transitions 8/463 dead transitions. [2023-11-26 12:00:40,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 463 transitions, 8476 flow [2023-11-26 12:00:40,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-26 12:00:40,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-26 12:00:40,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 213 transitions. [2023-11-26 12:00:40,893 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32972136222910214 [2023-11-26 12:00:40,894 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 213 transitions. [2023-11-26 12:00:40,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 213 transitions. [2023-11-26 12:00:40,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:40,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 213 transitions. [2023-11-26 12:00:40,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 11.210526315789474) internal successors, (213), 19 states have internal predecessors, (213), 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) [2023-11-26 12:00:40,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 34.0) internal successors, (680), 20 states have internal predecessors, (680), 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) [2023-11-26 12:00:40,897 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 34.0) internal successors, (680), 20 states have internal predecessors, (680), 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) [2023-11-26 12:00:40,898 INFO L175 Difference]: Start difference. First operand has 236 places, 359 transitions, 6409 flow. Second operand 19 states and 213 transitions. [2023-11-26 12:00:40,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 463 transitions, 8476 flow [2023-11-26 12:00:41,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 463 transitions, 8165 flow, removed 122 selfloop flow, removed 3 redundant places. [2023-11-26 12:00:41,856 INFO L231 Difference]: Finished difference. Result has 260 places, 385 transitions, 6996 flow [2023-11-26 12:00:41,857 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=6163, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=6996, PETRI_PLACES=260, PETRI_TRANSITIONS=385} [2023-11-26 12:00:41,858 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 225 predicate places. [2023-11-26 12:00:41,858 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 385 transitions, 6996 flow [2023-11-26 12:00:41,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2023-11-26 12:00:41,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:00:41,859 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:41,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 12:00:41,859 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 12:00:41,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:41,860 INFO L85 PathProgramCache]: Analyzing trace with hash -276223331, now seen corresponding path program 1 times [2023-11-26 12:00:41,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:41,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60913198] [2023-11-26 12:00:41,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:41,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:41,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:41,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:41,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60913198] [2023-11-26 12:00:41,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60913198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:41,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:41,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:00:41,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208619057] [2023-11-26 12:00:41,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:41,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:41,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:41,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:41,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:41,988 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 34 [2023-11-26 12:00:41,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 385 transitions, 6996 flow. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-11-26 12:00:41,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:00:41,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 34 [2023-11-26 12:00:41,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand