./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_5-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_934d98cb-1d90-4517-94e9-dada80b832b7/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934d98cb-1d90-4517-94e9-dada80b832b7/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_934d98cb-1d90-4517-94e9-dada80b832b7/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934d98cb-1d90-4517-94e9-dada80b832b7/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934d98cb-1d90-4517-94e9-dada80b832b7/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_934d98cb-1d90-4517-94e9-dada80b832b7/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 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:56:14,336 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:56:14,464 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934d98cb-1d90-4517-94e9-dada80b832b7/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 11:56:14,473 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:56:14,474 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:56:14,520 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:56:14,520 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:56:14,521 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:56:14,522 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:56:14,528 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:56:14,528 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:56:14,529 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:56:14,530 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:56:14,532 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:56:14,533 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:56:14,533 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:56:14,534 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:56:14,534 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:56:14,535 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:56:14,535 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:56:14,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:56:14,538 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:56:14,538 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:56:14,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:56:14,539 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:56:14,539 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:56:14,540 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:56:14,540 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:56:14,541 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:56:14,542 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:56:14,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:56:14,543 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:56:14,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:56:14,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:56:14,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:56:14,545 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:56:14,545 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:56:14,545 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:56:14,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:56:14,546 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:56:14,546 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:56:14,546 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:56:14,546 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:56:14,547 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:56:14,547 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_934d98cb-1d90-4517-94e9-dada80b832b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934d98cb-1d90-4517-94e9-dada80b832b7/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c93f158b090fed5438343046820ebde54acd91fe2fe757fc7dc28475dc42a7e [2023-11-26 11:56:14,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:56:14,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:56:14,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:56:14,972 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:56:14,977 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:56:14,979 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934d98cb-1d90-4517-94e9-dada80b832b7/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-26 11:56:18,121 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:56:18,508 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:56:18,509 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934d98cb-1d90-4517-94e9-dada80b832b7/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-26 11:56:18,563 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934d98cb-1d90-4517-94e9-dada80b832b7/bin/uautomizer-verify-VRDe98Ueme/data/c3252111c/844035f812cf447e8764a077a2a0de6c/FLAGe9aecc3ad [2023-11-26 11:56:18,578 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934d98cb-1d90-4517-94e9-dada80b832b7/bin/uautomizer-verify-VRDe98Ueme/data/c3252111c/844035f812cf447e8764a077a2a0de6c [2023-11-26 11:56:18,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:56:18,585 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:56:18,589 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:56:18,589 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:56:18,617 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:56:18,618 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:56:18" (1/1) ... [2023-11-26 11:56:18,619 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24dab363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:18, skipping insertion in model container [2023-11-26 11:56:18,619 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:56:18" (1/1) ... [2023-11-26 11:56:18,745 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:56:19,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:56:19,412 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:56:19,476 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:56:19,536 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:56:19,536 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:56:19,544 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:56:19,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:19 WrapperNode [2023-11-26 11:56:19,545 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:56:19,547 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:56:19,547 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:56:19,547 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:56:19,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:19" (1/1) ... [2023-11-26 11:56:19,586 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:19" (1/1) ... [2023-11-26 11:56:19,641 INFO L138 Inliner]: procedures = 248, calls = 64, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 162 [2023-11-26 11:56:19,641 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:56:19,642 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:56:19,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:56:19,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:56:19,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:19" (1/1) ... [2023-11-26 11:56:19,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:19" (1/1) ... [2023-11-26 11:56:19,679 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:19" (1/1) ... [2023-11-26 11:56:19,714 INFO L175 MemorySlicer]: Split 25 memory accesses to 5 slices as follows [2, 3, 3, 2, 15]. 60 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 1, 1, 0, 0]. The 12 writes are split as follows [0, 1, 1, 2, 8]. [2023-11-26 11:56:19,715 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:19" (1/1) ... [2023-11-26 11:56:19,716 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:19" (1/1) ... [2023-11-26 11:56:19,743 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:19" (1/1) ... [2023-11-26 11:56:19,746 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:19" (1/1) ... [2023-11-26 11:56:19,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:19" (1/1) ... [2023-11-26 11:56:19,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:19" (1/1) ... [2023-11-26 11:56:19,763 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:56:19,764 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:56:19,765 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:56:19,765 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:56:19,766 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:19" (1/1) ... [2023-11-26 11:56:19,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:56:19,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934d98cb-1d90-4517-94e9-dada80b832b7/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:19,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934d98cb-1d90-4517-94e9-dada80b832b7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:19,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934d98cb-1d90-4517-94e9-dada80b832b7/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:56:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-26 11:56:19,858 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-26 11:56:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 11:56:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:56:19,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:56:19,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 11:56:19,859 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 11:56:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:56:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:56:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:56:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:56:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 11:56:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:56:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:56:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:56:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:56:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 11:56:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 11:56:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:56:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 11:56:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 11:56:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 11:56:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 11:56:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-26 11:56:19,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:56:19,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:56:19,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:56:19,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:56:19,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 11:56:19,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:56:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:56:19,872 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 11:56:20,262 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:56:20,264 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:56:20,642 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:56:21,031 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:56:21,031 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:56:21,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:56:21 BoogieIcfgContainer [2023-11-26 11:56:21,032 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:56:21,035 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:56:21,035 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:56:21,039 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:56:21,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:56:18" (1/3) ... [2023-11-26 11:56:21,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212171d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:56:21, skipping insertion in model container [2023-11-26 11:56:21,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:19" (2/3) ... [2023-11-26 11:56:21,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212171d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:56:21, skipping insertion in model container [2023-11-26 11:56:21,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:56:21" (3/3) ... [2023-11-26 11:56:21,043 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2023-11-26 11:56:21,081 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:56:21,093 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:56:21,105 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 11:56:21,105 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:56:21,159 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-26 11:56:21,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 45 transitions, 104 flow [2023-11-26 11:56:21,233 INFO L124 PetriNetUnfolderBase]: 2/48 cut-off events. [2023-11-26 11:56:21,233 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 11:56:21,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 48 events. 2/48 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 76 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 24. Up to 3 conditions per place. [2023-11-26 11:56:21,236 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 45 transitions, 104 flow [2023-11-26 11:56:21,240 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 39 transitions, 87 flow [2023-11-26 11:56:21,252 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:56:21,263 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;@6e367e39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:56:21,264 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-26 11:56:21,281 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:56:21,281 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2023-11-26 11:56:21,282 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:56:21,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:21,286 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:21,286 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 11:56:21,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:21,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1689737507, now seen corresponding path program 1 times [2023-11-26 11:56:21,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:21,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140662547] [2023-11-26 11:56:21,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:21,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:22,676 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 11:56:22,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:22,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140662547] [2023-11-26 11:56:22,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140662547] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:22,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:22,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:56:22,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908585964] [2023-11-26 11:56:22,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:22,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:56:22,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:22,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:56:22,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:56:22,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 11:56:22,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 87 flow. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:22,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:22,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 11:56:22,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:23,666 INFO L124 PetriNetUnfolderBase]: 1309/2237 cut-off events. [2023-11-26 11:56:23,667 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2023-11-26 11:56:23,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4474 conditions, 2237 events. 1309/2237 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 11691 event pairs, 576 based on Foata normal form. 0/1949 useless extension candidates. Maximal degree in co-relation 4382. Up to 1340 conditions per place. [2023-11-26 11:56:23,697 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 85 selfloop transitions, 20 changer transitions 3/112 dead transitions. [2023-11-26 11:56:23,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 112 transitions, 464 flow [2023-11-26 11:56:23,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 11:56:23,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-26 11:56:23,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 182 transitions. [2023-11-26 11:56:23,715 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40444444444444444 [2023-11-26 11:56:23,716 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 182 transitions. [2023-11-26 11:56:23,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 182 transitions. [2023-11-26 11:56:23,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:23,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 182 transitions. [2023-11-26 11:56:23,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 18.2) internal successors, (182), 10 states have internal predecessors, (182), 0 states have call successors, (0), 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 11:56:23,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:23,734 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:23,736 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 87 flow. Second operand 10 states and 182 transitions. [2023-11-26 11:56:23,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 112 transitions, 464 flow [2023-11-26 11:56:23,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 112 transitions, 453 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-26 11:56:23,755 INFO L231 Difference]: Finished difference. Result has 57 places, 59 transitions, 210 flow [2023-11-26 11:56:23,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=210, PETRI_PLACES=57, PETRI_TRANSITIONS=59} [2023-11-26 11:56:23,764 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 11 predicate places. [2023-11-26 11:56:23,765 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 59 transitions, 210 flow [2023-11-26 11:56:23,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:23,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:23,765 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:23,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:56:23,767 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 11:56:23,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:23,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1159707291, now seen corresponding path program 1 times [2023-11-26 11:56:23,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:23,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502787633] [2023-11-26 11:56:23,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:23,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:24,378 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 11:56:24,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:24,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502787633] [2023-11-26 11:56:24,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502787633] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:24,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:24,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:56:24,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025315302] [2023-11-26 11:56:24,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:24,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:56:24,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:24,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:56:24,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:56:24,386 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 11:56:24,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 59 transitions, 210 flow. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:24,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:24,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 11:56:24,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:25,268 INFO L124 PetriNetUnfolderBase]: 1551/2678 cut-off events. [2023-11-26 11:56:25,269 INFO L125 PetriNetUnfolderBase]: For 1041/1043 co-relation queries the response was YES. [2023-11-26 11:56:25,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6531 conditions, 2678 events. 1551/2678 cut-off events. For 1041/1043 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 14627 event pairs, 870 based on Foata normal form. 2/2440 useless extension candidates. Maximal degree in co-relation 5647. Up to 1866 conditions per place. [2023-11-26 11:56:25,294 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 83 selfloop transitions, 27 changer transitions 9/123 dead transitions. [2023-11-26 11:56:25,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 123 transitions, 652 flow [2023-11-26 11:56:25,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 11:56:25,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-26 11:56:25,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 179 transitions. [2023-11-26 11:56:25,301 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3977777777777778 [2023-11-26 11:56:25,302 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 179 transitions. [2023-11-26 11:56:25,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 179 transitions. [2023-11-26 11:56:25,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:25,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 179 transitions. [2023-11-26 11:56:25,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 17.9) internal successors, (179), 10 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:25,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:25,315 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:25,315 INFO L175 Difference]: Start difference. First operand has 57 places, 59 transitions, 210 flow. Second operand 10 states and 179 transitions. [2023-11-26 11:56:25,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 123 transitions, 652 flow [2023-11-26 11:56:25,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 123 transitions, 650 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:56:25,329 INFO L231 Difference]: Finished difference. Result has 69 places, 75 transitions, 366 flow [2023-11-26 11:56:25,329 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=366, PETRI_PLACES=69, PETRI_TRANSITIONS=75} [2023-11-26 11:56:25,330 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 23 predicate places. [2023-11-26 11:56:25,331 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 75 transitions, 366 flow [2023-11-26 11:56:25,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:25,331 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:25,332 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:25,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:56:25,332 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 11:56:25,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:25,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1471829559, now seen corresponding path program 1 times [2023-11-26 11:56:25,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:25,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046983006] [2023-11-26 11:56:25,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:25,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:25,464 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 11:56:25,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:25,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046983006] [2023-11-26 11:56:25,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046983006] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:25,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:25,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:56:25,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161002982] [2023-11-26 11:56:25,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:25,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:56:25,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:25,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:56:25,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:56:25,472 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 45 [2023-11-26 11:56:25,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 75 transitions, 366 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:25,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:25,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 45 [2023-11-26 11:56:25,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:25,914 INFO L124 PetriNetUnfolderBase]: 963/1711 cut-off events. [2023-11-26 11:56:25,914 INFO L125 PetriNetUnfolderBase]: For 1004/1007 co-relation queries the response was YES. [2023-11-26 11:56:25,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4743 conditions, 1711 events. 963/1711 cut-off events. For 1004/1007 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 9168 event pairs, 175 based on Foata normal form. 1/1612 useless extension candidates. Maximal degree in co-relation 4354. Up to 1014 conditions per place. [2023-11-26 11:56:25,930 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 111 selfloop transitions, 6 changer transitions 0/120 dead transitions. [2023-11-26 11:56:25,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 120 transitions, 816 flow [2023-11-26 11:56:25,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:56:25,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 11:56:25,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 94 transitions. [2023-11-26 11:56:25,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5222222222222223 [2023-11-26 11:56:25,932 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 94 transitions. [2023-11-26 11:56:25,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 94 transitions. [2023-11-26 11:56:25,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:25,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 94 transitions. [2023-11-26 11:56:25,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:25,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:25,934 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:25,934 INFO L175 Difference]: Start difference. First operand has 69 places, 75 transitions, 366 flow. Second operand 4 states and 94 transitions. [2023-11-26 11:56:25,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 120 transitions, 816 flow [2023-11-26 11:56:25,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 120 transitions, 816 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:56:25,946 INFO L231 Difference]: Finished difference. Result has 69 places, 62 transitions, 308 flow [2023-11-26 11:56:25,946 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=308, PETRI_PLACES=69, PETRI_TRANSITIONS=62} [2023-11-26 11:56:25,947 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 23 predicate places. [2023-11-26 11:56:25,947 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 62 transitions, 308 flow [2023-11-26 11:56:25,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:25,947 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:25,948 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:25,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:56:25,948 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 11:56:25,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:25,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1343215567, now seen corresponding path program 1 times [2023-11-26 11:56:25,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:25,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573547873] [2023-11-26 11:56:25,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:25,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:26,710 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 11:56:26,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:26,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573547873] [2023-11-26 11:56:26,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573547873] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:26,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:26,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:56:26,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755975713] [2023-11-26 11:56:26,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:26,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:56:26,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:26,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:56:26,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:56:26,720 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 11:56:26,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 62 transitions, 308 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:26,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:26,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 11:56:26,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:27,695 INFO L124 PetriNetUnfolderBase]: 1582/2818 cut-off events. [2023-11-26 11:56:27,695 INFO L125 PetriNetUnfolderBase]: For 2900/2910 co-relation queries the response was YES. [2023-11-26 11:56:27,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8196 conditions, 2818 events. 1582/2818 cut-off events. For 2900/2910 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 15668 event pairs, 650 based on Foata normal form. 66/2748 useless extension candidates. Maximal degree in co-relation 4992. Up to 1625 conditions per place. [2023-11-26 11:56:27,720 INFO L140 encePairwiseOnDemand]: 33/45 looper letters, 104 selfloop transitions, 38 changer transitions 11/156 dead transitions. [2023-11-26 11:56:27,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 156 transitions, 1049 flow [2023-11-26 11:56:27,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 11:56:27,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-26 11:56:27,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 208 transitions. [2023-11-26 11:56:27,722 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3851851851851852 [2023-11-26 11:56:27,723 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 208 transitions. [2023-11-26 11:56:27,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 208 transitions. [2023-11-26 11:56:27,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:27,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 208 transitions. [2023-11-26 11:56:27,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 17.333333333333332) internal successors, (208), 12 states have internal predecessors, (208), 0 states have call successors, (0), 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 11:56:27,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 45.0) internal successors, (585), 13 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:27,726 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 45.0) internal successors, (585), 13 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:27,726 INFO L175 Difference]: Start difference. First operand has 69 places, 62 transitions, 308 flow. Second operand 12 states and 208 transitions. [2023-11-26 11:56:27,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 156 transitions, 1049 flow [2023-11-26 11:56:27,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 156 transitions, 1020 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:56:27,743 INFO L231 Difference]: Finished difference. Result has 86 places, 91 transitions, 644 flow [2023-11-26 11:56:27,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=644, PETRI_PLACES=86, PETRI_TRANSITIONS=91} [2023-11-26 11:56:27,745 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 40 predicate places. [2023-11-26 11:56:27,745 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 91 transitions, 644 flow [2023-11-26 11:56:27,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:27,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:27,745 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:27,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:56:27,746 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 11:56:27,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:27,746 INFO L85 PathProgramCache]: Analyzing trace with hash 8116071, now seen corresponding path program 2 times [2023-11-26 11:56:27,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:27,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080481790] [2023-11-26 11:56:27,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:27,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:28,587 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 11:56:28,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:28,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080481790] [2023-11-26 11:56:28,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080481790] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:28,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:28,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:56:28,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478577071] [2023-11-26 11:56:28,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:28,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:56:28,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:28,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:56:28,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:56:28,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 11:56:28,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 91 transitions, 644 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:28,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:28,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 11:56:28,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:30,059 INFO L124 PetriNetUnfolderBase]: 1916/3415 cut-off events. [2023-11-26 11:56:30,060 INFO L125 PetriNetUnfolderBase]: For 7723/7733 co-relation queries the response was YES. [2023-11-26 11:56:30,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11735 conditions, 3415 events. 1916/3415 cut-off events. For 7723/7733 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 19724 event pairs, 739 based on Foata normal form. 66/3321 useless extension candidates. Maximal degree in co-relation 11422. Up to 1685 conditions per place. [2023-11-26 11:56:30,099 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 117 selfloop transitions, 47 changer transitions 10/177 dead transitions. [2023-11-26 11:56:30,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 177 transitions, 1414 flow [2023-11-26 11:56:30,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:56:30,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-26 11:56:30,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 236 transitions. [2023-11-26 11:56:30,102 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3496296296296296 [2023-11-26 11:56:30,103 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 236 transitions. [2023-11-26 11:56:30,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 236 transitions. [2023-11-26 11:56:30,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:30,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 236 transitions. [2023-11-26 11:56:30,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 15.733333333333333) internal successors, (236), 15 states have internal predecessors, (236), 0 states have call successors, (0), 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 11:56:30,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 45.0) internal successors, (720), 16 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:30,108 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 45.0) internal successors, (720), 16 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:30,108 INFO L175 Difference]: Start difference. First operand has 86 places, 91 transitions, 644 flow. Second operand 15 states and 236 transitions. [2023-11-26 11:56:30,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 177 transitions, 1414 flow [2023-11-26 11:56:30,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 177 transitions, 1390 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-11-26 11:56:30,165 INFO L231 Difference]: Finished difference. Result has 104 places, 109 transitions, 939 flow [2023-11-26 11:56:30,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=939, PETRI_PLACES=104, PETRI_TRANSITIONS=109} [2023-11-26 11:56:30,168 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 58 predicate places. [2023-11-26 11:56:30,169 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 109 transitions, 939 flow [2023-11-26 11:56:30,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:30,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:30,169 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:30,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:56:30,170 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 11:56:30,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:30,171 INFO L85 PathProgramCache]: Analyzing trace with hash -532180971, now seen corresponding path program 1 times [2023-11-26 11:56:30,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:30,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459043149] [2023-11-26 11:56:30,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:30,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:31,351 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 11:56:31,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:31,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459043149] [2023-11-26 11:56:31,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459043149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:31,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:31,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:56:31,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470083151] [2023-11-26 11:56:31,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:31,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:56:31,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:31,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:56:31,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:56:31,359 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 11:56:31,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 109 transitions, 939 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:31,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:31,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 11:56:31,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:33,293 INFO L124 PetriNetUnfolderBase]: 2330/4283 cut-off events. [2023-11-26 11:56:33,293 INFO L125 PetriNetUnfolderBase]: For 11875/11890 co-relation queries the response was YES. [2023-11-26 11:56:33,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15416 conditions, 4283 events. 2330/4283 cut-off events. For 11875/11890 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 26816 event pairs, 1229 based on Foata normal form. 51/4154 useless extension candidates. Maximal degree in co-relation 14685. Up to 2426 conditions per place. [2023-11-26 11:56:33,354 INFO L140 encePairwiseOnDemand]: 33/45 looper letters, 141 selfloop transitions, 59 changer transitions 9/212 dead transitions. [2023-11-26 11:56:33,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 212 transitions, 1979 flow [2023-11-26 11:56:33,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-26 11:56:33,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-26 11:56:33,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 265 transitions. [2023-11-26 11:56:33,358 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3464052287581699 [2023-11-26 11:56:33,358 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 265 transitions. [2023-11-26 11:56:33,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 265 transitions. [2023-11-26 11:56:33,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:33,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 265 transitions. [2023-11-26 11:56:33,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 15.588235294117647) internal successors, (265), 17 states have internal predecessors, (265), 0 states have call successors, (0), 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 11:56:33,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 45.0) internal successors, (810), 18 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:33,364 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 45.0) internal successors, (810), 18 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:33,365 INFO L175 Difference]: Start difference. First operand has 104 places, 109 transitions, 939 flow. Second operand 17 states and 265 transitions. [2023-11-26 11:56:33,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 212 transitions, 1979 flow [2023-11-26 11:56:33,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 212 transitions, 1858 flow, removed 22 selfloop flow, removed 7 redundant places. [2023-11-26 11:56:33,450 INFO L231 Difference]: Finished difference. Result has 119 places, 134 transitions, 1262 flow [2023-11-26 11:56:33,450 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=861, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1262, PETRI_PLACES=119, PETRI_TRANSITIONS=134} [2023-11-26 11:56:33,453 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 73 predicate places. [2023-11-26 11:56:33,454 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 134 transitions, 1262 flow [2023-11-26 11:56:33,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:33,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:33,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:33,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:56:33,455 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 11:56:33,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:33,456 INFO L85 PathProgramCache]: Analyzing trace with hash -558381115, now seen corresponding path program 3 times [2023-11-26 11:56:33,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:33,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830485928] [2023-11-26 11:56:33,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:33,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:34,355 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 11:56:34,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:34,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830485928] [2023-11-26 11:56:34,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830485928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:34,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:34,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:56:34,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026600632] [2023-11-26 11:56:34,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:34,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:56:34,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:34,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:56:34,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:56:34,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 11:56:34,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 134 transitions, 1262 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:34,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:34,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 11:56:34,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:36,358 INFO L124 PetriNetUnfolderBase]: 2226/4130 cut-off events. [2023-11-26 11:56:36,359 INFO L125 PetriNetUnfolderBase]: For 15730/15745 co-relation queries the response was YES. [2023-11-26 11:56:36,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15760 conditions, 4130 events. 2226/4130 cut-off events. For 15730/15745 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 25889 event pairs, 888 based on Foata normal form. 85/4065 useless extension candidates. Maximal degree in co-relation 14859. Up to 2140 conditions per place. [2023-11-26 11:56:36,427 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 149 selfloop transitions, 78 changer transitions 16/246 dead transitions. [2023-11-26 11:56:36,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 246 transitions, 2481 flow [2023-11-26 11:56:36,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-26 11:56:36,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-26 11:56:36,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 292 transitions. [2023-11-26 11:56:36,431 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34152046783625734 [2023-11-26 11:56:36,432 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 292 transitions. [2023-11-26 11:56:36,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 292 transitions. [2023-11-26 11:56:36,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:36,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 292 transitions. [2023-11-26 11:56:36,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 15.368421052631579) internal successors, (292), 19 states have internal predecessors, (292), 0 states have call successors, (0), 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 11:56:36,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 45.0) internal successors, (900), 20 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:36,438 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 45.0) internal successors, (900), 20 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:36,439 INFO L175 Difference]: Start difference. First operand has 119 places, 134 transitions, 1262 flow. Second operand 19 states and 292 transitions. [2023-11-26 11:56:36,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 246 transitions, 2481 flow [2023-11-26 11:56:36,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 246 transitions, 2358 flow, removed 37 selfloop flow, removed 5 redundant places. [2023-11-26 11:56:36,582 INFO L231 Difference]: Finished difference. Result has 141 places, 157 transitions, 1667 flow [2023-11-26 11:56:36,582 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1181, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1667, PETRI_PLACES=141, PETRI_TRANSITIONS=157} [2023-11-26 11:56:36,583 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 95 predicate places. [2023-11-26 11:56:36,583 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 157 transitions, 1667 flow [2023-11-26 11:56:36,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:36,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:36,584 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:36,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:56:36,584 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 11:56:36,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:36,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1679305723, now seen corresponding path program 2 times [2023-11-26 11:56:36,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:36,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309617195] [2023-11-26 11:56:36,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:36,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:37,398 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 11:56:37,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:37,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309617195] [2023-11-26 11:56:37,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309617195] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:37,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:37,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:56:37,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019433062] [2023-11-26 11:56:37,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:37,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:56:37,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:37,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:56:37,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:56:37,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 11:56:37,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 157 transitions, 1667 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:37,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:37,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 11:56:37,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:39,073 INFO L124 PetriNetUnfolderBase]: 1419/2642 cut-off events. [2023-11-26 11:56:39,073 INFO L125 PetriNetUnfolderBase]: For 13652/13662 co-relation queries the response was YES. [2023-11-26 11:56:39,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12170 conditions, 2642 events. 1419/2642 cut-off events. For 13652/13662 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 15413 event pairs, 432 based on Foata normal form. 46/2532 useless extension candidates. Maximal degree in co-relation 11494. Up to 1195 conditions per place. [2023-11-26 11:56:39,110 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 139 selfloop transitions, 104 changer transitions 7/253 dead transitions. [2023-11-26 11:56:39,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 253 transitions, 2757 flow [2023-11-26 11:56:39,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-26 11:56:39,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-11-26 11:56:39,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 316 transitions. [2023-11-26 11:56:39,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3191919191919192 [2023-11-26 11:56:39,113 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 316 transitions. [2023-11-26 11:56:39,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 316 transitions. [2023-11-26 11:56:39,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:39,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 316 transitions. [2023-11-26 11:56:39,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 14.363636363636363) internal successors, (316), 22 states have internal predecessors, (316), 0 states have call successors, (0), 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 11:56:39,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 45.0) internal successors, (1035), 23 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:39,119 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 45.0) internal successors, (1035), 23 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:39,119 INFO L175 Difference]: Start difference. First operand has 141 places, 157 transitions, 1667 flow. Second operand 22 states and 316 transitions. [2023-11-26 11:56:39,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 253 transitions, 2757 flow [2023-11-26 11:56:39,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 253 transitions, 2587 flow, removed 32 selfloop flow, removed 10 redundant places. [2023-11-26 11:56:39,253 INFO L231 Difference]: Finished difference. Result has 157 places, 175 transitions, 2012 flow [2023-11-26 11:56:39,253 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1538, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2012, PETRI_PLACES=157, PETRI_TRANSITIONS=175} [2023-11-26 11:56:39,254 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 111 predicate places. [2023-11-26 11:56:39,254 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 175 transitions, 2012 flow [2023-11-26 11:56:39,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:39,255 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:39,255 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:39,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:56:39,255 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 11:56:39,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:39,256 INFO L85 PathProgramCache]: Analyzing trace with hash 918268677, now seen corresponding path program 3 times [2023-11-26 11:56:39,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:39,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667589150] [2023-11-26 11:56:39,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:39,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:40,150 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 11:56:40,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:40,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667589150] [2023-11-26 11:56:40,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667589150] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:40,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:40,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:56:40,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801332735] [2023-11-26 11:56:40,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:40,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:56:40,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:40,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:56:40,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:56:40,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 11:56:40,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 175 transitions, 2012 flow. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:40,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:40,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 11:56:40,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:41,714 INFO L124 PetriNetUnfolderBase]: 1357/2538 cut-off events. [2023-11-26 11:56:41,714 INFO L125 PetriNetUnfolderBase]: For 16640/16650 co-relation queries the response was YES. [2023-11-26 11:56:41,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12366 conditions, 2538 events. 1357/2538 cut-off events. For 16640/16650 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 14677 event pairs, 411 based on Foata normal form. 46/2440 useless extension candidates. Maximal degree in co-relation 11961. Up to 1219 conditions per place. [2023-11-26 11:56:41,751 INFO L140 encePairwiseOnDemand]: 33/45 looper letters, 158 selfloop transitions, 88 changer transitions 8/257 dead transitions. [2023-11-26 11:56:41,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 257 transitions, 2963 flow [2023-11-26 11:56:41,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-26 11:56:41,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-26 11:56:41,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 307 transitions. [2023-11-26 11:56:41,754 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32486772486772486 [2023-11-26 11:56:41,755 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 307 transitions. [2023-11-26 11:56:41,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 307 transitions. [2023-11-26 11:56:41,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:41,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 307 transitions. [2023-11-26 11:56:41,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 14.619047619047619) internal successors, (307), 21 states have internal predecessors, (307), 0 states have call successors, (0), 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 11:56:41,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 45.0) internal successors, (990), 22 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:41,759 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 45.0) internal successors, (990), 22 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:41,760 INFO L175 Difference]: Start difference. First operand has 157 places, 175 transitions, 2012 flow. Second operand 21 states and 307 transitions. [2023-11-26 11:56:41,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 257 transitions, 2963 flow [2023-11-26 11:56:41,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 257 transitions, 2741 flow, removed 37 selfloop flow, removed 13 redundant places. [2023-11-26 11:56:41,913 INFO L231 Difference]: Finished difference. Result has 168 places, 191 transitions, 2209 flow [2023-11-26 11:56:41,914 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1806, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2209, PETRI_PLACES=168, PETRI_TRANSITIONS=191} [2023-11-26 11:56:41,915 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 122 predicate places. [2023-11-26 11:56:41,915 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 191 transitions, 2209 flow [2023-11-26 11:56:41,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:41,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:41,915 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:41,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:56:41,916 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 11:56:41,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:41,916 INFO L85 PathProgramCache]: Analyzing trace with hash 270060864, now seen corresponding path program 1 times [2023-11-26 11:56:41,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:41,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294768848] [2023-11-26 11:56:41,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:41,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:42,898 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 11:56:42,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:42,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294768848] [2023-11-26 11:56:42,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294768848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:42,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:42,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 11:56:42,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224932548] [2023-11-26 11:56:42,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:42,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:56:42,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:42,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:56:42,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:56:42,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 11:56:42,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 191 transitions, 2209 flow. Second operand has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:42,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:42,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 11:56:42,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:44,584 INFO L124 PetriNetUnfolderBase]: 1421/2654 cut-off events. [2023-11-26 11:56:44,585 INFO L125 PetriNetUnfolderBase]: For 21110/21120 co-relation queries the response was YES. [2023-11-26 11:56:44,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13496 conditions, 2654 events. 1421/2654 cut-off events. For 21110/21120 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 15663 event pairs, 478 based on Foata normal form. 10/2538 useless extension candidates. Maximal degree in co-relation 13113. Up to 1521 conditions per place. [2023-11-26 11:56:44,621 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 204 selfloop transitions, 74 changer transitions 7/288 dead transitions. [2023-11-26 11:56:44,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 288 transitions, 3309 flow [2023-11-26 11:56:44,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-26 11:56:44,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-26 11:56:44,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 305 transitions. [2023-11-26 11:56:44,625 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3388888888888889 [2023-11-26 11:56:44,625 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 305 transitions. [2023-11-26 11:56:44,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 305 transitions. [2023-11-26 11:56:44,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:44,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 305 transitions. [2023-11-26 11:56:44,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 15.25) internal successors, (305), 20 states have internal predecessors, (305), 0 states have call successors, (0), 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 11:56:44,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 45.0) internal successors, (945), 21 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:44,630 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 45.0) internal successors, (945), 21 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:44,630 INFO L175 Difference]: Start difference. First operand has 168 places, 191 transitions, 2209 flow. Second operand 20 states and 305 transitions. [2023-11-26 11:56:44,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 288 transitions, 3309 flow [2023-11-26 11:56:44,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 288 transitions, 3178 flow, removed 24 selfloop flow, removed 6 redundant places. [2023-11-26 11:56:44,826 INFO L231 Difference]: Finished difference. Result has 185 places, 203 transitions, 2418 flow [2023-11-26 11:56:44,826 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=2082, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2418, PETRI_PLACES=185, PETRI_TRANSITIONS=203} [2023-11-26 11:56:44,827 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 139 predicate places. [2023-11-26 11:56:44,827 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 203 transitions, 2418 flow [2023-11-26 11:56:44,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:44,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:44,828 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:44,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:56:44,828 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 11:56:44,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:44,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1436751561, now seen corresponding path program 1 times [2023-11-26 11:56:44,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:44,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369567671] [2023-11-26 11:56:44,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:44,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:45,687 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 11:56:45,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:45,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369567671] [2023-11-26 11:56:45,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369567671] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:45,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:45,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 11:56:45,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367620730] [2023-11-26 11:56:45,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:45,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:56:45,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:45,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:56:45,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:56:45,689 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 11:56:45,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 203 transitions, 2418 flow. Second operand has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:45,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:45,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 11:56:45,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:47,220 INFO L124 PetriNetUnfolderBase]: 1366/2565 cut-off events. [2023-11-26 11:56:47,220 INFO L125 PetriNetUnfolderBase]: For 24833/24843 co-relation queries the response was YES. [2023-11-26 11:56:47,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13435 conditions, 2565 events. 1366/2565 cut-off events. For 24833/24843 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 15094 event pairs, 490 based on Foata normal form. 46/2551 useless extension candidates. Maximal degree in co-relation 13038. Up to 1573 conditions per place. [2023-11-26 11:56:47,264 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 186 selfloop transitions, 71 changer transitions 10/270 dead transitions. [2023-11-26 11:56:47,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 270 transitions, 3249 flow [2023-11-26 11:56:47,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-26 11:56:47,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-26 11:56:47,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 265 transitions. [2023-11-26 11:56:47,268 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3464052287581699 [2023-11-26 11:56:47,268 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 265 transitions. [2023-11-26 11:56:47,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 265 transitions. [2023-11-26 11:56:47,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:47,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 265 transitions. [2023-11-26 11:56:47,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 15.588235294117647) internal successors, (265), 17 states have internal predecessors, (265), 0 states have call successors, (0), 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 11:56:47,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 45.0) internal successors, (810), 18 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:47,274 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 45.0) internal successors, (810), 18 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:47,274 INFO L175 Difference]: Start difference. First operand has 185 places, 203 transitions, 2418 flow. Second operand 17 states and 265 transitions. [2023-11-26 11:56:47,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 270 transitions, 3249 flow [2023-11-26 11:56:47,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 270 transitions, 3130 flow, removed 12 selfloop flow, removed 9 redundant places. [2023-11-26 11:56:47,474 INFO L231 Difference]: Finished difference. Result has 193 places, 201 transitions, 2438 flow [2023-11-26 11:56:47,474 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=2299, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2438, PETRI_PLACES=193, PETRI_TRANSITIONS=201} [2023-11-26 11:56:47,475 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 147 predicate places. [2023-11-26 11:56:47,475 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 201 transitions, 2438 flow [2023-11-26 11:56:47,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:47,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:47,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:47,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:56:47,476 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 11:56:47,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:47,476 INFO L85 PathProgramCache]: Analyzing trace with hash 259519015, now seen corresponding path program 1 times [2023-11-26 11:56:47,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:47,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875731769] [2023-11-26 11:56:47,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:47,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:47,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:48,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:48,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:48,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875731769] [2023-11-26 11:56:48,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875731769] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:48,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:48,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:56:48,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061216820] [2023-11-26 11:56:48,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:48,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:56:48,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:48,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:56:48,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:56:48,090 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 11:56:48,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 201 transitions, 2438 flow. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:48,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:48,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 11:56:48,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:49,087 INFO L124 PetriNetUnfolderBase]: 1426/2689 cut-off events. [2023-11-26 11:56:49,087 INFO L125 PetriNetUnfolderBase]: For 27602/27610 co-relation queries the response was YES. [2023-11-26 11:56:49,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14376 conditions, 2689 events. 1426/2689 cut-off events. For 27602/27610 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 16400 event pairs, 425 based on Foata normal form. 32/2653 useless extension candidates. Maximal degree in co-relation 14229. Up to 1581 conditions per place. [2023-11-26 11:56:49,119 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 234 selfloop transitions, 71 changer transitions 0/308 dead transitions. [2023-11-26 11:56:49,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 308 transitions, 4297 flow [2023-11-26 11:56:49,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 11:56:49,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-26 11:56:49,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 175 transitions. [2023-11-26 11:56:49,121 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3888888888888889 [2023-11-26 11:56:49,121 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 175 transitions. [2023-11-26 11:56:49,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 175 transitions. [2023-11-26 11:56:49,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:49,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 175 transitions. [2023-11-26 11:56:49,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 17.5) internal successors, (175), 10 states have internal predecessors, (175), 0 states have call successors, (0), 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 11:56:49,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:49,124 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:49,124 INFO L175 Difference]: Start difference. First operand has 193 places, 201 transitions, 2438 flow. Second operand 10 states and 175 transitions. [2023-11-26 11:56:49,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 308 transitions, 4297 flow [2023-11-26 11:56:49,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 308 transitions, 4117 flow, removed 2 selfloop flow, removed 15 redundant places. [2023-11-26 11:56:49,366 INFO L231 Difference]: Finished difference. Result has 192 places, 238 transitions, 3016 flow [2023-11-26 11:56:49,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=2321, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3016, PETRI_PLACES=192, PETRI_TRANSITIONS=238} [2023-11-26 11:56:49,368 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 146 predicate places. [2023-11-26 11:56:49,369 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 238 transitions, 3016 flow [2023-11-26 11:56:49,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:49,369 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:49,369 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:49,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:56:49,369 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 11:56:49,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:49,370 INFO L85 PathProgramCache]: Analyzing trace with hash 361247315, now seen corresponding path program 2 times [2023-11-26 11:56:49,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:49,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656387774] [2023-11-26 11:56:49,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:49,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:49,937 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 11:56:49,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:49,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656387774] [2023-11-26 11:56:49,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656387774] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:49,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:49,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:56:49,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637373820] [2023-11-26 11:56:49,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:49,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:56:49,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:49,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:56:49,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:56:49,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 11:56:49,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 238 transitions, 3016 flow. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:49,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:49,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 11:56:49,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:51,119 INFO L124 PetriNetUnfolderBase]: 1671/3220 cut-off events. [2023-11-26 11:56:51,119 INFO L125 PetriNetUnfolderBase]: For 36239/36247 co-relation queries the response was YES. [2023-11-26 11:56:51,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18336 conditions, 3220 events. 1671/3220 cut-off events. For 36239/36247 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 21050 event pairs, 380 based on Foata normal form. 40/3188 useless extension candidates. Maximal degree in co-relation 17457. Up to 1163 conditions per place. [2023-11-26 11:56:51,163 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 274 selfloop transitions, 94 changer transitions 0/371 dead transitions. [2023-11-26 11:56:51,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 371 transitions, 5084 flow [2023-11-26 11:56:51,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:56:51,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-26 11:56:51,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 240 transitions. [2023-11-26 11:56:51,166 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48484848484848486 [2023-11-26 11:56:51,166 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 240 transitions. [2023-11-26 11:56:51,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 240 transitions. [2023-11-26 11:56:51,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:51,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 240 transitions. [2023-11-26 11:56:51,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 21.818181818181817) internal successors, (240), 11 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:51,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 45.0) internal successors, (540), 12 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:51,169 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 45.0) internal successors, (540), 12 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:51,170 INFO L175 Difference]: Start difference. First operand has 192 places, 238 transitions, 3016 flow. Second operand 11 states and 240 transitions. [2023-11-26 11:56:51,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 371 transitions, 5084 flow [2023-11-26 11:56:51,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 371 transitions, 5004 flow, removed 39 selfloop flow, removed 1 redundant places. [2023-11-26 11:56:51,488 INFO L231 Difference]: Finished difference. Result has 207 places, 260 transitions, 3604 flow [2023-11-26 11:56:51,489 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=2948, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3604, PETRI_PLACES=207, PETRI_TRANSITIONS=260} [2023-11-26 11:56:51,490 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 161 predicate places. [2023-11-26 11:56:51,491 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 260 transitions, 3604 flow [2023-11-26 11:56:51,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:51,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:51,491 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:51,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 11:56:51,491 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 11:56:51,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:51,492 INFO L85 PathProgramCache]: Analyzing trace with hash -2002166342, now seen corresponding path program 1 times [2023-11-26 11:56:51,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:51,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588814279] [2023-11-26 11:56:51,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:51,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:51,979 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 11:56:51,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:51,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588814279] [2023-11-26 11:56:51,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588814279] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:51,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:51,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:56:51,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607931560] [2023-11-26 11:56:51,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:51,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:56:51,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:51,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:56:51,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:56:51,982 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 11:56:51,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 260 transitions, 3604 flow. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:51,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:51,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 11:56:51,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:53,629 INFO L124 PetriNetUnfolderBase]: 1627/3138 cut-off events. [2023-11-26 11:56:53,629 INFO L125 PetriNetUnfolderBase]: For 39448/39456 co-relation queries the response was YES. [2023-11-26 11:56:53,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18975 conditions, 3138 events. 1627/3138 cut-off events. For 39448/39456 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 20027 event pairs, 505 based on Foata normal form. 8/3106 useless extension candidates. Maximal degree in co-relation 18177. Up to 579 conditions per place. [2023-11-26 11:56:53,669 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 236 selfloop transitions, 122 changer transitions 0/361 dead transitions. [2023-11-26 11:56:53,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 361 transitions, 5207 flow [2023-11-26 11:56:53,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-26 11:56:53,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-26 11:56:53,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 299 transitions. [2023-11-26 11:56:53,672 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3691358024691358 [2023-11-26 11:56:53,673 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 299 transitions. [2023-11-26 11:56:53,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 299 transitions. [2023-11-26 11:56:53,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:53,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 299 transitions. [2023-11-26 11:56:53,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 16.61111111111111) internal successors, (299), 18 states have internal predecessors, (299), 0 states have call successors, (0), 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 11:56:53,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 45.0) internal successors, (855), 19 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,677 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 45.0) internal successors, (855), 19 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,677 INFO L175 Difference]: Start difference. First operand has 207 places, 260 transitions, 3604 flow. Second operand 18 states and 299 transitions. [2023-11-26 11:56:53,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 361 transitions, 5207 flow [2023-11-26 11:56:54,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 361 transitions, 5027 flow, removed 70 selfloop flow, removed 3 redundant places. [2023-11-26 11:56:54,013 INFO L231 Difference]: Finished difference. Result has 227 places, 271 transitions, 4035 flow [2023-11-26 11:56:54,013 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=3470, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4035, PETRI_PLACES=227, PETRI_TRANSITIONS=271} [2023-11-26 11:56:54,014 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 181 predicate places. [2023-11-26 11:56:54,014 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 271 transitions, 4035 flow [2023-11-26 11:56:54,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:54,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:54,015 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:54,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 11:56:54,015 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 11:56:54,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:54,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1954976685, now seen corresponding path program 3 times [2023-11-26 11:56:54,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:54,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97329387] [2023-11-26 11:56:54,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:54,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:54,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:54,773 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 11:56:54,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:54,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97329387] [2023-11-26 11:56:54,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97329387] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:54,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:54,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 11:56:54,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418836505] [2023-11-26 11:56:54,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:54,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 11:56:54,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:54,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 11:56:54,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:56:54,775 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 11:56:54,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 271 transitions, 4035 flow. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:54,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:54,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 11:56:54,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:56,657 INFO L124 PetriNetUnfolderBase]: 1773/3454 cut-off events. [2023-11-26 11:56:56,658 INFO L125 PetriNetUnfolderBase]: For 45696/45704 co-relation queries the response was YES. [2023-11-26 11:56:56,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20693 conditions, 3454 events. 1773/3454 cut-off events. For 45696/45704 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 22504 event pairs, 714 based on Foata normal form. 40/3494 useless extension candidates. Maximal degree in co-relation 19479. Up to 1407 conditions per place. [2023-11-26 11:56:56,753 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 228 selfloop transitions, 108 changer transitions 45/384 dead transitions. [2023-11-26 11:56:56,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 384 transitions, 5826 flow [2023-11-26 11:56:56,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-26 11:56:56,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-26 11:56:56,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 326 transitions. [2023-11-26 11:56:56,757 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.314975845410628 [2023-11-26 11:56:56,757 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 326 transitions. [2023-11-26 11:56:56,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 326 transitions. [2023-11-26 11:56:56,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:56,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 326 transitions. [2023-11-26 11:56:56,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 14.173913043478262) internal successors, (326), 23 states have internal predecessors, (326), 0 states have call successors, (0), 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 11:56:56,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 45.0) internal successors, (1080), 24 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:56,762 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 45.0) internal successors, (1080), 24 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:56,762 INFO L175 Difference]: Start difference. First operand has 227 places, 271 transitions, 4035 flow. Second operand 23 states and 326 transitions. [2023-11-26 11:56:56,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 384 transitions, 5826 flow [2023-11-26 11:56:57,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 384 transitions, 5221 flow, removed 146 selfloop flow, removed 12 redundant places. [2023-11-26 11:56:57,213 INFO L231 Difference]: Finished difference. Result has 239 places, 263 transitions, 3697 flow [2023-11-26 11:56:57,214 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=3538, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=3697, PETRI_PLACES=239, PETRI_TRANSITIONS=263} [2023-11-26 11:56:57,215 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 193 predicate places. [2023-11-26 11:56:57,215 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 263 transitions, 3697 flow [2023-11-26 11:56:57,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:57,215 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:57,216 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:57,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 11:56:57,216 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-26 11:56:57,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:57,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1025439628, now seen corresponding path program 2 times [2023-11-26 11:56:57,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:57,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016827517] [2023-11-26 11:56:57,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:57,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:58,153 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 11:56:58,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:58,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016827517] [2023-11-26 11:56:58,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016827517] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:58,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:58,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 11:56:58,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300214130] [2023-11-26 11:56:58,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:58,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:56:58,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:58,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:56:58,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:56:58,155 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 45 [2023-11-26 11:56:58,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 263 transitions, 3697 flow. Second operand has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:58,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:58,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 45 [2023-11-26 11:56:58,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:57:00,400 INFO L124 PetriNetUnfolderBase]: 1997/3937 cut-off events. [2023-11-26 11:57:00,400 INFO L125 PetriNetUnfolderBase]: For 39361/39369 co-relation queries the response was YES. [2023-11-26 11:57:00,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21881 conditions, 3937 events. 1997/3937 cut-off events. For 39361/39369 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 26878 event pairs, 478 based on Foata normal form. 40/3977 useless extension candidates. Maximal degree in co-relation 20937. Up to 1183 conditions per place. [2023-11-26 11:57:00,458 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 303 selfloop transitions, 138 changer transitions 6/450 dead transitions. [2023-11-26 11:57:00,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 450 transitions, 6086 flow [2023-11-26 11:57:00,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-26 11:57:00,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-26 11:57:00,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 374 transitions. [2023-11-26 11:57:00,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34629629629629627 [2023-11-26 11:57:00,463 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 374 transitions. [2023-11-26 11:57:00,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 374 transitions. [2023-11-26 11:57:00,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:00,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 374 transitions. [2023-11-26 11:57:00,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 15.583333333333334) internal successors, (374), 24 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)