./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a3e9b7-ff8a-40fd-b172-be56c4000cf1/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a3e9b7-ff8a-40fd-b172-be56c4000cf1/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a3e9b7-ff8a-40fd-b172-be56c4000cf1/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a3e9b7-ff8a-40fd-b172-be56c4000cf1/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a3e9b7-ff8a-40fd-b172-be56c4000cf1/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a3e9b7-ff8a-40fd-b172-be56c4000cf1/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --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 fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:53:49,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:53:49,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:53:49,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:53:49,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:53:49,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:53:49,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:53:49,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:53:49,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:53:49,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:53:49,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:53:49,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:53:49,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:53:49,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:53:49,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:53:49,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:53:49,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:53:49,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:53:49,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:53:49,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:53:49,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:53:49,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:53:49,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:53:49,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:53:49,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:53:49,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:53:49,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:53:49,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:53:49,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:53:49,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:53:49,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:53:49,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:53:49,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:53:49,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:53:49,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:53:49,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:53:49,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:53:49,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:53:49,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:53:49,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:53:49,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:53:49,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a3e9b7-ff8a-40fd-b172-be56c4000cf1/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 11:53:49,754 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:53:49,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:53:49,755 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:53:49,755 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:53:49,756 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:53:49,756 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:53:49,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:53:49,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:53:49,757 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:53:49,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:53:49,758 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:53:49,758 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:53:49,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:53:49,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:53:49,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:53:49,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:53:49,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:53:49,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:53:49,760 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:53:49,761 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:53:49,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:53:49,761 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:53:49,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:53:49,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:53:49,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:53:49,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:53:49,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:53:49,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:53:49,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:53:49,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:53:49,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:53:49,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:53:49,765 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:53:49,765 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:53:49,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:53:49,766 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_24a3e9b7-ff8a-40fd-b172-be56c4000cf1/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a3e9b7-ff8a-40fd-b172-be56c4000cf1/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db [2022-11-20 11:53:50,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:53:50,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:53:50,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:53:50,106 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:53:50,107 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:53:50,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a3e9b7-ff8a-40fd-b172-be56c4000cf1/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-11-20 11:53:53,111 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:53:53,475 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:53:53,477 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a3e9b7-ff8a-40fd-b172-be56c4000cf1/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-11-20 11:53:53,500 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a3e9b7-ff8a-40fd-b172-be56c4000cf1/bin/uautomizer-ug76WZFUDN/data/11f04c5c6/5c223b07610b49168e3fdb20396470ae/FLAG3abff6b5c [2022-11-20 11:53:53,518 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a3e9b7-ff8a-40fd-b172-be56c4000cf1/bin/uautomizer-ug76WZFUDN/data/11f04c5c6/5c223b07610b49168e3fdb20396470ae [2022-11-20 11:53:53,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:53:53,526 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:53:53,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:53:53,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:53:53,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:53:53,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:53:53" (1/1) ... [2022-11-20 11:53:53,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc5a8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:53:53, skipping insertion in model container [2022-11-20 11:53:53,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:53:53" (1/1) ... [2022-11-20 11:53:53,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:53:53,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:53:54,450 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a3e9b7-ff8a-40fd-b172-be56c4000cf1/sv-benchmarks/c/ldv-races/race-2_1-container_of.i[76077,76090] [2022-11-20 11:53:54,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:53:54,524 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:53:54,603 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a3e9b7-ff8a-40fd-b172-be56c4000cf1/sv-benchmarks/c/ldv-races/race-2_1-container_of.i[76077,76090] [2022-11-20 11:53:54,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:53:54,749 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:53:54,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:53:54 WrapperNode [2022-11-20 11:53:54,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:53:54,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:53:54,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:53:54,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:53:54,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:53:54" (1/1) ... [2022-11-20 11:53:54,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:53:54" (1/1) ... [2022-11-20 11:53:54,815 INFO L138 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 133 [2022-11-20 11:53:54,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:53:54,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:53:54,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:53:54,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:53:54,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:53:54" (1/1) ... [2022-11-20 11:53:54,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:53:54" (1/1) ... [2022-11-20 11:53:54,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:53:54" (1/1) ... [2022-11-20 11:53:54,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:53:54" (1/1) ... [2022-11-20 11:53:54,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:53:54" (1/1) ... [2022-11-20 11:53:54,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:53:54" (1/1) ... [2022-11-20 11:53:54,875 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:53:54" (1/1) ... [2022-11-20 11:53:54,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:53:54" (1/1) ... [2022-11-20 11:53:54,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:53:54,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:53:54,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:53:54,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:53:54,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:53:54" (1/1) ... [2022-11-20 11:53:54,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:53:54,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a3e9b7-ff8a-40fd-b172-be56c4000cf1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:53:54,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a3e9b7-ff8a-40fd-b172-be56c4000cf1/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:53:54,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a3e9b7-ff8a-40fd-b172-be56c4000cf1/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:53:54,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:53:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:53:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:53:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:53:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:53:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:53:54,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:53:54,982 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-20 11:53:54,982 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-20 11:53:54,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:53:54,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:53:54,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:53:54,985 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:53:55,351 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:53:55,353 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:53:55,668 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:53:55,677 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:53:55,678 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:53:55,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:53:55 BoogieIcfgContainer [2022-11-20 11:53:55,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:53:55,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:53:55,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:53:55,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:53:55,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:53:53" (1/3) ... [2022-11-20 11:53:55,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4145cb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:53:55, skipping insertion in model container [2022-11-20 11:53:55,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:53:54" (2/3) ... [2022-11-20 11:53:55,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4145cb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:53:55, skipping insertion in model container [2022-11-20 11:53:55,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:53:55" (3/3) ... [2022-11-20 11:53:55,692 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2022-11-20 11:53:55,709 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:53:55,742 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:53:55,742 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 11:53:55,742 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:53:55,807 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 11:53:55,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 195 places, 197 transitions, 410 flow [2022-11-20 11:53:55,932 INFO L130 PetriNetUnfolder]: 10/240 cut-off events. [2022-11-20 11:53:55,932 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 11:53:55,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 240 events. 10/240 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 417 event pairs, 0 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 141. Up to 4 conditions per place. [2022-11-20 11:53:55,939 INFO L82 GeneralOperation]: Start removeDead. Operand has 195 places, 197 transitions, 410 flow [2022-11-20 11:53:55,944 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 166 places, 163 transitions, 335 flow [2022-11-20 11:53:55,954 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:53:55,960 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=LoopsAndPotentialCycles, 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;@7eb925d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:53:55,961 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-20 11:53:55,983 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2022-11-20 11:53:55,983 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:53:55,983 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:53:55,984 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:53:55,984 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:53:55,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:55,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1371300828, now seen corresponding path program 1 times [2022-11-20 11:53:55,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:53:56,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906328284] [2022-11-20 11:53:56,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:56,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:53:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:58,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:58,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:53:58,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906328284] [2022-11-20 11:53:58,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906328284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:53:58,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:53:58,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-20 11:53:58,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636439429] [2022-11-20 11:53:58,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:58,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 11:53:58,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:53:58,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 11:53:58,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:53:58,873 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 197 [2022-11-20 11:53:58,882 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 163 transitions, 335 flow. Second operand has 16 states, 16 states have (on average 134.6875) internal successors, (2155), 16 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:53:58,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:53:58,883 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 197 [2022-11-20 11:53:58,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:54:00,997 INFO L130 PetriNetUnfolder]: 1050/4238 cut-off events. [2022-11-20 11:54:00,997 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-20 11:54:01,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6041 conditions, 4238 events. 1050/4238 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 41324 event pairs, 649 based on Foata normal form. 162/3933 useless extension candidates. Maximal degree in co-relation 5899. Up to 1236 conditions per place. [2022-11-20 11:54:01,028 INFO L137 encePairwiseOnDemand]: 174/197 looper letters, 80 selfloop transitions, 25 changer transitions 4/214 dead transitions. [2022-11-20 11:54:01,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 214 transitions, 654 flow [2022-11-20 11:54:01,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 11:54:01,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 11:54:01,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2513 transitions. [2022-11-20 11:54:01,057 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7086858432036097 [2022-11-20 11:54:01,058 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2513 transitions. [2022-11-20 11:54:01,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2513 transitions. [2022-11-20 11:54:01,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:54:01,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2513 transitions. [2022-11-20 11:54:01,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 139.61111111111111) internal successors, (2513), 18 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:01,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 197.0) internal successors, (3743), 19 states have internal predecessors, (3743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:01,092 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 197.0) internal successors, (3743), 19 states have internal predecessors, (3743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:01,094 INFO L175 Difference]: Start difference. First operand has 166 places, 163 transitions, 335 flow. Second operand 18 states and 2513 transitions. [2022-11-20 11:54:01,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 214 transitions, 654 flow [2022-11-20 11:54:01,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 214 transitions, 648 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 11:54:01,106 INFO L231 Difference]: Finished difference. Result has 185 places, 171 transitions, 457 flow [2022-11-20 11:54:01,108 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=457, PETRI_PLACES=185, PETRI_TRANSITIONS=171} [2022-11-20 11:54:01,112 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 19 predicate places. [2022-11-20 11:54:01,112 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 171 transitions, 457 flow [2022-11-20 11:54:01,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 134.6875) internal successors, (2155), 16 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:01,115 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:54:01,115 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:01,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:54:01,116 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:54:01,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:01,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1550483823, now seen corresponding path program 1 times [2022-11-20 11:54:01,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:54:01,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099086587] [2022-11-20 11:54:01,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:01,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:54:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:03,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:54:03,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:54:03,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099086587] [2022-11-20 11:54:03,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099086587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:03,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:03,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-20 11:54:03,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025856168] [2022-11-20 11:54:03,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:03,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 11:54:03,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:54:03,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 11:54:03,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:54:03,013 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 197 [2022-11-20 11:54:03,016 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 171 transitions, 457 flow. Second operand has 22 states, 22 states have (on average 95.9090909090909) internal successors, (2110), 22 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:03,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:54:03,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 197 [2022-11-20 11:54:03,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:54:06,048 INFO L130 PetriNetUnfolder]: 3176/6951 cut-off events. [2022-11-20 11:54:06,048 INFO L131 PetriNetUnfolder]: For 2854/2863 co-relation queries the response was YES. [2022-11-20 11:54:06,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13963 conditions, 6951 events. 3176/6951 cut-off events. For 2854/2863 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 58664 event pairs, 1367 based on Foata normal form. 168/6672 useless extension candidates. Maximal degree in co-relation 13222. Up to 3261 conditions per place. [2022-11-20 11:54:06,101 INFO L137 encePairwiseOnDemand]: 174/197 looper letters, 150 selfloop transitions, 45 changer transitions 2/276 dead transitions. [2022-11-20 11:54:06,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 276 transitions, 1135 flow [2022-11-20 11:54:06,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 11:54:06,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 11:54:06,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2167 transitions. [2022-11-20 11:54:06,109 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2022-11-20 11:54:06,109 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2167 transitions. [2022-11-20 11:54:06,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2167 transitions. [2022-11-20 11:54:06,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:54:06,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2167 transitions. [2022-11-20 11:54:06,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 103.19047619047619) internal successors, (2167), 21 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:06,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 197.0) internal successors, (4334), 22 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:06,127 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 197.0) internal successors, (4334), 22 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:06,127 INFO L175 Difference]: Start difference. First operand has 185 places, 171 transitions, 457 flow. Second operand 21 states and 2167 transitions. [2022-11-20 11:54:06,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 276 transitions, 1135 flow [2022-11-20 11:54:06,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 276 transitions, 1124 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:54:06,171 INFO L231 Difference]: Finished difference. Result has 206 places, 199 transitions, 711 flow [2022-11-20 11:54:06,171 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=711, PETRI_PLACES=206, PETRI_TRANSITIONS=199} [2022-11-20 11:54:06,172 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 40 predicate places. [2022-11-20 11:54:06,172 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 199 transitions, 711 flow [2022-11-20 11:54:06,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 95.9090909090909) internal successors, (2110), 22 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:06,174 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:54:06,174 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:06,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:54:06,174 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:54:06,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:06,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1996303698, now seen corresponding path program 1 times [2022-11-20 11:54:06,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:54:06,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528948702] [2022-11-20 11:54:06,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:06,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:54:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:07,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:54:07,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:54:07,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528948702] [2022-11-20 11:54:07,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528948702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:07,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:07,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-20 11:54:07,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421598887] [2022-11-20 11:54:07,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:07,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 11:54:07,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:54:08,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 11:54:08,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:54:08,003 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 197 [2022-11-20 11:54:08,007 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 199 transitions, 711 flow. Second operand has 22 states, 22 states have (on average 95.95454545454545) internal successors, (2111), 22 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:08,007 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:54:08,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 197 [2022-11-20 11:54:08,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:54:12,003 INFO L130 PetriNetUnfolder]: 6088/13999 cut-off events. [2022-11-20 11:54:12,004 INFO L131 PetriNetUnfolder]: For 9246/11313 co-relation queries the response was YES. [2022-11-20 11:54:12,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31117 conditions, 13999 events. 6088/13999 cut-off events. For 9246/11313 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 134094 event pairs, 2445 based on Foata normal form. 57/12917 useless extension candidates. Maximal degree in co-relation 29206. Up to 8450 conditions per place. [2022-11-20 11:54:12,173 INFO L137 encePairwiseOnDemand]: 174/197 looper letters, 154 selfloop transitions, 63 changer transitions 5/313 dead transitions. [2022-11-20 11:54:12,174 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 313 transitions, 1530 flow [2022-11-20 11:54:12,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 11:54:12,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 11:54:12,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2157 transitions. [2022-11-20 11:54:12,182 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5213923132704859 [2022-11-20 11:54:12,182 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2157 transitions. [2022-11-20 11:54:12,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2157 transitions. [2022-11-20 11:54:12,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:54:12,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2157 transitions. [2022-11-20 11:54:12,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 102.71428571428571) internal successors, (2157), 21 states have internal predecessors, (2157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:12,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 197.0) internal successors, (4334), 22 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:12,203 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 197.0) internal successors, (4334), 22 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:12,204 INFO L175 Difference]: Start difference. First operand has 206 places, 199 transitions, 711 flow. Second operand 21 states and 2157 transitions. [2022-11-20 11:54:12,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 313 transitions, 1530 flow [2022-11-20 11:54:12,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 313 transitions, 1469 flow, removed 22 selfloop flow, removed 9 redundant places. [2022-11-20 11:54:12,289 INFO L231 Difference]: Finished difference. Result has 226 places, 238 transitions, 1073 flow [2022-11-20 11:54:12,290 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1073, PETRI_PLACES=226, PETRI_TRANSITIONS=238} [2022-11-20 11:54:12,290 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 60 predicate places. [2022-11-20 11:54:12,291 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 238 transitions, 1073 flow [2022-11-20 11:54:12,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 95.95454545454545) internal successors, (2111), 22 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:12,292 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:54:12,292 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:12,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:54:12,293 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:54:12,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:12,294 INFO L85 PathProgramCache]: Analyzing trace with hash 927396420, now seen corresponding path program 1 times [2022-11-20 11:54:12,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:54:12,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081793768] [2022-11-20 11:54:12,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:12,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:54:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:14,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:54:14,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:54:14,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081793768] [2022-11-20 11:54:14,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081793768] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:14,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:14,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-20 11:54:14,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126816804] [2022-11-20 11:54:14,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:14,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 11:54:14,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:54:14,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 11:54:14,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:54:14,136 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-11-20 11:54:14,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 238 transitions, 1073 flow. Second operand has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:14,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:54:14,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-11-20 11:54:14,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:54:21,342 INFO L130 PetriNetUnfolder]: 6738/14897 cut-off events. [2022-11-20 11:54:21,342 INFO L131 PetriNetUnfolder]: For 12838/15870 co-relation queries the response was YES. [2022-11-20 11:54:21,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35533 conditions, 14897 events. 6738/14897 cut-off events. For 12838/15870 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 137853 event pairs, 1902 based on Foata normal form. 189/14329 useless extension candidates. Maximal degree in co-relation 33731. Up to 3515 conditions per place. [2022-11-20 11:54:21,488 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 512 selfloop transitions, 87 changer transitions 4/694 dead transitions. [2022-11-20 11:54:21,488 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 694 transitions, 4184 flow [2022-11-20 11:54:21,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-20 11:54:21,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-20 11:54:21,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3862 transitions. [2022-11-20 11:54:21,499 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5765900268736937 [2022-11-20 11:54:21,499 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3862 transitions. [2022-11-20 11:54:21,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3862 transitions. [2022-11-20 11:54:21,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:54:21,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3862 transitions. [2022-11-20 11:54:21,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 113.58823529411765) internal successors, (3862), 34 states have internal predecessors, (3862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:21,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:21,531 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:21,532 INFO L175 Difference]: Start difference. First operand has 226 places, 238 transitions, 1073 flow. Second operand 34 states and 3862 transitions. [2022-11-20 11:54:21,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 694 transitions, 4184 flow [2022-11-20 11:54:21,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 694 transitions, 4115 flow, removed 27 selfloop flow, removed 8 redundant places. [2022-11-20 11:54:21,617 INFO L231 Difference]: Finished difference. Result has 263 places, 294 transitions, 1665 flow [2022-11-20 11:54:21,617 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=1034, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=1665, PETRI_PLACES=263, PETRI_TRANSITIONS=294} [2022-11-20 11:54:21,619 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 97 predicate places. [2022-11-20 11:54:21,619 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 294 transitions, 1665 flow [2022-11-20 11:54:21,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:21,626 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:54:21,626 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:21,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:54:21,627 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:54:21,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:21,627 INFO L85 PathProgramCache]: Analyzing trace with hash 206731432, now seen corresponding path program 1 times [2022-11-20 11:54:21,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:54:21,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718099300] [2022-11-20 11:54:21,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:21,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:54:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:23,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:54:23,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:54:23,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718099300] [2022-11-20 11:54:23,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718099300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:23,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:23,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-20 11:54:23,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808442960] [2022-11-20 11:54:23,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:23,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 11:54:23,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:54:23,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 11:54:23,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:54:23,226 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-11-20 11:54:23,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 294 transitions, 1665 flow. Second operand has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:23,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:54:23,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-11-20 11:54:23,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:54:31,670 INFO L130 PetriNetUnfolder]: 9923/22569 cut-off events. [2022-11-20 11:54:31,671 INFO L131 PetriNetUnfolder]: For 37032/43837 co-relation queries the response was YES. [2022-11-20 11:54:31,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62745 conditions, 22569 events. 9923/22569 cut-off events. For 37032/43837 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 235230 event pairs, 3104 based on Foata normal form. 400/21812 useless extension candidates. Maximal degree in co-relation 62347. Up to 5226 conditions per place. [2022-11-20 11:54:31,947 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 557 selfloop transitions, 115 changer transitions 4/767 dead transitions. [2022-11-20 11:54:31,948 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 767 transitions, 5325 flow [2022-11-20 11:54:31,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-20 11:54:31,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-20 11:54:31,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3888 transitions. [2022-11-20 11:54:31,959 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5804717826216781 [2022-11-20 11:54:31,959 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3888 transitions. [2022-11-20 11:54:31,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3888 transitions. [2022-11-20 11:54:31,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:54:31,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3888 transitions. [2022-11-20 11:54:31,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 114.3529411764706) internal successors, (3888), 34 states have internal predecessors, (3888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:31,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:31,987 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:31,988 INFO L175 Difference]: Start difference. First operand has 263 places, 294 transitions, 1665 flow. Second operand 34 states and 3888 transitions. [2022-11-20 11:54:31,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 767 transitions, 5325 flow [2022-11-20 11:54:32,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 767 transitions, 5263 flow, removed 8 selfloop flow, removed 14 redundant places. [2022-11-20 11:54:32,340 INFO L231 Difference]: Finished difference. Result has 295 places, 337 transitions, 2442 flow [2022-11-20 11:54:32,341 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=1603, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=2442, PETRI_PLACES=295, PETRI_TRANSITIONS=337} [2022-11-20 11:54:32,345 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 129 predicate places. [2022-11-20 11:54:32,345 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 337 transitions, 2442 flow [2022-11-20 11:54:32,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:32,354 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:54:32,355 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:32,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:54:32,355 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:54:32,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:32,356 INFO L85 PathProgramCache]: Analyzing trace with hash 465082248, now seen corresponding path program 2 times [2022-11-20 11:54:32,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:54:32,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206895871] [2022-11-20 11:54:32,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:32,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:54:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:33,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:54:33,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:54:33,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206895871] [2022-11-20 11:54:33,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206895871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:33,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:33,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-11-20 11:54:33,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686611207] [2022-11-20 11:54:33,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:33,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 11:54:33,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:54:33,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 11:54:33,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:54:33,895 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-11-20 11:54:33,897 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 337 transitions, 2442 flow. Second operand has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:33,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:54:33,898 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-11-20 11:54:33,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:54:42,982 INFO L130 PetriNetUnfolder]: 10803/24438 cut-off events. [2022-11-20 11:54:42,982 INFO L131 PetriNetUnfolder]: For 79390/87793 co-relation queries the response was YES. [2022-11-20 11:54:43,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77921 conditions, 24438 events. 10803/24438 cut-off events. For 79390/87793 co-relation queries the response was YES. Maximal size of possible extension queue 832. Compared 255494 event pairs, 4088 based on Foata normal form. 257/23382 useless extension candidates. Maximal degree in co-relation 77458. Up to 5226 conditions per place. [2022-11-20 11:54:43,459 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 589 selfloop transitions, 119 changer transitions 2/801 dead transitions. [2022-11-20 11:54:43,459 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 801 transitions, 6597 flow [2022-11-20 11:54:43,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-20 11:54:43,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-20 11:54:43,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3883 transitions. [2022-11-20 11:54:43,469 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5797252911316811 [2022-11-20 11:54:43,469 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3883 transitions. [2022-11-20 11:54:43,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3883 transitions. [2022-11-20 11:54:43,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:54:43,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3883 transitions. [2022-11-20 11:54:43,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 114.20588235294117) internal successors, (3883), 34 states have internal predecessors, (3883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:43,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:43,494 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:43,494 INFO L175 Difference]: Start difference. First operand has 295 places, 337 transitions, 2442 flow. Second operand 34 states and 3883 transitions. [2022-11-20 11:54:43,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 801 transitions, 6597 flow [2022-11-20 11:54:43,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 801 transitions, 6449 flow, removed 39 selfloop flow, removed 19 redundant places. [2022-11-20 11:54:43,996 INFO L231 Difference]: Finished difference. Result has 321 places, 369 transitions, 3107 flow [2022-11-20 11:54:43,997 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=2340, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=3107, PETRI_PLACES=321, PETRI_TRANSITIONS=369} [2022-11-20 11:54:43,997 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 155 predicate places. [2022-11-20 11:54:43,998 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 369 transitions, 3107 flow [2022-11-20 11:54:43,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:43,999 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:54:43,999 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:43,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:54:43,999 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:54:43,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:44,000 INFO L85 PathProgramCache]: Analyzing trace with hash 404143428, now seen corresponding path program 3 times [2022-11-20 11:54:44,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:54:44,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049166756] [2022-11-20 11:54:44,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:44,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:54:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:45,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:54:45,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:54:45,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049166756] [2022-11-20 11:54:45,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049166756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:45,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:45,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-11-20 11:54:45,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033946948] [2022-11-20 11:54:45,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:45,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 11:54:45,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:54:45,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 11:54:45,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:54:45,570 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-11-20 11:54:45,574 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 369 transitions, 3107 flow. Second operand has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:45,574 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:54:45,574 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-11-20 11:54:45,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:54:55,239 INFO L130 PetriNetUnfolder]: 11146/25351 cut-off events. [2022-11-20 11:54:55,240 INFO L131 PetriNetUnfolder]: For 96032/104515 co-relation queries the response was YES. [2022-11-20 11:54:55,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84209 conditions, 25351 events. 11146/25351 cut-off events. For 96032/104515 co-relation queries the response was YES. Maximal size of possible extension queue 856. Compared 268293 event pairs, 3967 based on Foata normal form. 282/24292 useless extension candidates. Maximal degree in co-relation 83907. Up to 5226 conditions per place. [2022-11-20 11:54:55,616 INFO L137 encePairwiseOnDemand]: 171/197 looper letters, 571 selfloop transitions, 135 changer transitions 2/799 dead transitions. [2022-11-20 11:54:55,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 799 transitions, 6995 flow [2022-11-20 11:54:55,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-20 11:54:55,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-20 11:54:55,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3872 transitions. [2022-11-20 11:54:55,629 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5780830098536877 [2022-11-20 11:54:55,629 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3872 transitions. [2022-11-20 11:54:55,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3872 transitions. [2022-11-20 11:54:55,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:54:55,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3872 transitions. [2022-11-20 11:54:55,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 113.88235294117646) internal successors, (3872), 34 states have internal predecessors, (3872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:55,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:55,649 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:55,650 INFO L175 Difference]: Start difference. First operand has 321 places, 369 transitions, 3107 flow. Second operand 34 states and 3872 transitions. [2022-11-20 11:54:55,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 799 transitions, 6995 flow [2022-11-20 11:54:56,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 799 transitions, 6633 flow, removed 140 selfloop flow, removed 20 redundant places. [2022-11-20 11:54:56,446 INFO L231 Difference]: Finished difference. Result has 340 places, 386 transitions, 3599 flow [2022-11-20 11:54:56,447 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=2957, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=3599, PETRI_PLACES=340, PETRI_TRANSITIONS=386} [2022-11-20 11:54:56,447 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 174 predicate places. [2022-11-20 11:54:56,447 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 386 transitions, 3599 flow [2022-11-20 11:54:56,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:56,448 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:54:56,448 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:56,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:54:56,448 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:54:56,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:56,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1815221092, now seen corresponding path program 4 times [2022-11-20 11:54:56,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:54:56,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971525801] [2022-11-20 11:54:56,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:56,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:54:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:58,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:54:58,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:54:58,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971525801] [2022-11-20 11:54:58,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971525801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:58,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:58,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-20 11:54:58,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897069045] [2022-11-20 11:54:58,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:58,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-20 11:54:58,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:54:58,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-20 11:54:58,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-11-20 11:54:58,494 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 197 [2022-11-20 11:54:58,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 386 transitions, 3599 flow. Second operand has 28 states, 28 states have (on average 88.78571428571429) internal successors, (2486), 28 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:54:58,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:54:58,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 197 [2022-11-20 11:54:58,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:55:10,227 INFO L130 PetriNetUnfolder]: 18126/37692 cut-off events. [2022-11-20 11:55:10,227 INFO L131 PetriNetUnfolder]: For 132517/142415 co-relation queries the response was YES. [2022-11-20 11:55:10,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122628 conditions, 37692 events. 18126/37692 cut-off events. For 132517/142415 co-relation queries the response was YES. Maximal size of possible extension queue 1128. Compared 384770 event pairs, 6828 based on Foata normal form. 466/36381 useless extension candidates. Maximal degree in co-relation 122305. Up to 23990 conditions per place. [2022-11-20 11:55:10,861 INFO L137 encePairwiseOnDemand]: 168/197 looper letters, 323 selfloop transitions, 189 changer transitions 7/595 dead transitions. [2022-11-20 11:55:10,861 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 595 transitions, 5969 flow [2022-11-20 11:55:10,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-20 11:55:10,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-20 11:55:10,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2554 transitions. [2022-11-20 11:55:10,867 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4986333463490824 [2022-11-20 11:55:10,867 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2554 transitions. [2022-11-20 11:55:10,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2554 transitions. [2022-11-20 11:55:10,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:10,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2554 transitions. [2022-11-20 11:55:10,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 98.23076923076923) internal successors, (2554), 26 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:10,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 197.0) internal successors, (5319), 27 states have internal predecessors, (5319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:10,885 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 197.0) internal successors, (5319), 27 states have internal predecessors, (5319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:10,885 INFO L175 Difference]: Start difference. First operand has 340 places, 386 transitions, 3599 flow. Second operand 26 states and 2554 transitions. [2022-11-20 11:55:10,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 595 transitions, 5969 flow [2022-11-20 11:55:11,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 595 transitions, 5759 flow, removed 10 selfloop flow, removed 26 redundant places. [2022-11-20 11:55:11,924 INFO L231 Difference]: Finished difference. Result has 349 places, 444 transitions, 4452 flow [2022-11-20 11:55:11,925 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=3408, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=4452, PETRI_PLACES=349, PETRI_TRANSITIONS=444} [2022-11-20 11:55:11,925 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 183 predicate places. [2022-11-20 11:55:11,925 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 444 transitions, 4452 flow [2022-11-20 11:55:11,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 88.78571428571429) internal successors, (2486), 28 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:11,926 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:55:11,927 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:11,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:55:11,927 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:55:11,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:11,927 INFO L85 PathProgramCache]: Analyzing trace with hash -732265470, now seen corresponding path program 2 times [2022-11-20 11:55:11,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:11,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763310276] [2022-11-20 11:55:11,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:11,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:13,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:55:13,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:13,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763310276] [2022-11-20 11:55:13,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763310276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:13,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:13,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-20 11:55:13,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630418136] [2022-11-20 11:55:13,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:13,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-20 11:55:13,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:13,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-20 11:55:13,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-11-20 11:55:13,913 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 197 [2022-11-20 11:55:13,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 444 transitions, 4452 flow. Second operand has 28 states, 28 states have (on average 88.78571428571429) internal successors, (2486), 28 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:13,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:55:13,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 197 [2022-11-20 11:55:13,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand