./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_3-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_5128470a-6589-4f0a-97ac-499a05b0b247/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5128470a-6589-4f0a-97ac-499a05b0b247/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_5128470a-6589-4f0a-97ac-499a05b0b247/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5128470a-6589-4f0a-97ac-499a05b0b247/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5128470a-6589-4f0a-97ac-499a05b0b247/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_5128470a-6589-4f0a-97ac-499a05b0b247/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 a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --- 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 10:47:49,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:47:49,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:47:49,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:47:49,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:47:49,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:47:49,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:47:49,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:47:49,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:47:49,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:47:49,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:47:49,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:47:49,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:47:49,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:47:49,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:47:49,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:47:49,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:47:49,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:47:49,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:47:49,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:47:49,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:47:49,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:47:49,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:47:49,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:47:49,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:47:49,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:47:49,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:47:49,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:47:49,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:47:49,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:47:49,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:47:49,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:47:49,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:47:49,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:47:49,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:47:49,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:47:49,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:47:49,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:47:49,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:47:49,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:47:49,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:47:49,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5128470a-6589-4f0a-97ac-499a05b0b247/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 10:47:49,506 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:47:49,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:47:49,507 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:47:49,508 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:47:49,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:47:49,509 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:47:49,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:47:49,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:47:49,510 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:47:49,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:47:49,510 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:47:49,511 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:47:49,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:47:49,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:47:49,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:47:49,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:47:49,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:47:49,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:47:49,512 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 10:47:49,513 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:47:49,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:47:49,513 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:47:49,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:47:49,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:47:49,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:47:49,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:47:49,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:47:49,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:47:49,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:47:49,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:47:49,516 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:47:49,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:47:49,516 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:47:49,516 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:47:49,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:47:49,517 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_5128470a-6589-4f0a-97ac-499a05b0b247/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5128470a-6589-4f0a-97ac-499a05b0b247/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 [2022-11-20 10:47:49,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:47:49,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:47:49,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:47:49,781 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:47:49,782 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:47:49,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5128470a-6589-4f0a-97ac-499a05b0b247/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-11-20 10:47:52,840 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:47:53,158 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:47:53,159 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5128470a-6589-4f0a-97ac-499a05b0b247/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-11-20 10:47:53,189 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5128470a-6589-4f0a-97ac-499a05b0b247/bin/uautomizer-ug76WZFUDN/data/37cb95c78/29f0054bbd384a19bcebf3e3295a03a6/FLAGd3f6095bf [2022-11-20 10:47:53,206 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5128470a-6589-4f0a-97ac-499a05b0b247/bin/uautomizer-ug76WZFUDN/data/37cb95c78/29f0054bbd384a19bcebf3e3295a03a6 [2022-11-20 10:47:53,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:47:53,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:47:53,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:47:53,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:47:53,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:47:53,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:47:53" (1/1) ... [2022-11-20 10:47:53,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13160fb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:53, skipping insertion in model container [2022-11-20 10:47:53,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:47:53" (1/1) ... [2022-11-20 10:47:53,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:47:53,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:47:53,565 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 10:47:54,069 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_5128470a-6589-4f0a-97ac-499a05b0b247/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-11-20 10:47:54,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:47:54,122 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:47:54,135 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 10:47:54,203 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_5128470a-6589-4f0a-97ac-499a05b0b247/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-11-20 10:47:54,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:47:54,367 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:47:54,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:54 WrapperNode [2022-11-20 10:47:54,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:47:54,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:47:54,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:47:54,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:47:54,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:54" (1/1) ... [2022-11-20 10:47:54,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:54" (1/1) ... [2022-11-20 10:47:54,471 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-11-20 10:47:54,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:47:54,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:47:54,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:47:54,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:47:54,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:54" (1/1) ... [2022-11-20 10:47:54,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:54" (1/1) ... [2022-11-20 10:47:54,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:54" (1/1) ... [2022-11-20 10:47:54,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:54" (1/1) ... [2022-11-20 10:47:54,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:54" (1/1) ... [2022-11-20 10:47:54,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:54" (1/1) ... [2022-11-20 10:47:54,529 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:54" (1/1) ... [2022-11-20 10:47:54,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:54" (1/1) ... [2022-11-20 10:47:54,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:47:54,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:47:54,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:47:54,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:47:54,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:54" (1/1) ... [2022-11-20 10:47:54,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:47:54,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5128470a-6589-4f0a-97ac-499a05b0b247/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:47:54,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5128470a-6589-4f0a-97ac-499a05b0b247/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:47:54,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5128470a-6589-4f0a-97ac-499a05b0b247/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:47:54,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 10:47:54,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:47:54,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 10:47:54,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:47:54,619 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 10:47:54,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:47:54,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:47:54,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:47:54,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:47:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-20 10:47:54,620 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-20 10:47:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:47:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:47:54,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:47:54,622 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 10:47:54,962 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:47:54,965 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:47:55,285 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:47:55,388 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:47:55,389 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:47:55,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:47:55 BoogieIcfgContainer [2022-11-20 10:47:55,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:47:55,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:47:55,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:47:55,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:47:55,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:47:53" (1/3) ... [2022-11-20 10:47:55,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274a782c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:47:55, skipping insertion in model container [2022-11-20 10:47:55,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:54" (2/3) ... [2022-11-20 10:47:55,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274a782c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:47:55, skipping insertion in model container [2022-11-20 10:47:55,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:47:55" (3/3) ... [2022-11-20 10:47:55,401 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2022-11-20 10:47:55,410 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:47:55,421 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:47:55,421 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 10:47:55,422 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:47:55,484 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 10:47:55,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 173 transitions, 362 flow [2022-11-20 10:47:55,622 INFO L130 PetriNetUnfolder]: 8/216 cut-off events. [2022-11-20 10:47:55,626 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 10:47:55,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 216 events. 8/216 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 349 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2022-11-20 10:47:55,633 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 173 transitions, 362 flow [2022-11-20 10:47:55,643 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 139 transitions, 287 flow [2022-11-20 10:47:55,663 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:47:55,670 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;@2261c26a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:47:55,671 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-20 10:47:55,689 INFO L130 PetriNetUnfolder]: 0/69 cut-off events. [2022-11-20 10:47:55,690 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:47:55,690 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:47:55,691 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] [2022-11-20 10:47:55,691 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 10:47:55,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:47:55,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1131939205, now seen corresponding path program 1 times [2022-11-20 10:47:55,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:47:55,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806611501] [2022-11-20 10:47:55,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:47:55,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:47:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:57,693 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 10:47:57,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:47:57,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806611501] [2022-11-20 10:47:57,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806611501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:47:57,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:47:57,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-20 10:47:57,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586798210] [2022-11-20 10:47:57,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:47:57,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 10:47:57,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:47:57,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 10:47:57,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:47:57,750 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 173 [2022-11-20 10:47:57,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 139 transitions, 287 flow. Second operand has 15 states, 15 states have (on average 114.66666666666667) internal successors, (1720), 15 states have internal predecessors, (1720), 0 states have call successors, (0), 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 10:47:57,756 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:47:57,756 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 173 [2022-11-20 10:47:57,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:48:00,312 INFO L130 PetriNetUnfolder]: 1577/5303 cut-off events. [2022-11-20 10:48:00,313 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-11-20 10:48:00,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7960 conditions, 5303 events. 1577/5303 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 48623 event pairs, 1104 based on Foata normal form. 160/4738 useless extension candidates. Maximal degree in co-relation 7751. Up to 1945 conditions per place. [2022-11-20 10:48:00,354 INFO L137 encePairwiseOnDemand]: 153/173 looper letters, 82 selfloop transitions, 23 changer transitions 2/194 dead transitions. [2022-11-20 10:48:00,354 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 194 transitions, 617 flow [2022-11-20 10:48:00,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 10:48:00,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 10:48:00,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2151 transitions. [2022-11-20 10:48:00,379 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6907514450867052 [2022-11-20 10:48:00,380 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2151 transitions. [2022-11-20 10:48:00,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2151 transitions. [2022-11-20 10:48:00,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:48:00,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2151 transitions. [2022-11-20 10:48:00,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 119.5) internal successors, (2151), 18 states have internal predecessors, (2151), 0 states have call successors, (0), 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 10:48:00,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 173.0) internal successors, (3287), 19 states have internal predecessors, (3287), 0 states have call successors, (0), 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 10:48:00,413 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 173.0) internal successors, (3287), 19 states have internal predecessors, (3287), 0 states have call successors, (0), 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 10:48:00,415 INFO L175 Difference]: Start difference. First operand has 144 places, 139 transitions, 287 flow. Second operand 18 states and 2151 transitions. [2022-11-20 10:48:00,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 194 transitions, 617 flow [2022-11-20 10:48:00,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 194 transitions, 609 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 10:48:00,428 INFO L231 Difference]: Finished difference. Result has 165 places, 150 transitions, 403 flow [2022-11-20 10:48:00,431 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=403, PETRI_PLACES=165, PETRI_TRANSITIONS=150} [2022-11-20 10:48:00,436 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 21 predicate places. [2022-11-20 10:48:00,437 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 150 transitions, 403 flow [2022-11-20 10:48:00,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 114.66666666666667) internal successors, (1720), 15 states have internal predecessors, (1720), 0 states have call successors, (0), 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 10:48:00,438 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:48:00,438 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] [2022-11-20 10:48:00,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:48:00,439 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 10:48:00,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:00,440 INFO L85 PathProgramCache]: Analyzing trace with hash -132118850, now seen corresponding path program 1 times [2022-11-20 10:48:00,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:48:00,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505634486] [2022-11-20 10:48:00,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:00,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:48:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:01,795 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 10:48:01,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:48:01,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505634486] [2022-11-20 10:48:01,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505634486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:01,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:01,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-20 10:48:01,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629594660] [2022-11-20 10:48:01,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:01,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 10:48:01,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:48:01,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 10:48:01,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:48:01,802 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-20 10:48:01,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 150 transitions, 403 flow. Second operand has 19 states, 19 states have (on average 105.6842105263158) internal successors, (2008), 19 states have internal predecessors, (2008), 0 states have call successors, (0), 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 10:48:01,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:48:01,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-20 10:48:01,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:48:04,570 INFO L130 PetriNetUnfolder]: 2139/6443 cut-off events. [2022-11-20 10:48:04,570 INFO L131 PetriNetUnfolder]: For 1311/1331 co-relation queries the response was YES. [2022-11-20 10:48:04,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11241 conditions, 6443 events. 2139/6443 cut-off events. For 1311/1331 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 59201 event pairs, 1327 based on Foata normal form. 83/5760 useless extension candidates. Maximal degree in co-relation 10514. Up to 2231 conditions per place. [2022-11-20 10:48:04,613 INFO L137 encePairwiseOnDemand]: 150/173 looper letters, 108 selfloop transitions, 44 changer transitions 2/233 dead transitions. [2022-11-20 10:48:04,614 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 233 transitions, 948 flow [2022-11-20 10:48:04,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 10:48:04,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 10:48:04,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2336 transitions. [2022-11-20 10:48:04,620 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6429947701624003 [2022-11-20 10:48:04,620 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2336 transitions. [2022-11-20 10:48:04,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2336 transitions. [2022-11-20 10:48:04,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:48:04,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2336 transitions. [2022-11-20 10:48:04,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 111.23809523809524) internal successors, (2336), 21 states have internal predecessors, (2336), 0 states have call successors, (0), 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 10:48:04,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 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 10:48:04,635 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 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 10:48:04,635 INFO L175 Difference]: Start difference. First operand has 165 places, 150 transitions, 403 flow. Second operand 21 states and 2336 transitions. [2022-11-20 10:48:04,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 233 transitions, 948 flow [2022-11-20 10:48:04,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 233 transitions, 937 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 10:48:04,657 INFO L231 Difference]: Finished difference. Result has 189 places, 179 transitions, 657 flow [2022-11-20 10:48:04,657 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=657, PETRI_PLACES=189, PETRI_TRANSITIONS=179} [2022-11-20 10:48:04,658 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 45 predicate places. [2022-11-20 10:48:04,659 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 179 transitions, 657 flow [2022-11-20 10:48:04,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 105.6842105263158) internal successors, (2008), 19 states have internal predecessors, (2008), 0 states have call successors, (0), 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 10:48:04,661 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:48:04,661 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] [2022-11-20 10:48:04,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:48:04,662 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 10:48:04,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:04,663 INFO L85 PathProgramCache]: Analyzing trace with hash 917909606, now seen corresponding path program 1 times [2022-11-20 10:48:04,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:48:04,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293001779] [2022-11-20 10:48:04,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:04,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:48:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:06,012 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 10:48:06,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:48:06,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293001779] [2022-11-20 10:48:06,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293001779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:06,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:06,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-20 10:48:06,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749259442] [2022-11-20 10:48:06,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:06,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 10:48:06,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:48:06,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 10:48:06,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:48:06,020 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-20 10:48:06,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 179 transitions, 657 flow. Second operand has 19 states, 19 states have (on average 105.73684210526316) internal successors, (2009), 19 states have internal predecessors, (2009), 0 states have call successors, (0), 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 10:48:06,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:48:06,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-20 10:48:06,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:48:09,688 INFO L130 PetriNetUnfolder]: 3596/12142 cut-off events. [2022-11-20 10:48:09,689 INFO L131 PetriNetUnfolder]: For 9709/10908 co-relation queries the response was YES. [2022-11-20 10:48:09,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23926 conditions, 12142 events. 3596/12142 cut-off events. For 9709/10908 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 129469 event pairs, 1864 based on Foata normal form. 4/11061 useless extension candidates. Maximal degree in co-relation 22441. Up to 5102 conditions per place. [2022-11-20 10:48:09,806 INFO L137 encePairwiseOnDemand]: 150/173 looper letters, 110 selfloop transitions, 64 changer transitions 5/266 dead transitions. [2022-11-20 10:48:09,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 266 transitions, 1404 flow [2022-11-20 10:48:09,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 10:48:09,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 10:48:09,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2324 transitions. [2022-11-20 10:48:09,815 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6396917148362236 [2022-11-20 10:48:09,815 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2324 transitions. [2022-11-20 10:48:09,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2324 transitions. [2022-11-20 10:48:09,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:48:09,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2324 transitions. [2022-11-20 10:48:09,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 110.66666666666667) internal successors, (2324), 21 states have internal predecessors, (2324), 0 states have call successors, (0), 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 10:48:09,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 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 10:48:09,833 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 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 10:48:09,833 INFO L175 Difference]: Start difference. First operand has 189 places, 179 transitions, 657 flow. Second operand 21 states and 2324 transitions. [2022-11-20 10:48:09,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 266 transitions, 1404 flow [2022-11-20 10:48:09,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 266 transitions, 1342 flow, removed 23 selfloop flow, removed 9 redundant places. [2022-11-20 10:48:09,891 INFO L231 Difference]: Finished difference. Result has 209 places, 216 transitions, 1068 flow [2022-11-20 10:48:09,891 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=619, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1068, PETRI_PLACES=209, PETRI_TRANSITIONS=216} [2022-11-20 10:48:09,892 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 65 predicate places. [2022-11-20 10:48:09,892 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 216 transitions, 1068 flow [2022-11-20 10:48:09,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 105.73684210526316) internal successors, (2009), 19 states have internal predecessors, (2009), 0 states have call successors, (0), 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 10:48:09,894 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:48:09,894 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] [2022-11-20 10:48:09,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:48:09,894 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 10:48:09,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:09,895 INFO L85 PathProgramCache]: Analyzing trace with hash 143972341, now seen corresponding path program 1 times [2022-11-20 10:48:09,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:48:09,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159419355] [2022-11-20 10:48:09,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:09,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:48:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:11,420 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 10:48:11,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:48:11,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159419355] [2022-11-20 10:48:11,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159419355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:11,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:11,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 10:48:11,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891012918] [2022-11-20 10:48:11,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:11,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-20 10:48:11,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:48:11,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-20 10:48:11,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:48:11,425 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-20 10:48:11,427 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 216 transitions, 1068 flow. Second operand has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 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 10:48:11,427 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:48:11,427 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-20 10:48:11,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:48:15,348 INFO L130 PetriNetUnfolder]: 3707/13201 cut-off events. [2022-11-20 10:48:15,348 INFO L131 PetriNetUnfolder]: For 10359/11283 co-relation queries the response was YES. [2022-11-20 10:48:15,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27294 conditions, 13201 events. 3707/13201 cut-off events. For 10359/11283 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 146501 event pairs, 2103 based on Foata normal form. 128/12331 useless extension candidates. Maximal degree in co-relation 25905. Up to 4096 conditions per place. [2022-11-20 10:48:15,447 INFO L137 encePairwiseOnDemand]: 152/173 looper letters, 145 selfloop transitions, 55 changer transitions 2/285 dead transitions. [2022-11-20 10:48:15,447 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 285 transitions, 1797 flow [2022-11-20 10:48:15,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 10:48:15,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 10:48:15,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2225 transitions. [2022-11-20 10:48:15,453 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6430635838150289 [2022-11-20 10:48:15,453 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2225 transitions. [2022-11-20 10:48:15,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2225 transitions. [2022-11-20 10:48:15,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:48:15,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2225 transitions. [2022-11-20 10:48:15,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 111.25) internal successors, (2225), 20 states have internal predecessors, (2225), 0 states have call successors, (0), 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 10:48:15,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 173.0) internal successors, (3633), 21 states have internal predecessors, (3633), 0 states have call successors, (0), 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 10:48:15,467 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 173.0) internal successors, (3633), 21 states have internal predecessors, (3633), 0 states have call successors, (0), 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 10:48:15,467 INFO L175 Difference]: Start difference. First operand has 209 places, 216 transitions, 1068 flow. Second operand 20 states and 2225 transitions. [2022-11-20 10:48:15,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 285 transitions, 1797 flow [2022-11-20 10:48:15,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 285 transitions, 1752 flow, removed 15 selfloop flow, removed 8 redundant places. [2022-11-20 10:48:15,541 INFO L231 Difference]: Finished difference. Result has 228 places, 236 transitions, 1354 flow [2022-11-20 10:48:15,542 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=1025, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1354, PETRI_PLACES=228, PETRI_TRANSITIONS=236} [2022-11-20 10:48:15,543 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 84 predicate places. [2022-11-20 10:48:15,543 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 236 transitions, 1354 flow [2022-11-20 10:48:15,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 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 10:48:15,544 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:48:15,544 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] [2022-11-20 10:48:15,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:48:15,545 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 10:48:15,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:15,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1389050335, now seen corresponding path program 1 times [2022-11-20 10:48:15,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:48:15,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811748487] [2022-11-20 10:48:15,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:15,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:48:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:16,808 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 10:48:16,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:48:16,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811748487] [2022-11-20 10:48:16,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811748487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:16,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:16,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 10:48:16,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489040] [2022-11-20 10:48:16,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:16,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-20 10:48:16,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:48:16,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-20 10:48:16,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:48:16,812 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-20 10:48:16,814 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 236 transitions, 1354 flow. Second operand has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 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 10:48:16,814 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:48:16,814 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-20 10:48:16,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:48:20,680 INFO L130 PetriNetUnfolder]: 4530/15851 cut-off events. [2022-11-20 10:48:20,680 INFO L131 PetriNetUnfolder]: For 22560/24057 co-relation queries the response was YES. [2022-11-20 10:48:20,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36062 conditions, 15851 events. 4530/15851 cut-off events. For 22560/24057 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 179985 event pairs, 2181 based on Foata normal form. 130/14806 useless extension candidates. Maximal degree in co-relation 33943. Up to 5969 conditions per place. [2022-11-20 10:48:20,835 INFO L137 encePairwiseOnDemand]: 150/173 looper letters, 128 selfloop transitions, 98 changer transitions 5/322 dead transitions. [2022-11-20 10:48:20,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 322 transitions, 2418 flow [2022-11-20 10:48:20,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 10:48:20,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 10:48:20,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2326 transitions. [2022-11-20 10:48:20,841 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.640242224057253 [2022-11-20 10:48:20,841 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2326 transitions. [2022-11-20 10:48:20,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2326 transitions. [2022-11-20 10:48:20,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:48:20,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2326 transitions. [2022-11-20 10:48:20,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 110.76190476190476) internal successors, (2326), 21 states have internal predecessors, (2326), 0 states have call successors, (0), 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 10:48:20,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 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 10:48:20,856 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 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 10:48:20,856 INFO L175 Difference]: Start difference. First operand has 228 places, 236 transitions, 1354 flow. Second operand 21 states and 2326 transitions. [2022-11-20 10:48:20,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 322 transitions, 2418 flow [2022-11-20 10:48:20,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 322 transitions, 2353 flow, removed 23 selfloop flow, removed 10 redundant places. [2022-11-20 10:48:20,998 INFO L231 Difference]: Finished difference. Result has 246 places, 276 transitions, 2015 flow [2022-11-20 10:48:20,999 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=1313, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2015, PETRI_PLACES=246, PETRI_TRANSITIONS=276} [2022-11-20 10:48:21,002 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 102 predicate places. [2022-11-20 10:48:21,002 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 276 transitions, 2015 flow [2022-11-20 10:48:21,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 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 10:48:21,003 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:48:21,004 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] [2022-11-20 10:48:21,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:48:21,004 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 10:48:21,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:21,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1253474045, now seen corresponding path program 2 times [2022-11-20 10:48:21,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:48:21,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344675537] [2022-11-20 10:48:21,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:21,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:48:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:22,361 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 10:48:22,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:48:22,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344675537] [2022-11-20 10:48:22,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344675537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:22,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:22,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 10:48:22,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629214006] [2022-11-20 10:48:22,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:22,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-20 10:48:22,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:48:22,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-20 10:48:22,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:48:22,367 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-20 10:48:22,370 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 276 transitions, 2015 flow. Second operand has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 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 10:48:22,370 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:48:22,370 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-20 10:48:22,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:48:26,703 INFO L130 PetriNetUnfolder]: 4926/17512 cut-off events. [2022-11-20 10:48:26,703 INFO L131 PetriNetUnfolder]: For 31892/33200 co-relation queries the response was YES. [2022-11-20 10:48:26,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42359 conditions, 17512 events. 4926/17512 cut-off events. For 31892/33200 co-relation queries the response was YES. Maximal size of possible extension queue 505. Compared 203493 event pairs, 2483 based on Foata normal form. 130/16374 useless extension candidates. Maximal degree in co-relation 39619. Up to 5987 conditions per place. [2022-11-20 10:48:26,897 INFO L137 encePairwiseOnDemand]: 150/173 looper letters, 132 selfloop transitions, 118 changer transitions 5/346 dead transitions. [2022-11-20 10:48:26,898 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 346 transitions, 3080 flow [2022-11-20 10:48:26,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 10:48:26,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 10:48:26,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2325 transitions. [2022-11-20 10:48:26,904 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6399669694467383 [2022-11-20 10:48:26,905 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2325 transitions. [2022-11-20 10:48:26,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2325 transitions. [2022-11-20 10:48:26,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:48:26,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2325 transitions. [2022-11-20 10:48:26,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 110.71428571428571) internal successors, (2325), 21 states have internal predecessors, (2325), 0 states have call successors, (0), 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 10:48:26,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 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 10:48:26,938 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 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 10:48:26,938 INFO L175 Difference]: Start difference. First operand has 246 places, 276 transitions, 2015 flow. Second operand 21 states and 2325 transitions. [2022-11-20 10:48:26,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 346 transitions, 3080 flow [2022-11-20 10:48:27,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 346 transitions, 2916 flow, removed 29 selfloop flow, removed 11 redundant places. [2022-11-20 10:48:27,082 INFO L231 Difference]: Finished difference. Result has 260 places, 301 transitions, 2522 flow [2022-11-20 10:48:27,082 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=1886, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2522, PETRI_PLACES=260, PETRI_TRANSITIONS=301} [2022-11-20 10:48:27,085 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 116 predicate places. [2022-11-20 10:48:27,085 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 301 transitions, 2522 flow [2022-11-20 10:48:27,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 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 10:48:27,086 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:48:27,086 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] [2022-11-20 10:48:27,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:48:27,087 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 10:48:27,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:27,087 INFO L85 PathProgramCache]: Analyzing trace with hash 751850441, now seen corresponding path program 3 times [2022-11-20 10:48:27,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:48:27,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381938813] [2022-11-20 10:48:27,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:27,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:48:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:28,506 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 10:48:28,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:48:28,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381938813] [2022-11-20 10:48:28,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381938813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:28,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:28,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 10:48:28,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297729986] [2022-11-20 10:48:28,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:28,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-20 10:48:28,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:48:28,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-20 10:48:28,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:48:28,510 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-20 10:48:28,512 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 301 transitions, 2522 flow. Second operand has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 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 10:48:28,513 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:48:28,513 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-20 10:48:28,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:48:33,046 INFO L130 PetriNetUnfolder]: 5292/18874 cut-off events. [2022-11-20 10:48:33,046 INFO L131 PetriNetUnfolder]: For 45535/47279 co-relation queries the response was YES. [2022-11-20 10:48:33,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47792 conditions, 18874 events. 5292/18874 cut-off events. For 45535/47279 co-relation queries the response was YES. Maximal size of possible extension queue 564. Compared 223117 event pairs, 2883 based on Foata normal form. 130/17617 useless extension candidates. Maximal degree in co-relation 44662. Up to 5947 conditions per place. [2022-11-20 10:48:33,274 INFO L137 encePairwiseOnDemand]: 152/173 looper letters, 158 selfloop transitions, 104 changer transitions 5/358 dead transitions. [2022-11-20 10:48:33,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 358 transitions, 3508 flow [2022-11-20 10:48:33,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 10:48:33,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 10:48:33,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2216 transitions. [2022-11-20 10:48:33,280 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6404624277456648 [2022-11-20 10:48:33,281 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2216 transitions. [2022-11-20 10:48:33,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2216 transitions. [2022-11-20 10:48:33,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:48:33,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2216 transitions. [2022-11-20 10:48:33,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 110.8) internal successors, (2216), 20 states have internal predecessors, (2216), 0 states have call successors, (0), 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 10:48:33,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 173.0) internal successors, (3633), 21 states have internal predecessors, (3633), 0 states have call successors, (0), 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 10:48:33,297 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 173.0) internal successors, (3633), 21 states have internal predecessors, (3633), 0 states have call successors, (0), 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 10:48:33,298 INFO L175 Difference]: Start difference. First operand has 260 places, 301 transitions, 2522 flow. Second operand 20 states and 2216 transitions. [2022-11-20 10:48:33,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 358 transitions, 3508 flow [2022-11-20 10:48:33,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 358 transitions, 3406 flow, removed 26 selfloop flow, removed 13 redundant places. [2022-11-20 10:48:33,504 INFO L231 Difference]: Finished difference. Result has 270 places, 314 transitions, 2920 flow [2022-11-20 10:48:33,504 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=2430, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2920, PETRI_PLACES=270, PETRI_TRANSITIONS=314} [2022-11-20 10:48:33,505 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 126 predicate places. [2022-11-20 10:48:33,505 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 314 transitions, 2920 flow [2022-11-20 10:48:33,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 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 10:48:33,506 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:48:33,506 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] [2022-11-20 10:48:33,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:48:33,507 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 10:48:33,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:33,507 INFO L85 PathProgramCache]: Analyzing trace with hash 168091100, now seen corresponding path program 1 times [2022-11-20 10:48:33,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:48:33,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780349306] [2022-11-20 10:48:33,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:33,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:48:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:34,166 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 10:48:34,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:48:34,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780349306] [2022-11-20 10:48:34,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780349306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:34,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:34,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 10:48:34,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574662992] [2022-11-20 10:48:34,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:34,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:48:34,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:48:34,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:48:34,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:48:34,170 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 173 [2022-11-20 10:48:34,171 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 314 transitions, 2920 flow. Second operand has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 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 10:48:34,171 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:48:34,171 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 173 [2022-11-20 10:48:34,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:48:39,048 INFO L130 PetriNetUnfolder]: 5188/23093 cut-off events. [2022-11-20 10:48:39,049 INFO L131 PetriNetUnfolder]: For 63458/65816 co-relation queries the response was YES. [2022-11-20 10:48:39,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55859 conditions, 23093 events. 5188/23093 cut-off events. For 63458/65816 co-relation queries the response was YES. Maximal size of possible extension queue 851. Compared 306832 event pairs, 1629 based on Foata normal form. 185/21651 useless extension candidates. Maximal degree in co-relation 53496. Up to 4820 conditions per place. [2022-11-20 10:48:39,266 INFO L137 encePairwiseOnDemand]: 157/173 looper letters, 326 selfloop transitions, 48 changer transitions 2/485 dead transitions. [2022-11-20 10:48:39,266 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 485 transitions, 5253 flow [2022-11-20 10:48:39,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:48:39,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 10:48:39,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1460 transitions. [2022-11-20 10:48:39,279 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.767209668943773 [2022-11-20 10:48:39,279 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1460 transitions. [2022-11-20 10:48:39,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1460 transitions. [2022-11-20 10:48:39,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:48:39,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1460 transitions. [2022-11-20 10:48:39,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 132.72727272727272) internal successors, (1460), 11 states have internal predecessors, (1460), 0 states have call successors, (0), 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 10:48:39,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 173.0) internal successors, (2076), 12 states have internal predecessors, (2076), 0 states have call successors, (0), 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 10:48:39,290 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 173.0) internal successors, (2076), 12 states have internal predecessors, (2076), 0 states have call successors, (0), 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 10:48:39,291 INFO L175 Difference]: Start difference. First operand has 270 places, 314 transitions, 2920 flow. Second operand 11 states and 1460 transitions. [2022-11-20 10:48:39,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 485 transitions, 5253 flow [2022-11-20 10:48:39,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 485 transitions, 4955 flow, removed 118 selfloop flow, removed 13 redundant places. [2022-11-20 10:48:39,566 INFO L231 Difference]: Finished difference. Result has 271 places, 334 transitions, 3147 flow [2022-11-20 10:48:39,567 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=2802, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3147, PETRI_PLACES=271, PETRI_TRANSITIONS=334} [2022-11-20 10:48:39,568 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 127 predicate places. [2022-11-20 10:48:39,568 INFO L495 AbstractCegarLoop]: Abstraction has has 271 places, 334 transitions, 3147 flow [2022-11-20 10:48:39,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 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 10:48:39,569 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:48:39,569 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] [2022-11-20 10:48:39,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:48:39,569 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 10:48:39,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:39,570 INFO L85 PathProgramCache]: Analyzing trace with hash 575052408, now seen corresponding path program 2 times [2022-11-20 10:48:39,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:48:39,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512362512] [2022-11-20 10:48:39,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:39,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:48:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:40,049 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 10:48:40,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:48:40,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512362512] [2022-11-20 10:48:40,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512362512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:40,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:40,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 10:48:40,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993497556] [2022-11-20 10:48:40,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:40,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:48:40,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:48:40,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:48:40,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:48:40,053 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 173 [2022-11-20 10:48:40,054 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 334 transitions, 3147 flow. Second operand has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 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 10:48:40,054 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:48:40,054 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 173 [2022-11-20 10:48:40,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:48:46,254 INFO L130 PetriNetUnfolder]: 6894/30740 cut-off events. [2022-11-20 10:48:46,254 INFO L131 PetriNetUnfolder]: For 87350/93515 co-relation queries the response was YES. [2022-11-20 10:48:46,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79892 conditions, 30740 events. 6894/30740 cut-off events. For 87350/93515 co-relation queries the response was YES. Maximal size of possible extension queue 1256. Compared 430901 event pairs, 1992 based on Foata normal form. 528/29097 useless extension candidates. Maximal degree in co-relation 77329. Up to 6671 conditions per place. [2022-11-20 10:48:46,834 INFO L137 encePairwiseOnDemand]: 156/173 looper letters, 313 selfloop transitions, 99 changer transitions 4/525 dead transitions. [2022-11-20 10:48:46,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 525 transitions, 5708 flow [2022-11-20 10:48:46,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 10:48:46,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-20 10:48:46,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1841 transitions. [2022-11-20 10:48:46,838 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7601156069364162 [2022-11-20 10:48:46,838 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1841 transitions. [2022-11-20 10:48:46,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1841 transitions. [2022-11-20 10:48:46,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:48:46,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1841 transitions. [2022-11-20 10:48:46,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 131.5) internal successors, (1841), 14 states have internal predecessors, (1841), 0 states have call successors, (0), 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 10:48:46,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 173.0) internal successors, (2595), 15 states have internal predecessors, (2595), 0 states have call successors, (0), 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 10:48:46,848 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 173.0) internal successors, (2595), 15 states have internal predecessors, (2595), 0 states have call successors, (0), 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 10:48:46,848 INFO L175 Difference]: Start difference. First operand has 271 places, 334 transitions, 3147 flow. Second operand 14 states and 1841 transitions. [2022-11-20 10:48:46,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 525 transitions, 5708 flow [2022-11-20 10:48:47,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 525 transitions, 5515 flow, removed 80 selfloop flow, removed 6 redundant places. [2022-11-20 10:48:47,211 INFO L231 Difference]: Finished difference. Result has 286 places, 389 transitions, 4004 flow [2022-11-20 10:48:47,211 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=3081, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4004, PETRI_PLACES=286, PETRI_TRANSITIONS=389} [2022-11-20 10:48:47,212 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 142 predicate places. [2022-11-20 10:48:47,212 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 389 transitions, 4004 flow [2022-11-20 10:48:47,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 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 10:48:47,213 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:48:47,213 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] [2022-11-20 10:48:47,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:48:47,213 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 10:48:47,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:47,213 INFO L85 PathProgramCache]: Analyzing trace with hash -228828489, now seen corresponding path program 1 times [2022-11-20 10:48:47,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:48:47,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498684744] [2022-11-20 10:48:47,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:47,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:48:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:47,866 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 10:48:47,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:48:47,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498684744] [2022-11-20 10:48:47,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498684744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:47,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:47,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 10:48:47,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299368057] [2022-11-20 10:48:47,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:47,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:48:47,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:48:47,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:48:47,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:48:47,870 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 173 [2022-11-20 10:48:47,871 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 389 transitions, 4004 flow. Second operand has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 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 10:48:47,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:48:47,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 173 [2022-11-20 10:48:47,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:48:56,835 INFO L130 PetriNetUnfolder]: 9126/40867 cut-off events. [2022-11-20 10:48:56,835 INFO L131 PetriNetUnfolder]: For 189960/211579 co-relation queries the response was YES. [2022-11-20 10:48:57,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119285 conditions, 40867 events. 9126/40867 cut-off events. For 189960/211579 co-relation queries the response was YES. Maximal size of possible extension queue 1735. Compared 603488 event pairs, 2664 based on Foata normal form. 1507/39421 useless extension candidates. Maximal degree in co-relation 116505. Up to 9822 conditions per place. [2022-11-20 10:48:57,652 INFO L137 encePairwiseOnDemand]: 156/173 looper letters, 304 selfloop transitions, 157 changer transitions 4/574 dead transitions. [2022-11-20 10:48:57,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 574 transitions, 6860 flow [2022-11-20 10:48:57,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 10:48:57,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-20 10:48:57,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1962 transitions. [2022-11-20 10:48:57,655 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7560693641618497 [2022-11-20 10:48:57,656 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1962 transitions. [2022-11-20 10:48:57,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1962 transitions. [2022-11-20 10:48:57,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:48:57,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1962 transitions. [2022-11-20 10:48:57,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 130.8) internal successors, (1962), 15 states have internal predecessors, (1962), 0 states have call successors, (0), 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 10:48:57,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 173.0) internal successors, (2768), 16 states have internal predecessors, (2768), 0 states have call successors, (0), 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 10:48:57,664 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 173.0) internal successors, (2768), 16 states have internal predecessors, (2768), 0 states have call successors, (0), 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 10:48:57,664 INFO L175 Difference]: Start difference. First operand has 286 places, 389 transitions, 4004 flow. Second operand 15 states and 1962 transitions. [2022-11-20 10:48:57,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 574 transitions, 6860 flow [2022-11-20 10:48:58,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 574 transitions, 6711 flow, removed 62 selfloop flow, removed 5 redundant places. [2022-11-20 10:48:58,520 INFO L231 Difference]: Finished difference. Result has 305 places, 469 transitions, 5637 flow [2022-11-20 10:48:58,521 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=3908, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=5637, PETRI_PLACES=305, PETRI_TRANSITIONS=469} [2022-11-20 10:48:58,521 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 161 predicate places. [2022-11-20 10:48:58,522 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 469 transitions, 5637 flow [2022-11-20 10:48:58,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 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 10:48:58,522 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:48:58,522 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] [2022-11-20 10:48:58,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 10:48:58,523 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 10:48:58,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:58,523 INFO L85 PathProgramCache]: Analyzing trace with hash 313380281, now seen corresponding path program 2 times [2022-11-20 10:48:58,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:48:58,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914092864] [2022-11-20 10:48:58,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:48:58,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:48:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:48:59,054 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 10:48:59,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:48:59,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914092864] [2022-11-20 10:48:59,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914092864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:48:59,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:48:59,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 10:48:59,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467864589] [2022-11-20 10:48:59,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:48:59,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:48:59,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:48:59,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:48:59,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:48:59,058 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 173 [2022-11-20 10:48:59,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 469 transitions, 5637 flow. Second operand has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 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 10:48:59,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:48:59,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 173 [2022-11-20 10:48:59,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand