./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_c6332913-6374-41e8-bb47-e85af9aee282/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6332913-6374-41e8-bb47-e85af9aee282/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6332913-6374-41e8-bb47-e85af9aee282/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6332913-6374-41e8-bb47-e85af9aee282/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6332913-6374-41e8-bb47-e85af9aee282/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6332913-6374-41e8-bb47-e85af9aee282/bin/uautomizer-uyxdKDjOR8 --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 79b55bbc1c83a113dd61cfbd1c59324170026eea9fc3fed8c2e488e492b32e33 --- 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-2329fc7 [2022-12-13 17:01:46,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:01:46,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:01:46,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:01:46,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:01:46,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:01:46,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:01:46,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:01:46,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:01:46,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:01:46,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:01:46,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:01:46,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:01:46,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:01:46,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:01:46,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:01:46,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:01:46,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:01:46,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:01:46,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:01:46,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:01:46,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:01:46,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:01:46,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:01:46,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:01:46,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:01:46,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:01:46,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:01:46,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:01:46,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:01:46,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:01:46,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:01:46,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:01:46,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:01:46,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:01:46,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:01:46,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:01:46,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:01:46,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:01:46,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:01:46,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:01:46,600 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6332913-6374-41e8-bb47-e85af9aee282/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 17:01:46,619 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:01:46,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:01:46,620 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:01:46,620 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:01:46,621 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:01:46,621 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:01:46,621 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:01:46,621 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:01:46,621 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:01:46,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:01:46,622 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:01:46,622 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:01:46,622 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:01:46,622 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:01:46,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:01:46,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:01:46,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:01:46,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:01:46,623 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 17:01:46,623 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:01:46,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:01:46,623 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:01:46,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:01:46,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:01:46,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:01:46,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:01:46,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:01:46,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:01:46,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:01:46,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:01:46,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:01:46,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:01:46,625 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:01:46,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:01:46,625 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:01:46,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:01:46,625 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:01:46,625 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6332913-6374-41e8-bb47-e85af9aee282/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6332913-6374-41e8-bb47-e85af9aee282/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79b55bbc1c83a113dd61cfbd1c59324170026eea9fc3fed8c2e488e492b32e33 [2022-12-13 17:01:46,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:01:46,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:01:46,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:01:46,824 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:01:46,824 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:01:46,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6332913-6374-41e8-bb47-e85af9aee282/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2022-12-13 17:01:49,383 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:01:49,646 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:01:49,646 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6332913-6374-41e8-bb47-e85af9aee282/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2022-12-13 17:01:49,659 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6332913-6374-41e8-bb47-e85af9aee282/bin/uautomizer-uyxdKDjOR8/data/a24d0a168/b34d07dfae7643a89e1e7884496e0956/FLAG20f975b38 [2022-12-13 17:01:49,670 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6332913-6374-41e8-bb47-e85af9aee282/bin/uautomizer-uyxdKDjOR8/data/a24d0a168/b34d07dfae7643a89e1e7884496e0956 [2022-12-13 17:01:49,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:01:49,673 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:01:49,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:01:49,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:01:49,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:01:49,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:01:49" (1/1) ... [2022-12-13 17:01:49,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b6bc108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:49, skipping insertion in model container [2022-12-13 17:01:49,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:01:49" (1/1) ... [2022-12-13 17:01:49,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:01:49,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:01:50,158 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_c6332913-6374-41e8-bb47-e85af9aee282/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-12-13 17:01:50,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:01:50,191 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:01:50,223 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_c6332913-6374-41e8-bb47-e85af9aee282/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-12-13 17:01:50,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:01:50,322 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:01:50,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:50 WrapperNode [2022-12-13 17:01:50,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:01:50,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:01:50,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:01:50,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:01:50,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:50" (1/1) ... [2022-12-13 17:01:50,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:50" (1/1) ... [2022-12-13 17:01:50,362 INFO L138 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 134 [2022-12-13 17:01:50,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:01:50,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:01:50,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:01:50,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:01:50,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:50" (1/1) ... [2022-12-13 17:01:50,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:50" (1/1) ... [2022-12-13 17:01:50,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:50" (1/1) ... [2022-12-13 17:01:50,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:50" (1/1) ... [2022-12-13 17:01:50,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:50" (1/1) ... [2022-12-13 17:01:50,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:50" (1/1) ... [2022-12-13 17:01:50,385 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:50" (1/1) ... [2022-12-13 17:01:50,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:50" (1/1) ... [2022-12-13 17:01:50,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:01:50,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:01:50,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:01:50,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:01:50,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:50" (1/1) ... [2022-12-13 17:01:50,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:01:50,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6332913-6374-41e8-bb47-e85af9aee282/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:01:50,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6332913-6374-41e8-bb47-e85af9aee282/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:01:50,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6332913-6374-41e8-bb47-e85af9aee282/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:01:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:01:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 17:01:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 17:01:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:01:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 17:01:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:01:50,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:01:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-12-13 17:01:50,442 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-12-13 17:01:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:01:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:01:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:01:50,444 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 17:01:50,669 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:01:50,670 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:01:50,869 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:01:50,877 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:01:50,878 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:01:50,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:01:50 BoogieIcfgContainer [2022-12-13 17:01:50,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:01:50,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:01:50,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:01:50,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:01:50,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:01:49" (1/3) ... [2022-12-13 17:01:50,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27b54c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:01:50, skipping insertion in model container [2022-12-13 17:01:50,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:50" (2/3) ... [2022-12-13 17:01:50,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27b54c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:01:50, skipping insertion in model container [2022-12-13 17:01:50,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:01:50" (3/3) ... [2022-12-13 17:01:50,892 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2022-12-13 17:01:50,901 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 17:01:50,912 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:01:50,913 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 17:01:50,913 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 17:01:50,978 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 17:01:51,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 194 places, 196 transitions, 408 flow [2022-12-13 17:01:51,078 INFO L130 PetriNetUnfolder]: 10/239 cut-off events. [2022-12-13 17:01:51,078 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 17:01:51,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 239 events. 10/239 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 399 event pairs, 0 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 141. Up to 4 conditions per place. [2022-12-13 17:01:51,082 INFO L82 GeneralOperation]: Start removeDead. Operand has 194 places, 196 transitions, 408 flow [2022-12-13 17:01:51,085 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 165 places, 162 transitions, 333 flow [2022-12-13 17:01:51,088 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:01:51,095 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 165 places, 162 transitions, 333 flow [2022-12-13 17:01:51,097 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 165 places, 162 transitions, 333 flow [2022-12-13 17:01:51,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 165 places, 162 transitions, 333 flow [2022-12-13 17:01:51,120 INFO L130 PetriNetUnfolder]: 4/162 cut-off events. [2022-12-13 17:01:51,121 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 17:01:51,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 162 events. 4/162 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 170 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2022-12-13 17:01:51,123 INFO L119 LiptonReduction]: Number of co-enabled transitions 4216 [2022-12-13 17:01:59,069 INFO L134 LiptonReduction]: Checked pairs total: 8757 [2022-12-13 17:01:59,069 INFO L136 LiptonReduction]: Total number of compositions: 162 [2022-12-13 17:01:59,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:01:59,089 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;@1aacfc94, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:01:59,089 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 17:01:59,093 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-13 17:01:59,094 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:01:59,094 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:01:59,094 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 17:01:59,095 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:01:59,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:01:59,100 INFO L85 PathProgramCache]: Analyzing trace with hash 604818649, now seen corresponding path program 1 times [2022-12-13 17:01:59,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:01:59,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073469568] [2022-12-13 17:01:59,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:01:59,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:01:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:59,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:01:59,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:01:59,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073469568] [2022-12-13 17:01:59,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073469568] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:01:59,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:01:59,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:01:59,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430897147] [2022-12-13 17:01:59,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:01:59,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:01:59,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:01:59,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:01:59,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:01:59,760 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 358 [2022-12-13 17:01:59,762 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 27 transitions, 63 flow. Second operand has 4 states, 4 states have (on average 167.25) internal successors, (669), 4 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:59,762 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:01:59,762 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 358 [2022-12-13 17:01:59,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:01:59,887 INFO L130 PetriNetUnfolder]: 194/361 cut-off events. [2022-12-13 17:01:59,887 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-12-13 17:01:59,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 361 events. 194/361 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1324 event pairs, 141 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 644. Up to 357 conditions per place. [2022-12-13 17:01:59,890 INFO L137 encePairwiseOnDemand]: 350/358 looper letters, 22 selfloop transitions, 7 changer transitions 0/29 dead transitions. [2022-12-13 17:01:59,891 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 125 flow [2022-12-13 17:01:59,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:01:59,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 17:01:59,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 862 transitions. [2022-12-13 17:01:59,903 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48156424581005586 [2022-12-13 17:01:59,904 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 862 transitions. [2022-12-13 17:01:59,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 862 transitions. [2022-12-13 17:01:59,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:01:59,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 862 transitions. [2022-12-13 17:01:59,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 172.4) internal successors, (862), 5 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:59,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 358.0) internal successors, (2148), 6 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:59,926 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 358.0) internal successors, (2148), 6 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:59,928 INFO L175 Difference]: Start difference. First operand has 33 places, 27 transitions, 63 flow. Second operand 5 states and 862 transitions. [2022-12-13 17:01:59,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 125 flow [2022-12-13 17:01:59,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 29 transitions, 120 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 17:01:59,933 INFO L231 Difference]: Finished difference. Result has 33 places, 28 transitions, 95 flow [2022-12-13 17:01:59,935 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=95, PETRI_PLACES=33, PETRI_TRANSITIONS=28} [2022-12-13 17:01:59,939 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2022-12-13 17:01:59,939 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 28 transitions, 95 flow [2022-12-13 17:01:59,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 167.25) internal successors, (669), 4 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:59,940 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:01:59,940 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 17:01:59,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:01:59,940 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:01:59,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:01:59,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1569512996, now seen corresponding path program 1 times [2022-12-13 17:01:59,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:01:59,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266678609] [2022-12-13 17:01:59,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:01:59,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:01:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:00,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:00,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:00,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266678609] [2022-12-13 17:02:00,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266678609] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:00,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:00,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:02:00,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669434439] [2022-12-13 17:02:00,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:00,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:02:00,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:00,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:02:00,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:02:00,360 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 358 [2022-12-13 17:02:00,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 95 flow. Second operand has 5 states, 5 states have (on average 166.2) internal successors, (831), 5 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:00,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:00,363 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 358 [2022-12-13 17:02:00,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:00,492 INFO L130 PetriNetUnfolder]: 180/337 cut-off events. [2022-12-13 17:02:00,492 INFO L131 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2022-12-13 17:02:00,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 785 conditions, 337 events. 180/337 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1214 event pairs, 59 based on Foata normal form. 5/292 useless extension candidates. Maximal degree in co-relation 666. Up to 294 conditions per place. [2022-12-13 17:02:00,494 INFO L137 encePairwiseOnDemand]: 351/358 looper letters, 34 selfloop transitions, 10 changer transitions 0/44 dead transitions. [2022-12-13 17:02:00,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 44 transitions, 227 flow [2022-12-13 17:02:00,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:02:00,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 17:02:00,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 868 transitions. [2022-12-13 17:02:00,497 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4849162011173184 [2022-12-13 17:02:00,497 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 868 transitions. [2022-12-13 17:02:00,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 868 transitions. [2022-12-13 17:02:00,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:00,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 868 transitions. [2022-12-13 17:02:00,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 173.6) internal successors, (868), 5 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:00,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 358.0) internal successors, (2148), 6 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:00,501 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 358.0) internal successors, (2148), 6 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:00,501 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 95 flow. Second operand 5 states and 868 transitions. [2022-12-13 17:02:00,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 44 transitions, 227 flow [2022-12-13 17:02:00,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 44 transitions, 227 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 17:02:00,503 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 159 flow [2022-12-13 17:02:00,503 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=159, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2022-12-13 17:02:00,503 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 7 predicate places. [2022-12-13 17:02:00,503 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 159 flow [2022-12-13 17:02:00,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 166.2) internal successors, (831), 5 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:00,504 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:00,504 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:00,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:02:00,504 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:00,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:00,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1414877080, now seen corresponding path program 1 times [2022-12-13 17:02:00,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:00,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377284955] [2022-12-13 17:02:00,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:00,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:00,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:00,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:00,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377284955] [2022-12-13 17:02:00,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377284955] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:00,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:00,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:02:00,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610270355] [2022-12-13 17:02:00,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:00,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:02:00,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:00,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:02:00,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:02:00,863 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 358 [2022-12-13 17:02:00,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 159 flow. Second operand has 5 states, 5 states have (on average 166.4) internal successors, (832), 5 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:00,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:00,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 358 [2022-12-13 17:02:00,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:01,012 INFO L130 PetriNetUnfolder]: 168/317 cut-off events. [2022-12-13 17:02:01,012 INFO L131 PetriNetUnfolder]: For 179/179 co-relation queries the response was YES. [2022-12-13 17:02:01,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 853 conditions, 317 events. 168/317 cut-off events. For 179/179 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1125 event pairs, 64 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 792. Up to 282 conditions per place. [2022-12-13 17:02:01,015 INFO L137 encePairwiseOnDemand]: 351/358 looper letters, 36 selfloop transitions, 9 changer transitions 0/45 dead transitions. [2022-12-13 17:02:01,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 45 transitions, 293 flow [2022-12-13 17:02:01,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:02:01,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 17:02:01,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 864 transitions. [2022-12-13 17:02:01,018 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48268156424581005 [2022-12-13 17:02:01,018 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 864 transitions. [2022-12-13 17:02:01,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 864 transitions. [2022-12-13 17:02:01,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:01,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 864 transitions. [2022-12-13 17:02:01,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 172.8) internal successors, (864), 5 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:01,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 358.0) internal successors, (2148), 6 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:01,025 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 358.0) internal successors, (2148), 6 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:01,025 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 159 flow. Second operand 5 states and 864 transitions. [2022-12-13 17:02:01,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 45 transitions, 293 flow [2022-12-13 17:02:01,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 45 transitions, 279 flow, removed 7 selfloop flow, removed 0 redundant places. [2022-12-13 17:02:01,027 INFO L231 Difference]: Finished difference. Result has 46 places, 38 transitions, 201 flow [2022-12-13 17:02:01,028 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=201, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2022-12-13 17:02:01,028 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 13 predicate places. [2022-12-13 17:02:01,028 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 201 flow [2022-12-13 17:02:01,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 166.4) internal successors, (832), 5 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:01,029 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:01,029 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:01,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:02:01,029 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:01,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:01,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1804710009, now seen corresponding path program 1 times [2022-12-13 17:02:01,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:01,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126510132] [2022-12-13 17:02:01,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:01,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:01,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:01,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:01,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126510132] [2022-12-13 17:02:01,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126510132] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:01,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:01,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:02:01,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27185313] [2022-12-13 17:02:01,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:01,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 17:02:01,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:01,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 17:02:01,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 17:02:01,548 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 358 [2022-12-13 17:02:01,549 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 201 flow. Second operand has 8 states, 8 states have (on average 162.125) internal successors, (1297), 8 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:01,549 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:01,549 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 358 [2022-12-13 17:02:01,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:01,775 INFO L130 PetriNetUnfolder]: 201/372 cut-off events. [2022-12-13 17:02:01,775 INFO L131 PetriNetUnfolder]: For 180/180 co-relation queries the response was YES. [2022-12-13 17:02:01,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1079 conditions, 372 events. 201/372 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1397 event pairs, 51 based on Foata normal form. 8/353 useless extension candidates. Maximal degree in co-relation 1012. Up to 288 conditions per place. [2022-12-13 17:02:01,777 INFO L137 encePairwiseOnDemand]: 347/358 looper letters, 42 selfloop transitions, 18 changer transitions 0/60 dead transitions. [2022-12-13 17:02:01,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 60 transitions, 416 flow [2022-12-13 17:02:01,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:02:01,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:02:01,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1018 transitions. [2022-12-13 17:02:01,779 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47392923649906893 [2022-12-13 17:02:01,779 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1018 transitions. [2022-12-13 17:02:01,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1018 transitions. [2022-12-13 17:02:01,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:01,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1018 transitions. [2022-12-13 17:02:01,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:01,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 358.0) internal successors, (2506), 7 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:01,784 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 358.0) internal successors, (2506), 7 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:01,784 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 201 flow. Second operand 6 states and 1018 transitions. [2022-12-13 17:02:01,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 60 transitions, 416 flow [2022-12-13 17:02:01,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 60 transitions, 399 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-12-13 17:02:01,786 INFO L231 Difference]: Finished difference. Result has 53 places, 49 transitions, 330 flow [2022-12-13 17:02:01,786 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=330, PETRI_PLACES=53, PETRI_TRANSITIONS=49} [2022-12-13 17:02:01,787 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 20 predicate places. [2022-12-13 17:02:01,787 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 330 flow [2022-12-13 17:02:01,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 162.125) internal successors, (1297), 8 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:01,787 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:01,787 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:01,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 17:02:01,788 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:01,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:01,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1805603739, now seen corresponding path program 2 times [2022-12-13 17:02:01,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:01,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376273062] [2022-12-13 17:02:01,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:01,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:02,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:02,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:02,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376273062] [2022-12-13 17:02:02,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376273062] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:02,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:02,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:02:02,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435725044] [2022-12-13 17:02:02,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:02,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 17:02:02,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:02,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 17:02:02,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-13 17:02:02,335 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 358 [2022-12-13 17:02:02,336 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 330 flow. Second operand has 8 states, 8 states have (on average 162.125) internal successors, (1297), 8 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:02,337 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:02,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 358 [2022-12-13 17:02:02,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:02,586 INFO L130 PetriNetUnfolder]: 198/368 cut-off events. [2022-12-13 17:02:02,586 INFO L131 PetriNetUnfolder]: For 448/448 co-relation queries the response was YES. [2022-12-13 17:02:02,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1276 conditions, 368 events. 198/368 cut-off events. For 448/448 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1345 event pairs, 77 based on Foata normal form. 8/365 useless extension candidates. Maximal degree in co-relation 737. Up to 259 conditions per place. [2022-12-13 17:02:02,588 INFO L137 encePairwiseOnDemand]: 346/358 looper letters, 48 selfloop transitions, 33 changer transitions 2/83 dead transitions. [2022-12-13 17:02:02,588 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 83 transitions, 685 flow [2022-12-13 17:02:02,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:02:02,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 17:02:02,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1514 transitions. [2022-12-13 17:02:02,591 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46989447548106766 [2022-12-13 17:02:02,591 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1514 transitions. [2022-12-13 17:02:02,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1514 transitions. [2022-12-13 17:02:02,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:02,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1514 transitions. [2022-12-13 17:02:02,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 168.22222222222223) internal successors, (1514), 9 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:02,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 358.0) internal successors, (3580), 10 states have internal predecessors, (3580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:02,596 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 358.0) internal successors, (3580), 10 states have internal predecessors, (3580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:02,597 INFO L175 Difference]: Start difference. First operand has 53 places, 49 transitions, 330 flow. Second operand 9 states and 1514 transitions. [2022-12-13 17:02:02,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 83 transitions, 685 flow [2022-12-13 17:02:02,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 83 transitions, 657 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-12-13 17:02:02,600 INFO L231 Difference]: Finished difference. Result has 63 places, 65 transitions, 554 flow [2022-12-13 17:02:02,601 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=554, PETRI_PLACES=63, PETRI_TRANSITIONS=65} [2022-12-13 17:02:02,601 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 30 predicate places. [2022-12-13 17:02:02,601 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 65 transitions, 554 flow [2022-12-13 17:02:02,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 162.125) internal successors, (1297), 8 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:02,602 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:02,602 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:02,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 17:02:02,602 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:02,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:02,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1729732723, now seen corresponding path program 1 times [2022-12-13 17:02:02,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:02,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605081892] [2022-12-13 17:02:02,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:02,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:02,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:02,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:02,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605081892] [2022-12-13 17:02:02,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605081892] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:02,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:02,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:02:02,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261480007] [2022-12-13 17:02:02,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:02,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:02:02,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:02,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:02:02,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:02:03,003 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 358 [2022-12-13 17:02:03,004 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 65 transitions, 554 flow. Second operand has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:03,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:03,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 358 [2022-12-13 17:02:03,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:03,291 INFO L130 PetriNetUnfolder]: 212/417 cut-off events. [2022-12-13 17:02:03,291 INFO L131 PetriNetUnfolder]: For 673/673 co-relation queries the response was YES. [2022-12-13 17:02:03,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1510 conditions, 417 events. 212/417 cut-off events. For 673/673 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1810 event pairs, 33 based on Foata normal form. 0/401 useless extension candidates. Maximal degree in co-relation 1336. Up to 156 conditions per place. [2022-12-13 17:02:03,294 INFO L137 encePairwiseOnDemand]: 347/358 looper letters, 68 selfloop transitions, 37 changer transitions 8/123 dead transitions. [2022-12-13 17:02:03,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 123 transitions, 1041 flow [2022-12-13 17:02:03,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:02:03,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 17:02:03,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1872 transitions. [2022-12-13 17:02:03,301 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47536820721178263 [2022-12-13 17:02:03,302 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1872 transitions. [2022-12-13 17:02:03,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1872 transitions. [2022-12-13 17:02:03,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:03,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1872 transitions. [2022-12-13 17:02:03,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 170.1818181818182) internal successors, (1872), 11 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:03,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:03,309 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:03,309 INFO L175 Difference]: Start difference. First operand has 63 places, 65 transitions, 554 flow. Second operand 11 states and 1872 transitions. [2022-12-13 17:02:03,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 123 transitions, 1041 flow [2022-12-13 17:02:03,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 123 transitions, 1000 flow, removed 10 selfloop flow, removed 2 redundant places. [2022-12-13 17:02:03,314 INFO L231 Difference]: Finished difference. Result has 75 places, 81 transitions, 716 flow [2022-12-13 17:02:03,314 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=716, PETRI_PLACES=75, PETRI_TRANSITIONS=81} [2022-12-13 17:02:03,315 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 42 predicate places. [2022-12-13 17:02:03,315 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 81 transitions, 716 flow [2022-12-13 17:02:03,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:03,315 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:03,315 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:03,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 17:02:03,315 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:03,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:03,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1134237660, now seen corresponding path program 1 times [2022-12-13 17:02:03,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:03,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481264990] [2022-12-13 17:02:03,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:03,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:03,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:03,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:03,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481264990] [2022-12-13 17:02:03,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481264990] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:03,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:03,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:02:03,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384849163] [2022-12-13 17:02:03,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:03,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:02:03,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:03,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:02:03,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:02:04,131 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 358 [2022-12-13 17:02:04,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 81 transitions, 716 flow. Second operand has 10 states, 10 states have (on average 158.1) internal successors, (1581), 10 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:04,133 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:04,133 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 358 [2022-12-13 17:02:04,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:04,654 INFO L130 PetriNetUnfolder]: 290/549 cut-off events. [2022-12-13 17:02:04,654 INFO L131 PetriNetUnfolder]: For 1343/1343 co-relation queries the response was YES. [2022-12-13 17:02:04,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2163 conditions, 549 events. 290/549 cut-off events. For 1343/1343 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2434 event pairs, 35 based on Foata normal form. 10/559 useless extension candidates. Maximal degree in co-relation 1889. Up to 202 conditions per place. [2022-12-13 17:02:04,657 INFO L137 encePairwiseOnDemand]: 345/358 looper letters, 78 selfloop transitions, 68 changer transitions 7/153 dead transitions. [2022-12-13 17:02:04,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 153 transitions, 1348 flow [2022-12-13 17:02:04,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 17:02:04,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-13 17:02:04,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3249 transitions. [2022-12-13 17:02:04,665 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4537709497206704 [2022-12-13 17:02:04,665 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3249 transitions. [2022-12-13 17:02:04,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3249 transitions. [2022-12-13 17:02:04,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:04,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3249 transitions. [2022-12-13 17:02:04,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 162.45) internal successors, (3249), 20 states have internal predecessors, (3249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:04,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 358.0) internal successors, (7518), 21 states have internal predecessors, (7518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:04,680 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 358.0) internal successors, (7518), 21 states have internal predecessors, (7518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:04,680 INFO L175 Difference]: Start difference. First operand has 75 places, 81 transitions, 716 flow. Second operand 20 states and 3249 transitions. [2022-12-13 17:02:04,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 153 transitions, 1348 flow [2022-12-13 17:02:04,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 153 transitions, 1332 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-13 17:02:04,689 INFO L231 Difference]: Finished difference. Result has 97 places, 109 transitions, 1097 flow [2022-12-13 17:02:04,689 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=680, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1097, PETRI_PLACES=97, PETRI_TRANSITIONS=109} [2022-12-13 17:02:04,689 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 64 predicate places. [2022-12-13 17:02:04,690 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 109 transitions, 1097 flow [2022-12-13 17:02:04,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 158.1) internal successors, (1581), 10 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:04,691 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:04,691 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:04,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 17:02:04,691 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:04,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:04,691 INFO L85 PathProgramCache]: Analyzing trace with hash 547750743, now seen corresponding path program 2 times [2022-12-13 17:02:04,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:04,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014659732] [2022-12-13 17:02:04,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:04,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:04,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:04,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:04,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014659732] [2022-12-13 17:02:04,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014659732] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:04,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:04,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 17:02:04,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220274717] [2022-12-13 17:02:04,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:04,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 17:02:04,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:04,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 17:02:04,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 17:02:05,202 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 358 [2022-12-13 17:02:05,203 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 109 transitions, 1097 flow. Second operand has 8 states, 8 states have (on average 158.375) internal successors, (1267), 8 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:05,203 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:05,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 358 [2022-12-13 17:02:05,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:05,649 INFO L130 PetriNetUnfolder]: 374/728 cut-off events. [2022-12-13 17:02:05,649 INFO L131 PetriNetUnfolder]: For 2710/2710 co-relation queries the response was YES. [2022-12-13 17:02:05,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3251 conditions, 728 events. 374/728 cut-off events. For 2710/2710 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3732 event pairs, 70 based on Foata normal form. 5/733 useless extension candidates. Maximal degree in co-relation 3058. Up to 308 conditions per place. [2022-12-13 17:02:05,654 INFO L137 encePairwiseOnDemand]: 346/358 looper letters, 111 selfloop transitions, 57 changer transitions 8/176 dead transitions. [2022-12-13 17:02:05,654 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 176 transitions, 1939 flow [2022-12-13 17:02:05,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:02:05,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 17:02:05,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1810 transitions. [2022-12-13 17:02:05,656 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45962417470797357 [2022-12-13 17:02:05,656 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1810 transitions. [2022-12-13 17:02:05,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1810 transitions. [2022-12-13 17:02:05,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:05,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1810 transitions. [2022-12-13 17:02:05,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 164.54545454545453) internal successors, (1810), 11 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:05,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:05,663 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:05,663 INFO L175 Difference]: Start difference. First operand has 97 places, 109 transitions, 1097 flow. Second operand 11 states and 1810 transitions. [2022-12-13 17:02:05,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 176 transitions, 1939 flow [2022-12-13 17:02:05,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 176 transitions, 1860 flow, removed 23 selfloop flow, removed 4 redundant places. [2022-12-13 17:02:05,678 INFO L231 Difference]: Finished difference. Result has 108 places, 126 transitions, 1404 flow [2022-12-13 17:02:05,678 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1404, PETRI_PLACES=108, PETRI_TRANSITIONS=126} [2022-12-13 17:02:05,679 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 75 predicate places. [2022-12-13 17:02:05,679 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 126 transitions, 1404 flow [2022-12-13 17:02:05,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 158.375) internal successors, (1267), 8 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:05,679 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:05,679 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:05,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 17:02:05,679 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:05,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:05,680 INFO L85 PathProgramCache]: Analyzing trace with hash 647139843, now seen corresponding path program 3 times [2022-12-13 17:02:05,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:05,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485716488] [2022-12-13 17:02:05,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:05,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:05,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:05,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:05,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485716488] [2022-12-13 17:02:05,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485716488] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:05,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:05,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:02:05,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263091973] [2022-12-13 17:02:05,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:05,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:02:05,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:05,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:02:05,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:02:05,991 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 358 [2022-12-13 17:02:05,992 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 126 transitions, 1404 flow. Second operand has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:05,992 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:05,992 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 358 [2022-12-13 17:02:05,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:06,293 INFO L130 PetriNetUnfolder]: 412/847 cut-off events. [2022-12-13 17:02:06,293 INFO L131 PetriNetUnfolder]: For 4619/4630 co-relation queries the response was YES. [2022-12-13 17:02:06,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4064 conditions, 847 events. 412/847 cut-off events. For 4619/4630 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 4816 event pairs, 55 based on Foata normal form. 21/863 useless extension candidates. Maximal degree in co-relation 3838. Up to 318 conditions per place. [2022-12-13 17:02:06,298 INFO L137 encePairwiseOnDemand]: 349/358 looper letters, 120 selfloop transitions, 46 changer transitions 3/179 dead transitions. [2022-12-13 17:02:06,298 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 179 transitions, 2148 flow [2022-12-13 17:02:06,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 17:02:06,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 17:02:06,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1373 transitions. [2022-12-13 17:02:06,301 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4793994413407821 [2022-12-13 17:02:06,301 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1373 transitions. [2022-12-13 17:02:06,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1373 transitions. [2022-12-13 17:02:06,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:06,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1373 transitions. [2022-12-13 17:02:06,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 171.625) internal successors, (1373), 8 states have internal predecessors, (1373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:06,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 358.0) internal successors, (3222), 9 states have internal predecessors, (3222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:06,306 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 358.0) internal successors, (3222), 9 states have internal predecessors, (3222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:06,306 INFO L175 Difference]: Start difference. First operand has 108 places, 126 transitions, 1404 flow. Second operand 8 states and 1373 transitions. [2022-12-13 17:02:06,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 179 transitions, 2148 flow [2022-12-13 17:02:06,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 179 transitions, 2131 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-12-13 17:02:06,331 INFO L231 Difference]: Finished difference. Result has 118 places, 146 transitions, 1856 flow [2022-12-13 17:02:06,331 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=1392, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1856, PETRI_PLACES=118, PETRI_TRANSITIONS=146} [2022-12-13 17:02:06,331 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 85 predicate places. [2022-12-13 17:02:06,331 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 146 transitions, 1856 flow [2022-12-13 17:02:06,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:06,332 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:06,332 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:06,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 17:02:06,332 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:06,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:06,332 INFO L85 PathProgramCache]: Analyzing trace with hash 647208460, now seen corresponding path program 1 times [2022-12-13 17:02:06,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:06,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485651586] [2022-12-13 17:02:06,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:06,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:06,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:06,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:06,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485651586] [2022-12-13 17:02:06,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485651586] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:06,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:06,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:02:06,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018393102] [2022-12-13 17:02:06,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:06,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:02:06,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:06,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:02:06,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:02:06,646 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 358 [2022-12-13 17:02:06,647 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 146 transitions, 1856 flow. Second operand has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:06,647 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:06,647 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 358 [2022-12-13 17:02:06,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:06,933 INFO L130 PetriNetUnfolder]: 404/831 cut-off events. [2022-12-13 17:02:06,934 INFO L131 PetriNetUnfolder]: For 6372/6383 co-relation queries the response was YES. [2022-12-13 17:02:06,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4408 conditions, 831 events. 404/831 cut-off events. For 6372/6383 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4732 event pairs, 52 based on Foata normal form. 12/840 useless extension candidates. Maximal degree in co-relation 4149. Up to 301 conditions per place. [2022-12-13 17:02:06,938 INFO L137 encePairwiseOnDemand]: 350/358 looper letters, 132 selfloop transitions, 28 changer transitions 27/197 dead transitions. [2022-12-13 17:02:06,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 197 transitions, 2696 flow [2022-12-13 17:02:06,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 17:02:06,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 17:02:06,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1363 transitions. [2022-12-13 17:02:06,940 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4759078212290503 [2022-12-13 17:02:06,940 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1363 transitions. [2022-12-13 17:02:06,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1363 transitions. [2022-12-13 17:02:06,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:06,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1363 transitions. [2022-12-13 17:02:06,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 170.375) internal successors, (1363), 8 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:06,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 358.0) internal successors, (3222), 9 states have internal predecessors, (3222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:06,944 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 358.0) internal successors, (3222), 9 states have internal predecessors, (3222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:06,944 INFO L175 Difference]: Start difference. First operand has 118 places, 146 transitions, 1856 flow. Second operand 8 states and 1363 transitions. [2022-12-13 17:02:06,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 197 transitions, 2696 flow [2022-12-13 17:02:06,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 197 transitions, 2683 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-12-13 17:02:06,973 INFO L231 Difference]: Finished difference. Result has 126 places, 147 transitions, 1926 flow [2022-12-13 17:02:06,973 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=1845, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1926, PETRI_PLACES=126, PETRI_TRANSITIONS=147} [2022-12-13 17:02:06,974 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 93 predicate places. [2022-12-13 17:02:06,974 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 147 transitions, 1926 flow [2022-12-13 17:02:06,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:06,974 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:06,974 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:06,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 17:02:06,974 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:06,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:06,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1955579470, now seen corresponding path program 1 times [2022-12-13 17:02:06,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:06,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701950702] [2022-12-13 17:02:06,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:06,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:07,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:07,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:07,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701950702] [2022-12-13 17:02:07,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701950702] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:07,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:07,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:02:07,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040339182] [2022-12-13 17:02:07,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:07,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:02:07,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:07,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:02:07,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:02:07,730 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 358 [2022-12-13 17:02:07,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 147 transitions, 1926 flow. Second operand has 10 states, 10 states have (on average 158.1) internal successors, (1581), 10 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:07,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:07,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 358 [2022-12-13 17:02:07,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:08,194 INFO L130 PetriNetUnfolder]: 431/893 cut-off events. [2022-12-13 17:02:08,194 INFO L131 PetriNetUnfolder]: For 6858/6858 co-relation queries the response was YES. [2022-12-13 17:02:08,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4916 conditions, 893 events. 431/893 cut-off events. For 6858/6858 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5081 event pairs, 84 based on Foata normal form. 8/901 useless extension candidates. Maximal degree in co-relation 4692. Up to 565 conditions per place. [2022-12-13 17:02:08,199 INFO L137 encePairwiseOnDemand]: 348/358 looper letters, 108 selfloop transitions, 45 changer transitions 33/186 dead transitions. [2022-12-13 17:02:08,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 186 transitions, 2653 flow [2022-12-13 17:02:08,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 17:02:08,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 17:02:08,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1638 transitions. [2022-12-13 17:02:08,202 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45754189944134077 [2022-12-13 17:02:08,202 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1638 transitions. [2022-12-13 17:02:08,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1638 transitions. [2022-12-13 17:02:08,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:08,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1638 transitions. [2022-12-13 17:02:08,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 163.8) internal successors, (1638), 10 states have internal predecessors, (1638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:08,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 358.0) internal successors, (3938), 11 states have internal predecessors, (3938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:08,206 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 358.0) internal successors, (3938), 11 states have internal predecessors, (3938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:08,206 INFO L175 Difference]: Start difference. First operand has 126 places, 147 transitions, 1926 flow. Second operand 10 states and 1638 transitions. [2022-12-13 17:02:08,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 186 transitions, 2653 flow [2022-12-13 17:02:08,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 186 transitions, 2626 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-13 17:02:08,242 INFO L231 Difference]: Finished difference. Result has 134 places, 141 transitions, 1915 flow [2022-12-13 17:02:08,242 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=1863, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1915, PETRI_PLACES=134, PETRI_TRANSITIONS=141} [2022-12-13 17:02:08,243 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 101 predicate places. [2022-12-13 17:02:08,243 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 141 transitions, 1915 flow [2022-12-13 17:02:08,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 158.1) internal successors, (1581), 10 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:08,243 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:08,243 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:08,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 17:02:08,243 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:08,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:08,244 INFO L85 PathProgramCache]: Analyzing trace with hash -906996728, now seen corresponding path program 2 times [2022-12-13 17:02:08,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:08,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621707736] [2022-12-13 17:02:08,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:08,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:08,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:08,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:08,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:08,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621707736] [2022-12-13 17:02:08,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621707736] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:08,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:08,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 17:02:08,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551751949] [2022-12-13 17:02:08,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:08,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:02:08,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:08,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:02:08,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:02:08,901 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 358 [2022-12-13 17:02:08,903 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 141 transitions, 1915 flow. Second operand has 9 states, 9 states have (on average 158.22222222222223) internal successors, (1424), 9 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:08,903 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:08,903 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 358 [2022-12-13 17:02:08,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:09,310 INFO L130 PetriNetUnfolder]: 322/674 cut-off events. [2022-12-13 17:02:09,310 INFO L131 PetriNetUnfolder]: For 5467/5467 co-relation queries the response was YES. [2022-12-13 17:02:09,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3932 conditions, 674 events. 322/674 cut-off events. For 5467/5467 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3545 event pairs, 44 based on Foata normal form. 5/679 useless extension candidates. Maximal degree in co-relation 3820. Up to 338 conditions per place. [2022-12-13 17:02:09,314 INFO L137 encePairwiseOnDemand]: 346/358 looper letters, 94 selfloop transitions, 70 changer transitions 1/165 dead transitions. [2022-12-13 17:02:09,314 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 165 transitions, 2353 flow [2022-12-13 17:02:09,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 17:02:09,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 17:02:09,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1956 transitions. [2022-12-13 17:02:09,317 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4553072625698324 [2022-12-13 17:02:09,317 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1956 transitions. [2022-12-13 17:02:09,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1956 transitions. [2022-12-13 17:02:09,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:09,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1956 transitions. [2022-12-13 17:02:09,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 163.0) internal successors, (1956), 12 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:09,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 358.0) internal successors, (4654), 13 states have internal predecessors, (4654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:09,322 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 358.0) internal successors, (4654), 13 states have internal predecessors, (4654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:09,322 INFO L175 Difference]: Start difference. First operand has 134 places, 141 transitions, 1915 flow. Second operand 12 states and 1956 transitions. [2022-12-13 17:02:09,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 165 transitions, 2353 flow [2022-12-13 17:02:09,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 165 transitions, 2303 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-12-13 17:02:09,350 INFO L231 Difference]: Finished difference. Result has 138 places, 143 transitions, 2046 flow [2022-12-13 17:02:09,350 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=1800, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2046, PETRI_PLACES=138, PETRI_TRANSITIONS=143} [2022-12-13 17:02:09,351 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 105 predicate places. [2022-12-13 17:02:09,351 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 143 transitions, 2046 flow [2022-12-13 17:02:09,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 158.22222222222223) internal successors, (1424), 9 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:09,351 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:09,351 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:09,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 17:02:09,351 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:09,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:09,352 INFO L85 PathProgramCache]: Analyzing trace with hash -2049798342, now seen corresponding path program 2 times [2022-12-13 17:02:09,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:09,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955045251] [2022-12-13 17:02:09,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:09,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:09,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:09,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:09,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955045251] [2022-12-13 17:02:09,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955045251] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:09,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:09,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:02:09,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580194704] [2022-12-13 17:02:09,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:09,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 17:02:09,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:09,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 17:02:09,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 17:02:09,985 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 358 [2022-12-13 17:02:09,986 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 143 transitions, 2046 flow. Second operand has 8 states, 8 states have (on average 160.375) internal successors, (1283), 8 states have internal predecessors, (1283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:09,986 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:09,986 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 358 [2022-12-13 17:02:09,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:10,477 INFO L130 PetriNetUnfolder]: 358/768 cut-off events. [2022-12-13 17:02:10,477 INFO L131 PetriNetUnfolder]: For 6870/6870 co-relation queries the response was YES. [2022-12-13 17:02:10,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4662 conditions, 768 events. 358/768 cut-off events. For 6870/6870 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4307 event pairs, 77 based on Foata normal form. 8/776 useless extension candidates. Maximal degree in co-relation 4386. Up to 519 conditions per place. [2022-12-13 17:02:10,481 INFO L137 encePairwiseOnDemand]: 348/358 looper letters, 130 selfloop transitions, 52 changer transitions 16/198 dead transitions. [2022-12-13 17:02:10,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 198 transitions, 2976 flow [2022-12-13 17:02:10,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 17:02:10,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 17:02:10,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2146 transitions. [2022-12-13 17:02:10,483 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4611087236785561 [2022-12-13 17:02:10,483 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2146 transitions. [2022-12-13 17:02:10,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2146 transitions. [2022-12-13 17:02:10,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:10,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2146 transitions. [2022-12-13 17:02:10,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 165.07692307692307) internal successors, (2146), 13 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:10,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 358.0) internal successors, (5012), 14 states have internal predecessors, (5012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:10,488 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 358.0) internal successors, (5012), 14 states have internal predecessors, (5012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:10,488 INFO L175 Difference]: Start difference. First operand has 138 places, 143 transitions, 2046 flow. Second operand 13 states and 2146 transitions. [2022-12-13 17:02:10,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 198 transitions, 2976 flow [2022-12-13 17:02:10,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 198 transitions, 2869 flow, removed 2 selfloop flow, removed 7 redundant places. [2022-12-13 17:02:10,519 INFO L231 Difference]: Finished difference. Result has 145 places, 160 transitions, 2363 flow [2022-12-13 17:02:10,519 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=1965, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2363, PETRI_PLACES=145, PETRI_TRANSITIONS=160} [2022-12-13 17:02:10,520 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 112 predicate places. [2022-12-13 17:02:10,520 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 160 transitions, 2363 flow [2022-12-13 17:02:10,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 160.375) internal successors, (1283), 8 states have internal predecessors, (1283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:10,520 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:10,520 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:10,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 17:02:10,520 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:10,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:10,521 INFO L85 PathProgramCache]: Analyzing trace with hash -2052771636, now seen corresponding path program 2 times [2022-12-13 17:02:10,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:10,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227471212] [2022-12-13 17:02:10,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:10,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:10,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:10,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:10,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:10,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227471212] [2022-12-13 17:02:10,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227471212] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:10,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:10,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 17:02:10,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973624649] [2022-12-13 17:02:10,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:10,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 17:02:10,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:10,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 17:02:10,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 17:02:11,026 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 358 [2022-12-13 17:02:11,027 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 160 transitions, 2363 flow. Second operand has 8 states, 8 states have (on average 158.375) internal successors, (1267), 8 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:11,027 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:11,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 358 [2022-12-13 17:02:11,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:11,465 INFO L130 PetriNetUnfolder]: 355/798 cut-off events. [2022-12-13 17:02:11,465 INFO L131 PetriNetUnfolder]: For 8543/8543 co-relation queries the response was YES. [2022-12-13 17:02:11,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5045 conditions, 798 events. 355/798 cut-off events. For 8543/8543 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4768 event pairs, 41 based on Foata normal form. 4/802 useless extension candidates. Maximal degree in co-relation 4716. Up to 317 conditions per place. [2022-12-13 17:02:11,470 INFO L137 encePairwiseOnDemand]: 348/358 looper letters, 128 selfloop transitions, 72 changer transitions 6/206 dead transitions. [2022-12-13 17:02:11,470 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 206 transitions, 3266 flow [2022-12-13 17:02:11,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:02:11,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 17:02:11,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1475 transitions. [2022-12-13 17:02:11,472 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4577901924270639 [2022-12-13 17:02:11,472 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1475 transitions. [2022-12-13 17:02:11,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1475 transitions. [2022-12-13 17:02:11,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:11,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1475 transitions. [2022-12-13 17:02:11,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 163.88888888888889) internal successors, (1475), 9 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:11,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 358.0) internal successors, (3580), 10 states have internal predecessors, (3580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:11,475 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 358.0) internal successors, (3580), 10 states have internal predecessors, (3580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:11,475 INFO L175 Difference]: Start difference. First operand has 145 places, 160 transitions, 2363 flow. Second operand 9 states and 1475 transitions. [2022-12-13 17:02:11,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 206 transitions, 3266 flow [2022-12-13 17:02:11,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 206 transitions, 3245 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-12-13 17:02:11,509 INFO L231 Difference]: Finished difference. Result has 151 places, 172 transitions, 2734 flow [2022-12-13 17:02:11,510 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=2342, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2734, PETRI_PLACES=151, PETRI_TRANSITIONS=172} [2022-12-13 17:02:11,510 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 118 predicate places. [2022-12-13 17:02:11,510 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 172 transitions, 2734 flow [2022-12-13 17:02:11,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 158.375) internal successors, (1267), 8 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:11,510 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:11,511 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:11,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 17:02:11,511 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:11,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:11,511 INFO L85 PathProgramCache]: Analyzing trace with hash -2017595316, now seen corresponding path program 3 times [2022-12-13 17:02:11,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:11,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650326823] [2022-12-13 17:02:11,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:11,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:11,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:11,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:11,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650326823] [2022-12-13 17:02:11,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650326823] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:11,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:11,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:02:11,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783177402] [2022-12-13 17:02:11,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:11,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:02:11,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:11,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:02:11,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:02:11,773 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 358 [2022-12-13 17:02:11,774 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 172 transitions, 2734 flow. Second operand has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:11,774 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:11,774 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 358 [2022-12-13 17:02:11,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:12,075 INFO L130 PetriNetUnfolder]: 320/756 cut-off events. [2022-12-13 17:02:12,075 INFO L131 PetriNetUnfolder]: For 9647/9650 co-relation queries the response was YES. [2022-12-13 17:02:12,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5059 conditions, 756 events. 320/756 cut-off events. For 9647/9650 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4687 event pairs, 52 based on Foata normal form. 12/765 useless extension candidates. Maximal degree in co-relation 4902. Up to 397 conditions per place. [2022-12-13 17:02:12,080 INFO L137 encePairwiseOnDemand]: 350/358 looper letters, 149 selfloop transitions, 24 changer transitions 9/194 dead transitions. [2022-12-13 17:02:12,080 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 194 transitions, 3221 flow [2022-12-13 17:02:12,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:02:12,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 17:02:12,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1196 transitions. [2022-12-13 17:02:12,082 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4772545889864326 [2022-12-13 17:02:12,082 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1196 transitions. [2022-12-13 17:02:12,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1196 transitions. [2022-12-13 17:02:12,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:12,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1196 transitions. [2022-12-13 17:02:12,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 170.85714285714286) internal successors, (1196), 7 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:12,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 358.0) internal successors, (2864), 8 states have internal predecessors, (2864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:12,085 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 358.0) internal successors, (2864), 8 states have internal predecessors, (2864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:12,085 INFO L175 Difference]: Start difference. First operand has 151 places, 172 transitions, 2734 flow. Second operand 7 states and 1196 transitions. [2022-12-13 17:02:12,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 194 transitions, 3221 flow [2022-12-13 17:02:12,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 194 transitions, 3089 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-12-13 17:02:12,121 INFO L231 Difference]: Finished difference. Result has 152 places, 164 transitions, 2534 flow [2022-12-13 17:02:12,121 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=2588, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2534, PETRI_PLACES=152, PETRI_TRANSITIONS=164} [2022-12-13 17:02:12,122 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 119 predicate places. [2022-12-13 17:02:12,122 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 164 transitions, 2534 flow [2022-12-13 17:02:12,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:12,122 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:12,122 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:12,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 17:02:12,122 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:12,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:12,122 INFO L85 PathProgramCache]: Analyzing trace with hash 60258317, now seen corresponding path program 4 times [2022-12-13 17:02:12,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:12,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44732324] [2022-12-13 17:02:12,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:12,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:12,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:12,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:12,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44732324] [2022-12-13 17:02:12,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44732324] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:12,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:12,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:02:12,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130009049] [2022-12-13 17:02:12,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:12,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:02:12,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:12,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:02:12,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:02:12,391 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 358 [2022-12-13 17:02:12,392 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 164 transitions, 2534 flow. Second operand has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:12,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:12,392 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 358 [2022-12-13 17:02:12,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:12,670 INFO L130 PetriNetUnfolder]: 291/688 cut-off events. [2022-12-13 17:02:12,670 INFO L131 PetriNetUnfolder]: For 8863/8865 co-relation queries the response was YES. [2022-12-13 17:02:12,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4476 conditions, 688 events. 291/688 cut-off events. For 8863/8865 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4156 event pairs, 44 based on Foata normal form. 16/699 useless extension candidates. Maximal degree in co-relation 4234. Up to 381 conditions per place. [2022-12-13 17:02:12,676 INFO L137 encePairwiseOnDemand]: 349/358 looper letters, 130 selfloop transitions, 39 changer transitions 1/182 dead transitions. [2022-12-13 17:02:12,676 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 182 transitions, 2913 flow [2022-12-13 17:02:12,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 17:02:12,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 17:02:12,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1364 transitions. [2022-12-13 17:02:12,678 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4762569832402235 [2022-12-13 17:02:12,678 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1364 transitions. [2022-12-13 17:02:12,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1364 transitions. [2022-12-13 17:02:12,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:12,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1364 transitions. [2022-12-13 17:02:12,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 170.5) internal successors, (1364), 8 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:12,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 358.0) internal successors, (3222), 9 states have internal predecessors, (3222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:12,681 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 358.0) internal successors, (3222), 9 states have internal predecessors, (3222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:12,681 INFO L175 Difference]: Start difference. First operand has 152 places, 164 transitions, 2534 flow. Second operand 8 states and 1364 transitions. [2022-12-13 17:02:12,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 182 transitions, 2913 flow [2022-12-13 17:02:12,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 182 transitions, 2880 flow, removed 9 selfloop flow, removed 2 redundant places. [2022-12-13 17:02:12,714 INFO L231 Difference]: Finished difference. Result has 157 places, 160 transitions, 2546 flow [2022-12-13 17:02:12,714 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=2438, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2546, PETRI_PLACES=157, PETRI_TRANSITIONS=160} [2022-12-13 17:02:12,714 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 124 predicate places. [2022-12-13 17:02:12,714 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 160 transitions, 2546 flow [2022-12-13 17:02:12,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:12,714 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:12,715 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:12,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 17:02:12,715 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:12,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:12,715 INFO L85 PathProgramCache]: Analyzing trace with hash 60258342, now seen corresponding path program 3 times [2022-12-13 17:02:12,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:12,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449217221] [2022-12-13 17:02:12,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:12,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:13,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:13,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:13,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449217221] [2022-12-13 17:02:13,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449217221] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:13,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:13,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 17:02:13,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307365928] [2022-12-13 17:02:13,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:13,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:02:13,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:13,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:02:13,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:02:13,271 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 358 [2022-12-13 17:02:13,271 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 160 transitions, 2546 flow. Second operand has 9 states, 9 states have (on average 158.22222222222223) internal successors, (1424), 9 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:13,271 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:13,271 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 358 [2022-12-13 17:02:13,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:13,594 INFO L130 PetriNetUnfolder]: 306/701 cut-off events. [2022-12-13 17:02:13,594 INFO L131 PetriNetUnfolder]: For 8820/8820 co-relation queries the response was YES. [2022-12-13 17:02:13,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4636 conditions, 701 events. 306/701 cut-off events. For 8820/8820 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4081 event pairs, 77 based on Foata normal form. 5/706 useless extension candidates. Maximal degree in co-relation 4387. Up to 476 conditions per place. [2022-12-13 17:02:13,599 INFO L137 encePairwiseOnDemand]: 346/358 looper letters, 118 selfloop transitions, 52 changer transitions 1/171 dead transitions. [2022-12-13 17:02:13,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 171 transitions, 2895 flow [2022-12-13 17:02:13,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:02:13,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 17:02:13,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1472 transitions. [2022-12-13 17:02:13,601 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45685909373060213 [2022-12-13 17:02:13,601 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1472 transitions. [2022-12-13 17:02:13,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1472 transitions. [2022-12-13 17:02:13,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:13,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1472 transitions. [2022-12-13 17:02:13,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 163.55555555555554) internal successors, (1472), 9 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:13,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 358.0) internal successors, (3580), 10 states have internal predecessors, (3580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:13,605 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 358.0) internal successors, (3580), 10 states have internal predecessors, (3580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:13,605 INFO L175 Difference]: Start difference. First operand has 157 places, 160 transitions, 2546 flow. Second operand 9 states and 1472 transitions. [2022-12-13 17:02:13,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 171 transitions, 2895 flow [2022-12-13 17:02:13,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 171 transitions, 2700 flow, removed 15 selfloop flow, removed 9 redundant places. [2022-12-13 17:02:13,641 INFO L231 Difference]: Finished difference. Result has 154 places, 156 transitions, 2402 flow [2022-12-13 17:02:13,641 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=2298, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2402, PETRI_PLACES=154, PETRI_TRANSITIONS=156} [2022-12-13 17:02:13,641 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 121 predicate places. [2022-12-13 17:02:13,641 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 156 transitions, 2402 flow [2022-12-13 17:02:13,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 158.22222222222223) internal successors, (1424), 9 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:13,642 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:13,642 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:13,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 17:02:13,642 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:13,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:13,642 INFO L85 PathProgramCache]: Analyzing trace with hash 60327018, now seen corresponding path program 3 times [2022-12-13 17:02:13,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:13,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866870630] [2022-12-13 17:02:13,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:13,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:13,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:13,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:13,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866870630] [2022-12-13 17:02:13,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866870630] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:13,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:13,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 17:02:13,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109222305] [2022-12-13 17:02:13,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:13,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:02:13,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:13,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:02:13,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:02:14,149 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 358 [2022-12-13 17:02:14,150 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 156 transitions, 2402 flow. Second operand has 9 states, 9 states have (on average 158.22222222222223) internal successors, (1424), 9 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:14,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:14,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 358 [2022-12-13 17:02:14,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:14,518 INFO L130 PetriNetUnfolder]: 302/693 cut-off events. [2022-12-13 17:02:14,518 INFO L131 PetriNetUnfolder]: For 7557/7557 co-relation queries the response was YES. [2022-12-13 17:02:14,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4437 conditions, 693 events. 302/693 cut-off events. For 7557/7557 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4009 event pairs, 85 based on Foata normal form. 4/697 useless extension candidates. Maximal degree in co-relation 4183. Up to 508 conditions per place. [2022-12-13 17:02:14,522 INFO L137 encePairwiseOnDemand]: 347/358 looper letters, 128 selfloop transitions, 42 changer transitions 7/177 dead transitions. [2022-12-13 17:02:14,523 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 177 transitions, 2889 flow [2022-12-13 17:02:14,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 17:02:14,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 17:02:14,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1633 transitions. [2022-12-13 17:02:14,524 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.456145251396648 [2022-12-13 17:02:14,524 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1633 transitions. [2022-12-13 17:02:14,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1633 transitions. [2022-12-13 17:02:14,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:14,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1633 transitions. [2022-12-13 17:02:14,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 163.3) internal successors, (1633), 10 states have internal predecessors, (1633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:14,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 358.0) internal successors, (3938), 11 states have internal predecessors, (3938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:14,528 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 358.0) internal successors, (3938), 11 states have internal predecessors, (3938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:14,528 INFO L175 Difference]: Start difference. First operand has 154 places, 156 transitions, 2402 flow. Second operand 10 states and 1633 transitions. [2022-12-13 17:02:14,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 177 transitions, 2889 flow [2022-12-13 17:02:14,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 177 transitions, 2850 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-12-13 17:02:14,560 INFO L231 Difference]: Finished difference. Result has 158 places, 151 transitions, 2347 flow [2022-12-13 17:02:14,560 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=2341, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2347, PETRI_PLACES=158, PETRI_TRANSITIONS=151} [2022-12-13 17:02:14,561 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 125 predicate places. [2022-12-13 17:02:14,561 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 151 transitions, 2347 flow [2022-12-13 17:02:14,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 158.22222222222223) internal successors, (1424), 9 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:14,561 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:14,561 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:14,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 17:02:14,561 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:14,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:14,562 INFO L85 PathProgramCache]: Analyzing trace with hash -2049744486, now seen corresponding path program 4 times [2022-12-13 17:02:14,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:14,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982739816] [2022-12-13 17:02:14,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:14,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:14,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:14,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:14,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982739816] [2022-12-13 17:02:14,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982739816] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:14,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:14,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 17:02:14,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212156024] [2022-12-13 17:02:14,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:14,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 17:02:14,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:14,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 17:02:14,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 17:02:15,001 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 358 [2022-12-13 17:02:15,001 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 151 transitions, 2347 flow. Second operand has 8 states, 8 states have (on average 158.375) internal successors, (1267), 8 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:15,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:15,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 358 [2022-12-13 17:02:15,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:15,326 INFO L130 PetriNetUnfolder]: 275/640 cut-off events. [2022-12-13 17:02:15,326 INFO L131 PetriNetUnfolder]: For 7309/7309 co-relation queries the response was YES. [2022-12-13 17:02:15,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4208 conditions, 640 events. 275/640 cut-off events. For 7309/7309 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3698 event pairs, 33 based on Foata normal form. 8/648 useless extension candidates. Maximal degree in co-relation 3953. Up to 260 conditions per place. [2022-12-13 17:02:15,330 INFO L137 encePairwiseOnDemand]: 348/358 looper letters, 110 selfloop transitions, 59 changer transitions 9/178 dead transitions. [2022-12-13 17:02:15,330 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 178 transitions, 2910 flow [2022-12-13 17:02:15,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 17:02:15,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 17:02:15,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1313 transitions. [2022-12-13 17:02:15,331 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4584497206703911 [2022-12-13 17:02:15,331 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1313 transitions. [2022-12-13 17:02:15,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1313 transitions. [2022-12-13 17:02:15,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:15,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1313 transitions. [2022-12-13 17:02:15,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 164.125) internal successors, (1313), 8 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:15,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 358.0) internal successors, (3222), 9 states have internal predecessors, (3222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:15,334 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 358.0) internal successors, (3222), 9 states have internal predecessors, (3222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:15,334 INFO L175 Difference]: Start difference. First operand has 158 places, 151 transitions, 2347 flow. Second operand 8 states and 1313 transitions. [2022-12-13 17:02:15,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 178 transitions, 2910 flow [2022-12-13 17:02:15,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 178 transitions, 2782 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-12-13 17:02:15,362 INFO L231 Difference]: Finished difference. Result has 152 places, 146 transitions, 2262 flow [2022-12-13 17:02:15,363 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=2205, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2262, PETRI_PLACES=152, PETRI_TRANSITIONS=146} [2022-12-13 17:02:15,363 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 119 predicate places. [2022-12-13 17:02:15,363 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 146 transitions, 2262 flow [2022-12-13 17:02:15,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 158.375) internal successors, (1267), 8 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:15,363 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:15,363 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:15,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 17:02:15,363 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:15,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:15,364 INFO L85 PathProgramCache]: Analyzing trace with hash -2052771552, now seen corresponding path program 4 times [2022-12-13 17:02:15,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:15,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897582367] [2022-12-13 17:02:15,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:15,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:15,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:15,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:15,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897582367] [2022-12-13 17:02:15,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897582367] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:15,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:15,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:02:15,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315393984] [2022-12-13 17:02:15,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:15,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:02:15,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:15,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:02:15,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:02:15,947 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 358 [2022-12-13 17:02:15,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 146 transitions, 2262 flow. Second operand has 10 states, 10 states have (on average 158.1) internal successors, (1581), 10 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:15,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:15,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 358 [2022-12-13 17:02:15,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:16,315 INFO L130 PetriNetUnfolder]: 260/603 cut-off events. [2022-12-13 17:02:16,315 INFO L131 PetriNetUnfolder]: For 7203/7203 co-relation queries the response was YES. [2022-12-13 17:02:16,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4045 conditions, 603 events. 260/603 cut-off events. For 7203/7203 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3366 event pairs, 76 based on Foata normal form. 4/607 useless extension candidates. Maximal degree in co-relation 3697. Up to 452 conditions per place. [2022-12-13 17:02:16,318 INFO L137 encePairwiseOnDemand]: 348/358 looper letters, 122 selfloop transitions, 40 changer transitions 7/169 dead transitions. [2022-12-13 17:02:16,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 169 transitions, 2727 flow [2022-12-13 17:02:16,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 17:02:16,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 17:02:16,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2104 transitions. [2022-12-13 17:02:16,320 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4520842286205415 [2022-12-13 17:02:16,320 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2104 transitions. [2022-12-13 17:02:16,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2104 transitions. [2022-12-13 17:02:16,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:16,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2104 transitions. [2022-12-13 17:02:16,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 161.84615384615384) internal successors, (2104), 13 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:16,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 358.0) internal successors, (5012), 14 states have internal predecessors, (5012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:16,324 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 358.0) internal successors, (5012), 14 states have internal predecessors, (5012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:16,324 INFO L175 Difference]: Start difference. First operand has 152 places, 146 transitions, 2262 flow. Second operand 13 states and 2104 transitions. [2022-12-13 17:02:16,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 169 transitions, 2727 flow [2022-12-13 17:02:16,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 169 transitions, 2509 flow, removed 2 selfloop flow, removed 9 redundant places. [2022-12-13 17:02:16,349 INFO L231 Difference]: Finished difference. Result has 148 places, 140 transitions, 2067 flow [2022-12-13 17:02:16,349 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=2028, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2067, PETRI_PLACES=148, PETRI_TRANSITIONS=140} [2022-12-13 17:02:16,349 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 115 predicate places. [2022-12-13 17:02:16,349 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 140 transitions, 2067 flow [2022-12-13 17:02:16,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 158.1) internal successors, (1581), 10 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:16,350 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:16,350 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:16,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 17:02:16,350 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:16,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:16,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1666441252, now seen corresponding path program 4 times [2022-12-13 17:02:16,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:16,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172113664] [2022-12-13 17:02:16,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:16,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:16,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:16,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:16,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172113664] [2022-12-13 17:02:16,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172113664] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:16,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:16,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:02:16,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492887781] [2022-12-13 17:02:16,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:16,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:02:16,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:16,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:02:16,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:02:16,981 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 358 [2022-12-13 17:02:16,982 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 140 transitions, 2067 flow. Second operand has 10 states, 10 states have (on average 158.1) internal successors, (1581), 10 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:16,982 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:16,982 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 358 [2022-12-13 17:02:16,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:17,426 INFO L130 PetriNetUnfolder]: 244/566 cut-off events. [2022-12-13 17:02:17,426 INFO L131 PetriNetUnfolder]: For 5602/5602 co-relation queries the response was YES. [2022-12-13 17:02:17,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3615 conditions, 566 events. 244/566 cut-off events. For 5602/5602 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3109 event pairs, 10 based on Foata normal form. 5/571 useless extension candidates. Maximal degree in co-relation 3376. Up to 155 conditions per place. [2022-12-13 17:02:17,429 INFO L137 encePairwiseOnDemand]: 347/358 looper letters, 71 selfloop transitions, 103 changer transitions 0/174 dead transitions. [2022-12-13 17:02:17,429 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 174 transitions, 2605 flow [2022-12-13 17:02:17,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 17:02:17,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-13 17:02:17,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3227 transitions. [2022-12-13 17:02:17,432 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4506983240223464 [2022-12-13 17:02:17,432 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3227 transitions. [2022-12-13 17:02:17,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3227 transitions. [2022-12-13 17:02:17,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:17,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3227 transitions. [2022-12-13 17:02:17,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 161.35) internal successors, (3227), 20 states have internal predecessors, (3227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:17,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 358.0) internal successors, (7518), 21 states have internal predecessors, (7518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:17,439 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 358.0) internal successors, (7518), 21 states have internal predecessors, (7518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:17,439 INFO L175 Difference]: Start difference. First operand has 148 places, 140 transitions, 2067 flow. Second operand 20 states and 3227 transitions. [2022-12-13 17:02:17,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 174 transitions, 2605 flow [2022-12-13 17:02:17,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 174 transitions, 2488 flow, removed 4 selfloop flow, removed 12 redundant places. [2022-12-13 17:02:17,460 INFO L231 Difference]: Finished difference. Result has 149 places, 142 transitions, 2259 flow [2022-12-13 17:02:17,460 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=1919, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2259, PETRI_PLACES=149, PETRI_TRANSITIONS=142} [2022-12-13 17:02:17,461 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 116 predicate places. [2022-12-13 17:02:17,461 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 142 transitions, 2259 flow [2022-12-13 17:02:17,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 158.1) internal successors, (1581), 10 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:17,461 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:17,461 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:17,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 17:02:17,461 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:17,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:17,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1733175583, now seen corresponding path program 5 times [2022-12-13 17:02:17,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:17,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151424999] [2022-12-13 17:02:17,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:17,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:17,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:17,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:17,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151424999] [2022-12-13 17:02:17,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151424999] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:17,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:17,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:02:17,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389044873] [2022-12-13 17:02:17,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:17,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:02:17,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:17,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:02:17,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:02:17,713 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 358 [2022-12-13 17:02:17,714 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 142 transitions, 2259 flow. Second operand has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:17,714 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:17,714 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 358 [2022-12-13 17:02:17,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:17,909 INFO L130 PetriNetUnfolder]: 221/531 cut-off events. [2022-12-13 17:02:17,909 INFO L131 PetriNetUnfolder]: For 6439/6441 co-relation queries the response was YES. [2022-12-13 17:02:17,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3493 conditions, 531 events. 221/531 cut-off events. For 6439/6441 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2968 event pairs, 39 based on Foata normal form. 11/541 useless extension candidates. Maximal degree in co-relation 3350. Up to 243 conditions per place. [2022-12-13 17:02:17,912 INFO L137 encePairwiseOnDemand]: 350/358 looper letters, 94 selfloop transitions, 51 changer transitions 0/155 dead transitions. [2022-12-13 17:02:17,912 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 155 transitions, 2591 flow [2022-12-13 17:02:17,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:02:17,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 17:02:17,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1182 transitions. [2022-12-13 17:02:17,914 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47166799680766164 [2022-12-13 17:02:17,914 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1182 transitions. [2022-12-13 17:02:17,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1182 transitions. [2022-12-13 17:02:17,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:17,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1182 transitions. [2022-12-13 17:02:17,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 168.85714285714286) internal successors, (1182), 7 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:17,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 358.0) internal successors, (2864), 8 states have internal predecessors, (2864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:17,922 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 358.0) internal successors, (2864), 8 states have internal predecessors, (2864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:17,922 INFO L175 Difference]: Start difference. First operand has 149 places, 142 transitions, 2259 flow. Second operand 7 states and 1182 transitions. [2022-12-13 17:02:17,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 155 transitions, 2591 flow [2022-12-13 17:02:17,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 155 transitions, 2404 flow, removed 10 selfloop flow, removed 20 redundant places. [2022-12-13 17:02:17,944 INFO L231 Difference]: Finished difference. Result has 135 places, 139 transitions, 2104 flow [2022-12-13 17:02:17,944 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=2002, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2104, PETRI_PLACES=135, PETRI_TRANSITIONS=139} [2022-12-13 17:02:17,944 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 102 predicate places. [2022-12-13 17:02:17,944 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 139 transitions, 2104 flow [2022-12-13 17:02:17,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:17,944 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:17,945 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:17,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 17:02:17,945 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:17,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:17,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1666441277, now seen corresponding path program 6 times [2022-12-13 17:02:17,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:17,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694367231] [2022-12-13 17:02:17,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:17,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:18,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:18,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:18,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694367231] [2022-12-13 17:02:18,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694367231] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:18,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:18,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:02:18,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929181464] [2022-12-13 17:02:18,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:18,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:02:18,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:18,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:02:18,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:02:18,113 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 358 [2022-12-13 17:02:18,114 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 139 transitions, 2104 flow. Second operand has 4 states, 4 states have (on average 174.5) internal successors, (698), 4 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:18,114 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:18,114 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 358 [2022-12-13 17:02:18,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:18,179 INFO L130 PetriNetUnfolder]: 52/148 cut-off events. [2022-12-13 17:02:18,179 INFO L131 PetriNetUnfolder]: For 1455/1457 co-relation queries the response was YES. [2022-12-13 17:02:18,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 890 conditions, 148 events. 52/148 cut-off events. For 1455/1457 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 529 event pairs, 11 based on Foata normal form. 27/174 useless extension candidates. Maximal degree in co-relation 860. Up to 68 conditions per place. [2022-12-13 17:02:18,180 INFO L137 encePairwiseOnDemand]: 355/358 looper letters, 38 selfloop transitions, 8 changer transitions 2/51 dead transitions. [2022-12-13 17:02:18,180 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 51 transitions, 679 flow [2022-12-13 17:02:18,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:02:18,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 17:02:18,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 713 transitions. [2022-12-13 17:02:18,181 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4979050279329609 [2022-12-13 17:02:18,181 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 713 transitions. [2022-12-13 17:02:18,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 713 transitions. [2022-12-13 17:02:18,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:18,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 713 transitions. [2022-12-13 17:02:18,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 178.25) internal successors, (713), 4 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:18,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 358.0) internal successors, (1790), 5 states have internal predecessors, (1790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:18,183 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 358.0) internal successors, (1790), 5 states have internal predecessors, (1790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:18,183 INFO L175 Difference]: Start difference. First operand has 135 places, 139 transitions, 2104 flow. Second operand 4 states and 713 transitions. [2022-12-13 17:02:18,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 51 transitions, 679 flow [2022-12-13 17:02:18,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 51 transitions, 524 flow, removed 19 selfloop flow, removed 28 redundant places. [2022-12-13 17:02:18,186 INFO L231 Difference]: Finished difference. Result has 73 places, 44 transitions, 415 flow [2022-12-13 17:02:18,186 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=415, PETRI_PLACES=73, PETRI_TRANSITIONS=44} [2022-12-13 17:02:18,187 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 40 predicate places. [2022-12-13 17:02:18,187 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 44 transitions, 415 flow [2022-12-13 17:02:18,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 174.5) internal successors, (698), 4 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:18,187 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:18,187 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:18,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 17:02:18,187 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:18,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:18,187 INFO L85 PathProgramCache]: Analyzing trace with hash -11233808, now seen corresponding path program 1 times [2022-12-13 17:02:18,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:18,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053675901] [2022-12-13 17:02:18,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:18,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:18,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:18,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:18,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053675901] [2022-12-13 17:02:18,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053675901] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:18,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:18,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 17:02:18,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655661391] [2022-12-13 17:02:18,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:18,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 17:02:18,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:18,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 17:02:18,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-12-13 17:02:18,857 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 358 [2022-12-13 17:02:18,859 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 44 transitions, 415 flow. Second operand has 11 states, 11 states have (on average 157.0909090909091) internal successors, (1728), 11 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:18,859 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:18,859 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 358 [2022-12-13 17:02:18,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:19,064 INFO L130 PetriNetUnfolder]: 52/141 cut-off events. [2022-12-13 17:02:19,064 INFO L131 PetriNetUnfolder]: For 395/395 co-relation queries the response was YES. [2022-12-13 17:02:19,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 675 conditions, 141 events. 52/141 cut-off events. For 395/395 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 459 event pairs, 3 based on Foata normal form. 3/144 useless extension candidates. Maximal degree in co-relation 658. Up to 32 conditions per place. [2022-12-13 17:02:19,065 INFO L137 encePairwiseOnDemand]: 348/358 looper letters, 28 selfloop transitions, 28 changer transitions 0/56 dead transitions. [2022-12-13 17:02:19,065 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 56 transitions, 550 flow [2022-12-13 17:02:19,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 17:02:19,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 17:02:19,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1599 transitions. [2022-12-13 17:02:19,066 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44664804469273744 [2022-12-13 17:02:19,066 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1599 transitions. [2022-12-13 17:02:19,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1599 transitions. [2022-12-13 17:02:19,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:19,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1599 transitions. [2022-12-13 17:02:19,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 159.9) internal successors, (1599), 10 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:19,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 358.0) internal successors, (3938), 11 states have internal predecessors, (3938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:19,070 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 358.0) internal successors, (3938), 11 states have internal predecessors, (3938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:19,070 INFO L175 Difference]: Start difference. First operand has 73 places, 44 transitions, 415 flow. Second operand 10 states and 1599 transitions. [2022-12-13 17:02:19,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 56 transitions, 550 flow [2022-12-13 17:02:19,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 56 transitions, 497 flow, removed 7 selfloop flow, removed 8 redundant places. [2022-12-13 17:02:19,072 INFO L231 Difference]: Finished difference. Result has 69 places, 42 transitions, 400 flow [2022-12-13 17:02:19,072 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=400, PETRI_PLACES=69, PETRI_TRANSITIONS=42} [2022-12-13 17:02:19,072 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 36 predicate places. [2022-12-13 17:02:19,072 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 42 transitions, 400 flow [2022-12-13 17:02:19,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 157.0909090909091) internal successors, (1728), 11 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:19,073 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:19,073 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:19,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 17:02:19,073 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:19,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:19,073 INFO L85 PathProgramCache]: Analyzing trace with hash -804043959, now seen corresponding path program 1 times [2022-12-13 17:02:19,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:19,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120944680] [2022-12-13 17:02:19,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:19,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:19,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:19,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:19,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120944680] [2022-12-13 17:02:19,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120944680] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:19,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:19,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 17:02:19,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610055031] [2022-12-13 17:02:19,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:19,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 17:02:19,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:19,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 17:02:19,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:02:20,521 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 358 [2022-12-13 17:02:20,522 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 42 transitions, 400 flow. Second operand has 13 states, 13 states have (on average 150.15384615384616) internal successors, (1952), 13 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:20,522 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:20,522 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 358 [2022-12-13 17:02:20,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:20,756 INFO L130 PetriNetUnfolder]: 58/169 cut-off events. [2022-12-13 17:02:20,756 INFO L131 PetriNetUnfolder]: For 482/482 co-relation queries the response was YES. [2022-12-13 17:02:20,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 797 conditions, 169 events. 58/169 cut-off events. For 482/482 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 622 event pairs, 23 based on Foata normal form. 4/173 useless extension candidates. Maximal degree in co-relation 783. Up to 122 conditions per place. [2022-12-13 17:02:20,757 INFO L137 encePairwiseOnDemand]: 348/358 looper letters, 48 selfloop transitions, 15 changer transitions 0/63 dead transitions. [2022-12-13 17:02:20,757 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 63 transitions, 691 flow [2022-12-13 17:02:20,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:02:20,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 17:02:20,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1676 transitions. [2022-12-13 17:02:20,759 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.425596749619096 [2022-12-13 17:02:20,759 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1676 transitions. [2022-12-13 17:02:20,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1676 transitions. [2022-12-13 17:02:20,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:20,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1676 transitions. [2022-12-13 17:02:20,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 152.36363636363637) internal successors, (1676), 11 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:20,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:20,765 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:20,765 INFO L175 Difference]: Start difference. First operand has 69 places, 42 transitions, 400 flow. Second operand 11 states and 1676 transitions. [2022-12-13 17:02:20,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 63 transitions, 691 flow [2022-12-13 17:02:20,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 63 transitions, 604 flow, removed 1 selfloop flow, removed 9 redundant places. [2022-12-13 17:02:20,767 INFO L231 Difference]: Finished difference. Result has 78 places, 53 transitions, 502 flow [2022-12-13 17:02:20,767 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=502, PETRI_PLACES=78, PETRI_TRANSITIONS=53} [2022-12-13 17:02:20,767 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 45 predicate places. [2022-12-13 17:02:20,767 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 53 transitions, 502 flow [2022-12-13 17:02:20,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 150.15384615384616) internal successors, (1952), 13 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:20,768 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:20,768 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:20,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 17:02:20,768 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:20,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:20,768 INFO L85 PathProgramCache]: Analyzing trace with hash -344297910, now seen corresponding path program 1 times [2022-12-13 17:02:20,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:20,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90556642] [2022-12-13 17:02:20,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:20,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:21,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:21,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:21,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90556642] [2022-12-13 17:02:21,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90556642] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:21,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:21,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 17:02:21,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466590634] [2022-12-13 17:02:21,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:21,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 17:02:21,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:21,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 17:02:21,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-12-13 17:02:21,777 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 358 [2022-12-13 17:02:21,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 53 transitions, 502 flow. Second operand has 12 states, 12 states have (on average 150.25) internal successors, (1803), 12 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:21,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:21,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 358 [2022-12-13 17:02:21,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:22,059 INFO L130 PetriNetUnfolder]: 64/198 cut-off events. [2022-12-13 17:02:22,059 INFO L131 PetriNetUnfolder]: For 641/641 co-relation queries the response was YES. [2022-12-13 17:02:22,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 967 conditions, 198 events. 64/198 cut-off events. For 641/641 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 855 event pairs, 17 based on Foata normal form. 4/202 useless extension candidates. Maximal degree in co-relation 947. Up to 83 conditions per place. [2022-12-13 17:02:22,060 INFO L137 encePairwiseOnDemand]: 348/358 looper letters, 71 selfloop transitions, 16 changer transitions 0/87 dead transitions. [2022-12-13 17:02:22,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 87 transitions, 953 flow [2022-12-13 17:02:22,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:02:22,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 17:02:22,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1683 transitions. [2022-12-13 17:02:22,062 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4273743016759777 [2022-12-13 17:02:22,062 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1683 transitions. [2022-12-13 17:02:22,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1683 transitions. [2022-12-13 17:02:22,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:22,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1683 transitions. [2022-12-13 17:02:22,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 153.0) internal successors, (1683), 11 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:22,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:22,065 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:22,065 INFO L175 Difference]: Start difference. First operand has 78 places, 53 transitions, 502 flow. Second operand 11 states and 1683 transitions. [2022-12-13 17:02:22,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 87 transitions, 953 flow [2022-12-13 17:02:22,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 87 transitions, 949 flow, removed 2 selfloop flow, removed 0 redundant places. [2022-12-13 17:02:22,068 INFO L231 Difference]: Finished difference. Result has 95 places, 62 transitions, 671 flow [2022-12-13 17:02:22,068 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=671, PETRI_PLACES=95, PETRI_TRANSITIONS=62} [2022-12-13 17:02:22,068 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 62 predicate places. [2022-12-13 17:02:22,068 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 62 transitions, 671 flow [2022-12-13 17:02:22,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 150.25) internal successors, (1803), 12 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:22,069 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:22,069 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:22,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 17:02:22,069 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:22,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:22,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1347133659, now seen corresponding path program 2 times [2022-12-13 17:02:22,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:22,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132753874] [2022-12-13 17:02:22,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:22,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:22,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:22,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:22,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132753874] [2022-12-13 17:02:22,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132753874] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:22,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:22,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 17:02:22,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056594798] [2022-12-13 17:02:22,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:22,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 17:02:22,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:22,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 17:02:22,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:02:23,193 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 358 [2022-12-13 17:02:23,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 62 transitions, 671 flow. Second operand has 13 states, 13 states have (on average 150.15384615384616) internal successors, (1952), 13 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:23,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:23,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 358 [2022-12-13 17:02:23,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:23,507 INFO L130 PetriNetUnfolder]: 69/221 cut-off events. [2022-12-13 17:02:23,507 INFO L131 PetriNetUnfolder]: For 949/949 co-relation queries the response was YES. [2022-12-13 17:02:23,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1176 conditions, 221 events. 69/221 cut-off events. For 949/949 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1002 event pairs, 16 based on Foata normal form. 4/225 useless extension candidates. Maximal degree in co-relation 1148. Up to 72 conditions per place. [2022-12-13 17:02:23,508 INFO L137 encePairwiseOnDemand]: 346/358 looper letters, 46 selfloop transitions, 39 changer transitions 0/85 dead transitions. [2022-12-13 17:02:23,509 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 85 transitions, 980 flow [2022-12-13 17:02:23,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:02:23,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 17:02:23,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1688 transitions. [2022-12-13 17:02:23,510 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4286439817166074 [2022-12-13 17:02:23,510 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1688 transitions. [2022-12-13 17:02:23,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1688 transitions. [2022-12-13 17:02:23,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:23,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1688 transitions. [2022-12-13 17:02:23,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 153.45454545454547) internal successors, (1688), 11 states have internal predecessors, (1688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:23,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:23,514 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:23,514 INFO L175 Difference]: Start difference. First operand has 95 places, 62 transitions, 671 flow. Second operand 11 states and 1688 transitions. [2022-12-13 17:02:23,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 85 transitions, 980 flow [2022-12-13 17:02:23,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 85 transitions, 961 flow, removed 7 selfloop flow, removed 2 redundant places. [2022-12-13 17:02:23,518 INFO L231 Difference]: Finished difference. Result has 106 places, 68 transitions, 828 flow [2022-12-13 17:02:23,518 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=828, PETRI_PLACES=106, PETRI_TRANSITIONS=68} [2022-12-13 17:02:23,518 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 73 predicate places. [2022-12-13 17:02:23,518 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 68 transitions, 828 flow [2022-12-13 17:02:23,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 150.15384615384616) internal successors, (1952), 13 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:23,519 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:23,519 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:23,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 17:02:23,519 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:23,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:23,519 INFO L85 PathProgramCache]: Analyzing trace with hash 929396678, now seen corresponding path program 2 times [2022-12-13 17:02:23,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:23,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641700035] [2022-12-13 17:02:23,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:23,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:23,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:23,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:23,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641700035] [2022-12-13 17:02:23,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641700035] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:23,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:23,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 17:02:23,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951624991] [2022-12-13 17:02:23,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:23,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 17:02:23,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:23,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 17:02:23,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-13 17:02:24,409 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 358 [2022-12-13 17:02:24,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 68 transitions, 828 flow. Second operand has 12 states, 12 states have (on average 150.25) internal successors, (1803), 12 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:24,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:24,410 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 358 [2022-12-13 17:02:24,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:24,730 INFO L130 PetriNetUnfolder]: 80/279 cut-off events. [2022-12-13 17:02:24,730 INFO L131 PetriNetUnfolder]: For 1643/1643 co-relation queries the response was YES. [2022-12-13 17:02:24,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1618 conditions, 279 events. 80/279 cut-off events. For 1643/1643 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1488 event pairs, 39 based on Foata normal form. 4/283 useless extension candidates. Maximal degree in co-relation 1588. Up to 124 conditions per place. [2022-12-13 17:02:24,731 INFO L137 encePairwiseOnDemand]: 346/358 looper letters, 78 selfloop transitions, 31 changer transitions 0/109 dead transitions. [2022-12-13 17:02:24,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 109 transitions, 1476 flow [2022-12-13 17:02:24,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 17:02:24,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 17:02:24,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1842 transitions. [2022-12-13 17:02:24,733 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42877094972067037 [2022-12-13 17:02:24,733 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1842 transitions. [2022-12-13 17:02:24,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1842 transitions. [2022-12-13 17:02:24,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:24,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1842 transitions. [2022-12-13 17:02:24,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 153.5) internal successors, (1842), 12 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:24,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 358.0) internal successors, (4654), 13 states have internal predecessors, (4654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:24,737 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 358.0) internal successors, (4654), 13 states have internal predecessors, (4654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:24,737 INFO L175 Difference]: Start difference. First operand has 106 places, 68 transitions, 828 flow. Second operand 12 states and 1842 transitions. [2022-12-13 17:02:24,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 109 transitions, 1476 flow [2022-12-13 17:02:24,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 109 transitions, 1395 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-12-13 17:02:24,742 INFO L231 Difference]: Finished difference. Result has 117 places, 83 transitions, 1097 flow [2022-12-13 17:02:24,742 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1097, PETRI_PLACES=117, PETRI_TRANSITIONS=83} [2022-12-13 17:02:24,743 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 84 predicate places. [2022-12-13 17:02:24,743 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 83 transitions, 1097 flow [2022-12-13 17:02:24,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 150.25) internal successors, (1803), 12 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:24,743 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:24,743 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:24,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 17:02:24,743 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:24,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:24,744 INFO L85 PathProgramCache]: Analyzing trace with hash -826796799, now seen corresponding path program 3 times [2022-12-13 17:02:24,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:24,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103490014] [2022-12-13 17:02:24,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:24,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:25,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:25,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:25,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103490014] [2022-12-13 17:02:25,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103490014] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:25,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:25,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 17:02:25,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082043999] [2022-12-13 17:02:25,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:25,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 17:02:25,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:25,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 17:02:25,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:02:25,947 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 358 [2022-12-13 17:02:25,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 83 transitions, 1097 flow. Second operand has 13 states, 13 states have (on average 150.15384615384616) internal successors, (1952), 13 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:25,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:25,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 358 [2022-12-13 17:02:25,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:26,486 INFO L130 PetriNetUnfolder]: 78/281 cut-off events. [2022-12-13 17:02:26,486 INFO L131 PetriNetUnfolder]: For 2156/2156 co-relation queries the response was YES. [2022-12-13 17:02:26,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1668 conditions, 281 events. 78/281 cut-off events. For 2156/2156 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1517 event pairs, 20 based on Foata normal form. 12/293 useless extension candidates. Maximal degree in co-relation 1631. Up to 66 conditions per place. [2022-12-13 17:02:26,487 INFO L137 encePairwiseOnDemand]: 346/358 looper letters, 50 selfloop transitions, 56 changer transitions 7/113 dead transitions. [2022-12-13 17:02:26,487 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 113 transitions, 1507 flow [2022-12-13 17:02:26,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 17:02:26,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 17:02:26,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2595 transitions. [2022-12-13 17:02:26,489 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42638843246795927 [2022-12-13 17:02:26,490 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2595 transitions. [2022-12-13 17:02:26,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2595 transitions. [2022-12-13 17:02:26,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:26,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2595 transitions. [2022-12-13 17:02:26,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 152.64705882352942) internal successors, (2595), 17 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) [2022-12-13 17:02:26,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 358.0) internal successors, (6444), 18 states have internal predecessors, (6444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:26,495 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 358.0) internal successors, (6444), 18 states have internal predecessors, (6444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:26,495 INFO L175 Difference]: Start difference. First operand has 117 places, 83 transitions, 1097 flow. Second operand 17 states and 2595 transitions. [2022-12-13 17:02:26,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 113 transitions, 1507 flow [2022-12-13 17:02:26,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 113 transitions, 1472 flow, removed 15 selfloop flow, removed 2 redundant places. [2022-12-13 17:02:26,502 INFO L231 Difference]: Finished difference. Result has 133 places, 87 transitions, 1235 flow [2022-12-13 17:02:26,502 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=992, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1235, PETRI_PLACES=133, PETRI_TRANSITIONS=87} [2022-12-13 17:02:26,502 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 100 predicate places. [2022-12-13 17:02:26,502 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 87 transitions, 1235 flow [2022-12-13 17:02:26,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 150.15384615384616) internal successors, (1952), 13 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:26,503 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:26,503 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:26,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 17:02:26,503 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:26,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:26,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1176237052, now seen corresponding path program 3 times [2022-12-13 17:02:26,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:26,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29819465] [2022-12-13 17:02:26,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:26,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:26,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:26,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:26,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29819465] [2022-12-13 17:02:26,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29819465] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:26,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:26,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 17:02:26,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913835620] [2022-12-13 17:02:26,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:26,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 17:02:26,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:26,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 17:02:26,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-12-13 17:02:27,235 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 358 [2022-12-13 17:02:27,236 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 87 transitions, 1235 flow. Second operand has 12 states, 12 states have (on average 150.25) internal successors, (1803), 12 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:27,236 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:27,236 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 358 [2022-12-13 17:02:27,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:27,511 INFO L130 PetriNetUnfolder]: 70/250 cut-off events. [2022-12-13 17:02:27,511 INFO L131 PetriNetUnfolder]: For 2206/2206 co-relation queries the response was YES. [2022-12-13 17:02:27,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1608 conditions, 250 events. 70/250 cut-off events. For 2206/2206 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1274 event pairs, 28 based on Foata normal form. 4/254 useless extension candidates. Maximal degree in co-relation 1569. Up to 155 conditions per place. [2022-12-13 17:02:27,513 INFO L137 encePairwiseOnDemand]: 346/358 looper letters, 53 selfloop transitions, 43 changer transitions 7/103 dead transitions. [2022-12-13 17:02:27,513 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 103 transitions, 1552 flow [2022-12-13 17:02:27,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:02:27,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 17:02:27,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1686 transitions. [2022-12-13 17:02:27,514 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4281361097003555 [2022-12-13 17:02:27,514 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1686 transitions. [2022-12-13 17:02:27,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1686 transitions. [2022-12-13 17:02:27,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:27,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1686 transitions. [2022-12-13 17:02:27,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 153.27272727272728) internal successors, (1686), 11 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:27,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:27,518 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:27,518 INFO L175 Difference]: Start difference. First operand has 133 places, 87 transitions, 1235 flow. Second operand 11 states and 1686 transitions. [2022-12-13 17:02:27,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 103 transitions, 1552 flow [2022-12-13 17:02:27,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 103 transitions, 1356 flow, removed 49 selfloop flow, removed 13 redundant places. [2022-12-13 17:02:27,525 INFO L231 Difference]: Finished difference. Result has 129 places, 87 transitions, 1171 flow [2022-12-13 17:02:27,525 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=1061, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1171, PETRI_PLACES=129, PETRI_TRANSITIONS=87} [2022-12-13 17:02:27,526 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 96 predicate places. [2022-12-13 17:02:27,526 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 87 transitions, 1171 flow [2022-12-13 17:02:27,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 150.25) internal successors, (1803), 12 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:27,526 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:27,526 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:27,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 17:02:27,526 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:27,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:27,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1696560892, now seen corresponding path program 4 times [2022-12-13 17:02:27,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:27,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23239086] [2022-12-13 17:02:27,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:27,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:27,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:27,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:27,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23239086] [2022-12-13 17:02:27,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23239086] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:27,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:27,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 17:02:27,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69825515] [2022-12-13 17:02:27,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:27,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 17:02:27,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:27,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 17:02:27,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-12-13 17:02:28,312 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 358 [2022-12-13 17:02:28,313 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 87 transitions, 1171 flow. Second operand has 12 states, 12 states have (on average 150.25) internal successors, (1803), 12 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:28,313 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:28,313 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 358 [2022-12-13 17:02:28,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:28,642 INFO L130 PetriNetUnfolder]: 71/254 cut-off events. [2022-12-13 17:02:28,642 INFO L131 PetriNetUnfolder]: For 1852/1852 co-relation queries the response was YES. [2022-12-13 17:02:28,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1570 conditions, 254 events. 71/254 cut-off events. For 1852/1852 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1311 event pairs, 28 based on Foata normal form. 4/258 useless extension candidates. Maximal degree in co-relation 1534. Up to 155 conditions per place. [2022-12-13 17:02:28,643 INFO L137 encePairwiseOnDemand]: 346/358 looper letters, 49 selfloop transitions, 41 changer transitions 17/107 dead transitions. [2022-12-13 17:02:28,643 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 107 transitions, 1530 flow [2022-12-13 17:02:28,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 17:02:28,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 17:02:28,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1988 transitions. [2022-12-13 17:02:28,645 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4271594327460249 [2022-12-13 17:02:28,645 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1988 transitions. [2022-12-13 17:02:28,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1988 transitions. [2022-12-13 17:02:28,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:28,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1988 transitions. [2022-12-13 17:02:28,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 152.92307692307693) internal successors, (1988), 13 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:28,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 358.0) internal successors, (5012), 14 states have internal predecessors, (5012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:28,649 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 358.0) internal successors, (5012), 14 states have internal predecessors, (5012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:28,649 INFO L175 Difference]: Start difference. First operand has 129 places, 87 transitions, 1171 flow. Second operand 13 states and 1988 transitions. [2022-12-13 17:02:28,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 107 transitions, 1530 flow [2022-12-13 17:02:28,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 107 transitions, 1454 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-12-13 17:02:28,656 INFO L231 Difference]: Finished difference. Result has 136 places, 83 transitions, 1140 flow [2022-12-13 17:02:28,656 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=1103, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1140, PETRI_PLACES=136, PETRI_TRANSITIONS=83} [2022-12-13 17:02:28,656 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 103 predicate places. [2022-12-13 17:02:28,656 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 83 transitions, 1140 flow [2022-12-13 17:02:28,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 150.25) internal successors, (1803), 12 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:28,657 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:28,657 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:28,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-13 17:02:28,657 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:28,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:28,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1392634530, now seen corresponding path program 5 times [2022-12-13 17:02:28,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:28,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975664565] [2022-12-13 17:02:28,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:28,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:29,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:29,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:29,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975664565] [2022-12-13 17:02:29,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975664565] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:29,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:29,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 17:02:29,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204396677] [2022-12-13 17:02:29,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:29,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 17:02:29,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:29,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 17:02:29,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-12-13 17:02:29,526 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 358 [2022-12-13 17:02:29,527 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 83 transitions, 1140 flow. Second operand has 12 states, 12 states have (on average 150.25) internal successors, (1803), 12 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:29,527 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:29,527 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 358 [2022-12-13 17:02:29,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:29,755 INFO L130 PetriNetUnfolder]: 59/219 cut-off events. [2022-12-13 17:02:29,755 INFO L131 PetriNetUnfolder]: For 1617/1617 co-relation queries the response was YES. [2022-12-13 17:02:29,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1368 conditions, 219 events. 59/219 cut-off events. For 1617/1617 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1055 event pairs, 30 based on Foata normal form. 4/223 useless extension candidates. Maximal degree in co-relation 1331. Up to 138 conditions per place. [2022-12-13 17:02:29,756 INFO L137 encePairwiseOnDemand]: 346/358 looper letters, 51 selfloop transitions, 25 changer transitions 19/95 dead transitions. [2022-12-13 17:02:29,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 95 transitions, 1378 flow [2022-12-13 17:02:29,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:02:29,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 17:02:29,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1683 transitions. [2022-12-13 17:02:29,757 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4273743016759777 [2022-12-13 17:02:29,758 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1683 transitions. [2022-12-13 17:02:29,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1683 transitions. [2022-12-13 17:02:29,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:29,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1683 transitions. [2022-12-13 17:02:29,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 153.0) internal successors, (1683), 11 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:29,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:29,761 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:29,761 INFO L175 Difference]: Start difference. First operand has 136 places, 83 transitions, 1140 flow. Second operand 11 states and 1683 transitions. [2022-12-13 17:02:29,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 95 transitions, 1378 flow [2022-12-13 17:02:29,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 95 transitions, 1289 flow, removed 3 selfloop flow, removed 12 redundant places. [2022-12-13 17:02:29,767 INFO L231 Difference]: Finished difference. Result has 133 places, 72 transitions, 955 flow [2022-12-13 17:02:29,767 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=1053, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=955, PETRI_PLACES=133, PETRI_TRANSITIONS=72} [2022-12-13 17:02:29,768 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 100 predicate places. [2022-12-13 17:02:29,768 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 72 transitions, 955 flow [2022-12-13 17:02:29,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 150.25) internal successors, (1803), 12 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:29,768 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:29,768 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:29,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-13 17:02:29,768 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:29,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:29,769 INFO L85 PathProgramCache]: Analyzing trace with hash 2062887951, now seen corresponding path program 4 times [2022-12-13 17:02:29,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:29,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362459280] [2022-12-13 17:02:29,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:29,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:30,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:30,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:30,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362459280] [2022-12-13 17:02:30,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362459280] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:30,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:30,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 17:02:30,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887501401] [2022-12-13 17:02:30,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:30,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 17:02:30,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:30,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 17:02:30,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:02:30,804 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 358 [2022-12-13 17:02:30,805 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 72 transitions, 955 flow. Second operand has 13 states, 13 states have (on average 150.15384615384616) internal successors, (1952), 13 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:30,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:30,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 358 [2022-12-13 17:02:30,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:31,080 INFO L130 PetriNetUnfolder]: 47/178 cut-off events. [2022-12-13 17:02:31,080 INFO L131 PetriNetUnfolder]: For 1252/1252 co-relation queries the response was YES. [2022-12-13 17:02:31,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1090 conditions, 178 events. 47/178 cut-off events. For 1252/1252 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 785 event pairs, 18 based on Foata normal form. 4/182 useless extension candidates. Maximal degree in co-relation 1055. Up to 103 conditions per place. [2022-12-13 17:02:31,081 INFO L137 encePairwiseOnDemand]: 348/358 looper letters, 49 selfloop transitions, 13 changer transitions 19/81 dead transitions. [2022-12-13 17:02:31,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 81 transitions, 1162 flow [2022-12-13 17:02:31,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:02:31,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 17:02:31,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1678 transitions. [2022-12-13 17:02:31,083 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4261046216353479 [2022-12-13 17:02:31,083 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1678 transitions. [2022-12-13 17:02:31,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1678 transitions. [2022-12-13 17:02:31,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:31,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1678 transitions. [2022-12-13 17:02:31,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 152.54545454545453) internal successors, (1678), 11 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:31,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:31,086 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:31,086 INFO L175 Difference]: Start difference. First operand has 133 places, 72 transitions, 955 flow. Second operand 11 states and 1678 transitions. [2022-12-13 17:02:31,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 81 transitions, 1162 flow [2022-12-13 17:02:31,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 81 transitions, 1022 flow, removed 11 selfloop flow, removed 15 redundant places. [2022-12-13 17:02:31,091 INFO L231 Difference]: Finished difference. Result has 123 places, 59 transitions, 671 flow [2022-12-13 17:02:31,091 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=787, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=671, PETRI_PLACES=123, PETRI_TRANSITIONS=59} [2022-12-13 17:02:31,091 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 90 predicate places. [2022-12-13 17:02:31,091 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 59 transitions, 671 flow [2022-12-13 17:02:31,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 150.15384615384616) internal successors, (1952), 13 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:31,091 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:31,092 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:31,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-13 17:02:31,092 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:31,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:31,092 INFO L85 PathProgramCache]: Analyzing trace with hash -804030964, now seen corresponding path program 6 times [2022-12-13 17:02:31,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:31,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423688395] [2022-12-13 17:02:31,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:31,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:31,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:31,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:31,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423688395] [2022-12-13 17:02:31,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423688395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:31,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:31,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 17:02:31,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367291805] [2022-12-13 17:02:31,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:31,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 17:02:31,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:31,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 17:02:31,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-12-13 17:02:31,851 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 358 [2022-12-13 17:02:31,852 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 59 transitions, 671 flow. Second operand has 12 states, 12 states have (on average 150.25) internal successors, (1803), 12 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:31,852 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:31,852 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 358 [2022-12-13 17:02:31,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:32,060 INFO L130 PetriNetUnfolder]: 38/140 cut-off events. [2022-12-13 17:02:32,060 INFO L131 PetriNetUnfolder]: For 717/717 co-relation queries the response was YES. [2022-12-13 17:02:32,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 802 conditions, 140 events. 38/140 cut-off events. For 717/717 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 557 event pairs, 15 based on Foata normal form. 4/144 useless extension candidates. Maximal degree in co-relation 775. Up to 80 conditions per place. [2022-12-13 17:02:32,061 INFO L137 encePairwiseOnDemand]: 348/358 looper letters, 41 selfloop transitions, 9 changer transitions 17/67 dead transitions. [2022-12-13 17:02:32,061 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 67 transitions, 825 flow [2022-12-13 17:02:32,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:02:32,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 17:02:32,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1676 transitions. [2022-12-13 17:02:32,062 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.425596749619096 [2022-12-13 17:02:32,063 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1676 transitions. [2022-12-13 17:02:32,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1676 transitions. [2022-12-13 17:02:32,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:32,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1676 transitions. [2022-12-13 17:02:32,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 152.36363636363637) internal successors, (1676), 11 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:32,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:32,066 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:32,066 INFO L175 Difference]: Start difference. First operand has 123 places, 59 transitions, 671 flow. Second operand 11 states and 1676 transitions. [2022-12-13 17:02:32,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 67 transitions, 825 flow [2022-12-13 17:02:32,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 67 transitions, 760 flow, removed 6 selfloop flow, removed 15 redundant places. [2022-12-13 17:02:32,069 INFO L231 Difference]: Finished difference. Result has 108 places, 46 transitions, 467 flow [2022-12-13 17:02:32,069 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=467, PETRI_PLACES=108, PETRI_TRANSITIONS=46} [2022-12-13 17:02:32,070 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 75 predicate places. [2022-12-13 17:02:32,070 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 46 transitions, 467 flow [2022-12-13 17:02:32,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 150.25) internal successors, (1803), 12 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:32,070 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:32,070 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:32,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-13 17:02:32,070 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:32,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:32,070 INFO L85 PathProgramCache]: Analyzing trace with hash 245396008, now seen corresponding path program 7 times [2022-12-13 17:02:32,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:32,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672219878] [2022-12-13 17:02:32,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:32,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:32,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:32,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:32,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672219878] [2022-12-13 17:02:32,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672219878] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:32,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:32,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 17:02:32,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102383953] [2022-12-13 17:02:32,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:32,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 17:02:32,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:32,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 17:02:32,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:02:33,162 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 358 [2022-12-13 17:02:33,163 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 46 transitions, 467 flow. Second operand has 13 states, 13 states have (on average 149.15384615384616) internal successors, (1939), 13 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:33,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:33,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 358 [2022-12-13 17:02:33,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:33,519 INFO L130 PetriNetUnfolder]: 40/150 cut-off events. [2022-12-13 17:02:33,519 INFO L131 PetriNetUnfolder]: For 664/664 co-relation queries the response was YES. [2022-12-13 17:02:33,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 819 conditions, 150 events. 40/150 cut-off events. For 664/664 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 652 event pairs, 13 based on Foata normal form. 8/158 useless extension candidates. Maximal degree in co-relation 798. Up to 36 conditions per place. [2022-12-13 17:02:33,520 INFO L137 encePairwiseOnDemand]: 347/358 looper letters, 34 selfloop transitions, 32 changer transitions 8/74 dead transitions. [2022-12-13 17:02:33,520 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 74 transitions, 835 flow [2022-12-13 17:02:33,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 17:02:33,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 17:02:33,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2120 transitions. [2022-12-13 17:02:33,522 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4229848363926576 [2022-12-13 17:02:33,522 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2120 transitions. [2022-12-13 17:02:33,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2120 transitions. [2022-12-13 17:02:33,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:33,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2120 transitions. [2022-12-13 17:02:33,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 151.42857142857142) internal successors, (2120), 14 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:33,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 358.0) internal successors, (5370), 15 states have internal predecessors, (5370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:33,526 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 358.0) internal successors, (5370), 15 states have internal predecessors, (5370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:33,526 INFO L175 Difference]: Start difference. First operand has 108 places, 46 transitions, 467 flow. Second operand 14 states and 2120 transitions. [2022-12-13 17:02:33,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 74 transitions, 835 flow [2022-12-13 17:02:33,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 74 transitions, 711 flow, removed 12 selfloop flow, removed 18 redundant places. [2022-12-13 17:02:33,528 INFO L231 Difference]: Finished difference. Result has 92 places, 52 transitions, 538 flow [2022-12-13 17:02:33,528 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=538, PETRI_PLACES=92, PETRI_TRANSITIONS=52} [2022-12-13 17:02:33,528 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 59 predicate places. [2022-12-13 17:02:33,529 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 52 transitions, 538 flow [2022-12-13 17:02:33,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 149.15384615384616) internal successors, (1939), 13 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:33,529 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:33,529 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:33,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-13 17:02:33,529 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:33,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:33,529 INFO L85 PathProgramCache]: Analyzing trace with hash -274940852, now seen corresponding path program 8 times [2022-12-13 17:02:33,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:33,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530723312] [2022-12-13 17:02:33,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:33,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:33,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:33,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:33,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530723312] [2022-12-13 17:02:33,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530723312] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:33,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:33,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 17:02:33,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899946440] [2022-12-13 17:02:33,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:33,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 17:02:33,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:33,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 17:02:33,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:02:34,543 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 358 [2022-12-13 17:02:34,544 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 52 transitions, 538 flow. Second operand has 13 states, 13 states have (on average 149.15384615384616) internal successors, (1939), 13 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:34,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:34,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 358 [2022-12-13 17:02:34,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:34,759 INFO L130 PetriNetUnfolder]: 30/117 cut-off events. [2022-12-13 17:02:34,759 INFO L131 PetriNetUnfolder]: For 471/471 co-relation queries the response was YES. [2022-12-13 17:02:34,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 649 conditions, 117 events. 30/117 cut-off events. For 471/471 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 448 event pairs, 8 based on Foata normal form. 8/125 useless extension candidates. Maximal degree in co-relation 632. Up to 32 conditions per place. [2022-12-13 17:02:34,760 INFO L137 encePairwiseOnDemand]: 347/358 looper letters, 29 selfloop transitions, 24 changer transitions 6/59 dead transitions. [2022-12-13 17:02:34,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 59 transitions, 659 flow [2022-12-13 17:02:34,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:02:34,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 17:02:34,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1666 transitions. [2022-12-13 17:02:34,762 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42305738953783645 [2022-12-13 17:02:34,762 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1666 transitions. [2022-12-13 17:02:34,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1666 transitions. [2022-12-13 17:02:34,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:34,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1666 transitions. [2022-12-13 17:02:34,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 151.45454545454547) internal successors, (1666), 11 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:34,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:34,766 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:34,766 INFO L175 Difference]: Start difference. First operand has 92 places, 52 transitions, 538 flow. Second operand 11 states and 1666 transitions. [2022-12-13 17:02:34,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 59 transitions, 659 flow [2022-12-13 17:02:34,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 59 transitions, 616 flow, removed 4 selfloop flow, removed 8 redundant places. [2022-12-13 17:02:34,768 INFO L231 Difference]: Finished difference. Result has 92 places, 44 transitions, 447 flow [2022-12-13 17:02:34,768 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=447, PETRI_PLACES=92, PETRI_TRANSITIONS=44} [2022-12-13 17:02:34,768 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 59 predicate places. [2022-12-13 17:02:34,768 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 44 transitions, 447 flow [2022-12-13 17:02:34,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 149.15384615384616) internal successors, (1939), 13 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:34,769 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:34,769 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:34,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-13 17:02:34,769 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:34,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:34,769 INFO L85 PathProgramCache]: Analyzing trace with hash -971583787, now seen corresponding path program 5 times [2022-12-13 17:02:34,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:34,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245843602] [2022-12-13 17:02:34,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:34,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:35,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:35,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:35,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245843602] [2022-12-13 17:02:35,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245843602] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:35,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:35,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 17:02:35,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869268822] [2022-12-13 17:02:35,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:35,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 17:02:35,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:35,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 17:02:35,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:02:36,106 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 358 [2022-12-13 17:02:36,107 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 44 transitions, 447 flow. Second operand has 13 states, 13 states have (on average 150.15384615384616) internal successors, (1952), 13 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:36,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:36,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 358 [2022-12-13 17:02:36,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:36,551 INFO L130 PetriNetUnfolder]: 23/90 cut-off events. [2022-12-13 17:02:36,551 INFO L131 PetriNetUnfolder]: For 358/358 co-relation queries the response was YES. [2022-12-13 17:02:36,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 90 events. 23/90 cut-off events. For 358/358 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 282 event pairs, 7 based on Foata normal form. 4/94 useless extension candidates. Maximal degree in co-relation 463. Up to 36 conditions per place. [2022-12-13 17:02:36,552 INFO L137 encePairwiseOnDemand]: 348/358 looper letters, 24 selfloop transitions, 19 changer transitions 8/51 dead transitions. [2022-12-13 17:02:36,552 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 51 transitions, 528 flow [2022-12-13 17:02:36,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 17:02:36,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 17:02:36,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2275 transitions. [2022-12-13 17:02:36,554 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4236499068901304 [2022-12-13 17:02:36,554 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2275 transitions. [2022-12-13 17:02:36,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2275 transitions. [2022-12-13 17:02:36,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:36,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2275 transitions. [2022-12-13 17:02:36,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 151.66666666666666) internal successors, (2275), 15 states have internal predecessors, (2275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:36,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 358.0) internal successors, (5728), 16 states have internal predecessors, (5728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:36,558 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 358.0) internal successors, (5728), 16 states have internal predecessors, (5728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:36,558 INFO L175 Difference]: Start difference. First operand has 92 places, 44 transitions, 447 flow. Second operand 15 states and 2275 transitions. [2022-12-13 17:02:36,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 51 transitions, 528 flow [2022-12-13 17:02:36,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 51 transitions, 429 flow, removed 8 selfloop flow, removed 18 redundant places. [2022-12-13 17:02:36,560 INFO L231 Difference]: Finished difference. Result has 84 places, 34 transitions, 273 flow [2022-12-13 17:02:36,560 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=273, PETRI_PLACES=84, PETRI_TRANSITIONS=34} [2022-12-13 17:02:36,560 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 51 predicate places. [2022-12-13 17:02:36,560 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 34 transitions, 273 flow [2022-12-13 17:02:36,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 150.15384615384616) internal successors, (1952), 13 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:36,560 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:36,561 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:36,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-13 17:02:36,561 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:36,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:36,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1491907627, now seen corresponding path program 6 times [2022-12-13 17:02:36,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:36,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796524710] [2022-12-13 17:02:36,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:36,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:37,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:37,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:37,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796524710] [2022-12-13 17:02:37,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796524710] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:37,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:37,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 17:02:37,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751387048] [2022-12-13 17:02:37,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:37,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 17:02:37,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:37,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 17:02:37,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:02:37,679 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 358 [2022-12-13 17:02:37,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 34 transitions, 273 flow. Second operand has 13 states, 13 states have (on average 150.15384615384616) internal successors, (1952), 13 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:37,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:37,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 358 [2022-12-13 17:02:37,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:37,941 INFO L130 PetriNetUnfolder]: 15/63 cut-off events. [2022-12-13 17:02:37,941 INFO L131 PetriNetUnfolder]: For 123/123 co-relation queries the response was YES. [2022-12-13 17:02:37,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 63 events. 15/63 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 149 event pairs, 2 based on Foata normal form. 4/67 useless extension candidates. Maximal degree in co-relation 277. Up to 13 conditions per place. [2022-12-13 17:02:37,942 INFO L137 encePairwiseOnDemand]: 347/358 looper letters, 14 selfloop transitions, 13 changer transitions 14/41 dead transitions. [2022-12-13 17:02:37,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 41 transitions, 346 flow [2022-12-13 17:02:37,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:02:37,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 17:02:37,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1673 transitions. [2022-12-13 17:02:37,943 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42483494159471813 [2022-12-13 17:02:37,943 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1673 transitions. [2022-12-13 17:02:37,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1673 transitions. [2022-12-13 17:02:37,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:37,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1673 transitions. [2022-12-13 17:02:37,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 152.0909090909091) internal successors, (1673), 11 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:37,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:37,946 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 358.0) internal successors, (4296), 12 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:37,946 INFO L175 Difference]: Start difference. First operand has 84 places, 34 transitions, 273 flow. Second operand 11 states and 1673 transitions. [2022-12-13 17:02:37,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 41 transitions, 346 flow [2022-12-13 17:02:37,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 41 transitions, 272 flow, removed 1 selfloop flow, removed 18 redundant places. [2022-12-13 17:02:37,947 INFO L231 Difference]: Finished difference. Result has 60 places, 23 transitions, 134 flow [2022-12-13 17:02:37,947 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=134, PETRI_PLACES=60, PETRI_TRANSITIONS=23} [2022-12-13 17:02:37,948 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 27 predicate places. [2022-12-13 17:02:37,948 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 23 transitions, 134 flow [2022-12-13 17:02:37,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 150.15384615384616) internal successors, (1952), 13 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:37,948 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:37,948 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:37,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-13 17:02:37,948 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:37,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:37,948 INFO L85 PathProgramCache]: Analyzing trace with hash 287923074, now seen corresponding path program 9 times [2022-12-13 17:02:37,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:37,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17784294] [2022-12-13 17:02:37,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:37,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:38,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:38,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:38,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17784294] [2022-12-13 17:02:38,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17784294] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:38,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:38,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:02:38,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808697689] [2022-12-13 17:02:38,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:38,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:02:38,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:38,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:02:38,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:02:38,718 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 358 [2022-12-13 17:02:38,719 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 23 transitions, 134 flow. Second operand has 10 states, 10 states have (on average 156.4) internal successors, (1564), 10 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:38,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:38,719 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 358 [2022-12-13 17:02:38,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:38,877 INFO L130 PetriNetUnfolder]: 14/60 cut-off events. [2022-12-13 17:02:38,877 INFO L131 PetriNetUnfolder]: For 75/75 co-relation queries the response was YES. [2022-12-13 17:02:38,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 60 events. 14/60 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 142 event pairs, 6 based on Foata normal form. 4/64 useless extension candidates. Maximal degree in co-relation 250. Up to 29 conditions per place. [2022-12-13 17:02:38,877 INFO L137 encePairwiseOnDemand]: 350/358 looper letters, 14 selfloop transitions, 4 changer transitions 17/36 dead transitions. [2022-12-13 17:02:38,877 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 36 transitions, 279 flow [2022-12-13 17:02:38,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:02:38,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 17:02:38,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1424 transitions. [2022-12-13 17:02:38,878 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4419615145872129 [2022-12-13 17:02:38,878 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1424 transitions. [2022-12-13 17:02:38,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1424 transitions. [2022-12-13 17:02:38,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:38,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1424 transitions. [2022-12-13 17:02:38,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 158.22222222222223) internal successors, (1424), 9 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:38,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 358.0) internal successors, (3580), 10 states have internal predecessors, (3580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:38,881 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 358.0) internal successors, (3580), 10 states have internal predecessors, (3580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:38,881 INFO L175 Difference]: Start difference. First operand has 60 places, 23 transitions, 134 flow. Second operand 9 states and 1424 transitions. [2022-12-13 17:02:38,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 36 transitions, 279 flow [2022-12-13 17:02:38,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 36 transitions, 214 flow, removed 1 selfloop flow, removed 13 redundant places. [2022-12-13 17:02:38,882 INFO L231 Difference]: Finished difference. Result has 49 places, 19 transitions, 94 flow [2022-12-13 17:02:38,882 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=94, PETRI_PLACES=49, PETRI_TRANSITIONS=19} [2022-12-13 17:02:38,882 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 16 predicate places. [2022-12-13 17:02:38,882 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 19 transitions, 94 flow [2022-12-13 17:02:38,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 156.4) internal successors, (1564), 10 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:38,882 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:02:38,882 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:02:38,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-13 17:02:38,883 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 17:02:38,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:02:38,883 INFO L85 PathProgramCache]: Analyzing trace with hash -521768206, now seen corresponding path program 10 times [2022-12-13 17:02:38,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:02:38,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277150341] [2022-12-13 17:02:38,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:02:38,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:02:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:02:39,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:02:39,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:02:39,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277150341] [2022-12-13 17:02:39,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277150341] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:02:39,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:02:39,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:02:39,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719246898] [2022-12-13 17:02:39,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:02:39,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:02:39,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:02:39,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:02:39,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:02:39,571 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 358 [2022-12-13 17:02:39,572 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 19 transitions, 94 flow. Second operand has 10 states, 10 states have (on average 156.4) internal successors, (1564), 10 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:39,572 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:02:39,572 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 358 [2022-12-13 17:02:39,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:02:39,703 INFO L130 PetriNetUnfolder]: 5/28 cut-off events. [2022-12-13 17:02:39,703 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-12-13 17:02:39,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 28 events. 5/28 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 1 based on Foata normal form. 4/32 useless extension candidates. Maximal degree in co-relation 97. Up to 15 conditions per place. [2022-12-13 17:02:39,703 INFO L137 encePairwiseOnDemand]: 350/358 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2022-12-13 17:02:39,703 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 20 transitions, 125 flow [2022-12-13 17:02:39,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:02:39,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 17:02:39,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1413 transitions. [2022-12-13 17:02:39,704 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43854748603351956 [2022-12-13 17:02:39,704 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1413 transitions. [2022-12-13 17:02:39,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1413 transitions. [2022-12-13 17:02:39,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:02:39,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1413 transitions. [2022-12-13 17:02:39,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 157.0) internal successors, (1413), 9 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:39,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 358.0) internal successors, (3580), 10 states have internal predecessors, (3580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:39,707 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 358.0) internal successors, (3580), 10 states have internal predecessors, (3580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:39,707 INFO L175 Difference]: Start difference. First operand has 49 places, 19 transitions, 94 flow. Second operand 9 states and 1413 transitions. [2022-12-13 17:02:39,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 20 transitions, 125 flow [2022-12-13 17:02:39,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 20 transitions, 104 flow, removed 3 selfloop flow, removed 8 redundant places. [2022-12-13 17:02:39,708 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2022-12-13 17:02:39,708 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=358, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2022-12-13 17:02:39,708 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2022-12-13 17:02:39,708 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2022-12-13 17:02:39,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 156.4) internal successors, (1564), 10 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:02:39,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2022-12-13 17:02:39,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2022-12-13 17:02:39,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-12-13 17:02:39,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-12-13 17:02:39,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-12-13 17:02:39,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-12-13 17:02:39,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-12-13 17:02:39,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-12-13 17:02:39,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-13 17:02:39,711 INFO L445 BasicCegarLoop]: Path program histogram: [10, 6, 6, 4, 4, 4, 2, 1, 1, 1, 1] [2022-12-13 17:02:39,714 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 17:02:39,714 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:02:39,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:02:39 BasicIcfg [2022-12-13 17:02:39,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:02:39,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:02:39,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:02:39,716 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:02:39,716 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:01:50" (3/4) ... [2022-12-13 17:02:39,718 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 17:02:39,722 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2022-12-13 17:02:39,725 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-12-13 17:02:39,725 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 17:02:39,725 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 17:02:39,726 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 17:02:39,749 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6332913-6374-41e8-bb47-e85af9aee282/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:02:39,749 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:02:39,750 INFO L158 Benchmark]: Toolchain (without parser) took 50076.71ms. Allocated memory was 121.6MB in the beginning and 308.3MB in the end (delta: 186.6MB). Free memory was 86.8MB in the beginning and 199.4MB in the end (delta: -112.6MB). Peak memory consumption was 75.9MB. Max. memory is 16.1GB. [2022-12-13 17:02:39,750 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 98.6MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:02:39,750 INFO L158 Benchmark]: CACSL2BoogieTranslator took 649.14ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 86.8MB in the beginning and 90.0MB in the end (delta: -3.2MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2022-12-13 17:02:39,750 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.23ms. Allocated memory is still 146.8MB. Free memory was 90.0MB in the beginning and 86.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 17:02:39,750 INFO L158 Benchmark]: Boogie Preprocessor took 26.58ms. Allocated memory is still 146.8MB. Free memory was 86.7MB in the beginning and 83.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:02:39,750 INFO L158 Benchmark]: RCFGBuilder took 490.01ms. Allocated memory is still 146.8MB. Free memory was 83.8MB in the beginning and 60.3MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-13 17:02:39,751 INFO L158 Benchmark]: TraceAbstraction took 48828.26ms. Allocated memory was 146.8MB in the beginning and 308.3MB in the end (delta: 161.5MB). Free memory was 111.3MB in the beginning and 202.6MB in the end (delta: -91.3MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2022-12-13 17:02:39,751 INFO L158 Benchmark]: Witness Printer took 33.17ms. Allocated memory is still 308.3MB. Free memory was 202.6MB in the beginning and 199.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 17:02:39,752 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 98.6MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 649.14ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 86.8MB in the beginning and 90.0MB in the end (delta: -3.2MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.23ms. Allocated memory is still 146.8MB. Free memory was 90.0MB in the beginning and 86.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.58ms. Allocated memory is still 146.8MB. Free memory was 86.7MB in the beginning and 83.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 490.01ms. Allocated memory is still 146.8MB. Free memory was 83.8MB in the beginning and 60.3MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 48828.26ms. Allocated memory was 146.8MB in the beginning and 308.3MB in the end (delta: 161.5MB). Free memory was 111.3MB in the beginning and 202.6MB in the end (delta: -91.3MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. * Witness Printer took 33.17ms. Allocated memory is still 308.3MB. Free memory was 202.6MB in the beginning and 199.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.0s, 165 PlacesBefore, 33 PlacesAfterwards, 162 TransitionsBefore, 27 TransitionsAfterwards, 4216 CoEnabledTransitionPairs, 7 FixpointIterations, 64 TrivialSequentialCompositions, 75 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 11 ConcurrentYvCompositions, 3 ChoiceCompositions, 162 TotalNumberOfCompositions, 8757 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4144, independent: 3886, independent conditional: 0, independent unconditional: 3886, dependent: 258, dependent conditional: 0, dependent unconditional: 258, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2374, independent: 2321, independent conditional: 0, independent unconditional: 2321, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4144, independent: 1565, independent conditional: 0, independent unconditional: 1565, dependent: 205, dependent conditional: 0, dependent unconditional: 205, unknown: 2374, unknown conditional: 0, unknown unconditional: 2374] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1712]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1712]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 208 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 48.7s, OverallIterations: 40, TraceHistogramMax: 1, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 26.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12230 SdHoareTripleChecker+Valid, 19.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9884 mSDsluCounter, 7607 SdHoareTripleChecker+Invalid, 16.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7232 mSDsCounter, 1175 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33400 IncrementalHoareTripleChecker+Invalid, 34575 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1175 mSolverCounterUnsat, 375 mSDtfsCounter, 33400 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 541 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 520 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1131 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2734occurred in iteration=14, InterpolantAutomatonStates: 416, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 13.3s InterpolantComputationTime, 486 NumberOfCodeBlocks, 486 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 446 ConstructedInterpolants, 0 QuantifiedInterpolants, 7423 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 40 InterpolantComputations, 40 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 17:02:39,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6332913-6374-41e8-bb47-e85af9aee282/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE