./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eceae23-2f84-4556-b87f-0132e5cd9a6e/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eceae23-2f84-4556-b87f-0132e5cd9a6e/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eceae23-2f84-4556-b87f-0132e5cd9a6e/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eceae23-2f84-4556-b87f-0132e5cd9a6e/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eceae23-2f84-4556-b87f-0132e5cd9a6e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eceae23-2f84-4556-b87f-0132e5cd9a6e/bin/uautomizer-ZsLfNo2U6R --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 c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 --- 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-38b53e6 [2022-11-25 16:54:13,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:54:13,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:54:13,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:54:13,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:54:13,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:54:13,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:54:13,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:54:13,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:54:13,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:54:13,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:54:13,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:54:13,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:54:13,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:54:13,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:54:13,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:54:13,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:54:13,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:54:13,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:54:13,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:54:13,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:54:13,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:54:13,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:54:13,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:54:13,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:54:13,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:54:13,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:54:13,783 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:54:13,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:54:13,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:54:13,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:54:13,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:54:13,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:54:13,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:54:13,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:54:13,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:54:13,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:54:13,793 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:54:13,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:54:13,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:54:13,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:54:13,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eceae23-2f84-4556-b87f-0132e5cd9a6e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 16:54:13,836 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:54:13,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:54:13,837 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:54:13,837 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:54:13,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:54:13,839 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:54:13,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:54:13,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:54:13,840 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:54:13,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:54:13,842 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:54:13,842 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:54:13,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:54:13,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:54:13,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:54:13,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:54:13,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:54:13,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:54:13,844 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 16:54:13,845 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:54:13,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:54:13,845 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:54:13,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:54:13,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:54:13,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:54:13,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:54:13,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:54:13,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:54:13,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:54:13,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:54:13,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:54:13,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:54:13,849 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:54:13,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:54:13,850 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:54:13,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:54:13,851 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_4eceae23-2f84-4556-b87f-0132e5cd9a6e/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eceae23-2f84-4556-b87f-0132e5cd9a6e/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2022-11-25 16:54:14,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:54:14,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:54:14,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:54:14,248 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:54:14,248 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:54:14,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eceae23-2f84-4556-b87f-0132e5cd9a6e/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-25 16:54:17,311 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:54:17,643 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:54:17,644 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eceae23-2f84-4556-b87f-0132e5cd9a6e/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-25 16:54:17,661 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eceae23-2f84-4556-b87f-0132e5cd9a6e/bin/uautomizer-ZsLfNo2U6R/data/5dfdf8175/0894b021ca4d4c0d8085d0a73290adf8/FLAG5ff90907b [2022-11-25 16:54:17,683 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eceae23-2f84-4556-b87f-0132e5cd9a6e/bin/uautomizer-ZsLfNo2U6R/data/5dfdf8175/0894b021ca4d4c0d8085d0a73290adf8 [2022-11-25 16:54:17,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:54:17,687 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:54:17,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:54:17,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:54:17,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:54:17,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:54:17" (1/1) ... [2022-11-25 16:54:17,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@785f231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:17, skipping insertion in model container [2022-11-25 16:54:17,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:54:17" (1/1) ... [2022-11-25 16:54:17,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:54:17,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:54:17,944 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 16:54:18,601 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_4eceae23-2f84-4556-b87f-0132e5cd9a6e/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-25 16:54:18,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:18,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:18,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:18,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:18,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:18,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:18,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:18,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:18,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:18,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:18,635 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:18,635 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:18,636 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:18,636 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:18,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:54:18,659 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:54:18,673 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 16:54:18,711 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_4eceae23-2f84-4556-b87f-0132e5cd9a6e/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-25 16:54:18,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:18,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:18,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:18,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:18,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:18,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:18,726 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:18,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:18,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:18,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:18,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:18,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:18,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:54:18,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:54:18,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:54:18,861 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:54:18,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:18 WrapperNode [2022-11-25 16:54:18,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:54:18,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:54:18,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:54:18,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:54:18,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:18" (1/1) ... [2022-11-25 16:54:18,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:18" (1/1) ... [2022-11-25 16:54:18,967 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-11-25 16:54:18,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:54:18,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:54:18,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:54:18,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:54:18,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:18" (1/1) ... [2022-11-25 16:54:18,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:18" (1/1) ... [2022-11-25 16:54:18,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:18" (1/1) ... [2022-11-25 16:54:18,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:18" (1/1) ... [2022-11-25 16:54:19,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:18" (1/1) ... [2022-11-25 16:54:19,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:18" (1/1) ... [2022-11-25 16:54:19,035 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:18" (1/1) ... [2022-11-25 16:54:19,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:18" (1/1) ... [2022-11-25 16:54:19,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:54:19,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:54:19,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:54:19,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:54:19,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:18" (1/1) ... [2022-11-25 16:54:19,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:54:19,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eceae23-2f84-4556-b87f-0132e5cd9a6e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:54:19,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eceae23-2f84-4556-b87f-0132e5cd9a6e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:54:19,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eceae23-2f84-4556-b87f-0132e5cd9a6e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:54:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 16:54:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:54:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 16:54:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 16:54:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 16:54:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:54:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 16:54:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:54:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:54:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-25 16:54:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-25 16:54:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 16:54:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 16:54:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:54:19,149 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 16:54:19,573 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:54:19,582 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:54:19,999 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:54:20,070 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:54:20,071 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 16:54:20,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:54:20 BoogieIcfgContainer [2022-11-25 16:54:20,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:54:20,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:54:20,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:54:20,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:54:20,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:54:17" (1/3) ... [2022-11-25 16:54:20,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7933cc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:54:20, skipping insertion in model container [2022-11-25 16:54:20,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:54:18" (2/3) ... [2022-11-25 16:54:20,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7933cc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:54:20, skipping insertion in model container [2022-11-25 16:54:20,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:54:20" (3/3) ... [2022-11-25 16:54:20,084 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2022-11-25 16:54:20,096 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 16:54:20,105 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:54:20,106 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 16:54:20,106 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 16:54:20,185 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-25 16:54:20,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 173 transitions, 362 flow [2022-11-25 16:54:20,326 INFO L130 PetriNetUnfolder]: 8/216 cut-off events. [2022-11-25 16:54:20,326 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 16:54:20,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 216 events. 8/216 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 366 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2022-11-25 16:54:20,333 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 173 transitions, 362 flow [2022-11-25 16:54:20,338 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 139 transitions, 287 flow [2022-11-25 16:54:20,349 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 16:54:20,373 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 139 transitions, 287 flow [2022-11-25 16:54:20,376 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 139 transitions, 287 flow [2022-11-25 16:54:20,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 139 transitions, 287 flow [2022-11-25 16:54:20,474 INFO L130 PetriNetUnfolder]: 2/139 cut-off events. [2022-11-25 16:54:20,475 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 16:54:20,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 139 events. 2/139 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 147 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2022-11-25 16:54:20,482 INFO L119 LiptonReduction]: Number of co-enabled transitions 3780 [2022-11-25 16:55:24,420 INFO L134 LiptonReduction]: Checked pairs total: 10044 [2022-11-25 16:55:24,421 INFO L136 LiptonReduction]: Total number of compositions: 132 [2022-11-25 16:55:24,451 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:55:24,458 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;@3968bb3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:55:24,459 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-25 16:55:24,464 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-11-25 16:55:24,465 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:55:24,465 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:24,466 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 16:55:24,466 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:24,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:24,472 INFO L85 PathProgramCache]: Analyzing trace with hash 576255560, now seen corresponding path program 1 times [2022-11-25 16:55:24,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:24,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742296705] [2022-11-25 16:55:24,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:24,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:25,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:25,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:25,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742296705] [2022-11-25 16:55:25,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742296705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:25,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:25,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:55:25,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442992976] [2022-11-25 16:55:25,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:25,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:55:25,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:25,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:55:25,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:55:25,874 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 305 [2022-11-25 16:55:25,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 63 flow. Second operand has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:25,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:25,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 305 [2022-11-25 16:55:25,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:26,145 INFO L130 PetriNetUnfolder]: 215/414 cut-off events. [2022-11-25 16:55:26,145 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-25 16:55:26,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 850 conditions, 414 events. 215/414 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1514 event pairs, 210 based on Foata normal form. 0/336 useless extension candidates. Maximal degree in co-relation 696. Up to 402 conditions per place. [2022-11-25 16:55:26,150 INFO L137 encePairwiseOnDemand]: 296/305 looper letters, 24 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2022-11-25 16:55:26,150 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 139 flow [2022-11-25 16:55:26,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:55:26,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 16:55:26,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 869 transitions. [2022-11-25 16:55:26,169 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4748633879781421 [2022-11-25 16:55:26,170 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 869 transitions. [2022-11-25 16:55:26,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 869 transitions. [2022-11-25 16:55:26,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:26,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 869 transitions. [2022-11-25 16:55:26,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 144.83333333333334) internal successors, (869), 6 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:26,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 305.0) internal successors, (2135), 7 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:26,194 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 305.0) internal successors, (2135), 7 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:26,197 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 63 flow. Second operand 6 states and 869 transitions. [2022-11-25 16:55:26,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 139 flow [2022-11-25 16:55:26,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 33 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 16:55:26,203 INFO L231 Difference]: Finished difference. Result has 38 places, 32 transitions, 105 flow [2022-11-25 16:55:26,206 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=105, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2022-11-25 16:55:26,210 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 4 predicate places. [2022-11-25 16:55:26,210 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 105 flow [2022-11-25 16:55:26,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:26,211 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:26,211 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 16:55:26,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:55:26,212 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:26,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:26,213 INFO L85 PathProgramCache]: Analyzing trace with hash 684193049, now seen corresponding path program 1 times [2022-11-25 16:55:26,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:26,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439760780] [2022-11-25 16:55:26,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:26,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:26,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:26,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:26,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439760780] [2022-11-25 16:55:26,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439760780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:26,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:26,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:55:26,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014167778] [2022-11-25 16:55:26,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:26,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:55:26,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:26,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:55:26,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:55:27,203 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 305 [2022-11-25 16:55:27,204 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 105 flow. Second operand has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:27,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:27,205 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 305 [2022-11-25 16:55:27,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:27,496 INFO L130 PetriNetUnfolder]: 236/450 cut-off events. [2022-11-25 16:55:27,497 INFO L131 PetriNetUnfolder]: For 64/64 co-relation queries the response was YES. [2022-11-25 16:55:27,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1034 conditions, 450 events. 236/450 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1709 event pairs, 70 based on Foata normal form. 5/394 useless extension candidates. Maximal degree in co-relation 833. Up to 396 conditions per place. [2022-11-25 16:55:27,505 INFO L137 encePairwiseOnDemand]: 296/305 looper letters, 34 selfloop transitions, 14 changer transitions 0/49 dead transitions. [2022-11-25 16:55:27,510 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 49 transitions, 249 flow [2022-11-25 16:55:27,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:55:27,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 16:55:27,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 875 transitions. [2022-11-25 16:55:27,515 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4781420765027322 [2022-11-25 16:55:27,515 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 875 transitions. [2022-11-25 16:55:27,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 875 transitions. [2022-11-25 16:55:27,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:27,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 875 transitions. [2022-11-25 16:55:27,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 145.83333333333334) internal successors, (875), 6 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:27,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 305.0) internal successors, (2135), 7 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:27,528 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 305.0) internal successors, (2135), 7 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:27,529 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 105 flow. Second operand 6 states and 875 transitions. [2022-11-25 16:55:27,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 49 transitions, 249 flow [2022-11-25 16:55:27,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 49 transitions, 247 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 16:55:27,534 INFO L231 Difference]: Finished difference. Result has 44 places, 39 transitions, 177 flow [2022-11-25 16:55:27,535 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=177, PETRI_PLACES=44, PETRI_TRANSITIONS=39} [2022-11-25 16:55:27,535 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 10 predicate places. [2022-11-25 16:55:27,535 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 39 transitions, 177 flow [2022-11-25 16:55:27,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:27,537 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:27,537 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 16:55:27,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:55:27,538 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:27,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:27,543 INFO L85 PathProgramCache]: Analyzing trace with hash 684106559, now seen corresponding path program 2 times [2022-11-25 16:55:27,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:27,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203315017] [2022-11-25 16:55:27,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:27,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:28,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:28,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:28,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203315017] [2022-11-25 16:55:28,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203315017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:28,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:28,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:55:28,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394132969] [2022-11-25 16:55:28,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:28,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:55:28,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:28,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:55:28,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:55:28,306 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 305 [2022-11-25 16:55:28,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 39 transitions, 177 flow. Second operand has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:28,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:28,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 305 [2022-11-25 16:55:28,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:28,582 INFO L130 PetriNetUnfolder]: 222/426 cut-off events. [2022-11-25 16:55:28,582 INFO L131 PetriNetUnfolder]: For 208/208 co-relation queries the response was YES. [2022-11-25 16:55:28,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1118 conditions, 426 events. 222/426 cut-off events. For 208/208 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1591 event pairs, 70 based on Foata normal form. 5/375 useless extension candidates. Maximal degree in co-relation 853. Up to 350 conditions per place. [2022-11-25 16:55:28,585 INFO L137 encePairwiseOnDemand]: 297/305 looper letters, 36 selfloop transitions, 15 changer transitions 0/52 dead transitions. [2022-11-25 16:55:28,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 52 transitions, 320 flow [2022-11-25 16:55:28,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:55:28,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 16:55:28,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 874 transitions. [2022-11-25 16:55:28,589 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47759562841530057 [2022-11-25 16:55:28,589 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 874 transitions. [2022-11-25 16:55:28,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 874 transitions. [2022-11-25 16:55:28,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:28,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 874 transitions. [2022-11-25 16:55:28,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 145.66666666666666) internal successors, (874), 6 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:28,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 305.0) internal successors, (2135), 7 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:28,598 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 305.0) internal successors, (2135), 7 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:28,598 INFO L175 Difference]: Start difference. First operand has 44 places, 39 transitions, 177 flow. Second operand 6 states and 874 transitions. [2022-11-25 16:55:28,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 52 transitions, 320 flow [2022-11-25 16:55:28,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 52 transitions, 304 flow, removed 7 selfloop flow, removed 1 redundant places. [2022-11-25 16:55:28,602 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 222 flow [2022-11-25 16:55:28,603 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=222, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2022-11-25 16:55:28,603 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 15 predicate places. [2022-11-25 16:55:28,604 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 222 flow [2022-11-25 16:55:28,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:28,605 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:28,605 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:28,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 16:55:28,606 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:28,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:28,606 INFO L85 PathProgramCache]: Analyzing trace with hash -267839588, now seen corresponding path program 1 times [2022-11-25 16:55:28,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:28,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602863090] [2022-11-25 16:55:28,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:28,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:29,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:29,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:29,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602863090] [2022-11-25 16:55:29,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602863090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:29,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:29,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:55:29,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144923318] [2022-11-25 16:55:29,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:29,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:55:29,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:29,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:55:29,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:55:29,365 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 305 [2022-11-25 16:55:29,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 139.16666666666666) internal successors, (835), 6 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:29,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:29,386 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 305 [2022-11-25 16:55:29,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:29,667 INFO L130 PetriNetUnfolder]: 210/406 cut-off events. [2022-11-25 16:55:29,668 INFO L131 PetriNetUnfolder]: For 268/268 co-relation queries the response was YES. [2022-11-25 16:55:29,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1110 conditions, 406 events. 210/406 cut-off events. For 268/268 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1461 event pairs, 80 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 912. Up to 356 conditions per place. [2022-11-25 16:55:29,671 INFO L137 encePairwiseOnDemand]: 297/305 looper letters, 41 selfloop transitions, 15 changer transitions 0/57 dead transitions. [2022-11-25 16:55:29,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 57 transitions, 412 flow [2022-11-25 16:55:29,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:55:29,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 16:55:29,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 872 transitions. [2022-11-25 16:55:29,675 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47650273224043715 [2022-11-25 16:55:29,675 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 872 transitions. [2022-11-25 16:55:29,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 872 transitions. [2022-11-25 16:55:29,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:29,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 872 transitions. [2022-11-25 16:55:29,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:29,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 305.0) internal successors, (2135), 7 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:29,683 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 305.0) internal successors, (2135), 7 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:29,683 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 222 flow. Second operand 6 states and 872 transitions. [2022-11-25 16:55:29,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 57 transitions, 412 flow [2022-11-25 16:55:29,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 57 transitions, 395 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-11-25 16:55:29,687 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 309 flow [2022-11-25 16:55:29,687 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=309, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2022-11-25 16:55:29,688 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 21 predicate places. [2022-11-25 16:55:29,688 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 309 flow [2022-11-25 16:55:29,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.16666666666666) internal successors, (835), 6 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:29,689 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:29,689 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:29,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 16:55:29,690 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:29,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:29,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1163707495, now seen corresponding path program 1 times [2022-11-25 16:55:29,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:29,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879485475] [2022-11-25 16:55:29,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:29,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:30,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:30,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:30,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879485475] [2022-11-25 16:55:30,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879485475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:30,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:30,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:55:30,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187312463] [2022-11-25 16:55:30,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:30,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:55:30,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:30,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:55:30,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:55:30,211 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 305 [2022-11-25 16:55:30,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 309 flow. Second operand has 5 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:30,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:30,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 305 [2022-11-25 16:55:30,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:30,464 INFO L130 PetriNetUnfolder]: 198/406 cut-off events. [2022-11-25 16:55:30,464 INFO L131 PetriNetUnfolder]: For 288/288 co-relation queries the response was YES. [2022-11-25 16:55:30,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1174 conditions, 406 events. 198/406 cut-off events. For 288/288 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1611 event pairs, 65 based on Foata normal form. 14/388 useless extension candidates. Maximal degree in co-relation 1037. Up to 197 conditions per place. [2022-11-25 16:55:30,468 INFO L137 encePairwiseOnDemand]: 299/305 looper letters, 57 selfloop transitions, 9 changer transitions 4/72 dead transitions. [2022-11-25 16:55:30,468 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 72 transitions, 536 flow [2022-11-25 16:55:30,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:55:30,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 16:55:30,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 771 transitions. [2022-11-25 16:55:30,471 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5055737704918033 [2022-11-25 16:55:30,471 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 771 transitions. [2022-11-25 16:55:30,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 771 transitions. [2022-11-25 16:55:30,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:30,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 771 transitions. [2022-11-25 16:55:30,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 154.2) internal successors, (771), 5 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:30,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:30,478 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:30,478 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 309 flow. Second operand 5 states and 771 transitions. [2022-11-25 16:55:30,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 72 transitions, 536 flow [2022-11-25 16:55:30,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 72 transitions, 517 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-11-25 16:55:30,482 INFO L231 Difference]: Finished difference. Result has 60 places, 51 transitions, 325 flow [2022-11-25 16:55:30,483 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=325, PETRI_PLACES=60, PETRI_TRANSITIONS=51} [2022-11-25 16:55:30,484 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 26 predicate places. [2022-11-25 16:55:30,484 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 51 transitions, 325 flow [2022-11-25 16:55:30,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:30,485 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:30,485 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:30,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 16:55:30,485 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:30,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:30,486 INFO L85 PathProgramCache]: Analyzing trace with hash 307073001, now seen corresponding path program 2 times [2022-11-25 16:55:30,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:30,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166851755] [2022-11-25 16:55:30,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:30,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:30,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:30,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:30,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:30,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166851755] [2022-11-25 16:55:30,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166851755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:30,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:30,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:55:30,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206198287] [2022-11-25 16:55:30,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:30,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:55:30,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:30,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:55:30,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:55:31,057 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 305 [2022-11-25 16:55:31,058 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 51 transitions, 325 flow. Second operand has 5 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:31,058 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:31,058 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 305 [2022-11-25 16:55:31,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:31,300 INFO L130 PetriNetUnfolder]: 224/482 cut-off events. [2022-11-25 16:55:31,300 INFO L131 PetriNetUnfolder]: For 429/429 co-relation queries the response was YES. [2022-11-25 16:55:31,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1432 conditions, 482 events. 224/482 cut-off events. For 429/429 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2102 event pairs, 77 based on Foata normal form. 8/452 useless extension candidates. Maximal degree in co-relation 1287. Up to 234 conditions per place. [2022-11-25 16:55:31,304 INFO L137 encePairwiseOnDemand]: 299/305 looper letters, 59 selfloop transitions, 10 changer transitions 4/75 dead transitions. [2022-11-25 16:55:31,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 75 transitions, 576 flow [2022-11-25 16:55:31,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:55:31,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 16:55:31,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 773 transitions. [2022-11-25 16:55:31,307 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5068852459016393 [2022-11-25 16:55:31,307 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 773 transitions. [2022-11-25 16:55:31,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 773 transitions. [2022-11-25 16:55:31,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:31,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 773 transitions. [2022-11-25 16:55:31,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 154.6) internal successors, (773), 5 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:31,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:31,314 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:31,314 INFO L175 Difference]: Start difference. First operand has 60 places, 51 transitions, 325 flow. Second operand 5 states and 773 transitions. [2022-11-25 16:55:31,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 75 transitions, 576 flow [2022-11-25 16:55:31,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 75 transitions, 565 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 16:55:31,319 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 352 flow [2022-11-25 16:55:31,319 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=352, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2022-11-25 16:55:31,320 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 29 predicate places. [2022-11-25 16:55:31,320 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 352 flow [2022-11-25 16:55:31,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:31,321 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:31,321 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:31,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 16:55:31,321 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:31,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:31,322 INFO L85 PathProgramCache]: Analyzing trace with hash 305285541, now seen corresponding path program 3 times [2022-11-25 16:55:31,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:31,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854754851] [2022-11-25 16:55:31,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:31,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:31,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:31,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:31,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854754851] [2022-11-25 16:55:31,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854754851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:31,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:31,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:55:31,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189787823] [2022-11-25 16:55:31,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:31,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:55:31,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:31,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:55:31,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:55:31,806 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 305 [2022-11-25 16:55:31,807 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 352 flow. Second operand has 5 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:31,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:31,808 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 305 [2022-11-25 16:55:31,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:31,984 INFO L130 PetriNetUnfolder]: 80/212 cut-off events. [2022-11-25 16:55:31,984 INFO L131 PetriNetUnfolder]: For 396/396 co-relation queries the response was YES. [2022-11-25 16:55:31,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 212 events. 80/212 cut-off events. For 396/396 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 751 event pairs, 53 based on Foata normal form. 8/210 useless extension candidates. Maximal degree in co-relation 571. Up to 147 conditions per place. [2022-11-25 16:55:31,986 INFO L137 encePairwiseOnDemand]: 300/305 looper letters, 43 selfloop transitions, 8 changer transitions 2/55 dead transitions. [2022-11-25 16:55:31,987 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 55 transitions, 475 flow [2022-11-25 16:55:31,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:55:31,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 16:55:31,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 760 transitions. [2022-11-25 16:55:31,989 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49836065573770494 [2022-11-25 16:55:31,990 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 760 transitions. [2022-11-25 16:55:31,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 760 transitions. [2022-11-25 16:55:31,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:31,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 760 transitions. [2022-11-25 16:55:31,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 152.0) internal successors, (760), 5 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:31,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:31,996 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:31,996 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 352 flow. Second operand 5 states and 760 transitions. [2022-11-25 16:55:31,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 55 transitions, 475 flow [2022-11-25 16:55:31,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 55 transitions, 449 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-11-25 16:55:32,000 INFO L231 Difference]: Finished difference. Result has 65 places, 46 transitions, 329 flow [2022-11-25 16:55:32,000 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=329, PETRI_PLACES=65, PETRI_TRANSITIONS=46} [2022-11-25 16:55:32,001 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 31 predicate places. [2022-11-25 16:55:32,001 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 46 transitions, 329 flow [2022-11-25 16:55:32,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:32,002 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:32,002 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:32,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 16:55:32,002 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:32,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:32,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1027439110, now seen corresponding path program 1 times [2022-11-25 16:55:32,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:32,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505290439] [2022-11-25 16:55:32,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:32,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:33,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:33,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:33,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505290439] [2022-11-25 16:55:33,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505290439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:33,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:33,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 16:55:33,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600937154] [2022-11-25 16:55:33,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:33,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 16:55:33,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:33,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 16:55:33,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:55:33,934 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 305 [2022-11-25 16:55:33,936 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 46 transitions, 329 flow. Second operand has 11 states, 11 states have (on average 134.0909090909091) internal successors, (1475), 11 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) [2022-11-25 16:55:33,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:33,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 305 [2022-11-25 16:55:33,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:34,768 INFO L130 PetriNetUnfolder]: 102/283 cut-off events. [2022-11-25 16:55:34,768 INFO L131 PetriNetUnfolder]: For 497/497 co-relation queries the response was YES. [2022-11-25 16:55:34,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 895 conditions, 283 events. 102/283 cut-off events. For 497/497 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1184 event pairs, 31 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 734. Up to 121 conditions per place. [2022-11-25 16:55:34,771 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 63 selfloop transitions, 22 changer transitions 3/89 dead transitions. [2022-11-25 16:55:34,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 89 transitions, 661 flow [2022-11-25 16:55:34,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:55:34,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 16:55:34,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1670 transitions. [2022-11-25 16:55:34,777 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4562841530054645 [2022-11-25 16:55:34,777 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1670 transitions. [2022-11-25 16:55:34,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1670 transitions. [2022-11-25 16:55:34,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:34,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1670 transitions. [2022-11-25 16:55:34,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 139.16666666666666) internal successors, (1670), 12 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:34,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:34,791 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:34,791 INFO L175 Difference]: Start difference. First operand has 65 places, 46 transitions, 329 flow. Second operand 12 states and 1670 transitions. [2022-11-25 16:55:34,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 89 transitions, 661 flow [2022-11-25 16:55:34,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 89 transitions, 650 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-11-25 16:55:34,796 INFO L231 Difference]: Finished difference. Result has 78 places, 58 transitions, 461 flow [2022-11-25 16:55:34,797 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=461, PETRI_PLACES=78, PETRI_TRANSITIONS=58} [2022-11-25 16:55:34,797 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 44 predicate places. [2022-11-25 16:55:34,797 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 58 transitions, 461 flow [2022-11-25 16:55:34,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 134.0909090909091) internal successors, (1475), 11 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) [2022-11-25 16:55:34,799 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:34,799 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:34,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 16:55:34,799 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:34,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:34,800 INFO L85 PathProgramCache]: Analyzing trace with hash 322317422, now seen corresponding path program 2 times [2022-11-25 16:55:34,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:34,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840913416] [2022-11-25 16:55:34,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:34,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:35,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:35,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:35,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840913416] [2022-11-25 16:55:35,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840913416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:35,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:35,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 16:55:35,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479853237] [2022-11-25 16:55:35,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:35,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 16:55:35,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:35,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 16:55:35,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:55:36,129 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 305 [2022-11-25 16:55:36,130 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 58 transitions, 461 flow. Second operand has 10 states, 10 states have (on average 136.2) internal successors, (1362), 10 states have internal predecessors, (1362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:36,130 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:36,131 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 305 [2022-11-25 16:55:36,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:37,005 INFO L130 PetriNetUnfolder]: 132/369 cut-off events. [2022-11-25 16:55:37,005 INFO L131 PetriNetUnfolder]: For 860/860 co-relation queries the response was YES. [2022-11-25 16:55:37,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1254 conditions, 369 events. 132/369 cut-off events. For 860/860 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1752 event pairs, 63 based on Foata normal form. 3/370 useless extension candidates. Maximal degree in co-relation 956. Up to 187 conditions per place. [2022-11-25 16:55:37,009 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 71 selfloop transitions, 23 changer transitions 3/98 dead transitions. [2022-11-25 16:55:37,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 98 transitions, 803 flow [2022-11-25 16:55:37,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:55:37,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 16:55:37,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1693 transitions. [2022-11-25 16:55:37,014 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46256830601092896 [2022-11-25 16:55:37,014 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1693 transitions. [2022-11-25 16:55:37,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1693 transitions. [2022-11-25 16:55:37,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:37,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1693 transitions. [2022-11-25 16:55:37,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 141.08333333333334) internal successors, (1693), 12 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:37,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:37,027 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:37,027 INFO L175 Difference]: Start difference. First operand has 78 places, 58 transitions, 461 flow. Second operand 12 states and 1693 transitions. [2022-11-25 16:55:37,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 98 transitions, 803 flow [2022-11-25 16:55:37,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 98 transitions, 786 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-11-25 16:55:37,034 INFO L231 Difference]: Finished difference. Result has 92 places, 67 transitions, 587 flow [2022-11-25 16:55:37,034 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=587, PETRI_PLACES=92, PETRI_TRANSITIONS=67} [2022-11-25 16:55:37,035 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 58 predicate places. [2022-11-25 16:55:37,035 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 67 transitions, 587 flow [2022-11-25 16:55:37,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.2) internal successors, (1362), 10 states have internal predecessors, (1362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:37,036 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:37,037 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:37,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 16:55:37,037 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:37,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:37,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1565294687, now seen corresponding path program 1 times [2022-11-25 16:55:37,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:37,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737998510] [2022-11-25 16:55:37,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:37,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:38,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:38,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:38,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737998510] [2022-11-25 16:55:38,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737998510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:38,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:38,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 16:55:38,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631714827] [2022-11-25 16:55:38,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:38,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 16:55:38,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:38,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 16:55:38,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:55:38,665 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 305 [2022-11-25 16:55:38,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 67 transitions, 587 flow. Second operand has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:38,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:38,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 305 [2022-11-25 16:55:38,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:39,538 INFO L130 PetriNetUnfolder]: 127/371 cut-off events. [2022-11-25 16:55:39,538 INFO L131 PetriNetUnfolder]: For 1225/1225 co-relation queries the response was YES. [2022-11-25 16:55:39,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1363 conditions, 371 events. 127/371 cut-off events. For 1225/1225 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1810 event pairs, 47 based on Foata normal form. 3/374 useless extension candidates. Maximal degree in co-relation 1166. Up to 197 conditions per place. [2022-11-25 16:55:39,542 INFO L137 encePairwiseOnDemand]: 291/305 looper letters, 65 selfloop transitions, 30 changer transitions 4/100 dead transitions. [2022-11-25 16:55:39,542 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 100 transitions, 874 flow [2022-11-25 16:55:39,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 16:55:39,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-25 16:55:39,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2240 transitions. [2022-11-25 16:55:39,548 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45901639344262296 [2022-11-25 16:55:39,548 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2240 transitions. [2022-11-25 16:55:39,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2240 transitions. [2022-11-25 16:55:39,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:39,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2240 transitions. [2022-11-25 16:55:39,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 140.0) internal successors, (2240), 16 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:39,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 305.0) internal successors, (5185), 17 states have internal predecessors, (5185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:39,564 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 305.0) internal successors, (5185), 17 states have internal predecessors, (5185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:39,565 INFO L175 Difference]: Start difference. First operand has 92 places, 67 transitions, 587 flow. Second operand 16 states and 2240 transitions. [2022-11-25 16:55:39,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 100 transitions, 874 flow [2022-11-25 16:55:39,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 100 transitions, 833 flow, removed 9 selfloop flow, removed 4 redundant places. [2022-11-25 16:55:39,572 INFO L231 Difference]: Finished difference. Result has 105 places, 71 transitions, 630 flow [2022-11-25 16:55:39,572 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=630, PETRI_PLACES=105, PETRI_TRANSITIONS=71} [2022-11-25 16:55:39,573 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 71 predicate places. [2022-11-25 16:55:39,573 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 71 transitions, 630 flow [2022-11-25 16:55:39,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:39,574 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:39,574 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:39,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 16:55:39,575 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:39,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:39,575 INFO L85 PathProgramCache]: Analyzing trace with hash -438689532, now seen corresponding path program 1 times [2022-11-25 16:55:39,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:39,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504058925] [2022-11-25 16:55:39,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:39,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:40,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:40,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:40,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504058925] [2022-11-25 16:55:40,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504058925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:40,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:40,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 16:55:40,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413331909] [2022-11-25 16:55:40,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:40,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 16:55:40,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:40,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 16:55:40,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:55:41,444 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 305 [2022-11-25 16:55:41,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 71 transitions, 630 flow. Second operand has 11 states, 11 states have (on average 134.0909090909091) internal successors, (1475), 11 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) [2022-11-25 16:55:41,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:41,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 305 [2022-11-25 16:55:41,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:42,048 INFO L130 PetriNetUnfolder]: 126/371 cut-off events. [2022-11-25 16:55:42,048 INFO L131 PetriNetUnfolder]: For 1342/1342 co-relation queries the response was YES. [2022-11-25 16:55:42,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1471 conditions, 371 events. 126/371 cut-off events. For 1342/1342 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1807 event pairs, 77 based on Foata normal form. 2/373 useless extension candidates. Maximal degree in co-relation 1295. Up to 307 conditions per place. [2022-11-25 16:55:42,053 INFO L137 encePairwiseOnDemand]: 296/305 looper letters, 60 selfloop transitions, 14 changer transitions 2/77 dead transitions. [2022-11-25 16:55:42,053 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 77 transitions, 794 flow [2022-11-25 16:55:42,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 16:55:42,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-25 16:55:42,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1237 transitions. [2022-11-25 16:55:42,057 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4506375227686703 [2022-11-25 16:55:42,058 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1237 transitions. [2022-11-25 16:55:42,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1237 transitions. [2022-11-25 16:55:42,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:42,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1237 transitions. [2022-11-25 16:55:42,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 137.44444444444446) internal successors, (1237), 9 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:42,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 305.0) internal successors, (3050), 10 states have internal predecessors, (3050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:42,076 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 305.0) internal successors, (3050), 10 states have internal predecessors, (3050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:42,076 INFO L175 Difference]: Start difference. First operand has 105 places, 71 transitions, 630 flow. Second operand 9 states and 1237 transitions. [2022-11-25 16:55:42,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 77 transitions, 794 flow [2022-11-25 16:55:42,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 77 transitions, 713 flow, removed 11 selfloop flow, removed 14 redundant places. [2022-11-25 16:55:42,084 INFO L231 Difference]: Finished difference. Result has 98 places, 70 transitions, 573 flow [2022-11-25 16:55:42,084 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=545, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=573, PETRI_PLACES=98, PETRI_TRANSITIONS=70} [2022-11-25 16:55:42,085 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 64 predicate places. [2022-11-25 16:55:42,085 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 70 transitions, 573 flow [2022-11-25 16:55:42,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 134.0909090909091) internal successors, (1475), 11 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) [2022-11-25 16:55:42,086 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:42,086 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:42,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 16:55:42,086 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:42,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:42,087 INFO L85 PathProgramCache]: Analyzing trace with hash -353499486, now seen corresponding path program 3 times [2022-11-25 16:55:42,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:42,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592426780] [2022-11-25 16:55:42,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:42,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:42,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:42,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:42,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592426780] [2022-11-25 16:55:42,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592426780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:42,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:42,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 16:55:42,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664837528] [2022-11-25 16:55:42,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:42,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 16:55:42,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:42,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 16:55:42,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:55:43,567 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 305 [2022-11-25 16:55:43,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 70 transitions, 573 flow. Second operand has 10 states, 10 states have (on average 136.2) internal successors, (1362), 10 states have internal predecessors, (1362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:43,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:43,569 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 305 [2022-11-25 16:55:43,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:44,320 INFO L130 PetriNetUnfolder]: 152/438 cut-off events. [2022-11-25 16:55:44,320 INFO L131 PetriNetUnfolder]: For 1337/1337 co-relation queries the response was YES. [2022-11-25 16:55:44,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1728 conditions, 438 events. 152/438 cut-off events. For 1337/1337 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2270 event pairs, 36 based on Foata normal form. 3/441 useless extension candidates. Maximal degree in co-relation 1396. Up to 203 conditions per place. [2022-11-25 16:55:44,325 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 81 selfloop transitions, 43 changer transitions 1/126 dead transitions. [2022-11-25 16:55:44,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 126 transitions, 1141 flow [2022-11-25 16:55:44,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:55:44,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 16:55:44,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1698 transitions. [2022-11-25 16:55:44,331 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4639344262295082 [2022-11-25 16:55:44,331 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1698 transitions. [2022-11-25 16:55:44,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1698 transitions. [2022-11-25 16:55:44,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:44,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1698 transitions. [2022-11-25 16:55:44,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 141.5) internal successors, (1698), 12 states have internal predecessors, (1698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:44,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:44,344 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:44,344 INFO L175 Difference]: Start difference. First operand has 98 places, 70 transitions, 573 flow. Second operand 12 states and 1698 transitions. [2022-11-25 16:55:44,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 126 transitions, 1141 flow [2022-11-25 16:55:44,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 126 transitions, 1100 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-25 16:55:44,353 INFO L231 Difference]: Finished difference. Result has 105 places, 90 transitions, 853 flow [2022-11-25 16:55:44,354 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=535, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=853, PETRI_PLACES=105, PETRI_TRANSITIONS=90} [2022-11-25 16:55:44,354 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 71 predicate places. [2022-11-25 16:55:44,354 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 90 transitions, 853 flow [2022-11-25 16:55:44,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.2) internal successors, (1362), 10 states have internal predecessors, (1362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:44,355 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:44,356 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:44,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 16:55:44,356 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:44,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:44,356 INFO L85 PathProgramCache]: Analyzing trace with hash -438689531, now seen corresponding path program 1 times [2022-11-25 16:55:44,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:44,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621300547] [2022-11-25 16:55:44,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:44,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:45,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:45,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:45,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621300547] [2022-11-25 16:55:45,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621300547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:45,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:45,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 16:55:45,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401181639] [2022-11-25 16:55:45,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:45,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 16:55:45,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:45,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 16:55:45,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:55:45,961 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 305 [2022-11-25 16:55:45,963 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 90 transitions, 853 flow. Second operand has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:45,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:45,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 305 [2022-11-25 16:55:45,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:46,545 INFO L130 PetriNetUnfolder]: 151/438 cut-off events. [2022-11-25 16:55:46,545 INFO L131 PetriNetUnfolder]: For 1831/1831 co-relation queries the response was YES. [2022-11-25 16:55:46,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1903 conditions, 438 events. 151/438 cut-off events. For 1831/1831 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2245 event pairs, 73 based on Foata normal form. 2/440 useless extension candidates. Maximal degree in co-relation 1621. Up to 342 conditions per place. [2022-11-25 16:55:46,550 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 67 selfloop transitions, 26 changer transitions 12/106 dead transitions. [2022-11-25 16:55:46,550 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 106 transitions, 1152 flow [2022-11-25 16:55:46,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 16:55:46,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-25 16:55:46,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1807 transitions. [2022-11-25 16:55:46,554 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4557377049180328 [2022-11-25 16:55:46,555 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1807 transitions. [2022-11-25 16:55:46,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1807 transitions. [2022-11-25 16:55:46,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:46,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1807 transitions. [2022-11-25 16:55:46,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 139.0) internal successors, (1807), 13 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:46,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:46,566 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:46,566 INFO L175 Difference]: Start difference. First operand has 105 places, 90 transitions, 853 flow. Second operand 13 states and 1807 transitions. [2022-11-25 16:55:46,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 106 transitions, 1152 flow [2022-11-25 16:55:46,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 106 transitions, 1118 flow, removed 13 selfloop flow, removed 3 redundant places. [2022-11-25 16:55:46,577 INFO L231 Difference]: Finished difference. Result has 113 places, 85 transitions, 869 flow [2022-11-25 16:55:46,577 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=869, PETRI_PLACES=113, PETRI_TRANSITIONS=85} [2022-11-25 16:55:46,578 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 79 predicate places. [2022-11-25 16:55:46,578 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 85 transitions, 869 flow [2022-11-25 16:55:46,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:46,579 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:46,579 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:46,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 16:55:46,579 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:46,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:46,580 INFO L85 PathProgramCache]: Analyzing trace with hash -353499485, now seen corresponding path program 2 times [2022-11-25 16:55:46,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:46,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192225580] [2022-11-25 16:55:46,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:46,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:47,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:47,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:47,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192225580] [2022-11-25 16:55:47,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192225580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:47,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:47,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 16:55:47,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183889426] [2022-11-25 16:55:47,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:47,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 16:55:47,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:47,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 16:55:47,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:55:48,332 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 305 [2022-11-25 16:55:48,333 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 85 transitions, 869 flow. Second operand has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:48,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:48,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 305 [2022-11-25 16:55:48,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:49,404 INFO L130 PetriNetUnfolder]: 148/418 cut-off events. [2022-11-25 16:55:49,404 INFO L131 PetriNetUnfolder]: For 1961/1961 co-relation queries the response was YES. [2022-11-25 16:55:49,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1867 conditions, 418 events. 148/418 cut-off events. For 1961/1961 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2094 event pairs, 34 based on Foata normal form. 9/427 useless extension candidates. Maximal degree in co-relation 1511. Up to 147 conditions per place. [2022-11-25 16:55:49,409 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 59 selfloop transitions, 61 changer transitions 0/121 dead transitions. [2022-11-25 16:55:49,409 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 121 transitions, 1290 flow [2022-11-25 16:55:49,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 16:55:49,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-25 16:55:49,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2644 transitions. [2022-11-25 16:55:49,418 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4562553925798102 [2022-11-25 16:55:49,418 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2644 transitions. [2022-11-25 16:55:49,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2644 transitions. [2022-11-25 16:55:49,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:49,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2644 transitions. [2022-11-25 16:55:49,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 139.1578947368421) internal successors, (2644), 19 states have internal predecessors, (2644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:49,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 305.0) internal successors, (6100), 20 states have internal predecessors, (6100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:49,443 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 305.0) internal successors, (6100), 20 states have internal predecessors, (6100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:49,443 INFO L175 Difference]: Start difference. First operand has 113 places, 85 transitions, 869 flow. Second operand 19 states and 2644 transitions. [2022-11-25 16:55:49,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 121 transitions, 1290 flow [2022-11-25 16:55:49,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 121 transitions, 1153 flow, removed 18 selfloop flow, removed 12 redundant places. [2022-11-25 16:55:49,458 INFO L231 Difference]: Finished difference. Result has 108 places, 92 transitions, 977 flow [2022-11-25 16:55:49,458 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=711, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=977, PETRI_PLACES=108, PETRI_TRANSITIONS=92} [2022-11-25 16:55:49,459 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 74 predicate places. [2022-11-25 16:55:49,459 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 92 transitions, 977 flow [2022-11-25 16:55:49,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:49,460 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:49,460 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:49,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 16:55:49,461 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:49,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:49,461 INFO L85 PathProgramCache]: Analyzing trace with hash -900462246, now seen corresponding path program 4 times [2022-11-25 16:55:49,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:49,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720223695] [2022-11-25 16:55:49,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:49,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:50,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:50,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:50,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720223695] [2022-11-25 16:55:50,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720223695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:50,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:50,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 16:55:50,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458208707] [2022-11-25 16:55:50,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:50,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 16:55:50,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:50,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 16:55:50,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:55:51,159 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 305 [2022-11-25 16:55:51,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 92 transitions, 977 flow. Second operand has 11 states, 11 states have (on average 134.0909090909091) internal successors, (1475), 11 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) [2022-11-25 16:55:51,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:51,161 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 305 [2022-11-25 16:55:51,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:51,724 INFO L130 PetriNetUnfolder]: 156/439 cut-off events. [2022-11-25 16:55:51,724 INFO L131 PetriNetUnfolder]: For 2031/2031 co-relation queries the response was YES. [2022-11-25 16:55:51,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1992 conditions, 439 events. 156/439 cut-off events. For 2031/2031 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2243 event pairs, 27 based on Foata normal form. 6/445 useless extension candidates. Maximal degree in co-relation 1667. Up to 164 conditions per place. [2022-11-25 16:55:51,730 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 69 selfloop transitions, 50 changer transitions 0/120 dead transitions. [2022-11-25 16:55:51,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 120 transitions, 1372 flow [2022-11-25 16:55:51,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 16:55:51,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-25 16:55:51,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1518 transitions. [2022-11-25 16:55:51,733 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4524590163934426 [2022-11-25 16:55:51,733 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1518 transitions. [2022-11-25 16:55:51,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1518 transitions. [2022-11-25 16:55:51,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:51,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1518 transitions. [2022-11-25 16:55:51,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 138.0) internal successors, (1518), 11 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:51,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:51,742 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:51,742 INFO L175 Difference]: Start difference. First operand has 108 places, 92 transitions, 977 flow. Second operand 11 states and 1518 transitions. [2022-11-25 16:55:51,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 120 transitions, 1372 flow [2022-11-25 16:55:51,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 120 transitions, 1240 flow, removed 31 selfloop flow, removed 12 redundant places. [2022-11-25 16:55:51,753 INFO L231 Difference]: Finished difference. Result has 110 places, 99 transitions, 1111 flow [2022-11-25 16:55:51,754 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1111, PETRI_PLACES=110, PETRI_TRANSITIONS=99} [2022-11-25 16:55:51,754 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 76 predicate places. [2022-11-25 16:55:51,754 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 99 transitions, 1111 flow [2022-11-25 16:55:51,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 134.0909090909091) internal successors, (1475), 11 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) [2022-11-25 16:55:51,755 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:51,756 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:51,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 16:55:51,756 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:51,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:51,756 INFO L85 PathProgramCache]: Analyzing trace with hash -900462245, now seen corresponding path program 3 times [2022-11-25 16:55:51,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:51,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000198097] [2022-11-25 16:55:51,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:51,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:52,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:52,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:52,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000198097] [2022-11-25 16:55:52,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000198097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:52,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:52,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 16:55:52,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589438606] [2022-11-25 16:55:52,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:52,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 16:55:52,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:52,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 16:55:52,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:55:53,181 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 305 [2022-11-25 16:55:53,183 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 99 transitions, 1111 flow. Second operand has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:53,183 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:53,183 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 305 [2022-11-25 16:55:53,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:53,863 INFO L130 PetriNetUnfolder]: 150/427 cut-off events. [2022-11-25 16:55:53,863 INFO L131 PetriNetUnfolder]: For 1961/1961 co-relation queries the response was YES. [2022-11-25 16:55:53,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1954 conditions, 427 events. 150/427 cut-off events. For 1961/1961 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2174 event pairs, 20 based on Foata normal form. 6/433 useless extension candidates. Maximal degree in co-relation 1775. Up to 168 conditions per place. [2022-11-25 16:55:53,867 INFO L137 encePairwiseOnDemand]: 292/305 looper letters, 43 selfloop transitions, 66 changer transitions 0/110 dead transitions. [2022-11-25 16:55:53,867 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 110 transitions, 1331 flow [2022-11-25 16:55:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 16:55:53,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 16:55:53,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1943 transitions. [2022-11-25 16:55:53,870 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4550351288056206 [2022-11-25 16:55:53,871 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1943 transitions. [2022-11-25 16:55:53,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1943 transitions. [2022-11-25 16:55:53,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:53,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1943 transitions. [2022-11-25 16:55:53,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 138.78571428571428) internal successors, (1943), 14 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:53,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:53,882 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:53,882 INFO L175 Difference]: Start difference. First operand has 110 places, 99 transitions, 1111 flow. Second operand 14 states and 1943 transitions. [2022-11-25 16:55:53,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 110 transitions, 1331 flow [2022-11-25 16:55:53,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 110 transitions, 1222 flow, removed 17 selfloop flow, removed 10 redundant places. [2022-11-25 16:55:53,895 INFO L231 Difference]: Finished difference. Result has 112 places, 95 transitions, 1090 flow [2022-11-25 16:55:53,895 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=958, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1090, PETRI_PLACES=112, PETRI_TRANSITIONS=95} [2022-11-25 16:55:53,896 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 78 predicate places. [2022-11-25 16:55:53,896 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 95 transitions, 1090 flow [2022-11-25 16:55:53,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:53,897 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:53,897 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:53,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 16:55:53,898 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:53,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:53,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1844383004, now seen corresponding path program 5 times [2022-11-25 16:55:53,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:53,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216179664] [2022-11-25 16:55:53,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:53,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:54,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:54,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:54,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216179664] [2022-11-25 16:55:54,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216179664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:54,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:54,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 16:55:54,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010292959] [2022-11-25 16:55:54,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:54,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 16:55:54,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:54,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 16:55:54,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 16:55:54,936 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 305 [2022-11-25 16:55:54,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 95 transitions, 1090 flow. Second operand has 8 states, 8 states have (on average 144.5) internal successors, (1156), 8 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:54,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:54,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 305 [2022-11-25 16:55:54,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:55,371 INFO L130 PetriNetUnfolder]: 138/409 cut-off events. [2022-11-25 16:55:55,372 INFO L131 PetriNetUnfolder]: For 1677/1678 co-relation queries the response was YES. [2022-11-25 16:55:55,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 409 events. 138/409 cut-off events. For 1677/1678 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2108 event pairs, 35 based on Foata normal form. 4/413 useless extension candidates. Maximal degree in co-relation 1638. Up to 177 conditions per place. [2022-11-25 16:55:55,376 INFO L137 encePairwiseOnDemand]: 297/305 looper letters, 68 selfloop transitions, 42 changer transitions 0/115 dead transitions. [2022-11-25 16:55:55,377 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 115 transitions, 1363 flow [2022-11-25 16:55:55,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 16:55:55,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-25 16:55:55,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1342 transitions. [2022-11-25 16:55:55,380 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4888888888888889 [2022-11-25 16:55:55,380 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1342 transitions. [2022-11-25 16:55:55,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1342 transitions. [2022-11-25 16:55:55,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:55,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1342 transitions. [2022-11-25 16:55:55,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 149.11111111111111) internal successors, (1342), 9 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:55,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 305.0) internal successors, (3050), 10 states have internal predecessors, (3050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:55,388 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 305.0) internal successors, (3050), 10 states have internal predecessors, (3050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:55,388 INFO L175 Difference]: Start difference. First operand has 112 places, 95 transitions, 1090 flow. Second operand 9 states and 1342 transitions. [2022-11-25 16:55:55,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 115 transitions, 1363 flow [2022-11-25 16:55:55,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 115 transitions, 1228 flow, removed 2 selfloop flow, removed 14 redundant places. [2022-11-25 16:55:55,398 INFO L231 Difference]: Finished difference. Result has 106 places, 93 transitions, 1018 flow [2022-11-25 16:55:55,399 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=934, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1018, PETRI_PLACES=106, PETRI_TRANSITIONS=93} [2022-11-25 16:55:55,399 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 72 predicate places. [2022-11-25 16:55:55,399 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 93 transitions, 1018 flow [2022-11-25 16:55:55,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 144.5) internal successors, (1156), 8 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:55,400 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:55,400 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:55,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 16:55:55,401 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:55,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:55,401 INFO L85 PathProgramCache]: Analyzing trace with hash -895875039, now seen corresponding path program 4 times [2022-11-25 16:55:55,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:55,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193188664] [2022-11-25 16:55:55,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:55,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:56,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:56,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:56,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193188664] [2022-11-25 16:55:56,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193188664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:56,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:56,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 16:55:56,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340879636] [2022-11-25 16:55:56,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:56,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 16:55:56,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:56,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 16:55:56,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:55:56,809 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 305 [2022-11-25 16:55:56,810 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 93 transitions, 1018 flow. Second operand has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:56,810 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:56,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 305 [2022-11-25 16:55:56,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:57,424 INFO L130 PetriNetUnfolder]: 145/410 cut-off events. [2022-11-25 16:55:57,424 INFO L131 PetriNetUnfolder]: For 1683/1683 co-relation queries the response was YES. [2022-11-25 16:55:57,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1821 conditions, 410 events. 145/410 cut-off events. For 1683/1683 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2057 event pairs, 15 based on Foata normal form. 3/413 useless extension candidates. Maximal degree in co-relation 1484. Up to 137 conditions per place. [2022-11-25 16:55:57,429 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 34 selfloop transitions, 69 changer transitions 0/104 dead transitions. [2022-11-25 16:55:57,429 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 104 transitions, 1274 flow [2022-11-25 16:55:57,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 16:55:57,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 16:55:57,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1935 transitions. [2022-11-25 16:55:57,432 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4531615925058548 [2022-11-25 16:55:57,433 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1935 transitions. [2022-11-25 16:55:57,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1935 transitions. [2022-11-25 16:55:57,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:57,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1935 transitions. [2022-11-25 16:55:57,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 138.21428571428572) internal successors, (1935), 14 states have internal predecessors, (1935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:57,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:57,442 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:57,442 INFO L175 Difference]: Start difference. First operand has 106 places, 93 transitions, 1018 flow. Second operand 14 states and 1935 transitions. [2022-11-25 16:55:57,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 104 transitions, 1274 flow [2022-11-25 16:55:57,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 104 transitions, 1243 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-25 16:55:57,452 INFO L231 Difference]: Finished difference. Result has 118 places, 95 transitions, 1231 flow [2022-11-25 16:55:57,453 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=977, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1231, PETRI_PLACES=118, PETRI_TRANSITIONS=95} [2022-11-25 16:55:57,453 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 84 predicate places. [2022-11-25 16:55:57,454 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 95 transitions, 1231 flow [2022-11-25 16:55:57,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:57,454 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:57,454 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:57,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 16:55:57,455 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:57,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:57,455 INFO L85 PathProgramCache]: Analyzing trace with hash -895875040, now seen corresponding path program 6 times [2022-11-25 16:55:57,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:57,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048119788] [2022-11-25 16:55:57,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:57,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:58,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:58,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:58,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048119788] [2022-11-25 16:55:58,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048119788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:58,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:58,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 16:55:58,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159633636] [2022-11-25 16:55:58,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:58,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 16:55:58,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:58,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 16:55:58,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:55:58,873 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 305 [2022-11-25 16:55:58,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 95 transitions, 1231 flow. Second operand has 11 states, 11 states have (on average 134.0909090909091) internal successors, (1475), 11 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) [2022-11-25 16:55:58,875 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:58,875 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 305 [2022-11-25 16:55:58,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:59,435 INFO L130 PetriNetUnfolder]: 142/403 cut-off events. [2022-11-25 16:55:59,435 INFO L131 PetriNetUnfolder]: For 2386/2386 co-relation queries the response was YES. [2022-11-25 16:55:59,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1989 conditions, 403 events. 142/403 cut-off events. For 2386/2386 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2010 event pairs, 21 based on Foata normal form. 3/406 useless extension candidates. Maximal degree in co-relation 1617. Up to 129 conditions per place. [2022-11-25 16:55:59,440 INFO L137 encePairwiseOnDemand]: 295/305 looper letters, 57 selfloop transitions, 50 changer transitions 0/108 dead transitions. [2022-11-25 16:55:59,440 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 108 transitions, 1472 flow [2022-11-25 16:55:59,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 16:55:59,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-25 16:55:59,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1508 transitions. [2022-11-25 16:55:59,443 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.449478390461997 [2022-11-25 16:55:59,443 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1508 transitions. [2022-11-25 16:55:59,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1508 transitions. [2022-11-25 16:55:59,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:59,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1508 transitions. [2022-11-25 16:55:59,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 137.0909090909091) internal successors, (1508), 11 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:59,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:59,450 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:59,451 INFO L175 Difference]: Start difference. First operand has 118 places, 95 transitions, 1231 flow. Second operand 11 states and 1508 transitions. [2022-11-25 16:55:59,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 108 transitions, 1472 flow [2022-11-25 16:55:59,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 108 transitions, 1339 flow, removed 6 selfloop flow, removed 12 redundant places. [2022-11-25 16:55:59,463 INFO L231 Difference]: Finished difference. Result has 116 places, 93 transitions, 1176 flow [2022-11-25 16:55:59,463 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=1076, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1176, PETRI_PLACES=116, PETRI_TRANSITIONS=93} [2022-11-25 16:55:59,464 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 82 predicate places. [2022-11-25 16:55:59,464 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 93 transitions, 1176 flow [2022-11-25 16:55:59,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 134.0909090909091) internal successors, (1475), 11 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) [2022-11-25 16:55:59,465 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:59,465 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:55:59,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 16:55:59,465 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:55:59,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:59,466 INFO L85 PathProgramCache]: Analyzing trace with hash -2047515498, now seen corresponding path program 1 times [2022-11-25 16:55:59,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:59,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285642409] [2022-11-25 16:55:59,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:59,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:00,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:00,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:00,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285642409] [2022-11-25 16:56:00,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285642409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:00,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:00,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:56:00,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930844482] [2022-11-25 16:56:00,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:00,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:56:00,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:00,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:56:00,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:56:02,006 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-25 16:56:02,007 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 93 transitions, 1176 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:02,007 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:02,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-25 16:56:02,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:02,875 INFO L130 PetriNetUnfolder]: 165/476 cut-off events. [2022-11-25 16:56:02,875 INFO L131 PetriNetUnfolder]: For 2691/2691 co-relation queries the response was YES. [2022-11-25 16:56:02,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2325 conditions, 476 events. 165/476 cut-off events. For 2691/2691 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2546 event pairs, 56 based on Foata normal form. 5/481 useless extension candidates. Maximal degree in co-relation 2032. Up to 299 conditions per place. [2022-11-25 16:56:02,880 INFO L137 encePairwiseOnDemand]: 295/305 looper letters, 92 selfloop transitions, 45 changer transitions 0/138 dead transitions. [2022-11-25 16:56:02,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 138 transitions, 1946 flow [2022-11-25 16:56:02,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 16:56:02,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-25 16:56:02,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1430 transitions. [2022-11-25 16:56:02,883 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4262295081967213 [2022-11-25 16:56:02,883 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1430 transitions. [2022-11-25 16:56:02,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1430 transitions. [2022-11-25 16:56:02,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:02,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1430 transitions. [2022-11-25 16:56:02,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 130.0) internal successors, (1430), 11 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:02,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:02,890 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:02,890 INFO L175 Difference]: Start difference. First operand has 116 places, 93 transitions, 1176 flow. Second operand 11 states and 1430 transitions. [2022-11-25 16:56:02,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 138 transitions, 1946 flow [2022-11-25 16:56:02,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 138 transitions, 1703 flow, removed 10 selfloop flow, removed 11 redundant places. [2022-11-25 16:56:02,902 INFO L231 Difference]: Finished difference. Result has 120 places, 112 transitions, 1417 flow [2022-11-25 16:56:02,903 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=1013, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1417, PETRI_PLACES=120, PETRI_TRANSITIONS=112} [2022-11-25 16:56:02,903 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 86 predicate places. [2022-11-25 16:56:02,903 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 112 transitions, 1417 flow [2022-11-25 16:56:02,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:02,904 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:02,904 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:02,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 16:56:02,905 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:56:02,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:02,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1450606721, now seen corresponding path program 1 times [2022-11-25 16:56:02,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:02,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390578829] [2022-11-25 16:56:02,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:02,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:04,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:04,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:04,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390578829] [2022-11-25 16:56:04,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390578829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:04,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:04,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:56:04,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855210980] [2022-11-25 16:56:04,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:04,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:56:04,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:04,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:56:04,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:56:05,389 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-25 16:56:05,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 112 transitions, 1417 flow. Second operand has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 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) [2022-11-25 16:56:05,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:05,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-25 16:56:05,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:06,359 INFO L130 PetriNetUnfolder]: 179/514 cut-off events. [2022-11-25 16:56:06,360 INFO L131 PetriNetUnfolder]: For 2578/2578 co-relation queries the response was YES. [2022-11-25 16:56:06,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2589 conditions, 514 events. 179/514 cut-off events. For 2578/2578 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2873 event pairs, 46 based on Foata normal form. 2/516 useless extension candidates. Maximal degree in co-relation 2319. Up to 205 conditions per place. [2022-11-25 16:56:06,365 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 91 selfloop transitions, 60 changer transitions 0/152 dead transitions. [2022-11-25 16:56:06,366 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 152 transitions, 2027 flow [2022-11-25 16:56:06,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:56:06,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-25 16:56:06,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1975 transitions. [2022-11-25 16:56:06,369 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43169398907103823 [2022-11-25 16:56:06,369 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1975 transitions. [2022-11-25 16:56:06,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1975 transitions. [2022-11-25 16:56:06,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:06,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1975 transitions. [2022-11-25 16:56:06,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 131.66666666666666) internal successors, (1975), 15 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:06,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:06,378 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:06,378 INFO L175 Difference]: Start difference. First operand has 120 places, 112 transitions, 1417 flow. Second operand 15 states and 1975 transitions. [2022-11-25 16:56:06,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 152 transitions, 2027 flow [2022-11-25 16:56:06,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 152 transitions, 1982 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-25 16:56:06,416 INFO L231 Difference]: Finished difference. Result has 134 places, 122 transitions, 1645 flow [2022-11-25 16:56:06,417 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=1376, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1645, PETRI_PLACES=134, PETRI_TRANSITIONS=122} [2022-11-25 16:56:06,417 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 100 predicate places. [2022-11-25 16:56:06,417 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 122 transitions, 1645 flow [2022-11-25 16:56:06,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 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) [2022-11-25 16:56:06,418 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:06,418 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:06,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 16:56:06,418 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:56:06,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:06,419 INFO L85 PathProgramCache]: Analyzing trace with hash 2004230773, now seen corresponding path program 2 times [2022-11-25 16:56:06,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:06,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555825917] [2022-11-25 16:56:06,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:06,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:07,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:07,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:07,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555825917] [2022-11-25 16:56:07,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555825917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:07,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:07,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:56:07,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874962509] [2022-11-25 16:56:07,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:07,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:56:07,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:07,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:56:07,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:56:08,650 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-25 16:56:08,651 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 122 transitions, 1645 flow. Second operand has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 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) [2022-11-25 16:56:08,651 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:08,651 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-25 16:56:08,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:09,494 INFO L130 PetriNetUnfolder]: 196/579 cut-off events. [2022-11-25 16:56:09,495 INFO L131 PetriNetUnfolder]: For 3558/3558 co-relation queries the response was YES. [2022-11-25 16:56:09,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3111 conditions, 579 events. 196/579 cut-off events. For 3558/3558 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3392 event pairs, 94 based on Foata normal form. 1/580 useless extension candidates. Maximal degree in co-relation 2830. Up to 459 conditions per place. [2022-11-25 16:56:09,501 INFO L137 encePairwiseOnDemand]: 292/305 looper letters, 119 selfloop transitions, 40 changer transitions 0/160 dead transitions. [2022-11-25 16:56:09,502 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 160 transitions, 2284 flow [2022-11-25 16:56:09,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 16:56:09,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 16:56:09,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1835 transitions. [2022-11-25 16:56:09,505 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4297423887587822 [2022-11-25 16:56:09,505 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1835 transitions. [2022-11-25 16:56:09,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1835 transitions. [2022-11-25 16:56:09,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:09,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1835 transitions. [2022-11-25 16:56:09,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 131.07142857142858) internal successors, (1835), 14 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:09,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:09,514 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:09,514 INFO L175 Difference]: Start difference. First operand has 134 places, 122 transitions, 1645 flow. Second operand 14 states and 1835 transitions. [2022-11-25 16:56:09,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 160 transitions, 2284 flow [2022-11-25 16:56:09,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 160 transitions, 2147 flow, removed 7 selfloop flow, removed 9 redundant places. [2022-11-25 16:56:09,535 INFO L231 Difference]: Finished difference. Result has 144 places, 142 transitions, 1865 flow [2022-11-25 16:56:09,535 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=1529, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1865, PETRI_PLACES=144, PETRI_TRANSITIONS=142} [2022-11-25 16:56:09,536 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 110 predicate places. [2022-11-25 16:56:09,536 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 142 transitions, 1865 flow [2022-11-25 16:56:09,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 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) [2022-11-25 16:56:09,537 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:09,537 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:09,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 16:56:09,537 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:56:09,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:09,538 INFO L85 PathProgramCache]: Analyzing trace with hash -934495838, now seen corresponding path program 2 times [2022-11-25 16:56:09,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:09,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086827121] [2022-11-25 16:56:09,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:09,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:10,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:10,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:10,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086827121] [2022-11-25 16:56:10,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086827121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:10,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:10,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:56:10,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619854256] [2022-11-25 16:56:10,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:10,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:56:10,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:10,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:56:10,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:56:11,944 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-25 16:56:11,946 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 142 transitions, 1865 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:11,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:11,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-25 16:56:11,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:12,747 INFO L130 PetriNetUnfolder]: 211/625 cut-off events. [2022-11-25 16:56:12,748 INFO L131 PetriNetUnfolder]: For 4109/4109 co-relation queries the response was YES. [2022-11-25 16:56:12,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3406 conditions, 625 events. 211/625 cut-off events. For 4109/4109 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3740 event pairs, 92 based on Foata normal form. 5/630 useless extension candidates. Maximal degree in co-relation 3110. Up to 491 conditions per place. [2022-11-25 16:56:12,754 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 139 selfloop transitions, 28 changer transitions 0/168 dead transitions. [2022-11-25 16:56:12,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 168 transitions, 2397 flow [2022-11-25 16:56:12,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 16:56:12,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-25 16:56:12,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1429 transitions. [2022-11-25 16:56:12,757 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42593144560357676 [2022-11-25 16:56:12,757 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1429 transitions. [2022-11-25 16:56:12,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1429 transitions. [2022-11-25 16:56:12,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:12,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1429 transitions. [2022-11-25 16:56:12,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 129.9090909090909) internal successors, (1429), 11 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:12,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:12,763 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:12,763 INFO L175 Difference]: Start difference. First operand has 144 places, 142 transitions, 1865 flow. Second operand 11 states and 1429 transitions. [2022-11-25 16:56:12,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 168 transitions, 2397 flow [2022-11-25 16:56:12,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 168 transitions, 2358 flow, removed 15 selfloop flow, removed 2 redundant places. [2022-11-25 16:56:12,788 INFO L231 Difference]: Finished difference. Result has 157 places, 150 transitions, 2018 flow [2022-11-25 16:56:12,788 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=1828, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2018, PETRI_PLACES=157, PETRI_TRANSITIONS=150} [2022-11-25 16:56:12,789 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 123 predicate places. [2022-11-25 16:56:12,789 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 150 transitions, 2018 flow [2022-11-25 16:56:12,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:12,790 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:12,790 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:12,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 16:56:12,790 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:56:12,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:12,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1542660912, now seen corresponding path program 3 times [2022-11-25 16:56:12,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:12,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555267621] [2022-11-25 16:56:12,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:12,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:13,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:13,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:13,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555267621] [2022-11-25 16:56:13,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555267621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:13,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:13,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:56:13,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444318570] [2022-11-25 16:56:13,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:13,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:56:13,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:13,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:56:13,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:56:15,257 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-25 16:56:15,266 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 150 transitions, 2018 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:15,266 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:15,267 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-25 16:56:15,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:16,353 INFO L130 PetriNetUnfolder]: 218/650 cut-off events. [2022-11-25 16:56:16,353 INFO L131 PetriNetUnfolder]: For 5039/5039 co-relation queries the response was YES. [2022-11-25 16:56:16,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3653 conditions, 650 events. 218/650 cut-off events. For 5039/5039 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3993 event pairs, 71 based on Foata normal form. 5/655 useless extension candidates. Maximal degree in co-relation 3450. Up to 282 conditions per place. [2022-11-25 16:56:16,361 INFO L137 encePairwiseOnDemand]: 295/305 looper letters, 143 selfloop transitions, 57 changer transitions 0/201 dead transitions. [2022-11-25 16:56:16,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 201 transitions, 2814 flow [2022-11-25 16:56:16,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:56:16,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-25 16:56:16,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1958 transitions. [2022-11-25 16:56:16,365 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42797814207650275 [2022-11-25 16:56:16,365 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1958 transitions. [2022-11-25 16:56:16,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1958 transitions. [2022-11-25 16:56:16,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:16,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1958 transitions. [2022-11-25 16:56:16,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 130.53333333333333) internal successors, (1958), 15 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:16,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:16,374 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:16,374 INFO L175 Difference]: Start difference. First operand has 157 places, 150 transitions, 2018 flow. Second operand 15 states and 1958 transitions. [2022-11-25 16:56:16,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 201 transitions, 2814 flow [2022-11-25 16:56:16,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 201 transitions, 2757 flow, removed 14 selfloop flow, removed 5 redundant places. [2022-11-25 16:56:16,402 INFO L231 Difference]: Finished difference. Result has 169 places, 150 transitions, 2109 flow [2022-11-25 16:56:16,403 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=1937, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2109, PETRI_PLACES=169, PETRI_TRANSITIONS=150} [2022-11-25 16:56:16,403 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 135 predicate places. [2022-11-25 16:56:16,404 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 150 transitions, 2109 flow [2022-11-25 16:56:16,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:16,404 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:16,405 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:16,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 16:56:16,405 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:56:16,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:16,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1207590358, now seen corresponding path program 4 times [2022-11-25 16:56:16,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:16,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138257931] [2022-11-25 16:56:16,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:16,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:17,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:17,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:17,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138257931] [2022-11-25 16:56:17,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138257931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:17,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:17,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:56:17,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276658914] [2022-11-25 16:56:17,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:17,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:56:17,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:17,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:56:17,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:56:18,897 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-25 16:56:18,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 150 transitions, 2109 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:18,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:18,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-25 16:56:18,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:20,029 INFO L130 PetriNetUnfolder]: 237/706 cut-off events. [2022-11-25 16:56:20,029 INFO L131 PetriNetUnfolder]: For 6001/6001 co-relation queries the response was YES. [2022-11-25 16:56:20,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4046 conditions, 706 events. 237/706 cut-off events. For 6001/6001 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4456 event pairs, 84 based on Foata normal form. 5/711 useless extension candidates. Maximal degree in co-relation 3758. Up to 360 conditions per place. [2022-11-25 16:56:20,036 INFO L137 encePairwiseOnDemand]: 295/305 looper letters, 132 selfloop transitions, 63 changer transitions 0/196 dead transitions. [2022-11-25 16:56:20,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 196 transitions, 2850 flow [2022-11-25 16:56:20,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:56:20,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-25 16:56:20,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1947 transitions. [2022-11-25 16:56:20,039 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4255737704918033 [2022-11-25 16:56:20,040 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1947 transitions. [2022-11-25 16:56:20,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1947 transitions. [2022-11-25 16:56:20,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:20,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1947 transitions. [2022-11-25 16:56:20,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 129.8) internal successors, (1947), 15 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:20,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:20,049 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:20,050 INFO L175 Difference]: Start difference. First operand has 169 places, 150 transitions, 2109 flow. Second operand 15 states and 1947 transitions. [2022-11-25 16:56:20,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 196 transitions, 2850 flow [2022-11-25 16:56:20,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 196 transitions, 2732 flow, removed 8 selfloop flow, removed 8 redundant places. [2022-11-25 16:56:20,079 INFO L231 Difference]: Finished difference. Result has 180 places, 156 transitions, 2238 flow [2022-11-25 16:56:20,079 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=1993, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2238, PETRI_PLACES=180, PETRI_TRANSITIONS=156} [2022-11-25 16:56:20,081 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 146 predicate places. [2022-11-25 16:56:20,081 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 156 transitions, 2238 flow [2022-11-25 16:56:20,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:20,082 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:20,082 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:20,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-25 16:56:20,083 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:56:20,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:20,083 INFO L85 PathProgramCache]: Analyzing trace with hash 160405728, now seen corresponding path program 5 times [2022-11-25 16:56:20,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:20,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459102858] [2022-11-25 16:56:20,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:20,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:21,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:21,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:21,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459102858] [2022-11-25 16:56:21,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459102858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:21,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:21,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:56:21,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981725166] [2022-11-25 16:56:21,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:21,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:56:21,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:21,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:56:21,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:56:22,360 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-25 16:56:22,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 156 transitions, 2238 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:22,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:22,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-25 16:56:22,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:23,428 INFO L130 PetriNetUnfolder]: 248/742 cut-off events. [2022-11-25 16:56:23,429 INFO L131 PetriNetUnfolder]: For 6835/6835 co-relation queries the response was YES. [2022-11-25 16:56:23,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4349 conditions, 742 events. 248/742 cut-off events. For 6835/6835 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4752 event pairs, 102 based on Foata normal form. 5/747 useless extension candidates. Maximal degree in co-relation 4051. Up to 360 conditions per place. [2022-11-25 16:56:23,436 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 120 selfloop transitions, 68 changer transitions 0/189 dead transitions. [2022-11-25 16:56:23,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 189 transitions, 2842 flow [2022-11-25 16:56:23,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 16:56:23,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 16:56:23,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1819 transitions. [2022-11-25 16:56:23,438 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42599531615925057 [2022-11-25 16:56:23,438 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1819 transitions. [2022-11-25 16:56:23,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1819 transitions. [2022-11-25 16:56:23,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:23,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1819 transitions. [2022-11-25 16:56:23,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 129.92857142857142) internal successors, (1819), 14 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:23,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:23,444 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:23,444 INFO L175 Difference]: Start difference. First operand has 180 places, 156 transitions, 2238 flow. Second operand 14 states and 1819 transitions. [2022-11-25 16:56:23,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 189 transitions, 2842 flow [2022-11-25 16:56:23,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 189 transitions, 2721 flow, removed 21 selfloop flow, removed 6 redundant places. [2022-11-25 16:56:23,477 INFO L231 Difference]: Finished difference. Result has 190 places, 160 transitions, 2352 flow [2022-11-25 16:56:23,478 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=2133, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2352, PETRI_PLACES=190, PETRI_TRANSITIONS=160} [2022-11-25 16:56:23,478 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 156 predicate places. [2022-11-25 16:56:23,478 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 160 transitions, 2352 flow [2022-11-25 16:56:23,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:23,479 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:23,479 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:23,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-25 16:56:23,479 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:56:23,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:23,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1443047702, now seen corresponding path program 6 times [2022-11-25 16:56:23,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:23,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287030634] [2022-11-25 16:56:23,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:23,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:24,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:24,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:24,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287030634] [2022-11-25 16:56:24,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287030634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:24,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:24,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:56:24,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905734908] [2022-11-25 16:56:24,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:24,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:56:24,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:24,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:56:24,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:56:25,234 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-25 16:56:25,235 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 160 transitions, 2352 flow. Second operand has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 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) [2022-11-25 16:56:25,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:25,236 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-25 16:56:25,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:26,148 INFO L130 PetriNetUnfolder]: 263/791 cut-off events. [2022-11-25 16:56:26,148 INFO L131 PetriNetUnfolder]: For 7599/7599 co-relation queries the response was YES. [2022-11-25 16:56:26,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4677 conditions, 791 events. 263/791 cut-off events. For 7599/7599 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5229 event pairs, 64 based on Foata normal form. 9/800 useless extension candidates. Maximal degree in co-relation 4371. Up to 421 conditions per place. [2022-11-25 16:56:26,156 INFO L137 encePairwiseOnDemand]: 290/305 looper letters, 134 selfloop transitions, 76 changer transitions 0/211 dead transitions. [2022-11-25 16:56:26,156 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 211 transitions, 3201 flow [2022-11-25 16:56:26,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:56:26,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-25 16:56:26,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1979 transitions. [2022-11-25 16:56:26,161 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43256830601092894 [2022-11-25 16:56:26,161 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1979 transitions. [2022-11-25 16:56:26,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1979 transitions. [2022-11-25 16:56:26,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:26,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1979 transitions. [2022-11-25 16:56:26,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 131.93333333333334) internal successors, (1979), 15 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:26,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:26,170 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:26,170 INFO L175 Difference]: Start difference. First operand has 190 places, 160 transitions, 2352 flow. Second operand 15 states and 1979 transitions. [2022-11-25 16:56:26,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 211 transitions, 3201 flow [2022-11-25 16:56:26,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 211 transitions, 3016 flow, removed 6 selfloop flow, removed 9 redundant places. [2022-11-25 16:56:26,204 INFO L231 Difference]: Finished difference. Result has 203 places, 175 transitions, 2603 flow [2022-11-25 16:56:26,204 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=2179, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2603, PETRI_PLACES=203, PETRI_TRANSITIONS=175} [2022-11-25 16:56:26,204 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 169 predicate places. [2022-11-25 16:56:26,205 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 175 transitions, 2603 flow [2022-11-25 16:56:26,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 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) [2022-11-25 16:56:26,205 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:26,205 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:26,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-25 16:56:26,206 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:56:26,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:26,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1026550027, now seen corresponding path program 3 times [2022-11-25 16:56:26,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:26,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388263280] [2022-11-25 16:56:26,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:26,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:27,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:27,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:27,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388263280] [2022-11-25 16:56:27,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388263280] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:27,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:27,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:56:27,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929554923] [2022-11-25 16:56:27,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:27,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:56:27,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:27,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:56:27,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:56:28,295 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-25 16:56:28,297 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 175 transitions, 2603 flow. Second operand has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 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) [2022-11-25 16:56:28,297 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:28,297 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-25 16:56:28,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:29,313 INFO L130 PetriNetUnfolder]: 262/794 cut-off events. [2022-11-25 16:56:29,313 INFO L131 PetriNetUnfolder]: For 8321/8321 co-relation queries the response was YES. [2022-11-25 16:56:29,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5018 conditions, 794 events. 262/794 cut-off events. For 8321/8321 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5197 event pairs, 131 based on Foata normal form. 1/795 useless extension candidates. Maximal degree in co-relation 4701. Up to 609 conditions per place. [2022-11-25 16:56:29,322 INFO L137 encePairwiseOnDemand]: 292/305 looper letters, 146 selfloop transitions, 48 changer transitions 0/195 dead transitions. [2022-11-25 16:56:29,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 195 transitions, 3156 flow [2022-11-25 16:56:29,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:56:29,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-25 16:56:29,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1967 transitions. [2022-11-25 16:56:29,326 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4299453551912568 [2022-11-25 16:56:29,326 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1967 transitions. [2022-11-25 16:56:29,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1967 transitions. [2022-11-25 16:56:29,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:29,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1967 transitions. [2022-11-25 16:56:29,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 131.13333333333333) internal successors, (1967), 15 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:29,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:29,334 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:29,334 INFO L175 Difference]: Start difference. First operand has 203 places, 175 transitions, 2603 flow. Second operand 15 states and 1967 transitions. [2022-11-25 16:56:29,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 195 transitions, 3156 flow [2022-11-25 16:56:29,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 195 transitions, 3057 flow, removed 27 selfloop flow, removed 4 redundant places. [2022-11-25 16:56:29,375 INFO L231 Difference]: Finished difference. Result has 215 places, 178 transitions, 2662 flow [2022-11-25 16:56:29,375 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=2504, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2662, PETRI_PLACES=215, PETRI_TRANSITIONS=178} [2022-11-25 16:56:29,376 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 181 predicate places. [2022-11-25 16:56:29,376 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 178 transitions, 2662 flow [2022-11-25 16:56:29,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 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) [2022-11-25 16:56:29,376 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:29,377 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:29,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-25 16:56:29,377 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:56:29,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:29,377 INFO L85 PathProgramCache]: Analyzing trace with hash 560273379, now seen corresponding path program 4 times [2022-11-25 16:56:29,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:29,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069205340] [2022-11-25 16:56:29,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:29,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:30,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:30,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:30,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069205340] [2022-11-25 16:56:30,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069205340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:30,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:30,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 16:56:30,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705884276] [2022-11-25 16:56:30,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:30,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 16:56:30,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:30,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 16:56:30,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:56:31,499 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 305 [2022-11-25 16:56:31,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 178 transitions, 2662 flow. Second operand has 12 states, 12 states have (on average 129.25) internal successors, (1551), 12 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:31,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:31,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 305 [2022-11-25 16:56:31,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:32,436 INFO L130 PetriNetUnfolder]: 320/973 cut-off events. [2022-11-25 16:56:32,436 INFO L131 PetriNetUnfolder]: For 10402/10402 co-relation queries the response was YES. [2022-11-25 16:56:32,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6174 conditions, 973 events. 320/973 cut-off events. For 10402/10402 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 6764 event pairs, 170 based on Foata normal form. 1/974 useless extension candidates. Maximal degree in co-relation 5830. Up to 723 conditions per place. [2022-11-25 16:56:32,443 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 206 selfloop transitions, 29 changer transitions 0/236 dead transitions. [2022-11-25 16:56:32,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 236 transitions, 3834 flow [2022-11-25 16:56:32,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 16:56:32,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-25 16:56:32,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1732 transitions. [2022-11-25 16:56:32,446 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4368221941992434 [2022-11-25 16:56:32,446 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1732 transitions. [2022-11-25 16:56:32,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1732 transitions. [2022-11-25 16:56:32,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:32,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1732 transitions. [2022-11-25 16:56:32,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 133.23076923076923) internal successors, (1732), 13 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:32,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:32,453 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:32,453 INFO L175 Difference]: Start difference. First operand has 215 places, 178 transitions, 2662 flow. Second operand 13 states and 1732 transitions. [2022-11-25 16:56:32,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 236 transitions, 3834 flow [2022-11-25 16:56:32,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 236 transitions, 3743 flow, removed 11 selfloop flow, removed 11 redundant places. [2022-11-25 16:56:32,503 INFO L231 Difference]: Finished difference. Result has 224 places, 198 transitions, 3018 flow [2022-11-25 16:56:32,504 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=2576, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3018, PETRI_PLACES=224, PETRI_TRANSITIONS=198} [2022-11-25 16:56:32,504 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 190 predicate places. [2022-11-25 16:56:32,505 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 198 transitions, 3018 flow [2022-11-25 16:56:32,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 129.25) internal successors, (1551), 12 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:32,505 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:32,505 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:32,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-25 16:56:32,506 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:56:32,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:32,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1242988766, now seen corresponding path program 7 times [2022-11-25 16:56:32,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:32,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355915976] [2022-11-25 16:56:32,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:32,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:33,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:33,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:33,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355915976] [2022-11-25 16:56:33,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355915976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:33,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:33,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 16:56:33,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344402337] [2022-11-25 16:56:33,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:33,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 16:56:33,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:33,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 16:56:33,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:56:34,531 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 305 [2022-11-25 16:56:34,532 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 198 transitions, 3018 flow. Second operand has 12 states, 12 states have (on average 127.25) internal successors, (1527), 12 states have internal predecessors, (1527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:34,532 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:34,532 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 305 [2022-11-25 16:56:34,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:35,619 INFO L130 PetriNetUnfolder]: 327/989 cut-off events. [2022-11-25 16:56:35,620 INFO L131 PetriNetUnfolder]: For 12018/12018 co-relation queries the response was YES. [2022-11-25 16:56:35,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6457 conditions, 989 events. 327/989 cut-off events. For 12018/12018 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 6945 event pairs, 138 based on Foata normal form. 5/994 useless extension candidates. Maximal degree in co-relation 6157. Up to 632 conditions per place. [2022-11-25 16:56:35,633 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 212 selfloop transitions, 39 changer transitions 0/252 dead transitions. [2022-11-25 16:56:35,633 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 252 transitions, 3998 flow [2022-11-25 16:56:35,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:56:35,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-25 16:56:35,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1976 transitions. [2022-11-25 16:56:35,637 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43191256830601094 [2022-11-25 16:56:35,637 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1976 transitions. [2022-11-25 16:56:35,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1976 transitions. [2022-11-25 16:56:35,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:35,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1976 transitions. [2022-11-25 16:56:35,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 131.73333333333332) internal successors, (1976), 15 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:35,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:35,643 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:35,643 INFO L175 Difference]: Start difference. First operand has 224 places, 198 transitions, 3018 flow. Second operand 15 states and 1976 transitions. [2022-11-25 16:56:35,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 252 transitions, 3998 flow [2022-11-25 16:56:35,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 252 transitions, 3905 flow, removed 44 selfloop flow, removed 2 redundant places. [2022-11-25 16:56:35,704 INFO L231 Difference]: Finished difference. Result has 238 places, 202 transitions, 3139 flow [2022-11-25 16:56:35,705 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=2910, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3139, PETRI_PLACES=238, PETRI_TRANSITIONS=202} [2022-11-25 16:56:35,705 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 204 predicate places. [2022-11-25 16:56:35,705 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 202 transitions, 3139 flow [2022-11-25 16:56:35,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.25) internal successors, (1527), 12 states have internal predecessors, (1527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:35,706 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:35,706 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:35,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-25 16:56:35,706 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:56:35,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:35,706 INFO L85 PathProgramCache]: Analyzing trace with hash -42279287, now seen corresponding path program 5 times [2022-11-25 16:56:35,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:35,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122208123] [2022-11-25 16:56:35,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:35,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:36,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:36,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:36,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122208123] [2022-11-25 16:56:36,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122208123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:36,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:36,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 16:56:36,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123385819] [2022-11-25 16:56:36,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:36,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 16:56:36,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:36,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 16:56:36,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-11-25 16:56:38,210 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-25 16:56:38,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 202 transitions, 3139 flow. Second operand has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:38,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:38,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-25 16:56:38,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:39,554 INFO L130 PetriNetUnfolder]: 343/1036 cut-off events. [2022-11-25 16:56:39,554 INFO L131 PetriNetUnfolder]: For 13368/13368 co-relation queries the response was YES. [2022-11-25 16:56:39,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6832 conditions, 1036 events. 343/1036 cut-off events. For 13368/13368 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 7330 event pairs, 179 based on Foata normal form. 1/1037 useless extension candidates. Maximal degree in co-relation 6419. Up to 803 conditions per place. [2022-11-25 16:56:39,569 INFO L137 encePairwiseOnDemand]: 291/305 looper letters, 151 selfloop transitions, 91 changer transitions 0/243 dead transitions. [2022-11-25 16:56:39,569 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 243 transitions, 4048 flow [2022-11-25 16:56:39,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 16:56:39,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-25 16:56:39,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2067 transitions. [2022-11-25 16:56:39,572 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4235655737704918 [2022-11-25 16:56:39,573 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2067 transitions. [2022-11-25 16:56:39,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2067 transitions. [2022-11-25 16:56:39,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:39,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2067 transitions. [2022-11-25 16:56:39,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 129.1875) internal successors, (2067), 16 states have internal predecessors, (2067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:39,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 305.0) internal successors, (5185), 17 states have internal predecessors, (5185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:39,581 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 305.0) internal successors, (5185), 17 states have internal predecessors, (5185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:39,581 INFO L175 Difference]: Start difference. First operand has 238 places, 202 transitions, 3139 flow. Second operand 16 states and 2067 transitions. [2022-11-25 16:56:39,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 243 transitions, 4048 flow [2022-11-25 16:56:39,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 243 transitions, 3986 flow, removed 9 selfloop flow, removed 9 redundant places. [2022-11-25 16:56:39,649 INFO L231 Difference]: Finished difference. Result has 249 places, 229 transitions, 3696 flow [2022-11-25 16:56:39,650 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=3077, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3696, PETRI_PLACES=249, PETRI_TRANSITIONS=229} [2022-11-25 16:56:39,650 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 215 predicate places. [2022-11-25 16:56:39,650 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 229 transitions, 3696 flow [2022-11-25 16:56:39,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:39,651 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:39,651 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:39,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-25 16:56:39,652 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:56:39,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:39,652 INFO L85 PathProgramCache]: Analyzing trace with hash 280600852, now seen corresponding path program 8 times [2022-11-25 16:56:39,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:39,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071201511] [2022-11-25 16:56:39,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:39,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:40,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:40,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:40,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071201511] [2022-11-25 16:56:40,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071201511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:40,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:40,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 16:56:40,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894463122] [2022-11-25 16:56:40,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:40,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 16:56:40,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:40,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 16:56:40,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:56:41,370 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 305 [2022-11-25 16:56:41,371 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 229 transitions, 3696 flow. Second operand has 11 states, 11 states have (on average 136.36363636363637) internal successors, (1500), 11 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:41,371 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:41,371 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 305 [2022-11-25 16:56:41,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:42,278 INFO L130 PetriNetUnfolder]: 320/1038 cut-off events. [2022-11-25 16:56:42,278 INFO L131 PetriNetUnfolder]: For 14260/14262 co-relation queries the response was YES. [2022-11-25 16:56:42,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6924 conditions, 1038 events. 320/1038 cut-off events. For 14260/14262 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 7797 event pairs, 77 based on Foata normal form. 11/1047 useless extension candidates. Maximal degree in co-relation 6659. Up to 309 conditions per place. [2022-11-25 16:56:42,289 INFO L137 encePairwiseOnDemand]: 295/305 looper letters, 161 selfloop transitions, 113 changer transitions 0/281 dead transitions. [2022-11-25 16:56:42,289 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 281 transitions, 4805 flow [2022-11-25 16:56:42,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 16:56:42,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-25 16:56:42,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1830 transitions. [2022-11-25 16:56:42,298 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2022-11-25 16:56:42,299 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1830 transitions. [2022-11-25 16:56:42,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1830 transitions. [2022-11-25 16:56:42,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:42,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1830 transitions. [2022-11-25 16:56:42,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 140.76923076923077) internal successors, (1830), 13 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:42,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:42,306 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:42,306 INFO L175 Difference]: Start difference. First operand has 249 places, 229 transitions, 3696 flow. Second operand 13 states and 1830 transitions. [2022-11-25 16:56:42,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 281 transitions, 4805 flow [2022-11-25 16:56:42,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 281 transitions, 4688 flow, removed 42 selfloop flow, removed 4 redundant places. [2022-11-25 16:56:42,394 INFO L231 Difference]: Finished difference. Result has 262 places, 248 transitions, 4358 flow [2022-11-25 16:56:42,394 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=3546, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4358, PETRI_PLACES=262, PETRI_TRANSITIONS=248} [2022-11-25 16:56:42,395 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 228 predicate places. [2022-11-25 16:56:42,395 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 248 transitions, 4358 flow [2022-11-25 16:56:42,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 136.36363636363637) internal successors, (1500), 11 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:42,395 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:42,396 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:42,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-25 16:56:42,396 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:56:42,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:42,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1863493361, now seen corresponding path program 6 times [2022-11-25 16:56:42,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:42,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658852558] [2022-11-25 16:56:42,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:42,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:43,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:43,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:43,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658852558] [2022-11-25 16:56:43,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658852558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:43,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:43,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:56:43,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930725855] [2022-11-25 16:56:43,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:43,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:56:43,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:43,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:56:43,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:56:44,748 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-25 16:56:44,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 248 transitions, 4358 flow. Second operand has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 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) [2022-11-25 16:56:44,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:44,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-25 16:56:44,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:46,180 INFO L130 PetriNetUnfolder]: 363/1103 cut-off events. [2022-11-25 16:56:46,180 INFO L131 PetriNetUnfolder]: For 18763/18763 co-relation queries the response was YES. [2022-11-25 16:56:46,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7940 conditions, 1103 events. 363/1103 cut-off events. For 18763/18763 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 8009 event pairs, 162 based on Foata normal form. 1/1104 useless extension candidates. Maximal degree in co-relation 7624. Up to 634 conditions per place. [2022-11-25 16:56:46,191 INFO L137 encePairwiseOnDemand]: 292/305 looper letters, 156 selfloop transitions, 115 changer transitions 0/272 dead transitions. [2022-11-25 16:56:46,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 272 transitions, 5138 flow [2022-11-25 16:56:46,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 16:56:46,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-25 16:56:46,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2747 transitions. [2022-11-25 16:56:46,208 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42888368462138954 [2022-11-25 16:56:46,208 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2747 transitions. [2022-11-25 16:56:46,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2747 transitions. [2022-11-25 16:56:46,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:46,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2747 transitions. [2022-11-25 16:56:46,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 130.8095238095238) internal successors, (2747), 21 states have internal predecessors, (2747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:46,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 305.0) internal successors, (6710), 22 states have internal predecessors, (6710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:46,223 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 305.0) internal successors, (6710), 22 states have internal predecessors, (6710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:46,223 INFO L175 Difference]: Start difference. First operand has 262 places, 248 transitions, 4358 flow. Second operand 21 states and 2747 transitions. [2022-11-25 16:56:46,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 272 transitions, 5138 flow [2022-11-25 16:56:46,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 272 transitions, 5009 flow, removed 45 selfloop flow, removed 6 redundant places. [2022-11-25 16:56:46,321 INFO L231 Difference]: Finished difference. Result has 278 places, 253 transitions, 4659 flow [2022-11-25 16:56:46,322 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4264, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4659, PETRI_PLACES=278, PETRI_TRANSITIONS=253} [2022-11-25 16:56:46,322 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 244 predicate places. [2022-11-25 16:56:46,322 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 253 transitions, 4659 flow [2022-11-25 16:56:46,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 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) [2022-11-25 16:56:46,323 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:46,323 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:46,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-25 16:56:46,323 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:56:46,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:46,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1912176582, now seen corresponding path program 9 times [2022-11-25 16:56:46,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:46,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663334259] [2022-11-25 16:56:46,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:46,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:47,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:47,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:47,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663334259] [2022-11-25 16:56:47,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663334259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:47,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:47,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:56:47,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029616357] [2022-11-25 16:56:47,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:47,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:56:47,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:47,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:56:47,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:56:48,361 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-25 16:56:48,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 253 transitions, 4659 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:48,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:48,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-25 16:56:48,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:49,240 INFO L130 PetriNetUnfolder]: 360/1082 cut-off events. [2022-11-25 16:56:49,240 INFO L131 PetriNetUnfolder]: For 18189/18189 co-relation queries the response was YES. [2022-11-25 16:56:49,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7965 conditions, 1082 events. 360/1082 cut-off events. For 18189/18189 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 7796 event pairs, 165 based on Foata normal form. 5/1087 useless extension candidates. Maximal degree in co-relation 7586. Up to 836 conditions per place. [2022-11-25 16:56:49,250 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 228 selfloop transitions, 39 changer transitions 0/268 dead transitions. [2022-11-25 16:56:49,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 268 transitions, 5288 flow [2022-11-25 16:56:49,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 16:56:49,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-25 16:56:49,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1426 transitions. [2022-11-25 16:56:49,253 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4250372578241431 [2022-11-25 16:56:49,253 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1426 transitions. [2022-11-25 16:56:49,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1426 transitions. [2022-11-25 16:56:49,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:49,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1426 transitions. [2022-11-25 16:56:49,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 129.63636363636363) internal successors, (1426), 11 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:49,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:49,259 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:49,259 INFO L175 Difference]: Start difference. First operand has 278 places, 253 transitions, 4659 flow. Second operand 11 states and 1426 transitions. [2022-11-25 16:56:49,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 268 transitions, 5288 flow [2022-11-25 16:56:49,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 268 transitions, 5079 flow, removed 34 selfloop flow, removed 14 redundant places. [2022-11-25 16:56:49,363 INFO L231 Difference]: Finished difference. Result has 275 places, 251 transitions, 4562 flow [2022-11-25 16:56:49,364 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4391, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4562, PETRI_PLACES=275, PETRI_TRANSITIONS=251} [2022-11-25 16:56:49,364 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 241 predicate places. [2022-11-25 16:56:49,365 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 251 transitions, 4562 flow [2022-11-25 16:56:49,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:49,365 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:49,365 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:49,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-25 16:56:49,366 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:56:49,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:49,367 INFO L85 PathProgramCache]: Analyzing trace with hash -2067836591, now seen corresponding path program 7 times [2022-11-25 16:56:49,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:49,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338962181] [2022-11-25 16:56:49,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:49,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:50,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:50,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:50,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338962181] [2022-11-25 16:56:50,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338962181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:50,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:50,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 16:56:50,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702732258] [2022-11-25 16:56:50,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:50,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 16:56:50,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:50,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 16:56:50,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-11-25 16:56:51,688 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-25 16:56:51,690 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 251 transitions, 4562 flow. Second operand has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:51,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:51,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-25 16:56:51,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:52,711 INFO L130 PetriNetUnfolder]: 359/1088 cut-off events. [2022-11-25 16:56:52,711 INFO L131 PetriNetUnfolder]: For 18369/18369 co-relation queries the response was YES. [2022-11-25 16:56:52,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7943 conditions, 1088 events. 359/1088 cut-off events. For 18369/18369 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 7869 event pairs, 190 based on Foata normal form. 1/1089 useless extension candidates. Maximal degree in co-relation 7618. Up to 844 conditions per place. [2022-11-25 16:56:52,721 INFO L137 encePairwiseOnDemand]: 291/305 looper letters, 171 selfloop transitions, 87 changer transitions 0/259 dead transitions. [2022-11-25 16:56:52,721 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 259 transitions, 5107 flow [2022-11-25 16:56:52,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:56:52,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 16:56:52,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1553 transitions. [2022-11-25 16:56:52,724 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4243169398907104 [2022-11-25 16:56:52,725 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1553 transitions. [2022-11-25 16:56:52,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1553 transitions. [2022-11-25 16:56:52,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:52,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1553 transitions. [2022-11-25 16:56:52,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 129.41666666666666) internal successors, (1553), 12 states have internal predecessors, (1553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:52,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:52,731 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:52,731 INFO L175 Difference]: Start difference. First operand has 275 places, 251 transitions, 4562 flow. Second operand 12 states and 1553 transitions. [2022-11-25 16:56:52,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 259 transitions, 5107 flow [2022-11-25 16:56:52,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 259 transitions, 5054 flow, removed 12 selfloop flow, removed 6 redundant places. [2022-11-25 16:56:52,820 INFO L231 Difference]: Finished difference. Result has 281 places, 251 transitions, 4694 flow [2022-11-25 16:56:52,820 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4500, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4694, PETRI_PLACES=281, PETRI_TRANSITIONS=251} [2022-11-25 16:56:52,820 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 247 predicate places. [2022-11-25 16:56:52,820 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 251 transitions, 4694 flow [2022-11-25 16:56:52,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:52,822 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:52,822 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:52,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-25 16:56:52,823 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:56:52,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:52,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1904250564, now seen corresponding path program 10 times [2022-11-25 16:56:52,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:52,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767005466] [2022-11-25 16:56:52,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:52,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:53,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:53,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:53,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767005466] [2022-11-25 16:56:53,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767005466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:53,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:53,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:56:53,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092144841] [2022-11-25 16:56:53,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:53,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:56:53,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:53,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:56:53,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:56:55,057 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-25 16:56:55,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 251 transitions, 4694 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:55,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:55,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-25 16:56:55,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:55,963 INFO L130 PetriNetUnfolder]: 355/1065 cut-off events. [2022-11-25 16:56:55,963 INFO L131 PetriNetUnfolder]: For 18687/18687 co-relation queries the response was YES. [2022-11-25 16:56:55,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7912 conditions, 1065 events. 355/1065 cut-off events. For 18687/18687 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 7648 event pairs, 117 based on Foata normal form. 6/1071 useless extension candidates. Maximal degree in co-relation 7631. Up to 540 conditions per place. [2022-11-25 16:56:55,972 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 170 selfloop transitions, 97 changer transitions 0/268 dead transitions. [2022-11-25 16:56:55,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 268 transitions, 5237 flow [2022-11-25 16:56:55,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 16:56:55,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-25 16:56:55,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1689 transitions. [2022-11-25 16:56:55,975 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42597730138713746 [2022-11-25 16:56:55,975 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1689 transitions. [2022-11-25 16:56:55,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1689 transitions. [2022-11-25 16:56:55,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:55,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1689 transitions. [2022-11-25 16:56:55,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 129.92307692307693) internal successors, (1689), 13 states have internal predecessors, (1689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:55,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:55,982 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:55,983 INFO L175 Difference]: Start difference. First operand has 281 places, 251 transitions, 4694 flow. Second operand 13 states and 1689 transitions. [2022-11-25 16:56:55,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 268 transitions, 5237 flow [2022-11-25 16:56:56,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 268 transitions, 5105 flow, removed 14 selfloop flow, removed 11 redundant places. [2022-11-25 16:56:56,081 INFO L231 Difference]: Finished difference. Result has 280 places, 245 transitions, 4654 flow [2022-11-25 16:56:56,081 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4460, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4654, PETRI_PLACES=280, PETRI_TRANSITIONS=245} [2022-11-25 16:56:56,082 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 246 predicate places. [2022-11-25 16:56:56,082 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 245 transitions, 4654 flow [2022-11-25 16:56:56,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:56,082 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:56,083 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:56,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-25 16:56:56,083 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:56:56,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:56,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1797175945, now seen corresponding path program 8 times [2022-11-25 16:56:56,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:56,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234210014] [2022-11-25 16:56:56,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:56,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:56,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:56,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:56,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234210014] [2022-11-25 16:56:56,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234210014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:56,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:56,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 16:56:56,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39916649] [2022-11-25 16:56:56,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:56,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 16:56:56,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:56,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 16:56:56,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-11-25 16:56:58,292 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-25 16:56:58,294 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 245 transitions, 4654 flow. Second operand has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:58,294 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:58,294 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-25 16:56:58,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:59,260 INFO L130 PetriNetUnfolder]: 354/1069 cut-off events. [2022-11-25 16:56:59,261 INFO L131 PetriNetUnfolder]: For 19203/19203 co-relation queries the response was YES. [2022-11-25 16:56:59,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7861 conditions, 1069 events. 354/1069 cut-off events. For 19203/19203 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 7655 event pairs, 193 based on Foata normal form. 1/1070 useless extension candidates. Maximal degree in co-relation 7583. Up to 866 conditions per place. [2022-11-25 16:56:59,301 INFO L137 encePairwiseOnDemand]: 291/305 looper letters, 178 selfloop transitions, 74 changer transitions 0/253 dead transitions. [2022-11-25 16:56:59,301 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 253 transitions, 5187 flow [2022-11-25 16:56:59,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:56:59,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 16:56:59,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1552 transitions. [2022-11-25 16:56:59,304 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4240437158469945 [2022-11-25 16:56:59,304 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1552 transitions. [2022-11-25 16:56:59,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1552 transitions. [2022-11-25 16:56:59,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:59,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1552 transitions. [2022-11-25 16:56:59,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 129.33333333333334) internal successors, (1552), 12 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:59,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:59,310 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:59,310 INFO L175 Difference]: Start difference. First operand has 280 places, 245 transitions, 4654 flow. Second operand 12 states and 1552 transitions. [2022-11-25 16:56:59,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 253 transitions, 5187 flow [2022-11-25 16:56:59,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 253 transitions, 5017 flow, removed 5 selfloop flow, removed 8 redundant places. [2022-11-25 16:56:59,372 INFO L231 Difference]: Finished difference. Result has 284 places, 245 transitions, 4642 flow [2022-11-25 16:56:59,372 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4476, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4642, PETRI_PLACES=284, PETRI_TRANSITIONS=245} [2022-11-25 16:56:59,372 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 250 predicate places. [2022-11-25 16:56:59,373 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 245 transitions, 4642 flow [2022-11-25 16:56:59,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:59,373 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:59,373 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:56:59,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-25 16:56:59,373 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:56:59,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:59,374 INFO L85 PathProgramCache]: Analyzing trace with hash -337587061, now seen corresponding path program 9 times [2022-11-25 16:56:59,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:59,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630051908] [2022-11-25 16:56:59,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:59,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:00,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:00,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:00,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630051908] [2022-11-25 16:57:00,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630051908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:00,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:00,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:57:00,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643785339] [2022-11-25 16:57:00,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:00,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:57:00,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:00,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:57:00,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:01,604 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-25 16:57:01,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 245 transitions, 4642 flow. Second operand has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 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) [2022-11-25 16:57:01,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:01,606 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-25 16:57:01,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:02,671 INFO L130 PetriNetUnfolder]: 361/1089 cut-off events. [2022-11-25 16:57:02,671 INFO L131 PetriNetUnfolder]: For 18557/18557 co-relation queries the response was YES. [2022-11-25 16:57:02,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8004 conditions, 1089 events. 361/1089 cut-off events. For 18557/18557 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 7824 event pairs, 191 based on Foata normal form. 1/1090 useless extension candidates. Maximal degree in co-relation 7724. Up to 823 conditions per place. [2022-11-25 16:57:02,682 INFO L137 encePairwiseOnDemand]: 292/305 looper letters, 222 selfloop transitions, 50 changer transitions 0/273 dead transitions. [2022-11-25 16:57:02,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 273 transitions, 5450 flow [2022-11-25 16:57:02,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 16:57:02,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-25 16:57:02,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2230 transitions. [2022-11-25 16:57:02,685 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43008678881388623 [2022-11-25 16:57:02,686 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2230 transitions. [2022-11-25 16:57:02,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2230 transitions. [2022-11-25 16:57:02,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:02,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2230 transitions. [2022-11-25 16:57:02,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 131.1764705882353) internal successors, (2230), 17 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:02,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 305.0) internal successors, (5490), 18 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:02,695 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 305.0) internal successors, (5490), 18 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:02,695 INFO L175 Difference]: Start difference. First operand has 284 places, 245 transitions, 4642 flow. Second operand 17 states and 2230 transitions. [2022-11-25 16:57:02,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 273 transitions, 5450 flow [2022-11-25 16:57:02,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 273 transitions, 5262 flow, removed 2 selfloop flow, removed 10 redundant places. [2022-11-25 16:57:02,777 INFO L231 Difference]: Finished difference. Result has 293 places, 252 transitions, 4711 flow [2022-11-25 16:57:02,778 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4458, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4711, PETRI_PLACES=293, PETRI_TRANSITIONS=252} [2022-11-25 16:57:02,778 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 259 predicate places. [2022-11-25 16:57:02,779 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 252 transitions, 4711 flow [2022-11-25 16:57:02,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 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) [2022-11-25 16:57:02,779 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:02,779 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:02,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-25 16:57:02,780 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:57:02,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:02,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1384771692, now seen corresponding path program 11 times [2022-11-25 16:57:02,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:02,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878423928] [2022-11-25 16:57:02,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:02,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:03,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:03,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:03,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878423928] [2022-11-25 16:57:03,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878423928] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:03,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:03,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:57:03,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405852342] [2022-11-25 16:57:03,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:03,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:57:03,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:03,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:57:03,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:04,880 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-25 16:57:04,882 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 252 transitions, 4711 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:04,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:04,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-25 16:57:04,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:05,816 INFO L130 PetriNetUnfolder]: 370/1111 cut-off events. [2022-11-25 16:57:05,816 INFO L131 PetriNetUnfolder]: For 19239/19239 co-relation queries the response was YES. [2022-11-25 16:57:05,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8235 conditions, 1111 events. 370/1111 cut-off events. For 19239/19239 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 8091 event pairs, 147 based on Foata normal form. 5/1116 useless extension candidates. Maximal degree in co-relation 7960. Up to 726 conditions per place. [2022-11-25 16:57:05,828 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 233 selfloop transitions, 46 changer transitions 0/280 dead transitions. [2022-11-25 16:57:05,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 280 transitions, 5503 flow [2022-11-25 16:57:05,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 16:57:05,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-25 16:57:05,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1689 transitions. [2022-11-25 16:57:05,831 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42597730138713746 [2022-11-25 16:57:05,832 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1689 transitions. [2022-11-25 16:57:05,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1689 transitions. [2022-11-25 16:57:05,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:05,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1689 transitions. [2022-11-25 16:57:05,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 129.92307692307693) internal successors, (1689), 13 states have internal predecessors, (1689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:05,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:05,837 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:05,837 INFO L175 Difference]: Start difference. First operand has 293 places, 252 transitions, 4711 flow. Second operand 13 states and 1689 transitions. [2022-11-25 16:57:05,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 280 transitions, 5503 flow [2022-11-25 16:57:05,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 280 transitions, 5276 flow, removed 32 selfloop flow, removed 17 redundant places. [2022-11-25 16:57:05,916 INFO L231 Difference]: Finished difference. Result has 291 places, 255 transitions, 4659 flow [2022-11-25 16:57:05,917 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4495, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4659, PETRI_PLACES=291, PETRI_TRANSITIONS=255} [2022-11-25 16:57:05,917 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 257 predicate places. [2022-11-25 16:57:05,917 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 255 transitions, 4659 flow [2022-11-25 16:57:05,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:05,918 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:05,918 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:05,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-25 16:57:05,918 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:57:05,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:05,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1350993513, now seen corresponding path program 10 times [2022-11-25 16:57:05,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:05,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644653069] [2022-11-25 16:57:05,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:05,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:06,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:06,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:06,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644653069] [2022-11-25 16:57:06,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644653069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:06,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:06,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 16:57:06,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144813793] [2022-11-25 16:57:06,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:06,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 16:57:06,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:06,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 16:57:06,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-25 16:57:08,188 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-25 16:57:08,190 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 255 transitions, 4659 flow. Second operand has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:08,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:08,190 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-25 16:57:08,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:09,543 INFO L130 PetriNetUnfolder]: 380/1139 cut-off events. [2022-11-25 16:57:09,543 INFO L131 PetriNetUnfolder]: For 20669/20669 co-relation queries the response was YES. [2022-11-25 16:57:09,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8378 conditions, 1139 events. 380/1139 cut-off events. For 20669/20669 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 8349 event pairs, 123 based on Foata normal form. 6/1145 useless extension candidates. Maximal degree in co-relation 8104. Up to 559 conditions per place. [2022-11-25 16:57:09,554 INFO L137 encePairwiseOnDemand]: 290/305 looper letters, 133 selfloop transitions, 157 changer transitions 0/291 dead transitions. [2022-11-25 16:57:09,554 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 291 transitions, 5719 flow [2022-11-25 16:57:09,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 16:57:09,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-25 16:57:09,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2322 transitions. [2022-11-25 16:57:09,559 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42295081967213116 [2022-11-25 16:57:09,559 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2322 transitions. [2022-11-25 16:57:09,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2322 transitions. [2022-11-25 16:57:09,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:09,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2322 transitions. [2022-11-25 16:57:09,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 129.0) internal successors, (2322), 18 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:09,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 305.0) internal successors, (5795), 19 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:09,572 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 305.0) internal successors, (5795), 19 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:09,573 INFO L175 Difference]: Start difference. First operand has 291 places, 255 transitions, 4659 flow. Second operand 18 states and 2322 transitions. [2022-11-25 16:57:09,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 291 transitions, 5719 flow [2022-11-25 16:57:09,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 291 transitions, 5652 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-25 16:57:09,687 INFO L231 Difference]: Finished difference. Result has 304 places, 272 transitions, 5313 flow [2022-11-25 16:57:09,687 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4596, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5313, PETRI_PLACES=304, PETRI_TRANSITIONS=272} [2022-11-25 16:57:09,688 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 270 predicate places. [2022-11-25 16:57:09,688 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 272 transitions, 5313 flow [2022-11-25 16:57:09,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:09,689 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:09,689 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:09,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-25 16:57:09,689 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:57:09,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:09,690 INFO L85 PathProgramCache]: Analyzing trace with hash 698743592, now seen corresponding path program 12 times [2022-11-25 16:57:09,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:09,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975822483] [2022-11-25 16:57:09,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:09,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:10,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:10,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975822483] [2022-11-25 16:57:10,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975822483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:10,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:10,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:57:10,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368655587] [2022-11-25 16:57:10,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:10,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:57:10,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:10,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:57:10,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:11,672 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-25 16:57:11,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 272 transitions, 5313 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:11,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:11,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-25 16:57:11,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:12,513 INFO L130 PetriNetUnfolder]: 387/1172 cut-off events. [2022-11-25 16:57:12,514 INFO L131 PetriNetUnfolder]: For 23583/23583 co-relation queries the response was YES. [2022-11-25 16:57:12,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9066 conditions, 1172 events. 387/1172 cut-off events. For 23583/23583 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 8726 event pairs, 90 based on Foata normal form. 11/1183 useless extension candidates. Maximal degree in co-relation 8758. Up to 513 conditions per place. [2022-11-25 16:57:12,524 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 173 selfloop transitions, 117 changer transitions 0/291 dead transitions. [2022-11-25 16:57:12,524 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 291 transitions, 6032 flow [2022-11-25 16:57:12,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:57:12,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 16:57:12,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1558 transitions. [2022-11-25 16:57:12,527 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42568306010928963 [2022-11-25 16:57:12,527 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1558 transitions. [2022-11-25 16:57:12,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1558 transitions. [2022-11-25 16:57:12,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:12,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1558 transitions. [2022-11-25 16:57:12,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 129.83333333333334) internal successors, (1558), 12 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:12,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:12,531 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:12,531 INFO L175 Difference]: Start difference. First operand has 304 places, 272 transitions, 5313 flow. Second operand 12 states and 1558 transitions. [2022-11-25 16:57:12,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 291 transitions, 6032 flow [2022-11-25 16:57:12,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 291 transitions, 5743 flow, removed 61 selfloop flow, removed 11 redundant places. [2022-11-25 16:57:12,661 INFO L231 Difference]: Finished difference. Result has 306 places, 271 transitions, 5363 flow [2022-11-25 16:57:12,662 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4984, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5363, PETRI_PLACES=306, PETRI_TRANSITIONS=271} [2022-11-25 16:57:12,663 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 272 predicate places. [2022-11-25 16:57:12,663 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 271 transitions, 5363 flow [2022-11-25 16:57:12,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:12,663 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:12,664 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:12,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-25 16:57:12,664 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:57:12,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:12,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1966200771, now seen corresponding path program 11 times [2022-11-25 16:57:12,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:12,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450362306] [2022-11-25 16:57:12,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:12,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:13,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:13,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450362306] [2022-11-25 16:57:13,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450362306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:13,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:13,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 16:57:13,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081758938] [2022-11-25 16:57:13,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:13,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 16:57:13,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:13,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 16:57:13,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-11-25 16:57:14,884 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-25 16:57:14,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 271 transitions, 5363 flow. Second operand has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:14,886 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:14,886 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-25 16:57:14,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:16,027 INFO L130 PetriNetUnfolder]: 382/1161 cut-off events. [2022-11-25 16:57:16,027 INFO L131 PetriNetUnfolder]: For 23374/23374 co-relation queries the response was YES. [2022-11-25 16:57:16,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8954 conditions, 1161 events. 382/1161 cut-off events. For 23374/23374 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 8603 event pairs, 99 based on Foata normal form. 5/1166 useless extension candidates. Maximal degree in co-relation 8636. Up to 650 conditions per place. [2022-11-25 16:57:16,037 INFO L137 encePairwiseOnDemand]: 290/305 looper letters, 137 selfloop transitions, 144 changer transitions 0/282 dead transitions. [2022-11-25 16:57:16,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 282 transitions, 5936 flow [2022-11-25 16:57:16,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 16:57:16,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 16:57:16,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1811 transitions. [2022-11-25 16:57:16,039 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4241217798594848 [2022-11-25 16:57:16,039 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1811 transitions. [2022-11-25 16:57:16,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1811 transitions. [2022-11-25 16:57:16,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:16,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1811 transitions. [2022-11-25 16:57:16,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 129.35714285714286) internal successors, (1811), 14 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:16,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:16,044 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:16,044 INFO L175 Difference]: Start difference. First operand has 306 places, 271 transitions, 5363 flow. Second operand 14 states and 1811 transitions. [2022-11-25 16:57:16,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 282 transitions, 5936 flow [2022-11-25 16:57:16,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 282 transitions, 5736 flow, removed 9 selfloop flow, removed 10 redundant places. [2022-11-25 16:57:16,131 INFO L231 Difference]: Finished difference. Result has 310 places, 270 transitions, 5443 flow [2022-11-25 16:57:16,132 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=5102, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5443, PETRI_PLACES=310, PETRI_TRANSITIONS=270} [2022-11-25 16:57:16,132 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 276 predicate places. [2022-11-25 16:57:16,132 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 270 transitions, 5443 flow [2022-11-25 16:57:16,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:16,133 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:16,133 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:16,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-25 16:57:16,133 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:57:16,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:16,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1691825582, now seen corresponding path program 13 times [2022-11-25 16:57:16,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:16,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153364100] [2022-11-25 16:57:16,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:16,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:16,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:16,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:16,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153364100] [2022-11-25 16:57:16,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153364100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:16,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:16,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:57:16,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743427417] [2022-11-25 16:57:16,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:16,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:57:16,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:16,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:57:16,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:18,098 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-25 16:57:18,099 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 270 transitions, 5443 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:18,100 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:18,100 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-25 16:57:18,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:19,129 INFO L130 PetriNetUnfolder]: 386/1172 cut-off events. [2022-11-25 16:57:19,129 INFO L131 PetriNetUnfolder]: For 24887/24887 co-relation queries the response was YES. [2022-11-25 16:57:19,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9228 conditions, 1172 events. 386/1172 cut-off events. For 24887/24887 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 8744 event pairs, 91 based on Foata normal form. 10/1182 useless extension candidates. Maximal degree in co-relation 8939. Up to 445 conditions per place. [2022-11-25 16:57:19,139 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 177 selfloop transitions, 120 changer transitions 0/298 dead transitions. [2022-11-25 16:57:19,140 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 298 transitions, 6218 flow [2022-11-25 16:57:19,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 16:57:19,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 16:57:19,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1820 transitions. [2022-11-25 16:57:19,142 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4262295081967213 [2022-11-25 16:57:19,142 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1820 transitions. [2022-11-25 16:57:19,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1820 transitions. [2022-11-25 16:57:19,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:19,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1820 transitions. [2022-11-25 16:57:19,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:19,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:19,146 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:19,147 INFO L175 Difference]: Start difference. First operand has 310 places, 270 transitions, 5443 flow. Second operand 14 states and 1820 transitions. [2022-11-25 16:57:19,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 298 transitions, 6218 flow [2022-11-25 16:57:19,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 298 transitions, 5871 flow, removed 9 selfloop flow, removed 15 redundant places. [2022-11-25 16:57:19,234 INFO L231 Difference]: Finished difference. Result has 311 places, 270 transitions, 5459 flow [2022-11-25 16:57:19,235 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=5068, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5459, PETRI_PLACES=311, PETRI_TRANSITIONS=270} [2022-11-25 16:57:19,235 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 277 predicate places. [2022-11-25 16:57:19,235 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 270 transitions, 5459 flow [2022-11-25 16:57:19,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:19,236 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:19,236 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:19,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-25 16:57:19,236 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:57:19,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:19,237 INFO L85 PathProgramCache]: Analyzing trace with hash 661548177, now seen corresponding path program 12 times [2022-11-25 16:57:19,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:19,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287532262] [2022-11-25 16:57:19,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:19,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:20,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:20,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:20,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287532262] [2022-11-25 16:57:20,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287532262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:20,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:20,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:57:20,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046313442] [2022-11-25 16:57:20,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:20,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:57:20,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:20,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:57:20,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:21,018 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-25 16:57:21,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 270 transitions, 5459 flow. Second operand has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 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) [2022-11-25 16:57:21,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:21,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-25 16:57:21,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:22,215 INFO L130 PetriNetUnfolder]: 389/1179 cut-off events. [2022-11-25 16:57:22,215 INFO L131 PetriNetUnfolder]: For 26137/26137 co-relation queries the response was YES. [2022-11-25 16:57:22,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9300 conditions, 1179 events. 389/1179 cut-off events. For 26137/26137 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 8801 event pairs, 90 based on Foata normal form. 2/1181 useless extension candidates. Maximal degree in co-relation 8972. Up to 530 conditions per place. [2022-11-25 16:57:22,226 INFO L137 encePairwiseOnDemand]: 292/305 looper letters, 101 selfloop transitions, 190 changer transitions 0/292 dead transitions. [2022-11-25 16:57:22,226 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 292 transitions, 6337 flow [2022-11-25 16:57:22,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 16:57:22,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-25 16:57:22,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2599 transitions. [2022-11-25 16:57:22,230 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4260655737704918 [2022-11-25 16:57:22,230 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2599 transitions. [2022-11-25 16:57:22,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2599 transitions. [2022-11-25 16:57:22,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:22,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2599 transitions. [2022-11-25 16:57:22,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 129.95) internal successors, (2599), 20 states have internal predecessors, (2599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:22,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 305.0) internal successors, (6405), 21 states have internal predecessors, (6405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:22,239 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 305.0) internal successors, (6405), 21 states have internal predecessors, (6405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:22,239 INFO L175 Difference]: Start difference. First operand has 311 places, 270 transitions, 5459 flow. Second operand 20 states and 2599 transitions. [2022-11-25 16:57:22,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 292 transitions, 6337 flow [2022-11-25 16:57:22,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 292 transitions, 6157 flow, removed 20 selfloop flow, removed 6 redundant places. [2022-11-25 16:57:22,340 INFO L231 Difference]: Finished difference. Result has 328 places, 280 transitions, 6051 flow [2022-11-25 16:57:22,340 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=5279, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=181, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=6051, PETRI_PLACES=328, PETRI_TRANSITIONS=280} [2022-11-25 16:57:22,341 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 294 predicate places. [2022-11-25 16:57:22,341 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 280 transitions, 6051 flow [2022-11-25 16:57:22,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 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) [2022-11-25 16:57:22,342 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:22,342 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:22,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-25 16:57:22,342 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:57:22,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:22,342 INFO L85 PathProgramCache]: Analyzing trace with hash -732521772, now seen corresponding path program 14 times [2022-11-25 16:57:22,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:22,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497734173] [2022-11-25 16:57:22,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:22,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:23,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:23,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:23,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497734173] [2022-11-25 16:57:23,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497734173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:23,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:23,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:57:23,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397019943] [2022-11-25 16:57:23,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:23,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:57:23,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:23,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:57:23,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:24,399 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-25 16:57:24,399 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 280 transitions, 6051 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:24,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:24,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-25 16:57:24,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:25,677 INFO L130 PetriNetUnfolder]: 396/1204 cut-off events. [2022-11-25 16:57:25,677 INFO L131 PetriNetUnfolder]: For 28517/28517 co-relation queries the response was YES. [2022-11-25 16:57:25,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9886 conditions, 1204 events. 396/1204 cut-off events. For 28517/28517 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 9069 event pairs, 164 based on Foata normal form. 5/1206 useless extension candidates. Maximal degree in co-relation 9575. Up to 788 conditions per place. [2022-11-25 16:57:25,687 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 262 selfloop transitions, 54 changer transitions 0/317 dead transitions. [2022-11-25 16:57:25,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 317 transitions, 7037 flow [2022-11-25 16:57:25,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:57:25,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-25 16:57:25,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1955 transitions. [2022-11-25 16:57:25,690 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4273224043715847 [2022-11-25 16:57:25,690 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1955 transitions. [2022-11-25 16:57:25,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1955 transitions. [2022-11-25 16:57:25,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:25,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1955 transitions. [2022-11-25 16:57:25,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 130.33333333333334) internal successors, (1955), 15 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:25,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:25,695 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:25,696 INFO L175 Difference]: Start difference. First operand has 328 places, 280 transitions, 6051 flow. Second operand 15 states and 1955 transitions. [2022-11-25 16:57:25,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 317 transitions, 7037 flow [2022-11-25 16:57:25,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 317 transitions, 6851 flow, removed 24 selfloop flow, removed 12 redundant places. [2022-11-25 16:57:25,803 INFO L231 Difference]: Finished difference. Result has 335 places, 283 transitions, 6168 flow [2022-11-25 16:57:25,804 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=5847, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6168, PETRI_PLACES=335, PETRI_TRANSITIONS=283} [2022-11-25 16:57:25,804 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 301 predicate places. [2022-11-25 16:57:25,804 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 283 transitions, 6168 flow [2022-11-25 16:57:25,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:25,805 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:25,805 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:25,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-25 16:57:25,805 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:57:25,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:25,806 INFO L85 PathProgramCache]: Analyzing trace with hash 569493986, now seen corresponding path program 15 times [2022-11-25 16:57:25,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:25,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871318956] [2022-11-25 16:57:25,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:25,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:25,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:26,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:26,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:26,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871318956] [2022-11-25 16:57:26,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871318956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:26,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:26,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:57:26,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452242525] [2022-11-25 16:57:26,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:26,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 16:57:26,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:26,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 16:57:26,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:57:27,670 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 305 [2022-11-25 16:57:27,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 283 transitions, 6168 flow. Second operand has 14 states, 14 states have (on average 127.07142857142857) internal successors, (1779), 14 states have internal predecessors, (1779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:27,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:27,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 305 [2022-11-25 16:57:27,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:29,006 INFO L130 PetriNetUnfolder]: 416/1291 cut-off events. [2022-11-25 16:57:29,006 INFO L131 PetriNetUnfolder]: For 34333/34333 co-relation queries the response was YES. [2022-11-25 16:57:29,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10865 conditions, 1291 events. 416/1291 cut-off events. For 34333/34333 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10018 event pairs, 100 based on Foata normal form. 9/1297 useless extension candidates. Maximal degree in co-relation 10547. Up to 507 conditions per place. [2022-11-25 16:57:29,019 INFO L137 encePairwiseOnDemand]: 291/305 looper letters, 168 selfloop transitions, 146 changer transitions 0/315 dead transitions. [2022-11-25 16:57:29,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 315 transitions, 7323 flow [2022-11-25 16:57:29,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:57:29,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-25 16:57:29,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1958 transitions. [2022-11-25 16:57:29,021 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42797814207650275 [2022-11-25 16:57:29,021 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1958 transitions. [2022-11-25 16:57:29,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1958 transitions. [2022-11-25 16:57:29,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:29,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1958 transitions. [2022-11-25 16:57:29,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 130.53333333333333) internal successors, (1958), 15 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:29,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:29,026 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:29,026 INFO L175 Difference]: Start difference. First operand has 335 places, 283 transitions, 6168 flow. Second operand 15 states and 1958 transitions. [2022-11-25 16:57:29,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 315 transitions, 7323 flow [2022-11-25 16:57:29,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 315 transitions, 7159 flow, removed 29 selfloop flow, removed 7 redundant places. [2022-11-25 16:57:29,141 INFO L231 Difference]: Finished difference. Result has 348 places, 293 transitions, 6726 flow [2022-11-25 16:57:29,141 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=5979, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6726, PETRI_PLACES=348, PETRI_TRANSITIONS=293} [2022-11-25 16:57:29,142 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 314 predicate places. [2022-11-25 16:57:29,142 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 293 transitions, 6726 flow [2022-11-25 16:57:29,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 127.07142857142857) internal successors, (1779), 14 states have internal predecessors, (1779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:29,143 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:29,143 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:29,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-25 16:57:29,143 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:57:29,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:29,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1384771691, now seen corresponding path program 13 times [2022-11-25 16:57:29,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:29,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081765510] [2022-11-25 16:57:29,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:29,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:29,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:29,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:29,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081765510] [2022-11-25 16:57:29,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081765510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:29,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:29,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:57:29,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004143693] [2022-11-25 16:57:29,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:29,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:57:29,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:29,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:57:29,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:30,978 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-25 16:57:30,978 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 293 transitions, 6726 flow. Second operand has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 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) [2022-11-25 16:57:30,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:30,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-25 16:57:30,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:31,911 INFO L130 PetriNetUnfolder]: 415/1291 cut-off events. [2022-11-25 16:57:31,911 INFO L131 PetriNetUnfolder]: For 35386/35386 co-relation queries the response was YES. [2022-11-25 16:57:31,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11504 conditions, 1291 events. 415/1291 cut-off events. For 35386/35386 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10029 event pairs, 245 based on Foata normal form. 1/1289 useless extension candidates. Maximal degree in co-relation 11120. Up to 967 conditions per place. [2022-11-25 16:57:31,927 INFO L137 encePairwiseOnDemand]: 291/305 looper letters, 257 selfloop transitions, 49 changer transitions 0/307 dead transitions. [2022-11-25 16:57:31,927 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 307 transitions, 7441 flow [2022-11-25 16:57:31,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 16:57:31,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 16:57:31,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1841 transitions. [2022-11-25 16:57:31,929 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4311475409836066 [2022-11-25 16:57:31,929 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1841 transitions. [2022-11-25 16:57:31,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1841 transitions. [2022-11-25 16:57:31,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:31,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1841 transitions. [2022-11-25 16:57:31,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 131.5) internal successors, (1841), 14 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:31,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:31,933 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:31,933 INFO L175 Difference]: Start difference. First operand has 348 places, 293 transitions, 6726 flow. Second operand 14 states and 1841 transitions. [2022-11-25 16:57:31,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 307 transitions, 7441 flow [2022-11-25 16:57:32,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 307 transitions, 7222 flow, removed 41 selfloop flow, removed 6 redundant places. [2022-11-25 16:57:32,060 INFO L231 Difference]: Finished difference. Result has 356 places, 293 transitions, 6629 flow [2022-11-25 16:57:32,060 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=6500, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6629, PETRI_PLACES=356, PETRI_TRANSITIONS=293} [2022-11-25 16:57:32,061 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 322 predicate places. [2022-11-25 16:57:32,061 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 293 transitions, 6629 flow [2022-11-25 16:57:32,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 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) [2022-11-25 16:57:32,061 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:32,061 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:32,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-25 16:57:32,061 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:57:32,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:32,062 INFO L85 PathProgramCache]: Analyzing trace with hash -429641252, now seen corresponding path program 16 times [2022-11-25 16:57:32,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:32,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216534435] [2022-11-25 16:57:32,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:32,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:32,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:32,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:32,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216534435] [2022-11-25 16:57:32,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216534435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:32,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:32,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:57:32,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565560991] [2022-11-25 16:57:32,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:32,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:57:32,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:32,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:57:32,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:34,066 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-25 16:57:34,067 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 293 transitions, 6629 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:34,067 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:34,067 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-25 16:57:34,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:35,240 INFO L130 PetriNetUnfolder]: 412/1280 cut-off events. [2022-11-25 16:57:35,240 INFO L131 PetriNetUnfolder]: For 33935/33935 co-relation queries the response was YES. [2022-11-25 16:57:35,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11282 conditions, 1280 events. 412/1280 cut-off events. For 33935/33935 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 9897 event pairs, 272 based on Foata normal form. 5/1282 useless extension candidates. Maximal degree in co-relation 10996. Up to 988 conditions per place. [2022-11-25 16:57:35,255 INFO L137 encePairwiseOnDemand]: 295/305 looper letters, 284 selfloop transitions, 28 changer transitions 0/313 dead transitions. [2022-11-25 16:57:35,255 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 313 transitions, 7366 flow [2022-11-25 16:57:35,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:57:35,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 16:57:35,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1569 transitions. [2022-11-25 16:57:35,258 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42868852459016393 [2022-11-25 16:57:35,258 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1569 transitions. [2022-11-25 16:57:35,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1569 transitions. [2022-11-25 16:57:35,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:35,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1569 transitions. [2022-11-25 16:57:35,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 130.75) internal successors, (1569), 12 states have internal predecessors, (1569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:35,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:35,263 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:35,263 INFO L175 Difference]: Start difference. First operand has 356 places, 293 transitions, 6629 flow. Second operand 12 states and 1569 transitions. [2022-11-25 16:57:35,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 313 transitions, 7366 flow [2022-11-25 16:57:35,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 313 transitions, 7210 flow, removed 20 selfloop flow, removed 14 redundant places. [2022-11-25 16:57:35,392 INFO L231 Difference]: Finished difference. Result has 351 places, 290 transitions, 6508 flow [2022-11-25 16:57:35,393 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=6406, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6508, PETRI_PLACES=351, PETRI_TRANSITIONS=290} [2022-11-25 16:57:35,393 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 317 predicate places. [2022-11-25 16:57:35,394 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 290 transitions, 6508 flow [2022-11-25 16:57:35,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:35,394 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:35,394 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:35,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-25 16:57:35,395 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:57:35,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:35,395 INFO L85 PathProgramCache]: Analyzing trace with hash -82755934, now seen corresponding path program 17 times [2022-11-25 16:57:35,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:35,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382115970] [2022-11-25 16:57:35,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:35,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:36,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:36,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:36,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382115970] [2022-11-25 16:57:36,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382115970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:36,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:36,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:57:36,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577329868] [2022-11-25 16:57:36,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:36,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:57:36,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:36,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:57:36,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:37,317 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-25 16:57:37,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 290 transitions, 6508 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:37,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:37,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-25 16:57:37,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:38,328 INFO L130 PetriNetUnfolder]: 416/1295 cut-off events. [2022-11-25 16:57:38,328 INFO L131 PetriNetUnfolder]: For 34227/34227 co-relation queries the response was YES. [2022-11-25 16:57:38,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11360 conditions, 1295 events. 416/1295 cut-off events. For 34227/34227 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10086 event pairs, 99 based on Foata normal form. 5/1297 useless extension candidates. Maximal degree in co-relation 11076. Up to 535 conditions per place. [2022-11-25 16:57:38,340 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 174 selfloop transitions, 130 changer transitions 0/305 dead transitions. [2022-11-25 16:57:38,340 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 305 transitions, 7218 flow [2022-11-25 16:57:38,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:57:38,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 16:57:38,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1552 transitions. [2022-11-25 16:57:38,342 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4240437158469945 [2022-11-25 16:57:38,342 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1552 transitions. [2022-11-25 16:57:38,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1552 transitions. [2022-11-25 16:57:38,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:38,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1552 transitions. [2022-11-25 16:57:38,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 129.33333333333334) internal successors, (1552), 12 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:38,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:38,347 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:38,347 INFO L175 Difference]: Start difference. First operand has 351 places, 290 transitions, 6508 flow. Second operand 12 states and 1552 transitions. [2022-11-25 16:57:38,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 305 transitions, 7218 flow [2022-11-25 16:57:38,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 305 transitions, 7048 flow, removed 35 selfloop flow, removed 10 redundant places. [2022-11-25 16:57:38,472 INFO L231 Difference]: Finished difference. Result has 354 places, 289 transitions, 6694 flow [2022-11-25 16:57:38,472 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=6311, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6694, PETRI_PLACES=354, PETRI_TRANSITIONS=289} [2022-11-25 16:57:38,472 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 320 predicate places. [2022-11-25 16:57:38,472 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 289 transitions, 6694 flow [2022-11-25 16:57:38,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:38,473 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:38,473 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:38,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-25 16:57:38,473 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:57:38,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:38,473 INFO L85 PathProgramCache]: Analyzing trace with hash -82755933, now seen corresponding path program 14 times [2022-11-25 16:57:38,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:38,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100418936] [2022-11-25 16:57:38,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:38,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:39,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:39,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:39,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100418936] [2022-11-25 16:57:39,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100418936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:39,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:39,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:57:39,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461131461] [2022-11-25 16:57:39,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:39,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:57:39,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:39,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:57:39,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:40,333 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-25 16:57:40,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 289 transitions, 6694 flow. Second operand has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 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) [2022-11-25 16:57:40,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:40,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-25 16:57:40,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:41,413 INFO L130 PetriNetUnfolder]: 415/1291 cut-off events. [2022-11-25 16:57:41,413 INFO L131 PetriNetUnfolder]: For 36219/36219 co-relation queries the response was YES. [2022-11-25 16:57:41,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11300 conditions, 1291 events. 415/1291 cut-off events. For 36219/36219 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10006 event pairs, 119 based on Foata normal form. 1/1292 useless extension candidates. Maximal degree in co-relation 11006. Up to 757 conditions per place. [2022-11-25 16:57:41,425 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 142 selfloop transitions, 149 changer transitions 0/292 dead transitions. [2022-11-25 16:57:41,425 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 292 transitions, 7247 flow [2022-11-25 16:57:41,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 16:57:41,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 16:57:41,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1822 transitions. [2022-11-25 16:57:41,428 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42669789227166277 [2022-11-25 16:57:41,428 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1822 transitions. [2022-11-25 16:57:41,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1822 transitions. [2022-11-25 16:57:41,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:41,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1822 transitions. [2022-11-25 16:57:41,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:41,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:41,432 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:41,432 INFO L175 Difference]: Start difference. First operand has 354 places, 289 transitions, 6694 flow. Second operand 14 states and 1822 transitions. [2022-11-25 16:57:41,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 292 transitions, 7247 flow [2022-11-25 16:57:41,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 292 transitions, 6986 flow, removed 3 selfloop flow, removed 11 redundant places. [2022-11-25 16:57:41,560 INFO L231 Difference]: Finished difference. Result has 357 places, 288 transitions, 6706 flow [2022-11-25 16:57:41,560 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=6377, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6706, PETRI_PLACES=357, PETRI_TRANSITIONS=288} [2022-11-25 16:57:41,560 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 323 predicate places. [2022-11-25 16:57:41,560 INFO L495 AbstractCegarLoop]: Abstraction has has 357 places, 288 transitions, 6706 flow [2022-11-25 16:57:41,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 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) [2022-11-25 16:57:41,561 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:41,561 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:41,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-25 16:57:41,561 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:57:41,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:41,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1902149556, now seen corresponding path program 1 times [2022-11-25 16:57:41,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:41,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801111227] [2022-11-25 16:57:41,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:41,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:42,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:42,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:42,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801111227] [2022-11-25 16:57:42,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801111227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:42,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:42,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:57:42,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795622908] [2022-11-25 16:57:42,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:42,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 16:57:42,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:42,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 16:57:42,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:57:44,152 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 305 [2022-11-25 16:57:44,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 288 transitions, 6706 flow. Second operand has 14 states, 14 states have (on average 127.14285714285714) internal successors, (1780), 14 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:44,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:44,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 305 [2022-11-25 16:57:44,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:45,220 INFO L130 PetriNetUnfolder]: 414/1289 cut-off events. [2022-11-25 16:57:45,220 INFO L131 PetriNetUnfolder]: For 34252/34252 co-relation queries the response was YES. [2022-11-25 16:57:45,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11335 conditions, 1289 events. 414/1289 cut-off events. For 34252/34252 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10012 event pairs, 275 based on Foata normal form. 1/1290 useless extension candidates. Maximal degree in co-relation 11042. Up to 1056 conditions per place. [2022-11-25 16:57:45,238 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 241 selfloop transitions, 68 changer transitions 0/310 dead transitions. [2022-11-25 16:57:45,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 310 transitions, 7610 flow [2022-11-25 16:57:45,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:57:45,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 16:57:45,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1566 transitions. [2022-11-25 16:57:45,240 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4278688524590164 [2022-11-25 16:57:45,240 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1566 transitions. [2022-11-25 16:57:45,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1566 transitions. [2022-11-25 16:57:45,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:45,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1566 transitions. [2022-11-25 16:57:45,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 130.5) internal successors, (1566), 12 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:45,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:45,243 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:45,243 INFO L175 Difference]: Start difference. First operand has 357 places, 288 transitions, 6706 flow. Second operand 12 states and 1566 transitions. [2022-11-25 16:57:45,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 310 transitions, 7610 flow [2022-11-25 16:57:45,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 310 transitions, 7364 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-11-25 16:57:45,365 INFO L231 Difference]: Finished difference. Result has 359 places, 291 transitions, 6656 flow [2022-11-25 16:57:45,365 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=6466, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6656, PETRI_PLACES=359, PETRI_TRANSITIONS=291} [2022-11-25 16:57:45,365 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 325 predicate places. [2022-11-25 16:57:45,365 INFO L495 AbstractCegarLoop]: Abstraction has has 359 places, 291 transitions, 6656 flow [2022-11-25 16:57:45,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 127.14285714285714) internal successors, (1780), 14 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:45,366 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:45,366 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:45,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-25 16:57:45,366 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:57:45,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:45,366 INFO L85 PathProgramCache]: Analyzing trace with hash 130630810, now seen corresponding path program 2 times [2022-11-25 16:57:45,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:45,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208322822] [2022-11-25 16:57:45,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:45,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:46,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:46,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:46,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208322822] [2022-11-25 16:57:46,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208322822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:46,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:46,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 16:57:46,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106966691] [2022-11-25 16:57:46,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:46,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 16:57:46,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:46,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 16:57:46,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-25 16:57:48,245 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 305 [2022-11-25 16:57:48,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 291 transitions, 6656 flow. Second operand has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:48,246 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:48,246 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 305 [2022-11-25 16:57:48,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:49,800 INFO L130 PetriNetUnfolder]: 417/1300 cut-off events. [2022-11-25 16:57:49,800 INFO L131 PetriNetUnfolder]: For 34164/34164 co-relation queries the response was YES. [2022-11-25 16:57:49,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11454 conditions, 1300 events. 417/1300 cut-off events. For 34164/34164 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10153 event pairs, 259 based on Foata normal form. 4/1304 useless extension candidates. Maximal degree in co-relation 11159. Up to 1078 conditions per place. [2022-11-25 16:57:49,814 INFO L137 encePairwiseOnDemand]: 290/305 looper letters, 227 selfloop transitions, 81 changer transitions 0/309 dead transitions. [2022-11-25 16:57:49,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 309 transitions, 7353 flow [2022-11-25 16:57:49,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 16:57:49,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-25 16:57:49,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2298 transitions. [2022-11-25 16:57:49,817 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41857923497267757 [2022-11-25 16:57:49,817 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2298 transitions. [2022-11-25 16:57:49,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2298 transitions. [2022-11-25 16:57:49,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:49,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2298 transitions. [2022-11-25 16:57:49,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 127.66666666666667) internal successors, (2298), 18 states have internal predecessors, (2298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:49,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 305.0) internal successors, (5795), 19 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:49,825 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 305.0) internal successors, (5795), 19 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:49,826 INFO L175 Difference]: Start difference. First operand has 359 places, 291 transitions, 6656 flow. Second operand 18 states and 2298 transitions. [2022-11-25 16:57:49,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 309 transitions, 7353 flow [2022-11-25 16:57:49,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 309 transitions, 7250 flow, removed 11 selfloop flow, removed 8 redundant places. [2022-11-25 16:57:49,953 INFO L231 Difference]: Finished difference. Result has 370 places, 296 transitions, 6775 flow [2022-11-25 16:57:49,953 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=6565, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6775, PETRI_PLACES=370, PETRI_TRANSITIONS=296} [2022-11-25 16:57:49,954 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 336 predicate places. [2022-11-25 16:57:49,954 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 296 transitions, 6775 flow [2022-11-25 16:57:49,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:49,954 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:49,955 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:49,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-25 16:57:49,955 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:57:49,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:49,955 INFO L85 PathProgramCache]: Analyzing trace with hash -645044764, now seen corresponding path program 3 times [2022-11-25 16:57:49,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:49,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994007475] [2022-11-25 16:57:49,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:49,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:51,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:51,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:51,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994007475] [2022-11-25 16:57:51,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994007475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:51,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:51,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:57:51,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278576987] [2022-11-25 16:57:51,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:51,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 16:57:51,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:51,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 16:57:51,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:57:52,317 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-25 16:57:52,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 296 transitions, 6775 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:52,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:52,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-25 16:57:52,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:53,791 INFO L130 PetriNetUnfolder]: 427/1332 cut-off events. [2022-11-25 16:57:53,791 INFO L131 PetriNetUnfolder]: For 35039/35039 co-relation queries the response was YES. [2022-11-25 16:57:53,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11943 conditions, 1332 events. 427/1332 cut-off events. For 35039/35039 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 10476 event pairs, 227 based on Foata normal form. 2/1331 useless extension candidates. Maximal degree in co-relation 11646. Up to 850 conditions per place. [2022-11-25 16:57:53,803 INFO L137 encePairwiseOnDemand]: 292/305 looper letters, 209 selfloop transitions, 112 changer transitions 0/322 dead transitions. [2022-11-25 16:57:53,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 322 transitions, 7772 flow [2022-11-25 16:57:53,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 16:57:53,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-25 16:57:53,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2226 transitions. [2022-11-25 16:57:53,806 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42931533269045324 [2022-11-25 16:57:53,806 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2226 transitions. [2022-11-25 16:57:53,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2226 transitions. [2022-11-25 16:57:53,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:53,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2226 transitions. [2022-11-25 16:57:53,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 130.94117647058823) internal successors, (2226), 17 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:53,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 305.0) internal successors, (5490), 18 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:53,813 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 305.0) internal successors, (5490), 18 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:53,813 INFO L175 Difference]: Start difference. First operand has 370 places, 296 transitions, 6775 flow. Second operand 17 states and 2226 transitions. [2022-11-25 16:57:53,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 322 transitions, 7772 flow [2022-11-25 16:57:53,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 322 transitions, 7648 flow, removed 3 selfloop flow, removed 14 redundant places. [2022-11-25 16:57:53,979 INFO L231 Difference]: Finished difference. Result has 374 places, 306 transitions, 7123 flow [2022-11-25 16:57:53,979 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=6653, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=7123, PETRI_PLACES=374, PETRI_TRANSITIONS=306} [2022-11-25 16:57:53,980 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 340 predicate places. [2022-11-25 16:57:53,980 INFO L495 AbstractCegarLoop]: Abstraction has has 374 places, 306 transitions, 7123 flow [2022-11-25 16:57:53,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:53,980 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:53,980 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:53,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-25 16:57:53,980 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:57:53,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:53,981 INFO L85 PathProgramCache]: Analyzing trace with hash -122119252, now seen corresponding path program 4 times [2022-11-25 16:57:53,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:53,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001550105] [2022-11-25 16:57:53,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:53,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:54,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:54,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:54,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:54,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001550105] [2022-11-25 16:57:54,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001550105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:54,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:54,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:57:54,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877580540] [2022-11-25 16:57:54,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:54,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 16:57:54,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:54,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 16:57:54,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:57:56,518 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-25 16:57:56,519 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 306 transitions, 7123 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:56,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:57:56,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-25 16:57:56,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:57:57,760 INFO L130 PetriNetUnfolder]: 426/1329 cut-off events. [2022-11-25 16:57:57,760 INFO L131 PetriNetUnfolder]: For 36431/36431 co-relation queries the response was YES. [2022-11-25 16:57:57,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12241 conditions, 1329 events. 426/1329 cut-off events. For 36431/36431 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 10463 event pairs, 232 based on Foata normal form. 1/1327 useless extension candidates. Maximal degree in co-relation 11941. Up to 850 conditions per place. [2022-11-25 16:57:57,773 INFO L137 encePairwiseOnDemand]: 292/305 looper letters, 232 selfloop transitions, 87 changer transitions 0/320 dead transitions. [2022-11-25 16:57:57,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 320 transitions, 7841 flow [2022-11-25 16:57:57,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:57:57,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-25 16:57:57,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1967 transitions. [2022-11-25 16:57:57,776 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4299453551912568 [2022-11-25 16:57:57,776 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1967 transitions. [2022-11-25 16:57:57,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1967 transitions. [2022-11-25 16:57:57,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:57:57,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1967 transitions. [2022-11-25 16:57:57,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 131.13333333333333) internal successors, (1967), 15 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:57,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:57,783 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:57,783 INFO L175 Difference]: Start difference. First operand has 374 places, 306 transitions, 7123 flow. Second operand 15 states and 1967 transitions. [2022-11-25 16:57:57,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 320 transitions, 7841 flow [2022-11-25 16:57:57,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 320 transitions, 7727 flow, removed 7 selfloop flow, removed 12 redundant places. [2022-11-25 16:57:57,917 INFO L231 Difference]: Finished difference. Result has 377 places, 307 transitions, 7201 flow [2022-11-25 16:57:57,917 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7011, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7201, PETRI_PLACES=377, PETRI_TRANSITIONS=307} [2022-11-25 16:57:57,918 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 343 predicate places. [2022-11-25 16:57:57,918 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 307 transitions, 7201 flow [2022-11-25 16:57:57,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:57,918 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:57:57,918 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:57,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-25 16:57:57,918 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:57:57,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:57,919 INFO L85 PathProgramCache]: Analyzing trace with hash -852066770, now seen corresponding path program 5 times [2022-11-25 16:57:57,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:57,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805693832] [2022-11-25 16:57:57,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:57,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:59,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:59,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:59,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805693832] [2022-11-25 16:57:59,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805693832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:59,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:59,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:57:59,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990976062] [2022-11-25 16:57:59,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:59,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 16:57:59,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:59,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 16:57:59,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:58:00,577 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 305 [2022-11-25 16:58:00,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 307 transitions, 7201 flow. Second operand has 14 states, 14 states have (on average 127.14285714285714) internal successors, (1780), 14 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:00,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:00,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 305 [2022-11-25 16:58:00,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:01,729 INFO L130 PetriNetUnfolder]: 425/1326 cut-off events. [2022-11-25 16:58:01,729 INFO L131 PetriNetUnfolder]: For 36640/36640 co-relation queries the response was YES. [2022-11-25 16:58:01,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12132 conditions, 1326 events. 425/1326 cut-off events. For 36640/36640 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10424 event pairs, 277 based on Foata normal form. 1/1327 useless extension candidates. Maximal degree in co-relation 11830. Up to 1190 conditions per place. [2022-11-25 16:58:01,743 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 291 selfloop transitions, 30 changer transitions 0/322 dead transitions. [2022-11-25 16:58:01,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 322 transitions, 7963 flow [2022-11-25 16:58:01,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 16:58:01,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-25 16:58:01,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1690 transitions. [2022-11-25 16:58:01,746 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4262295081967213 [2022-11-25 16:58:01,746 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1690 transitions. [2022-11-25 16:58:01,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1690 transitions. [2022-11-25 16:58:01,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:01,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1690 transitions. [2022-11-25 16:58:01,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:01,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:01,749 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:01,749 INFO L175 Difference]: Start difference. First operand has 377 places, 307 transitions, 7201 flow. Second operand 13 states and 1690 transitions. [2022-11-25 16:58:01,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 322 transitions, 7963 flow [2022-11-25 16:58:01,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 322 transitions, 7803 flow, removed 2 selfloop flow, removed 12 redundant places. [2022-11-25 16:58:01,960 INFO L231 Difference]: Finished difference. Result has 379 places, 310 transitions, 7139 flow [2022-11-25 16:58:01,961 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7041, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=7139, PETRI_PLACES=379, PETRI_TRANSITIONS=310} [2022-11-25 16:58:01,961 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 345 predicate places. [2022-11-25 16:58:01,961 INFO L495 AbstractCegarLoop]: Abstraction has has 379 places, 310 transitions, 7139 flow [2022-11-25 16:58:01,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 127.14285714285714) internal successors, (1780), 14 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:01,962 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:01,962 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:58:01,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-25 16:58:01,962 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:58:01,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:01,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1134356514, now seen corresponding path program 6 times [2022-11-25 16:58:01,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:01,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224747862] [2022-11-25 16:58:01,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:01,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:03,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:03,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:03,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224747862] [2022-11-25 16:58:03,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224747862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:03,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:03,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:58:03,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144444785] [2022-11-25 16:58:03,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:03,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 16:58:03,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:03,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 16:58:03,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:58:05,184 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-25 16:58:05,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 310 transitions, 7139 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:05,185 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:05,185 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-25 16:58:05,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:06,446 INFO L130 PetriNetUnfolder]: 424/1325 cut-off events. [2022-11-25 16:58:06,446 INFO L131 PetriNetUnfolder]: For 36026/36026 co-relation queries the response was YES. [2022-11-25 16:58:06,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12112 conditions, 1325 events. 424/1325 cut-off events. For 36026/36026 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10451 event pairs, 249 based on Foata normal form. 1/1323 useless extension candidates. Maximal degree in co-relation 11808. Up to 854 conditions per place. [2022-11-25 16:58:06,461 INFO L137 encePairwiseOnDemand]: 295/305 looper letters, 241 selfloop transitions, 86 changer transitions 0/328 dead transitions. [2022-11-25 16:58:06,461 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 328 transitions, 7917 flow [2022-11-25 16:58:06,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 16:58:06,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-25 16:58:06,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1713 transitions. [2022-11-25 16:58:06,464 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43203026481715007 [2022-11-25 16:58:06,464 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1713 transitions. [2022-11-25 16:58:06,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1713 transitions. [2022-11-25 16:58:06,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:06,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1713 transitions. [2022-11-25 16:58:06,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 131.76923076923077) internal successors, (1713), 13 states have internal predecessors, (1713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:06,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:06,471 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:06,471 INFO L175 Difference]: Start difference. First operand has 379 places, 310 transitions, 7139 flow. Second operand 13 states and 1713 transitions. [2022-11-25 16:58:06,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 328 transitions, 7917 flow [2022-11-25 16:58:06,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 328 transitions, 7865 flow, removed 6 selfloop flow, removed 9 redundant places. [2022-11-25 16:58:06,612 INFO L231 Difference]: Finished difference. Result has 383 places, 315 transitions, 7342 flow [2022-11-25 16:58:06,612 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7087, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=7342, PETRI_PLACES=383, PETRI_TRANSITIONS=315} [2022-11-25 16:58:06,612 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 349 predicate places. [2022-11-25 16:58:06,613 INFO L495 AbstractCegarLoop]: Abstraction has has 383 places, 315 transitions, 7342 flow [2022-11-25 16:58:06,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:06,613 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:06,613 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:58:06,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-25 16:58:06,613 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:58:06,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:06,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1297251188, now seen corresponding path program 7 times [2022-11-25 16:58:06,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:06,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439586136] [2022-11-25 16:58:06,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:06,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:07,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:07,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:07,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439586136] [2022-11-25 16:58:07,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439586136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:07,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:07,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 16:58:07,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278091489] [2022-11-25 16:58:07,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:07,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 16:58:07,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:07,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 16:58:07,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-25 16:58:09,049 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 305 [2022-11-25 16:58:09,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 315 transitions, 7342 flow. Second operand has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:09,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:09,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 305 [2022-11-25 16:58:09,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:10,706 INFO L130 PetriNetUnfolder]: 424/1328 cut-off events. [2022-11-25 16:58:10,706 INFO L131 PetriNetUnfolder]: For 36843/36843 co-relation queries the response was YES. [2022-11-25 16:58:10,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12238 conditions, 1328 events. 424/1328 cut-off events. For 36843/36843 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10463 event pairs, 261 based on Foata normal form. 2/1327 useless extension candidates. Maximal degree in co-relation 11933. Up to 1058 conditions per place. [2022-11-25 16:58:10,720 INFO L137 encePairwiseOnDemand]: 290/305 looper letters, 240 selfloop transitions, 91 changer transitions 0/332 dead transitions. [2022-11-25 16:58:10,721 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 332 transitions, 8121 flow [2022-11-25 16:58:10,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 16:58:10,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-25 16:58:10,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2295 transitions. [2022-11-25 16:58:10,723 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4180327868852459 [2022-11-25 16:58:10,724 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2295 transitions. [2022-11-25 16:58:10,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2295 transitions. [2022-11-25 16:58:10,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:10,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2295 transitions. [2022-11-25 16:58:10,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 127.5) internal successors, (2295), 18 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:10,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 305.0) internal successors, (5795), 19 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:10,728 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 305.0) internal successors, (5795), 19 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:10,728 INFO L175 Difference]: Start difference. First operand has 383 places, 315 transitions, 7342 flow. Second operand 18 states and 2295 transitions. [2022-11-25 16:58:10,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 332 transitions, 8121 flow [2022-11-25 16:58:10,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 332 transitions, 8007 flow, removed 3 selfloop flow, removed 9 redundant places. [2022-11-25 16:58:10,944 INFO L231 Difference]: Finished difference. Result has 393 places, 321 transitions, 7504 flow [2022-11-25 16:58:10,945 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7230, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7504, PETRI_PLACES=393, PETRI_TRANSITIONS=321} [2022-11-25 16:58:10,945 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 359 predicate places. [2022-11-25 16:58:10,946 INFO L495 AbstractCegarLoop]: Abstraction has has 393 places, 321 transitions, 7504 flow [2022-11-25 16:58:10,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:10,946 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:10,946 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:58:10,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-25 16:58:10,947 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:58:10,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:10,948 INFO L85 PathProgramCache]: Analyzing trace with hash -384085848, now seen corresponding path program 8 times [2022-11-25 16:58:10,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:10,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461600461] [2022-11-25 16:58:10,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:10,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:12,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:12,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:12,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461600461] [2022-11-25 16:58:12,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461600461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:12,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:12,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:58:12,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421852935] [2022-11-25 16:58:12,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:12,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 16:58:12,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:12,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 16:58:12,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:58:13,502 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 305 [2022-11-25 16:58:13,503 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 321 transitions, 7504 flow. Second operand has 14 states, 14 states have (on average 127.14285714285714) internal successors, (1780), 14 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:13,503 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:13,503 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 305 [2022-11-25 16:58:13,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:14,840 INFO L130 PetriNetUnfolder]: 423/1326 cut-off events. [2022-11-25 16:58:14,841 INFO L131 PetriNetUnfolder]: For 37828/37828 co-relation queries the response was YES. [2022-11-25 16:58:14,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12492 conditions, 1326 events. 423/1326 cut-off events. For 37828/37828 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10465 event pairs, 274 based on Foata normal form. 1/1324 useless extension candidates. Maximal degree in co-relation 12216. Up to 1184 conditions per place. [2022-11-25 16:58:14,854 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 300 selfloop transitions, 34 changer transitions 0/335 dead transitions. [2022-11-25 16:58:14,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 335 transitions, 8295 flow [2022-11-25 16:58:14,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:58:14,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-25 16:58:14,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1950 transitions. [2022-11-25 16:58:14,857 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4262295081967213 [2022-11-25 16:58:14,857 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1950 transitions. [2022-11-25 16:58:14,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1950 transitions. [2022-11-25 16:58:14,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:14,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1950 transitions. [2022-11-25 16:58:14,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 130.0) internal successors, (1950), 15 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:14,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:14,861 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:14,861 INFO L175 Difference]: Start difference. First operand has 393 places, 321 transitions, 7504 flow. Second operand 15 states and 1950 transitions. [2022-11-25 16:58:14,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 335 transitions, 8295 flow [2022-11-25 16:58:14,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 335 transitions, 8091 flow, removed 10 selfloop flow, removed 13 redundant places. [2022-11-25 16:58:15,001 INFO L231 Difference]: Finished difference. Result has 396 places, 324 transitions, 7411 flow [2022-11-25 16:58:15,002 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7300, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7411, PETRI_PLACES=396, PETRI_TRANSITIONS=324} [2022-11-25 16:58:15,002 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 362 predicate places. [2022-11-25 16:58:15,002 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 324 transitions, 7411 flow [2022-11-25 16:58:15,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 127.14285714285714) internal successors, (1780), 14 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:15,003 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:15,003 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:58:15,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-25 16:58:15,003 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:58:15,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:15,003 INFO L85 PathProgramCache]: Analyzing trace with hash 274501902, now seen corresponding path program 9 times [2022-11-25 16:58:15,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:15,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248207345] [2022-11-25 16:58:15,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:15,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:16,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:16,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:16,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248207345] [2022-11-25 16:58:16,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248207345] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:16,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:16,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 16:58:16,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866919807] [2022-11-25 16:58:16,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:16,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 16:58:16,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:16,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 16:58:16,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-25 16:58:17,905 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 305 [2022-11-25 16:58:17,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 324 transitions, 7411 flow. Second operand has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:17,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:17,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 305 [2022-11-25 16:58:17,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:19,542 INFO L130 PetriNetUnfolder]: 432/1354 cut-off events. [2022-11-25 16:58:19,542 INFO L131 PetriNetUnfolder]: For 38137/38137 co-relation queries the response was YES. [2022-11-25 16:58:19,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12712 conditions, 1354 events. 432/1354 cut-off events. For 38137/38137 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10772 event pairs, 259 based on Foata normal form. 4/1355 useless extension candidates. Maximal degree in co-relation 12443. Up to 1173 conditions per place. [2022-11-25 16:58:19,557 INFO L137 encePairwiseOnDemand]: 290/305 looper letters, 291 selfloop transitions, 56 changer transitions 0/348 dead transitions. [2022-11-25 16:58:19,557 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 348 transitions, 8363 flow [2022-11-25 16:58:19,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 16:58:19,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-25 16:58:19,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2295 transitions. [2022-11-25 16:58:19,560 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4180327868852459 [2022-11-25 16:58:19,561 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2295 transitions. [2022-11-25 16:58:19,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2295 transitions. [2022-11-25 16:58:19,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:19,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2295 transitions. [2022-11-25 16:58:19,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 127.5) internal successors, (2295), 18 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:19,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 305.0) internal successors, (5795), 19 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:19,568 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 305.0) internal successors, (5795), 19 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:19,569 INFO L175 Difference]: Start difference. First operand has 396 places, 324 transitions, 7411 flow. Second operand 18 states and 2295 transitions. [2022-11-25 16:58:19,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 348 transitions, 8363 flow [2022-11-25 16:58:19,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 348 transitions, 8294 flow, removed 12 selfloop flow, removed 10 redundant places. [2022-11-25 16:58:19,772 INFO L231 Difference]: Finished difference. Result has 409 places, 336 transitions, 7724 flow [2022-11-25 16:58:19,773 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7356, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7724, PETRI_PLACES=409, PETRI_TRANSITIONS=336} [2022-11-25 16:58:19,774 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 375 predicate places. [2022-11-25 16:58:19,774 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 336 transitions, 7724 flow [2022-11-25 16:58:19,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:19,774 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:19,775 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:58:19,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-25 16:58:19,775 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:58:19,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:19,775 INFO L85 PathProgramCache]: Analyzing trace with hash 858351026, now seen corresponding path program 10 times [2022-11-25 16:58:19,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:19,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189192959] [2022-11-25 16:58:19,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:19,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:20,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:20,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:20,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189192959] [2022-11-25 16:58:20,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189192959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:20,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:20,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:58:20,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048870481] [2022-11-25 16:58:20,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:20,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 16:58:20,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:20,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 16:58:20,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:58:22,310 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-25 16:58:22,312 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 336 transitions, 7724 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:22,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:22,312 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-25 16:58:22,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:23,732 INFO L130 PetriNetUnfolder]: 430/1350 cut-off events. [2022-11-25 16:58:23,732 INFO L131 PetriNetUnfolder]: For 39565/39565 co-relation queries the response was YES. [2022-11-25 16:58:23,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13027 conditions, 1350 events. 430/1350 cut-off events. For 39565/39565 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10738 event pairs, 220 based on Foata normal form. 2/1349 useless extension candidates. Maximal degree in co-relation 12751. Up to 570 conditions per place. [2022-11-25 16:58:23,747 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 273 selfloop transitions, 82 changer transitions 0/356 dead transitions. [2022-11-25 16:58:23,747 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 356 transitions, 8603 flow [2022-11-25 16:58:23,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 16:58:23,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 16:58:23,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1839 transitions. [2022-11-25 16:58:23,749 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4306791569086651 [2022-11-25 16:58:23,749 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1839 transitions. [2022-11-25 16:58:23,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1839 transitions. [2022-11-25 16:58:23,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:23,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1839 transitions. [2022-11-25 16:58:23,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 131.35714285714286) internal successors, (1839), 14 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:23,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:23,756 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:23,756 INFO L175 Difference]: Start difference. First operand has 409 places, 336 transitions, 7724 flow. Second operand 14 states and 1839 transitions. [2022-11-25 16:58:23,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 356 transitions, 8603 flow [2022-11-25 16:58:23,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 356 transitions, 8332 flow, removed 22 selfloop flow, removed 10 redundant places. [2022-11-25 16:58:23,925 INFO L231 Difference]: Finished difference. Result has 414 places, 339 transitions, 7683 flow [2022-11-25 16:58:23,926 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7455, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=7683, PETRI_PLACES=414, PETRI_TRANSITIONS=339} [2022-11-25 16:58:23,926 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 380 predicate places. [2022-11-25 16:58:23,926 INFO L495 AbstractCegarLoop]: Abstraction has has 414 places, 339 transitions, 7683 flow [2022-11-25 16:58:23,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:23,927 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:23,927 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:58:23,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-25 16:58:23,927 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:58:23,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:23,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1382297908, now seen corresponding path program 11 times [2022-11-25 16:58:23,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:23,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189494732] [2022-11-25 16:58:23,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:23,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:24,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:24,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:24,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189494732] [2022-11-25 16:58:24,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189494732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:24,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:24,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:58:24,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326120125] [2022-11-25 16:58:24,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:24,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 16:58:24,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:24,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 16:58:24,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:58:26,557 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-25 16:58:26,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 339 transitions, 7683 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:26,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:26,558 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-25 16:58:26,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:29,058 INFO L130 PetriNetUnfolder]: 426/1345 cut-off events. [2022-11-25 16:58:29,058 INFO L131 PetriNetUnfolder]: For 38936/38936 co-relation queries the response was YES. [2022-11-25 16:58:29,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12898 conditions, 1345 events. 426/1345 cut-off events. For 38936/38936 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10708 event pairs, 161 based on Foata normal form. 4/1349 useless extension candidates. Maximal degree in co-relation 12620. Up to 574 conditions per place. [2022-11-25 16:58:29,072 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 188 selfloop transitions, 183 changer transitions 0/372 dead transitions. [2022-11-25 16:58:29,072 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 372 transitions, 8831 flow [2022-11-25 16:58:29,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-25 16:58:29,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-25 16:58:29,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3781 transitions. [2022-11-25 16:58:29,076 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4274731486715659 [2022-11-25 16:58:29,076 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 3781 transitions. [2022-11-25 16:58:29,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 3781 transitions. [2022-11-25 16:58:29,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:29,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 3781 transitions. [2022-11-25 16:58:29,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 130.3793103448276) internal successors, (3781), 29 states have internal predecessors, (3781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:29,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 305.0) internal successors, (9150), 30 states have internal predecessors, (9150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:29,084 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 305.0) internal successors, (9150), 30 states have internal predecessors, (9150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:29,084 INFO L175 Difference]: Start difference. First operand has 414 places, 339 transitions, 7683 flow. Second operand 29 states and 3781 transitions. [2022-11-25 16:58:29,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 372 transitions, 8831 flow [2022-11-25 16:58:29,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 372 transitions, 8669 flow, removed 14 selfloop flow, removed 10 redundant places. [2022-11-25 16:58:29,330 INFO L231 Difference]: Finished difference. Result has 436 places, 347 transitions, 8192 flow [2022-11-25 16:58:29,330 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7525, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=8192, PETRI_PLACES=436, PETRI_TRANSITIONS=347} [2022-11-25 16:58:29,331 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 402 predicate places. [2022-11-25 16:58:29,332 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 347 transitions, 8192 flow [2022-11-25 16:58:29,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:29,332 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:29,332 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:58:29,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-25 16:58:29,333 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:58:29,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:29,333 INFO L85 PathProgramCache]: Analyzing trace with hash 677611604, now seen corresponding path program 12 times [2022-11-25 16:58:29,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:29,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041015198] [2022-11-25 16:58:29,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:29,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:30,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:30,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:30,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041015198] [2022-11-25 16:58:30,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041015198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:30,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:30,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 16:58:30,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150576055] [2022-11-25 16:58:30,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:30,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 16:58:30,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:30,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 16:58:30,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-25 16:58:32,138 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 305 [2022-11-25 16:58:32,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 347 transitions, 8192 flow. Second operand has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:32,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:32,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 305 [2022-11-25 16:58:32,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:33,756 INFO L130 PetriNetUnfolder]: 425/1344 cut-off events. [2022-11-25 16:58:33,756 INFO L131 PetriNetUnfolder]: For 42030/42030 co-relation queries the response was YES. [2022-11-25 16:58:33,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13245 conditions, 1344 events. 425/1344 cut-off events. For 42030/42030 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10653 event pairs, 146 based on Foata normal form. 4/1345 useless extension candidates. Maximal degree in co-relation 12957. Up to 831 conditions per place. [2022-11-25 16:58:33,773 INFO L137 encePairwiseOnDemand]: 289/305 looper letters, 225 selfloop transitions, 141 changer transitions 0/367 dead transitions. [2022-11-25 16:58:33,773 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 367 transitions, 9071 flow [2022-11-25 16:58:33,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 16:58:33,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-25 16:58:33,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2178 transitions. [2022-11-25 16:58:33,775 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4200578592092575 [2022-11-25 16:58:33,776 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2178 transitions. [2022-11-25 16:58:33,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2178 transitions. [2022-11-25 16:58:33,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:33,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2178 transitions. [2022-11-25 16:58:33,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 128.11764705882354) internal successors, (2178), 17 states have internal predecessors, (2178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:33,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 305.0) internal successors, (5490), 18 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:33,783 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 305.0) internal successors, (5490), 18 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:33,783 INFO L175 Difference]: Start difference. First operand has 436 places, 347 transitions, 8192 flow. Second operand 17 states and 2178 transitions. [2022-11-25 16:58:33,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 367 transitions, 9071 flow [2022-11-25 16:58:34,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 367 transitions, 8682 flow, removed 34 selfloop flow, removed 27 redundant places. [2022-11-25 16:58:34,026 INFO L231 Difference]: Finished difference. Result has 427 places, 352 transitions, 8178 flow [2022-11-25 16:58:34,026 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7823, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=8178, PETRI_PLACES=427, PETRI_TRANSITIONS=352} [2022-11-25 16:58:34,027 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 393 predicate places. [2022-11-25 16:58:34,027 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 352 transitions, 8178 flow [2022-11-25 16:58:34,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:34,027 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:34,027 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:58:34,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-25 16:58:34,027 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:58:34,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:34,028 INFO L85 PathProgramCache]: Analyzing trace with hash -953902236, now seen corresponding path program 13 times [2022-11-25 16:58:34,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:34,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103345363] [2022-11-25 16:58:34,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:34,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:34,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:34,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:34,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103345363] [2022-11-25 16:58:34,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103345363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:34,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:34,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:58:34,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268143164] [2022-11-25 16:58:34,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:34,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 16:58:34,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:34,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 16:58:34,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:58:36,628 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-25 16:58:36,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 352 transitions, 8178 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:36,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:36,630 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-25 16:58:36,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:37,778 INFO L130 PetriNetUnfolder]: 424/1342 cut-off events. [2022-11-25 16:58:37,778 INFO L131 PetriNetUnfolder]: For 41821/41821 co-relation queries the response was YES. [2022-11-25 16:58:37,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13186 conditions, 1342 events. 424/1342 cut-off events. For 41821/41821 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10638 event pairs, 233 based on Foata normal form. 1/1343 useless extension candidates. Maximal degree in co-relation 12897. Up to 1014 conditions per place. [2022-11-25 16:58:37,795 INFO L137 encePairwiseOnDemand]: 291/305 looper letters, 315 selfloop transitions, 48 changer transitions 0/364 dead transitions. [2022-11-25 16:58:37,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 364 transitions, 8979 flow [2022-11-25 16:58:37,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 16:58:37,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 16:58:37,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1837 transitions. [2022-11-25 16:58:37,797 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43021077283372366 [2022-11-25 16:58:37,797 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1837 transitions. [2022-11-25 16:58:37,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1837 transitions. [2022-11-25 16:58:37,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:37,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1837 transitions. [2022-11-25 16:58:37,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 131.21428571428572) internal successors, (1837), 14 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:37,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:37,804 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:37,805 INFO L175 Difference]: Start difference. First operand has 427 places, 352 transitions, 8178 flow. Second operand 14 states and 1837 transitions. [2022-11-25 16:58:37,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 364 transitions, 8979 flow [2022-11-25 16:58:38,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 364 transitions, 8744 flow, removed 7 selfloop flow, removed 12 redundant places. [2022-11-25 16:58:38,009 INFO L231 Difference]: Finished difference. Result has 429 places, 353 transitions, 8055 flow [2022-11-25 16:58:38,010 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7943, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8055, PETRI_PLACES=429, PETRI_TRANSITIONS=353} [2022-11-25 16:58:38,010 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 395 predicate places. [2022-11-25 16:58:38,010 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 353 transitions, 8055 flow [2022-11-25 16:58:38,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:38,010 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:38,011 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:58:38,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-25 16:58:38,011 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:58:38,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:38,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1068872756, now seen corresponding path program 14 times [2022-11-25 16:58:38,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:38,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630435996] [2022-11-25 16:58:38,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:38,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:38,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:38,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:38,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630435996] [2022-11-25 16:58:38,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630435996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:38,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:38,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:58:38,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528362921] [2022-11-25 16:58:38,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:38,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 16:58:38,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:38,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 16:58:38,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:58:40,335 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-25 16:58:40,336 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 353 transitions, 8055 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:40,336 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:40,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-25 16:58:40,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:42,089 INFO L130 PetriNetUnfolder]: 416/1327 cut-off events. [2022-11-25 16:58:42,089 INFO L131 PetriNetUnfolder]: For 40507/40507 co-relation queries the response was YES. [2022-11-25 16:58:42,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12819 conditions, 1327 events. 416/1327 cut-off events. For 40507/40507 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10581 event pairs, 126 based on Foata normal form. 8/1332 useless extension candidates. Maximal degree in co-relation 12540. Up to 554 conditions per place. [2022-11-25 16:58:42,109 INFO L137 encePairwiseOnDemand]: 291/305 looper letters, 131 selfloop transitions, 244 changer transitions 0/376 dead transitions. [2022-11-25 16:58:42,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 376 transitions, 9070 flow [2022-11-25 16:58:42,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 16:58:42,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-25 16:58:42,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2861 transitions. [2022-11-25 16:58:42,113 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4263785394932936 [2022-11-25 16:58:42,113 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2861 transitions. [2022-11-25 16:58:42,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2861 transitions. [2022-11-25 16:58:42,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:42,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2861 transitions. [2022-11-25 16:58:42,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 130.04545454545453) internal successors, (2861), 22 states have internal predecessors, (2861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:42,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 305.0) internal successors, (7015), 23 states have internal predecessors, (7015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:42,123 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 305.0) internal successors, (7015), 23 states have internal predecessors, (7015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:42,123 INFO L175 Difference]: Start difference. First operand has 429 places, 353 transitions, 8055 flow. Second operand 22 states and 2861 transitions. [2022-11-25 16:58:42,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 376 transitions, 9070 flow [2022-11-25 16:58:42,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 376 transitions, 8977 flow, removed 3 selfloop flow, removed 11 redundant places. [2022-11-25 16:58:42,352 INFO L231 Difference]: Finished difference. Result has 441 places, 357 transitions, 8617 flow [2022-11-25 16:58:42,352 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7962, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=241, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=8617, PETRI_PLACES=441, PETRI_TRANSITIONS=357} [2022-11-25 16:58:42,352 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 407 predicate places. [2022-11-25 16:58:42,352 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 357 transitions, 8617 flow [2022-11-25 16:58:42,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:42,353 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:42,353 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:58:42,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-25 16:58:42,353 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:58:42,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:42,354 INFO L85 PathProgramCache]: Analyzing trace with hash 822683058, now seen corresponding path program 15 times [2022-11-25 16:58:42,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:42,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581357169] [2022-11-25 16:58:42,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:42,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:43,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:43,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:43,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581357169] [2022-11-25 16:58:43,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581357169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:43,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:43,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:58:43,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751205680] [2022-11-25 16:58:43,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:43,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 16:58:43,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:43,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 16:58:43,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:58:44,767 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-25 16:58:44,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 357 transitions, 8617 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:44,768 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:44,768 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-25 16:58:44,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:45,963 INFO L130 PetriNetUnfolder]: 414/1322 cut-off events. [2022-11-25 16:58:45,963 INFO L131 PetriNetUnfolder]: For 41792/41792 co-relation queries the response was YES. [2022-11-25 16:58:45,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13273 conditions, 1322 events. 414/1322 cut-off events. For 41792/41792 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10516 event pairs, 102 based on Foata normal form. 2/1321 useless extension candidates. Maximal degree in co-relation 12980. Up to 785 conditions per place. [2022-11-25 16:58:45,981 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 218 selfloop transitions, 146 changer transitions 0/365 dead transitions. [2022-11-25 16:58:45,981 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 365 transitions, 9403 flow [2022-11-25 16:58:45,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 16:58:45,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 16:58:45,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1828 transitions. [2022-11-25 16:58:45,983 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4281030444964871 [2022-11-25 16:58:45,983 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1828 transitions. [2022-11-25 16:58:45,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1828 transitions. [2022-11-25 16:58:45,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:45,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1828 transitions. [2022-11-25 16:58:45,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 130.57142857142858) internal successors, (1828), 14 states have internal predecessors, (1828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:45,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:45,987 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:45,987 INFO L175 Difference]: Start difference. First operand has 441 places, 357 transitions, 8617 flow. Second operand 14 states and 1828 transitions. [2022-11-25 16:58:45,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 365 transitions, 9403 flow [2022-11-25 16:58:46,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 365 transitions, 8960 flow, removed 51 selfloop flow, removed 19 redundant places. [2022-11-25 16:58:46,193 INFO L231 Difference]: Finished difference. Result has 436 places, 358 transitions, 8501 flow [2022-11-25 16:58:46,194 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=8178, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=145, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8501, PETRI_PLACES=436, PETRI_TRANSITIONS=358} [2022-11-25 16:58:46,194 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 402 predicate places. [2022-11-25 16:58:46,194 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 358 transitions, 8501 flow [2022-11-25 16:58:46,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:46,195 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:46,195 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:58:46,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-25 16:58:46,195 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:58:46,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:46,195 INFO L85 PathProgramCache]: Analyzing trace with hash 474445714, now seen corresponding path program 16 times [2022-11-25 16:58:46,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:46,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448320333] [2022-11-25 16:58:46,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:46,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:47,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:47,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:47,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448320333] [2022-11-25 16:58:47,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448320333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:47,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:47,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 16:58:47,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48487812] [2022-11-25 16:58:47,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:47,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 16:58:47,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:47,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 16:58:47,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-25 16:58:48,861 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 305 [2022-11-25 16:58:48,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 358 transitions, 8501 flow. Second operand has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:48,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:48,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 305 [2022-11-25 16:58:48,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:50,823 INFO L130 PetriNetUnfolder]: 416/1330 cut-off events. [2022-11-25 16:58:50,823 INFO L131 PetriNetUnfolder]: For 41300/41300 co-relation queries the response was YES. [2022-11-25 16:58:50,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13259 conditions, 1330 events. 416/1330 cut-off events. For 41300/41300 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10577 event pairs, 118 based on Foata normal form. 2/1332 useless extension candidates. Maximal degree in co-relation 12973. Up to 682 conditions per place. [2022-11-25 16:58:50,838 INFO L137 encePairwiseOnDemand]: 290/305 looper letters, 192 selfloop transitions, 186 changer transitions 0/379 dead transitions. [2022-11-25 16:58:50,838 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 379 transitions, 9441 flow [2022-11-25 16:58:50,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 16:58:50,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-25 16:58:50,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2546 transitions. [2022-11-25 16:58:50,841 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41737704918032786 [2022-11-25 16:58:50,841 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2546 transitions. [2022-11-25 16:58:50,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2546 transitions. [2022-11-25 16:58:50,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:50,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2546 transitions. [2022-11-25 16:58:50,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 127.3) internal successors, (2546), 20 states have internal predecessors, (2546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:50,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 305.0) internal successors, (6405), 21 states have internal predecessors, (6405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:50,846 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 305.0) internal successors, (6405), 21 states have internal predecessors, (6405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:50,846 INFO L175 Difference]: Start difference. First operand has 436 places, 358 transitions, 8501 flow. Second operand 20 states and 2546 transitions. [2022-11-25 16:58:50,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 379 transitions, 9441 flow [2022-11-25 16:58:51,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 379 transitions, 9203 flow, removed 1 selfloop flow, removed 11 redundant places. [2022-11-25 16:58:51,034 INFO L231 Difference]: Finished difference. Result has 446 places, 367 transitions, 8788 flow [2022-11-25 16:58:51,034 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=8263, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=179, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8788, PETRI_PLACES=446, PETRI_TRANSITIONS=367} [2022-11-25 16:58:51,035 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 412 predicate places. [2022-11-25 16:58:51,035 INFO L495 AbstractCegarLoop]: Abstraction has has 446 places, 367 transitions, 8788 flow [2022-11-25 16:58:51,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:51,035 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:51,035 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:58:51,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-11-25 16:58:51,035 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:58:51,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:51,036 INFO L85 PathProgramCache]: Analyzing trace with hash 407247634, now seen corresponding path program 17 times [2022-11-25 16:58:51,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:51,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902378500] [2022-11-25 16:58:51,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:51,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:52,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:52,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:52,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902378500] [2022-11-25 16:58:52,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902378500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:52,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:52,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:58:52,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750001445] [2022-11-25 16:58:52,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:52,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 16:58:52,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:52,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 16:58:52,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:58:53,300 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-25 16:58:53,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 367 transitions, 8788 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:53,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:53,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-25 16:58:53,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:55,096 INFO L130 PetriNetUnfolder]: 430/1374 cut-off events. [2022-11-25 16:58:55,096 INFO L131 PetriNetUnfolder]: For 43149/43149 co-relation queries the response was YES. [2022-11-25 16:58:55,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14132 conditions, 1374 events. 430/1374 cut-off events. For 43149/43149 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 11070 event pairs, 77 based on Foata normal form. 1/1372 useless extension candidates. Maximal degree in co-relation 13831. Up to 520 conditions per place. [2022-11-25 16:58:55,113 INFO L137 encePairwiseOnDemand]: 292/305 looper letters, 97 selfloop transitions, 295 changer transitions 0/393 dead transitions. [2022-11-25 16:58:55,113 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 393 transitions, 9995 flow [2022-11-25 16:58:55,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 16:58:55,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-25 16:58:55,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2724 transitions. [2022-11-25 16:58:55,116 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4252927400468384 [2022-11-25 16:58:55,116 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2724 transitions. [2022-11-25 16:58:55,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2724 transitions. [2022-11-25 16:58:55,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:55,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2724 transitions. [2022-11-25 16:58:55,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 129.71428571428572) internal successors, (2724), 21 states have internal predecessors, (2724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:55,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 305.0) internal successors, (6710), 22 states have internal predecessors, (6710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:55,121 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 305.0) internal successors, (6710), 22 states have internal predecessors, (6710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:55,121 INFO L175 Difference]: Start difference. First operand has 446 places, 367 transitions, 8788 flow. Second operand 21 states and 2724 transitions. [2022-11-25 16:58:55,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 393 transitions, 9995 flow [2022-11-25 16:58:55,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 393 transitions, 9682 flow, removed 6 selfloop flow, removed 16 redundant places. [2022-11-25 16:58:55,333 INFO L231 Difference]: Finished difference. Result has 453 places, 382 transitions, 9543 flow [2022-11-25 16:58:55,333 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=8481, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=280, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=9543, PETRI_PLACES=453, PETRI_TRANSITIONS=382} [2022-11-25 16:58:55,334 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 419 predicate places. [2022-11-25 16:58:55,334 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 382 transitions, 9543 flow [2022-11-25 16:58:55,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:55,334 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:55,335 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:58:55,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-11-25 16:58:55,335 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:58:55,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:55,335 INFO L85 PathProgramCache]: Analyzing trace with hash 955606315, now seen corresponding path program 1 times [2022-11-25 16:58:55,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:55,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17479159] [2022-11-25 16:58:55,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:55,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:56,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:56,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:56,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17479159] [2022-11-25 16:58:56,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17479159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:56,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:56,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:58:56,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628161555] [2022-11-25 16:58:56,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:56,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 16:58:56,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:56,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 16:58:56,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:58:57,696 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 305 [2022-11-25 16:58:57,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 382 transitions, 9543 flow. Second operand has 14 states, 14 states have (on average 125.14285714285714) internal successors, (1752), 14 states have internal predecessors, (1752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:57,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:57,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 305 [2022-11-25 16:58:57,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:59,045 INFO L130 PetriNetUnfolder]: 456/1451 cut-off events. [2022-11-25 16:58:59,045 INFO L131 PetriNetUnfolder]: For 49458/49458 co-relation queries the response was YES. [2022-11-25 16:58:59,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15635 conditions, 1451 events. 456/1451 cut-off events. For 49458/49458 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 11858 event pairs, 90 based on Foata normal form. 4/1452 useless extension candidates. Maximal degree in co-relation 15312. Up to 514 conditions per place. [2022-11-25 16:58:59,063 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 263 selfloop transitions, 143 changer transitions 0/407 dead transitions. [2022-11-25 16:58:59,064 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 407 transitions, 10710 flow [2022-11-25 16:58:59,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 16:58:59,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-25 16:58:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1668 transitions. [2022-11-25 16:58:59,066 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42068095838587644 [2022-11-25 16:58:59,066 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1668 transitions. [2022-11-25 16:58:59,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1668 transitions. [2022-11-25 16:58:59,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:59,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1668 transitions. [2022-11-25 16:58:59,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 128.30769230769232) internal successors, (1668), 13 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:59,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:59,069 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:59,069 INFO L175 Difference]: Start difference. First operand has 453 places, 382 transitions, 9543 flow. Second operand 13 states and 1668 transitions. [2022-11-25 16:58:59,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 407 transitions, 10710 flow [2022-11-25 16:58:59,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 407 transitions, 10235 flow, removed 25 selfloop flow, removed 22 redundant places. [2022-11-25 16:58:59,306 INFO L231 Difference]: Finished difference. Result has 441 places, 383 transitions, 9520 flow [2022-11-25 16:58:59,306 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=8988, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=9520, PETRI_PLACES=441, PETRI_TRANSITIONS=383} [2022-11-25 16:58:59,307 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 407 predicate places. [2022-11-25 16:58:59,307 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 383 transitions, 9520 flow [2022-11-25 16:58:59,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 125.14285714285714) internal successors, (1752), 14 states have internal predecessors, (1752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:59,307 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:59,307 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:58:59,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-25 16:58:59,307 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:58:59,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:59,308 INFO L85 PathProgramCache]: Analyzing trace with hash -804982053, now seen corresponding path program 1 times [2022-11-25 16:58:59,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:59,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700611228] [2022-11-25 16:58:59,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:59,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:59,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:59,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:59,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700611228] [2022-11-25 16:58:59,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700611228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:59,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:59,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:58:59,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410575683] [2022-11-25 16:58:59,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:59,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:58:59,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:59,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:58:59,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:58:59,995 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 305 [2022-11-25 16:58:59,996 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 383 transitions, 9520 flow. Second operand has 7 states, 7 states have (on average 136.42857142857142) internal successors, (955), 7 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:59,996 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:59,996 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 305 [2022-11-25 16:58:59,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:59:00,713 INFO L130 PetriNetUnfolder]: 416/1503 cut-off events. [2022-11-25 16:59:00,714 INFO L131 PetriNetUnfolder]: For 57749/57749 co-relation queries the response was YES. [2022-11-25 16:59:00,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14365 conditions, 1503 events. 416/1503 cut-off events. For 57749/57749 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 13101 event pairs, 55 based on Foata normal form. 90/1593 useless extension candidates. Maximal degree in co-relation 14084. Up to 560 conditions per place. [2022-11-25 16:59:00,730 INFO L137 encePairwiseOnDemand]: 298/305 looper letters, 177 selfloop transitions, 55 changer transitions 152/385 dead transitions. [2022-11-25 16:59:00,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 385 transitions, 9907 flow [2022-11-25 16:59:00,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 16:59:00,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 16:59:00,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 981 transitions. [2022-11-25 16:59:00,732 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4594847775175644 [2022-11-25 16:59:00,732 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 981 transitions. [2022-11-25 16:59:00,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 981 transitions. [2022-11-25 16:59:00,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:59:00,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 981 transitions. [2022-11-25 16:59:00,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 140.14285714285714) internal successors, (981), 7 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:00,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 305.0) internal successors, (2440), 8 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:00,734 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 305.0) internal successors, (2440), 8 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:00,734 INFO L175 Difference]: Start difference. First operand has 441 places, 383 transitions, 9520 flow. Second operand 7 states and 981 transitions. [2022-11-25 16:59:00,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 385 transitions, 9907 flow [2022-11-25 16:59:00,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 385 transitions, 9441 flow, removed 25 selfloop flow, removed 20 redundant places. [2022-11-25 16:59:00,946 INFO L231 Difference]: Finished difference. Result has 429 places, 228 transitions, 5344 flow [2022-11-25 16:59:00,947 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=8610, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5344, PETRI_PLACES=429, PETRI_TRANSITIONS=228} [2022-11-25 16:59:00,947 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 395 predicate places. [2022-11-25 16:59:00,947 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 228 transitions, 5344 flow [2022-11-25 16:59:00,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 136.42857142857142) internal successors, (955), 7 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:00,947 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:59:00,947 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:00,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-11-25 16:59:00,948 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:59:00,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:00,948 INFO L85 PathProgramCache]: Analyzing trace with hash -2017073940, now seen corresponding path program 18 times [2022-11-25 16:59:00,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:00,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196905750] [2022-11-25 16:59:00,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:00,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:02,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:02,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:02,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196905750] [2022-11-25 16:59:02,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196905750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:02,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:02,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:59:02,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916469541] [2022-11-25 16:59:02,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:02,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 16:59:02,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:02,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 16:59:02,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:59:03,413 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-25 16:59:03,414 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 228 transitions, 5344 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:03,414 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:59:03,414 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-25 16:59:03,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:59:04,527 INFO L130 PetriNetUnfolder]: 175/832 cut-off events. [2022-11-25 16:59:04,527 INFO L131 PetriNetUnfolder]: For 23689/23689 co-relation queries the response was YES. [2022-11-25 16:59:04,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8058 conditions, 832 events. 175/832 cut-off events. For 23689/23689 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 6706 event pairs, 78 based on Foata normal form. 1/833 useless extension candidates. Maximal degree in co-relation 7935. Up to 414 conditions per place. [2022-11-25 16:59:04,536 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 113 selfloop transitions, 119 changer transitions 0/233 dead transitions. [2022-11-25 16:59:04,536 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 233 transitions, 5871 flow [2022-11-25 16:59:04,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:59:04,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-25 16:59:04,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1948 transitions. [2022-11-25 16:59:04,538 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42579234972677593 [2022-11-25 16:59:04,538 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1948 transitions. [2022-11-25 16:59:04,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1948 transitions. [2022-11-25 16:59:04,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:59:04,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1948 transitions. [2022-11-25 16:59:04,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 129.86666666666667) internal successors, (1948), 15 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:04,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:04,542 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:04,542 INFO L175 Difference]: Start difference. First operand has 429 places, 228 transitions, 5344 flow. Second operand 15 states and 1948 transitions. [2022-11-25 16:59:04,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 233 transitions, 5871 flow [2022-11-25 16:59:04,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 233 transitions, 5367 flow, removed 67 selfloop flow, removed 50 redundant places. [2022-11-25 16:59:04,630 INFO L231 Difference]: Finished difference. Result has 362 places, 229 transitions, 5140 flow [2022-11-25 16:59:04,631 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4868, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=5140, PETRI_PLACES=362, PETRI_TRANSITIONS=229} [2022-11-25 16:59:04,631 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 328 predicate places. [2022-11-25 16:59:04,631 INFO L495 AbstractCegarLoop]: Abstraction has has 362 places, 229 transitions, 5140 flow [2022-11-25 16:59:04,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:04,631 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:59:04,631 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:04,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-11-25 16:59:04,632 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:59:04,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:04,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1111866945, now seen corresponding path program 2 times [2022-11-25 16:59:04,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:04,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884231813] [2022-11-25 16:59:04,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:04,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:05,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:05,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:05,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884231813] [2022-11-25 16:59:05,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884231813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:05,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:05,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:59:05,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637850652] [2022-11-25 16:59:05,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:05,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:59:05,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:05,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:59:05,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:59:05,275 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 305 [2022-11-25 16:59:05,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 229 transitions, 5140 flow. Second operand has 7 states, 7 states have (on average 135.42857142857142) internal successors, (948), 7 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:05,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:59:05,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 305 [2022-11-25 16:59:05,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:59:05,781 INFO L130 PetriNetUnfolder]: 154/797 cut-off events. [2022-11-25 16:59:05,781 INFO L131 PetriNetUnfolder]: For 21593/21593 co-relation queries the response was YES. [2022-11-25 16:59:05,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6546 conditions, 797 events. 154/797 cut-off events. For 21593/21593 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 6619 event pairs, 15 based on Foata normal form. 42/839 useless extension candidates. Maximal degree in co-relation 6453. Up to 351 conditions per place. [2022-11-25 16:59:05,788 INFO L137 encePairwiseOnDemand]: 297/305 looper letters, 86 selfloop transitions, 35 changer transitions 110/232 dead transitions. [2022-11-25 16:59:05,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 232 transitions, 5320 flow [2022-11-25 16:59:05,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 16:59:05,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 16:59:05,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1105 transitions. [2022-11-25 16:59:05,790 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45286885245901637 [2022-11-25 16:59:05,790 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1105 transitions. [2022-11-25 16:59:05,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1105 transitions. [2022-11-25 16:59:05,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:59:05,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1105 transitions. [2022-11-25 16:59:05,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 138.125) internal successors, (1105), 8 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:05,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 305.0) internal successors, (2745), 9 states have internal predecessors, (2745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:05,792 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 305.0) internal successors, (2745), 9 states have internal predecessors, (2745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:05,792 INFO L175 Difference]: Start difference. First operand has 362 places, 229 transitions, 5140 flow. Second operand 8 states and 1105 transitions. [2022-11-25 16:59:05,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 232 transitions, 5320 flow [2022-11-25 16:59:05,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 232 transitions, 4691 flow, removed 1 selfloop flow, removed 28 redundant places. [2022-11-25 16:59:05,847 INFO L231 Difference]: Finished difference. Result has 340 places, 113 transitions, 2130 flow [2022-11-25 16:59:05,848 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=3903, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2130, PETRI_PLACES=340, PETRI_TRANSITIONS=113} [2022-11-25 16:59:05,848 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 306 predicate places. [2022-11-25 16:59:05,848 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 113 transitions, 2130 flow [2022-11-25 16:59:05,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 135.42857142857142) internal successors, (948), 7 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:05,849 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:59:05,849 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:05,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-11-25 16:59:05,849 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 16:59:05,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:05,850 INFO L85 PathProgramCache]: Analyzing trace with hash 509266329, now seen corresponding path program 3 times [2022-11-25 16:59:05,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:05,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678794661] [2022-11-25 16:59:05,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:05,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:06,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:06,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:06,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678794661] [2022-11-25 16:59:06,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678794661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:06,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:06,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:59:06,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451483196] [2022-11-25 16:59:06,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:06,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:59:06,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:06,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:59:06,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:59:06,437 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 305 [2022-11-25 16:59:06,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 113 transitions, 2130 flow. Second operand has 7 states, 7 states have (on average 136.42857142857142) internal successors, (955), 7 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:06,438 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:59:06,438 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 305 [2022-11-25 16:59:06,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:59:06,692 INFO L130 PetriNetUnfolder]: 70/317 cut-off events. [2022-11-25 16:59:06,692 INFO L131 PetriNetUnfolder]: For 7676/7676 co-relation queries the response was YES. [2022-11-25 16:59:06,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2600 conditions, 317 events. 70/317 cut-off events. For 7676/7676 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1796 event pairs, 8 based on Foata normal form. 42/359 useless extension candidates. Maximal degree in co-relation 2513. Up to 123 conditions per place. [2022-11-25 16:59:06,694 INFO L137 encePairwiseOnDemand]: 299/305 looper letters, 0 selfloop transitions, 0 changer transitions 107/107 dead transitions. [2022-11-25 16:59:06,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 107 transitions, 2069 flow [2022-11-25 16:59:06,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 16:59:06,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 16:59:06,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 964 transitions. [2022-11-25 16:59:06,696 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45152224824355974 [2022-11-25 16:59:06,696 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 964 transitions. [2022-11-25 16:59:06,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 964 transitions. [2022-11-25 16:59:06,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:59:06,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 964 transitions. [2022-11-25 16:59:06,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 137.71428571428572) internal successors, (964), 7 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:06,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 305.0) internal successors, (2440), 8 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:06,698 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 305.0) internal successors, (2440), 8 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:06,698 INFO L175 Difference]: Start difference. First operand has 340 places, 113 transitions, 2130 flow. Second operand 7 states and 964 transitions. [2022-11-25 16:59:06,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 107 transitions, 2069 flow [2022-11-25 16:59:06,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 107 transitions, 1387 flow, removed 13 selfloop flow, removed 79 redundant places. [2022-11-25 16:59:06,730 INFO L231 Difference]: Finished difference. Result has 180 places, 0 transitions, 0 flow [2022-11-25 16:59:06,730 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=1169, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=180, PETRI_TRANSITIONS=0} [2022-11-25 16:59:06,730 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 146 predicate places. [2022-11-25 16:59:06,731 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 0 transitions, 0 flow [2022-11-25 16:59:06,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 136.42857142857142) internal successors, (955), 7 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:06,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2022-11-25 16:59:06,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2022-11-25 16:59:06,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-25 16:59:06,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-25 16:59:06,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-25 16:59:06,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-25 16:59:06,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-25 16:59:06,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-25 16:59:06,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-11-25 16:59:06,749 INFO L445 BasicCegarLoop]: Path program histogram: [18, 17, 14, 6, 4, 3, 3, 2, 1, 1, 1, 1, 1] [2022-11-25 16:59:06,755 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 16:59:06,755 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:59:06,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:59:06 BasicIcfg [2022-11-25 16:59:06,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:59:06,760 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:59:06,760 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:59:06,760 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:59:06,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:54:20" (3/4) ... [2022-11-25 16:59:06,763 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 16:59:06,769 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2022-11-25 16:59:06,778 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2022-11-25 16:59:06,778 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-25 16:59:06,779 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 16:59:06,779 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 16:59:06,838 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eceae23-2f84-4556-b87f-0132e5cd9a6e/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 16:59:06,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:59:06,839 INFO L158 Benchmark]: Toolchain (without parser) took 289151.93ms. Allocated memory was 130.0MB in the beginning and 1.0GB in the end (delta: 880.8MB). Free memory was 60.6MB in the beginning and 949.8MB in the end (delta: -889.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:59:06,840 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:59:06,840 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1172.96ms. Allocated memory was 130.0MB in the beginning and 174.1MB in the end (delta: 44.0MB). Free memory was 60.4MB in the beginning and 100.2MB in the end (delta: -39.8MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2022-11-25 16:59:06,840 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.25ms. Allocated memory is still 174.1MB. Free memory was 100.2MB in the beginning and 97.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 16:59:06,841 INFO L158 Benchmark]: Boogie Preprocessor took 75.63ms. Allocated memory is still 174.1MB. Free memory was 97.1MB in the beginning and 94.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:59:06,842 INFO L158 Benchmark]: RCFGBuilder took 1029.36ms. Allocated memory is still 174.1MB. Free memory was 93.9MB in the beginning and 126.9MB in the end (delta: -33.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 16:59:06,842 INFO L158 Benchmark]: TraceAbstraction took 286683.22ms. Allocated memory was 174.1MB in the beginning and 1.0GB in the end (delta: 836.8MB). Free memory was 126.9MB in the beginning and 952.9MB in the end (delta: -826.1MB). Peak memory consumption was 610.5MB. Max. memory is 16.1GB. [2022-11-25 16:59:06,842 INFO L158 Benchmark]: Witness Printer took 78.74ms. Allocated memory is still 1.0GB. Free memory was 952.9MB in the beginning and 949.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:59:06,845 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1172.96ms. Allocated memory was 130.0MB in the beginning and 174.1MB in the end (delta: 44.0MB). Free memory was 60.4MB in the beginning and 100.2MB in the end (delta: -39.8MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.25ms. Allocated memory is still 174.1MB. Free memory was 100.2MB in the beginning and 97.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.63ms. Allocated memory is still 174.1MB. Free memory was 97.1MB in the beginning and 94.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1029.36ms. Allocated memory is still 174.1MB. Free memory was 93.9MB in the beginning and 126.9MB in the end (delta: -33.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 286683.22ms. Allocated memory was 174.1MB in the beginning and 1.0GB in the end (delta: 836.8MB). Free memory was 126.9MB in the beginning and 952.9MB in the end (delta: -826.1MB). Peak memory consumption was 610.5MB. Max. memory is 16.1GB. * Witness Printer took 78.74ms. Allocated memory is still 1.0GB. Free memory was 952.9MB in the beginning and 949.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 64.0s, 144 PlacesBefore, 34 PlacesAfterwards, 139 TransitionsBefore, 27 TransitionsAfterwards, 3780 CoEnabledTransitionPairs, 8 FixpointIterations, 44 TrivialSequentialCompositions, 75 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 132 TotalNumberOfCompositions, 10044 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4844, independent: 4496, independent conditional: 0, independent unconditional: 4496, dependent: 253, dependent conditional: 0, dependent unconditional: 253, unknown: 95, unknown conditional: 0, unknown unconditional: 95] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2840, independent: 2761, independent conditional: 0, independent unconditional: 2761, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 25, unknown conditional: 0, unknown unconditional: 25] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2840, independent: 2718, independent conditional: 0, independent unconditional: 2718, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 122, independent: 43, independent conditional: 0, independent unconditional: 43, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 25, unknown conditional: 0, unknown unconditional: 25] , SemanticIndependenceRelation.Query Time [ms]: [ total: 53770, independent: 251, independent conditional: 0, independent unconditional: 251, dependent: 582, dependent conditional: 0, dependent unconditional: 582, unknown: 52938, unknown conditional: 0, unknown unconditional: 52938] ], Cache Queries: [ total: 4844, independent: 1735, independent conditional: 0, independent unconditional: 1735, dependent: 199, dependent conditional: 0, dependent unconditional: 199, unknown: 2910, unknown conditional: 0, unknown unconditional: 2910] , Statistics on independence cache: Total cache size (in pairs): 134, Positive cache size: 116, Positive conditional cache size: 0, Positive unconditional cache size: 116, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 11, Unknown conditional cache size: 0, Unknown unconditional cache size: 11 - PositiveResult [Line: 1700]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1700]: 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, 185 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: 286.5s, OverallIterations: 72, TraceHistogramMax: 1, PathProgramHistogramMax: 18, EmptinessCheckTime: 0.0s, AutomataDifference: 156.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 64.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25016 SdHoareTripleChecker+Valid, 101.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21250 mSDsluCounter, 25067 SdHoareTripleChecker+Invalid, 89.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24445 mSDsCounter, 3318 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 111720 IncrementalHoareTripleChecker+Invalid, 115038 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3318 mSolverCounterUnsat, 622 mSDtfsCounter, 111720 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1440 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 1332 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3714 ImplicationChecksByTransitivity, 38.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9543occurred in iteration=67, InterpolantAutomatonStates: 972, 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: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 63.1s InterpolantComputationTime, 1015 NumberOfCodeBlocks, 1015 NumberOfCodeBlocksAsserted, 72 NumberOfCheckSat, 943 ConstructedInterpolants, 0 QuantifiedInterpolants, 19598 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 72 InterpolantComputations, 72 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! [2022-11-25 16:59:06,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eceae23-2f84-4556-b87f-0132e5cd9a6e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE