./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 e04fb08f 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_5b124e0b-a05d-4342-97b7-7c30c1007610/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b124e0b-a05d-4342-97b7-7c30c1007610/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b124e0b-a05d-4342-97b7-7c30c1007610/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b124e0b-a05d-4342-97b7-7c30c1007610/bin/uautomizer-tPACEb0tL8/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_5b124e0b-a05d-4342-97b7-7c30c1007610/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b124e0b-a05d-4342-97b7-7c30c1007610/bin/uautomizer-tPACEb0tL8 --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-e04fb08 [2022-11-16 11:31:58,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:31:58,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:31:58,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:31:58,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:31:58,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:31:58,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:31:58,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:31:58,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:31:58,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:31:58,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:31:58,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:31:58,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:31:58,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:31:58,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:31:58,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:31:58,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:31:58,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:31:58,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:31:58,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:31:58,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:31:58,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:31:58,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:31:58,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:31:58,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:31:58,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:31:58,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:31:58,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:31:58,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:31:58,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:31:58,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:31:58,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:31:58,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:31:58,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:31:58,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:31:58,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:31:58,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:31:58,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:31:58,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:31:58,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:31:58,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:31:58,639 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b124e0b-a05d-4342-97b7-7c30c1007610/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:31:58,685 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:31:58,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:31:58,686 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:31:58,686 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:31:58,687 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:31:58,688 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:31:58,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:31:58,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:31:58,689 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:31:58,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:31:58,690 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:31:58,690 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:31:58,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:31:58,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:31:58,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:31:58,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:31:58,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:31:58,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:31:58,692 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:31:58,692 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:31:58,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:31:58,692 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:31:58,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:31:58,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:31:58,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:31:58,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:31:58,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:31:58,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:31:58,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:31:58,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:31:58,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:31:58,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:31:58,695 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:31:58,695 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:31:58,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:31:58,696 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b124e0b-a05d-4342-97b7-7c30c1007610/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b124e0b-a05d-4342-97b7-7c30c1007610/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2022-11-16 11:31:59,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:31:59,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:31:59,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:31:59,108 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:31:59,109 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:31:59,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b124e0b-a05d-4342-97b7-7c30c1007610/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-16 11:31:59,185 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b124e0b-a05d-4342-97b7-7c30c1007610/bin/uautomizer-tPACEb0tL8/data/dfb9845a0/238a043f59e247b59d52d2969ba6f78b/FLAG2b197b791 [2022-11-16 11:31:59,821 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:31:59,827 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b124e0b-a05d-4342-97b7-7c30c1007610/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-16 11:31:59,854 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b124e0b-a05d-4342-97b7-7c30c1007610/bin/uautomizer-tPACEb0tL8/data/dfb9845a0/238a043f59e247b59d52d2969ba6f78b/FLAG2b197b791 [2022-11-16 11:32:00,027 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b124e0b-a05d-4342-97b7-7c30c1007610/bin/uautomizer-tPACEb0tL8/data/dfb9845a0/238a043f59e247b59d52d2969ba6f78b [2022-11-16 11:32:00,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:32:00,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:32:00,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:32:00,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:32:00,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:32:00,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:32:00" (1/1) ... [2022-11-16 11:32:00,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18a371c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:00, skipping insertion in model container [2022-11-16 11:32:00,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:32:00" (1/1) ... [2022-11-16 11:32:00,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:32:00,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:32:00,303 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 11:32:00,854 WARN L229 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_5b124e0b-a05d-4342-97b7-7c30c1007610/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-16 11:32:00,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:32:00,898 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:32:00,912 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 11:32:00,960 WARN L229 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_5b124e0b-a05d-4342-97b7-7c30c1007610/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-16 11:32:00,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:32:01,088 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:32:01,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:01 WrapperNode [2022-11-16 11:32:01,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:32:01,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:32:01,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:32:01,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:32:01,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:01" (1/1) ... [2022-11-16 11:32:01,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:01" (1/1) ... [2022-11-16 11:32:01,197 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-11-16 11:32:01,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:32:01,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:32:01,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:32:01,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:32:01,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:01" (1/1) ... [2022-11-16 11:32:01,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:01" (1/1) ... [2022-11-16 11:32:01,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:01" (1/1) ... [2022-11-16 11:32:01,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:01" (1/1) ... [2022-11-16 11:32:01,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:01" (1/1) ... [2022-11-16 11:32:01,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:01" (1/1) ... [2022-11-16 11:32:01,233 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:01" (1/1) ... [2022-11-16 11:32:01,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:01" (1/1) ... [2022-11-16 11:32:01,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:32:01,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:32:01,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:32:01,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:32:01,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:01" (1/1) ... [2022-11-16 11:32:01,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:32:01,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b124e0b-a05d-4342-97b7-7c30c1007610/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:32:01,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b124e0b-a05d-4342-97b7-7c30c1007610/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:32:01,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b124e0b-a05d-4342-97b7-7c30c1007610/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:32:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:32:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:32:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:32:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:32:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:32:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:32:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:32:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:32:01,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:32:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-16 11:32:01,358 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-16 11:32:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:32:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:32:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:32:01,360 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:32:01,785 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:32:01,787 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:32:02,110 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:32:02,185 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:32:02,204 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:32:02,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:32:02 BoogieIcfgContainer [2022-11-16 11:32:02,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:32:02,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:32:02,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:32:02,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:32:02,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:32:00" (1/3) ... [2022-11-16 11:32:02,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@377393d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:32:02, skipping insertion in model container [2022-11-16 11:32:02,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:01" (2/3) ... [2022-11-16 11:32:02,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@377393d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:32:02, skipping insertion in model container [2022-11-16 11:32:02,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:32:02" (3/3) ... [2022-11-16 11:32:02,215 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2022-11-16 11:32:02,226 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:32:02,236 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:32:02,237 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 11:32:02,237 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:32:02,337 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 11:32:02,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 173 transitions, 362 flow [2022-11-16 11:32:02,517 INFO L130 PetriNetUnfolder]: 8/216 cut-off events. [2022-11-16 11:32:02,518 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:32:02,523 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. [2022-11-16 11:32:02,524 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 173 transitions, 362 flow [2022-11-16 11:32:02,532 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 139 transitions, 287 flow [2022-11-16 11:32:02,550 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:32:02,558 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;@46f25aa9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:32:02,558 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-16 11:32:02,588 INFO L130 PetriNetUnfolder]: 0/69 cut-off events. [2022-11-16 11:32:02,591 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:32:02,591 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:32:02,592 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:02,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 11:32:02,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:02,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1154381407, now seen corresponding path program 1 times [2022-11-16 11:32:02,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:02,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399994430] [2022-11-16 11:32:02,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:02,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:04,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:04,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:04,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399994430] [2022-11-16 11:32:04,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399994430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:04,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:04,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:32:04,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727268303] [2022-11-16 11:32:04,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:04,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 11:32:04,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:04,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 11:32:04,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:32:04,878 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 173 [2022-11-16 11:32:04,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 139 transitions, 287 flow. Second operand has 15 states, 15 states have (on average 114.66666666666667) internal successors, (1720), 15 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:04,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:32:04,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 173 [2022-11-16 11:32:04,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:32:07,146 INFO L130 PetriNetUnfolder]: 1073/4073 cut-off events. [2022-11-16 11:32:07,146 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-11-16 11:32:07,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5946 conditions, 4073 events. 1073/4073 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 38427 event pairs, 686 based on Foata normal form. 160/3752 useless extension candidates. Maximal degree in co-relation 5593. Up to 1273 conditions per place. [2022-11-16 11:32:07,175 INFO L137 encePairwiseOnDemand]: 153/173 looper letters, 82 selfloop transitions, 23 changer transitions 2/194 dead transitions. [2022-11-16 11:32:07,175 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 194 transitions, 617 flow [2022-11-16 11:32:07,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:32:07,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 11:32:07,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2151 transitions. [2022-11-16 11:32:07,195 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6907514450867052 [2022-11-16 11:32:07,195 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2151 transitions. [2022-11-16 11:32:07,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2151 transitions. [2022-11-16 11:32:07,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:32:07,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2151 transitions. [2022-11-16 11:32:07,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 119.5) internal successors, (2151), 18 states have internal predecessors, (2151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:07,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 173.0) internal successors, (3287), 19 states have internal predecessors, (3287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:07,223 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 173.0) internal successors, (3287), 19 states have internal predecessors, (3287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:07,225 INFO L175 Difference]: Start difference. First operand has 144 places, 139 transitions, 287 flow. Second operand 18 states and 2151 transitions. [2022-11-16 11:32:07,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 194 transitions, 617 flow [2022-11-16 11:32:07,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 194 transitions, 609 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:32:07,235 INFO L231 Difference]: Finished difference. Result has 165 places, 150 transitions, 403 flow [2022-11-16 11:32:07,237 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=403, PETRI_PLACES=165, PETRI_TRANSITIONS=150} [2022-11-16 11:32:07,241 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 21 predicate places. [2022-11-16 11:32:07,241 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 150 transitions, 403 flow [2022-11-16 11:32:07,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 114.66666666666667) internal successors, (1720), 15 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:07,243 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:32:07,243 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:07,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:32:07,244 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 11:32:07,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:07,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1816973476, now seen corresponding path program 1 times [2022-11-16 11:32:07,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:07,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237518819] [2022-11-16 11:32:07,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:07,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:08,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:08,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:08,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237518819] [2022-11-16 11:32:08,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237518819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:08,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:08,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-16 11:32:08,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525159653] [2022-11-16 11:32:08,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:08,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 11:32:08,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:08,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 11:32:08,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:32:08,702 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-16 11:32:08,705 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 150 transitions, 403 flow. Second operand has 19 states, 19 states have (on average 105.6842105263158) internal successors, (2008), 19 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:08,706 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:32:08,706 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-16 11:32:08,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:32:11,282 INFO L130 PetriNetUnfolder]: 1529/4713 cut-off events. [2022-11-16 11:32:11,283 INFO L131 PetriNetUnfolder]: For 927/946 co-relation queries the response was YES. [2022-11-16 11:32:11,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8238 conditions, 4713 events. 1529/4713 cut-off events. For 927/946 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 42637 event pairs, 786 based on Foata normal form. 63/4244 useless extension candidates. Maximal degree in co-relation 7670. Up to 1468 conditions per place. [2022-11-16 11:32:11,372 INFO L137 encePairwiseOnDemand]: 151/173 looper letters, 123 selfloop transitions, 41 changer transitions 2/245 dead transitions. [2022-11-16 11:32:11,372 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 245 transitions, 986 flow [2022-11-16 11:32:11,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:32:11,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 11:32:11,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2348 transitions. [2022-11-16 11:32:11,379 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.646297825488577 [2022-11-16 11:32:11,379 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2348 transitions. [2022-11-16 11:32:11,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2348 transitions. [2022-11-16 11:32:11,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:32:11,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2348 transitions. [2022-11-16 11:32:11,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 111.80952380952381) internal successors, (2348), 21 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:11,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:11,397 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:11,397 INFO L175 Difference]: Start difference. First operand has 165 places, 150 transitions, 403 flow. Second operand 21 states and 2348 transitions. [2022-11-16 11:32:11,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 245 transitions, 986 flow [2022-11-16 11:32:11,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 245 transitions, 975 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 11:32:11,420 INFO L231 Difference]: Finished difference. Result has 188 places, 176 transitions, 629 flow [2022-11-16 11:32:11,421 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=629, PETRI_PLACES=188, PETRI_TRANSITIONS=176} [2022-11-16 11:32:11,422 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 44 predicate places. [2022-11-16 11:32:11,423 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 176 transitions, 629 flow [2022-11-16 11:32:11,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 105.6842105263158) internal successors, (2008), 19 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:11,424 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:32:11,425 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:11,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:32:11,425 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 11:32:11,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:11,426 INFO L85 PathProgramCache]: Analyzing trace with hash -393296468, now seen corresponding path program 1 times [2022-11-16 11:32:11,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:11,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234623196] [2022-11-16 11:32:11,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:11,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:12,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:12,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:12,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234623196] [2022-11-16 11:32:12,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234623196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:12,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:12,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-16 11:32:12,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505095152] [2022-11-16 11:32:12,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:12,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 11:32:12,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:12,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 11:32:12,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:32:12,767 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-16 11:32:12,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 176 transitions, 629 flow. Second operand has 19 states, 19 states have (on average 105.73684210526316) internal successors, (2009), 19 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:12,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:32:12,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-16 11:32:12,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:32:15,749 INFO L130 PetriNetUnfolder]: 2463/7820 cut-off events. [2022-11-16 11:32:15,750 INFO L131 PetriNetUnfolder]: For 6315/7383 co-relation queries the response was YES. [2022-11-16 11:32:15,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16006 conditions, 7820 events. 2463/7820 cut-off events. For 6315/7383 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 79776 event pairs, 984 based on Foata normal form. 87/7138 useless extension candidates. Maximal degree in co-relation 15010. Up to 3199 conditions per place. [2022-11-16 11:32:15,850 INFO L137 encePairwiseOnDemand]: 151/173 looper letters, 121 selfloop transitions, 61 changer transitions 9/278 dead transitions. [2022-11-16 11:32:15,850 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 278 transitions, 1398 flow [2022-11-16 11:32:15,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:32:15,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 11:32:15,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2337 transitions. [2022-11-16 11:32:15,859 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.643270024772915 [2022-11-16 11:32:15,860 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2337 transitions. [2022-11-16 11:32:15,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2337 transitions. [2022-11-16 11:32:15,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:32:15,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2337 transitions. [2022-11-16 11:32:15,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 111.28571428571429) internal successors, (2337), 21 states have internal predecessors, (2337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:15,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:15,879 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:15,880 INFO L175 Difference]: Start difference. First operand has 188 places, 176 transitions, 629 flow. Second operand 21 states and 2337 transitions. [2022-11-16 11:32:15,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 278 transitions, 1398 flow [2022-11-16 11:32:15,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 278 transitions, 1324 flow, removed 28 selfloop flow, removed 10 redundant places. [2022-11-16 11:32:15,970 INFO L231 Difference]: Finished difference. Result has 207 places, 213 transitions, 976 flow [2022-11-16 11:32:15,970 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=976, PETRI_PLACES=207, PETRI_TRANSITIONS=213} [2022-11-16 11:32:15,973 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 63 predicate places. [2022-11-16 11:32:15,973 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 213 transitions, 976 flow [2022-11-16 11:32:15,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 105.73684210526316) internal successors, (2009), 19 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:15,975 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:32:15,975 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:15,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:32:15,975 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 11:32:15,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:15,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1153865424, now seen corresponding path program 1 times [2022-11-16 11:32:15,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:15,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608447987] [2022-11-16 11:32:15,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:15,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:17,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:17,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:17,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608447987] [2022-11-16 11:32:17,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608447987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:17,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:17,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-16 11:32:17,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649194738] [2022-11-16 11:32:17,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:17,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:32:17,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:17,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:32:17,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:32:17,415 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-16 11:32:17,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 213 transitions, 976 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:17,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:32:17,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-16 11:32:17,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:32:24,424 INFO L130 PetriNetUnfolder]: 4352/16316 cut-off events. [2022-11-16 11:32:24,424 INFO L131 PetriNetUnfolder]: For 12697/19178 co-relation queries the response was YES. [2022-11-16 11:32:24,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31922 conditions, 16316 events. 4352/16316 cut-off events. For 12697/19178 co-relation queries the response was YES. Maximal size of possible extension queue 631. Compared 202781 event pairs, 1288 based on Foata normal form. 202/15457 useless extension candidates. Maximal degree in co-relation 30682. Up to 2179 conditions per place. [2022-11-16 11:32:24,612 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 432 selfloop transitions, 74 changer transitions 4/610 dead transitions. [2022-11-16 11:32:24,612 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 610 transitions, 3955 flow [2022-11-16 11:32:24,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-16 11:32:24,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-16 11:32:24,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3700 transitions. [2022-11-16 11:32:24,621 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.763831544178365 [2022-11-16 11:32:24,621 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3700 transitions. [2022-11-16 11:32:24,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3700 transitions. [2022-11-16 11:32:24,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:32:24,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3700 transitions. [2022-11-16 11:32:24,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 132.14285714285714) internal successors, (3700), 28 states have internal predecessors, (3700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:24,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:24,643 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:24,643 INFO L175 Difference]: Start difference. First operand has 207 places, 213 transitions, 976 flow. Second operand 28 states and 3700 transitions. [2022-11-16 11:32:24,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 610 transitions, 3955 flow [2022-11-16 11:32:24,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 610 transitions, 3886 flow, removed 27 selfloop flow, removed 8 redundant places. [2022-11-16 11:32:24,751 INFO L231 Difference]: Finished difference. Result has 239 places, 265 transitions, 1581 flow [2022-11-16 11:32:24,751 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=943, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1581, PETRI_PLACES=239, PETRI_TRANSITIONS=265} [2022-11-16 11:32:24,752 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 95 predicate places. [2022-11-16 11:32:24,752 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 265 transitions, 1581 flow [2022-11-16 11:32:24,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:24,754 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:32:24,754 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:24,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:32:24,754 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 11:32:24,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:24,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1387257904, now seen corresponding path program 2 times [2022-11-16 11:32:24,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:24,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828886675] [2022-11-16 11:32:24,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:24,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:25,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:25,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:25,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828886675] [2022-11-16 11:32:25,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828886675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:25,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:25,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-16 11:32:25,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411911637] [2022-11-16 11:32:25,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:25,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:32:25,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:25,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:32:25,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:32:25,975 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-16 11:32:25,977 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 265 transitions, 1581 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:25,978 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:32:25,978 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-16 11:32:25,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:32:33,507 INFO L130 PetriNetUnfolder]: 6090/22209 cut-off events. [2022-11-16 11:32:33,507 INFO L131 PetriNetUnfolder]: For 34935/46306 co-relation queries the response was YES. [2022-11-16 11:32:33,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51904 conditions, 22209 events. 6090/22209 cut-off events. For 34935/46306 co-relation queries the response was YES. Maximal size of possible extension queue 890. Compared 290485 event pairs, 1666 based on Foata normal form. 369/21145 useless extension candidates. Maximal degree in co-relation 50844. Up to 2401 conditions per place. [2022-11-16 11:32:33,780 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 449 selfloop transitions, 119 changer transitions 4/672 dead transitions. [2022-11-16 11:32:33,780 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 672 transitions, 5315 flow [2022-11-16 11:32:33,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-16 11:32:33,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-16 11:32:33,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3699 transitions. [2022-11-16 11:32:33,790 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7636251032204789 [2022-11-16 11:32:33,790 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3699 transitions. [2022-11-16 11:32:33,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3699 transitions. [2022-11-16 11:32:33,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:32:33,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3699 transitions. [2022-11-16 11:32:33,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 132.10714285714286) internal successors, (3699), 28 states have internal predecessors, (3699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:33,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:33,814 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:33,814 INFO L175 Difference]: Start difference. First operand has 239 places, 265 transitions, 1581 flow. Second operand 28 states and 3699 transitions. [2022-11-16 11:32:33,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 672 transitions, 5315 flow [2022-11-16 11:32:34,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 672 transitions, 5239 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-11-16 11:32:34,058 INFO L231 Difference]: Finished difference. Result has 273 places, 318 transitions, 2529 flow [2022-11-16 11:32:34,059 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=1535, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=2529, PETRI_PLACES=273, PETRI_TRANSITIONS=318} [2022-11-16 11:32:34,059 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 129 predicate places. [2022-11-16 11:32:34,060 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 318 transitions, 2529 flow [2022-11-16 11:32:34,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:34,061 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:32:34,062 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:34,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:32:34,062 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 11:32:34,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:34,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1346274258, now seen corresponding path program 1 times [2022-11-16 11:32:34,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:34,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533284885] [2022-11-16 11:32:34,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:34,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:35,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:35,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:35,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533284885] [2022-11-16 11:32:35,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533284885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:35,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:35,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-16 11:32:35,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935106032] [2022-11-16 11:32:35,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:35,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:32:35,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:35,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:32:35,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:32:35,442 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-16 11:32:35,444 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 318 transitions, 2529 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:35,445 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:32:35,445 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-16 11:32:35,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:32:43,105 INFO L130 PetriNetUnfolder]: 6379/22401 cut-off events. [2022-11-16 11:32:43,105 INFO L131 PetriNetUnfolder]: For 67210/80793 co-relation queries the response was YES. [2022-11-16 11:32:43,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61482 conditions, 22401 events. 6379/22401 cut-off events. For 67210/80793 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 288318 event pairs, 1452 based on Foata normal form. 187/21028 useless extension candidates. Maximal degree in co-relation 60085. Up to 3942 conditions per place. [2022-11-16 11:32:43,446 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 472 selfloop transitions, 169 changer transitions 4/745 dead transitions. [2022-11-16 11:32:43,446 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 745 transitions, 7629 flow [2022-11-16 11:32:43,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-16 11:32:43,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-16 11:32:43,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3671 transitions. [2022-11-16 11:32:43,610 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7578447563996696 [2022-11-16 11:32:43,610 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3671 transitions. [2022-11-16 11:32:43,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3671 transitions. [2022-11-16 11:32:43,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:32:43,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3671 transitions. [2022-11-16 11:32:43,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 131.10714285714286) internal successors, (3671), 28 states have internal predecessors, (3671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:43,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:43,628 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:43,628 INFO L175 Difference]: Start difference. First operand has 273 places, 318 transitions, 2529 flow. Second operand 28 states and 3671 transitions. [2022-11-16 11:32:43,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 745 transitions, 7629 flow [2022-11-16 11:32:44,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 745 transitions, 7505 flow, removed 41 selfloop flow, removed 11 redundant places. [2022-11-16 11:32:44,047 INFO L231 Difference]: Finished difference. Result has 301 places, 395 transitions, 4111 flow [2022-11-16 11:32:44,048 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=2453, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=4111, PETRI_PLACES=301, PETRI_TRANSITIONS=395} [2022-11-16 11:32:44,051 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 157 predicate places. [2022-11-16 11:32:44,051 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 395 transitions, 4111 flow [2022-11-16 11:32:44,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:44,052 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:32:44,052 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:44,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:32:44,053 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 11:32:44,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:44,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1867025932, now seen corresponding path program 3 times [2022-11-16 11:32:44,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:44,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081584116] [2022-11-16 11:32:44,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:44,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:45,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:45,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:45,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081584116] [2022-11-16 11:32:45,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081584116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:45,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:45,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-16 11:32:45,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355915017] [2022-11-16 11:32:45,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:45,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:32:45,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:45,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:32:45,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:32:45,266 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-16 11:32:45,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 395 transitions, 4111 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:45,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:32:45,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-16 11:32:45,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:32:53,789 INFO L130 PetriNetUnfolder]: 6476/24360 cut-off events. [2022-11-16 11:32:53,789 INFO L131 PetriNetUnfolder]: For 90094/104914 co-relation queries the response was YES. [2022-11-16 11:32:54,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68409 conditions, 24360 events. 6476/24360 cut-off events. For 90094/104914 co-relation queries the response was YES. Maximal size of possible extension queue 917. Compared 325419 event pairs, 2398 based on Foata normal form. 236/22924 useless extension candidates. Maximal degree in co-relation 68003. Up to 4673 conditions per place. [2022-11-16 11:32:54,140 INFO L137 encePairwiseOnDemand]: 155/173 looper letters, 482 selfloop transitions, 166 changer transitions 2/750 dead transitions. [2022-11-16 11:32:54,141 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 750 transitions, 8138 flow [2022-11-16 11:32:54,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-16 11:32:54,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-16 11:32:54,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3682 transitions. [2022-11-16 11:32:54,154 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7601156069364162 [2022-11-16 11:32:54,154 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3682 transitions. [2022-11-16 11:32:54,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3682 transitions. [2022-11-16 11:32:54,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:32:54,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3682 transitions. [2022-11-16 11:32:54,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 131.5) internal successors, (3682), 28 states have internal predecessors, (3682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:54,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:54,173 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:54,173 INFO L175 Difference]: Start difference. First operand has 301 places, 395 transitions, 4111 flow. Second operand 28 states and 3682 transitions. [2022-11-16 11:32:54,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 750 transitions, 8138 flow [2022-11-16 11:32:54,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 750 transitions, 7745 flow, removed 160 selfloop flow, removed 13 redundant places. [2022-11-16 11:32:54,752 INFO L231 Difference]: Finished difference. Result has 321 places, 408 transitions, 4569 flow [2022-11-16 11:32:54,753 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=3918, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=4569, PETRI_PLACES=321, PETRI_TRANSITIONS=408} [2022-11-16 11:32:54,754 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 177 predicate places. [2022-11-16 11:32:54,754 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 408 transitions, 4569 flow [2022-11-16 11:32:54,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:54,755 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:32:54,755 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:54,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:32:54,755 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 11:32:54,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:54,756 INFO L85 PathProgramCache]: Analyzing trace with hash -829470714, now seen corresponding path program 4 times [2022-11-16 11:32:54,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:54,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692550986] [2022-11-16 11:32:54,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:54,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:55,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:55,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:55,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692550986] [2022-11-16 11:32:55,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692550986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:55,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:55,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-16 11:32:55,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321344091] [2022-11-16 11:32:55,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:55,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 11:32:55,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:55,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 11:32:55,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:32:55,906 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-16 11:32:55,909 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 408 transitions, 4569 flow. Second operand has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:55,909 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:32:55,909 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-16 11:32:55,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:33:04,765 INFO L130 PetriNetUnfolder]: 6826/26164 cut-off events. [2022-11-16 11:33:04,765 INFO L131 PetriNetUnfolder]: For 106615/121550 co-relation queries the response was YES. [2022-11-16 11:33:05,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73596 conditions, 26164 events. 6826/26164 cut-off events. For 106615/121550 co-relation queries the response was YES. Maximal size of possible extension queue 954. Compared 354727 event pairs, 2558 based on Foata normal form. 190/24517 useless extension candidates. Maximal degree in co-relation 73167. Up to 4673 conditions per place. [2022-11-16 11:33:05,235 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 518 selfloop transitions, 181 changer transitions 2/801 dead transitions. [2022-11-16 11:33:05,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 801 transitions, 9021 flow [2022-11-16 11:33:05,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-16 11:33:05,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-16 11:33:05,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3695 transitions. [2022-11-16 11:33:05,241 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7627993393889347 [2022-11-16 11:33:05,242 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3695 transitions. [2022-11-16 11:33:05,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3695 transitions. [2022-11-16 11:33:05,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:33:05,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3695 transitions. [2022-11-16 11:33:05,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 131.96428571428572) internal successors, (3695), 28 states have internal predecessors, (3695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:05,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:05,261 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:05,261 INFO L175 Difference]: Start difference. First operand has 321 places, 408 transitions, 4569 flow. Second operand 28 states and 3695 transitions. [2022-11-16 11:33:05,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 801 transitions, 9021 flow [2022-11-16 11:33:06,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 801 transitions, 8755 flow, removed 17 selfloop flow, removed 20 redundant places. [2022-11-16 11:33:06,312 INFO L231 Difference]: Finished difference. Result has 340 places, 440 transitions, 5490 flow [2022-11-16 11:33:06,312 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=4335, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=5490, PETRI_PLACES=340, PETRI_TRANSITIONS=440} [2022-11-16 11:33:06,313 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 196 predicate places. [2022-11-16 11:33:06,313 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 440 transitions, 5490 flow [2022-11-16 11:33:06,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:06,314 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:33:06,315 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:06,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:33:06,315 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 11:33:06,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:06,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1762241286, now seen corresponding path program 5 times [2022-11-16 11:33:06,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:06,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636144654] [2022-11-16 11:33:06,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:06,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:07,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:07,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:07,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636144654] [2022-11-16 11:33:07,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636144654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:07,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:07,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-16 11:33:07,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135510203] [2022-11-16 11:33:07,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:07,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 11:33:07,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:07,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 11:33:07,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:33:07,569 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-16 11:33:07,572 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 440 transitions, 5490 flow. Second operand has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:07,572 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:33:07,573 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-16 11:33:07,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:33:17,191 INFO L130 PetriNetUnfolder]: 7101/27908 cut-off events. [2022-11-16 11:33:17,191 INFO L131 PetriNetUnfolder]: For 128970/144996 co-relation queries the response was YES. [2022-11-16 11:33:17,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79897 conditions, 27908 events. 7101/27908 cut-off events. For 128970/144996 co-relation queries the response was YES. Maximal size of possible extension queue 1004. Compared 384559 event pairs, 2908 based on Foata normal form. 169/26151 useless extension candidates. Maximal degree in co-relation 79464. Up to 4673 conditions per place. [2022-11-16 11:33:17,713 INFO L137 encePairwiseOnDemand]: 155/173 looper letters, 504 selfloop transitions, 191 changer transitions 2/797 dead transitions. [2022-11-16 11:33:17,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 797 transitions, 9604 flow [2022-11-16 11:33:17,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-16 11:33:17,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-16 11:33:17,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3683 transitions. [2022-11-16 11:33:17,723 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7603220478943022 [2022-11-16 11:33:17,723 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3683 transitions. [2022-11-16 11:33:17,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3683 transitions. [2022-11-16 11:33:17,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:33:17,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3683 transitions. [2022-11-16 11:33:17,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 131.53571428571428) internal successors, (3683), 28 states have internal predecessors, (3683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:17,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:17,744 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:17,744 INFO L175 Difference]: Start difference. First operand has 340 places, 440 transitions, 5490 flow. Second operand 28 states and 3683 transitions. [2022-11-16 11:33:17,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 797 transitions, 9604 flow [2022-11-16 11:33:18,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 797 transitions, 9332 flow, removed 77 selfloop flow, removed 14 redundant places. [2022-11-16 11:33:18,723 INFO L231 Difference]: Finished difference. Result has 361 places, 460 transitions, 6236 flow [2022-11-16 11:33:18,724 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=5246, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=6236, PETRI_PLACES=361, PETRI_TRANSITIONS=460} [2022-11-16 11:33:18,725 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 217 predicate places. [2022-11-16 11:33:18,725 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 460 transitions, 6236 flow [2022-11-16 11:33:18,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:18,727 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:33:18,727 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:18,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:33:18,727 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 11:33:18,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:18,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1370506008, now seen corresponding path program 6 times [2022-11-16 11:33:18,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:18,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831852606] [2022-11-16 11:33:18,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:18,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:19,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:19,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:19,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831852606] [2022-11-16 11:33:19,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831852606] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:19,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:19,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-16 11:33:19,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88907444] [2022-11-16 11:33:19,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:19,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 11:33:19,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:19,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 11:33:19,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:33:19,956 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-16 11:33:19,958 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 460 transitions, 6236 flow. Second operand has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:19,958 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:33:19,958 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-16 11:33:19,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:33:28,967 INFO L130 PetriNetUnfolder]: 6321/23186 cut-off events. [2022-11-16 11:33:28,968 INFO L131 PetriNetUnfolder]: For 120242/137466 co-relation queries the response was YES. [2022-11-16 11:33:29,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70451 conditions, 23186 events. 6321/23186 cut-off events. For 120242/137466 co-relation queries the response was YES. Maximal size of possible extension queue 844. Compared 304570 event pairs, 2012 based on Foata normal form. 234/21732 useless extension candidates. Maximal degree in co-relation 70079. Up to 4673 conditions per place. [2022-11-16 11:33:29,408 INFO L137 encePairwiseOnDemand]: 155/173 looper letters, 508 selfloop transitions, 192 changer transitions 0/800 dead transitions. [2022-11-16 11:33:29,408 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 800 transitions, 10012 flow [2022-11-16 11:33:29,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-16 11:33:29,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-16 11:33:29,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3684 transitions. [2022-11-16 11:33:29,413 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7605284888521883 [2022-11-16 11:33:29,413 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3684 transitions. [2022-11-16 11:33:29,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3684 transitions. [2022-11-16 11:33:29,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:33:29,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3684 transitions. [2022-11-16 11:33:29,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 131.57142857142858) internal successors, (3684), 28 states have internal predecessors, (3684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:29,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:29,427 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:29,427 INFO L175 Difference]: Start difference. First operand has 361 places, 460 transitions, 6236 flow. Second operand 28 states and 3684 transitions. [2022-11-16 11:33:29,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 800 transitions, 10012 flow [2022-11-16 11:33:30,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 800 transitions, 9690 flow, removed 67 selfloop flow, removed 18 redundant places. [2022-11-16 11:33:30,417 INFO L231 Difference]: Finished difference. Result has 380 places, 472 transitions, 6765 flow [2022-11-16 11:33:30,418 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=5777, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=175, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=6765, PETRI_PLACES=380, PETRI_TRANSITIONS=472} [2022-11-16 11:33:30,418 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 236 predicate places. [2022-11-16 11:33:30,419 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 472 transitions, 6765 flow [2022-11-16 11:33:30,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:30,419 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:33:30,420 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:30,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:33:30,420 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 11:33:30,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:30,420 INFO L85 PathProgramCache]: Analyzing trace with hash 238717968, now seen corresponding path program 7 times [2022-11-16 11:33:30,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:30,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294423060] [2022-11-16 11:33:30,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:30,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:31,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:31,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:31,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294423060] [2022-11-16 11:33:31,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294423060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:31,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:31,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-16 11:33:31,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095427900] [2022-11-16 11:33:31,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:31,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:33:31,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:31,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:33:31,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:33:31,519 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-16 11:33:31,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 472 transitions, 6765 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:31,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:33:31,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-16 11:33:31,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand