./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2-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_1a8b716a-d80c-43c6-b10b-ea66faac4241/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b716a-d80c-43c6-b10b-ea66faac4241/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_1a8b716a-d80c-43c6-b10b-ea66faac4241/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b716a-d80c-43c6-b10b-ea66faac4241/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b716a-d80c-43c6-b10b-ea66faac4241/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_1a8b716a-d80c-43c6-b10b-ea66faac4241/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 dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 --- 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 11:10:51,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:10:51,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:10:51,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:10:51,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:10:51,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:10:51,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:10:51,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:10:51,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:10:51,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:10:51,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:10:51,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:10:51,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:10:51,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:10:51,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:10:51,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:10:51,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:10:51,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:10:51,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:10:51,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:10:51,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:10:51,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:10:51,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:10:51,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:10:51,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:10:51,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:10:51,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:10:51,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:10:51,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:10:51,512 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:10:51,512 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:10:51,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:10:51,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:10:51,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:10:51,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:10:51,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:10:51,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:10:51,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:10:51,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:10:51,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:10:51,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:10:51,527 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b716a-d80c-43c6-b10b-ea66faac4241/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:10:51,576 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:10:51,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:10:51,578 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:10:51,578 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:10:51,579 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:10:51,579 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:10:51,581 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:10:51,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:10:51,582 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:10:51,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:10:51,584 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:10:51,584 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:10:51,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:10:51,585 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:10:51,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:10:51,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:10:51,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:10:51,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:10:51,586 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:10:51,587 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:10:51,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:10:51,587 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:10:51,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:10:51,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:10:51,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:10:51,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:10:51,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:10:51,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:10:51,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:10:51,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:10:51,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:10:51,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:10:51,591 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:10:51,592 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:10:51,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:10:51,592 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_1a8b716a-d80c-43c6-b10b-ea66faac4241/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b716a-d80c-43c6-b10b-ea66faac4241/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 [2022-11-16 11:10:51,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:10:52,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:10:52,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:10:52,010 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:10:52,015 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:10:52,017 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b716a-d80c-43c6-b10b-ea66faac4241/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-11-16 11:10:52,100 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b716a-d80c-43c6-b10b-ea66faac4241/bin/uautomizer-tPACEb0tL8/data/de978102f/16dd6582089440dbb2e03d27b43604a6/FLAGbdc198086 [2022-11-16 11:10:52,878 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:10:52,879 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b716a-d80c-43c6-b10b-ea66faac4241/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-11-16 11:10:52,903 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b716a-d80c-43c6-b10b-ea66faac4241/bin/uautomizer-tPACEb0tL8/data/de978102f/16dd6582089440dbb2e03d27b43604a6/FLAGbdc198086 [2022-11-16 11:10:53,039 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b716a-d80c-43c6-b10b-ea66faac4241/bin/uautomizer-tPACEb0tL8/data/de978102f/16dd6582089440dbb2e03d27b43604a6 [2022-11-16 11:10:53,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:10:53,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:10:53,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:10:53,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:10:53,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:10:53,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:10:53" (1/1) ... [2022-11-16 11:10:53,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@152a7ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:53, skipping insertion in model container [2022-11-16 11:10:53,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:10:53" (1/1) ... [2022-11-16 11:10:53,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:10:53,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:10:53,446 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 11:10:54,014 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_1a8b716a-d80c-43c6-b10b-ea66faac4241/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-11-16 11:10:54,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:10:54,058 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:10:54,082 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 11:10:54,117 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_1a8b716a-d80c-43c6-b10b-ea66faac4241/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-11-16 11:10:54,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:10:54,242 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:10:54,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:54 WrapperNode [2022-11-16 11:10:54,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:10:54,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:10:54,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:10:54,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:10:54,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:54" (1/1) ... [2022-11-16 11:10:54,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:54" (1/1) ... [2022-11-16 11:10:54,349 INFO L138 Inliner]: procedures = 468, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 115 [2022-11-16 11:10:54,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:10:54,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:10:54,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:10:54,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:10:54,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:54" (1/1) ... [2022-11-16 11:10:54,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:54" (1/1) ... [2022-11-16 11:10:54,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:54" (1/1) ... [2022-11-16 11:10:54,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:54" (1/1) ... [2022-11-16 11:10:54,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:54" (1/1) ... [2022-11-16 11:10:54,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:54" (1/1) ... [2022-11-16 11:10:54,390 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:54" (1/1) ... [2022-11-16 11:10:54,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:54" (1/1) ... [2022-11-16 11:10:54,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:10:54,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:10:54,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:10:54,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:10:54,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:54" (1/1) ... [2022-11-16 11:10:54,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:10:54,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b716a-d80c-43c6-b10b-ea66faac4241/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:10:54,442 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b716a-d80c-43c6-b10b-ea66faac4241/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:10:54,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8b716a-d80c-43c6-b10b-ea66faac4241/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:10:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:10:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:10:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:10:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:10:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:10:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:10:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:10:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:10:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-16 11:10:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-16 11:10:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:10:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:10:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:10:54,490 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 11:10:54,972 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:10:54,974 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:10:55,328 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:10:55,354 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:10:55,354 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:10:55,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:10:55 BoogieIcfgContainer [2022-11-16 11:10:55,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:10:55,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:10:55,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:10:55,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:10:55,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:10:53" (1/3) ... [2022-11-16 11:10:55,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e507bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:10:55, skipping insertion in model container [2022-11-16 11:10:55,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:10:54" (2/3) ... [2022-11-16 11:10:55,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e507bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:10:55, skipping insertion in model container [2022-11-16 11:10:55,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:10:55" (3/3) ... [2022-11-16 11:10:55,368 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2022-11-16 11:10:55,377 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:10:55,389 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:10:55,390 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 11:10:55,390 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:10:55,500 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 11:10:55,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 163 transitions, 342 flow [2022-11-16 11:10:55,643 INFO L130 PetriNetUnfolder]: 8/206 cut-off events. [2022-11-16 11:10:55,644 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:10:55,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 206 events. 8/206 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 337 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 113. Up to 4 conditions per place. [2022-11-16 11:10:55,650 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 163 transitions, 342 flow [2022-11-16 11:10:55,655 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 129 transitions, 267 flow [2022-11-16 11:10:55,665 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:10:55,672 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;@a488c98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:10:55,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-16 11:10:55,694 INFO L130 PetriNetUnfolder]: 0/63 cut-off events. [2022-11-16 11:10:55,694 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:10:55,695 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:10:55,696 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] [2022-11-16 11:10:55,696 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 11:10:55,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:10:55,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1648225963, now seen corresponding path program 1 times [2022-11-16 11:10:55,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:10:55,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959150834] [2022-11-16 11:10:55,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:10:55,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:10:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:10:58,430 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 11:10:58,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:10:58,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959150834] [2022-11-16 11:10:58,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959150834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:10:58,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:10:58,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:10:58,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400816073] [2022-11-16 11:10:58,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:10:58,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 11:10:58,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:10:58,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 11:10:58,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:10:58,511 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 163 [2022-11-16 11:10:58,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 129 transitions, 267 flow. Second operand has 15 states, 15 states have (on average 110.6) internal successors, (1659), 15 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states 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 11:10:58,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:10:58,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 163 [2022-11-16 11:10:58,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:11:00,886 INFO L130 PetriNetUnfolder]: 835/3167 cut-off events. [2022-11-16 11:11:00,887 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-11-16 11:11:00,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4631 conditions, 3167 events. 835/3167 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 28080 event pairs, 546 based on Foata normal form. 130/2858 useless extension candidates. Maximal degree in co-relation 4422. Up to 1046 conditions per place. [2022-11-16 11:11:00,917 INFO L137 encePairwiseOnDemand]: 143/163 looper letters, 67 selfloop transitions, 23 changer transitions 2/175 dead transitions. [2022-11-16 11:11:00,917 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 175 transitions, 549 flow [2022-11-16 11:11:00,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:11:00,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 11:11:00,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2064 transitions. [2022-11-16 11:11:00,938 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7034764826175869 [2022-11-16 11:11:00,939 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2064 transitions. [2022-11-16 11:11:00,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2064 transitions. [2022-11-16 11:11:00,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:11:00,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2064 transitions. [2022-11-16 11:11:00,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 114.66666666666667) internal successors, (2064), 18 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states 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 11:11:00,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 163.0) internal successors, (3097), 19 states have internal predecessors, (3097), 0 states have call successors, (0), 0 states 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 11:11:00,971 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 163.0) internal successors, (3097), 19 states have internal predecessors, (3097), 0 states have call successors, (0), 0 states 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 11:11:00,974 INFO L175 Difference]: Start difference. First operand has 134 places, 129 transitions, 267 flow. Second operand 18 states and 2064 transitions. [2022-11-16 11:11:00,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 175 transitions, 549 flow [2022-11-16 11:11:00,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 175 transitions, 541 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:11:00,986 INFO L231 Difference]: Finished difference. Result has 155 places, 140 transitions, 383 flow [2022-11-16 11:11:00,988 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=383, PETRI_PLACES=155, PETRI_TRANSITIONS=140} [2022-11-16 11:11:00,992 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 21 predicate places. [2022-11-16 11:11:00,993 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 140 transitions, 383 flow [2022-11-16 11:11:00,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 110.6) internal successors, (1659), 15 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states 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 11:11:00,994 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:11:00,995 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] [2022-11-16 11:11:00,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:11:00,995 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 11:11:00,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:00,997 INFO L85 PathProgramCache]: Analyzing trace with hash -689523701, now seen corresponding path program 1 times [2022-11-16 11:11:00,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:00,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403698408] [2022-11-16 11:11:00,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:00,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:02,663 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 11:11:02,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:02,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403698408] [2022-11-16 11:11:02,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403698408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:02,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:02,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-16 11:11:02,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318605364] [2022-11-16 11:11:02,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:02,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 11:11:02,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:02,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 11:11:02,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:11:02,673 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 163 [2022-11-16 11:11:02,677 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 140 transitions, 383 flow. Second operand has 19 states, 19 states have (on average 101.63157894736842) internal successors, (1931), 19 states have internal predecessors, (1931), 0 states have call successors, (0), 0 states 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 11:11:02,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:11:02,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 163 [2022-11-16 11:11:02,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:11:05,283 INFO L130 PetriNetUnfolder]: 1200/4026 cut-off events. [2022-11-16 11:11:05,284 INFO L131 PetriNetUnfolder]: For 1045/1054 co-relation queries the response was YES. [2022-11-16 11:11:05,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7021 conditions, 4026 events. 1200/4026 cut-off events. For 1045/1054 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 36015 event pairs, 690 based on Foata normal form. 57/3580 useless extension candidates. Maximal degree in co-relation 6458. Up to 1299 conditions per place. [2022-11-16 11:11:05,325 INFO L137 encePairwiseOnDemand]: 140/163 looper letters, 106 selfloop transitions, 45 changer transitions 2/228 dead transitions. [2022-11-16 11:11:05,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 228 transitions, 930 flow [2022-11-16 11:11:05,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:11:05,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 11:11:05,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2251 transitions. [2022-11-16 11:11:05,333 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6576102833771545 [2022-11-16 11:11:05,333 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2251 transitions. [2022-11-16 11:11:05,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2251 transitions. [2022-11-16 11:11:05,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:11:05,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2251 transitions. [2022-11-16 11:11:05,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 107.19047619047619) internal successors, (2251), 21 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states 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 11:11:05,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 163.0) internal successors, (3586), 22 states have internal predecessors, (3586), 0 states have call successors, (0), 0 states 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 11:11:05,352 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 163.0) internal successors, (3586), 22 states have internal predecessors, (3586), 0 states have call successors, (0), 0 states 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 11:11:05,352 INFO L175 Difference]: Start difference. First operand has 155 places, 140 transitions, 383 flow. Second operand 21 states and 2251 transitions. [2022-11-16 11:11:05,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 228 transitions, 930 flow [2022-11-16 11:11:05,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 228 transitions, 919 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 11:11:05,368 INFO L231 Difference]: Finished difference. Result has 178 places, 167 transitions, 629 flow [2022-11-16 11:11:05,368 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=629, PETRI_PLACES=178, PETRI_TRANSITIONS=167} [2022-11-16 11:11:05,370 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 44 predicate places. [2022-11-16 11:11:05,370 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 167 transitions, 629 flow [2022-11-16 11:11:05,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 101.63157894736842) internal successors, (1931), 19 states have internal predecessors, (1931), 0 states have call successors, (0), 0 states 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 11:11:05,372 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:11:05,373 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] [2022-11-16 11:11:05,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:11:05,373 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 11:11:05,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:05,377 INFO L85 PathProgramCache]: Analyzing trace with hash -641521751, now seen corresponding path program 2 times [2022-11-16 11:11:05,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:05,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124164569] [2022-11-16 11:11:05,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:05,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:07,225 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 11:11:07,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:07,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124164569] [2022-11-16 11:11:07,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124164569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:07,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:07,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:11:07,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748086861] [2022-11-16 11:11:07,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:07,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:11:07,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:07,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:11:07,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:11:07,230 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 163 [2022-11-16 11:11:07,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 167 transitions, 629 flow. Second operand has 18 states, 18 states have (on average 101.72222222222223) internal successors, (1831), 18 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states 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 11:11:07,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:11:07,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 163 [2022-11-16 11:11:07,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:11:09,938 INFO L130 PetriNetUnfolder]: 1299/4450 cut-off events. [2022-11-16 11:11:09,939 INFO L131 PetriNetUnfolder]: For 4020/4295 co-relation queries the response was YES. [2022-11-16 11:11:09,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8975 conditions, 4450 events. 1299/4450 cut-off events. For 4020/4295 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 41160 event pairs, 577 based on Foata normal form. 117/4022 useless extension candidates. Maximal degree in co-relation 8316. Up to 1227 conditions per place. [2022-11-16 11:11:09,983 INFO L137 encePairwiseOnDemand]: 142/163 looper letters, 112 selfloop transitions, 52 changer transitions 2/241 dead transitions. [2022-11-16 11:11:09,983 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 241 transitions, 1222 flow [2022-11-16 11:11:09,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:11:09,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:11:09,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2149 transitions. [2022-11-16 11:11:09,991 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.65920245398773 [2022-11-16 11:11:09,992 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2149 transitions. [2022-11-16 11:11:09,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2149 transitions. [2022-11-16 11:11:09,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:11:09,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2149 transitions. [2022-11-16 11:11:10,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 107.45) internal successors, (2149), 20 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states 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 11:11:10,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 163.0) internal successors, (3423), 21 states have internal predecessors, (3423), 0 states have call successors, (0), 0 states 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 11:11:10,010 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 163.0) internal successors, (3423), 21 states have internal predecessors, (3423), 0 states have call successors, (0), 0 states 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 11:11:10,010 INFO L175 Difference]: Start difference. First operand has 178 places, 167 transitions, 629 flow. Second operand 20 states and 2149 transitions. [2022-11-16 11:11:10,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 241 transitions, 1222 flow [2022-11-16 11:11:10,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 241 transitions, 1143 flow, removed 29 selfloop flow, removed 11 redundant places. [2022-11-16 11:11:10,038 INFO L231 Difference]: Finished difference. Result has 190 places, 178 transitions, 799 flow [2022-11-16 11:11:10,039 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=799, PETRI_PLACES=190, PETRI_TRANSITIONS=178} [2022-11-16 11:11:10,040 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 56 predicate places. [2022-11-16 11:11:10,040 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 178 transitions, 799 flow [2022-11-16 11:11:10,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 101.72222222222223) internal successors, (1831), 18 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states 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 11:11:10,042 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:11:10,042 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] [2022-11-16 11:11:10,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:11:10,043 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 11:11:10,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:10,044 INFO L85 PathProgramCache]: Analyzing trace with hash -782986223, now seen corresponding path program 1 times [2022-11-16 11:11:10,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:10,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923456243] [2022-11-16 11:11:10,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:10,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:11,198 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 11:11:11,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:11,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923456243] [2022-11-16 11:11:11,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923456243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:11,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:11,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-16 11:11:11,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719890336] [2022-11-16 11:11:11,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:11,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 11:11:11,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:11,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 11:11:11,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:11:11,202 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 163 [2022-11-16 11:11:11,204 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 178 transitions, 799 flow. Second operand has 19 states, 19 states have (on average 101.6842105263158) internal successors, (1932), 19 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:11:11,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:11:11,205 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 163 [2022-11-16 11:11:11,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:11:14,426 INFO L130 PetriNetUnfolder]: 2336/8569 cut-off events. [2022-11-16 11:11:14,426 INFO L131 PetriNetUnfolder]: For 7861/14835 co-relation queries the response was YES. [2022-11-16 11:11:14,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17114 conditions, 8569 events. 2336/8569 cut-off events. For 7861/14835 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 92893 event pairs, 855 based on Foata normal form. 173/7847 useless extension candidates. Maximal degree in co-relation 16187. Up to 3160 conditions per place. [2022-11-16 11:11:14,507 INFO L137 encePairwiseOnDemand]: 141/163 looper letters, 118 selfloop transitions, 74 changer transitions 5/280 dead transitions. [2022-11-16 11:11:14,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 280 transitions, 1709 flow [2022-11-16 11:11:14,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:11:14,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 11:11:14,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2238 transitions. [2022-11-16 11:11:14,513 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6538124452234881 [2022-11-16 11:11:14,513 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2238 transitions. [2022-11-16 11:11:14,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2238 transitions. [2022-11-16 11:11:14,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:11:14,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2238 transitions. [2022-11-16 11:11:14,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 106.57142857142857) internal successors, (2238), 21 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states 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 11:11:14,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 163.0) internal successors, (3586), 22 states have internal predecessors, (3586), 0 states have call successors, (0), 0 states 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 11:11:14,531 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 163.0) internal successors, (3586), 22 states have internal predecessors, (3586), 0 states have call successors, (0), 0 states 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 11:11:14,531 INFO L175 Difference]: Start difference. First operand has 190 places, 178 transitions, 799 flow. Second operand 21 states and 2238 transitions. [2022-11-16 11:11:14,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 280 transitions, 1709 flow [2022-11-16 11:11:14,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 280 transitions, 1615 flow, removed 24 selfloop flow, removed 12 redundant places. [2022-11-16 11:11:14,573 INFO L231 Difference]: Finished difference. Result has 207 places, 224 transitions, 1299 flow [2022-11-16 11:11:14,578 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=751, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1299, PETRI_PLACES=207, PETRI_TRANSITIONS=224} [2022-11-16 11:11:14,580 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 73 predicate places. [2022-11-16 11:11:14,580 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 224 transitions, 1299 flow [2022-11-16 11:11:14,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 101.6842105263158) internal successors, (1932), 19 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states 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 11:11:14,581 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:11:14,582 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:11:14,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:11:14,582 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 11:11:14,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:14,583 INFO L85 PathProgramCache]: Analyzing trace with hash 20248238, now seen corresponding path program 1 times [2022-11-16 11:11:14,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:14,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014190319] [2022-11-16 11:11:14,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:14,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:16,593 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 11:11:16,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:16,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014190319] [2022-11-16 11:11:16,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014190319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:16,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:16,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-16 11:11:16,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913374262] [2022-11-16 11:11:16,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:16,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 11:11:16,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:16,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 11:11:16,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:11:16,602 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-16 11:11:16,606 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 224 transitions, 1299 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:11:16,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:11:16,608 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-16 11:11:16,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:11:25,162 INFO L130 PetriNetUnfolder]: 3260/10289 cut-off events. [2022-11-16 11:11:25,162 INFO L131 PetriNetUnfolder]: For 12543/20804 co-relation queries the response was YES. [2022-11-16 11:11:25,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24014 conditions, 10289 events. 3260/10289 cut-off events. For 12543/20804 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 107458 event pairs, 843 based on Foata normal form. 433/9940 useless extension candidates. Maximal degree in co-relation 22626. Up to 2360 conditions per place. [2022-11-16 11:11:25,388 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 229 selfloop transitions, 163 changer transitions 4/466 dead transitions. [2022-11-16 11:11:25,390 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 466 transitions, 3353 flow [2022-11-16 11:11:25,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-16 11:11:25,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-11-16 11:11:25,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3724 transitions. [2022-11-16 11:11:25,404 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.634628493524199 [2022-11-16 11:11:25,404 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 3724 transitions. [2022-11-16 11:11:25,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 3724 transitions. [2022-11-16 11:11:25,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:11:25,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 3724 transitions. [2022-11-16 11:11:25,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 103.44444444444444) internal successors, (3724), 36 states have internal predecessors, (3724), 0 states have call successors, (0), 0 states 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 11:11:25,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 163.0) internal successors, (6031), 37 states have internal predecessors, (6031), 0 states have call successors, (0), 0 states 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 11:11:25,435 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 163.0) internal successors, (6031), 37 states have internal predecessors, (6031), 0 states have call successors, (0), 0 states 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 11:11:25,436 INFO L175 Difference]: Start difference. First operand has 207 places, 224 transitions, 1299 flow. Second operand 36 states and 3724 transitions. [2022-11-16 11:11:25,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 466 transitions, 3353 flow [2022-11-16 11:11:25,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 466 transitions, 3286 flow, removed 26 selfloop flow, removed 8 redundant places. [2022-11-16 11:11:25,526 INFO L231 Difference]: Finished difference. Result has 253 places, 304 transitions, 2510 flow [2022-11-16 11:11:25,527 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=1258, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=2510, PETRI_PLACES=253, PETRI_TRANSITIONS=304} [2022-11-16 11:11:25,530 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 119 predicate places. [2022-11-16 11:11:25,531 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 304 transitions, 2510 flow [2022-11-16 11:11:25,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:11:25,532 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:11:25,532 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:11:25,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:11:25,533 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 11:11:25,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:25,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1794086476, now seen corresponding path program 1 times [2022-11-16 11:11:25,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:25,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958691756] [2022-11-16 11:11:25,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:25,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:27,529 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 11:11:27,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:27,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958691756] [2022-11-16 11:11:27,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958691756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:27,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:27,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-16 11:11:27,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857358586] [2022-11-16 11:11:27,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:27,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 11:11:27,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:27,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 11:11:27,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:11:27,534 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-16 11:11:27,538 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 304 transitions, 2510 flow. Second operand has 23 states, 23 states have (on average 96.65217391304348) internal successors, (2223), 23 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states 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 11:11:27,538 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:11:27,538 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-16 11:11:27,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:11:39,048 INFO L130 PetriNetUnfolder]: 3753/12073 cut-off events. [2022-11-16 11:11:39,048 INFO L131 PetriNetUnfolder]: For 33080/45930 co-relation queries the response was YES. [2022-11-16 11:11:39,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33082 conditions, 12073 events. 3753/12073 cut-off events. For 33080/45930 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 131433 event pairs, 961 based on Foata normal form. 1187/12327 useless extension candidates. Maximal degree in co-relation 31454. Up to 3399 conditions per place. [2022-11-16 11:11:39,291 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 298 selfloop transitions, 231 changer transitions 17/616 dead transitions. [2022-11-16 11:11:39,292 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 616 transitions, 5644 flow [2022-11-16 11:11:39,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-16 11:11:39,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-11-16 11:11:39,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 4641 transitions. [2022-11-16 11:11:39,302 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.632719836400818 [2022-11-16 11:11:39,302 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 4641 transitions. [2022-11-16 11:11:39,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 4641 transitions. [2022-11-16 11:11:39,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:11:39,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 4641 transitions. [2022-11-16 11:11:39,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 103.13333333333334) internal successors, (4641), 45 states have internal predecessors, (4641), 0 states have call successors, (0), 0 states 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 11:11:39,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 163.0) internal successors, (7498), 46 states have internal predecessors, (7498), 0 states have call successors, (0), 0 states 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 11:11:39,352 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 163.0) internal successors, (7498), 46 states have internal predecessors, (7498), 0 states have call successors, (0), 0 states 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 11:11:39,352 INFO L175 Difference]: Start difference. First operand has 253 places, 304 transitions, 2510 flow. Second operand 45 states and 4641 transitions. [2022-11-16 11:11:39,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 616 transitions, 5644 flow [2022-11-16 11:11:39,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 616 transitions, 5389 flow, removed 53 selfloop flow, removed 16 redundant places. [2022-11-16 11:11:39,529 INFO L231 Difference]: Finished difference. Result has 295 places, 410 transitions, 4159 flow [2022-11-16 11:11:39,530 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=2357, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=4159, PETRI_PLACES=295, PETRI_TRANSITIONS=410} [2022-11-16 11:11:39,532 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 161 predicate places. [2022-11-16 11:11:39,533 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 410 transitions, 4159 flow [2022-11-16 11:11:39,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 96.65217391304348) internal successors, (2223), 23 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states 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 11:11:39,534 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:11:39,534 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:11:39,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:11:39,534 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 11:11:39,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:39,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1422956285, now seen corresponding path program 1 times [2022-11-16 11:11:39,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:39,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189986700] [2022-11-16 11:11:39,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:39,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:41,313 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 11:11:41,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:41,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189986700] [2022-11-16 11:11:41,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189986700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:41,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:41,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-16 11:11:41,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460249380] [2022-11-16 11:11:41,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:41,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 11:11:41,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:41,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 11:11:41,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:11:41,320 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-16 11:11:41,323 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 410 transitions, 4159 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:11:41,323 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:11:41,323 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-16 11:11:41,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:11:53,681 INFO L130 PetriNetUnfolder]: 3987/12539 cut-off events. [2022-11-16 11:11:53,681 INFO L131 PetriNetUnfolder]: For 50078/82109 co-relation queries the response was YES. [2022-11-16 11:11:53,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39146 conditions, 12539 events. 3987/12539 cut-off events. For 50078/82109 co-relation queries the response was YES. Maximal size of possible extension queue 472. Compared 136100 event pairs, 1057 based on Foata normal form. 1545/13100 useless extension candidates. Maximal degree in co-relation 37277. Up to 3697 conditions per place. [2022-11-16 11:11:53,816 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 284 selfloop transitions, 280 changer transitions 16/650 dead transitions. [2022-11-16 11:11:53,817 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 650 transitions, 6791 flow [2022-11-16 11:11:53,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-16 11:11:53,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2022-11-16 11:11:53,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 5217 transitions. [2022-11-16 11:11:53,828 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6275712739083363 [2022-11-16 11:11:53,828 INFO L72 ComplementDD]: Start complementDD. Operand 51 states and 5217 transitions. [2022-11-16 11:11:53,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 5217 transitions. [2022-11-16 11:11:53,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:11:53,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 51 states and 5217 transitions. [2022-11-16 11:11:53,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 52 states, 51 states have (on average 102.29411764705883) internal successors, (5217), 51 states have internal predecessors, (5217), 0 states have call successors, (0), 0 states 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 11:11:53,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 52 states, 52 states have (on average 163.0) internal successors, (8476), 52 states have internal predecessors, (8476), 0 states have call successors, (0), 0 states 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 11:11:53,860 INFO L81 ComplementDD]: Finished complementDD. Result has 52 states, 52 states have (on average 163.0) internal successors, (8476), 52 states have internal predecessors, (8476), 0 states have call successors, (0), 0 states 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 11:11:53,860 INFO L175 Difference]: Start difference. First operand has 295 places, 410 transitions, 4159 flow. Second operand 51 states and 5217 transitions. [2022-11-16 11:11:53,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 650 transitions, 6791 flow [2022-11-16 11:11:54,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 650 transitions, 6619 flow, removed 64 selfloop flow, removed 11 redundant places. [2022-11-16 11:11:54,182 INFO L231 Difference]: Finished difference. Result has 341 places, 452 transitions, 5289 flow [2022-11-16 11:11:54,183 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=3995, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=238, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=5289, PETRI_PLACES=341, PETRI_TRANSITIONS=452} [2022-11-16 11:11:54,183 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 207 predicate places. [2022-11-16 11:11:54,184 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 452 transitions, 5289 flow [2022-11-16 11:11:54,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:11:54,185 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:11:54,185 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:11:54,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:11:54,185 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 11:11:54,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:11:54,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1954060821, now seen corresponding path program 2 times [2022-11-16 11:11:54,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:11:54,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506487748] [2022-11-16 11:11:54,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:11:54,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:11:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:11:56,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:11:56,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:11:56,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506487748] [2022-11-16 11:11:56,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506487748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:11:56,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:11:56,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-16 11:11:56,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100311884] [2022-11-16 11:11:56,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:11:56,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 11:11:56,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:11:56,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 11:11:56,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:11:56,122 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-16 11:11:56,124 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 452 transitions, 5289 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:11:56,124 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:11:56,124 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-16 11:11:56,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:02,844 INFO L130 PetriNetUnfolder]: 4311/13548 cut-off events. [2022-11-16 11:12:02,844 INFO L131 PetriNetUnfolder]: For 71729/146139 co-relation queries the response was YES. [2022-11-16 11:12:02,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44950 conditions, 13548 events. 4311/13548 cut-off events. For 71729/146139 co-relation queries the response was YES. Maximal size of possible extension queue 508. Compared 148984 event pairs, 1371 based on Foata normal form. 1494/13903 useless extension candidates. Maximal degree in co-relation 43017. Up to 4282 conditions per place. [2022-11-16 11:12:03,011 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 229 selfloop transitions, 283 changer transitions 16/598 dead transitions. [2022-11-16 11:12:03,012 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 598 transitions, 7628 flow [2022-11-16 11:12:03,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-16 11:12:03,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-16 11:12:03,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2701 transitions. [2022-11-16 11:12:03,018 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6373289287399717 [2022-11-16 11:12:03,018 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2701 transitions. [2022-11-16 11:12:03,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2701 transitions. [2022-11-16 11:12:03,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:03,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2701 transitions. [2022-11-16 11:12:03,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 103.88461538461539) internal successors, (2701), 26 states have internal predecessors, (2701), 0 states have call successors, (0), 0 states 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 11:12:03,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 163.0) internal successors, (4401), 27 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states 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 11:12:03,034 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 163.0) internal successors, (4401), 27 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states 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 11:12:03,034 INFO L175 Difference]: Start difference. First operand has 341 places, 452 transitions, 5289 flow. Second operand 26 states and 2701 transitions. [2022-11-16 11:12:03,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 598 transitions, 7628 flow [2022-11-16 11:12:03,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 598 transitions, 7197 flow, removed 37 selfloop flow, removed 46 redundant places. [2022-11-16 11:12:03,676 INFO L231 Difference]: Finished difference. Result has 326 places, 490 transitions, 6204 flow [2022-11-16 11:12:03,677 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=4881, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=245, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=6204, PETRI_PLACES=326, PETRI_TRANSITIONS=490} [2022-11-16 11:12:03,679 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 192 predicate places. [2022-11-16 11:12:03,680 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 490 transitions, 6204 flow [2022-11-16 11:12:03,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:12:03,681 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:03,682 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:12:03,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:12:03,683 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 11:12:03,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:03,684 INFO L85 PathProgramCache]: Analyzing trace with hash -266638708, now seen corresponding path program 2 times [2022-11-16 11:12:03,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:03,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774755348] [2022-11-16 11:12:03,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:03,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:05,645 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 11:12:05,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:05,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774755348] [2022-11-16 11:12:05,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774755348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:05,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:05,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-16 11:12:05,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537728068] [2022-11-16 11:12:05,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:05,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 11:12:05,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:05,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 11:12:05,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:12:05,652 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-16 11:12:05,656 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 490 transitions, 6204 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:12:05,657 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:05,657 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-16 11:12:05,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:13,292 INFO L130 PetriNetUnfolder]: 4482/14023 cut-off events. [2022-11-16 11:12:13,292 INFO L131 PetriNetUnfolder]: For 93481/237473 co-relation queries the response was YES. [2022-11-16 11:12:13,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48749 conditions, 14023 events. 4482/14023 cut-off events. For 93481/237473 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 155548 event pairs, 1345 based on Foata normal form. 1764/14598 useless extension candidates. Maximal degree in co-relation 46832. Up to 4322 conditions per place. [2022-11-16 11:12:13,460 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 226 selfloop transitions, 309 changer transitions 16/621 dead transitions. [2022-11-16 11:12:13,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 621 transitions, 8468 flow [2022-11-16 11:12:13,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-16 11:12:13,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-16 11:12:13,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2699 transitions. [2022-11-16 11:12:13,467 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6368570080226522 [2022-11-16 11:12:13,467 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2699 transitions. [2022-11-16 11:12:13,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2699 transitions. [2022-11-16 11:12:13,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:13,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2699 transitions. [2022-11-16 11:12:13,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 103.8076923076923) internal successors, (2699), 26 states have internal predecessors, (2699), 0 states have call successors, (0), 0 states 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 11:12:13,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 163.0) internal successors, (4401), 27 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states 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 11:12:13,484 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 163.0) internal successors, (4401), 27 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states 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 11:12:13,485 INFO L175 Difference]: Start difference. First operand has 326 places, 490 transitions, 6204 flow. Second operand 26 states and 2699 transitions. [2022-11-16 11:12:13,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 621 transitions, 8468 flow [2022-11-16 11:12:14,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 621 transitions, 8189 flow, removed 71 selfloop flow, removed 15 redundant places. [2022-11-16 11:12:14,226 INFO L231 Difference]: Finished difference. Result has 341 places, 516 transitions, 7195 flow [2022-11-16 11:12:14,227 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=5985, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=283, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=7195, PETRI_PLACES=341, PETRI_TRANSITIONS=516} [2022-11-16 11:12:14,228 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 207 predicate places. [2022-11-16 11:12:14,228 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 516 transitions, 7195 flow [2022-11-16 11:12:14,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:12:14,229 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:14,230 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:12:14,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:12:14,230 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 11:12:14,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:14,231 INFO L85 PathProgramCache]: Analyzing trace with hash 20248622, now seen corresponding path program 3 times [2022-11-16 11:12:14,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:14,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708403750] [2022-11-16 11:12:14,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:14,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:16,055 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 11:12:16,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:16,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708403750] [2022-11-16 11:12:16,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708403750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:16,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:16,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-16 11:12:16,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502889059] [2022-11-16 11:12:16,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:16,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 11:12:16,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:16,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 11:12:16,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:12:16,060 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-16 11:12:16,062 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 516 transitions, 7195 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:12:16,062 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:16,062 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-16 11:12:16,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:23,731 INFO L130 PetriNetUnfolder]: 4473/14216 cut-off events. [2022-11-16 11:12:23,731 INFO L131 PetriNetUnfolder]: For 93193/209584 co-relation queries the response was YES. [2022-11-16 11:12:23,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50744 conditions, 14216 events. 4473/14216 cut-off events. For 93193/209584 co-relation queries the response was YES. Maximal size of possible extension queue 540. Compared 159478 event pairs, 1415 based on Foata normal form. 1916/14959 useless extension candidates. Maximal degree in co-relation 48774. Up to 4138 conditions per place. [2022-11-16 11:12:23,893 INFO L137 encePairwiseOnDemand]: 136/163 looper letters, 218 selfloop transitions, 313 changer transitions 13/614 dead transitions. [2022-11-16 11:12:23,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 614 transitions, 8904 flow [2022-11-16 11:12:23,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-16 11:12:23,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-16 11:12:23,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2697 transitions. [2022-11-16 11:12:23,906 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6363850873053327 [2022-11-16 11:12:23,907 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2697 transitions. [2022-11-16 11:12:23,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2697 transitions. [2022-11-16 11:12:23,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:23,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2697 transitions. [2022-11-16 11:12:23,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 103.73076923076923) internal successors, (2697), 26 states have internal predecessors, (2697), 0 states have call successors, (0), 0 states 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 11:12:23,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 163.0) internal successors, (4401), 27 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states 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 11:12:23,933 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 163.0) internal successors, (4401), 27 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states 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 11:12:23,933 INFO L175 Difference]: Start difference. First operand has 341 places, 516 transitions, 7195 flow. Second operand 26 states and 2697 transitions. [2022-11-16 11:12:23,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 614 transitions, 8904 flow [2022-11-16 11:12:24,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 614 transitions, 8661 flow, removed 28 selfloop flow, removed 18 redundant places. [2022-11-16 11:12:24,539 INFO L231 Difference]: Finished difference. Result has 352 places, 519 transitions, 7749 flow [2022-11-16 11:12:24,540 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=6962, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=310, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=7749, PETRI_PLACES=352, PETRI_TRANSITIONS=519} [2022-11-16 11:12:24,541 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 218 predicate places. [2022-11-16 11:12:24,541 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 519 transitions, 7749 flow [2022-11-16 11:12:24,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:12:24,542 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:24,543 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:12:24,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:12:24,543 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 11:12:24,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:24,544 INFO L85 PathProgramCache]: Analyzing trace with hash 864554402, now seen corresponding path program 4 times [2022-11-16 11:12:24,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:24,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018235653] [2022-11-16 11:12:24,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:24,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:26,462 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 11:12:26,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:26,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018235653] [2022-11-16 11:12:26,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018235653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:26,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:26,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-16 11:12:26,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993236753] [2022-11-16 11:12:26,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:26,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 11:12:26,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:26,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 11:12:26,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:12:26,467 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-16 11:12:26,470 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 519 transitions, 7749 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:12:26,470 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:26,470 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-16 11:12:26,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:37,526 INFO L130 PetriNetUnfolder]: 5086/15439 cut-off events. [2022-11-16 11:12:37,526 INFO L131 PetriNetUnfolder]: For 113591/226995 co-relation queries the response was YES. [2022-11-16 11:12:37,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58836 conditions, 15439 events. 5086/15439 cut-off events. For 113591/226995 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 171943 event pairs, 1889 based on Foata normal form. 1360/15473 useless extension candidates. Maximal degree in co-relation 56822. Up to 6228 conditions per place. [2022-11-16 11:12:37,722 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 475 selfloop transitions, 196 changer transitions 10/751 dead transitions. [2022-11-16 11:12:37,722 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 751 transitions, 11152 flow [2022-11-16 11:12:37,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-16 11:12:37,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2022-11-16 11:12:37,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 4020 transitions. [2022-11-16 11:12:37,729 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6323737612081171 [2022-11-16 11:12:37,730 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 4020 transitions. [2022-11-16 11:12:37,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 4020 transitions. [2022-11-16 11:12:37,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:37,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 4020 transitions. [2022-11-16 11:12:37,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 103.07692307692308) internal successors, (4020), 39 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states 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 11:12:37,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 163.0) internal successors, (6520), 40 states have internal predecessors, (6520), 0 states have call successors, (0), 0 states 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 11:12:37,753 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 163.0) internal successors, (6520), 40 states have internal predecessors, (6520), 0 states have call successors, (0), 0 states 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 11:12:37,753 INFO L175 Difference]: Start difference. First operand has 352 places, 519 transitions, 7749 flow. Second operand 39 states and 4020 transitions. [2022-11-16 11:12:37,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 751 transitions, 11152 flow [2022-11-16 11:12:38,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 751 transitions, 10777 flow, removed 28 selfloop flow, removed 19 redundant places. [2022-11-16 11:12:38,583 INFO L231 Difference]: Finished difference. Result has 385 places, 600 transitions, 9281 flow [2022-11-16 11:12:38,584 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=7434, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=9281, PETRI_PLACES=385, PETRI_TRANSITIONS=600} [2022-11-16 11:12:38,585 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 251 predicate places. [2022-11-16 11:12:38,585 INFO L495 AbstractCegarLoop]: Abstraction has has 385 places, 600 transitions, 9281 flow [2022-11-16 11:12:38,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:12:38,586 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:38,586 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:12:38,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:12:38,586 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 11:12:38,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:38,587 INFO L85 PathProgramCache]: Analyzing trace with hash 864554018, now seen corresponding path program 2 times [2022-11-16 11:12:38,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:38,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923372950] [2022-11-16 11:12:38,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:38,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:40,658 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 11:12:40,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:40,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923372950] [2022-11-16 11:12:40,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923372950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:40,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:40,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-16 11:12:40,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047340796] [2022-11-16 11:12:40,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:40,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 11:12:40,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:40,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 11:12:40,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:12:40,667 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-16 11:12:40,670 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 600 transitions, 9281 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:12:40,670 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:40,670 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-16 11:12:40,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:12:50,422 INFO L130 PetriNetUnfolder]: 5334/16317 cut-off events. [2022-11-16 11:12:50,423 INFO L131 PetriNetUnfolder]: For 147575/300400 co-relation queries the response was YES. [2022-11-16 11:12:50,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65836 conditions, 16317 events. 5334/16317 cut-off events. For 147575/300400 co-relation queries the response was YES. Maximal size of possible extension queue 657. Compared 184685 event pairs, 1960 based on Foata normal form. 1244/16139 useless extension candidates. Maximal degree in co-relation 63849. Up to 5209 conditions per place. [2022-11-16 11:12:50,696 INFO L137 encePairwiseOnDemand]: 134/163 looper letters, 479 selfloop transitions, 292 changer transitions 14/855 dead transitions. [2022-11-16 11:12:50,697 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 855 transitions, 13384 flow [2022-11-16 11:12:50,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-16 11:12:50,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-11-16 11:12:50,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3954 transitions. [2022-11-16 11:12:50,703 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6383597029383274 [2022-11-16 11:12:50,704 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 3954 transitions. [2022-11-16 11:12:50,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 3954 transitions. [2022-11-16 11:12:50,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:50,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 3954 transitions. [2022-11-16 11:12:50,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 104.05263157894737) internal successors, (3954), 38 states have internal predecessors, (3954), 0 states have call successors, (0), 0 states 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 11:12:50,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 163.0) internal successors, (6357), 39 states have internal predecessors, (6357), 0 states have call successors, (0), 0 states 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 11:12:50,723 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 163.0) internal successors, (6357), 39 states have internal predecessors, (6357), 0 states have call successors, (0), 0 states 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 11:12:50,723 INFO L175 Difference]: Start difference. First operand has 385 places, 600 transitions, 9281 flow. Second operand 38 states and 3954 transitions. [2022-11-16 11:12:50,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 855 transitions, 13384 flow [2022-11-16 11:12:51,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 855 transitions, 13181 flow, removed 66 selfloop flow, removed 12 redundant places. [2022-11-16 11:12:51,900 INFO L231 Difference]: Finished difference. Result has 418 places, 634 transitions, 10415 flow [2022-11-16 11:12:51,900 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=9144, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=258, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=10415, PETRI_PLACES=418, PETRI_TRANSITIONS=634} [2022-11-16 11:12:51,901 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 284 predicate places. [2022-11-16 11:12:51,901 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 634 transitions, 10415 flow [2022-11-16 11:12:51,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:12:51,902 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:12:51,902 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:12:51,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:12:51,902 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 11:12:51,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:51,903 INFO L85 PathProgramCache]: Analyzing trace with hash 630122130, now seen corresponding path program 5 times [2022-11-16 11:12:51,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:51,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492826147] [2022-11-16 11:12:51,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:51,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:51,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:53,777 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 11:12:53,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:53,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492826147] [2022-11-16 11:12:53,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492826147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:53,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:53,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-16 11:12:53,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818224137] [2022-11-16 11:12:53,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:53,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 11:12:53,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:53,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 11:12:53,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:12:53,782 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-16 11:12:53,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 634 transitions, 10415 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:12:53,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:12:53,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-16 11:12:53,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:13:03,182 INFO L130 PetriNetUnfolder]: 5548/16747 cut-off events. [2022-11-16 11:13:03,183 INFO L131 PetriNetUnfolder]: For 182430/369345 co-relation queries the response was YES. [2022-11-16 11:13:03,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74117 conditions, 16747 events. 5548/16747 cut-off events. For 182430/369345 co-relation queries the response was YES. Maximal size of possible extension queue 689. Compared 189391 event pairs, 2140 based on Foata normal form. 1654/16941 useless extension candidates. Maximal degree in co-relation 71924. Up to 7059 conditions per place. [2022-11-16 11:13:03,381 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 506 selfloop transitions, 199 changer transitions 13/788 dead transitions. [2022-11-16 11:13:03,381 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 788 transitions, 13359 flow [2022-11-16 11:13:03,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-16 11:13:03,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-11-16 11:13:03,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3202 transitions. [2022-11-16 11:13:03,386 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.633682960617455 [2022-11-16 11:13:03,387 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 3202 transitions. [2022-11-16 11:13:03,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 3202 transitions. [2022-11-16 11:13:03,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:13:03,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 3202 transitions. [2022-11-16 11:13:03,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 103.29032258064517) internal successors, (3202), 31 states have internal predecessors, (3202), 0 states have call successors, (0), 0 states 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 11:13:03,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 163.0) internal successors, (5216), 32 states have internal predecessors, (5216), 0 states have call successors, (0), 0 states 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 11:13:03,399 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 163.0) internal successors, (5216), 32 states have internal predecessors, (5216), 0 states have call successors, (0), 0 states 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 11:13:03,399 INFO L175 Difference]: Start difference. First operand has 418 places, 634 transitions, 10415 flow. Second operand 31 states and 3202 transitions. [2022-11-16 11:13:03,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 788 transitions, 13359 flow [2022-11-16 11:13:04,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 788 transitions, 12991 flow, removed 55 selfloop flow, removed 21 redundant places. [2022-11-16 11:13:04,701 INFO L231 Difference]: Finished difference. Result has 433 places, 665 transitions, 11228 flow [2022-11-16 11:13:04,701 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=10103, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=634, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=11228, PETRI_PLACES=433, PETRI_TRANSITIONS=665} [2022-11-16 11:13:04,702 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 299 predicate places. [2022-11-16 11:13:04,702 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 665 transitions, 11228 flow [2022-11-16 11:13:04,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:13:04,702 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:13:04,703 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:13:04,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:13:04,703 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 11:13:04,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:13:04,703 INFO L85 PathProgramCache]: Analyzing trace with hash 630121746, now seen corresponding path program 3 times [2022-11-16 11:13:04,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:13:04,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228439475] [2022-11-16 11:13:04,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:13:04,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:13:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:13:06,304 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 11:13:06,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:13:06,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228439475] [2022-11-16 11:13:06,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228439475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:13:06,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:13:06,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-16 11:13:06,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619942499] [2022-11-16 11:13:06,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:13:06,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 11:13:06,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:13:06,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 11:13:06,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:13:06,311 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-16 11:13:06,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 665 transitions, 11228 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:13:06,314 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:13:06,314 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-16 11:13:06,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:13:19,175 INFO L130 PetriNetUnfolder]: 5828/17656 cut-off events. [2022-11-16 11:13:19,175 INFO L131 PetriNetUnfolder]: For 245807/464840 co-relation queries the response was YES. [2022-11-16 11:13:19,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82372 conditions, 17656 events. 5828/17656 cut-off events. For 245807/464840 co-relation queries the response was YES. Maximal size of possible extension queue 731. Compared 201112 event pairs, 2170 based on Foata normal form. 1916/18012 useless extension candidates. Maximal degree in co-relation 80236. Up to 5744 conditions per place. [2022-11-16 11:13:19,530 INFO L137 encePairwiseOnDemand]: 134/163 looper letters, 492 selfloop transitions, 331 changer transitions 15/908 dead transitions. [2022-11-16 11:13:19,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 908 transitions, 15756 flow [2022-11-16 11:13:19,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-16 11:13:19,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-11-16 11:13:19,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3741 transitions. [2022-11-16 11:13:19,537 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6375255623721882 [2022-11-16 11:13:19,537 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 3741 transitions. [2022-11-16 11:13:19,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 3741 transitions. [2022-11-16 11:13:19,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:13:19,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 3741 transitions. [2022-11-16 11:13:19,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 103.91666666666667) internal successors, (3741), 36 states have internal predecessors, (3741), 0 states have call successors, (0), 0 states 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 11:13:19,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 163.0) internal successors, (6031), 37 states have internal predecessors, (6031), 0 states have call successors, (0), 0 states 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 11:13:19,794 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 163.0) internal successors, (6031), 37 states have internal predecessors, (6031), 0 states have call successors, (0), 0 states 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 11:13:19,811 INFO L175 Difference]: Start difference. First operand has 433 places, 665 transitions, 11228 flow. Second operand 36 states and 3741 transitions. [2022-11-16 11:13:19,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 908 transitions, 15756 flow [2022-11-16 11:13:21,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 908 transitions, 15509 flow, removed 57 selfloop flow, removed 15 redundant places. [2022-11-16 11:13:21,617 INFO L231 Difference]: Finished difference. Result has 462 places, 699 transitions, 12580 flow [2022-11-16 11:13:21,618 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=11032, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=665, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=297, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=12580, PETRI_PLACES=462, PETRI_TRANSITIONS=699} [2022-11-16 11:13:21,619 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 328 predicate places. [2022-11-16 11:13:21,619 INFO L495 AbstractCegarLoop]: Abstraction has has 462 places, 699 transitions, 12580 flow [2022-11-16 11:13:21,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:13:21,620 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:13:21,620 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:13:21,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:13:21,621 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 11:13:21,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:13:21,621 INFO L85 PathProgramCache]: Analyzing trace with hash 917009460, now seen corresponding path program 6 times [2022-11-16 11:13:21,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:13:21,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468129414] [2022-11-16 11:13:21,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:13:21,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:13:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:13:23,421 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 11:13:23,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:13:23,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468129414] [2022-11-16 11:13:23,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468129414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:13:23,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:13:23,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-16 11:13:23,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094583992] [2022-11-16 11:13:23,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:13:23,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 11:13:23,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:13:23,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 11:13:23,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:13:23,426 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-16 11:13:23,428 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 699 transitions, 12580 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:13:23,428 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:13:23,428 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-16 11:13:23,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:13:33,095 INFO L130 PetriNetUnfolder]: 5914/18366 cut-off events. [2022-11-16 11:13:33,095 INFO L131 PetriNetUnfolder]: For 293086/552538 co-relation queries the response was YES. [2022-11-16 11:13:33,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90650 conditions, 18366 events. 5914/18366 cut-off events. For 293086/552538 co-relation queries the response was YES. Maximal size of possible extension queue 743. Compared 213577 event pairs, 2433 based on Foata normal form. 1440/18187 useless extension candidates. Maximal degree in co-relation 88289. Up to 7835 conditions per place. [2022-11-16 11:13:33,668 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 515 selfloop transitions, 210 changer transitions 12/807 dead transitions. [2022-11-16 11:13:33,668 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 807 transitions, 15017 flow [2022-11-16 11:13:33,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-16 11:13:33,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-16 11:13:33,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 2996 transitions. [2022-11-16 11:13:33,672 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.633805796488259 [2022-11-16 11:13:33,672 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 2996 transitions. [2022-11-16 11:13:33,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 2996 transitions. [2022-11-16 11:13:33,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:13:33,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 2996 transitions. [2022-11-16 11:13:33,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 103.3103448275862) internal successors, (2996), 29 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states 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 11:13:33,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 163.0) internal successors, (4890), 30 states have internal predecessors, (4890), 0 states have call successors, (0), 0 states 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 11:13:33,683 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 163.0) internal successors, (4890), 30 states have internal predecessors, (4890), 0 states have call successors, (0), 0 states 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 11:13:33,683 INFO L175 Difference]: Start difference. First operand has 462 places, 699 transitions, 12580 flow. Second operand 29 states and 2996 transitions. [2022-11-16 11:13:33,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 807 transitions, 15017 flow [2022-11-16 11:13:35,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 807 transitions, 14518 flow, removed 76 selfloop flow, removed 19 redundant places. [2022-11-16 11:13:35,111 INFO L231 Difference]: Finished difference. Result has 475 places, 704 transitions, 12720 flow [2022-11-16 11:13:35,112 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=12121, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=699, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=205, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=12720, PETRI_PLACES=475, PETRI_TRANSITIONS=704} [2022-11-16 11:13:35,113 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 341 predicate places. [2022-11-16 11:13:35,113 INFO L495 AbstractCegarLoop]: Abstraction has has 475 places, 704 transitions, 12720 flow [2022-11-16 11:13:35,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states 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 11:13:35,113 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:13:35,113 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:13:35,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:13:35,113 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 11:13:35,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:13:35,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1742990780, now seen corresponding path program 7 times [2022-11-16 11:13:35,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:13:35,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55126383] [2022-11-16 11:13:35,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:13:35,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:13:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat