./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 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_c155d637-e21d-4a80-872b-041a7acb93b8/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c155d637-e21d-4a80-872b-041a7acb93b8/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_c155d637-e21d-4a80-872b-041a7acb93b8/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c155d637-e21d-4a80-872b-041a7acb93b8/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c155d637-e21d-4a80-872b-041a7acb93b8/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_c155d637-e21d-4a80-872b-041a7acb93b8/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 a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:12:09,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:12:09,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:12:09,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:12:09,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:12:09,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:12:09,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:12:09,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:12:09,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:12:09,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:12:09,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:12:09,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:12:09,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:12:09,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:12:09,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:12:09,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:12:09,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:12:09,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:12:09,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:12:09,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:12:09,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:12:09,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:12:09,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:12:09,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:12:09,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:12:09,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:12:09,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:12:09,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:12:09,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:12:09,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:12:09,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:12:09,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:12:09,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:12:09,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:12:09,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:12:09,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:12:09,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:12:09,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:12:09,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:12:09,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:12:09,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:12:09,854 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c155d637-e21d-4a80-872b-041a7acb93b8/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 12:12:09,906 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:12:09,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:12:09,906 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:12:09,907 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:12:09,907 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:12:09,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:12:09,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:12:09,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:12:09,909 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:12:09,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:12:09,909 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:12:09,910 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:12:09,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:12:09,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:12:09,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:12:09,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:12:09,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:12:09,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:12:09,911 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 12:12:09,912 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:12:09,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:12:09,912 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:12:09,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:12:09,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:12:09,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:12:09,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:12:09,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:12:09,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:12:09,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:12:09,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:12:09,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:12:09,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:12:09,921 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:12:09,922 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:12:09,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:12:09,922 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_c155d637-e21d-4a80-872b-041a7acb93b8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c155d637-e21d-4a80-872b-041a7acb93b8/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 [2022-11-16 12:12:10,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:12:10,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:12:10,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:12:10,392 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:12:10,393 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:12:10,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c155d637-e21d-4a80-872b-041a7acb93b8/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-11-16 12:12:10,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c155d637-e21d-4a80-872b-041a7acb93b8/bin/uautomizer-tPACEb0tL8/data/0d9890404/3d5cb0b6e0eb419aab7636cd24d598d7/FLAGf5766a65f [2022-11-16 12:12:11,285 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:12:11,286 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c155d637-e21d-4a80-872b-041a7acb93b8/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-11-16 12:12:11,310 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c155d637-e21d-4a80-872b-041a7acb93b8/bin/uautomizer-tPACEb0tL8/data/0d9890404/3d5cb0b6e0eb419aab7636cd24d598d7/FLAGf5766a65f [2022-11-16 12:12:11,399 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c155d637-e21d-4a80-872b-041a7acb93b8/bin/uautomizer-tPACEb0tL8/data/0d9890404/3d5cb0b6e0eb419aab7636cd24d598d7 [2022-11-16 12:12:11,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:12:11,404 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:12:11,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:12:11,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:12:11,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:12:11,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:12:11" (1/1) ... [2022-11-16 12:12:11,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e4d521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:11, skipping insertion in model container [2022-11-16 12:12:11,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:12:11" (1/1) ... [2022-11-16 12:12:11,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:12:11,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:12:11,731 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 12:12:12,715 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_c155d637-e21d-4a80-872b-041a7acb93b8/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-11-16 12:12:12,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:12:12,799 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:12:12,817 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 12:12:12,885 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_c155d637-e21d-4a80-872b-041a7acb93b8/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-11-16 12:12:12,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:12:13,019 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:12:13,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:13 WrapperNode [2022-11-16 12:12:13,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:12:13,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:12:13,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:12:13,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:12:13,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:13" (1/1) ... [2022-11-16 12:12:13,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:13" (1/1) ... [2022-11-16 12:12:13,153 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-11-16 12:12:13,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:12:13,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:12:13,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:12:13,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:12:13,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:13" (1/1) ... [2022-11-16 12:12:13,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:13" (1/1) ... [2022-11-16 12:12:13,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:13" (1/1) ... [2022-11-16 12:12:13,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:13" (1/1) ... [2022-11-16 12:12:13,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:13" (1/1) ... [2022-11-16 12:12:13,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:13" (1/1) ... [2022-11-16 12:12:13,229 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:13" (1/1) ... [2022-11-16 12:12:13,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:13" (1/1) ... [2022-11-16 12:12:13,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:12:13,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:12:13,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:12:13,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:12:13,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:13" (1/1) ... [2022-11-16 12:12:13,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:12:13,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c155d637-e21d-4a80-872b-041a7acb93b8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:12:13,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c155d637-e21d-4a80-872b-041a7acb93b8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:12:13,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c155d637-e21d-4a80-872b-041a7acb93b8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:12:13,377 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:12:13,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:12:13,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:12:13,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:12:13,378 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:12:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:12:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:12:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:12:13,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:12:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-16 12:12:13,380 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-16 12:12:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:12:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:12:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:12:13,383 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 12:12:13,828 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:12:13,831 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:12:14,240 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:12:14,304 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:12:14,304 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:12:14,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:12:14 BoogieIcfgContainer [2022-11-16 12:12:14,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:12:14,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:12:14,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:12:14,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:12:14,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:12:11" (1/3) ... [2022-11-16 12:12:14,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d84dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:12:14, skipping insertion in model container [2022-11-16 12:12:14,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:12:13" (2/3) ... [2022-11-16 12:12:14,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d84dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:12:14, skipping insertion in model container [2022-11-16 12:12:14,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:12:14" (3/3) ... [2022-11-16 12:12:14,325 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2022-11-16 12:12:14,337 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:12:14,352 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:12:14,352 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 12:12:14,352 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:12:14,451 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 12:12:14,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 173 transitions, 362 flow [2022-11-16 12:12:14,637 INFO L130 PetriNetUnfolder]: 8/216 cut-off events. [2022-11-16 12:12:14,637 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:12:14,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 216 events. 8/216 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 349 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2022-11-16 12:12:14,645 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 173 transitions, 362 flow [2022-11-16 12:12:14,652 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 139 transitions, 287 flow [2022-11-16 12:12:14,664 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:12:14,673 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;@ea45a4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:12:14,673 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-16 12:12:14,696 INFO L130 PetriNetUnfolder]: 0/69 cut-off events. [2022-11-16 12:12:14,696 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:12:14,696 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:12:14,697 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:12:14,698 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 12:12:14,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:14,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1131939205, now seen corresponding path program 1 times [2022-11-16 12:12:14,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:14,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343714233] [2022-11-16 12:12:14,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:14,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:15,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:17,451 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 12:12:17,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:17,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343714233] [2022-11-16 12:12:17,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343714233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:17,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:17,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 12:12:17,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230216599] [2022-11-16 12:12:17,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:17,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 12:12:17,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:17,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 12:12:17,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:12:17,515 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 173 [2022-11-16 12:12:17,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 139 transitions, 287 flow. Second operand has 15 states, 15 states have (on average 114.66666666666667) internal successors, (1720), 15 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:17,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:12:17,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 173 [2022-11-16 12:12:17,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:12:20,751 INFO L130 PetriNetUnfolder]: 1577/5303 cut-off events. [2022-11-16 12:12:20,752 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-11-16 12:12:20,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7960 conditions, 5303 events. 1577/5303 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 48623 event pairs, 1104 based on Foata normal form. 160/4738 useless extension candidates. Maximal degree in co-relation 7751. Up to 1945 conditions per place. [2022-11-16 12:12:20,800 INFO L137 encePairwiseOnDemand]: 153/173 looper letters, 82 selfloop transitions, 23 changer transitions 2/194 dead transitions. [2022-11-16 12:12:20,800 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 194 transitions, 617 flow [2022-11-16 12:12:20,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:12:20,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 12:12:20,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2151 transitions. [2022-11-16 12:12:20,830 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6907514450867052 [2022-11-16 12:12:20,832 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2151 transitions. [2022-11-16 12:12:20,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2151 transitions. [2022-11-16 12:12:20,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:12:20,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2151 transitions. [2022-11-16 12:12:20,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 119.5) internal successors, (2151), 18 states have internal predecessors, (2151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:20,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 173.0) internal successors, (3287), 19 states have internal predecessors, (3287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:20,878 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 173.0) internal successors, (3287), 19 states have internal predecessors, (3287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:20,880 INFO L175 Difference]: Start difference. First operand has 144 places, 139 transitions, 287 flow. Second operand 18 states and 2151 transitions. [2022-11-16 12:12:20,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 194 transitions, 617 flow [2022-11-16 12:12:20,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 194 transitions, 609 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 12:12:20,899 INFO L231 Difference]: Finished difference. Result has 165 places, 150 transitions, 403 flow [2022-11-16 12:12:20,901 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=403, PETRI_PLACES=165, PETRI_TRANSITIONS=150} [2022-11-16 12:12:20,908 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 21 predicate places. [2022-11-16 12:12:20,909 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 150 transitions, 403 flow [2022-11-16 12:12:20,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 114.66666666666667) internal successors, (1720), 15 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:20,911 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:12:20,912 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:12:20,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:12:20,912 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 12:12:20,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:20,915 INFO L85 PathProgramCache]: Analyzing trace with hash -132118850, now seen corresponding path program 1 times [2022-11-16 12:12:20,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:20,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645099077] [2022-11-16 12:12:20,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:20,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:22,690 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 12:12:22,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:22,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645099077] [2022-11-16 12:12:22,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645099077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:22,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:22,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-16 12:12:22,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636941200] [2022-11-16 12:12:22,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:22,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 12:12:22,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:22,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 12:12:22,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-11-16 12:12:22,699 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-16 12:12:22,703 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 150 transitions, 403 flow. Second operand has 19 states, 19 states have (on average 105.6842105263158) internal successors, (2008), 19 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:22,704 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:12:22,704 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-16 12:12:22,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:12:26,479 INFO L130 PetriNetUnfolder]: 2139/6443 cut-off events. [2022-11-16 12:12:26,479 INFO L131 PetriNetUnfolder]: For 1311/1331 co-relation queries the response was YES. [2022-11-16 12:12:26,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11241 conditions, 6443 events. 2139/6443 cut-off events. For 1311/1331 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 59201 event pairs, 1327 based on Foata normal form. 83/5760 useless extension candidates. Maximal degree in co-relation 10514. Up to 2231 conditions per place. [2022-11-16 12:12:26,549 INFO L137 encePairwiseOnDemand]: 150/173 looper letters, 108 selfloop transitions, 44 changer transitions 2/233 dead transitions. [2022-11-16 12:12:26,549 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 233 transitions, 948 flow [2022-11-16 12:12:26,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:12:26,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 12:12:26,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2336 transitions. [2022-11-16 12:12:26,558 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6429947701624003 [2022-11-16 12:12:26,559 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2336 transitions. [2022-11-16 12:12:26,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2336 transitions. [2022-11-16 12:12:26,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:12:26,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2336 transitions. [2022-11-16 12:12:26,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 111.23809523809524) internal successors, (2336), 21 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:26,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:26,582 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:26,583 INFO L175 Difference]: Start difference. First operand has 165 places, 150 transitions, 403 flow. Second operand 21 states and 2336 transitions. [2022-11-16 12:12:26,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 233 transitions, 948 flow [2022-11-16 12:12:26,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 233 transitions, 937 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 12:12:26,612 INFO L231 Difference]: Finished difference. Result has 189 places, 179 transitions, 657 flow [2022-11-16 12:12:26,613 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=657, PETRI_PLACES=189, PETRI_TRANSITIONS=179} [2022-11-16 12:12:26,614 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 45 predicate places. [2022-11-16 12:12:26,615 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 179 transitions, 657 flow [2022-11-16 12:12:26,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 105.6842105263158) internal successors, (2008), 19 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:26,617 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:12:26,617 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:12:26,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:12:26,618 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 12:12:26,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:26,620 INFO L85 PathProgramCache]: Analyzing trace with hash 917909606, now seen corresponding path program 1 times [2022-11-16 12:12:26,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:26,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038448172] [2022-11-16 12:12:26,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:26,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:28,435 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 12:12:28,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:28,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038448172] [2022-11-16 12:12:28,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038448172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:28,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:28,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-16 12:12:28,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391643475] [2022-11-16 12:12:28,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:28,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 12:12:28,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:28,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 12:12:28,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-11-16 12:12:28,442 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-16 12:12:28,445 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 179 transitions, 657 flow. Second operand has 19 states, 19 states have (on average 105.73684210526316) internal successors, (2009), 19 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:28,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:12:28,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-16 12:12:28,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:12:33,342 INFO L130 PetriNetUnfolder]: 3596/12142 cut-off events. [2022-11-16 12:12:33,342 INFO L131 PetriNetUnfolder]: For 9709/10908 co-relation queries the response was YES. [2022-11-16 12:12:33,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23926 conditions, 12142 events. 3596/12142 cut-off events. For 9709/10908 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 129469 event pairs, 1864 based on Foata normal form. 4/11061 useless extension candidates. Maximal degree in co-relation 22441. Up to 5102 conditions per place. [2022-11-16 12:12:33,518 INFO L137 encePairwiseOnDemand]: 150/173 looper letters, 110 selfloop transitions, 64 changer transitions 5/266 dead transitions. [2022-11-16 12:12:33,518 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 266 transitions, 1404 flow [2022-11-16 12:12:33,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:12:33,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 12:12:33,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2324 transitions. [2022-11-16 12:12:33,527 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6396917148362236 [2022-11-16 12:12:33,527 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2324 transitions. [2022-11-16 12:12:33,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2324 transitions. [2022-11-16 12:12:33,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:12:33,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2324 transitions. [2022-11-16 12:12:33,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 110.66666666666667) internal successors, (2324), 21 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:33,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:33,548 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:33,548 INFO L175 Difference]: Start difference. First operand has 189 places, 179 transitions, 657 flow. Second operand 21 states and 2324 transitions. [2022-11-16 12:12:33,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 266 transitions, 1404 flow [2022-11-16 12:12:33,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 266 transitions, 1342 flow, removed 23 selfloop flow, removed 9 redundant places. [2022-11-16 12:12:33,613 INFO L231 Difference]: Finished difference. Result has 209 places, 216 transitions, 1068 flow [2022-11-16 12:12:33,613 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=619, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1068, PETRI_PLACES=209, PETRI_TRANSITIONS=216} [2022-11-16 12:12:33,614 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 65 predicate places. [2022-11-16 12:12:33,615 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 216 transitions, 1068 flow [2022-11-16 12:12:33,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 105.73684210526316) internal successors, (2009), 19 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:33,616 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:12:33,617 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:12:33,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:12:33,617 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 12:12:33,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:33,618 INFO L85 PathProgramCache]: Analyzing trace with hash 143972341, now seen corresponding path program 1 times [2022-11-16 12:12:33,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:33,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72510740] [2022-11-16 12:12:33,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:33,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:35,414 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 12:12:35,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:35,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72510740] [2022-11-16 12:12:35,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72510740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:35,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:35,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-16 12:12:35,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479426457] [2022-11-16 12:12:35,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:35,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-16 12:12:35,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:35,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-16 12:12:35,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-11-16 12:12:35,420 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-16 12:12:35,424 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 216 transitions, 1068 flow. Second operand has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:35,424 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:12:35,424 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-16 12:12:35,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:12:40,500 INFO L130 PetriNetUnfolder]: 3707/13201 cut-off events. [2022-11-16 12:12:40,500 INFO L131 PetriNetUnfolder]: For 10359/11283 co-relation queries the response was YES. [2022-11-16 12:12:40,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27294 conditions, 13201 events. 3707/13201 cut-off events. For 10359/11283 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 146501 event pairs, 2103 based on Foata normal form. 128/12331 useless extension candidates. Maximal degree in co-relation 25905. Up to 4096 conditions per place. [2022-11-16 12:12:40,665 INFO L137 encePairwiseOnDemand]: 152/173 looper letters, 145 selfloop transitions, 55 changer transitions 2/285 dead transitions. [2022-11-16 12:12:40,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 285 transitions, 1797 flow [2022-11-16 12:12:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:12:40,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:12:40,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2225 transitions. [2022-11-16 12:12:40,673 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6430635838150289 [2022-11-16 12:12:40,674 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2225 transitions. [2022-11-16 12:12:40,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2225 transitions. [2022-11-16 12:12:40,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:12:40,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2225 transitions. [2022-11-16 12:12:40,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 111.25) internal successors, (2225), 20 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:40,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 173.0) internal successors, (3633), 21 states have internal predecessors, (3633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:40,698 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 173.0) internal successors, (3633), 21 states have internal predecessors, (3633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:40,699 INFO L175 Difference]: Start difference. First operand has 209 places, 216 transitions, 1068 flow. Second operand 20 states and 2225 transitions. [2022-11-16 12:12:40,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 285 transitions, 1797 flow [2022-11-16 12:12:40,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 285 transitions, 1752 flow, removed 15 selfloop flow, removed 8 redundant places. [2022-11-16 12:12:40,809 INFO L231 Difference]: Finished difference. Result has 228 places, 236 transitions, 1354 flow [2022-11-16 12:12:40,810 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=1025, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1354, PETRI_PLACES=228, PETRI_TRANSITIONS=236} [2022-11-16 12:12:40,812 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 84 predicate places. [2022-11-16 12:12:40,812 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 236 transitions, 1354 flow [2022-11-16 12:12:40,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:40,814 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:12:40,814 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:12:40,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:12:40,815 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 12:12:40,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:40,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1389050335, now seen corresponding path program 1 times [2022-11-16 12:12:40,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:40,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549046904] [2022-11-16 12:12:40,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:40,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:42,726 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 12:12:42,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:42,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549046904] [2022-11-16 12:12:42,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549046904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:42,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:42,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-16 12:12:42,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842077269] [2022-11-16 12:12:42,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:42,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-16 12:12:42,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:42,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-16 12:12:42,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-11-16 12:12:42,734 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-16 12:12:42,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 236 transitions, 1354 flow. Second operand has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:42,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:12:42,738 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-16 12:12:42,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:12:47,951 INFO L130 PetriNetUnfolder]: 4530/15851 cut-off events. [2022-11-16 12:12:47,951 INFO L131 PetriNetUnfolder]: For 22560/24057 co-relation queries the response was YES. [2022-11-16 12:12:48,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36062 conditions, 15851 events. 4530/15851 cut-off events. For 22560/24057 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 179985 event pairs, 2181 based on Foata normal form. 130/14806 useless extension candidates. Maximal degree in co-relation 33943. Up to 5969 conditions per place. [2022-11-16 12:12:48,300 INFO L137 encePairwiseOnDemand]: 150/173 looper letters, 128 selfloop transitions, 98 changer transitions 5/322 dead transitions. [2022-11-16 12:12:48,300 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 322 transitions, 2418 flow [2022-11-16 12:12:48,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:12:48,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 12:12:48,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2326 transitions. [2022-11-16 12:12:48,313 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.640242224057253 [2022-11-16 12:12:48,314 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2326 transitions. [2022-11-16 12:12:48,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2326 transitions. [2022-11-16 12:12:48,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:12:48,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2326 transitions. [2022-11-16 12:12:48,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 110.76190476190476) internal successors, (2326), 21 states have internal predecessors, (2326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:48,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:48,337 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:48,338 INFO L175 Difference]: Start difference. First operand has 228 places, 236 transitions, 1354 flow. Second operand 21 states and 2326 transitions. [2022-11-16 12:12:48,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 322 transitions, 2418 flow [2022-11-16 12:12:48,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 322 transitions, 2353 flow, removed 23 selfloop flow, removed 10 redundant places. [2022-11-16 12:12:48,524 INFO L231 Difference]: Finished difference. Result has 246 places, 276 transitions, 2015 flow [2022-11-16 12:12:48,525 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=1313, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2015, PETRI_PLACES=246, PETRI_TRANSITIONS=276} [2022-11-16 12:12:48,529 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 102 predicate places. [2022-11-16 12:12:48,530 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 276 transitions, 2015 flow [2022-11-16 12:12:48,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:48,531 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:12:48,531 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:12:48,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:12:48,532 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 12:12:48,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:48,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1253474045, now seen corresponding path program 2 times [2022-11-16 12:12:48,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:48,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433716328] [2022-11-16 12:12:48,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:48,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:50,156 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 12:12:50,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:50,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433716328] [2022-11-16 12:12:50,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433716328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:50,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:50,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-16 12:12:50,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931363696] [2022-11-16 12:12:50,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:50,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-16 12:12:50,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:50,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-16 12:12:50,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-11-16 12:12:50,162 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-16 12:12:50,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 276 transitions, 2015 flow. Second operand has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:50,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:12:50,165 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-16 12:12:50,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:12:55,920 INFO L130 PetriNetUnfolder]: 4926/17512 cut-off events. [2022-11-16 12:12:55,921 INFO L131 PetriNetUnfolder]: For 31892/33200 co-relation queries the response was YES. [2022-11-16 12:12:56,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42359 conditions, 17512 events. 4926/17512 cut-off events. For 31892/33200 co-relation queries the response was YES. Maximal size of possible extension queue 505. Compared 203493 event pairs, 2483 based on Foata normal form. 130/16374 useless extension candidates. Maximal degree in co-relation 39619. Up to 5987 conditions per place. [2022-11-16 12:12:56,202 INFO L137 encePairwiseOnDemand]: 150/173 looper letters, 132 selfloop transitions, 118 changer transitions 5/346 dead transitions. [2022-11-16 12:12:56,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 346 transitions, 3080 flow [2022-11-16 12:12:56,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:12:56,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 12:12:56,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2325 transitions. [2022-11-16 12:12:56,210 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6399669694467383 [2022-11-16 12:12:56,210 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2325 transitions. [2022-11-16 12:12:56,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2325 transitions. [2022-11-16 12:12:56,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:12:56,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2325 transitions. [2022-11-16 12:12:56,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 110.71428571428571) internal successors, (2325), 21 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:56,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:56,232 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:56,233 INFO L175 Difference]: Start difference. First operand has 246 places, 276 transitions, 2015 flow. Second operand 21 states and 2325 transitions. [2022-11-16 12:12:56,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 346 transitions, 3080 flow [2022-11-16 12:12:56,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 346 transitions, 2916 flow, removed 29 selfloop flow, removed 11 redundant places. [2022-11-16 12:12:56,454 INFO L231 Difference]: Finished difference. Result has 260 places, 301 transitions, 2522 flow [2022-11-16 12:12:56,455 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=1886, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2522, PETRI_PLACES=260, PETRI_TRANSITIONS=301} [2022-11-16 12:12:56,459 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 116 predicate places. [2022-11-16 12:12:56,459 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 301 transitions, 2522 flow [2022-11-16 12:12:56,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:56,472 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:12:56,472 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:12:56,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:12:56,473 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:12:56,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:56,473 INFO L85 PathProgramCache]: Analyzing trace with hash 751850441, now seen corresponding path program 3 times [2022-11-16 12:12:56,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:56,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239431616] [2022-11-16 12:12:56,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:56,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:58,568 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 12:12:58,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:58,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239431616] [2022-11-16 12:12:58,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239431616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:58,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:58,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-16 12:12:58,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946710680] [2022-11-16 12:12:58,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:58,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-16 12:12:58,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:58,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-16 12:12:58,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-11-16 12:12:58,573 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-16 12:12:58,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 301 transitions, 2522 flow. Second operand has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:58,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:12:58,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-16 12:12:58,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:13:04,736 INFO L130 PetriNetUnfolder]: 5292/18874 cut-off events. [2022-11-16 12:13:04,736 INFO L131 PetriNetUnfolder]: For 45535/47279 co-relation queries the response was YES. [2022-11-16 12:13:04,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47792 conditions, 18874 events. 5292/18874 cut-off events. For 45535/47279 co-relation queries the response was YES. Maximal size of possible extension queue 564. Compared 223117 event pairs, 2883 based on Foata normal form. 130/17617 useless extension candidates. Maximal degree in co-relation 44662. Up to 5947 conditions per place. [2022-11-16 12:13:05,053 INFO L137 encePairwiseOnDemand]: 152/173 looper letters, 158 selfloop transitions, 104 changer transitions 5/358 dead transitions. [2022-11-16 12:13:05,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 358 transitions, 3508 flow [2022-11-16 12:13:05,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:13:05,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:13:05,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2216 transitions. [2022-11-16 12:13:05,061 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6404624277456648 [2022-11-16 12:13:05,061 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2216 transitions. [2022-11-16 12:13:05,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2216 transitions. [2022-11-16 12:13:05,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:13:05,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2216 transitions. [2022-11-16 12:13:05,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 110.8) internal successors, (2216), 20 states have internal predecessors, (2216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:05,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 173.0) internal successors, (3633), 21 states have internal predecessors, (3633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:05,080 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 173.0) internal successors, (3633), 21 states have internal predecessors, (3633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:05,080 INFO L175 Difference]: Start difference. First operand has 260 places, 301 transitions, 2522 flow. Second operand 20 states and 2216 transitions. [2022-11-16 12:13:05,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 358 transitions, 3508 flow [2022-11-16 12:13:05,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 358 transitions, 3406 flow, removed 26 selfloop flow, removed 13 redundant places. [2022-11-16 12:13:05,353 INFO L231 Difference]: Finished difference. Result has 270 places, 314 transitions, 2920 flow [2022-11-16 12:13:05,354 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=2430, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2920, PETRI_PLACES=270, PETRI_TRANSITIONS=314} [2022-11-16 12:13:05,355 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 126 predicate places. [2022-11-16 12:13:05,355 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 314 transitions, 2920 flow [2022-11-16 12:13:05,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:05,357 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:13:05,357 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 12:13:05,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:13:05,358 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:13:05,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:13:05,359 INFO L85 PathProgramCache]: Analyzing trace with hash 168091100, now seen corresponding path program 1 times [2022-11-16 12:13:05,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:13:05,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706259279] [2022-11-16 12:13:05,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:05,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:13:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:06,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:13:06,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:13:06,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706259279] [2022-11-16 12:13:06,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706259279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:13:06,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:13:06,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:13:06,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608345992] [2022-11-16 12:13:06,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:13:06,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:13:06,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:13:06,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:13:06,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:13:06,259 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 173 [2022-11-16 12:13:06,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 314 transitions, 2920 flow. Second operand has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:06,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:13:06,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 173 [2022-11-16 12:13:06,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:13:12,125 INFO L130 PetriNetUnfolder]: 5188/23093 cut-off events. [2022-11-16 12:13:12,125 INFO L131 PetriNetUnfolder]: For 63458/65816 co-relation queries the response was YES. [2022-11-16 12:13:12,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55859 conditions, 23093 events. 5188/23093 cut-off events. For 63458/65816 co-relation queries the response was YES. Maximal size of possible extension queue 851. Compared 306832 event pairs, 1629 based on Foata normal form. 185/21651 useless extension candidates. Maximal degree in co-relation 53496. Up to 4820 conditions per place. [2022-11-16 12:13:12,464 INFO L137 encePairwiseOnDemand]: 157/173 looper letters, 326 selfloop transitions, 48 changer transitions 2/485 dead transitions. [2022-11-16 12:13:12,464 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 485 transitions, 5253 flow [2022-11-16 12:13:12,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:13:12,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:13:12,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1460 transitions. [2022-11-16 12:13:12,482 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.767209668943773 [2022-11-16 12:13:12,483 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1460 transitions. [2022-11-16 12:13:12,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1460 transitions. [2022-11-16 12:13:12,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:13:12,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1460 transitions. [2022-11-16 12:13:12,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 132.72727272727272) internal successors, (1460), 11 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:12,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 173.0) internal successors, (2076), 12 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:12,501 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 173.0) internal successors, (2076), 12 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:12,501 INFO L175 Difference]: Start difference. First operand has 270 places, 314 transitions, 2920 flow. Second operand 11 states and 1460 transitions. [2022-11-16 12:13:12,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 485 transitions, 5253 flow [2022-11-16 12:13:12,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 485 transitions, 4955 flow, removed 118 selfloop flow, removed 13 redundant places. [2022-11-16 12:13:13,017 INFO L231 Difference]: Finished difference. Result has 271 places, 334 transitions, 3147 flow [2022-11-16 12:13:13,017 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=2802, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3147, PETRI_PLACES=271, PETRI_TRANSITIONS=334} [2022-11-16 12:13:13,021 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 127 predicate places. [2022-11-16 12:13:13,021 INFO L495 AbstractCegarLoop]: Abstraction has has 271 places, 334 transitions, 3147 flow [2022-11-16 12:13:13,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:13,022 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:13:13,023 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 12:13:13,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:13:13,024 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 12:13:13,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:13:13,025 INFO L85 PathProgramCache]: Analyzing trace with hash 575052408, now seen corresponding path program 2 times [2022-11-16 12:13:13,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:13:13,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392611970] [2022-11-16 12:13:13,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:13,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:13:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:14,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:13:14,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:13:14,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392611970] [2022-11-16 12:13:14,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392611970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:13:14,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:13:14,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:13:14,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841878643] [2022-11-16 12:13:14,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:13:14,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:13:14,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:13:14,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:13:14,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:13:14,012 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 173 [2022-11-16 12:13:14,014 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 334 transitions, 3147 flow. Second operand has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:14,014 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:13:14,014 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 173 [2022-11-16 12:13:14,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:13:22,648 INFO L130 PetriNetUnfolder]: 6894/30740 cut-off events. [2022-11-16 12:13:22,648 INFO L131 PetriNetUnfolder]: For 87350/93515 co-relation queries the response was YES. [2022-11-16 12:13:23,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79892 conditions, 30740 events. 6894/30740 cut-off events. For 87350/93515 co-relation queries the response was YES. Maximal size of possible extension queue 1256. Compared 430901 event pairs, 1992 based on Foata normal form. 528/29097 useless extension candidates. Maximal degree in co-relation 77329. Up to 6671 conditions per place. [2022-11-16 12:13:23,107 INFO L137 encePairwiseOnDemand]: 156/173 looper letters, 313 selfloop transitions, 99 changer transitions 4/525 dead transitions. [2022-11-16 12:13:23,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 525 transitions, 5708 flow [2022-11-16 12:13:23,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:13:23,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 12:13:23,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1841 transitions. [2022-11-16 12:13:23,112 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7601156069364162 [2022-11-16 12:13:23,112 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1841 transitions. [2022-11-16 12:13:23,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1841 transitions. [2022-11-16 12:13:23,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:13:23,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1841 transitions. [2022-11-16 12:13:23,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 131.5) internal successors, (1841), 14 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:23,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 173.0) internal successors, (2595), 15 states have internal predecessors, (2595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:23,135 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 173.0) internal successors, (2595), 15 states have internal predecessors, (2595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:23,136 INFO L175 Difference]: Start difference. First operand has 271 places, 334 transitions, 3147 flow. Second operand 14 states and 1841 transitions. [2022-11-16 12:13:23,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 525 transitions, 5708 flow [2022-11-16 12:13:23,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 525 transitions, 5515 flow, removed 80 selfloop flow, removed 6 redundant places. [2022-11-16 12:13:23,627 INFO L231 Difference]: Finished difference. Result has 286 places, 389 transitions, 4004 flow [2022-11-16 12:13:23,627 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=3081, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4004, PETRI_PLACES=286, PETRI_TRANSITIONS=389} [2022-11-16 12:13:23,628 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 142 predicate places. [2022-11-16 12:13:23,628 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 389 transitions, 4004 flow [2022-11-16 12:13:23,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:23,629 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:13:23,629 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 12:13:23,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:13:23,629 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:13:23,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:13:23,630 INFO L85 PathProgramCache]: Analyzing trace with hash -228828489, now seen corresponding path program 1 times [2022-11-16 12:13:23,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:13:23,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569665809] [2022-11-16 12:13:23,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:23,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:13:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:24,396 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 12:13:24,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:13:24,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569665809] [2022-11-16 12:13:24,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569665809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:13:24,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:13:24,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:13:24,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299399065] [2022-11-16 12:13:24,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:13:24,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:13:24,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:13:24,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:13:24,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:13:24,400 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 173 [2022-11-16 12:13:24,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 389 transitions, 4004 flow. Second operand has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:24,402 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:13:24,402 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 173 [2022-11-16 12:13:24,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:13:35,261 INFO L130 PetriNetUnfolder]: 9126/40867 cut-off events. [2022-11-16 12:13:35,261 INFO L131 PetriNetUnfolder]: For 189960/211579 co-relation queries the response was YES. [2022-11-16 12:13:35,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119285 conditions, 40867 events. 9126/40867 cut-off events. For 189960/211579 co-relation queries the response was YES. Maximal size of possible extension queue 1735. Compared 603488 event pairs, 2664 based on Foata normal form. 1507/39421 useless extension candidates. Maximal degree in co-relation 116505. Up to 9822 conditions per place. [2022-11-16 12:13:36,245 INFO L137 encePairwiseOnDemand]: 156/173 looper letters, 304 selfloop transitions, 157 changer transitions 4/574 dead transitions. [2022-11-16 12:13:36,245 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 574 transitions, 6860 flow [2022-11-16 12:13:36,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:13:36,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 12:13:36,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1962 transitions. [2022-11-16 12:13:36,249 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7560693641618497 [2022-11-16 12:13:36,250 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1962 transitions. [2022-11-16 12:13:36,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1962 transitions. [2022-11-16 12:13:36,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:13:36,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1962 transitions. [2022-11-16 12:13:36,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 130.8) internal successors, (1962), 15 states have internal predecessors, (1962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:36,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 173.0) internal successors, (2768), 16 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:36,259 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 173.0) internal successors, (2768), 16 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:36,259 INFO L175 Difference]: Start difference. First operand has 286 places, 389 transitions, 4004 flow. Second operand 15 states and 1962 transitions. [2022-11-16 12:13:36,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 574 transitions, 6860 flow [2022-11-16 12:13:37,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 574 transitions, 6711 flow, removed 62 selfloop flow, removed 5 redundant places. [2022-11-16 12:13:37,385 INFO L231 Difference]: Finished difference. Result has 305 places, 469 transitions, 5637 flow [2022-11-16 12:13:37,386 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=3908, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=5637, PETRI_PLACES=305, PETRI_TRANSITIONS=469} [2022-11-16 12:13:37,387 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 161 predicate places. [2022-11-16 12:13:37,387 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 469 transitions, 5637 flow [2022-11-16 12:13:37,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:37,387 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:13:37,388 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 12:13:37,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:13:37,388 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:13:37,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:13:37,389 INFO L85 PathProgramCache]: Analyzing trace with hash 313380281, now seen corresponding path program 2 times [2022-11-16 12:13:37,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:13:37,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446356728] [2022-11-16 12:13:37,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:37,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:13:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:38,028 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 12:13:38,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:13:38,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446356728] [2022-11-16 12:13:38,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446356728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:13:38,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:13:38,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:13:38,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997159286] [2022-11-16 12:13:38,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:13:38,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:13:38,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:13:38,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:13:38,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:13:38,031 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 173 [2022-11-16 12:13:38,032 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 469 transitions, 5637 flow. Second operand has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:38,032 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:13:38,032 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 173 [2022-11-16 12:13:38,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand