./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_4abeafd5-6493-4126-b24f-d728e4972aa1/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abeafd5-6493-4126-b24f-d728e4972aa1/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abeafd5-6493-4126-b24f-d728e4972aa1/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abeafd5-6493-4126-b24f-d728e4972aa1/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abeafd5-6493-4126-b24f-d728e4972aa1/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abeafd5-6493-4126-b24f-d728e4972aa1/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:56:33,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:56:33,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:56:33,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:56:33,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:56:33,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:56:33,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:56:33,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:56:33,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:56:33,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:56:33,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:56:33,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:56:33,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:56:33,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:56:33,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:56:33,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:56:33,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:56:33,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:56:33,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:56:33,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:56:33,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:56:33,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:56:33,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:56:33,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:56:33,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:56:33,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:56:33,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:56:33,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:56:33,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:56:33,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:56:33,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:56:33,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:56:33,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:56:33,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:56:33,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:56:33,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:56:33,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:56:33,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:56:33,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:56:33,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:56:33,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:56:33,845 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abeafd5-6493-4126-b24f-d728e4972aa1/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 10:56:33,869 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:56:33,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:56:33,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:56:33,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:56:33,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:56:33,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:56:33,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:56:33,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:56:33,873 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:56:33,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:56:33,873 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:56:33,874 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:56:33,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:56:33,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:56:33,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:56:33,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:56:33,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:56:33,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:56:33,876 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 10:56:33,876 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:56:33,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:56:33,876 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:56:33,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:56:33,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:56:33,877 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:56:33,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:56:33,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:56:33,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:56:33,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:56:33,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:56:33,879 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:56:33,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:56:33,880 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:56:33,880 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:56:33,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:56:33,881 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_4abeafd5-6493-4126-b24f-d728e4972aa1/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abeafd5-6493-4126-b24f-d728e4972aa1/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2022-11-20 10:56:34,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:56:34,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:56:34,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:56:34,259 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:56:34,259 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:56:34,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abeafd5-6493-4126-b24f-d728e4972aa1/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-20 10:56:37,328 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:56:37,796 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:56:37,797 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abeafd5-6493-4126-b24f-d728e4972aa1/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-20 10:56:37,832 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abeafd5-6493-4126-b24f-d728e4972aa1/bin/uautomizer-ug76WZFUDN/data/546121f92/ea33be28bc604f4db0d5107e1b332347/FLAG3c15efa23 [2022-11-20 10:56:37,848 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abeafd5-6493-4126-b24f-d728e4972aa1/bin/uautomizer-ug76WZFUDN/data/546121f92/ea33be28bc604f4db0d5107e1b332347 [2022-11-20 10:56:37,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:56:37,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:56:37,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:56:37,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:56:37,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:56:37,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:56:37" (1/1) ... [2022-11-20 10:56:37,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc58183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:37, skipping insertion in model container [2022-11-20 10:56:37,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:56:37" (1/1) ... [2022-11-20 10:56:37,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:56:37,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:56:38,093 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 10:56:38,755 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abeafd5-6493-4126-b24f-d728e4972aa1/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-20 10:56:38,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:56:38,851 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:56:38,865 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 10:56:38,937 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abeafd5-6493-4126-b24f-d728e4972aa1/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-20 10:56:38,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:56:39,081 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:56:39,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:39 WrapperNode [2022-11-20 10:56:39,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:56:39,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:56:39,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:56:39,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:56:39,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:39" (1/1) ... [2022-11-20 10:56:39,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:39" (1/1) ... [2022-11-20 10:56:39,161 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-11-20 10:56:39,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:56:39,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:56:39,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:56:39,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:56:39,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:39" (1/1) ... [2022-11-20 10:56:39,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:39" (1/1) ... [2022-11-20 10:56:39,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:39" (1/1) ... [2022-11-20 10:56:39,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:39" (1/1) ... [2022-11-20 10:56:39,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:39" (1/1) ... [2022-11-20 10:56:39,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:39" (1/1) ... [2022-11-20 10:56:39,218 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:39" (1/1) ... [2022-11-20 10:56:39,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:39" (1/1) ... [2022-11-20 10:56:39,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:56:39,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:56:39,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:56:39,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:56:39,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:39" (1/1) ... [2022-11-20 10:56:39,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:56:39,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abeafd5-6493-4126-b24f-d728e4972aa1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:39,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abeafd5-6493-4126-b24f-d728e4972aa1/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:56:39,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4abeafd5-6493-4126-b24f-d728e4972aa1/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:56:39,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 10:56:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:56:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 10:56:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:56:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 10:56:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:56:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:56:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:56:39,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:56:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-20 10:56:39,304 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-20 10:56:39,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:56:39,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:56:39,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:56:39,307 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:56:39,681 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:56:39,684 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:56:40,062 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:56:40,150 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:56:40,157 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:56:40,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:56:40 BoogieIcfgContainer [2022-11-20 10:56:40,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:56:40,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:56:40,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:56:40,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:56:40,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:56:37" (1/3) ... [2022-11-20 10:56:40,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af75a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:56:40, skipping insertion in model container [2022-11-20 10:56:40,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:39" (2/3) ... [2022-11-20 10:56:40,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af75a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:56:40, skipping insertion in model container [2022-11-20 10:56:40,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:56:40" (3/3) ... [2022-11-20 10:56:40,169 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2022-11-20 10:56:40,179 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:56:40,191 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:56:40,191 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 10:56:40,191 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:56:40,308 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 10:56:40,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 173 transitions, 362 flow [2022-11-20 10:56:40,444 INFO L130 PetriNetUnfolder]: 8/216 cut-off events. [2022-11-20 10:56:40,444 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 10:56:40,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 216 events. 8/216 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 366 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2022-11-20 10:56:40,451 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 173 transitions, 362 flow [2022-11-20 10:56:40,456 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 139 transitions, 287 flow [2022-11-20 10:56:40,466 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:56:40,474 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;@2c11dd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:56:40,474 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-20 10:56:40,492 INFO L130 PetriNetUnfolder]: 0/69 cut-off events. [2022-11-20 10:56:40,493 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:56:40,493 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:56:40,494 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] [2022-11-20 10:56:40,494 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 10:56:40,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:40,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1154381407, now seen corresponding path program 1 times [2022-11-20 10:56:40,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:40,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307071037] [2022-11-20 10:56:40,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:40,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:43,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:56:43,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:43,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307071037] [2022-11-20 10:56:43,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307071037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:43,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:43,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-20 10:56:43,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601260896] [2022-11-20 10:56:43,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:43,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 10:56:43,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:43,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 10:56:43,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:56:43,277 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 173 [2022-11-20 10:56:43,286 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) [2022-11-20 10:56:43,287 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:56:43,287 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 173 [2022-11-20 10:56:43,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:56:45,741 INFO L130 PetriNetUnfolder]: 1073/4073 cut-off events. [2022-11-20 10:56:45,741 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-11-20 10:56:45,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5946 conditions, 4073 events. 1073/4073 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 38427 event pairs, 686 based on Foata normal form. 160/3752 useless extension candidates. Maximal degree in co-relation 5593. Up to 1273 conditions per place. [2022-11-20 10:56:45,779 INFO L137 encePairwiseOnDemand]: 153/173 looper letters, 82 selfloop transitions, 23 changer transitions 2/194 dead transitions. [2022-11-20 10:56:45,779 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 194 transitions, 617 flow [2022-11-20 10:56:45,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 10:56:45,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 10:56:45,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2151 transitions. [2022-11-20 10:56:45,807 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6907514450867052 [2022-11-20 10:56:45,808 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2151 transitions. [2022-11-20 10:56:45,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2151 transitions. [2022-11-20 10:56:45,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:56:45,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2151 transitions. [2022-11-20 10:56:45,829 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) [2022-11-20 10:56:45,844 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) [2022-11-20 10:56:45,847 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) [2022-11-20 10:56:45,849 INFO L175 Difference]: Start difference. First operand has 144 places, 139 transitions, 287 flow. Second operand 18 states and 2151 transitions. [2022-11-20 10:56:45,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 194 transitions, 617 flow [2022-11-20 10:56:45,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 194 transitions, 609 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 10:56:45,864 INFO L231 Difference]: Finished difference. Result has 165 places, 150 transitions, 403 flow [2022-11-20 10:56:45,867 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} [2022-11-20 10:56:45,871 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 21 predicate places. [2022-11-20 10:56:45,872 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 150 transitions, 403 flow [2022-11-20 10:56:45,873 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) [2022-11-20 10:56:45,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:56:45,874 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] [2022-11-20 10:56:45,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:56:45,875 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 10:56:45,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:45,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1816973476, now seen corresponding path program 1 times [2022-11-20 10:56:45,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:45,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940341009] [2022-11-20 10:56:45,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:45,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:47,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:56:47,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:47,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940341009] [2022-11-20 10:56:47,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940341009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:47,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:47,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-20 10:56:47,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997023629] [2022-11-20 10:56:47,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:47,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 10:56:47,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:47,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 10:56:47,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:56:47,231 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-20 10:56:47,234 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) [2022-11-20 10:56:47,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:56:47,235 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-20 10:56:47,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:56:49,954 INFO L130 PetriNetUnfolder]: 1529/4713 cut-off events. [2022-11-20 10:56:49,954 INFO L131 PetriNetUnfolder]: For 927/946 co-relation queries the response was YES. [2022-11-20 10:56:49,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8238 conditions, 4713 events. 1529/4713 cut-off events. For 927/946 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 42637 event pairs, 786 based on Foata normal form. 63/4244 useless extension candidates. Maximal degree in co-relation 7670. Up to 1468 conditions per place. [2022-11-20 10:56:49,991 INFO L137 encePairwiseOnDemand]: 151/173 looper letters, 123 selfloop transitions, 41 changer transitions 2/245 dead transitions. [2022-11-20 10:56:49,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 245 transitions, 986 flow [2022-11-20 10:56:49,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 10:56:49,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 10:56:49,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2348 transitions. [2022-11-20 10:56:49,999 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.646297825488577 [2022-11-20 10:56:49,999 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2348 transitions. [2022-11-20 10:56:49,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2348 transitions. [2022-11-20 10:56:50,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:56:50,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2348 transitions. [2022-11-20 10:56:50,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 111.80952380952381) internal successors, (2348), 21 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:50,017 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) [2022-11-20 10:56:50,018 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) [2022-11-20 10:56:50,019 INFO L175 Difference]: Start difference. First operand has 165 places, 150 transitions, 403 flow. Second operand 21 states and 2348 transitions. [2022-11-20 10:56:50,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 245 transitions, 986 flow [2022-11-20 10:56:50,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 245 transitions, 975 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 10:56:50,041 INFO L231 Difference]: Finished difference. Result has 188 places, 176 transitions, 629 flow [2022-11-20 10:56:50,041 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=629, PETRI_PLACES=188, PETRI_TRANSITIONS=176} [2022-11-20 10:56:50,042 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 44 predicate places. [2022-11-20 10:56:50,043 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 176 transitions, 629 flow [2022-11-20 10:56:50,044 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) [2022-11-20 10:56:50,044 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:56:50,045 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] [2022-11-20 10:56:50,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:56:50,045 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 10:56:50,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:50,047 INFO L85 PathProgramCache]: Analyzing trace with hash -393296468, now seen corresponding path program 1 times [2022-11-20 10:56:50,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:50,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049037197] [2022-11-20 10:56:50,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:50,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:51,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:56:51,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:51,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049037197] [2022-11-20 10:56:51,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049037197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:51,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:51,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-20 10:56:51,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404500065] [2022-11-20 10:56:51,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:51,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 10:56:51,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:51,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 10:56:51,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:56:51,392 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-20 10:56:51,394 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 176 transitions, 629 flow. Second operand has 19 states, 19 states have (on average 105.73684210526316) internal successors, (2009), 19 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:51,394 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:56:51,395 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-20 10:56:51,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:56:54,555 INFO L130 PetriNetUnfolder]: 2463/7820 cut-off events. [2022-11-20 10:56:54,555 INFO L131 PetriNetUnfolder]: For 6315/7383 co-relation queries the response was YES. [2022-11-20 10:56:54,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16006 conditions, 7820 events. 2463/7820 cut-off events. For 6315/7383 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 79776 event pairs, 984 based on Foata normal form. 87/7138 useless extension candidates. Maximal degree in co-relation 15010. Up to 3199 conditions per place. [2022-11-20 10:56:54,750 INFO L137 encePairwiseOnDemand]: 151/173 looper letters, 121 selfloop transitions, 61 changer transitions 9/278 dead transitions. [2022-11-20 10:56:54,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 278 transitions, 1398 flow [2022-11-20 10:56:54,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 10:56:54,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 10:56:54,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2337 transitions. [2022-11-20 10:56:54,758 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.643270024772915 [2022-11-20 10:56:54,758 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2337 transitions. [2022-11-20 10:56:54,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2337 transitions. [2022-11-20 10:56:54,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:56:54,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2337 transitions. [2022-11-20 10:56:54,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 111.28571428571429) internal successors, (2337), 21 states have internal predecessors, (2337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:54,774 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) [2022-11-20 10:56:54,777 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) [2022-11-20 10:56:54,777 INFO L175 Difference]: Start difference. First operand has 188 places, 176 transitions, 629 flow. Second operand 21 states and 2337 transitions. [2022-11-20 10:56:54,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 278 transitions, 1398 flow [2022-11-20 10:56:54,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 278 transitions, 1324 flow, removed 28 selfloop flow, removed 10 redundant places. [2022-11-20 10:56:54,893 INFO L231 Difference]: Finished difference. Result has 207 places, 213 transitions, 976 flow [2022-11-20 10:56:54,894 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=976, PETRI_PLACES=207, PETRI_TRANSITIONS=213} [2022-11-20 10:56:54,894 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 63 predicate places. [2022-11-20 10:56:54,894 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 213 transitions, 976 flow [2022-11-20 10:56:54,895 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) [2022-11-20 10:56:54,896 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:56:54,896 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:54,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:56:54,896 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 10:56:54,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:54,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1153865424, now seen corresponding path program 1 times [2022-11-20 10:56:54,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:54,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152854553] [2022-11-20 10:56:54,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:54,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:56,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:56:56,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:56,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152854553] [2022-11-20 10:56:56,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152854553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:56,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:56,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-20 10:56:56,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235232379] [2022-11-20 10:56:56,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:56,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:56:56,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:56,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:56:56,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:56:56,109 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-20 10:56:56,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 213 transitions, 976 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:56:56,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:56:56,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-20 10:56:56,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:57:03,677 INFO L130 PetriNetUnfolder]: 4352/16316 cut-off events. [2022-11-20 10:57:03,677 INFO L131 PetriNetUnfolder]: For 12697/19178 co-relation queries the response was YES. [2022-11-20 10:57:03,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31922 conditions, 16316 events. 4352/16316 cut-off events. For 12697/19178 co-relation queries the response was YES. Maximal size of possible extension queue 631. Compared 202781 event pairs, 1288 based on Foata normal form. 202/15457 useless extension candidates. Maximal degree in co-relation 30682. Up to 2179 conditions per place. [2022-11-20 10:57:03,828 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 432 selfloop transitions, 74 changer transitions 4/610 dead transitions. [2022-11-20 10:57:03,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 610 transitions, 3955 flow [2022-11-20 10:57:03,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 10:57:03,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 10:57:03,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3700 transitions. [2022-11-20 10:57:03,836 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.763831544178365 [2022-11-20 10:57:03,837 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3700 transitions. [2022-11-20 10:57:03,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3700 transitions. [2022-11-20 10:57:03,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:57:03,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3700 transitions. [2022-11-20 10:57:03,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 132.14285714285714) internal successors, (3700), 28 states have internal predecessors, (3700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:03,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:03,859 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:03,859 INFO L175 Difference]: Start difference. First operand has 207 places, 213 transitions, 976 flow. Second operand 28 states and 3700 transitions. [2022-11-20 10:57:03,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 610 transitions, 3955 flow [2022-11-20 10:57:03,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 610 transitions, 3886 flow, removed 27 selfloop flow, removed 8 redundant places. [2022-11-20 10:57:03,948 INFO L231 Difference]: Finished difference. Result has 239 places, 265 transitions, 1581 flow [2022-11-20 10:57:03,949 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=943, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1581, PETRI_PLACES=239, PETRI_TRANSITIONS=265} [2022-11-20 10:57:03,950 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 95 predicate places. [2022-11-20 10:57:03,951 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 265 transitions, 1581 flow [2022-11-20 10:57:03,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:03,952 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:57:03,952 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:57:03,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:57:03,954 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 10:57:03,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:03,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1387257904, now seen corresponding path program 2 times [2022-11-20 10:57:03,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:03,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971847508] [2022-11-20 10:57:03,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:03,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:05,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:57:05,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:57:05,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971847508] [2022-11-20 10:57:05,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971847508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:05,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:05,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-20 10:57:05,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644962598] [2022-11-20 10:57:05,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:05,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:57:05,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:57:05,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:57:05,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:57:05,038 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-20 10:57:05,040 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 265 transitions, 1581 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:05,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:57:05,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-20 10:57:05,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:57:12,707 INFO L130 PetriNetUnfolder]: 6090/22209 cut-off events. [2022-11-20 10:57:12,707 INFO L131 PetriNetUnfolder]: For 34935/46306 co-relation queries the response was YES. [2022-11-20 10:57:12,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51904 conditions, 22209 events. 6090/22209 cut-off events. For 34935/46306 co-relation queries the response was YES. Maximal size of possible extension queue 890. Compared 290485 event pairs, 1666 based on Foata normal form. 369/21145 useless extension candidates. Maximal degree in co-relation 50844. Up to 2401 conditions per place. [2022-11-20 10:57:12,988 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 449 selfloop transitions, 119 changer transitions 4/672 dead transitions. [2022-11-20 10:57:12,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 672 transitions, 5315 flow [2022-11-20 10:57:12,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 10:57:12,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 10:57:12,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3699 transitions. [2022-11-20 10:57:12,999 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7636251032204789 [2022-11-20 10:57:12,999 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3699 transitions. [2022-11-20 10:57:13,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3699 transitions. [2022-11-20 10:57:13,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:57:13,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3699 transitions. [2022-11-20 10:57:13,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 132.10714285714286) internal successors, (3699), 28 states have internal predecessors, (3699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:13,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:13,035 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:13,043 INFO L175 Difference]: Start difference. First operand has 239 places, 265 transitions, 1581 flow. Second operand 28 states and 3699 transitions. [2022-11-20 10:57:13,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 672 transitions, 5315 flow [2022-11-20 10:57:13,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 672 transitions, 5239 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-11-20 10:57:13,301 INFO L231 Difference]: Finished difference. Result has 273 places, 318 transitions, 2529 flow [2022-11-20 10:57:13,302 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=1535, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=2529, PETRI_PLACES=273, PETRI_TRANSITIONS=318} [2022-11-20 10:57:13,305 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 129 predicate places. [2022-11-20 10:57:13,306 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 318 transitions, 2529 flow [2022-11-20 10:57:13,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:13,307 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:57:13,308 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:57:13,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:57:13,308 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 10:57:13,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:13,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1346274258, now seen corresponding path program 1 times [2022-11-20 10:57:13,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:13,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731661599] [2022-11-20 10:57:13,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:13,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:14,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:57:14,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:57:14,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731661599] [2022-11-20 10:57:14,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731661599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:14,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:14,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-20 10:57:14,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940547960] [2022-11-20 10:57:14,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:14,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:57:14,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:57:14,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:57:14,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:57:14,632 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-20 10:57:14,635 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 318 transitions, 2529 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:14,635 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:57:14,636 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-20 10:57:14,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:57:22,381 INFO L130 PetriNetUnfolder]: 6379/22401 cut-off events. [2022-11-20 10:57:22,382 INFO L131 PetriNetUnfolder]: For 67210/80793 co-relation queries the response was YES. [2022-11-20 10:57:22,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61482 conditions, 22401 events. 6379/22401 cut-off events. For 67210/80793 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 288318 event pairs, 1452 based on Foata normal form. 187/21028 useless extension candidates. Maximal degree in co-relation 60085. Up to 3942 conditions per place. [2022-11-20 10:57:22,875 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 472 selfloop transitions, 169 changer transitions 4/745 dead transitions. [2022-11-20 10:57:22,875 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 745 transitions, 7629 flow [2022-11-20 10:57:22,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 10:57:22,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 10:57:22,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3671 transitions. [2022-11-20 10:57:22,883 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7578447563996696 [2022-11-20 10:57:22,884 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3671 transitions. [2022-11-20 10:57:22,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3671 transitions. [2022-11-20 10:57:22,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:57:22,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3671 transitions. [2022-11-20 10:57:22,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 131.10714285714286) internal successors, (3671), 28 states have internal predecessors, (3671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:22,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:22,908 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:22,908 INFO L175 Difference]: Start difference. First operand has 273 places, 318 transitions, 2529 flow. Second operand 28 states and 3671 transitions. [2022-11-20 10:57:22,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 745 transitions, 7629 flow [2022-11-20 10:57:23,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 745 transitions, 7505 flow, removed 41 selfloop flow, removed 11 redundant places. [2022-11-20 10:57:23,369 INFO L231 Difference]: Finished difference. Result has 301 places, 395 transitions, 4111 flow [2022-11-20 10:57:23,370 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=2453, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=4111, PETRI_PLACES=301, PETRI_TRANSITIONS=395} [2022-11-20 10:57:23,372 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 157 predicate places. [2022-11-20 10:57:23,373 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 395 transitions, 4111 flow [2022-11-20 10:57:23,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:23,374 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:57:23,374 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:57:23,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:57:23,375 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 10:57:23,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:23,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1867025932, now seen corresponding path program 3 times [2022-11-20 10:57:23,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:23,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656942073] [2022-11-20 10:57:23,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:23,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:24,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:57:24,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:57:24,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656942073] [2022-11-20 10:57:24,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656942073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:24,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:24,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-20 10:57:24,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189923128] [2022-11-20 10:57:24,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:24,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:57:24,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:57:24,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:57:24,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:57:24,671 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-20 10:57:24,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 395 transitions, 4111 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:24,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:57:24,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-20 10:57:24,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:57:33,146 INFO L130 PetriNetUnfolder]: 6476/24360 cut-off events. [2022-11-20 10:57:33,147 INFO L131 PetriNetUnfolder]: For 90094/104914 co-relation queries the response was YES. [2022-11-20 10:57:33,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68409 conditions, 24360 events. 6476/24360 cut-off events. For 90094/104914 co-relation queries the response was YES. Maximal size of possible extension queue 917. Compared 325419 event pairs, 2398 based on Foata normal form. 236/22924 useless extension candidates. Maximal degree in co-relation 68003. Up to 4673 conditions per place. [2022-11-20 10:57:33,527 INFO L137 encePairwiseOnDemand]: 155/173 looper letters, 482 selfloop transitions, 166 changer transitions 2/750 dead transitions. [2022-11-20 10:57:33,527 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 750 transitions, 8138 flow [2022-11-20 10:57:33,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 10:57:33,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 10:57:33,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3682 transitions. [2022-11-20 10:57:33,542 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7601156069364162 [2022-11-20 10:57:33,543 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3682 transitions. [2022-11-20 10:57:33,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3682 transitions. [2022-11-20 10:57:33,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:57:33,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3682 transitions. [2022-11-20 10:57:33,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 131.5) internal successors, (3682), 28 states have internal predecessors, (3682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:33,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:33,564 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:33,564 INFO L175 Difference]: Start difference. First operand has 301 places, 395 transitions, 4111 flow. Second operand 28 states and 3682 transitions. [2022-11-20 10:57:33,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 750 transitions, 8138 flow [2022-11-20 10:57:34,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 750 transitions, 7745 flow, removed 160 selfloop flow, removed 13 redundant places. [2022-11-20 10:57:34,324 INFO L231 Difference]: Finished difference. Result has 321 places, 408 transitions, 4569 flow [2022-11-20 10:57:34,325 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=3918, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=4569, PETRI_PLACES=321, PETRI_TRANSITIONS=408} [2022-11-20 10:57:34,326 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 177 predicate places. [2022-11-20 10:57:34,326 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 408 transitions, 4569 flow [2022-11-20 10:57:34,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:34,327 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:57:34,327 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:57:34,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:57:34,327 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 10:57:34,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:34,328 INFO L85 PathProgramCache]: Analyzing trace with hash -829470714, now seen corresponding path program 4 times [2022-11-20 10:57:34,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:34,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831178109] [2022-11-20 10:57:34,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:34,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:35,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:57:35,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:57:35,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831178109] [2022-11-20 10:57:35,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831178109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:35,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:35,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 10:57:35,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174975047] [2022-11-20 10:57:35,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:35,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 10:57:35,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:57:35,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 10:57:35,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:57:35,324 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-20 10:57:35,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 408 transitions, 4569 flow. Second operand has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:35,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:57:35,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-20 10:57:35,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:57:44,109 INFO L130 PetriNetUnfolder]: 6826/26164 cut-off events. [2022-11-20 10:57:44,109 INFO L131 PetriNetUnfolder]: For 106615/121550 co-relation queries the response was YES. [2022-11-20 10:57:44,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73596 conditions, 26164 events. 6826/26164 cut-off events. For 106615/121550 co-relation queries the response was YES. Maximal size of possible extension queue 954. Compared 354727 event pairs, 2558 based on Foata normal form. 190/24517 useless extension candidates. Maximal degree in co-relation 73167. Up to 4673 conditions per place. [2022-11-20 10:57:44,791 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 518 selfloop transitions, 181 changer transitions 2/801 dead transitions. [2022-11-20 10:57:44,791 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 801 transitions, 9021 flow [2022-11-20 10:57:44,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 10:57:44,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 10:57:44,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3695 transitions. [2022-11-20 10:57:44,798 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7627993393889347 [2022-11-20 10:57:44,798 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3695 transitions. [2022-11-20 10:57:44,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3695 transitions. [2022-11-20 10:57:44,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:57:44,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3695 transitions. [2022-11-20 10:57:44,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 131.96428571428572) internal successors, (3695), 28 states have internal predecessors, (3695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:44,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:44,815 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:44,815 INFO L175 Difference]: Start difference. First operand has 321 places, 408 transitions, 4569 flow. Second operand 28 states and 3695 transitions. [2022-11-20 10:57:44,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 801 transitions, 9021 flow [2022-11-20 10:57:45,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 801 transitions, 8755 flow, removed 17 selfloop flow, removed 20 redundant places. [2022-11-20 10:57:45,510 INFO L231 Difference]: Finished difference. Result has 340 places, 440 transitions, 5490 flow [2022-11-20 10:57:45,511 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=4335, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=5490, PETRI_PLACES=340, PETRI_TRANSITIONS=440} [2022-11-20 10:57:45,511 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 196 predicate places. [2022-11-20 10:57:45,512 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 440 transitions, 5490 flow [2022-11-20 10:57:45,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:45,512 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:57:45,513 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:57:45,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:57:45,513 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 10:57:45,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:45,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1762241286, now seen corresponding path program 5 times [2022-11-20 10:57:45,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:45,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433978524] [2022-11-20 10:57:45,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:45,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:46,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:57:46,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:57:46,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433978524] [2022-11-20 10:57:46,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433978524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:46,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:46,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 10:57:46,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795594962] [2022-11-20 10:57:46,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:46,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 10:57:46,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:57:46,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 10:57:46,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:57:46,422 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-20 10:57:46,424 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 440 transitions, 5490 flow. Second operand has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:46,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:57:46,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-20 10:57:46,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:57:56,422 INFO L130 PetriNetUnfolder]: 7101/27908 cut-off events. [2022-11-20 10:57:56,422 INFO L131 PetriNetUnfolder]: For 128970/144996 co-relation queries the response was YES. [2022-11-20 10:57:56,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79897 conditions, 27908 events. 7101/27908 cut-off events. For 128970/144996 co-relation queries the response was YES. Maximal size of possible extension queue 1004. Compared 384559 event pairs, 2908 based on Foata normal form. 169/26151 useless extension candidates. Maximal degree in co-relation 79464. Up to 4673 conditions per place. [2022-11-20 10:57:56,948 INFO L137 encePairwiseOnDemand]: 155/173 looper letters, 504 selfloop transitions, 191 changer transitions 2/797 dead transitions. [2022-11-20 10:57:56,948 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 797 transitions, 9604 flow [2022-11-20 10:57:56,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 10:57:56,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 10:57:56,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3683 transitions. [2022-11-20 10:57:56,956 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7603220478943022 [2022-11-20 10:57:56,957 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3683 transitions. [2022-11-20 10:57:56,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3683 transitions. [2022-11-20 10:57:56,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:57:56,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3683 transitions. [2022-11-20 10:57:56,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 131.53571428571428) internal successors, (3683), 28 states have internal predecessors, (3683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:56,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:56,978 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:56,978 INFO L175 Difference]: Start difference. First operand has 340 places, 440 transitions, 5490 flow. Second operand 28 states and 3683 transitions. [2022-11-20 10:57:56,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 797 transitions, 9604 flow [2022-11-20 10:57:58,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 797 transitions, 9332 flow, removed 77 selfloop flow, removed 14 redundant places. [2022-11-20 10:57:58,226 INFO L231 Difference]: Finished difference. Result has 361 places, 460 transitions, 6236 flow [2022-11-20 10:57:58,227 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=5246, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=6236, PETRI_PLACES=361, PETRI_TRANSITIONS=460} [2022-11-20 10:57:58,228 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 217 predicate places. [2022-11-20 10:57:58,228 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 460 transitions, 6236 flow [2022-11-20 10:57:58,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:58,229 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:57:58,229 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:57:58,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:57:58,229 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 10:57:58,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:58,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1370506008, now seen corresponding path program 6 times [2022-11-20 10:57:58,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:58,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103551113] [2022-11-20 10:57:58,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:58,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:59,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:57:59,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:57:59,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103551113] [2022-11-20 10:57:59,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103551113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:59,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:59,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 10:57:59,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996961234] [2022-11-20 10:57:59,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:59,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 10:57:59,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:57:59,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 10:57:59,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:57:59,225 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-20 10:57:59,227 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 460 transitions, 6236 flow. Second operand has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:57:59,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:57:59,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-20 10:57:59,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:58:08,402 INFO L130 PetriNetUnfolder]: 6321/23186 cut-off events. [2022-11-20 10:58:08,402 INFO L131 PetriNetUnfolder]: For 120242/137466 co-relation queries the response was YES. [2022-11-20 10:58:08,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70451 conditions, 23186 events. 6321/23186 cut-off events. For 120242/137466 co-relation queries the response was YES. Maximal size of possible extension queue 844. Compared 304570 event pairs, 2012 based on Foata normal form. 234/21732 useless extension candidates. Maximal degree in co-relation 70079. Up to 4673 conditions per place. [2022-11-20 10:58:08,850 INFO L137 encePairwiseOnDemand]: 155/173 looper letters, 508 selfloop transitions, 192 changer transitions 0/800 dead transitions. [2022-11-20 10:58:08,850 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 800 transitions, 10012 flow [2022-11-20 10:58:08,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 10:58:08,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 10:58:08,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3684 transitions. [2022-11-20 10:58:08,856 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7605284888521883 [2022-11-20 10:58:08,856 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3684 transitions. [2022-11-20 10:58:08,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3684 transitions. [2022-11-20 10:58:08,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:58:08,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3684 transitions. [2022-11-20 10:58:08,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 131.57142857142858) internal successors, (3684), 28 states have internal predecessors, (3684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:08,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:08,871 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:08,871 INFO L175 Difference]: Start difference. First operand has 361 places, 460 transitions, 6236 flow. Second operand 28 states and 3684 transitions. [2022-11-20 10:58:08,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 800 transitions, 10012 flow [2022-11-20 10:58:09,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 800 transitions, 9690 flow, removed 67 selfloop flow, removed 18 redundant places. [2022-11-20 10:58:09,844 INFO L231 Difference]: Finished difference. Result has 380 places, 472 transitions, 6765 flow [2022-11-20 10:58:09,845 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=5777, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=175, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=6765, PETRI_PLACES=380, PETRI_TRANSITIONS=472} [2022-11-20 10:58:09,846 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 236 predicate places. [2022-11-20 10:58:09,846 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 472 transitions, 6765 flow [2022-11-20 10:58:09,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:09,847 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:58:09,847 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:09,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 10:58:09,847 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 10:58:09,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:09,848 INFO L85 PathProgramCache]: Analyzing trace with hash 238717968, now seen corresponding path program 7 times [2022-11-20 10:58:09,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:09,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61804657] [2022-11-20 10:58:09,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:09,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:10,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:10,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:10,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61804657] [2022-11-20 10:58:10,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61804657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:10,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:10,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-20 10:58:10,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875683023] [2022-11-20 10:58:10,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:10,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:58:10,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:10,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:58:10,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:58:10,980 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-20 10:58:10,982 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 472 transitions, 6765 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:58:10,982 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:58:10,982 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-20 10:58:10,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand