./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b125b6fb-3c85-42ad-acd8-7d39c802ddc8/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b125b6fb-3c85-42ad-acd8-7d39c802ddc8/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b125b6fb-3c85-42ad-acd8-7d39c802ddc8/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b125b6fb-3c85-42ad-acd8-7d39c802ddc8/bin/uautomizer-TMbwUNV5ro/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_b125b6fb-3c85-42ad-acd8-7d39c802ddc8/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b125b6fb-3c85-42ad-acd8-7d39c802ddc8/bin/uautomizer-TMbwUNV5ro --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-8393723 [2022-11-18 20:38:04,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:38:04,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:38:04,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:38:04,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:38:04,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:38:04,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:38:04,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:38:04,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:38:04,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:38:04,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:38:04,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:38:04,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:38:04,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:38:04,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:38:04,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:38:04,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:38:04,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:38:04,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:38:04,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:38:04,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:38:04,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:38:04,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:38:04,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:38:04,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:38:04,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:38:04,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:38:04,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:38:04,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:38:04,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:38:04,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:38:04,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:38:04,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:38:04,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:38:04,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:38:04,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:38:04,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:38:04,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:38:04,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:38:04,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:38:04,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:38:04,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b125b6fb-3c85-42ad-acd8-7d39c802ddc8/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:38:04,133 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:38:04,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:38:04,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:38:04,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:38:04,134 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:38:04,135 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:38:04,135 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:38:04,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:38:04,136 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:38:04,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:38:04,136 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:38:04,137 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:38:04,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:38:04,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:38:04,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:38:04,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:38:04,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:38:04,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:38:04,138 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:38:04,138 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:38:04,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:38:04,139 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:38:04,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:38:04,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:38:04,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:38:04,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:38:04,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:38:04,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:38:04,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:38:04,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:38:04,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:38:04,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:38:04,141 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:38:04,141 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:38:04,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:38:04,142 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_b125b6fb-3c85-42ad-acd8-7d39c802ddc8/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b125b6fb-3c85-42ad-acd8-7d39c802ddc8/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2022-11-18 20:38:04,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:38:04,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:38:04,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:38:04,469 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:38:04,469 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:38:04,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b125b6fb-3c85-42ad-acd8-7d39c802ddc8/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-18 20:38:04,554 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b125b6fb-3c85-42ad-acd8-7d39c802ddc8/bin/uautomizer-TMbwUNV5ro/data/f45710f65/bab007959431404ab211993ee5731e9a/FLAG9d50bd35d [2022-11-18 20:38:05,227 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:38:05,227 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b125b6fb-3c85-42ad-acd8-7d39c802ddc8/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-18 20:38:05,262 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b125b6fb-3c85-42ad-acd8-7d39c802ddc8/bin/uautomizer-TMbwUNV5ro/data/f45710f65/bab007959431404ab211993ee5731e9a/FLAG9d50bd35d [2022-11-18 20:38:05,408 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b125b6fb-3c85-42ad-acd8-7d39c802ddc8/bin/uautomizer-TMbwUNV5ro/data/f45710f65/bab007959431404ab211993ee5731e9a [2022-11-18 20:38:05,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:38:05,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:38:05,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:38:05,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:38:05,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:38:05,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:38:05" (1/1) ... [2022-11-18 20:38:05,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9b7a644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:05, skipping insertion in model container [2022-11-18 20:38:05,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:38:05" (1/1) ... [2022-11-18 20:38:05,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:38:05,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:38:05,740 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 20:38:06,415 WARN L234 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_b125b6fb-3c85-42ad-acd8-7d39c802ddc8/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-18 20:38:06,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:38:06,478 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:38:06,491 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 20:38:06,542 WARN L234 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_b125b6fb-3c85-42ad-acd8-7d39c802ddc8/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-18 20:38:06,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:38:06,693 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:38:06,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:06 WrapperNode [2022-11-18 20:38:06,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:38:06,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:38:06,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:38:06,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:38:06,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:06" (1/1) ... [2022-11-18 20:38:06,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:06" (1/1) ... [2022-11-18 20:38:06,791 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-11-18 20:38:06,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:38:06,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:38:06,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:38:06,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:38:06,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:06" (1/1) ... [2022-11-18 20:38:06,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:06" (1/1) ... [2022-11-18 20:38:06,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:06" (1/1) ... [2022-11-18 20:38:06,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:06" (1/1) ... [2022-11-18 20:38:06,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:06" (1/1) ... [2022-11-18 20:38:06,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:06" (1/1) ... [2022-11-18 20:38:06,855 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:06" (1/1) ... [2022-11-18 20:38:06,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:06" (1/1) ... [2022-11-18 20:38:06,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:38:06,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:38:06,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:38:06,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:38:06,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:06" (1/1) ... [2022-11-18 20:38:06,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:38:06,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b125b6fb-3c85-42ad-acd8-7d39c802ddc8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:38:06,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b125b6fb-3c85-42ad-acd8-7d39c802ddc8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:38:06,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b125b6fb-3c85-42ad-acd8-7d39c802ddc8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:38:06,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:38:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:38:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:38:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:38:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:38:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:38:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:38:06,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:38:06,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:38:06,972 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-18 20:38:06,972 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-18 20:38:06,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:38:06,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:38:06,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:38:06,973 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:38:07,362 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:38:07,364 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:38:07,719 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:38:07,801 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:38:07,802 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:38:07,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:38:07 BoogieIcfgContainer [2022-11-18 20:38:07,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:38:07,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:38:07,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:38:07,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:38:07,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:38:05" (1/3) ... [2022-11-18 20:38:07,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e81724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:38:07, skipping insertion in model container [2022-11-18 20:38:07,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:06" (2/3) ... [2022-11-18 20:38:07,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e81724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:38:07, skipping insertion in model container [2022-11-18 20:38:07,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:38:07" (3/3) ... [2022-11-18 20:38:07,815 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2022-11-18 20:38:07,825 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:38:07,835 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:38:07,835 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 20:38:07,835 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:38:07,939 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 20:38:07,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 173 transitions, 362 flow [2022-11-18 20:38:08,117 INFO L130 PetriNetUnfolder]: 8/216 cut-off events. [2022-11-18 20:38:08,118 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:38:08,124 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. [2022-11-18 20:38:08,124 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 173 transitions, 362 flow [2022-11-18 20:38:08,133 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 139 transitions, 287 flow [2022-11-18 20:38:08,150 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:38:08,159 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;@5ea89334, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:38:08,159 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 20:38:08,191 INFO L130 PetriNetUnfolder]: 0/69 cut-off events. [2022-11-18 20:38:08,191 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:38:08,191 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:38:08,192 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] [2022-11-18 20:38:08,193 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:38:08,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:38:08,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1154381407, now seen corresponding path program 1 times [2022-11-18 20:38:08,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:38:08,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157221525] [2022-11-18 20:38:08,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:38:08,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:38:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:38:10,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:38:10,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:38:10,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157221525] [2022-11-18 20:38:10,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157221525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:38:10,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:38:10,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-18 20:38:10,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500487632] [2022-11-18 20:38:10,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:38:10,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 20:38:10,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:38:10,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 20:38:10,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:38:10,449 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 173 [2022-11-18 20:38:10,458 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) [2022-11-18 20:38:10,458 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:38:10,459 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 173 [2022-11-18 20:38:10,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:38:12,864 INFO L130 PetriNetUnfolder]: 1073/4073 cut-off events. [2022-11-18 20:38:12,864 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-11-18 20:38:12,878 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. [2022-11-18 20:38:12,898 INFO L137 encePairwiseOnDemand]: 153/173 looper letters, 82 selfloop transitions, 23 changer transitions 2/194 dead transitions. [2022-11-18 20:38:12,899 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 194 transitions, 617 flow [2022-11-18 20:38:12,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 20:38:12,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-18 20:38:12,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2151 transitions. [2022-11-18 20:38:12,925 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6907514450867052 [2022-11-18 20:38:12,926 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2151 transitions. [2022-11-18 20:38:12,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2151 transitions. [2022-11-18 20:38:12,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:38:12,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2151 transitions. [2022-11-18 20:38:12,944 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) [2022-11-18 20:38:12,957 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) [2022-11-18 20:38:12,959 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) [2022-11-18 20:38:12,961 INFO L175 Difference]: Start difference. First operand has 144 places, 139 transitions, 287 flow. Second operand 18 states and 2151 transitions. [2022-11-18 20:38:12,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 194 transitions, 617 flow [2022-11-18 20:38:12,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 194 transitions, 609 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:38:12,971 INFO L231 Difference]: Finished difference. Result has 165 places, 150 transitions, 403 flow [2022-11-18 20:38:12,973 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} [2022-11-18 20:38:12,977 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 21 predicate places. [2022-11-18 20:38:12,977 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 150 transitions, 403 flow [2022-11-18 20:38:12,978 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) [2022-11-18 20:38:12,978 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:38:12,979 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] [2022-11-18 20:38:12,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:38:12,979 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:38:12,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:38:12,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1816973476, now seen corresponding path program 1 times [2022-11-18 20:38:12,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:38:12,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323682779] [2022-11-18 20:38:12,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:38:12,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:38:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:38:14,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:38:14,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:38:14,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323682779] [2022-11-18 20:38:14,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323682779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:38:14,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:38:14,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-18 20:38:14,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434388885] [2022-11-18 20:38:14,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:38:14,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:38:14,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:38:14,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:38:14,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:38:14,287 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-18 20:38:14,289 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) [2022-11-18 20:38:14,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:38:14,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-18 20:38:14,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:38:16,739 INFO L130 PetriNetUnfolder]: 1529/4713 cut-off events. [2022-11-18 20:38:16,740 INFO L131 PetriNetUnfolder]: For 927/946 co-relation queries the response was YES. [2022-11-18 20:38:16,752 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. [2022-11-18 20:38:16,769 INFO L137 encePairwiseOnDemand]: 151/173 looper letters, 123 selfloop transitions, 41 changer transitions 2/245 dead transitions. [2022-11-18 20:38:16,769 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 245 transitions, 986 flow [2022-11-18 20:38:16,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:38:16,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:38:16,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2348 transitions. [2022-11-18 20:38:16,776 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.646297825488577 [2022-11-18 20:38:16,776 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2348 transitions. [2022-11-18 20:38:16,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2348 transitions. [2022-11-18 20:38:16,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:38:16,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2348 transitions. [2022-11-18 20:38:16,785 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) [2022-11-18 20:38:16,791 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) [2022-11-18 20:38:16,793 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) [2022-11-18 20:38:16,793 INFO L175 Difference]: Start difference. First operand has 165 places, 150 transitions, 403 flow. Second operand 21 states and 2348 transitions. [2022-11-18 20:38:16,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 245 transitions, 986 flow [2022-11-18 20:38:16,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 245 transitions, 975 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 20:38:16,814 INFO L231 Difference]: Finished difference. Result has 188 places, 176 transitions, 629 flow [2022-11-18 20:38:16,815 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} [2022-11-18 20:38:16,816 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 44 predicate places. [2022-11-18 20:38:16,817 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 176 transitions, 629 flow [2022-11-18 20:38:16,818 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) [2022-11-18 20:38:16,818 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:38:16,819 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] [2022-11-18 20:38:16,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:38:16,819 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:38:16,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:38:16,820 INFO L85 PathProgramCache]: Analyzing trace with hash -393296468, now seen corresponding path program 1 times [2022-11-18 20:38:16,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:38:16,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038448172] [2022-11-18 20:38:16,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:38:16,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:38:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:38:18,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:38:18,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:38:18,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038448172] [2022-11-18 20:38:18,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038448172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:38:18,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:38:18,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-18 20:38:18,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391643475] [2022-11-18 20:38:18,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:38:18,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:38:18,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:38:18,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:38:18,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:38:18,139 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-18 20:38:18,141 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) [2022-11-18 20:38:18,141 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:38:18,141 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-18 20:38:18,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:38:21,099 INFO L130 PetriNetUnfolder]: 2463/7820 cut-off events. [2022-11-18 20:38:21,099 INFO L131 PetriNetUnfolder]: For 6315/7383 co-relation queries the response was YES. [2022-11-18 20:38:21,139 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. [2022-11-18 20:38:21,175 INFO L137 encePairwiseOnDemand]: 151/173 looper letters, 121 selfloop transitions, 61 changer transitions 9/278 dead transitions. [2022-11-18 20:38:21,175 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 278 transitions, 1398 flow [2022-11-18 20:38:21,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:38:21,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:38:21,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2337 transitions. [2022-11-18 20:38:21,183 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.643270024772915 [2022-11-18 20:38:21,183 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2337 transitions. [2022-11-18 20:38:21,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2337 transitions. [2022-11-18 20:38:21,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:38:21,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2337 transitions. [2022-11-18 20:38:21,191 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) [2022-11-18 20:38:21,200 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) [2022-11-18 20:38:21,202 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) [2022-11-18 20:38:21,202 INFO L175 Difference]: Start difference. First operand has 188 places, 176 transitions, 629 flow. Second operand 21 states and 2337 transitions. [2022-11-18 20:38:21,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 278 transitions, 1398 flow [2022-11-18 20:38:21,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 278 transitions, 1324 flow, removed 28 selfloop flow, removed 10 redundant places. [2022-11-18 20:38:21,315 INFO L231 Difference]: Finished difference. Result has 207 places, 213 transitions, 976 flow [2022-11-18 20:38:21,315 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} [2022-11-18 20:38:21,316 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 63 predicate places. [2022-11-18 20:38:21,316 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 213 transitions, 976 flow [2022-11-18 20:38:21,317 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) [2022-11-18 20:38:21,318 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:38:21,326 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] [2022-11-18 20:38:21,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:38:21,327 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:38:21,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:38:21,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1153865424, now seen corresponding path program 1 times [2022-11-18 20:38:21,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:38:21,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72510740] [2022-11-18 20:38:21,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:38:21,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:38:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:38:22,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:38:22,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:38:22,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72510740] [2022-11-18 20:38:22,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72510740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:38:22,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:38:22,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-18 20:38:22,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342020918] [2022-11-18 20:38:22,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:38:22,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:38:22,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:38:22,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:38:22,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:38:22,587 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-18 20:38:22,589 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) [2022-11-18 20:38:22,589 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:38:22,590 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-18 20:38:22,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:38:29,901 INFO L130 PetriNetUnfolder]: 4352/16316 cut-off events. [2022-11-18 20:38:29,901 INFO L131 PetriNetUnfolder]: For 12697/19178 co-relation queries the response was YES. [2022-11-18 20:38:29,996 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. [2022-11-18 20:38:30,050 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 432 selfloop transitions, 74 changer transitions 4/610 dead transitions. [2022-11-18 20:38:30,051 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 610 transitions, 3955 flow [2022-11-18 20:38:30,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 20:38:30,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-18 20:38:30,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3700 transitions. [2022-11-18 20:38:30,059 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.763831544178365 [2022-11-18 20:38:30,059 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3700 transitions. [2022-11-18 20:38:30,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3700 transitions. [2022-11-18 20:38:30,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:38:30,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3700 transitions. [2022-11-18 20:38:30,075 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) [2022-11-18 20:38:30,083 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) [2022-11-18 20:38:30,086 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) [2022-11-18 20:38:30,086 INFO L175 Difference]: Start difference. First operand has 207 places, 213 transitions, 976 flow. Second operand 28 states and 3700 transitions. [2022-11-18 20:38:30,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 610 transitions, 3955 flow [2022-11-18 20:38:30,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 610 transitions, 3886 flow, removed 27 selfloop flow, removed 8 redundant places. [2022-11-18 20:38:30,190 INFO L231 Difference]: Finished difference. Result has 239 places, 265 transitions, 1581 flow [2022-11-18 20:38:30,191 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} [2022-11-18 20:38:30,194 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 95 predicate places. [2022-11-18 20:38:30,194 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 265 transitions, 1581 flow [2022-11-18 20:38:30,195 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) [2022-11-18 20:38:30,196 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:38:30,196 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] [2022-11-18 20:38:30,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:38:30,196 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:38:30,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:38:30,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1387257904, now seen corresponding path program 2 times [2022-11-18 20:38:30,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:38:30,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220298173] [2022-11-18 20:38:30,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:38:30,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:38:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:38:31,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:38:31,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:38:31,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220298173] [2022-11-18 20:38:31,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220298173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:38:31,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:38:31,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-18 20:38:31,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327644437] [2022-11-18 20:38:31,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:38:31,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:38:31,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:38:31,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:38:31,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:38:31,421 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-18 20:38:31,424 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) [2022-11-18 20:38:31,424 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:38:31,424 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-18 20:38:31,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:38:39,614 INFO L130 PetriNetUnfolder]: 6090/22209 cut-off events. [2022-11-18 20:38:39,614 INFO L131 PetriNetUnfolder]: For 34935/46306 co-relation queries the response was YES. [2022-11-18 20:38:39,787 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. [2022-11-18 20:38:39,884 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 449 selfloop transitions, 119 changer transitions 4/672 dead transitions. [2022-11-18 20:38:39,884 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 672 transitions, 5315 flow [2022-11-18 20:38:39,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 20:38:39,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-18 20:38:39,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3699 transitions. [2022-11-18 20:38:39,894 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7636251032204789 [2022-11-18 20:38:39,895 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3699 transitions. [2022-11-18 20:38:39,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3699 transitions. [2022-11-18 20:38:39,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:38:39,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3699 transitions. [2022-11-18 20:38:39,907 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) [2022-11-18 20:38:39,917 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) [2022-11-18 20:38:39,919 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) [2022-11-18 20:38:39,920 INFO L175 Difference]: Start difference. First operand has 239 places, 265 transitions, 1581 flow. Second operand 28 states and 3699 transitions. [2022-11-18 20:38:39,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 672 transitions, 5315 flow [2022-11-18 20:38:40,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 672 transitions, 5239 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-11-18 20:38:40,169 INFO L231 Difference]: Finished difference. Result has 273 places, 318 transitions, 2529 flow [2022-11-18 20:38:40,169 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} [2022-11-18 20:38:40,170 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 129 predicate places. [2022-11-18 20:38:40,171 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 318 transitions, 2529 flow [2022-11-18 20:38:40,172 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) [2022-11-18 20:38:40,172 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:38:40,173 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] [2022-11-18 20:38:40,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:38:40,173 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:38:40,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:38:40,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1346274258, now seen corresponding path program 1 times [2022-11-18 20:38:40,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:38:40,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081567951] [2022-11-18 20:38:40,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:38:40,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:38:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:38:41,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:38:41,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:38:41,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081567951] [2022-11-18 20:38:41,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081567951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:38:41,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:38:41,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-18 20:38:41,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034821968] [2022-11-18 20:38:41,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:38:41,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:38:41,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:38:41,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:38:41,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:38:41,632 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-18 20:38:41,635 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) [2022-11-18 20:38:41,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:38:41,636 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-18 20:38:41,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:38:49,680 INFO L130 PetriNetUnfolder]: 6379/22401 cut-off events. [2022-11-18 20:38:49,680 INFO L131 PetriNetUnfolder]: For 67210/80793 co-relation queries the response was YES. [2022-11-18 20:38:49,888 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. [2022-11-18 20:38:50,141 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 472 selfloop transitions, 169 changer transitions 4/745 dead transitions. [2022-11-18 20:38:50,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 745 transitions, 7629 flow [2022-11-18 20:38:50,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 20:38:50,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-18 20:38:50,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3671 transitions. [2022-11-18 20:38:50,150 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7578447563996696 [2022-11-18 20:38:50,151 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3671 transitions. [2022-11-18 20:38:50,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3671 transitions. [2022-11-18 20:38:50,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:38:50,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3671 transitions. [2022-11-18 20:38:50,168 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) [2022-11-18 20:38:50,178 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) [2022-11-18 20:38:50,180 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) [2022-11-18 20:38:50,180 INFO L175 Difference]: Start difference. First operand has 273 places, 318 transitions, 2529 flow. Second operand 28 states and 3671 transitions. [2022-11-18 20:38:50,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 745 transitions, 7629 flow [2022-11-18 20:38:50,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 745 transitions, 7505 flow, removed 41 selfloop flow, removed 11 redundant places. [2022-11-18 20:38:50,670 INFO L231 Difference]: Finished difference. Result has 301 places, 395 transitions, 4111 flow [2022-11-18 20:38:50,671 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} [2022-11-18 20:38:50,674 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 157 predicate places. [2022-11-18 20:38:50,675 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 395 transitions, 4111 flow [2022-11-18 20:38:50,675 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) [2022-11-18 20:38:50,676 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:38:50,676 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] [2022-11-18 20:38:50,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:38:50,677 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:38:50,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:38:50,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1867025932, now seen corresponding path program 3 times [2022-11-18 20:38:50,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:38:50,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963199523] [2022-11-18 20:38:50,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:38:50,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:38:50,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:38:52,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:38:52,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:38:52,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963199523] [2022-11-18 20:38:52,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963199523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:38:52,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:38:52,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-18 20:38:52,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581392892] [2022-11-18 20:38:52,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:38:52,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:38:52,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:38:52,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:38:52,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:38:52,108 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-18 20:38:52,110 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) [2022-11-18 20:38:52,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:38:52,110 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-18 20:38:52,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:39:00,546 INFO L130 PetriNetUnfolder]: 6476/24360 cut-off events. [2022-11-18 20:39:00,546 INFO L131 PetriNetUnfolder]: For 90094/104914 co-relation queries the response was YES. [2022-11-18 20:39:00,815 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. [2022-11-18 20:39:00,902 INFO L137 encePairwiseOnDemand]: 155/173 looper letters, 482 selfloop transitions, 166 changer transitions 2/750 dead transitions. [2022-11-18 20:39:00,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 750 transitions, 8138 flow [2022-11-18 20:39:00,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 20:39:00,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-18 20:39:00,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3682 transitions. [2022-11-18 20:39:00,909 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7601156069364162 [2022-11-18 20:39:00,909 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3682 transitions. [2022-11-18 20:39:00,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3682 transitions. [2022-11-18 20:39:00,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:39:00,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3682 transitions. [2022-11-18 20:39:00,916 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) [2022-11-18 20:39:00,923 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) [2022-11-18 20:39:00,925 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) [2022-11-18 20:39:00,925 INFO L175 Difference]: Start difference. First operand has 301 places, 395 transitions, 4111 flow. Second operand 28 states and 3682 transitions. [2022-11-18 20:39:00,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 750 transitions, 8138 flow [2022-11-18 20:39:01,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 750 transitions, 7745 flow, removed 160 selfloop flow, removed 13 redundant places. [2022-11-18 20:39:01,693 INFO L231 Difference]: Finished difference. Result has 321 places, 408 transitions, 4569 flow [2022-11-18 20:39:01,694 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} [2022-11-18 20:39:01,694 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 177 predicate places. [2022-11-18 20:39:01,694 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 408 transitions, 4569 flow [2022-11-18 20:39:01,695 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) [2022-11-18 20:39:01,695 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:39:01,695 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] [2022-11-18 20:39:01,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:39:01,696 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:39:01,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:39:01,696 INFO L85 PathProgramCache]: Analyzing trace with hash -829470714, now seen corresponding path program 4 times [2022-11-18 20:39:01,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:39:01,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381134678] [2022-11-18 20:39:01,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:39:01,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:39:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:39:02,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:39:02,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:39:02,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381134678] [2022-11-18 20:39:02,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381134678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:39:02,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:39:02,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 20:39:02,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107859803] [2022-11-18 20:39:02,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:39:02,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:39:02,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:39:02,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:39:02,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:39:02,799 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-18 20:39:02,801 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) [2022-11-18 20:39:02,801 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:39:02,802 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-18 20:39:02,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:39:11,661 INFO L130 PetriNetUnfolder]: 6826/26164 cut-off events. [2022-11-18 20:39:11,661 INFO L131 PetriNetUnfolder]: For 106615/121550 co-relation queries the response was YES. [2022-11-18 20:39:11,949 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. [2022-11-18 20:39:12,033 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 518 selfloop transitions, 181 changer transitions 2/801 dead transitions. [2022-11-18 20:39:12,033 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 801 transitions, 9021 flow [2022-11-18 20:39:12,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 20:39:12,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-18 20:39:12,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3695 transitions. [2022-11-18 20:39:12,040 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7627993393889347 [2022-11-18 20:39:12,040 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3695 transitions. [2022-11-18 20:39:12,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3695 transitions. [2022-11-18 20:39:12,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:39:12,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3695 transitions. [2022-11-18 20:39:12,047 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) [2022-11-18 20:39:12,054 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) [2022-11-18 20:39:12,055 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) [2022-11-18 20:39:12,056 INFO L175 Difference]: Start difference. First operand has 321 places, 408 transitions, 4569 flow. Second operand 28 states and 3695 transitions. [2022-11-18 20:39:12,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 801 transitions, 9021 flow [2022-11-18 20:39:13,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 801 transitions, 8755 flow, removed 17 selfloop flow, removed 20 redundant places. [2022-11-18 20:39:13,056 INFO L231 Difference]: Finished difference. Result has 340 places, 440 transitions, 5490 flow [2022-11-18 20:39:13,056 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} [2022-11-18 20:39:13,057 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 196 predicate places. [2022-11-18 20:39:13,057 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 440 transitions, 5490 flow [2022-11-18 20:39:13,058 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) [2022-11-18 20:39:13,058 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:39:13,059 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] [2022-11-18 20:39:13,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:39:13,059 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:39:13,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:39:13,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1762241286, now seen corresponding path program 5 times [2022-11-18 20:39:13,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:39:13,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142259252] [2022-11-18 20:39:13,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:39:13,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:39:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:39:14,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:39:14,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:39:14,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142259252] [2022-11-18 20:39:14,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142259252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:39:14,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:39:14,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 20:39:14,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841878643] [2022-11-18 20:39:14,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:39:14,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:39:14,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:39:14,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:39:14,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:39:14,161 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-18 20:39:14,164 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) [2022-11-18 20:39:14,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:39:14,165 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-18 20:39:14,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:39:23,736 INFO L130 PetriNetUnfolder]: 7101/27908 cut-off events. [2022-11-18 20:39:23,737 INFO L131 PetriNetUnfolder]: For 128970/144996 co-relation queries the response was YES. [2022-11-18 20:39:24,098 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. [2022-11-18 20:39:24,163 INFO L137 encePairwiseOnDemand]: 155/173 looper letters, 504 selfloop transitions, 191 changer transitions 2/797 dead transitions. [2022-11-18 20:39:24,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 797 transitions, 9604 flow [2022-11-18 20:39:24,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 20:39:24,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-18 20:39:24,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3683 transitions. [2022-11-18 20:39:24,169 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7603220478943022 [2022-11-18 20:39:24,169 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3683 transitions. [2022-11-18 20:39:24,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3683 transitions. [2022-11-18 20:39:24,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:39:24,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3683 transitions. [2022-11-18 20:39:24,178 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) [2022-11-18 20:39:24,184 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) [2022-11-18 20:39:24,185 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) [2022-11-18 20:39:24,185 INFO L175 Difference]: Start difference. First operand has 340 places, 440 transitions, 5490 flow. Second operand 28 states and 3683 transitions. [2022-11-18 20:39:24,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 797 transitions, 9604 flow [2022-11-18 20:39:25,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 797 transitions, 9332 flow, removed 77 selfloop flow, removed 14 redundant places. [2022-11-18 20:39:25,312 INFO L231 Difference]: Finished difference. Result has 361 places, 460 transitions, 6236 flow [2022-11-18 20:39:25,312 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} [2022-11-18 20:39:25,313 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 217 predicate places. [2022-11-18 20:39:25,313 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 460 transitions, 6236 flow [2022-11-18 20:39:25,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:39:25,314 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:39:25,314 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] [2022-11-18 20:39:25,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:39:25,314 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:39:25,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:39:25,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1370506008, now seen corresponding path program 6 times [2022-11-18 20:39:25,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:39:25,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569665809] [2022-11-18 20:39:25,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:39:25,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:39:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:39:26,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:39:26,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:39:26,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569665809] [2022-11-18 20:39:26,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569665809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:39:26,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:39:26,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 20:39:26,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807414217] [2022-11-18 20:39:26,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:39:26,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:39:26,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:39:26,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:39:26,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:39:26,267 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-18 20:39:26,269 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) [2022-11-18 20:39:26,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:39:26,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-18 20:39:26,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:39:35,178 INFO L130 PetriNetUnfolder]: 6321/23186 cut-off events. [2022-11-18 20:39:35,178 INFO L131 PetriNetUnfolder]: For 120242/137466 co-relation queries the response was YES. [2022-11-18 20:39:35,512 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. [2022-11-18 20:39:35,574 INFO L137 encePairwiseOnDemand]: 155/173 looper letters, 508 selfloop transitions, 192 changer transitions 0/800 dead transitions. [2022-11-18 20:39:35,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 800 transitions, 10012 flow [2022-11-18 20:39:35,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 20:39:35,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-18 20:39:35,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3684 transitions. [2022-11-18 20:39:35,580 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7605284888521883 [2022-11-18 20:39:35,580 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3684 transitions. [2022-11-18 20:39:35,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3684 transitions. [2022-11-18 20:39:35,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:39:35,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3684 transitions. [2022-11-18 20:39:35,590 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) [2022-11-18 20:39:35,597 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) [2022-11-18 20:39:35,598 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) [2022-11-18 20:39:35,598 INFO L175 Difference]: Start difference. First operand has 361 places, 460 transitions, 6236 flow. Second operand 28 states and 3684 transitions. [2022-11-18 20:39:35,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 800 transitions, 10012 flow [2022-11-18 20:39:36,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 800 transitions, 9690 flow, removed 67 selfloop flow, removed 18 redundant places. [2022-11-18 20:39:36,586 INFO L231 Difference]: Finished difference. Result has 380 places, 472 transitions, 6765 flow [2022-11-18 20:39:36,587 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} [2022-11-18 20:39:36,587 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 236 predicate places. [2022-11-18 20:39:36,588 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 472 transitions, 6765 flow [2022-11-18 20:39:36,589 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) [2022-11-18 20:39:36,589 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:39:36,590 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] [2022-11-18 20:39:36,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:39:36,590 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:39:36,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:39:36,591 INFO L85 PathProgramCache]: Analyzing trace with hash 238717968, now seen corresponding path program 7 times [2022-11-18 20:39:36,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:39:36,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510477425] [2022-11-18 20:39:36,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:39:36,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:39:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:39:37,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:39:37,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:39:37,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510477425] [2022-11-18 20:39:37,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510477425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:39:37,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:39:37,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-18 20:39:37,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932805118] [2022-11-18 20:39:37,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:39:37,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:39:37,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:39:37,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:39:37,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:39:37,727 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-18 20:39:37,729 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) [2022-11-18 20:39:37,729 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:39:37,729 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-18 20:39:37,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand