./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03773f32-98c1-4314-abbb-37fd66a0adfc/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03773f32-98c1-4314-abbb-37fd66a0adfc/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03773f32-98c1-4314-abbb-37fd66a0adfc/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03773f32-98c1-4314-abbb-37fd66a0adfc/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03773f32-98c1-4314-abbb-37fd66a0adfc/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03773f32-98c1-4314-abbb-37fd66a0adfc/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 79b55bbc1c83a113dd61cfbd1c59324170026eea9fc3fed8c2e488e492b32e33 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:49:05,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:49:05,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:49:05,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:49:05,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:49:05,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:49:05,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:49:05,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:49:05,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:49:05,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:49:05,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:49:05,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:49:05,920 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:49:05,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:49:05,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:49:05,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:49:05,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:49:05,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:49:05,935 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:49:05,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:49:05,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:49:05,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:49:05,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:49:05,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:49:05,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:49:05,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:49:05,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:49:05,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:49:05,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:49:05,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:49:05,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:49:05,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:49:05,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:49:05,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:49:05,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:49:05,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:49:05,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:49:05,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:49:05,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:49:05,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:49:05,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:49:05,973 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03773f32-98c1-4314-abbb-37fd66a0adfc/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 11:49:06,015 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:49:06,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:49:06,016 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:49:06,016 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:49:06,017 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:49:06,018 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:49:06,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:49:06,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:49:06,019 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:49:06,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:49:06,020 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:49:06,020 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:49:06,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:49:06,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:49:06,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:49:06,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:49:06,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:49:06,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:49:06,022 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:49:06,022 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:49:06,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:49:06,022 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:49:06,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:49:06,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:49:06,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:49:06,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:49:06,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:49:06,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:49:06,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:49:06,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:49:06,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:49:06,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:49:06,025 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:49:06,025 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:49:06,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:49:06,026 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_03773f32-98c1-4314-abbb-37fd66a0adfc/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03773f32-98c1-4314-abbb-37fd66a0adfc/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79b55bbc1c83a113dd61cfbd1c59324170026eea9fc3fed8c2e488e492b32e33 [2022-11-20 11:49:06,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:49:06,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:49:06,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:49:06,289 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:49:06,289 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:49:06,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03773f32-98c1-4314-abbb-37fd66a0adfc/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2022-11-20 11:49:09,334 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:49:09,723 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:49:09,724 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03773f32-98c1-4314-abbb-37fd66a0adfc/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2022-11-20 11:49:09,750 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03773f32-98c1-4314-abbb-37fd66a0adfc/bin/uautomizer-ug76WZFUDN/data/df99e9160/f6853c0953a243a38737f9cc1ff4074a/FLAG758b990ed [2022-11-20 11:49:09,766 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03773f32-98c1-4314-abbb-37fd66a0adfc/bin/uautomizer-ug76WZFUDN/data/df99e9160/f6853c0953a243a38737f9cc1ff4074a [2022-11-20 11:49:09,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:49:09,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:49:09,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:49:09,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:49:09,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:49:09,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:49:09" (1/1) ... [2022-11-20 11:49:09,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa1539d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:09, skipping insertion in model container [2022-11-20 11:49:09,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:49:09" (1/1) ... [2022-11-20 11:49:09,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:49:09,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:49:10,629 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03773f32-98c1-4314-abbb-37fd66a0adfc/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-11-20 11:49:10,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:49:10,678 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:49:10,726 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03773f32-98c1-4314-abbb-37fd66a0adfc/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-11-20 11:49:10,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:49:10,865 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:49:10,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10 WrapperNode [2022-11-20 11:49:10,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:49:10,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:49:10,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:49:10,867 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:49:10,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2022-11-20 11:49:10,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2022-11-20 11:49:10,968 INFO L138 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 134 [2022-11-20 11:49:10,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:49:10,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:49:10,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:49:10,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:49:10,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2022-11-20 11:49:10,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2022-11-20 11:49:10,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2022-11-20 11:49:10,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2022-11-20 11:49:11,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2022-11-20 11:49:11,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2022-11-20 11:49:11,020 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2022-11-20 11:49:11,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2022-11-20 11:49:11,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:49:11,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:49:11,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:49:11,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:49:11,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2022-11-20 11:49:11,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:49:11,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03773f32-98c1-4314-abbb-37fd66a0adfc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:11,063 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03773f32-98c1-4314-abbb-37fd66a0adfc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:11,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03773f32-98c1-4314-abbb-37fd66a0adfc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:49:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:49:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:49:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:49:11,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:49:11,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:49:11,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:49:11,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:49:11,129 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-20 11:49:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-20 11:49:11,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:49:11,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:49:11,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:49:11,132 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:49:11,483 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:49:11,485 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:49:11,891 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:49:11,901 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:49:11,901 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:49:11,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:49:11 BoogieIcfgContainer [2022-11-20 11:49:11,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:49:11,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:49:11,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:49:11,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:49:11,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:49:09" (1/3) ... [2022-11-20 11:49:11,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa91a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:49:11, skipping insertion in model container [2022-11-20 11:49:11,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (2/3) ... [2022-11-20 11:49:11,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa91a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:49:11, skipping insertion in model container [2022-11-20 11:49:11,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:49:11" (3/3) ... [2022-11-20 11:49:11,912 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2022-11-20 11:49:11,921 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:49:11,932 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:49:11,933 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 11:49:11,933 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:49:12,005 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 11:49:12,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 194 places, 196 transitions, 408 flow [2022-11-20 11:49:12,152 INFO L130 PetriNetUnfolder]: 10/239 cut-off events. [2022-11-20 11:49:12,152 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 11:49:12,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 239 events. 10/239 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 398 event pairs, 0 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 141. Up to 4 conditions per place. [2022-11-20 11:49:12,158 INFO L82 GeneralOperation]: Start removeDead. Operand has 194 places, 196 transitions, 408 flow [2022-11-20 11:49:12,169 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 165 places, 162 transitions, 333 flow [2022-11-20 11:49:12,185 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:49:12,195 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;@12c7d31b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:49:12,196 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-20 11:49:12,235 INFO L130 PetriNetUnfolder]: 2/89 cut-off events. [2022-11-20 11:49:12,235 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:49:12,235 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:49:12,236 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, 1, 1] [2022-11-20 11:49:12,237 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:49:12,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:12,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1897204562, now seen corresponding path program 1 times [2022-11-20 11:49:12,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:12,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521482761] [2022-11-20 11:49:12,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:12,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:14,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:49:14,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:14,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521482761] [2022-11-20 11:49:14,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521482761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:14,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:14,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-20 11:49:14,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492421957] [2022-11-20 11:49:14,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:14,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 11:49:14,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:14,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 11:49:14,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:49:14,435 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 196 [2022-11-20 11:49:14,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 162 transitions, 333 flow. Second operand has 15 states, 15 states have (on average 96.6) internal successors, (1449), 15 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:14,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:49:14,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 196 [2022-11-20 11:49:14,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:49:16,523 INFO L130 PetriNetUnfolder]: 3091/6617 cut-off events. [2022-11-20 11:49:16,523 INFO L131 PetriNetUnfolder]: For 25/30 co-relation queries the response was YES. [2022-11-20 11:49:16,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11633 conditions, 6617 events. 3091/6617 cut-off events. For 25/30 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 53895 event pairs, 2258 based on Foata normal form. 182/6110 useless extension candidates. Maximal degree in co-relation 11459. Up to 3722 conditions per place. [2022-11-20 11:49:16,570 INFO L137 encePairwiseOnDemand]: 175/196 looper letters, 118 selfloop transitions, 21 changer transitions 4/222 dead transitions. [2022-11-20 11:49:16,570 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 222 transitions, 742 flow [2022-11-20 11:49:16,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 11:49:16,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-20 11:49:16,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1659 transitions. [2022-11-20 11:49:16,589 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5290178571428571 [2022-11-20 11:49:16,590 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1659 transitions. [2022-11-20 11:49:16,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1659 transitions. [2022-11-20 11:49:16,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:49:16,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1659 transitions. [2022-11-20 11:49:16,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 103.6875) internal successors, (1659), 16 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:16,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 196.0) internal successors, (3332), 17 states have internal predecessors, (3332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:16,618 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 196.0) internal successors, (3332), 17 states have internal predecessors, (3332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:16,620 INFO L175 Difference]: Start difference. First operand has 165 places, 162 transitions, 333 flow. Second operand 16 states and 1659 transitions. [2022-11-20 11:49:16,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 222 transitions, 742 flow [2022-11-20 11:49:16,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 222 transitions, 736 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 11:49:16,631 INFO L231 Difference]: Finished difference. Result has 180 places, 166 transitions, 429 flow [2022-11-20 11:49:16,633 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=429, PETRI_PLACES=180, PETRI_TRANSITIONS=166} [2022-11-20 11:49:16,638 INFO L288 CegarLoopForPetriNet]: 165 programPoint places, 15 predicate places. [2022-11-20 11:49:16,638 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 166 transitions, 429 flow [2022-11-20 11:49:16,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 96.6) internal successors, (1449), 15 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:16,639 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:49:16,640 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:16,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:49:16,640 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:49:16,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:16,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1164267883, now seen corresponding path program 1 times [2022-11-20 11:49:16,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:16,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520036556] [2022-11-20 11:49:16,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:16,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:18,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:49:18,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:18,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520036556] [2022-11-20 11:49:18,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520036556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:18,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:18,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-20 11:49:18,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322485190] [2022-11-20 11:49:18,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:18,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-20 11:49:18,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:18,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-20 11:49:18,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:49:18,292 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 196 [2022-11-20 11:49:18,295 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 166 transitions, 429 flow. Second operand has 21 states, 21 states have (on average 94.0) internal successors, (1974), 21 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:18,295 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:49:18,295 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 196 [2022-11-20 11:49:18,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:49:20,917 INFO L130 PetriNetUnfolder]: 3693/7831 cut-off events. [2022-11-20 11:49:20,918 INFO L131 PetriNetUnfolder]: For 3366/3371 co-relation queries the response was YES. [2022-11-20 11:49:20,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15803 conditions, 7831 events. 3693/7831 cut-off events. For 3366/3371 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 65474 event pairs, 1451 based on Foata normal form. 204/7539 useless extension candidates. Maximal degree in co-relation 14218. Up to 3535 conditions per place. [2022-11-20 11:49:20,972 INFO L137 encePairwiseOnDemand]: 173/196 looper letters, 145 selfloop transitions, 39 changer transitions 2/263 dead transitions. [2022-11-20 11:49:20,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 263 transitions, 1057 flow [2022-11-20 11:49:20,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:49:20,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:49:20,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2024 transitions. [2022-11-20 11:49:20,979 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5163265306122449 [2022-11-20 11:49:20,980 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2024 transitions. [2022-11-20 11:49:20,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2024 transitions. [2022-11-20 11:49:20,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:49:20,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2024 transitions. [2022-11-20 11:49:20,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 101.2) internal successors, (2024), 20 states have internal predecessors, (2024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:20,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 196.0) internal successors, (4116), 21 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:20,997 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 196.0) internal successors, (4116), 21 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:20,997 INFO L175 Difference]: Start difference. First operand has 180 places, 166 transitions, 429 flow. Second operand 20 states and 2024 transitions. [2022-11-20 11:49:20,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 263 transitions, 1057 flow [2022-11-20 11:49:21,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 263 transitions, 1046 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:49:21,049 INFO L231 Difference]: Finished difference. Result has 198 places, 188 transitions, 639 flow [2022-11-20 11:49:21,049 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=639, PETRI_PLACES=198, PETRI_TRANSITIONS=188} [2022-11-20 11:49:21,050 INFO L288 CegarLoopForPetriNet]: 165 programPoint places, 33 predicate places. [2022-11-20 11:49:21,050 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 188 transitions, 639 flow [2022-11-20 11:49:21,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 94.0) internal successors, (1974), 21 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:21,051 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:49:21,052 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:21,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:49:21,052 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:49:21,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:21,053 INFO L85 PathProgramCache]: Analyzing trace with hash 753738509, now seen corresponding path program 1 times [2022-11-20 11:49:21,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:21,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418888320] [2022-11-20 11:49:21,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:21,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:22,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:49:22,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:22,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418888320] [2022-11-20 11:49:22,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418888320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:22,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:22,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-20 11:49:22,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605162940] [2022-11-20 11:49:22,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:22,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-20 11:49:22,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:22,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-20 11:49:22,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:49:22,716 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 196 [2022-11-20 11:49:22,719 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 188 transitions, 639 flow. Second operand has 21 states, 21 states have (on average 94.04761904761905) internal successors, (1975), 21 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:22,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:49:22,720 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 196 [2022-11-20 11:49:22,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:49:25,591 INFO L130 PetriNetUnfolder]: 5102/11107 cut-off events. [2022-11-20 11:49:25,592 INFO L131 PetriNetUnfolder]: For 9126/10788 co-relation queries the response was YES. [2022-11-20 11:49:25,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25851 conditions, 11107 events. 5102/11107 cut-off events. For 9126/10788 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 101169 event pairs, 2086 based on Foata normal form. 37/10224 useless extension candidates. Maximal degree in co-relation 23582. Up to 6771 conditions per place. [2022-11-20 11:49:25,866 INFO L137 encePairwiseOnDemand]: 173/196 looper letters, 152 selfloop transitions, 42 changer transitions 5/282 dead transitions. [2022-11-20 11:49:25,867 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 282 transitions, 1344 flow [2022-11-20 11:49:25,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:49:25,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:49:25,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2017 transitions. [2022-11-20 11:49:25,881 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5145408163265306 [2022-11-20 11:49:25,881 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2017 transitions. [2022-11-20 11:49:25,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2017 transitions. [2022-11-20 11:49:25,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:49:25,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2017 transitions. [2022-11-20 11:49:25,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 100.85) internal successors, (2017), 20 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:25,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 196.0) internal successors, (4116), 21 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:25,900 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 196.0) internal successors, (4116), 21 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:25,900 INFO L175 Difference]: Start difference. First operand has 198 places, 188 transitions, 639 flow. Second operand 20 states and 2017 transitions. [2022-11-20 11:49:25,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 282 transitions, 1344 flow [2022-11-20 11:49:25,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 282 transitions, 1273 flow, removed 25 selfloop flow, removed 10 redundant places. [2022-11-20 11:49:26,000 INFO L231 Difference]: Finished difference. Result has 213 places, 207 transitions, 826 flow [2022-11-20 11:49:26,001 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=826, PETRI_PLACES=213, PETRI_TRANSITIONS=207} [2022-11-20 11:49:26,002 INFO L288 CegarLoopForPetriNet]: 165 programPoint places, 48 predicate places. [2022-11-20 11:49:26,002 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 207 transitions, 826 flow [2022-11-20 11:49:26,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 94.04761904761905) internal successors, (1975), 21 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:26,003 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:49:26,004 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:26,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:49:26,004 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:49:26,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:26,005 INFO L85 PathProgramCache]: Analyzing trace with hash -189343988, now seen corresponding path program 1 times [2022-11-20 11:49:26,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:26,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082247218] [2022-11-20 11:49:26,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:26,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:27,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:49:27,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:27,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082247218] [2022-11-20 11:49:27,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082247218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:27,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:27,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-20 11:49:27,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349775537] [2022-11-20 11:49:27,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:27,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 11:49:27,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:27,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 11:49:27,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:49:27,874 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 196 [2022-11-20 11:49:27,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 207 transitions, 826 flow. Second operand has 22 states, 22 states have (on average 91.13636363636364) internal successors, (2005), 22 states have internal predecessors, (2005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:27,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:49:27,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 196 [2022-11-20 11:49:27,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:49:33,905 INFO L130 PetriNetUnfolder]: 9172/18197 cut-off events. [2022-11-20 11:49:33,905 INFO L131 PetriNetUnfolder]: For 23536/27364 co-relation queries the response was YES. [2022-11-20 11:49:33,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46050 conditions, 18197 events. 9172/18197 cut-off events. For 23536/27364 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 160458 event pairs, 2631 based on Foata normal form. 443/17799 useless extension candidates. Maximal degree in co-relation 42367. Up to 8298 conditions per place. [2022-11-20 11:49:34,044 INFO L137 encePairwiseOnDemand]: 173/196 looper letters, 225 selfloop transitions, 82 changer transitions 6/389 dead transitions. [2022-11-20 11:49:34,044 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 389 transitions, 2124 flow [2022-11-20 11:49:34,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-20 11:49:34,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-20 11:49:34,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2595 transitions. [2022-11-20 11:49:34,053 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5092229199372057 [2022-11-20 11:49:34,053 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2595 transitions. [2022-11-20 11:49:34,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2595 transitions. [2022-11-20 11:49:34,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:49:34,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2595 transitions. [2022-11-20 11:49:34,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 99.8076923076923) internal successors, (2595), 26 states have internal predecessors, (2595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:34,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 196.0) internal successors, (5292), 27 states have internal predecessors, (5292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:34,076 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 196.0) internal successors, (5292), 27 states have internal predecessors, (5292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:34,077 INFO L175 Difference]: Start difference. First operand has 213 places, 207 transitions, 826 flow. Second operand 26 states and 2595 transitions. [2022-11-20 11:49:34,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 389 transitions, 2124 flow [2022-11-20 11:49:34,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 389 transitions, 2063 flow, removed 20 selfloop flow, removed 10 redundant places. [2022-11-20 11:49:34,513 INFO L231 Difference]: Finished difference. Result has 238 places, 246 transitions, 1331 flow [2022-11-20 11:49:34,513 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=787, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=1331, PETRI_PLACES=238, PETRI_TRANSITIONS=246} [2022-11-20 11:49:34,515 INFO L288 CegarLoopForPetriNet]: 165 programPoint places, 73 predicate places. [2022-11-20 11:49:34,516 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 246 transitions, 1331 flow [2022-11-20 11:49:34,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 91.13636363636364) internal successors, (2005), 22 states have internal predecessors, (2005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:34,522 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:49:34,523 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:34,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:49:34,523 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:49:34,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:34,525 INFO L85 PathProgramCache]: Analyzing trace with hash 2054388304, now seen corresponding path program 1 times [2022-11-20 11:49:34,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:34,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074868207] [2022-11-20 11:49:34,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:34,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:36,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:49:36,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:36,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074868207] [2022-11-20 11:49:36,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074868207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:36,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:36,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-20 11:49:36,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375406922] [2022-11-20 11:49:36,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:36,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 11:49:36,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:36,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 11:49:36,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2022-11-20 11:49:36,548 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 196 [2022-11-20 11:49:36,550 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 246 transitions, 1331 flow. Second operand has 25 states, 25 states have (on average 89.92) internal successors, (2248), 25 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:36,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:49:36,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 196 [2022-11-20 11:49:36,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:49:42,086 INFO L130 PetriNetUnfolder]: 10059/20446 cut-off events. [2022-11-20 11:49:42,087 INFO L131 PetriNetUnfolder]: For 39202/48339 co-relation queries the response was YES. [2022-11-20 11:49:42,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57047 conditions, 20446 events. 10059/20446 cut-off events. For 39202/48339 co-relation queries the response was YES. Maximal size of possible extension queue 656. Compared 189840 event pairs, 4601 based on Foata normal form. 631/20043 useless extension candidates. Maximal degree in co-relation 56124. Up to 12862 conditions per place. [2022-11-20 11:49:42,290 INFO L137 encePairwiseOnDemand]: 170/196 looper letters, 200 selfloop transitions, 84 changer transitions 9/372 dead transitions. [2022-11-20 11:49:42,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 372 transitions, 2515 flow [2022-11-20 11:49:42,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-20 11:49:42,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-20 11:49:42,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2154 transitions. [2022-11-20 11:49:42,301 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4995361781076067 [2022-11-20 11:49:42,301 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2154 transitions. [2022-11-20 11:49:42,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2154 transitions. [2022-11-20 11:49:42,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:49:42,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2154 transitions. [2022-11-20 11:49:42,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 97.9090909090909) internal successors, (2154), 22 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:42,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 196.0) internal successors, (4508), 23 states have internal predecessors, (4508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:42,320 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 196.0) internal successors, (4508), 23 states have internal predecessors, (4508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:42,321 INFO L175 Difference]: Start difference. First operand has 238 places, 246 transitions, 1331 flow. Second operand 22 states and 2154 transitions. [2022-11-20 11:49:42,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 372 transitions, 2515 flow [2022-11-20 11:49:42,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 372 transitions, 2432 flow, removed 19 selfloop flow, removed 11 redundant places. [2022-11-20 11:49:42,857 INFO L231 Difference]: Finished difference. Result has 254 places, 269 transitions, 1714 flow [2022-11-20 11:49:42,858 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=1260, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1714, PETRI_PLACES=254, PETRI_TRANSITIONS=269} [2022-11-20 11:49:42,859 INFO L288 CegarLoopForPetriNet]: 165 programPoint places, 89 predicate places. [2022-11-20 11:49:42,859 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 269 transitions, 1714 flow [2022-11-20 11:49:42,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 89.92) internal successors, (2248), 25 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:42,861 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:49:42,861 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:42,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:49:42,862 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:49:42,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:42,863 INFO L85 PathProgramCache]: Analyzing trace with hash -927616048, now seen corresponding path program 2 times [2022-11-20 11:49:42,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:42,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937774361] [2022-11-20 11:49:42,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:42,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:44,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:49:44,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:44,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937774361] [2022-11-20 11:49:44,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937774361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:44,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:44,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-20 11:49:44,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245554503] [2022-11-20 11:49:44,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:44,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 11:49:44,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:44,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 11:49:44,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2022-11-20 11:49:44,695 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 196 [2022-11-20 11:49:44,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 269 transitions, 1714 flow. Second operand has 25 states, 25 states have (on average 89.92) internal successors, (2248), 25 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:44,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:49:44,698 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 196 [2022-11-20 11:49:44,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:49:51,348 INFO L130 PetriNetUnfolder]: 11936/24231 cut-off events. [2022-11-20 11:49:51,348 INFO L131 PetriNetUnfolder]: For 66072/79329 co-relation queries the response was YES. [2022-11-20 11:49:51,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71648 conditions, 24231 events. 11936/24231 cut-off events. For 66072/79329 co-relation queries the response was YES. Maximal size of possible extension queue 792. Compared 231398 event pairs, 4906 based on Foata normal form. 835/23873 useless extension candidates. Maximal degree in co-relation 70847. Up to 12672 conditions per place. [2022-11-20 11:49:51,641 INFO L137 encePairwiseOnDemand]: 170/196 looper letters, 207 selfloop transitions, 108 changer transitions 7/401 dead transitions. [2022-11-20 11:49:51,641 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 401 transitions, 2909 flow [2022-11-20 11:49:51,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 11:49:51,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-11-20 11:49:51,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 2449 transitions. [2022-11-20 11:49:51,647 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49979591836734694 [2022-11-20 11:49:51,648 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 2449 transitions. [2022-11-20 11:49:51,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 2449 transitions. [2022-11-20 11:49:51,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:49:51,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 2449 transitions. [2022-11-20 11:49:51,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 97.96) internal successors, (2449), 25 states have internal predecessors, (2449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:51,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 196.0) internal successors, (5096), 26 states have internal predecessors, (5096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:51,664 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 196.0) internal successors, (5096), 26 states have internal predecessors, (5096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:51,665 INFO L175 Difference]: Start difference. First operand has 254 places, 269 transitions, 1714 flow. Second operand 25 states and 2449 transitions. [2022-11-20 11:49:51,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 401 transitions, 2909 flow [2022-11-20 11:49:52,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 401 transitions, 2818 flow, removed 20 selfloop flow, removed 13 redundant places. [2022-11-20 11:49:52,387 INFO L231 Difference]: Finished difference. Result has 269 places, 281 transitions, 2038 flow [2022-11-20 11:49:52,388 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=1625, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=2038, PETRI_PLACES=269, PETRI_TRANSITIONS=281} [2022-11-20 11:49:52,388 INFO L288 CegarLoopForPetriNet]: 165 programPoint places, 104 predicate places. [2022-11-20 11:49:52,389 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 281 transitions, 2038 flow [2022-11-20 11:49:52,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 89.92) internal successors, (2248), 25 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:52,390 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:49:52,390 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:52,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:49:52,391 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:49:52,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:52,391 INFO L85 PathProgramCache]: Analyzing trace with hash 62229776, now seen corresponding path program 2 times [2022-11-20 11:49:52,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:52,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803204837] [2022-11-20 11:49:52,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:52,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:53,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:49:53,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:53,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803204837] [2022-11-20 11:49:53,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803204837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:53,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:53,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-20 11:49:53,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437231845] [2022-11-20 11:49:53,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:53,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 11:49:53,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:53,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 11:49:53,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2022-11-20 11:49:53,956 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 196 [2022-11-20 11:49:53,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 281 transitions, 2038 flow. Second operand has 25 states, 25 states have (on average 89.92) internal successors, (2248), 25 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:53,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:49:53,960 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 196 [2022-11-20 11:49:53,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:50:02,381 INFO L130 PetriNetUnfolder]: 14993/29736 cut-off events. [2022-11-20 11:50:02,381 INFO L131 PetriNetUnfolder]: For 96508/132451 co-relation queries the response was YES. [2022-11-20 11:50:02,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94380 conditions, 29736 events. 14993/29736 cut-off events. For 96508/132451 co-relation queries the response was YES. Maximal size of possible extension queue 929. Compared 287381 event pairs, 6912 based on Foata normal form. 985/29287 useless extension candidates. Maximal degree in co-relation 93341. Up to 15736 conditions per place. [2022-11-20 11:50:02,723 INFO L137 encePairwiseOnDemand]: 169/196 looper letters, 304 selfloop transitions, 143 changer transitions 15/543 dead transitions. [2022-11-20 11:50:02,723 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 543 transitions, 4814 flow [2022-11-20 11:50:02,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-20 11:50:02,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-20 11:50:02,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 2848 transitions. [2022-11-20 11:50:02,729 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5010555946516537 [2022-11-20 11:50:02,730 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 2848 transitions. [2022-11-20 11:50:02,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 2848 transitions. [2022-11-20 11:50:02,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:50:02,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 2848 transitions. [2022-11-20 11:50:02,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 98.20689655172414) internal successors, (2848), 29 states have internal predecessors, (2848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:02,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 196.0) internal successors, (5880), 30 states have internal predecessors, (5880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:02,748 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 196.0) internal successors, (5880), 30 states have internal predecessors, (5880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:02,748 INFO L175 Difference]: Start difference. First operand has 269 places, 281 transitions, 2038 flow. Second operand 29 states and 2848 transitions. [2022-11-20 11:50:02,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 543 transitions, 4814 flow [2022-11-20 11:50:03,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 543 transitions, 4620 flow, removed 11 selfloop flow, removed 18 redundant places. [2022-11-20 11:50:03,677 INFO L231 Difference]: Finished difference. Result has 290 places, 361 transitions, 3334 flow [2022-11-20 11:50:03,678 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=1924, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=3334, PETRI_PLACES=290, PETRI_TRANSITIONS=361} [2022-11-20 11:50:03,678 INFO L288 CegarLoopForPetriNet]: 165 programPoint places, 125 predicate places. [2022-11-20 11:50:03,679 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 361 transitions, 3334 flow [2022-11-20 11:50:03,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 89.92) internal successors, (2248), 25 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:03,680 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:50:03,680 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:50:03,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:50:03,680 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:50:03,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:03,681 INFO L85 PathProgramCache]: Analyzing trace with hash 719034416, now seen corresponding path program 3 times [2022-11-20 11:50:03,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:50:03,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617386554] [2022-11-20 11:50:03,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:03,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:50:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:05,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:50:05,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:50:05,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617386554] [2022-11-20 11:50:05,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617386554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:05,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:05,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-20 11:50:05,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477516219] [2022-11-20 11:50:05,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:05,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 11:50:05,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:50:05,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 11:50:05,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:50:05,295 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 196 [2022-11-20 11:50:05,297 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 361 transitions, 3334 flow. Second operand has 22 states, 22 states have (on average 91.13636363636364) internal successors, (2005), 22 states have internal predecessors, (2005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:05,297 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:50:05,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 196 [2022-11-20 11:50:05,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:50:13,846 INFO L130 PetriNetUnfolder]: 14537/29588 cut-off events. [2022-11-20 11:50:13,846 INFO L131 PetriNetUnfolder]: For 149662/207429 co-relation queries the response was YES. [2022-11-20 11:50:14,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103002 conditions, 29588 events. 14537/29588 cut-off events. For 149662/207429 co-relation queries the response was YES. Maximal size of possible extension queue 930. Compared 292691 event pairs, 6316 based on Foata normal form. 1422/29451 useless extension candidates. Maximal degree in co-relation 101908. Up to 16967 conditions per place. [2022-11-20 11:50:14,188 INFO L137 encePairwiseOnDemand]: 173/196 looper letters, 320 selfloop transitions, 126 changer transitions 11/541 dead transitions. [2022-11-20 11:50:14,189 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 541 transitions, 5377 flow [2022-11-20 11:50:14,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-20 11:50:14,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-20 11:50:14,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2585 transitions. [2022-11-20 11:50:14,194 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5072605965463108 [2022-11-20 11:50:14,194 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2585 transitions. [2022-11-20 11:50:14,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2585 transitions. [2022-11-20 11:50:14,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:50:14,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2585 transitions. [2022-11-20 11:50:14,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 99.42307692307692) internal successors, (2585), 26 states have internal predecessors, (2585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:14,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 196.0) internal successors, (5292), 27 states have internal predecessors, (5292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:14,209 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 196.0) internal successors, (5292), 27 states have internal predecessors, (5292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:14,210 INFO L175 Difference]: Start difference. First operand has 290 places, 361 transitions, 3334 flow. Second operand 26 states and 2585 transitions. [2022-11-20 11:50:14,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 541 transitions, 5377 flow [2022-11-20 11:50:15,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 541 transitions, 5237 flow, removed 56 selfloop flow, removed 11 redundant places. [2022-11-20 11:50:15,201 INFO L231 Difference]: Finished difference. Result has 312 places, 396 transitions, 4075 flow [2022-11-20 11:50:15,202 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=3236, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=4075, PETRI_PLACES=312, PETRI_TRANSITIONS=396} [2022-11-20 11:50:15,203 INFO L288 CegarLoopForPetriNet]: 165 programPoint places, 147 predicate places. [2022-11-20 11:50:15,203 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 396 transitions, 4075 flow [2022-11-20 11:50:15,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 91.13636363636364) internal successors, (2005), 22 states have internal predecessors, (2005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:15,204 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:50:15,204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:50:15,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:50:15,204 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:50:15,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:15,205 INFO L85 PathProgramCache]: Analyzing trace with hash 663731794, now seen corresponding path program 3 times [2022-11-20 11:50:15,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:50:15,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852267426] [2022-11-20 11:50:15,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:15,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:50:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:16,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:50:16,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:50:16,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852267426] [2022-11-20 11:50:16,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852267426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:16,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:16,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-20 11:50:16,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460981221] [2022-11-20 11:50:16,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:16,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 11:50:16,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:50:16,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 11:50:16,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:50:16,883 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 196 [2022-11-20 11:50:16,886 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 396 transitions, 4075 flow. Second operand has 22 states, 22 states have (on average 91.13636363636364) internal successors, (2005), 22 states have internal predecessors, (2005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:16,886 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:50:16,886 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 196 [2022-11-20 11:50:16,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:50:26,807 INFO L130 PetriNetUnfolder]: 16128/32250 cut-off events. [2022-11-20 11:50:26,807 INFO L131 PetriNetUnfolder]: For 228017/308581 co-relation queries the response was YES. [2022-11-20 11:50:27,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124821 conditions, 32250 events. 16128/32250 cut-off events. For 228017/308581 co-relation queries the response was YES. Maximal size of possible extension queue 997. Compared 318182 event pairs, 7283 based on Foata normal form. 1695/32231 useless extension candidates. Maximal degree in co-relation 124213. Up to 17369 conditions per place. [2022-11-20 11:50:27,326 INFO L137 encePairwiseOnDemand]: 172/196 looper letters, 347 selfloop transitions, 148 changer transitions 6/587 dead transitions. [2022-11-20 11:50:27,326 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 587 transitions, 6193 flow [2022-11-20 11:50:27,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 11:50:27,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 11:50:27,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 2800 transitions. [2022-11-20 11:50:27,332 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5102040816326531 [2022-11-20 11:50:27,332 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 2800 transitions. [2022-11-20 11:50:27,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 2800 transitions. [2022-11-20 11:50:27,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:50:27,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 2800 transitions. [2022-11-20 11:50:27,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 100.0) internal successors, (2800), 28 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:27,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 196.0) internal successors, (5684), 29 states have internal predecessors, (5684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:27,349 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 196.0) internal successors, (5684), 29 states have internal predecessors, (5684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:27,349 INFO L175 Difference]: Start difference. First operand has 312 places, 396 transitions, 4075 flow. Second operand 28 states and 2800 transitions. [2022-11-20 11:50:27,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 587 transitions, 6193 flow [2022-11-20 11:50:29,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 587 transitions, 6032 flow, removed 46 selfloop flow, removed 13 redundant places. [2022-11-20 11:50:29,039 INFO L231 Difference]: Finished difference. Result has 332 places, 409 transitions, 4559 flow [2022-11-20 11:50:29,040 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=3942, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=4559, PETRI_PLACES=332, PETRI_TRANSITIONS=409} [2022-11-20 11:50:29,040 INFO L288 CegarLoopForPetriNet]: 165 programPoint places, 167 predicate places. [2022-11-20 11:50:29,040 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 409 transitions, 4559 flow [2022-11-20 11:50:29,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 91.13636363636364) internal successors, (2005), 22 states have internal predecessors, (2005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:29,041 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:50:29,041 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:50:29,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:50:29,042 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 11:50:29,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:29,042 INFO L85 PathProgramCache]: Analyzing trace with hash -907159846, now seen corresponding path program 4 times [2022-11-20 11:50:29,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:50:29,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655007041] [2022-11-20 11:50:29,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:29,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:50:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:30,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:50:30,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:50:30,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655007041] [2022-11-20 11:50:30,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655007041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:30,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:30,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-20 11:50:30,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348393020] [2022-11-20 11:50:30,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:30,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 11:50:30,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:50:30,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 11:50:30,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:50:30,469 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 196 [2022-11-20 11:50:30,475 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 409 transitions, 4559 flow. Second operand has 22 states, 22 states have (on average 91.13636363636364) internal successors, (2005), 22 states have internal predecessors, (2005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:30,475 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:50:30,475 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 196 [2022-11-20 11:50:30,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand