./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_65b1fa4d-d82e-4eda-aea3-dbb55ab51c56/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b1fa4d-d82e-4eda-aea3-dbb55ab51c56/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b1fa4d-d82e-4eda-aea3-dbb55ab51c56/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b1fa4d-d82e-4eda-aea3-dbb55ab51c56/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b1fa4d-d82e-4eda-aea3-dbb55ab51c56/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b1fa4d-d82e-4eda-aea3-dbb55ab51c56/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:33:09,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:33:09,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:33:09,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:33:09,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:33:09,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:33:09,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:33:09,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:33:09,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:33:09,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:33:09,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:33:09,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:33:09,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:33:09,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:33:09,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:33:09,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:33:09,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:33:09,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:33:09,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:33:09,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:33:09,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:33:09,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:33:09,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:33:09,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:33:09,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:33:09,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:33:09,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:33:09,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:33:09,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:33:09,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:33:09,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:33:09,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:33:09,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:33:09,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:33:09,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:33:09,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:33:09,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:33:09,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:33:09,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:33:09,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:33:09,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:33:09,903 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b1fa4d-d82e-4eda-aea3-dbb55ab51c56/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 19:33:09,942 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:33:09,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:33:09,943 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:33:09,943 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:33:09,944 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:33:09,944 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:33:09,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:33:09,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:33:09,946 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:33:09,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:33:09,947 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:33:09,947 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:33:09,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:33:09,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:33:09,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:33:09,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:33:09,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:33:09,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:33:09,949 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 19:33:09,949 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:33:09,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:33:09,949 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:33:09,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:33:09,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:33:09,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:33:09,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:33:09,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:33:09,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:33:09,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:33:09,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:33:09,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:33:09,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:33:09,953 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:33:09,953 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:33:09,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:33:09,954 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_65b1fa4d-d82e-4eda-aea3-dbb55ab51c56/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b1fa4d-d82e-4eda-aea3-dbb55ab51c56/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 [2022-11-18 19:33:10,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:33:10,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:33:10,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:33:10,263 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:33:10,263 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:33:10,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b1fa4d-d82e-4eda-aea3-dbb55ab51c56/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-11-18 19:33:10,331 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b1fa4d-d82e-4eda-aea3-dbb55ab51c56/bin/uautomizer-TMbwUNV5ro/data/3ab438a04/6b75e13d678b447890121217f35e5aa1/FLAG4b34a5525 [2022-11-18 19:33:10,987 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:33:10,988 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b1fa4d-d82e-4eda-aea3-dbb55ab51c56/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2022-11-18 19:33:11,017 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b1fa4d-d82e-4eda-aea3-dbb55ab51c56/bin/uautomizer-TMbwUNV5ro/data/3ab438a04/6b75e13d678b447890121217f35e5aa1/FLAG4b34a5525 [2022-11-18 19:33:11,207 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b1fa4d-d82e-4eda-aea3-dbb55ab51c56/bin/uautomizer-TMbwUNV5ro/data/3ab438a04/6b75e13d678b447890121217f35e5aa1 [2022-11-18 19:33:11,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:33:11,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:33:11,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:33:11,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:33:11,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:33:11,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:33:11" (1/1) ... [2022-11-18 19:33:11,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cf07588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:11, skipping insertion in model container [2022-11-18 19:33:11,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:33:11" (1/1) ... [2022-11-18 19:33:11,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:33:11,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:33:11,527 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 19:33:12,024 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b1fa4d-d82e-4eda-aea3-dbb55ab51c56/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-11-18 19:33:12,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:33:12,067 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:33:12,079 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 19:33:12,143 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b1fa4d-d82e-4eda-aea3-dbb55ab51c56/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[75002,75015] [2022-11-18 19:33:12,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:33:12,296 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:33:12,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:12 WrapperNode [2022-11-18 19:33:12,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:33:12,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:33:12,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:33:12,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:33:12,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:12" (1/1) ... [2022-11-18 19:33:12,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:12" (1/1) ... [2022-11-18 19:33:12,411 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-11-18 19:33:12,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:33:12,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:33:12,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:33:12,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:33:12,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:12" (1/1) ... [2022-11-18 19:33:12,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:12" (1/1) ... [2022-11-18 19:33:12,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:12" (1/1) ... [2022-11-18 19:33:12,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:12" (1/1) ... [2022-11-18 19:33:12,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:12" (1/1) ... [2022-11-18 19:33:12,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:12" (1/1) ... [2022-11-18 19:33:12,476 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:12" (1/1) ... [2022-11-18 19:33:12,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:12" (1/1) ... [2022-11-18 19:33:12,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:33:12,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:33:12,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:33:12,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:33:12,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:12" (1/1) ... [2022-11-18 19:33:12,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:33:12,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b1fa4d-d82e-4eda-aea3-dbb55ab51c56/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:33:12,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b1fa4d-d82e-4eda-aea3-dbb55ab51c56/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:33:12,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b1fa4d-d82e-4eda-aea3-dbb55ab51c56/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:33:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 19:33:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:33:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 19:33:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:33:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 19:33:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:33:12,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 19:33:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:33:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:33:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-18 19:33:12,598 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-18 19:33:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:33:12,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:33:12,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:33:12,601 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:33:13,036 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:33:13,039 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:33:13,357 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:33:13,400 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:33:13,401 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:33:13,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:33:13 BoogieIcfgContainer [2022-11-18 19:33:13,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:33:13,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:33:13,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:33:13,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:33:13,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:33:11" (1/3) ... [2022-11-18 19:33:13,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe0736a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:33:13, skipping insertion in model container [2022-11-18 19:33:13,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:12" (2/3) ... [2022-11-18 19:33:13,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe0736a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:33:13, skipping insertion in model container [2022-11-18 19:33:13,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:33:13" (3/3) ... [2022-11-18 19:33:13,422 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2022-11-18 19:33:13,431 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:33:13,442 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:33:13,442 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 19:33:13,442 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:33:13,502 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 19:33:13,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 173 transitions, 362 flow [2022-11-18 19:33:13,623 INFO L130 PetriNetUnfolder]: 8/216 cut-off events. [2022-11-18 19:33:13,623 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 19:33:13,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 216 events. 8/216 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 349 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2022-11-18 19:33:13,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 173 transitions, 362 flow [2022-11-18 19:33:13,634 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 139 transitions, 287 flow [2022-11-18 19:33:13,645 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:33:13,651 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;@39abc0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:33:13,652 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 19:33:13,669 INFO L130 PetriNetUnfolder]: 0/69 cut-off events. [2022-11-18 19:33:13,669 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:33:13,670 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:33:13,670 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:13,671 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 19:33:13,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:13,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1131939205, now seen corresponding path program 1 times [2022-11-18 19:33:13,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:13,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674004462] [2022-11-18 19:33:13,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:13,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:16,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:33:16,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:16,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674004462] [2022-11-18 19:33:16,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674004462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:16,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:16,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-18 19:33:16,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075134922] [2022-11-18 19:33:16,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:16,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 19:33:16,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:16,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 19:33:16,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-18 19:33:16,192 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 173 [2022-11-18 19:33:16,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 139 transitions, 287 flow. Second operand has 15 states, 15 states have (on average 114.66666666666667) internal successors, (1720), 15 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:16,202 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:33:16,202 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 173 [2022-11-18 19:33:16,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:33:18,860 INFO L130 PetriNetUnfolder]: 1577/5303 cut-off events. [2022-11-18 19:33:18,861 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-11-18 19:33:18,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7960 conditions, 5303 events. 1577/5303 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 48623 event pairs, 1104 based on Foata normal form. 160/4738 useless extension candidates. Maximal degree in co-relation 7751. Up to 1945 conditions per place. [2022-11-18 19:33:18,960 INFO L137 encePairwiseOnDemand]: 153/173 looper letters, 82 selfloop transitions, 23 changer transitions 2/194 dead transitions. [2022-11-18 19:33:18,960 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 194 transitions, 617 flow [2022-11-18 19:33:18,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 19:33:18,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-18 19:33:18,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2151 transitions. [2022-11-18 19:33:18,985 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6907514450867052 [2022-11-18 19:33:18,986 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2151 transitions. [2022-11-18 19:33:18,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2151 transitions. [2022-11-18 19:33:18,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:33:18,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2151 transitions. [2022-11-18 19:33:19,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 119.5) internal successors, (2151), 18 states have internal predecessors, (2151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:19,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 173.0) internal successors, (3287), 19 states have internal predecessors, (3287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:19,022 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 173.0) internal successors, (3287), 19 states have internal predecessors, (3287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:19,024 INFO L175 Difference]: Start difference. First operand has 144 places, 139 transitions, 287 flow. Second operand 18 states and 2151 transitions. [2022-11-18 19:33:19,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 194 transitions, 617 flow [2022-11-18 19:33:19,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 194 transitions, 609 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 19:33:19,040 INFO L231 Difference]: Finished difference. Result has 165 places, 150 transitions, 403 flow [2022-11-18 19:33:19,042 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=403, PETRI_PLACES=165, PETRI_TRANSITIONS=150} [2022-11-18 19:33:19,046 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 21 predicate places. [2022-11-18 19:33:19,047 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 150 transitions, 403 flow [2022-11-18 19:33:19,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 114.66666666666667) internal successors, (1720), 15 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:19,049 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:33:19,049 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:19,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:33:19,050 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 19:33:19,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:19,052 INFO L85 PathProgramCache]: Analyzing trace with hash -132118850, now seen corresponding path program 1 times [2022-11-18 19:33:19,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:19,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553184367] [2022-11-18 19:33:19,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:19,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:20,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:33:20,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:20,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553184367] [2022-11-18 19:33:20,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553184367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:20,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:20,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-18 19:33:20,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893504399] [2022-11-18 19:33:20,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:20,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 19:33:20,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:20,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 19:33:20,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:33:20,417 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-18 19:33:20,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 150 transitions, 403 flow. Second operand has 19 states, 19 states have (on average 105.6842105263158) internal successors, (2008), 19 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:20,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:33:20,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-18 19:33:20,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:33:23,268 INFO L130 PetriNetUnfolder]: 2139/6443 cut-off events. [2022-11-18 19:33:23,269 INFO L131 PetriNetUnfolder]: For 1311/1331 co-relation queries the response was YES. [2022-11-18 19:33:23,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11241 conditions, 6443 events. 2139/6443 cut-off events. For 1311/1331 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 59201 event pairs, 1327 based on Foata normal form. 83/5760 useless extension candidates. Maximal degree in co-relation 10514. Up to 2231 conditions per place. [2022-11-18 19:33:23,325 INFO L137 encePairwiseOnDemand]: 150/173 looper letters, 108 selfloop transitions, 44 changer transitions 2/233 dead transitions. [2022-11-18 19:33:23,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 233 transitions, 948 flow [2022-11-18 19:33:23,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 19:33:23,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 19:33:23,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2336 transitions. [2022-11-18 19:33:23,331 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6429947701624003 [2022-11-18 19:33:23,332 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2336 transitions. [2022-11-18 19:33:23,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2336 transitions. [2022-11-18 19:33:23,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:33:23,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2336 transitions. [2022-11-18 19:33:23,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 111.23809523809524) internal successors, (2336), 21 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:23,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:23,347 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:23,347 INFO L175 Difference]: Start difference. First operand has 165 places, 150 transitions, 403 flow. Second operand 21 states and 2336 transitions. [2022-11-18 19:33:23,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 233 transitions, 948 flow [2022-11-18 19:33:23,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 233 transitions, 937 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 19:33:23,363 INFO L231 Difference]: Finished difference. Result has 189 places, 179 transitions, 657 flow [2022-11-18 19:33:23,363 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=657, PETRI_PLACES=189, PETRI_TRANSITIONS=179} [2022-11-18 19:33:23,364 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 45 predicate places. [2022-11-18 19:33:23,364 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 179 transitions, 657 flow [2022-11-18 19:33:23,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 105.6842105263158) internal successors, (2008), 19 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:23,366 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:33:23,366 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:23,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:33:23,366 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 19:33:23,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:23,367 INFO L85 PathProgramCache]: Analyzing trace with hash 917909606, now seen corresponding path program 1 times [2022-11-18 19:33:23,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:23,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572553165] [2022-11-18 19:33:23,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:23,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:24,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:33:24,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:24,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572553165] [2022-11-18 19:33:24,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572553165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:24,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:24,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-18 19:33:24,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362922690] [2022-11-18 19:33:24,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:24,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 19:33:24,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:24,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 19:33:24,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:33:24,663 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-18 19:33:24,668 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 179 transitions, 657 flow. Second operand has 19 states, 19 states have (on average 105.73684210526316) internal successors, (2009), 19 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:24,668 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:33:24,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-18 19:33:24,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:33:28,624 INFO L130 PetriNetUnfolder]: 3596/12142 cut-off events. [2022-11-18 19:33:28,625 INFO L131 PetriNetUnfolder]: For 9709/10908 co-relation queries the response was YES. [2022-11-18 19:33:28,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23926 conditions, 12142 events. 3596/12142 cut-off events. For 9709/10908 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 129469 event pairs, 1864 based on Foata normal form. 4/11061 useless extension candidates. Maximal degree in co-relation 22441. Up to 5102 conditions per place. [2022-11-18 19:33:28,750 INFO L137 encePairwiseOnDemand]: 150/173 looper letters, 110 selfloop transitions, 64 changer transitions 5/266 dead transitions. [2022-11-18 19:33:28,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 266 transitions, 1404 flow [2022-11-18 19:33:28,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 19:33:28,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 19:33:28,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2324 transitions. [2022-11-18 19:33:28,759 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6396917148362236 [2022-11-18 19:33:28,760 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2324 transitions. [2022-11-18 19:33:28,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2324 transitions. [2022-11-18 19:33:28,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:33:28,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2324 transitions. [2022-11-18 19:33:28,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 110.66666666666667) internal successors, (2324), 21 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:28,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:28,779 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:28,780 INFO L175 Difference]: Start difference. First operand has 189 places, 179 transitions, 657 flow. Second operand 21 states and 2324 transitions. [2022-11-18 19:33:28,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 266 transitions, 1404 flow [2022-11-18 19:33:28,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 266 transitions, 1342 flow, removed 23 selfloop flow, removed 9 redundant places. [2022-11-18 19:33:28,858 INFO L231 Difference]: Finished difference. Result has 209 places, 216 transitions, 1068 flow [2022-11-18 19:33:28,859 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=619, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1068, PETRI_PLACES=209, PETRI_TRANSITIONS=216} [2022-11-18 19:33:28,862 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 65 predicate places. [2022-11-18 19:33:28,862 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 216 transitions, 1068 flow [2022-11-18 19:33:28,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 105.73684210526316) internal successors, (2009), 19 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:28,863 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:33:28,864 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:28,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:33:28,864 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 19:33:28,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:28,866 INFO L85 PathProgramCache]: Analyzing trace with hash 143972341, now seen corresponding path program 1 times [2022-11-18 19:33:28,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:28,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922385147] [2022-11-18 19:33:28,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:28,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:28,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:30,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:33:30,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:30,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922385147] [2022-11-18 19:33:30,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922385147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:30,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:30,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 19:33:30,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661949775] [2022-11-18 19:33:30,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:30,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 19:33:30,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:30,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 19:33:30,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:33:30,453 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-18 19:33:30,455 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 216 transitions, 1068 flow. Second operand has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:30,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:33:30,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-18 19:33:30,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:33:34,258 INFO L130 PetriNetUnfolder]: 3707/13201 cut-off events. [2022-11-18 19:33:34,258 INFO L131 PetriNetUnfolder]: For 10359/11283 co-relation queries the response was YES. [2022-11-18 19:33:34,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27294 conditions, 13201 events. 3707/13201 cut-off events. For 10359/11283 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 146501 event pairs, 2103 based on Foata normal form. 128/12331 useless extension candidates. Maximal degree in co-relation 25905. Up to 4096 conditions per place. [2022-11-18 19:33:34,359 INFO L137 encePairwiseOnDemand]: 152/173 looper letters, 145 selfloop transitions, 55 changer transitions 2/285 dead transitions. [2022-11-18 19:33:34,359 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 285 transitions, 1797 flow [2022-11-18 19:33:34,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 19:33:34,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 19:33:34,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2225 transitions. [2022-11-18 19:33:34,365 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6430635838150289 [2022-11-18 19:33:34,366 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2225 transitions. [2022-11-18 19:33:34,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2225 transitions. [2022-11-18 19:33:34,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:33:34,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2225 transitions. [2022-11-18 19:33:34,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 111.25) internal successors, (2225), 20 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:34,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 173.0) internal successors, (3633), 21 states have internal predecessors, (3633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:34,380 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 173.0) internal successors, (3633), 21 states have internal predecessors, (3633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:34,380 INFO L175 Difference]: Start difference. First operand has 209 places, 216 transitions, 1068 flow. Second operand 20 states and 2225 transitions. [2022-11-18 19:33:34,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 285 transitions, 1797 flow [2022-11-18 19:33:34,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 285 transitions, 1752 flow, removed 15 selfloop flow, removed 8 redundant places. [2022-11-18 19:33:34,441 INFO L231 Difference]: Finished difference. Result has 228 places, 236 transitions, 1354 flow [2022-11-18 19:33:34,442 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=1025, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1354, PETRI_PLACES=228, PETRI_TRANSITIONS=236} [2022-11-18 19:33:34,443 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 84 predicate places. [2022-11-18 19:33:34,443 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 236 transitions, 1354 flow [2022-11-18 19:33:34,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:34,444 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:33:34,445 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:34,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:33:34,445 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 19:33:34,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:34,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1389050335, now seen corresponding path program 1 times [2022-11-18 19:33:34,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:34,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645294097] [2022-11-18 19:33:34,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:34,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:35,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:33:35,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:35,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645294097] [2022-11-18 19:33:35,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645294097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:35,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:35,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 19:33:35,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985084521] [2022-11-18 19:33:35,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:35,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 19:33:35,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:35,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 19:33:35,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:33:35,669 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-18 19:33:35,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 236 transitions, 1354 flow. Second operand has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:35,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:33:35,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-18 19:33:35,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:33:39,745 INFO L130 PetriNetUnfolder]: 4530/15851 cut-off events. [2022-11-18 19:33:39,746 INFO L131 PetriNetUnfolder]: For 22560/24057 co-relation queries the response was YES. [2022-11-18 19:33:39,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36062 conditions, 15851 events. 4530/15851 cut-off events. For 22560/24057 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 179985 event pairs, 2181 based on Foata normal form. 130/14806 useless extension candidates. Maximal degree in co-relation 33943. Up to 5969 conditions per place. [2022-11-18 19:33:39,875 INFO L137 encePairwiseOnDemand]: 150/173 looper letters, 128 selfloop transitions, 98 changer transitions 5/322 dead transitions. [2022-11-18 19:33:39,876 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 322 transitions, 2418 flow [2022-11-18 19:33:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 19:33:39,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 19:33:39,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2326 transitions. [2022-11-18 19:33:39,882 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.640242224057253 [2022-11-18 19:33:39,882 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2326 transitions. [2022-11-18 19:33:39,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2326 transitions. [2022-11-18 19:33:39,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:33:39,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2326 transitions. [2022-11-18 19:33:39,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 110.76190476190476) internal successors, (2326), 21 states have internal predecessors, (2326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:39,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:39,896 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:39,897 INFO L175 Difference]: Start difference. First operand has 228 places, 236 transitions, 1354 flow. Second operand 21 states and 2326 transitions. [2022-11-18 19:33:39,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 322 transitions, 2418 flow [2022-11-18 19:33:40,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 322 transitions, 2353 flow, removed 23 selfloop flow, removed 10 redundant places. [2022-11-18 19:33:40,008 INFO L231 Difference]: Finished difference. Result has 246 places, 276 transitions, 2015 flow [2022-11-18 19:33:40,009 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=1313, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2015, PETRI_PLACES=246, PETRI_TRANSITIONS=276} [2022-11-18 19:33:40,010 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 102 predicate places. [2022-11-18 19:33:40,010 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 276 transitions, 2015 flow [2022-11-18 19:33:40,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:40,011 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:33:40,012 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:40,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:33:40,012 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 19:33:40,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:40,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1253474045, now seen corresponding path program 2 times [2022-11-18 19:33:40,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:40,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512036503] [2022-11-18 19:33:40,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:40,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:41,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:33:41,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:41,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512036503] [2022-11-18 19:33:41,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512036503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:41,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:41,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 19:33:41,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737605860] [2022-11-18 19:33:41,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:41,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 19:33:41,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:41,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 19:33:41,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:33:41,475 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-18 19:33:41,478 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 276 transitions, 2015 flow. Second operand has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:41,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:33:41,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-18 19:33:41,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:33:46,042 INFO L130 PetriNetUnfolder]: 4926/17512 cut-off events. [2022-11-18 19:33:46,045 INFO L131 PetriNetUnfolder]: For 31892/33200 co-relation queries the response was YES. [2022-11-18 19:33:46,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42359 conditions, 17512 events. 4926/17512 cut-off events. For 31892/33200 co-relation queries the response was YES. Maximal size of possible extension queue 505. Compared 203493 event pairs, 2483 based on Foata normal form. 130/16374 useless extension candidates. Maximal degree in co-relation 39619. Up to 5987 conditions per place. [2022-11-18 19:33:46,201 INFO L137 encePairwiseOnDemand]: 150/173 looper letters, 132 selfloop transitions, 118 changer transitions 5/346 dead transitions. [2022-11-18 19:33:46,201 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 346 transitions, 3080 flow [2022-11-18 19:33:46,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 19:33:46,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 19:33:46,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2325 transitions. [2022-11-18 19:33:46,207 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6399669694467383 [2022-11-18 19:33:46,208 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2325 transitions. [2022-11-18 19:33:46,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2325 transitions. [2022-11-18 19:33:46,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:33:46,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2325 transitions. [2022-11-18 19:33:46,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 110.71428571428571) internal successors, (2325), 21 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:46,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:46,241 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:46,242 INFO L175 Difference]: Start difference. First operand has 246 places, 276 transitions, 2015 flow. Second operand 21 states and 2325 transitions. [2022-11-18 19:33:46,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 346 transitions, 3080 flow [2022-11-18 19:33:46,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 346 transitions, 2916 flow, removed 29 selfloop flow, removed 11 redundant places. [2022-11-18 19:33:46,362 INFO L231 Difference]: Finished difference. Result has 260 places, 301 transitions, 2522 flow [2022-11-18 19:33:46,363 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=1886, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2522, PETRI_PLACES=260, PETRI_TRANSITIONS=301} [2022-11-18 19:33:46,366 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 116 predicate places. [2022-11-18 19:33:46,366 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 301 transitions, 2522 flow [2022-11-18 19:33:46,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:46,367 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:33:46,367 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:46,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:33:46,368 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 19:33:46,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:46,368 INFO L85 PathProgramCache]: Analyzing trace with hash 751850441, now seen corresponding path program 3 times [2022-11-18 19:33:46,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:46,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163518920] [2022-11-18 19:33:46,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:46,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:47,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:33:47,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:47,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163518920] [2022-11-18 19:33:47,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163518920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:47,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:47,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 19:33:47,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819718446] [2022-11-18 19:33:47,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:47,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 19:33:47,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:47,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 19:33:47,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:33:47,910 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-18 19:33:47,912 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 301 transitions, 2522 flow. Second operand has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:47,912 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:33:47,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-18 19:33:47,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:33:52,449 INFO L130 PetriNetUnfolder]: 5292/18874 cut-off events. [2022-11-18 19:33:52,449 INFO L131 PetriNetUnfolder]: For 45535/47279 co-relation queries the response was YES. [2022-11-18 19:33:52,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47792 conditions, 18874 events. 5292/18874 cut-off events. For 45535/47279 co-relation queries the response was YES. Maximal size of possible extension queue 564. Compared 223117 event pairs, 2883 based on Foata normal form. 130/17617 useless extension candidates. Maximal degree in co-relation 44662. Up to 5947 conditions per place. [2022-11-18 19:33:52,607 INFO L137 encePairwiseOnDemand]: 152/173 looper letters, 158 selfloop transitions, 104 changer transitions 5/358 dead transitions. [2022-11-18 19:33:52,608 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 358 transitions, 3508 flow [2022-11-18 19:33:52,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 19:33:52,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 19:33:52,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2216 transitions. [2022-11-18 19:33:52,614 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6404624277456648 [2022-11-18 19:33:52,615 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2216 transitions. [2022-11-18 19:33:52,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2216 transitions. [2022-11-18 19:33:52,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:33:52,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2216 transitions. [2022-11-18 19:33:52,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 110.8) internal successors, (2216), 20 states have internal predecessors, (2216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:52,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 173.0) internal successors, (3633), 21 states have internal predecessors, (3633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:52,628 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 173.0) internal successors, (3633), 21 states have internal predecessors, (3633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:52,628 INFO L175 Difference]: Start difference. First operand has 260 places, 301 transitions, 2522 flow. Second operand 20 states and 2216 transitions. [2022-11-18 19:33:52,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 358 transitions, 3508 flow [2022-11-18 19:33:52,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 358 transitions, 3406 flow, removed 26 selfloop flow, removed 13 redundant places. [2022-11-18 19:33:52,787 INFO L231 Difference]: Finished difference. Result has 270 places, 314 transitions, 2920 flow [2022-11-18 19:33:52,788 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=2430, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2920, PETRI_PLACES=270, PETRI_TRANSITIONS=314} [2022-11-18 19:33:52,789 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 126 predicate places. [2022-11-18 19:33:52,790 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 314 transitions, 2920 flow [2022-11-18 19:33:52,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 105.7) internal successors, (2114), 20 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:52,791 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:33:52,791 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:52,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:33:52,791 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 19:33:52,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:52,792 INFO L85 PathProgramCache]: Analyzing trace with hash 168091100, now seen corresponding path program 1 times [2022-11-18 19:33:52,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:52,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150356781] [2022-11-18 19:33:52,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:52,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:52,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:53,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:33:53,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:53,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150356781] [2022-11-18 19:33:53,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150356781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:53,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:53,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:33:53,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448736608] [2022-11-18 19:33:53,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:53,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:33:53,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:53,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:33:53,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:33:53,392 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 173 [2022-11-18 19:33:53,393 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 314 transitions, 2920 flow. Second operand has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:53,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:33:53,394 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 173 [2022-11-18 19:33:53,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:33:57,990 INFO L130 PetriNetUnfolder]: 5188/23093 cut-off events. [2022-11-18 19:33:57,991 INFO L131 PetriNetUnfolder]: For 63458/65816 co-relation queries the response was YES. [2022-11-18 19:33:58,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55859 conditions, 23093 events. 5188/23093 cut-off events. For 63458/65816 co-relation queries the response was YES. Maximal size of possible extension queue 851. Compared 306832 event pairs, 1629 based on Foata normal form. 185/21651 useless extension candidates. Maximal degree in co-relation 53496. Up to 4820 conditions per place. [2022-11-18 19:33:58,163 INFO L137 encePairwiseOnDemand]: 157/173 looper letters, 326 selfloop transitions, 48 changer transitions 2/485 dead transitions. [2022-11-18 19:33:58,164 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 485 transitions, 5253 flow [2022-11-18 19:33:58,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:33:58,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 19:33:58,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1460 transitions. [2022-11-18 19:33:58,167 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.767209668943773 [2022-11-18 19:33:58,167 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1460 transitions. [2022-11-18 19:33:58,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1460 transitions. [2022-11-18 19:33:58,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:33:58,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1460 transitions. [2022-11-18 19:33:58,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 132.72727272727272) internal successors, (1460), 11 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:58,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 173.0) internal successors, (2076), 12 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:58,174 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 173.0) internal successors, (2076), 12 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:58,174 INFO L175 Difference]: Start difference. First operand has 270 places, 314 transitions, 2920 flow. Second operand 11 states and 1460 transitions. [2022-11-18 19:33:58,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 485 transitions, 5253 flow [2022-11-18 19:33:58,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 485 transitions, 4955 flow, removed 118 selfloop flow, removed 13 redundant places. [2022-11-18 19:33:58,435 INFO L231 Difference]: Finished difference. Result has 271 places, 334 transitions, 3147 flow [2022-11-18 19:33:58,436 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=2802, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3147, PETRI_PLACES=271, PETRI_TRANSITIONS=334} [2022-11-18 19:33:58,436 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 127 predicate places. [2022-11-18 19:33:58,437 INFO L495 AbstractCegarLoop]: Abstraction has has 271 places, 334 transitions, 3147 flow [2022-11-18 19:33:58,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:58,437 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:33:58,437 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:58,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:33:58,438 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 19:33:58,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:58,438 INFO L85 PathProgramCache]: Analyzing trace with hash 575052408, now seen corresponding path program 2 times [2022-11-18 19:33:58,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:58,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597552646] [2022-11-18 19:33:58,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:58,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:59,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:33:59,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:59,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597552646] [2022-11-18 19:33:59,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597552646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:59,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:59,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:33:59,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733576594] [2022-11-18 19:33:59,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:59,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:33:59,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:59,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:33:59,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:33:59,140 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 173 [2022-11-18 19:33:59,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 334 transitions, 3147 flow. Second operand has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:33:59,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:33:59,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 173 [2022-11-18 19:33:59,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:34:05,529 INFO L130 PetriNetUnfolder]: 6894/30740 cut-off events. [2022-11-18 19:34:05,529 INFO L131 PetriNetUnfolder]: For 87350/93515 co-relation queries the response was YES. [2022-11-18 19:34:05,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79892 conditions, 30740 events. 6894/30740 cut-off events. For 87350/93515 co-relation queries the response was YES. Maximal size of possible extension queue 1256. Compared 430901 event pairs, 1992 based on Foata normal form. 528/29097 useless extension candidates. Maximal degree in co-relation 77329. Up to 6671 conditions per place. [2022-11-18 19:34:05,762 INFO L137 encePairwiseOnDemand]: 156/173 looper letters, 313 selfloop transitions, 99 changer transitions 4/525 dead transitions. [2022-11-18 19:34:05,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 525 transitions, 5708 flow [2022-11-18 19:34:05,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:34:05,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-18 19:34:05,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1841 transitions. [2022-11-18 19:34:05,766 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7601156069364162 [2022-11-18 19:34:05,766 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1841 transitions. [2022-11-18 19:34:05,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1841 transitions. [2022-11-18 19:34:05,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:05,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1841 transitions. [2022-11-18 19:34:05,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 131.5) internal successors, (1841), 14 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:05,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 173.0) internal successors, (2595), 15 states have internal predecessors, (2595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:05,775 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 173.0) internal successors, (2595), 15 states have internal predecessors, (2595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:05,775 INFO L175 Difference]: Start difference. First operand has 271 places, 334 transitions, 3147 flow. Second operand 14 states and 1841 transitions. [2022-11-18 19:34:05,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 525 transitions, 5708 flow [2022-11-18 19:34:06,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 525 transitions, 5515 flow, removed 80 selfloop flow, removed 6 redundant places. [2022-11-18 19:34:06,057 INFO L231 Difference]: Finished difference. Result has 286 places, 389 transitions, 4004 flow [2022-11-18 19:34:06,058 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=3081, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4004, PETRI_PLACES=286, PETRI_TRANSITIONS=389} [2022-11-18 19:34:06,059 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 142 predicate places. [2022-11-18 19:34:06,059 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 389 transitions, 4004 flow [2022-11-18 19:34:06,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:06,060 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:34:06,060 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:34:06,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:34:06,060 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 19:34:06,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:06,061 INFO L85 PathProgramCache]: Analyzing trace with hash -228828489, now seen corresponding path program 1 times [2022-11-18 19:34:06,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:06,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431949181] [2022-11-18 19:34:06,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:06,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:06,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:06,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:06,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431949181] [2022-11-18 19:34:06,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431949181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:06,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:06,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:34:06,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916890202] [2022-11-18 19:34:06,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:06,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:34:06,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:06,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:34:06,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:34:06,646 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 173 [2022-11-18 19:34:06,647 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 389 transitions, 4004 flow. Second operand has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:06,647 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:34:06,647 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 173 [2022-11-18 19:34:06,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:34:16,248 INFO L130 PetriNetUnfolder]: 9126/40867 cut-off events. [2022-11-18 19:34:16,248 INFO L131 PetriNetUnfolder]: For 189960/211579 co-relation queries the response was YES. [2022-11-18 19:34:16,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119285 conditions, 40867 events. 9126/40867 cut-off events. For 189960/211579 co-relation queries the response was YES. Maximal size of possible extension queue 1735. Compared 603488 event pairs, 2664 based on Foata normal form. 1507/39421 useless extension candidates. Maximal degree in co-relation 116505. Up to 9822 conditions per place. [2022-11-18 19:34:16,607 INFO L137 encePairwiseOnDemand]: 156/173 looper letters, 304 selfloop transitions, 157 changer transitions 4/574 dead transitions. [2022-11-18 19:34:16,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 574 transitions, 6860 flow [2022-11-18 19:34:16,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:34:16,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-18 19:34:16,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1962 transitions. [2022-11-18 19:34:16,610 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7560693641618497 [2022-11-18 19:34:16,610 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1962 transitions. [2022-11-18 19:34:16,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1962 transitions. [2022-11-18 19:34:16,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:16,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1962 transitions. [2022-11-18 19:34:16,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 130.8) internal successors, (1962), 15 states have internal predecessors, (1962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:16,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 173.0) internal successors, (2768), 16 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:16,620 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 173.0) internal successors, (2768), 16 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:16,620 INFO L175 Difference]: Start difference. First operand has 286 places, 389 transitions, 4004 flow. Second operand 15 states and 1962 transitions. [2022-11-18 19:34:16,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 574 transitions, 6860 flow [2022-11-18 19:34:17,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 574 transitions, 6711 flow, removed 62 selfloop flow, removed 5 redundant places. [2022-11-18 19:34:17,345 INFO L231 Difference]: Finished difference. Result has 305 places, 469 transitions, 5637 flow [2022-11-18 19:34:17,347 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=3908, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=5637, PETRI_PLACES=305, PETRI_TRANSITIONS=469} [2022-11-18 19:34:17,349 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 161 predicate places. [2022-11-18 19:34:17,349 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 469 transitions, 5637 flow [2022-11-18 19:34:17,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:17,350 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:34:17,350 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:34:17,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:34:17,350 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 19:34:17,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:17,351 INFO L85 PathProgramCache]: Analyzing trace with hash 313380281, now seen corresponding path program 2 times [2022-11-18 19:34:17,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:17,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100554632] [2022-11-18 19:34:17,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:17,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:18,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:18,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:18,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100554632] [2022-11-18 19:34:18,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100554632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:18,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:18,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:34:18,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116865789] [2022-11-18 19:34:18,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:18,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:34:18,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:18,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:34:18,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:34:18,171 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 173 [2022-11-18 19:34:18,172 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 469 transitions, 5637 flow. Second operand has 10 states, 10 states have (on average 121.5) internal successors, (1215), 10 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:18,172 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:34:18,172 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 173 [2022-11-18 19:34:18,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand