./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_4-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_8fc9030e-a0d2-4dd2-a8d6-f836d38839b6/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fc9030e-a0d2-4dd2-a8d6-f836d38839b6/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_8fc9030e-a0d2-4dd2-a8d6-f836d38839b6/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fc9030e-a0d2-4dd2-a8d6-f836d38839b6/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fc9030e-a0d2-4dd2-a8d6-f836d38839b6/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_8fc9030e-a0d2-4dd2-a8d6-f836d38839b6/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 da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:52:53,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:52:53,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:52:53,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:52:53,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:52:53,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:52:53,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:52:53,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:52:53,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:52:53,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:52:53,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:52:53,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:52:53,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:52:53,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:52:53,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:52:53,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:52:53,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:52:53,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:52:53,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:52:53,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:52:53,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:52:53,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:52:53,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:52:53,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:52:53,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:52:53,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:52:53,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:52:53,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:52:53,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:52:53,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:52:53,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:52:53,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:52:53,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:52:53,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:52:53,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:52:53,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:52:53,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:52:53,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:52:53,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:52:53,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:52:53,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:52:53,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fc9030e-a0d2-4dd2-a8d6-f836d38839b6/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:52:53,788 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:52:53,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:52:53,789 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:52:53,789 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:52:53,790 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:52:53,790 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:52:53,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:52:53,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:52:53,797 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:52:53,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:52:53,797 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:52:53,797 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:52:53,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:52:53,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:52:53,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:52:53,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:52:53,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:52:53,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:52:53,799 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:52:53,799 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:52:53,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:52:53,800 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:52:53,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:52:53,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:52:53,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:52:53,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:52:53,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:52:53,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:52:53,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:52:53,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:52:53,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:52:53,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:52:53,802 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:52:53,802 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:52:53,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:52:53,803 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_8fc9030e-a0d2-4dd2-a8d6-f836d38839b6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fc9030e-a0d2-4dd2-a8d6-f836d38839b6/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da [2022-11-18 20:52:54,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:52:54,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:52:54,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:52:54,214 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:52:54,216 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:52:54,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fc9030e-a0d2-4dd2-a8d6-f836d38839b6/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-11-18 20:52:54,320 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fc9030e-a0d2-4dd2-a8d6-f836d38839b6/bin/uautomizer-TMbwUNV5ro/data/f9a9856b9/4d3652840f1e4aca8588f8b2cc866c0f/FLAGbfce6d92f [2022-11-18 20:52:55,145 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:52:55,146 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fc9030e-a0d2-4dd2-a8d6-f836d38839b6/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-11-18 20:52:55,192 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fc9030e-a0d2-4dd2-a8d6-f836d38839b6/bin/uautomizer-TMbwUNV5ro/data/f9a9856b9/4d3652840f1e4aca8588f8b2cc866c0f/FLAGbfce6d92f [2022-11-18 20:52:55,266 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fc9030e-a0d2-4dd2-a8d6-f836d38839b6/bin/uautomizer-TMbwUNV5ro/data/f9a9856b9/4d3652840f1e4aca8588f8b2cc866c0f [2022-11-18 20:52:55,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:52:55,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:52:55,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:52:55,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:52:55,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:52:55,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:52:55" (1/1) ... [2022-11-18 20:52:55,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dcc23da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:55, skipping insertion in model container [2022-11-18 20:52:55,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:52:55" (1/1) ... [2022-11-18 20:52:55,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:52:55,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:52:55,705 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 20:52:56,632 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_8fc9030e-a0d2-4dd2-a8d6-f836d38839b6/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-11-18 20:52:56,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:52:56,709 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:52:56,724 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 20:52:56,786 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_8fc9030e-a0d2-4dd2-a8d6-f836d38839b6/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-11-18 20:52:56,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:52:56,909 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:52:56,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:56 WrapperNode [2022-11-18 20:52:56,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:52:56,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:52:56,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:52:56,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:52:56,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:56" (1/1) ... [2022-11-18 20:52:56,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:56" (1/1) ... [2022-11-18 20:52:57,013 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-11-18 20:52:57,014 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:52:57,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:52:57,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:52:57,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:52:57,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:56" (1/1) ... [2022-11-18 20:52:57,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:56" (1/1) ... [2022-11-18 20:52:57,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:56" (1/1) ... [2022-11-18 20:52:57,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:56" (1/1) ... [2022-11-18 20:52:57,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:56" (1/1) ... [2022-11-18 20:52:57,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:56" (1/1) ... [2022-11-18 20:52:57,081 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:56" (1/1) ... [2022-11-18 20:52:57,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:56" (1/1) ... [2022-11-18 20:52:57,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:52:57,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:52:57,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:52:57,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:52:57,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:56" (1/1) ... [2022-11-18 20:52:57,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:52:57,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fc9030e-a0d2-4dd2-a8d6-f836d38839b6/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:52:57,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fc9030e-a0d2-4dd2-a8d6-f836d38839b6/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:52:57,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fc9030e-a0d2-4dd2-a8d6-f836d38839b6/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:52:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:52:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:52:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:52:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:52:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:52:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:52:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:52:57,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:52:57,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:52:57,232 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-18 20:52:57,232 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-18 20:52:57,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:52:57,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:52:57,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:52:57,235 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:52:57,751 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:52:57,753 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:52:58,234 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:52:58,334 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:52:58,334 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:52:58,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:52:58 BoogieIcfgContainer [2022-11-18 20:52:58,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:52:58,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:52:58,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:52:58,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:52:58,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:52:55" (1/3) ... [2022-11-18 20:52:58,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f900ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:52:58, skipping insertion in model container [2022-11-18 20:52:58,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:56" (2/3) ... [2022-11-18 20:52:58,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f900ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:52:58, skipping insertion in model container [2022-11-18 20:52:58,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:52:58" (3/3) ... [2022-11-18 20:52:58,351 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2022-11-18 20:52:58,362 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:52:58,377 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:52:58,377 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 20:52:58,378 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:52:58,457 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 20:52:58,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 173 transitions, 362 flow [2022-11-18 20:52:58,608 INFO L130 PetriNetUnfolder]: 8/220 cut-off events. [2022-11-18 20:52:58,608 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:52:58,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 220 events. 8/220 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 397 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 120. Up to 4 conditions per place. [2022-11-18 20:52:58,615 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 173 transitions, 362 flow [2022-11-18 20:52:58,621 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 139 transitions, 287 flow [2022-11-18 20:52:58,633 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:52:58,642 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;@f93b280, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:52:58,642 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 20:52:58,663 INFO L130 PetriNetUnfolder]: 0/69 cut-off events. [2022-11-18 20:52:58,663 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:52:58,663 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:58,664 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:58,665 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:52:58,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:58,672 INFO L85 PathProgramCache]: Analyzing trace with hash -172955293, now seen corresponding path program 1 times [2022-11-18 20:52:58,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:58,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62887748] [2022-11-18 20:52:58,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:58,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:01,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:01,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:01,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62887748] [2022-11-18 20:53:01,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62887748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:01,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:01,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-18 20:53:01,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098454811] [2022-11-18 20:53:01,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:01,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 20:53:01,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:01,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 20:53:01,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:53:01,921 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 173 [2022-11-18 20:53:01,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 139 transitions, 287 flow. Second operand has 15 states, 15 states have (on average 114.66666666666667) internal successors, (1720), 15 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:01,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:01,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 173 [2022-11-18 20:53:01,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:05,396 INFO L130 PetriNetUnfolder]: 1577/4854 cut-off events. [2022-11-18 20:53:05,397 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-18 20:53:05,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7511 conditions, 4854 events. 1577/4854 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 44022 event pairs, 1050 based on Foata normal form. 160/4439 useless extension candidates. Maximal degree in co-relation 7305. Up to 1945 conditions per place. [2022-11-18 20:53:05,450 INFO L137 encePairwiseOnDemand]: 153/173 looper letters, 82 selfloop transitions, 23 changer transitions 2/194 dead transitions. [2022-11-18 20:53:05,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 194 transitions, 617 flow [2022-11-18 20:53:05,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 20:53:05,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-18 20:53:05,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2151 transitions. [2022-11-18 20:53:05,484 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6907514450867052 [2022-11-18 20:53:05,486 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2151 transitions. [2022-11-18 20:53:05,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2151 transitions. [2022-11-18 20:53:05,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:05,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2151 transitions. [2022-11-18 20:53:05,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 119.5) internal successors, (2151), 18 states have internal predecessors, (2151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:05,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 173.0) internal successors, (3287), 19 states have internal predecessors, (3287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:05,536 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 173.0) internal successors, (3287), 19 states have internal predecessors, (3287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:05,539 INFO L175 Difference]: Start difference. First operand has 144 places, 139 transitions, 287 flow. Second operand 18 states and 2151 transitions. [2022-11-18 20:53:05,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 194 transitions, 617 flow [2022-11-18 20:53:05,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 194 transitions, 609 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:53:05,559 INFO L231 Difference]: Finished difference. Result has 165 places, 150 transitions, 403 flow [2022-11-18 20:53:05,562 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=403, PETRI_PLACES=165, PETRI_TRANSITIONS=150} [2022-11-18 20:53:05,567 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 21 predicate places. [2022-11-18 20:53:05,568 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 150 transitions, 403 flow [2022-11-18 20:53:05,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 114.66666666666667) internal successors, (1720), 15 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:05,570 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:05,571 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:05,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:53:05,571 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:53:05,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:05,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1818391575, now seen corresponding path program 1 times [2022-11-18 20:53:05,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:05,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89206769] [2022-11-18 20:53:05,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:05,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:07,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:07,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:07,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89206769] [2022-11-18 20:53:07,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89206769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:07,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:07,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-18 20:53:07,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227911123] [2022-11-18 20:53:07,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:07,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:53:07,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:07,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:53:07,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:53:07,289 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-18 20:53:07,293 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 150 transitions, 403 flow. Second operand has 19 states, 19 states have (on average 105.6842105263158) internal successors, (2008), 19 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:07,293 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:07,294 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-18 20:53:07,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:11,143 INFO L130 PetriNetUnfolder]: 2116/5606 cut-off events. [2022-11-18 20:53:11,143 INFO L131 PetriNetUnfolder]: For 1338/1354 co-relation queries the response was YES. [2022-11-18 20:53:11,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10357 conditions, 5606 events. 2116/5606 cut-off events. For 1338/1354 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 49359 event pairs, 1148 based on Foata normal form. 83/5072 useless extension candidates. Maximal degree in co-relation 9657. Up to 2179 conditions per place. [2022-11-18 20:53:11,198 INFO L137 encePairwiseOnDemand]: 150/173 looper letters, 116 selfloop transitions, 48 changer transitions 2/245 dead transitions. [2022-11-18 20:53:11,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 245 transitions, 986 flow [2022-11-18 20:53:11,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:53:11,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:53:11,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2348 transitions. [2022-11-18 20:53:11,206 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.646297825488577 [2022-11-18 20:53:11,207 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2348 transitions. [2022-11-18 20:53:11,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2348 transitions. [2022-11-18 20:53:11,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:11,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2348 transitions. [2022-11-18 20:53:11,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 111.80952380952381) internal successors, (2348), 21 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:11,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:11,226 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:11,226 INFO L175 Difference]: Start difference. First operand has 165 places, 150 transitions, 403 flow. Second operand 21 states and 2348 transitions. [2022-11-18 20:53:11,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 245 transitions, 986 flow [2022-11-18 20:53:11,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 245 transitions, 975 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 20:53:11,246 INFO L231 Difference]: Finished difference. Result has 188 places, 184 transitions, 671 flow [2022-11-18 20:53:11,247 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=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=671, PETRI_PLACES=188, PETRI_TRANSITIONS=184} [2022-11-18 20:53:11,248 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 44 predicate places. [2022-11-18 20:53:11,248 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 184 transitions, 671 flow [2022-11-18 20:53:11,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 105.6842105263158) internal successors, (2008), 19 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:11,250 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:11,250 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:11,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:53:11,251 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:53:11,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:11,252 INFO L85 PathProgramCache]: Analyzing trace with hash -437736465, now seen corresponding path program 1 times [2022-11-18 20:53:11,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:11,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501413031] [2022-11-18 20:53:11,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:11,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:12,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:12,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:12,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501413031] [2022-11-18 20:53:12,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501413031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:12,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:12,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-18 20:53:12,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270572042] [2022-11-18 20:53:12,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:12,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:53:12,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:12,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:53:12,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:53:12,850 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-18 20:53:12,854 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 184 transitions, 671 flow. Second operand has 19 states, 19 states have (on average 105.73684210526316) internal successors, (2009), 19 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:12,855 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:12,855 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-18 20:53:12,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:17,318 INFO L130 PetriNetUnfolder]: 3472/9652 cut-off events. [2022-11-18 20:53:17,318 INFO L131 PetriNetUnfolder]: For 8936/10839 co-relation queries the response was YES. [2022-11-18 20:53:17,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20880 conditions, 9652 events. 3472/9652 cut-off events. For 8936/10839 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 96128 event pairs, 1506 based on Foata normal form. 65/8861 useless extension candidates. Maximal degree in co-relation 19591. Up to 4749 conditions per place. [2022-11-18 20:53:17,478 INFO L137 encePairwiseOnDemand]: 150/173 looper letters, 121 selfloop transitions, 88 changer transitions 5/301 dead transitions. [2022-11-18 20:53:17,478 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 301 transitions, 1582 flow [2022-11-18 20:53:17,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:53:17,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:53:17,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2337 transitions. [2022-11-18 20:53:17,487 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.643270024772915 [2022-11-18 20:53:17,487 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2337 transitions. [2022-11-18 20:53:17,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2337 transitions. [2022-11-18 20:53:17,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:17,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2337 transitions. [2022-11-18 20:53:17,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 111.28571428571429) internal successors, (2337), 21 states have internal predecessors, (2337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:17,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:17,510 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:17,511 INFO L175 Difference]: Start difference. First operand has 188 places, 184 transitions, 671 flow. Second operand 21 states and 2337 transitions. [2022-11-18 20:53:17,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 301 transitions, 1582 flow [2022-11-18 20:53:17,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 301 transitions, 1508 flow, removed 28 selfloop flow, removed 10 redundant places. [2022-11-18 20:53:17,652 INFO L231 Difference]: Finished difference. Result has 207 places, 243 transitions, 1207 flow [2022-11-18 20:53:17,653 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1207, PETRI_PLACES=207, PETRI_TRANSITIONS=243} [2022-11-18 20:53:17,656 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 63 predicate places. [2022-11-18 20:53:17,657 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 243 transitions, 1207 flow [2022-11-18 20:53:17,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 105.73684210526316) internal successors, (2009), 19 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:17,659 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:17,659 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:17,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:53:17,660 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:53:17,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:17,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1207743595, now seen corresponding path program 1 times [2022-11-18 20:53:17,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:17,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935386736] [2022-11-18 20:53:17,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:17,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:19,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:19,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:19,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935386736] [2022-11-18 20:53:19,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935386736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:19,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:19,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-18 20:53:19,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867422437] [2022-11-18 20:53:19,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:19,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:53:19,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:19,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:53:19,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:53:19,505 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-18 20:53:19,510 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 243 transitions, 1207 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:19,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:19,510 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-18 20:53:19,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:27,962 INFO L130 PetriNetUnfolder]: 4287/13185 cut-off events. [2022-11-18 20:53:27,963 INFO L131 PetriNetUnfolder]: For 10882/14043 co-relation queries the response was YES. [2022-11-18 20:53:28,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27777 conditions, 13185 events. 4287/13185 cut-off events. For 10882/14043 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 144626 event pairs, 1181 based on Foata normal form. 106/12469 useless extension candidates. Maximal degree in co-relation 26158. Up to 1976 conditions per place. [2022-11-18 20:53:28,141 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 415 selfloop transitions, 81 changer transitions 3/629 dead transitions. [2022-11-18 20:53:28,141 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 629 transitions, 4114 flow [2022-11-18 20:53:28,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 20:53:28,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-18 20:53:28,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3691 transitions. [2022-11-18 20:53:28,158 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7619735755573905 [2022-11-18 20:53:28,159 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3691 transitions. [2022-11-18 20:53:28,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3691 transitions. [2022-11-18 20:53:28,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:28,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3691 transitions. [2022-11-18 20:53:28,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 131.82142857142858) internal successors, (3691), 28 states have internal predecessors, (3691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:28,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:28,197 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:28,198 INFO L175 Difference]: Start difference. First operand has 207 places, 243 transitions, 1207 flow. Second operand 28 states and 3691 transitions. [2022-11-18 20:53:28,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 629 transitions, 4114 flow [2022-11-18 20:53:28,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 629 transitions, 4047 flow, removed 26 selfloop flow, removed 8 redundant places. [2022-11-18 20:53:28,313 INFO L231 Difference]: Finished difference. Result has 238 places, 301 transitions, 1806 flow [2022-11-18 20:53:28,314 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=1170, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1806, PETRI_PLACES=238, PETRI_TRANSITIONS=301} [2022-11-18 20:53:28,316 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 94 predicate places. [2022-11-18 20:53:28,316 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 301 transitions, 1806 flow [2022-11-18 20:53:28,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:28,318 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:28,318 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:28,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:53:28,319 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:53:28,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:28,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1240263857, now seen corresponding path program 1 times [2022-11-18 20:53:28,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:28,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354830350] [2022-11-18 20:53:28,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:28,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:29,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:29,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:29,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354830350] [2022-11-18 20:53:29,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354830350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:29,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:29,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-18 20:53:29,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092329950] [2022-11-18 20:53:29,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:29,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:53:29,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:29,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:53:29,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:53:29,868 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-18 20:53:29,871 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 301 transitions, 1806 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:29,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:29,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-18 20:53:29,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:39,302 INFO L130 PetriNetUnfolder]: 6487/20508 cut-off events. [2022-11-18 20:53:39,302 INFO L131 PetriNetUnfolder]: For 30302/38417 co-relation queries the response was YES. [2022-11-18 20:53:39,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49877 conditions, 20508 events. 6487/20508 cut-off events. For 30302/38417 co-relation queries the response was YES. Maximal size of possible extension queue 829. Compared 249950 event pairs, 1944 based on Foata normal form. 314/19562 useless extension candidates. Maximal degree in co-relation 47968. Up to 3254 conditions per place. [2022-11-18 20:53:39,600 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 452 selfloop transitions, 121 changer transitions 4/707 dead transitions. [2022-11-18 20:53:39,600 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 707 transitions, 5411 flow [2022-11-18 20:53:39,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 20:53:39,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-18 20:53:39,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3708 transitions. [2022-11-18 20:53:39,621 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7654830718414534 [2022-11-18 20:53:39,621 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3708 transitions. [2022-11-18 20:53:39,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3708 transitions. [2022-11-18 20:53:39,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:39,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3708 transitions. [2022-11-18 20:53:39,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 132.42857142857142) internal successors, (3708), 28 states have internal predecessors, (3708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:39,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:39,662 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:39,672 INFO L175 Difference]: Start difference. First operand has 238 places, 301 transitions, 1806 flow. Second operand 28 states and 3708 transitions. [2022-11-18 20:53:39,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 707 transitions, 5411 flow [2022-11-18 20:53:39,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 707 transitions, 5365 flow, removed 8 selfloop flow, removed 8 redundant places. [2022-11-18 20:53:39,988 INFO L231 Difference]: Finished difference. Result has 270 places, 356 transitions, 2787 flow [2022-11-18 20:53:39,989 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=1760, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=2787, PETRI_PLACES=270, PETRI_TRANSITIONS=356} [2022-11-18 20:53:39,993 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 126 predicate places. [2022-11-18 20:53:39,994 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 356 transitions, 2787 flow [2022-11-18 20:53:39,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:39,996 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:39,996 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:39,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:53:39,997 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:53:39,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:39,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1564943207, now seen corresponding path program 2 times [2022-11-18 20:53:39,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:39,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866061092] [2022-11-18 20:53:39,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:40,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:41,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:41,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:41,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866061092] [2022-11-18 20:53:41,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866061092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:41,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:41,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 20:53:41,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989010657] [2022-11-18 20:53:41,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:41,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:53:41,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:41,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:53:41,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:53:41,538 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-18 20:53:41,542 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 356 transitions, 2787 flow. Second operand has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:41,542 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:41,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-18 20:53:41,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:52,039 INFO L130 PetriNetUnfolder]: 6991/22990 cut-off events. [2022-11-18 20:53:52,039 INFO L131 PetriNetUnfolder]: For 57883/67004 co-relation queries the response was YES. [2022-11-18 20:53:52,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61434 conditions, 22990 events. 6991/22990 cut-off events. For 57883/67004 co-relation queries the response was YES. Maximal size of possible extension queue 917. Compared 288299 event pairs, 2755 based on Foata normal form. 148/21598 useless extension candidates. Maximal degree in co-relation 60016. Up to 3252 conditions per place. [2022-11-18 20:53:52,422 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 495 selfloop transitions, 125 changer transitions 2/752 dead transitions. [2022-11-18 20:53:52,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 752 transitions, 6792 flow [2022-11-18 20:53:52,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 20:53:52,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-18 20:53:52,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3713 transitions. [2022-11-18 20:53:52,440 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7665152766308836 [2022-11-18 20:53:52,440 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3713 transitions. [2022-11-18 20:53:52,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3713 transitions. [2022-11-18 20:53:52,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:52,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3713 transitions. [2022-11-18 20:53:52,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 132.60714285714286) internal successors, (3713), 28 states have internal predecessors, (3713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:52,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:52,474 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:52,474 INFO L175 Difference]: Start difference. First operand has 270 places, 356 transitions, 2787 flow. Second operand 28 states and 3713 transitions. [2022-11-18 20:53:52,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 752 transitions, 6792 flow [2022-11-18 20:53:52,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 752 transitions, 6660 flow, removed 39 selfloop flow, removed 13 redundant places. [2022-11-18 20:53:52,914 INFO L231 Difference]: Finished difference. Result has 296 places, 388 transitions, 3506 flow [2022-11-18 20:53:52,915 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=2701, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=3506, PETRI_PLACES=296, PETRI_TRANSITIONS=388} [2022-11-18 20:53:52,916 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 152 predicate places. [2022-11-18 20:53:52,916 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 388 transitions, 3506 flow [2022-11-18 20:53:52,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:52,918 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:52,918 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:52,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:53:52,918 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:53:52,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:52,919 INFO L85 PathProgramCache]: Analyzing trace with hash -2129808843, now seen corresponding path program 3 times [2022-11-18 20:53:52,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:52,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497059418] [2022-11-18 20:53:52,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:52,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:54,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:54,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497059418] [2022-11-18 20:53:54,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497059418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:54,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:54,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 20:53:54,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373715608] [2022-11-18 20:53:54,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:54,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:53:54,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:54,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:53:54,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:53:54,627 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-18 20:53:54,632 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 388 transitions, 3506 flow. Second operand has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:54,632 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:54,632 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-18 20:53:54,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:54:05,154 INFO L130 PetriNetUnfolder]: 7154/22585 cut-off events. [2022-11-18 20:54:05,155 INFO L131 PetriNetUnfolder]: For 72710/82496 co-relation queries the response was YES. [2022-11-18 20:54:05,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64808 conditions, 22585 events. 7154/22585 cut-off events. For 72710/82496 co-relation queries the response was YES. Maximal size of possible extension queue 918. Compared 278604 event pairs, 2554 based on Foata normal form. 224/21279 useless extension candidates. Maximal degree in co-relation 64486. Up to 3260 conditions per place. [2022-11-18 20:54:05,491 INFO L137 encePairwiseOnDemand]: 155/173 looper letters, 467 selfloop transitions, 142 changer transitions 2/741 dead transitions. [2022-11-18 20:54:05,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 741 transitions, 7212 flow [2022-11-18 20:54:05,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 20:54:05,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-18 20:54:05,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3694 transitions. [2022-11-18 20:54:05,499 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7625928984310487 [2022-11-18 20:54:05,499 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3694 transitions. [2022-11-18 20:54:05,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3694 transitions. [2022-11-18 20:54:05,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:54:05,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3694 transitions. [2022-11-18 20:54:05,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 131.92857142857142) internal successors, (3694), 28 states have internal predecessors, (3694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:05,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:05,518 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:05,518 INFO L175 Difference]: Start difference. First operand has 296 places, 388 transitions, 3506 flow. Second operand 28 states and 3694 transitions. [2022-11-18 20:54:05,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 741 transitions, 7212 flow [2022-11-18 20:54:05,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 741 transitions, 6865 flow, removed 140 selfloop flow, removed 14 redundant places. [2022-11-18 20:54:05,967 INFO L231 Difference]: Finished difference. Result has 315 places, 406 transitions, 4065 flow [2022-11-18 20:54:05,968 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=3371, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=388, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=4065, PETRI_PLACES=315, PETRI_TRANSITIONS=406} [2022-11-18 20:54:05,969 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 171 predicate places. [2022-11-18 20:54:05,969 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 406 transitions, 4065 flow [2022-11-18 20:54:05,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:05,970 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:54:05,970 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:05,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:54:05,970 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:54:05,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:05,971 INFO L85 PathProgramCache]: Analyzing trace with hash -2114908497, now seen corresponding path program 4 times [2022-11-18 20:54:05,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:05,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476654855] [2022-11-18 20:54:05,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:05,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:07,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:54:07,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:07,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476654855] [2022-11-18 20:54:07,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476654855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:54:07,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:54:07,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 20:54:07,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60686182] [2022-11-18 20:54:07,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:54:07,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:54:07,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:07,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:54:07,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:54:07,171 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-18 20:54:07,174 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 406 transitions, 4065 flow. Second operand has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:07,174 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:54:07,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-18 20:54:07,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:54:19,045 INFO L130 PetriNetUnfolder]: 7574/23782 cut-off events. [2022-11-18 20:54:19,045 INFO L131 PetriNetUnfolder]: For 85075/96554 co-relation queries the response was YES. [2022-11-18 20:54:19,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69159 conditions, 23782 events. 7574/23782 cut-off events. For 85075/96554 co-relation queries the response was YES. Maximal size of possible extension queue 986. Compared 295532 event pairs, 2467 based on Foata normal form. 212/22366 useless extension candidates. Maximal degree in co-relation 68815. Up to 3400 conditions per place. [2022-11-18 20:54:19,538 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 507 selfloop transitions, 150 changer transitions 2/789 dead transitions. [2022-11-18 20:54:19,538 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 789 transitions, 7941 flow [2022-11-18 20:54:19,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 20:54:19,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-18 20:54:19,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3712 transitions. [2022-11-18 20:54:19,548 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7663088356729976 [2022-11-18 20:54:19,548 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3712 transitions. [2022-11-18 20:54:19,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3712 transitions. [2022-11-18 20:54:19,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:54:19,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3712 transitions. [2022-11-18 20:54:19,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 132.57142857142858) internal successors, (3712), 28 states have internal predecessors, (3712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:19,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:19,574 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:19,574 INFO L175 Difference]: Start difference. First operand has 315 places, 406 transitions, 4065 flow. Second operand 28 states and 3712 transitions. [2022-11-18 20:54:19,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 789 transitions, 7941 flow [2022-11-18 20:54:20,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 789 transitions, 7737 flow, removed 8 selfloop flow, removed 20 redundant places. [2022-11-18 20:54:20,388 INFO L231 Difference]: Finished difference. Result has 332 places, 431 transitions, 4815 flow [2022-11-18 20:54:20,390 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=3877, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=4815, PETRI_PLACES=332, PETRI_TRANSITIONS=431} [2022-11-18 20:54:20,390 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 188 predicate places. [2022-11-18 20:54:20,391 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 431 transitions, 4815 flow [2022-11-18 20:54:20,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:20,392 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:54:20,393 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:20,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:54:20,393 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:54:20,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:20,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1582184111, now seen corresponding path program 5 times [2022-11-18 20:54:20,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:20,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016464311] [2022-11-18 20:54:20,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:20,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:21,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:54:21,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:21,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016464311] [2022-11-18 20:54:21,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016464311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:54:21,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:54:21,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 20:54:21,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149563059] [2022-11-18 20:54:21,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:54:21,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:54:21,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:21,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:54:21,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:54:21,870 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-18 20:54:21,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 431 transitions, 4815 flow. Second operand has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:21,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:54:21,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-18 20:54:21,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:54:33,209 INFO L130 PetriNetUnfolder]: 6464/21029 cut-off events. [2022-11-18 20:54:33,209 INFO L131 PetriNetUnfolder]: For 82680/91199 co-relation queries the response was YES. [2022-11-18 20:54:33,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61361 conditions, 21029 events. 6464/21029 cut-off events. For 82680/91199 co-relation queries the response was YES. Maximal size of possible extension queue 829. Compared 257622 event pairs, 2389 based on Foata normal form. 198/19791 useless extension candidates. Maximal degree in co-relation 61038. Up to 3252 conditions per place. [2022-11-18 20:54:33,728 INFO L137 encePairwiseOnDemand]: 155/173 looper letters, 482 selfloop transitions, 150 changer transitions 0/762 dead transitions. [2022-11-18 20:54:33,728 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 762 transitions, 8034 flow [2022-11-18 20:54:33,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 20:54:33,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-18 20:54:33,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3697 transitions. [2022-11-18 20:54:33,736 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7632122213047069 [2022-11-18 20:54:33,736 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3697 transitions. [2022-11-18 20:54:33,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3697 transitions. [2022-11-18 20:54:33,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:54:33,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3697 transitions. [2022-11-18 20:54:33,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 132.03571428571428) internal successors, (3697), 28 states have internal predecessors, (3697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:33,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:33,758 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:33,758 INFO L175 Difference]: Start difference. First operand has 332 places, 431 transitions, 4815 flow. Second operand 28 states and 3697 transitions. [2022-11-18 20:54:33,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 762 transitions, 8034 flow [2022-11-18 20:54:34,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 762 transitions, 7852 flow, removed 43 selfloop flow, removed 16 redundant places. [2022-11-18 20:54:34,497 INFO L231 Difference]: Finished difference. Result has 351 places, 438 transitions, 5200 flow [2022-11-18 20:54:34,498 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=4473, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=5200, PETRI_PLACES=351, PETRI_TRANSITIONS=438} [2022-11-18 20:54:34,498 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 207 predicate places. [2022-11-18 20:54:34,499 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 438 transitions, 5200 flow [2022-11-18 20:54:34,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:34,500 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:54:34,500 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:34,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:54:34,500 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:54:34,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:34,501 INFO L85 PathProgramCache]: Analyzing trace with hash -194631437, now seen corresponding path program 6 times [2022-11-18 20:54:34,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:34,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628890997] [2022-11-18 20:54:34,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:34,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:36,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:54:36,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:36,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628890997] [2022-11-18 20:54:36,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628890997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:54:36,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:54:36,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-18 20:54:36,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887900830] [2022-11-18 20:54:36,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:54:36,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:54:36,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:36,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:54:36,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:54:36,212 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-18 20:54:36,216 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 438 transitions, 5200 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:36,216 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:54:36,217 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-18 20:54:36,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:54:49,351 INFO L130 PetriNetUnfolder]: 8979/27945 cut-off events. [2022-11-18 20:54:49,351 INFO L131 PetriNetUnfolder]: For 108664/124340 co-relation queries the response was YES. [2022-11-18 20:54:49,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83424 conditions, 27945 events. 8979/27945 cut-off events. For 108664/124340 co-relation queries the response was YES. Maximal size of possible extension queue 1125. Compared 355360 event pairs, 2442 based on Foata normal form. 516/26716 useless extension candidates. Maximal degree in co-relation 83075. Up to 3582 conditions per place. [2022-11-18 20:54:49,956 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 505 selfloop transitions, 223 changer transitions 4/862 dead transitions. [2022-11-18 20:54:49,956 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 862 transitions, 9788 flow [2022-11-18 20:54:49,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 20:54:49,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-18 20:54:49,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3707 transitions. [2022-11-18 20:54:49,963 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7652766308835673 [2022-11-18 20:54:49,964 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3707 transitions. [2022-11-18 20:54:49,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3707 transitions. [2022-11-18 20:54:49,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:54:49,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3707 transitions. [2022-11-18 20:54:49,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 132.39285714285714) internal successors, (3707), 28 states have internal predecessors, (3707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:49,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:49,981 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:49,981 INFO L175 Difference]: Start difference. First operand has 351 places, 438 transitions, 5200 flow. Second operand 28 states and 3707 transitions. [2022-11-18 20:54:49,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 862 transitions, 9788 flow [2022-11-18 20:54:51,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 862 transitions, 9501 flow, removed 37 selfloop flow, removed 18 redundant places. [2022-11-18 20:54:51,129 INFO L231 Difference]: Finished difference. Result has 375 places, 502 transitions, 6767 flow [2022-11-18 20:54:51,130 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=4989, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=159, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=6767, PETRI_PLACES=375, PETRI_TRANSITIONS=502} [2022-11-18 20:54:51,131 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 231 predicate places. [2022-11-18 20:54:51,131 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 502 transitions, 6767 flow [2022-11-18 20:54:51,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:51,132 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:54:51,132 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:51,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:54:51,133 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:54:51,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:51,133 INFO L85 PathProgramCache]: Analyzing trace with hash -384588399, now seen corresponding path program 7 times [2022-11-18 20:54:51,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:51,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945857369] [2022-11-18 20:54:51,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:51,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:52,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:54:52,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:52,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945857369] [2022-11-18 20:54:52,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945857369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:54:52,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:54:52,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-18 20:54:52,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338494311] [2022-11-18 20:54:52,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:54:52,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:54:52,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:52,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:54:52,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:54:52,511 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-18 20:54:52,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 502 transitions, 6767 flow. Second operand has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:54:52,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:54:52,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-18 20:54:52,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand