./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 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913d9723-f385-4a02-a077-bc224c7d103c/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913d9723-f385-4a02-a077-bc224c7d103c/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913d9723-f385-4a02-a077-bc224c7d103c/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913d9723-f385-4a02-a077-bc224c7d103c/bin/uautomizer-ug76WZFUDN/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_913d9723-f385-4a02-a077-bc224c7d103c/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913d9723-f385-4a02-a077-bc224c7d103c/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-6b4ec56 [2022-11-20 12:49:39,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:49:39,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:49:39,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:49:39,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:49:39,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:49:39,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:49:39,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:49:39,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:49:39,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:49:39,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:49:39,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:49:39,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:49:39,350 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:49:39,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:49:39,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:49:39,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:49:39,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:49:39,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:49:39,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:49:39,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:49:39,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:49:39,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:49:39,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:49:39,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:49:39,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:49:39,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:49:39,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:49:39,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:49:39,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:49:39,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:49:39,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:49:39,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:49:39,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:49:39,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:49:39,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:49:39,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:49:39,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:49:39,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:49:39,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:49:39,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:49:39,400 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913d9723-f385-4a02-a077-bc224c7d103c/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 12:49:39,440 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:49:39,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:49:39,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:49:39,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:49:39,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:49:39,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:49:39,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:49:39,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:49:39,443 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:49:39,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:49:39,444 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:49:39,444 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:49:39,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:49:39,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:49:39,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:49:39,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:49:39,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:49:39,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:49:39,446 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 12:49:39,446 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:49:39,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:49:39,446 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:49:39,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:49:39,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:49:39,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:49:39,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:49:39,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:49:39,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:49:39,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:49:39,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:49:39,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:49:39,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:49:39,449 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:49:39,449 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:49:39,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:49:39,450 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_913d9723-f385-4a02-a077-bc224c7d103c/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913d9723-f385-4a02-a077-bc224c7d103c/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da [2022-11-20 12:49:39,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:49:39,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:49:39,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:49:39,762 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:49:39,762 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:49:39,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913d9723-f385-4a02-a077-bc224c7d103c/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-11-20 12:49:42,703 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:49:43,041 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:49:43,050 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913d9723-f385-4a02-a077-bc224c7d103c/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-11-20 12:49:43,081 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913d9723-f385-4a02-a077-bc224c7d103c/bin/uautomizer-ug76WZFUDN/data/5c8396b43/37255e6cbc7a4d43884068d5d163844f/FLAG30c5b4fdb [2022-11-20 12:49:43,096 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913d9723-f385-4a02-a077-bc224c7d103c/bin/uautomizer-ug76WZFUDN/data/5c8396b43/37255e6cbc7a4d43884068d5d163844f [2022-11-20 12:49:43,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:49:43,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:49:43,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:49:43,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:49:43,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:49:43,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:49:43" (1/1) ... [2022-11-20 12:49:43,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74dd3b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:43, skipping insertion in model container [2022-11-20 12:49:43,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:49:43" (1/1) ... [2022-11-20 12:49:43,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:49:43,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:49:43,378 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 12:49:43,965 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913d9723-f385-4a02-a077-bc224c7d103c/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-11-20 12:49:44,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:49:44,013 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:49:44,025 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 12:49:44,055 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913d9723-f385-4a02-a077-bc224c7d103c/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-11-20 12:49:44,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:49:44,188 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:49:44,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:44 WrapperNode [2022-11-20 12:49:44,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:49:44,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:49:44,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:49:44,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:49:44,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:44" (1/1) ... [2022-11-20 12:49:44,252 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:44" (1/1) ... [2022-11-20 12:49:44,297 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-11-20 12:49:44,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:49:44,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:49:44,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:49:44,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:49:44,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:44" (1/1) ... [2022-11-20 12:49:44,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:44" (1/1) ... [2022-11-20 12:49:44,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:44" (1/1) ... [2022-11-20 12:49:44,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:44" (1/1) ... [2022-11-20 12:49:44,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:44" (1/1) ... [2022-11-20 12:49:44,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:44" (1/1) ... [2022-11-20 12:49:44,365 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:44" (1/1) ... [2022-11-20 12:49:44,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:44" (1/1) ... [2022-11-20 12:49:44,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:49:44,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:49:44,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:49:44,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:49:44,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:44" (1/1) ... [2022-11-20 12:49:44,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:49:44,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913d9723-f385-4a02-a077-bc224c7d103c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:49:44,407 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913d9723-f385-4a02-a077-bc224c7d103c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:49:44,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913d9723-f385-4a02-a077-bc224c7d103c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:49:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 12:49:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:49:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 12:49:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:49:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 12:49:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:49:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:49:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:49:44,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:49:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-20 12:49:44,463 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-20 12:49:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:49:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:49:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:49:44,465 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:49:44,766 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:49:44,768 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:49:45,123 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:49:45,209 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:49:45,217 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:49:45,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:49:45 BoogieIcfgContainer [2022-11-20 12:49:45,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:49:45,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:49:45,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:49:45,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:49:45,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:49:43" (1/3) ... [2022-11-20 12:49:45,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ba9c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:49:45, skipping insertion in model container [2022-11-20 12:49:45,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:44" (2/3) ... [2022-11-20 12:49:45,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ba9c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:49:45, skipping insertion in model container [2022-11-20 12:49:45,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:49:45" (3/3) ... [2022-11-20 12:49:45,237 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2022-11-20 12:49:45,257 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:49:45,267 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:49:45,268 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 12:49:45,268 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:49:45,337 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 12:49:45,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 173 transitions, 362 flow [2022-11-20 12:49:45,461 INFO L130 PetriNetUnfolder]: 8/220 cut-off events. [2022-11-20 12:49:45,461 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 12:49:45,467 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. [2022-11-20 12:49:45,467 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 173 transitions, 362 flow [2022-11-20 12:49:45,472 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 139 transitions, 287 flow [2022-11-20 12:49:45,482 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:49:45,489 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;@256ab9a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:49:45,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-20 12:49:45,505 INFO L130 PetriNetUnfolder]: 0/69 cut-off events. [2022-11-20 12:49:45,506 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:49:45,506 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:49:45,507 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:45,507 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:49:45,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:45,512 INFO L85 PathProgramCache]: Analyzing trace with hash -172955293, now seen corresponding path program 1 times [2022-11-20 12:49:45,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:45,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053995820] [2022-11-20 12:49:45,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:45,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:47,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:49:47,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:47,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053995820] [2022-11-20 12:49:47,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053995820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:47,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:47,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-20 12:49:47,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914367420] [2022-11-20 12:49:47,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:47,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 12:49:47,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:47,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 12:49:47,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-20 12:49:47,950 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 173 [2022-11-20 12:49:47,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 139 transitions, 287 flow. Second operand has 15 states, 15 states have (on average 114.66666666666667) internal successors, (1720), 15 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:47,956 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:49:47,956 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 173 [2022-11-20 12:49:47,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:49:50,542 INFO L130 PetriNetUnfolder]: 1577/4854 cut-off events. [2022-11-20 12:49:50,543 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-20 12:49:50,556 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. [2022-11-20 12:49:50,578 INFO L137 encePairwiseOnDemand]: 153/173 looper letters, 82 selfloop transitions, 23 changer transitions 2/194 dead transitions. [2022-11-20 12:49:50,579 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 194 transitions, 617 flow [2022-11-20 12:49:50,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 12:49:50,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 12:49:50,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2151 transitions. [2022-11-20 12:49:50,600 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6907514450867052 [2022-11-20 12:49:50,601 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2151 transitions. [2022-11-20 12:49:50,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2151 transitions. [2022-11-20 12:49:50,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:49:50,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2151 transitions. [2022-11-20 12:49:50,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 119.5) internal successors, (2151), 18 states have internal predecessors, (2151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:50,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 173.0) internal successors, (3287), 19 states have internal predecessors, (3287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:50,630 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 173.0) internal successors, (3287), 19 states have internal predecessors, (3287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:50,632 INFO L175 Difference]: Start difference. First operand has 144 places, 139 transitions, 287 flow. Second operand 18 states and 2151 transitions. [2022-11-20 12:49:50,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 194 transitions, 617 flow [2022-11-20 12:49:50,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 194 transitions, 609 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 12:49:50,645 INFO L231 Difference]: Finished difference. Result has 165 places, 150 transitions, 403 flow [2022-11-20 12:49:50,647 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=403, PETRI_PLACES=165, PETRI_TRANSITIONS=150} [2022-11-20 12:49:50,651 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 21 predicate places. [2022-11-20 12:49:50,651 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 150 transitions, 403 flow [2022-11-20 12:49:50,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 114.66666666666667) internal successors, (1720), 15 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:50,652 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:49:50,653 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:50,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:49:50,653 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:49:50,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:50,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1818391575, now seen corresponding path program 1 times [2022-11-20 12:49:50,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:50,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125912953] [2022-11-20 12:49:50,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:50,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:51,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:49:51,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:51,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125912953] [2022-11-20 12:49:51,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125912953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:51,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:51,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-20 12:49:51,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624334028] [2022-11-20 12:49:51,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:51,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 12:49:51,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:51,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 12:49:51,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-11-20 12:49:51,906 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-20 12:49:51,909 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 150 transitions, 403 flow. Second operand has 19 states, 19 states have (on average 105.6842105263158) internal successors, (2008), 19 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:51,909 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:49:51,909 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-20 12:49:51,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:49:54,755 INFO L130 PetriNetUnfolder]: 2116/5606 cut-off events. [2022-11-20 12:49:54,755 INFO L131 PetriNetUnfolder]: For 1338/1354 co-relation queries the response was YES. [2022-11-20 12:49:54,773 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. [2022-11-20 12:49:54,796 INFO L137 encePairwiseOnDemand]: 150/173 looper letters, 116 selfloop transitions, 48 changer transitions 2/245 dead transitions. [2022-11-20 12:49:54,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 245 transitions, 986 flow [2022-11-20 12:49:54,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 12:49:54,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 12:49:54,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2348 transitions. [2022-11-20 12:49:54,803 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.646297825488577 [2022-11-20 12:49:54,803 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2348 transitions. [2022-11-20 12:49:54,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2348 transitions. [2022-11-20 12:49:54,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:49:54,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2348 transitions. [2022-11-20 12:49:54,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 111.80952380952381) internal successors, (2348), 21 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:54,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:54,820 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:54,821 INFO L175 Difference]: Start difference. First operand has 165 places, 150 transitions, 403 flow. Second operand 21 states and 2348 transitions. [2022-11-20 12:49:54,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 245 transitions, 986 flow [2022-11-20 12:49:54,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 245 transitions, 975 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 12:49:54,844 INFO L231 Difference]: Finished difference. Result has 188 places, 184 transitions, 671 flow [2022-11-20 12:49:54,844 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} [2022-11-20 12:49:54,846 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 44 predicate places. [2022-11-20 12:49:54,846 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 184 transitions, 671 flow [2022-11-20 12:49:54,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 105.6842105263158) internal successors, (2008), 19 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:54,848 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:49:54,848 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:54,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:49:54,849 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:49:54,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:54,852 INFO L85 PathProgramCache]: Analyzing trace with hash -437736465, now seen corresponding path program 1 times [2022-11-20 12:49:54,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:54,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716810497] [2022-11-20 12:49:54,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:54,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:56,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:49:56,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:49:56,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716810497] [2022-11-20 12:49:56,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716810497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:49:56,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:49:56,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-20 12:49:56,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224999503] [2022-11-20 12:49:56,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:56,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 12:49:56,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:49:56,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 12:49:56,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-11-20 12:49:56,147 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-11-20 12:49:56,150 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) [2022-11-20 12:49:56,151 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:49:56,151 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-11-20 12:49:56,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:49:59,490 INFO L130 PetriNetUnfolder]: 3472/9652 cut-off events. [2022-11-20 12:49:59,490 INFO L131 PetriNetUnfolder]: For 8936/10839 co-relation queries the response was YES. [2022-11-20 12:49:59,554 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. [2022-11-20 12:49:59,604 INFO L137 encePairwiseOnDemand]: 150/173 looper letters, 121 selfloop transitions, 88 changer transitions 5/301 dead transitions. [2022-11-20 12:49:59,604 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 301 transitions, 1582 flow [2022-11-20 12:49:59,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 12:49:59,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 12:49:59,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2337 transitions. [2022-11-20 12:49:59,611 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.643270024772915 [2022-11-20 12:49:59,611 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2337 transitions. [2022-11-20 12:49:59,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2337 transitions. [2022-11-20 12:49:59,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:49:59,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2337 transitions. [2022-11-20 12:49:59,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 111.28571428571429) internal successors, (2337), 21 states have internal predecessors, (2337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:59,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:59,628 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:59,628 INFO L175 Difference]: Start difference. First operand has 188 places, 184 transitions, 671 flow. Second operand 21 states and 2337 transitions. [2022-11-20 12:49:59,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 301 transitions, 1582 flow [2022-11-20 12:49:59,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 301 transitions, 1508 flow, removed 28 selfloop flow, removed 10 redundant places. [2022-11-20 12:49:59,870 INFO L231 Difference]: Finished difference. Result has 207 places, 243 transitions, 1207 flow [2022-11-20 12:49:59,871 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} [2022-11-20 12:49:59,873 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 63 predicate places. [2022-11-20 12:49:59,874 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 243 transitions, 1207 flow [2022-11-20 12:49:59,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 105.73684210526316) internal successors, (2009), 19 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:49:59,875 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:49:59,875 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:49:59,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:49:59,876 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:49:59,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:59,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1207743595, now seen corresponding path program 1 times [2022-11-20 12:49:59,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:49:59,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878897322] [2022-11-20 12:49:59,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:59,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:49:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:01,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:50:01,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:50:01,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878897322] [2022-11-20 12:50:01,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878897322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:50:01,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:50:01,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-20 12:50:01,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545495037] [2022-11-20 12:50:01,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:01,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 12:50:01,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:50:01,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 12:50:01,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:50:01,231 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-20 12:50:01,234 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) [2022-11-20 12:50:01,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:50:01,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-20 12:50:01,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:50:07,700 INFO L130 PetriNetUnfolder]: 4287/13185 cut-off events. [2022-11-20 12:50:07,701 INFO L131 PetriNetUnfolder]: For 10882/14043 co-relation queries the response was YES. [2022-11-20 12:50:07,795 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. [2022-11-20 12:50:07,840 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 415 selfloop transitions, 81 changer transitions 3/629 dead transitions. [2022-11-20 12:50:07,840 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 629 transitions, 4114 flow [2022-11-20 12:50:07,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 12:50:07,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 12:50:07,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3691 transitions. [2022-11-20 12:50:07,848 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7619735755573905 [2022-11-20 12:50:07,849 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3691 transitions. [2022-11-20 12:50:07,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3691 transitions. [2022-11-20 12:50:07,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:50:07,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3691 transitions. [2022-11-20 12:50:07,859 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) [2022-11-20 12:50:07,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:50:07,871 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:50:07,871 INFO L175 Difference]: Start difference. First operand has 207 places, 243 transitions, 1207 flow. Second operand 28 states and 3691 transitions. [2022-11-20 12:50:07,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 629 transitions, 4114 flow [2022-11-20 12:50:07,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 629 transitions, 4047 flow, removed 26 selfloop flow, removed 8 redundant places. [2022-11-20 12:50:07,943 INFO L231 Difference]: Finished difference. Result has 238 places, 301 transitions, 1806 flow [2022-11-20 12:50:07,944 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} [2022-11-20 12:50:07,944 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 94 predicate places. [2022-11-20 12:50:07,945 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 301 transitions, 1806 flow [2022-11-20 12:50:07,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:50:07,946 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:50:07,946 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:07,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:50:07,947 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:50:07,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:07,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1240263857, now seen corresponding path program 1 times [2022-11-20 12:50:07,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:50:07,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215676001] [2022-11-20 12:50:07,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:07,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:50:07,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:09,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:50:09,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:50:09,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215676001] [2022-11-20 12:50:09,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215676001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:50:09,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:50:09,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-20 12:50:09,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622219725] [2022-11-20 12:50:09,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:09,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 12:50:09,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:50:09,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 12:50:09,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:50:09,042 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-20 12:50:09,044 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) [2022-11-20 12:50:09,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:50:09,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-20 12:50:09,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:50:16,573 INFO L130 PetriNetUnfolder]: 6487/20508 cut-off events. [2022-11-20 12:50:16,573 INFO L131 PetriNetUnfolder]: For 30302/38417 co-relation queries the response was YES. [2022-11-20 12:50:16,721 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. [2022-11-20 12:50:16,811 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 452 selfloop transitions, 121 changer transitions 4/707 dead transitions. [2022-11-20 12:50:16,811 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 707 transitions, 5411 flow [2022-11-20 12:50:16,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 12:50:16,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 12:50:16,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3708 transitions. [2022-11-20 12:50:16,826 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7654830718414534 [2022-11-20 12:50:16,826 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3708 transitions. [2022-11-20 12:50:16,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3708 transitions. [2022-11-20 12:50:16,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:50:16,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3708 transitions. [2022-11-20 12:50:16,840 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) [2022-11-20 12:50:16,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:50:16,862 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:50:16,870 INFO L175 Difference]: Start difference. First operand has 238 places, 301 transitions, 1806 flow. Second operand 28 states and 3708 transitions. [2022-11-20 12:50:16,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 707 transitions, 5411 flow [2022-11-20 12:50:17,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 707 transitions, 5365 flow, removed 8 selfloop flow, removed 8 redundant places. [2022-11-20 12:50:17,140 INFO L231 Difference]: Finished difference. Result has 270 places, 356 transitions, 2787 flow [2022-11-20 12:50:17,141 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} [2022-11-20 12:50:17,144 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 126 predicate places. [2022-11-20 12:50:17,144 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 356 transitions, 2787 flow [2022-11-20 12:50:17,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:50:17,145 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:50:17,146 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:17,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:50:17,146 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:50:17,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:17,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1564943207, now seen corresponding path program 2 times [2022-11-20 12:50:17,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:50:17,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137318523] [2022-11-20 12:50:17,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:17,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:50:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:18,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:50:18,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:50:18,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137318523] [2022-11-20 12:50:18,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137318523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:50:18,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:50:18,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 12:50:18,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823904611] [2022-11-20 12:50:18,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:18,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 12:50:18,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:50:18,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 12:50:18,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-11-20 12:50:18,435 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-20 12:50:18,437 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) [2022-11-20 12:50:18,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:50:18,438 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-20 12:50:18,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:50:26,406 INFO L130 PetriNetUnfolder]: 6991/22990 cut-off events. [2022-11-20 12:50:26,406 INFO L131 PetriNetUnfolder]: For 57883/67004 co-relation queries the response was YES. [2022-11-20 12:50:26,606 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. [2022-11-20 12:50:26,706 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 495 selfloop transitions, 125 changer transitions 2/752 dead transitions. [2022-11-20 12:50:26,706 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 752 transitions, 6792 flow [2022-11-20 12:50:26,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 12:50:26,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 12:50:26,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3713 transitions. [2022-11-20 12:50:26,715 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7665152766308836 [2022-11-20 12:50:26,715 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3713 transitions. [2022-11-20 12:50:26,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3713 transitions. [2022-11-20 12:50:26,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:50:26,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3713 transitions. [2022-11-20 12:50:26,729 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) [2022-11-20 12:50:26,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:50:26,739 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:50:26,739 INFO L175 Difference]: Start difference. First operand has 270 places, 356 transitions, 2787 flow. Second operand 28 states and 3713 transitions. [2022-11-20 12:50:26,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 752 transitions, 6792 flow [2022-11-20 12:50:27,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 752 transitions, 6660 flow, removed 39 selfloop flow, removed 13 redundant places. [2022-11-20 12:50:27,189 INFO L231 Difference]: Finished difference. Result has 296 places, 388 transitions, 3506 flow [2022-11-20 12:50:27,190 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} [2022-11-20 12:50:27,193 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 152 predicate places. [2022-11-20 12:50:27,193 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 388 transitions, 3506 flow [2022-11-20 12:50:27,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:50:27,195 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:50:27,195 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:27,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:50:27,195 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:50:27,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:27,196 INFO L85 PathProgramCache]: Analyzing trace with hash -2129808843, now seen corresponding path program 3 times [2022-11-20 12:50:27,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:50:27,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548039408] [2022-11-20 12:50:27,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:27,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:50:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:28,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:50:28,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:50:28,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548039408] [2022-11-20 12:50:28,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548039408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:50:28,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:50:28,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 12:50:28,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206512912] [2022-11-20 12:50:28,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:28,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 12:50:28,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:50:28,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 12:50:28,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-11-20 12:50:28,410 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-20 12:50:28,413 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) [2022-11-20 12:50:28,413 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:50:28,413 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-20 12:50:28,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:50:36,654 INFO L130 PetriNetUnfolder]: 7154/22585 cut-off events. [2022-11-20 12:50:36,654 INFO L131 PetriNetUnfolder]: For 72710/82496 co-relation queries the response was YES. [2022-11-20 12:50:36,894 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. [2022-11-20 12:50:36,979 INFO L137 encePairwiseOnDemand]: 155/173 looper letters, 467 selfloop transitions, 142 changer transitions 2/741 dead transitions. [2022-11-20 12:50:36,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 741 transitions, 7212 flow [2022-11-20 12:50:36,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 12:50:36,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 12:50:36,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3694 transitions. [2022-11-20 12:50:36,993 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7625928984310487 [2022-11-20 12:50:36,993 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3694 transitions. [2022-11-20 12:50:36,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3694 transitions. [2022-11-20 12:50:36,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:50:36,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3694 transitions. [2022-11-20 12:50:37,008 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) [2022-11-20 12:50:37,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:50:37,017 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:50:37,017 INFO L175 Difference]: Start difference. First operand has 296 places, 388 transitions, 3506 flow. Second operand 28 states and 3694 transitions. [2022-11-20 12:50:37,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 741 transitions, 7212 flow [2022-11-20 12:50:37,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 741 transitions, 6865 flow, removed 140 selfloop flow, removed 14 redundant places. [2022-11-20 12:50:37,484 INFO L231 Difference]: Finished difference. Result has 315 places, 406 transitions, 4065 flow [2022-11-20 12:50:37,485 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} [2022-11-20 12:50:37,485 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 171 predicate places. [2022-11-20 12:50:37,486 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 406 transitions, 4065 flow [2022-11-20 12:50:37,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:50:37,487 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:50:37,487 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:37,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:50:37,488 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:50:37,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:37,488 INFO L85 PathProgramCache]: Analyzing trace with hash -2114908497, now seen corresponding path program 4 times [2022-11-20 12:50:37,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:50:37,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264102719] [2022-11-20 12:50:37,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:37,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:50:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:38,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:50:38,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:50:38,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264102719] [2022-11-20 12:50:38,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264102719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:50:38,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:50:38,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 12:50:38,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231416461] [2022-11-20 12:50:38,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:38,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 12:50:38,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:50:38,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 12:50:38,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-11-20 12:50:38,686 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-20 12:50:38,689 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) [2022-11-20 12:50:38,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:50:38,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-20 12:50:38,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:50:47,446 INFO L130 PetriNetUnfolder]: 7574/23782 cut-off events. [2022-11-20 12:50:47,446 INFO L131 PetriNetUnfolder]: For 85075/96554 co-relation queries the response was YES. [2022-11-20 12:50:47,739 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. [2022-11-20 12:50:47,835 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 507 selfloop transitions, 150 changer transitions 2/789 dead transitions. [2022-11-20 12:50:47,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 789 transitions, 7941 flow [2022-11-20 12:50:47,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 12:50:47,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 12:50:47,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3712 transitions. [2022-11-20 12:50:47,843 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7663088356729976 [2022-11-20 12:50:47,843 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3712 transitions. [2022-11-20 12:50:47,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3712 transitions. [2022-11-20 12:50:47,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:50:47,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3712 transitions. [2022-11-20 12:50:47,855 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) [2022-11-20 12:50:47,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:50:47,865 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:50:47,866 INFO L175 Difference]: Start difference. First operand has 315 places, 406 transitions, 4065 flow. Second operand 28 states and 3712 transitions. [2022-11-20 12:50:47,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 789 transitions, 7941 flow [2022-11-20 12:50:48,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 789 transitions, 7737 flow, removed 8 selfloop flow, removed 20 redundant places. [2022-11-20 12:50:48,493 INFO L231 Difference]: Finished difference. Result has 332 places, 431 transitions, 4815 flow [2022-11-20 12:50:48,493 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} [2022-11-20 12:50:48,494 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 188 predicate places. [2022-11-20 12:50:48,494 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 431 transitions, 4815 flow [2022-11-20 12:50:48,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:50:48,495 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:50:48,495 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:48,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:50:48,496 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:50:48,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:48,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1582184111, now seen corresponding path program 5 times [2022-11-20 12:50:48,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:50:48,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864500605] [2022-11-20 12:50:48,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:48,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:50:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:49,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:50:49,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:50:49,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864500605] [2022-11-20 12:50:49,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864500605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:50:49,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:50:49,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 12:50:49,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775116154] [2022-11-20 12:50:49,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:49,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 12:50:49,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:50:49,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 12:50:49,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-11-20 12:50:49,719 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-20 12:50:49,721 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) [2022-11-20 12:50:49,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:50:49,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-20 12:50:49,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:50:58,053 INFO L130 PetriNetUnfolder]: 6464/21029 cut-off events. [2022-11-20 12:50:58,054 INFO L131 PetriNetUnfolder]: For 82680/91199 co-relation queries the response was YES. [2022-11-20 12:50:58,614 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. [2022-11-20 12:50:58,664 INFO L137 encePairwiseOnDemand]: 155/173 looper letters, 482 selfloop transitions, 150 changer transitions 0/762 dead transitions. [2022-11-20 12:50:58,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 762 transitions, 8034 flow [2022-11-20 12:50:58,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 12:50:58,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 12:50:58,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3697 transitions. [2022-11-20 12:50:58,670 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7632122213047069 [2022-11-20 12:50:58,670 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3697 transitions. [2022-11-20 12:50:58,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3697 transitions. [2022-11-20 12:50:58,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:50:58,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3697 transitions. [2022-11-20 12:50:58,678 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) [2022-11-20 12:50:58,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:50:58,686 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:50:58,686 INFO L175 Difference]: Start difference. First operand has 332 places, 431 transitions, 4815 flow. Second operand 28 states and 3697 transitions. [2022-11-20 12:50:58,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 762 transitions, 8034 flow [2022-11-20 12:50:59,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 762 transitions, 7852 flow, removed 43 selfloop flow, removed 16 redundant places. [2022-11-20 12:50:59,184 INFO L231 Difference]: Finished difference. Result has 351 places, 438 transitions, 5200 flow [2022-11-20 12:50:59,185 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} [2022-11-20 12:50:59,185 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 207 predicate places. [2022-11-20 12:50:59,186 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 438 transitions, 5200 flow [2022-11-20 12:50:59,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:50:59,187 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:50:59,187 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:59,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:50:59,187 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:50:59,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:59,188 INFO L85 PathProgramCache]: Analyzing trace with hash -194631437, now seen corresponding path program 6 times [2022-11-20 12:50:59,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:50:59,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821471310] [2022-11-20 12:50:59,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:59,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:50:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:51:00,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:51:00,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:51:00,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821471310] [2022-11-20 12:51:00,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821471310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:51:00,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:51:00,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-20 12:51:00,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802819644] [2022-11-20 12:51:00,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:51:00,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 12:51:00,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:51:00,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 12:51:00,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:51:00,064 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-20 12:51:00,065 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) [2022-11-20 12:51:00,065 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:51:00,066 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-20 12:51:00,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:51:09,699 INFO L130 PetriNetUnfolder]: 8979/27945 cut-off events. [2022-11-20 12:51:09,699 INFO L131 PetriNetUnfolder]: For 108664/124340 co-relation queries the response was YES. [2022-11-20 12:51:10,132 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. [2022-11-20 12:51:10,200 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 505 selfloop transitions, 223 changer transitions 4/862 dead transitions. [2022-11-20 12:51:10,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 862 transitions, 9788 flow [2022-11-20 12:51:10,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 12:51:10,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 12:51:10,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3707 transitions. [2022-11-20 12:51:10,205 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7652766308835673 [2022-11-20 12:51:10,205 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3707 transitions. [2022-11-20 12:51:10,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3707 transitions. [2022-11-20 12:51:10,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:51:10,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3707 transitions. [2022-11-20 12:51:10,212 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) [2022-11-20 12:51:10,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:51:10,219 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:51:10,220 INFO L175 Difference]: Start difference. First operand has 351 places, 438 transitions, 5200 flow. Second operand 28 states and 3707 transitions. [2022-11-20 12:51:10,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 862 transitions, 9788 flow [2022-11-20 12:51:11,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 862 transitions, 9501 flow, removed 37 selfloop flow, removed 18 redundant places. [2022-11-20 12:51:11,436 INFO L231 Difference]: Finished difference. Result has 375 places, 502 transitions, 6767 flow [2022-11-20 12:51:11,437 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} [2022-11-20 12:51:11,437 INFO L288 CegarLoopForPetriNet]: 144 programPoint places, 231 predicate places. [2022-11-20 12:51:11,438 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 502 transitions, 6767 flow [2022-11-20 12:51:11,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:51:11,438 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:51:11,439 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:51:11,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:51:11,439 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:51:11,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:51:11,440 INFO L85 PathProgramCache]: Analyzing trace with hash -384588399, now seen corresponding path program 7 times [2022-11-20 12:51:11,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:51:11,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413767231] [2022-11-20 12:51:11,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:51:11,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:51:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:51:12,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:51:12,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:51:12,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413767231] [2022-11-20 12:51:12,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413767231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:51:12,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:51:12,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 12:51:12,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930970537] [2022-11-20 12:51:12,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:51:12,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 12:51:12,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:51:12,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 12:51:12,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-11-20 12:51:12,458 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-11-20 12:51:12,460 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) [2022-11-20 12:51:12,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:51:12,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-11-20 12:51:12,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand