./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89253919-94da-4bfd-b1b8-84418f8b6f5e/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89253919-94da-4bfd-b1b8-84418f8b6f5e/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89253919-94da-4bfd-b1b8-84418f8b6f5e/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89253919-94da-4bfd-b1b8-84418f8b6f5e/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89253919-94da-4bfd-b1b8-84418f8b6f5e/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89253919-94da-4bfd-b1b8-84418f8b6f5e/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:35:56,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:35:56,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:35:56,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:35:56,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:35:56,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:35:56,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:35:56,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:35:56,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:35:56,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:35:56,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:35:56,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:35:56,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:35:56,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:35:56,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:35:56,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:35:56,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:35:56,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:35:56,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:35:56,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:35:56,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:35:56,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:35:56,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:35:56,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:35:56,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:35:56,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:35:56,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:35:56,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:35:56,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:35:56,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:35:56,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:35:56,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:35:56,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:35:56,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:35:56,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:35:56,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:35:56,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:35:56,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:35:56,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:35:56,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:35:56,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:35:56,228 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89253919-94da-4bfd-b1b8-84418f8b6f5e/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:35:56,276 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:35:56,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:35:56,277 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:35:56,277 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:35:56,278 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:35:56,279 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:35:56,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:35:56,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:35:56,280 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:35:56,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:35:56,282 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:35:56,283 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:35:56,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:35:56,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:35:56,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:35:56,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:35:56,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:35:56,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:35:56,285 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:35:56,285 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:35:56,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:35:56,286 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:35:56,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:35:56,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:35:56,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:35:56,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:35:56,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:35:56,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:35:56,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:35:56,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:35:56,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:35:56,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:35:56,290 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:35:56,291 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:35:56,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:35:56,291 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_89253919-94da-4bfd-b1b8-84418f8b6f5e/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89253919-94da-4bfd-b1b8-84418f8b6f5e/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 [2022-11-18 20:35:56,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:35:56,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:35:56,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:35:56,682 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:35:56,683 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:35:56,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89253919-94da-4bfd-b1b8-84418f8b6f5e/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-11-18 20:35:56,762 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89253919-94da-4bfd-b1b8-84418f8b6f5e/bin/uautomizer-TMbwUNV5ro/data/f2766d690/d0b8a8b7061143bdb392fefa109aeba3/FLAG5852949f4 [2022-11-18 20:35:57,617 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:35:57,618 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89253919-94da-4bfd-b1b8-84418f8b6f5e/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-11-18 20:35:57,648 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89253919-94da-4bfd-b1b8-84418f8b6f5e/bin/uautomizer-TMbwUNV5ro/data/f2766d690/d0b8a8b7061143bdb392fefa109aeba3/FLAG5852949f4 [2022-11-18 20:35:57,762 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89253919-94da-4bfd-b1b8-84418f8b6f5e/bin/uautomizer-TMbwUNV5ro/data/f2766d690/d0b8a8b7061143bdb392fefa109aeba3 [2022-11-18 20:35:57,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:35:57,767 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:35:57,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:35:57,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:35:57,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:35:57,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:35:57" (1/1) ... [2022-11-18 20:35:57,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2706250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:57, skipping insertion in model container [2022-11-18 20:35:57,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:35:57" (1/1) ... [2022-11-18 20:35:57,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:35:57,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:35:58,135 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 20:35:59,104 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89253919-94da-4bfd-b1b8-84418f8b6f5e/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-11-18 20:35:59,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:35:59,175 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:35:59,192 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 20:35:59,224 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89253919-94da-4bfd-b1b8-84418f8b6f5e/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-11-18 20:35:59,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:35:59,346 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:35:59,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:59 WrapperNode [2022-11-18 20:35:59,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:35:59,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:35:59,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:35:59,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:35:59,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:59" (1/1) ... [2022-11-18 20:35:59,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:59" (1/1) ... [2022-11-18 20:35:59,420 INFO L138 Inliner]: procedures = 468, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 115 [2022-11-18 20:35:59,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:35:59,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:35:59,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:35:59,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:35:59,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:59" (1/1) ... [2022-11-18 20:35:59,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:59" (1/1) ... [2022-11-18 20:35:59,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:59" (1/1) ... [2022-11-18 20:35:59,440 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:59" (1/1) ... [2022-11-18 20:35:59,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:59" (1/1) ... [2022-11-18 20:35:59,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:59" (1/1) ... [2022-11-18 20:35:59,481 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:59" (1/1) ... [2022-11-18 20:35:59,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:59" (1/1) ... [2022-11-18 20:35:59,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:35:59,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:35:59,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:35:59,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:35:59,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:59" (1/1) ... [2022-11-18 20:35:59,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:35:59,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89253919-94da-4bfd-b1b8-84418f8b6f5e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:59,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89253919-94da-4bfd-b1b8-84418f8b6f5e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:35:59,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89253919-94da-4bfd-b1b8-84418f8b6f5e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:35:59,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:35:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:35:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:35:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:35:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:35:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:35:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:35:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:35:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-18 20:35:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-18 20:35:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:35:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:35:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:35:59,605 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:36:00,098 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:36:00,101 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:36:00,497 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:36:00,540 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:36:00,540 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:36:00,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:36:00 BoogieIcfgContainer [2022-11-18 20:36:00,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:36:00,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:36:00,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:36:00,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:36:00,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:35:57" (1/3) ... [2022-11-18 20:36:00,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f758a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:36:00, skipping insertion in model container [2022-11-18 20:36:00,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:59" (2/3) ... [2022-11-18 20:36:00,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f758a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:36:00, skipping insertion in model container [2022-11-18 20:36:00,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:36:00" (3/3) ... [2022-11-18 20:36:00,556 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2022-11-18 20:36:00,566 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:36:00,579 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:36:00,580 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 20:36:00,580 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:36:00,702 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 20:36:00,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 163 transitions, 342 flow [2022-11-18 20:36:00,898 INFO L130 PetriNetUnfolder]: 8/206 cut-off events. [2022-11-18 20:36:00,899 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:36:00,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 206 events. 8/206 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 337 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 113. Up to 4 conditions per place. [2022-11-18 20:36:00,905 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 163 transitions, 342 flow [2022-11-18 20:36:00,911 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 129 transitions, 267 flow [2022-11-18 20:36:00,922 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:36:00,928 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;@20691e28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:36:00,929 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 20:36:00,948 INFO L130 PetriNetUnfolder]: 0/63 cut-off events. [2022-11-18 20:36:00,948 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:36:00,949 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:36:00,949 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] [2022-11-18 20:36:00,950 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:36:00,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:00,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1648225963, now seen corresponding path program 1 times [2022-11-18 20:36:00,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:00,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001586603] [2022-11-18 20:36:00,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:00,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:03,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:36:03,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:03,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001586603] [2022-11-18 20:36:03,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001586603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:03,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:03,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-18 20:36:03,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426256113] [2022-11-18 20:36:03,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:03,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 20:36:03,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:03,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 20:36:03,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:36:03,597 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 163 [2022-11-18 20:36:03,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 129 transitions, 267 flow. Second operand has 15 states, 15 states have (on average 110.6) internal successors, (1659), 15 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:03,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:36:03,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 163 [2022-11-18 20:36:03,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:36:05,886 INFO L130 PetriNetUnfolder]: 835/3167 cut-off events. [2022-11-18 20:36:05,886 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-11-18 20:36:05,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4631 conditions, 3167 events. 835/3167 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 28080 event pairs, 546 based on Foata normal form. 130/2858 useless extension candidates. Maximal degree in co-relation 4422. Up to 1046 conditions per place. [2022-11-18 20:36:05,926 INFO L137 encePairwiseOnDemand]: 143/163 looper letters, 67 selfloop transitions, 23 changer transitions 2/175 dead transitions. [2022-11-18 20:36:05,926 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 175 transitions, 549 flow [2022-11-18 20:36:05,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 20:36:05,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-18 20:36:05,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2064 transitions. [2022-11-18 20:36:05,955 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7034764826175869 [2022-11-18 20:36:05,956 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2064 transitions. [2022-11-18 20:36:05,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2064 transitions. [2022-11-18 20:36:05,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:36:05,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2064 transitions. [2022-11-18 20:36:05,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 114.66666666666667) internal successors, (2064), 18 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:05,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 163.0) internal successors, (3097), 19 states have internal predecessors, (3097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:05,993 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 163.0) internal successors, (3097), 19 states have internal predecessors, (3097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:05,996 INFO L175 Difference]: Start difference. First operand has 134 places, 129 transitions, 267 flow. Second operand 18 states and 2064 transitions. [2022-11-18 20:36:05,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 175 transitions, 549 flow [2022-11-18 20:36:06,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 175 transitions, 541 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:36:06,010 INFO L231 Difference]: Finished difference. Result has 155 places, 140 transitions, 383 flow [2022-11-18 20:36:06,013 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=383, PETRI_PLACES=155, PETRI_TRANSITIONS=140} [2022-11-18 20:36:06,018 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 21 predicate places. [2022-11-18 20:36:06,019 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 140 transitions, 383 flow [2022-11-18 20:36:06,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 110.6) internal successors, (1659), 15 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:06,020 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:36:06,021 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] [2022-11-18 20:36:06,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:36:06,022 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:36:06,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:06,024 INFO L85 PathProgramCache]: Analyzing trace with hash -689523701, now seen corresponding path program 1 times [2022-11-18 20:36:06,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:06,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979046230] [2022-11-18 20:36:06,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:06,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:07,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:36:07,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:07,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979046230] [2022-11-18 20:36:07,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979046230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:07,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:07,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-18 20:36:07,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487253348] [2022-11-18 20:36:07,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:07,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:36:07,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:07,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:36:07,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:36:07,604 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 163 [2022-11-18 20:36:07,607 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 140 transitions, 383 flow. Second operand has 19 states, 19 states have (on average 101.63157894736842) internal successors, (1931), 19 states have internal predecessors, (1931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:07,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:36:07,608 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 163 [2022-11-18 20:36:07,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:36:10,326 INFO L130 PetriNetUnfolder]: 1200/4026 cut-off events. [2022-11-18 20:36:10,326 INFO L131 PetriNetUnfolder]: For 1045/1054 co-relation queries the response was YES. [2022-11-18 20:36:10,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7021 conditions, 4026 events. 1200/4026 cut-off events. For 1045/1054 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 36015 event pairs, 690 based on Foata normal form. 57/3580 useless extension candidates. Maximal degree in co-relation 6458. Up to 1299 conditions per place. [2022-11-18 20:36:10,357 INFO L137 encePairwiseOnDemand]: 140/163 looper letters, 106 selfloop transitions, 45 changer transitions 2/228 dead transitions. [2022-11-18 20:36:10,357 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 228 transitions, 930 flow [2022-11-18 20:36:10,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:36:10,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:36:10,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2251 transitions. [2022-11-18 20:36:10,365 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6576102833771545 [2022-11-18 20:36:10,365 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2251 transitions. [2022-11-18 20:36:10,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2251 transitions. [2022-11-18 20:36:10,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:36:10,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2251 transitions. [2022-11-18 20:36:10,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 107.19047619047619) internal successors, (2251), 21 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:10,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 163.0) internal successors, (3586), 22 states have internal predecessors, (3586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:10,383 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 163.0) internal successors, (3586), 22 states have internal predecessors, (3586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:10,384 INFO L175 Difference]: Start difference. First operand has 155 places, 140 transitions, 383 flow. Second operand 21 states and 2251 transitions. [2022-11-18 20:36:10,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 228 transitions, 930 flow [2022-11-18 20:36:10,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 228 transitions, 919 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 20:36:10,402 INFO L231 Difference]: Finished difference. Result has 178 places, 167 transitions, 629 flow [2022-11-18 20:36:10,403 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=629, PETRI_PLACES=178, PETRI_TRANSITIONS=167} [2022-11-18 20:36:10,404 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 44 predicate places. [2022-11-18 20:36:10,404 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 167 transitions, 629 flow [2022-11-18 20:36:10,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 101.63157894736842) internal successors, (1931), 19 states have internal predecessors, (1931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:10,406 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:36:10,406 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] [2022-11-18 20:36:10,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:36:10,407 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:36:10,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:10,410 INFO L85 PathProgramCache]: Analyzing trace with hash -641521751, now seen corresponding path program 2 times [2022-11-18 20:36:10,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:10,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576234124] [2022-11-18 20:36:10,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:10,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:11,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:36:11,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:11,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576234124] [2022-11-18 20:36:11,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576234124] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:11,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:11,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 20:36:11,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284811317] [2022-11-18 20:36:11,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:11,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:36:11,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:11,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:36:11,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:36:11,827 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 163 [2022-11-18 20:36:11,830 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 167 transitions, 629 flow. Second operand has 18 states, 18 states have (on average 101.72222222222223) internal successors, (1831), 18 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:11,830 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:36:11,830 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 163 [2022-11-18 20:36:11,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:36:14,477 INFO L130 PetriNetUnfolder]: 1299/4450 cut-off events. [2022-11-18 20:36:14,478 INFO L131 PetriNetUnfolder]: For 4020/4295 co-relation queries the response was YES. [2022-11-18 20:36:14,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8975 conditions, 4450 events. 1299/4450 cut-off events. For 4020/4295 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 41160 event pairs, 577 based on Foata normal form. 117/4022 useless extension candidates. Maximal degree in co-relation 8316. Up to 1227 conditions per place. [2022-11-18 20:36:14,523 INFO L137 encePairwiseOnDemand]: 142/163 looper letters, 112 selfloop transitions, 52 changer transitions 2/241 dead transitions. [2022-11-18 20:36:14,523 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 241 transitions, 1222 flow [2022-11-18 20:36:14,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 20:36:14,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 20:36:14,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2149 transitions. [2022-11-18 20:36:14,534 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.65920245398773 [2022-11-18 20:36:14,534 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2149 transitions. [2022-11-18 20:36:14,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2149 transitions. [2022-11-18 20:36:14,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:36:14,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2149 transitions. [2022-11-18 20:36:14,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 107.45) internal successors, (2149), 20 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:14,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 163.0) internal successors, (3423), 21 states have internal predecessors, (3423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:14,555 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 163.0) internal successors, (3423), 21 states have internal predecessors, (3423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:14,555 INFO L175 Difference]: Start difference. First operand has 178 places, 167 transitions, 629 flow. Second operand 20 states and 2149 transitions. [2022-11-18 20:36:14,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 241 transitions, 1222 flow [2022-11-18 20:36:14,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 241 transitions, 1143 flow, removed 29 selfloop flow, removed 11 redundant places. [2022-11-18 20:36:14,582 INFO L231 Difference]: Finished difference. Result has 190 places, 178 transitions, 799 flow [2022-11-18 20:36:14,583 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=799, PETRI_PLACES=190, PETRI_TRANSITIONS=178} [2022-11-18 20:36:14,585 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 56 predicate places. [2022-11-18 20:36:14,586 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 178 transitions, 799 flow [2022-11-18 20:36:14,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 101.72222222222223) internal successors, (1831), 18 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:14,587 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:36:14,587 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] [2022-11-18 20:36:14,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:36:14,588 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:36:14,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:14,589 INFO L85 PathProgramCache]: Analyzing trace with hash -782986223, now seen corresponding path program 1 times [2022-11-18 20:36:14,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:14,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344985882] [2022-11-18 20:36:14,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:14,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:15,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:36:15,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:15,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344985882] [2022-11-18 20:36:15,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344985882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:15,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:15,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-18 20:36:15,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188613027] [2022-11-18 20:36:15,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:15,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:36:15,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:15,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:36:15,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:36:15,762 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 163 [2022-11-18 20:36:15,764 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 178 transitions, 799 flow. Second operand has 19 states, 19 states have (on average 101.6842105263158) internal successors, (1932), 19 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:15,765 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:36:15,765 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 163 [2022-11-18 20:36:15,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:36:18,598 INFO L130 PetriNetUnfolder]: 2336/8569 cut-off events. [2022-11-18 20:36:18,599 INFO L131 PetriNetUnfolder]: For 7861/14835 co-relation queries the response was YES. [2022-11-18 20:36:18,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17114 conditions, 8569 events. 2336/8569 cut-off events. For 7861/14835 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 92893 event pairs, 855 based on Foata normal form. 173/7847 useless extension candidates. Maximal degree in co-relation 16187. Up to 3160 conditions per place. [2022-11-18 20:36:18,671 INFO L137 encePairwiseOnDemand]: 141/163 looper letters, 118 selfloop transitions, 74 changer transitions 5/280 dead transitions. [2022-11-18 20:36:18,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 280 transitions, 1709 flow [2022-11-18 20:36:18,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:36:18,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:36:18,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2238 transitions. [2022-11-18 20:36:18,683 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6538124452234881 [2022-11-18 20:36:18,683 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2238 transitions. [2022-11-18 20:36:18,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2238 transitions. [2022-11-18 20:36:18,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:36:18,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2238 transitions. [2022-11-18 20:36:18,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 106.57142857142857) internal successors, (2238), 21 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:18,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 163.0) internal successors, (3586), 22 states have internal predecessors, (3586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:18,709 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 163.0) internal successors, (3586), 22 states have internal predecessors, (3586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:18,709 INFO L175 Difference]: Start difference. First operand has 190 places, 178 transitions, 799 flow. Second operand 21 states and 2238 transitions. [2022-11-18 20:36:18,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 280 transitions, 1709 flow [2022-11-18 20:36:18,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 280 transitions, 1615 flow, removed 24 selfloop flow, removed 12 redundant places. [2022-11-18 20:36:18,754 INFO L231 Difference]: Finished difference. Result has 207 places, 224 transitions, 1299 flow [2022-11-18 20:36:18,760 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=751, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1299, PETRI_PLACES=207, PETRI_TRANSITIONS=224} [2022-11-18 20:36:18,762 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 73 predicate places. [2022-11-18 20:36:18,762 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 224 transitions, 1299 flow [2022-11-18 20:36:18,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 101.6842105263158) internal successors, (1932), 19 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:18,763 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:36:18,764 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:36:18,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:36:18,764 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:36:18,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:18,765 INFO L85 PathProgramCache]: Analyzing trace with hash 20248238, now seen corresponding path program 1 times [2022-11-18 20:36:18,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:18,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605729817] [2022-11-18 20:36:18,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:18,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:20,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:36:20,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:20,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605729817] [2022-11-18 20:36:20,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605729817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:20,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:20,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-18 20:36:20,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150048345] [2022-11-18 20:36:20,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:20,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:36:20,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:20,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:36:20,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:36:20,545 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-18 20:36:20,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 224 transitions, 1299 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:20,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:36:20,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-18 20:36:20,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:36:28,506 INFO L130 PetriNetUnfolder]: 3260/10289 cut-off events. [2022-11-18 20:36:28,506 INFO L131 PetriNetUnfolder]: For 12543/20804 co-relation queries the response was YES. [2022-11-18 20:36:28,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24014 conditions, 10289 events. 3260/10289 cut-off events. For 12543/20804 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 107458 event pairs, 843 based on Foata normal form. 433/9940 useless extension candidates. Maximal degree in co-relation 22626. Up to 2360 conditions per place. [2022-11-18 20:36:28,569 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 229 selfloop transitions, 163 changer transitions 4/466 dead transitions. [2022-11-18 20:36:28,569 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 466 transitions, 3353 flow [2022-11-18 20:36:28,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-18 20:36:28,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-11-18 20:36:28,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3724 transitions. [2022-11-18 20:36:28,579 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.634628493524199 [2022-11-18 20:36:28,579 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 3724 transitions. [2022-11-18 20:36:28,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 3724 transitions. [2022-11-18 20:36:28,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:36:28,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 3724 transitions. [2022-11-18 20:36:28,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 103.44444444444444) internal successors, (3724), 36 states have internal predecessors, (3724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:28,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 163.0) internal successors, (6031), 37 states have internal predecessors, (6031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:28,603 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 163.0) internal successors, (6031), 37 states have internal predecessors, (6031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:28,603 INFO L175 Difference]: Start difference. First operand has 207 places, 224 transitions, 1299 flow. Second operand 36 states and 3724 transitions. [2022-11-18 20:36:28,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 466 transitions, 3353 flow [2022-11-18 20:36:28,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 466 transitions, 3286 flow, removed 26 selfloop flow, removed 8 redundant places. [2022-11-18 20:36:28,682 INFO L231 Difference]: Finished difference. Result has 253 places, 304 transitions, 2510 flow [2022-11-18 20:36:28,683 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=1258, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=2510, PETRI_PLACES=253, PETRI_TRANSITIONS=304} [2022-11-18 20:36:28,685 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 119 predicate places. [2022-11-18 20:36:28,685 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 304 transitions, 2510 flow [2022-11-18 20:36:28,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:28,686 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:36:28,687 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:36:28,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:36:28,687 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:36:28,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:28,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1794086476, now seen corresponding path program 1 times [2022-11-18 20:36:28,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:28,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561627137] [2022-11-18 20:36:28,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:28,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:30,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:36:30,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:30,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561627137] [2022-11-18 20:36:30,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561627137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:30,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:30,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-18 20:36:30,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355247964] [2022-11-18 20:36:30,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:30,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 20:36:30,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:30,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 20:36:30,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2022-11-18 20:36:30,365 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-18 20:36:30,368 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 304 transitions, 2510 flow. Second operand has 23 states, 23 states have (on average 96.65217391304348) internal successors, (2223), 23 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:30,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:36:30,368 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-18 20:36:30,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:36:41,159 INFO L130 PetriNetUnfolder]: 3753/12073 cut-off events. [2022-11-18 20:36:41,159 INFO L131 PetriNetUnfolder]: For 33080/45930 co-relation queries the response was YES. [2022-11-18 20:36:41,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33082 conditions, 12073 events. 3753/12073 cut-off events. For 33080/45930 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 131433 event pairs, 961 based on Foata normal form. 1187/12327 useless extension candidates. Maximal degree in co-relation 31454. Up to 3399 conditions per place. [2022-11-18 20:36:41,324 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 298 selfloop transitions, 231 changer transitions 17/616 dead transitions. [2022-11-18 20:36:41,324 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 616 transitions, 5644 flow [2022-11-18 20:36:41,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 20:36:41,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-11-18 20:36:41,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 4641 transitions. [2022-11-18 20:36:41,334 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.632719836400818 [2022-11-18 20:36:41,334 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 4641 transitions. [2022-11-18 20:36:41,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 4641 transitions. [2022-11-18 20:36:41,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:36:41,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 4641 transitions. [2022-11-18 20:36:41,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 103.13333333333334) internal successors, (4641), 45 states have internal predecessors, (4641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:41,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 163.0) internal successors, (7498), 46 states have internal predecessors, (7498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:41,371 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 163.0) internal successors, (7498), 46 states have internal predecessors, (7498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:41,371 INFO L175 Difference]: Start difference. First operand has 253 places, 304 transitions, 2510 flow. Second operand 45 states and 4641 transitions. [2022-11-18 20:36:41,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 616 transitions, 5644 flow [2022-11-18 20:36:41,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 616 transitions, 5389 flow, removed 53 selfloop flow, removed 16 redundant places. [2022-11-18 20:36:41,539 INFO L231 Difference]: Finished difference. Result has 295 places, 410 transitions, 4159 flow [2022-11-18 20:36:41,540 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=2357, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=4159, PETRI_PLACES=295, PETRI_TRANSITIONS=410} [2022-11-18 20:36:41,542 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 161 predicate places. [2022-11-18 20:36:41,542 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 410 transitions, 4159 flow [2022-11-18 20:36:41,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 96.65217391304348) internal successors, (2223), 23 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:41,543 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:36:41,543 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:36:41,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:36:41,544 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:36:41,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:41,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1422956285, now seen corresponding path program 1 times [2022-11-18 20:36:41,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:41,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611700199] [2022-11-18 20:36:41,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:41,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:43,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:36:43,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:43,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611700199] [2022-11-18 20:36:43,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611700199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:43,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:43,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-18 20:36:43,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199540467] [2022-11-18 20:36:43,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:43,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:36:43,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:43,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:36:43,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:36:43,214 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-18 20:36:43,218 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 410 transitions, 4159 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:43,218 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:36:43,218 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-18 20:36:43,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:36:54,160 INFO L130 PetriNetUnfolder]: 3987/12539 cut-off events. [2022-11-18 20:36:54,160 INFO L131 PetriNetUnfolder]: For 50078/82109 co-relation queries the response was YES. [2022-11-18 20:36:54,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39146 conditions, 12539 events. 3987/12539 cut-off events. For 50078/82109 co-relation queries the response was YES. Maximal size of possible extension queue 472. Compared 136100 event pairs, 1057 based on Foata normal form. 1545/13100 useless extension candidates. Maximal degree in co-relation 37277. Up to 3697 conditions per place. [2022-11-18 20:36:54,389 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 284 selfloop transitions, 280 changer transitions 16/650 dead transitions. [2022-11-18 20:36:54,390 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 650 transitions, 6791 flow [2022-11-18 20:36:54,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-18 20:36:54,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2022-11-18 20:36:54,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 5217 transitions. [2022-11-18 20:36:54,403 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6275712739083363 [2022-11-18 20:36:54,404 INFO L72 ComplementDD]: Start complementDD. Operand 51 states and 5217 transitions. [2022-11-18 20:36:54,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 5217 transitions. [2022-11-18 20:36:54,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:36:54,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 51 states and 5217 transitions. [2022-11-18 20:36:54,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 52 states, 51 states have (on average 102.29411764705883) internal successors, (5217), 51 states have internal predecessors, (5217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:54,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 52 states, 52 states have (on average 163.0) internal successors, (8476), 52 states have internal predecessors, (8476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:54,438 INFO L81 ComplementDD]: Finished complementDD. Result has 52 states, 52 states have (on average 163.0) internal successors, (8476), 52 states have internal predecessors, (8476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:54,438 INFO L175 Difference]: Start difference. First operand has 295 places, 410 transitions, 4159 flow. Second operand 51 states and 5217 transitions. [2022-11-18 20:36:54,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 650 transitions, 6791 flow [2022-11-18 20:36:54,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 650 transitions, 6619 flow, removed 64 selfloop flow, removed 11 redundant places. [2022-11-18 20:36:54,763 INFO L231 Difference]: Finished difference. Result has 341 places, 452 transitions, 5289 flow [2022-11-18 20:36:54,764 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=3995, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=238, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=5289, PETRI_PLACES=341, PETRI_TRANSITIONS=452} [2022-11-18 20:36:54,766 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 207 predicate places. [2022-11-18 20:36:54,766 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 452 transitions, 5289 flow [2022-11-18 20:36:54,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:54,767 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:36:54,767 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:36:54,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:36:54,768 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:36:54,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:36:54,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1954060821, now seen corresponding path program 2 times [2022-11-18 20:36:54,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:36:54,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377409480] [2022-11-18 20:36:54,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:36:54,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:36:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:36:56,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:36:56,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:36:56,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377409480] [2022-11-18 20:36:56,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377409480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:36:56,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:36:56,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-18 20:36:56,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584636580] [2022-11-18 20:36:56,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:36:56,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:36:56,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:36:56,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:36:56,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:36:56,758 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-18 20:36:56,760 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 452 transitions, 5289 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:36:56,760 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:36:56,760 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-18 20:36:56,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:37:02,973 INFO L130 PetriNetUnfolder]: 4311/13548 cut-off events. [2022-11-18 20:37:02,973 INFO L131 PetriNetUnfolder]: For 71729/146139 co-relation queries the response was YES. [2022-11-18 20:37:03,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44950 conditions, 13548 events. 4311/13548 cut-off events. For 71729/146139 co-relation queries the response was YES. Maximal size of possible extension queue 508. Compared 148984 event pairs, 1371 based on Foata normal form. 1494/13903 useless extension candidates. Maximal degree in co-relation 43017. Up to 4282 conditions per place. [2022-11-18 20:37:03,101 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 229 selfloop transitions, 283 changer transitions 16/598 dead transitions. [2022-11-18 20:37:03,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 598 transitions, 7628 flow [2022-11-18 20:37:03,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-18 20:37:03,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-18 20:37:03,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2701 transitions. [2022-11-18 20:37:03,107 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6373289287399717 [2022-11-18 20:37:03,107 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2701 transitions. [2022-11-18 20:37:03,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2701 transitions. [2022-11-18 20:37:03,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:37:03,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2701 transitions. [2022-11-18 20:37:03,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 103.88461538461539) internal successors, (2701), 26 states have internal predecessors, (2701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:03,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 163.0) internal successors, (4401), 27 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:03,121 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 163.0) internal successors, (4401), 27 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:03,121 INFO L175 Difference]: Start difference. First operand has 341 places, 452 transitions, 5289 flow. Second operand 26 states and 2701 transitions. [2022-11-18 20:37:03,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 598 transitions, 7628 flow [2022-11-18 20:37:03,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 598 transitions, 7197 flow, removed 37 selfloop flow, removed 46 redundant places. [2022-11-18 20:37:03,542 INFO L231 Difference]: Finished difference. Result has 326 places, 490 transitions, 6204 flow [2022-11-18 20:37:03,542 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=4881, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=245, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=6204, PETRI_PLACES=326, PETRI_TRANSITIONS=490} [2022-11-18 20:37:03,544 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 192 predicate places. [2022-11-18 20:37:03,545 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 490 transitions, 6204 flow [2022-11-18 20:37:03,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:03,546 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:37:03,546 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:03,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:37:03,546 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:37:03,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:03,547 INFO L85 PathProgramCache]: Analyzing trace with hash -266638708, now seen corresponding path program 2 times [2022-11-18 20:37:03,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:03,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292094084] [2022-11-18 20:37:03,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:03,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:03,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:05,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:37:05,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:05,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292094084] [2022-11-18 20:37:05,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292094084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:05,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:37:05,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-18 20:37:05,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083498933] [2022-11-18 20:37:05,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:05,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:37:05,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:05,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:37:05,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:37:05,202 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-18 20:37:05,204 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 490 transitions, 6204 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:05,204 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:37:05,204 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-18 20:37:05,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:37:12,294 INFO L130 PetriNetUnfolder]: 4482/14023 cut-off events. [2022-11-18 20:37:12,294 INFO L131 PetriNetUnfolder]: For 93481/237473 co-relation queries the response was YES. [2022-11-18 20:37:12,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48749 conditions, 14023 events. 4482/14023 cut-off events. For 93481/237473 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 155548 event pairs, 1345 based on Foata normal form. 1764/14598 useless extension candidates. Maximal degree in co-relation 46832. Up to 4322 conditions per place. [2022-11-18 20:37:12,419 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 226 selfloop transitions, 309 changer transitions 16/621 dead transitions. [2022-11-18 20:37:12,419 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 621 transitions, 8468 flow [2022-11-18 20:37:12,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-18 20:37:12,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-18 20:37:12,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2699 transitions. [2022-11-18 20:37:12,425 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6368570080226522 [2022-11-18 20:37:12,425 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2699 transitions. [2022-11-18 20:37:12,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2699 transitions. [2022-11-18 20:37:12,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:37:12,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2699 transitions. [2022-11-18 20:37:12,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 103.8076923076923) internal successors, (2699), 26 states have internal predecessors, (2699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:12,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 163.0) internal successors, (4401), 27 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:12,437 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 163.0) internal successors, (4401), 27 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:12,438 INFO L175 Difference]: Start difference. First operand has 326 places, 490 transitions, 6204 flow. Second operand 26 states and 2699 transitions. [2022-11-18 20:37:12,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 621 transitions, 8468 flow [2022-11-18 20:37:12,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 621 transitions, 8189 flow, removed 71 selfloop flow, removed 15 redundant places. [2022-11-18 20:37:12,921 INFO L231 Difference]: Finished difference. Result has 341 places, 516 transitions, 7195 flow [2022-11-18 20:37:12,921 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=5985, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=283, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=7195, PETRI_PLACES=341, PETRI_TRANSITIONS=516} [2022-11-18 20:37:12,922 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 207 predicate places. [2022-11-18 20:37:12,922 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 516 transitions, 7195 flow [2022-11-18 20:37:12,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:12,923 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:37:12,923 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:12,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:37:12,924 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:37:12,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:12,924 INFO L85 PathProgramCache]: Analyzing trace with hash 20248622, now seen corresponding path program 3 times [2022-11-18 20:37:12,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:12,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794791628] [2022-11-18 20:37:12,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:12,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:14,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:37:14,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:14,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794791628] [2022-11-18 20:37:14,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794791628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:14,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:37:14,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-18 20:37:14,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138860046] [2022-11-18 20:37:14,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:14,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:37:14,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:14,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:37:14,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:37:14,557 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-18 20:37:14,559 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 516 transitions, 7195 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:14,559 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:37:14,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-18 20:37:14,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:37:22,345 INFO L130 PetriNetUnfolder]: 4473/14216 cut-off events. [2022-11-18 20:37:22,346 INFO L131 PetriNetUnfolder]: For 93193/209584 co-relation queries the response was YES. [2022-11-18 20:37:22,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50744 conditions, 14216 events. 4473/14216 cut-off events. For 93193/209584 co-relation queries the response was YES. Maximal size of possible extension queue 540. Compared 159478 event pairs, 1415 based on Foata normal form. 1916/14959 useless extension candidates. Maximal degree in co-relation 48774. Up to 4138 conditions per place. [2022-11-18 20:37:22,515 INFO L137 encePairwiseOnDemand]: 136/163 looper letters, 218 selfloop transitions, 313 changer transitions 13/614 dead transitions. [2022-11-18 20:37:22,515 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 614 transitions, 8904 flow [2022-11-18 20:37:22,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-18 20:37:22,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-18 20:37:22,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2697 transitions. [2022-11-18 20:37:22,521 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6363850873053327 [2022-11-18 20:37:22,521 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2697 transitions. [2022-11-18 20:37:22,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2697 transitions. [2022-11-18 20:37:22,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:37:22,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2697 transitions. [2022-11-18 20:37:22,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 103.73076923076923) internal successors, (2697), 26 states have internal predecessors, (2697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:22,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 163.0) internal successors, (4401), 27 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:22,538 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 163.0) internal successors, (4401), 27 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:22,538 INFO L175 Difference]: Start difference. First operand has 341 places, 516 transitions, 7195 flow. Second operand 26 states and 2697 transitions. [2022-11-18 20:37:22,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 614 transitions, 8904 flow [2022-11-18 20:37:23,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 614 transitions, 8661 flow, removed 28 selfloop flow, removed 18 redundant places. [2022-11-18 20:37:23,461 INFO L231 Difference]: Finished difference. Result has 352 places, 519 transitions, 7749 flow [2022-11-18 20:37:23,462 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=6962, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=310, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=7749, PETRI_PLACES=352, PETRI_TRANSITIONS=519} [2022-11-18 20:37:23,463 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 218 predicate places. [2022-11-18 20:37:23,463 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 519 transitions, 7749 flow [2022-11-18 20:37:23,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:23,464 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:37:23,464 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:23,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:37:23,464 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:37:23,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:23,465 INFO L85 PathProgramCache]: Analyzing trace with hash 864554402, now seen corresponding path program 4 times [2022-11-18 20:37:23,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:23,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399922078] [2022-11-18 20:37:23,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:23,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:25,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:37:25,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:25,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399922078] [2022-11-18 20:37:25,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399922078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:25,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:37:25,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-18 20:37:25,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436863876] [2022-11-18 20:37:25,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:25,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:37:25,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:25,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:37:25,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:37:25,162 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-18 20:37:25,164 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 519 transitions, 7749 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:25,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:37:25,165 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-18 20:37:25,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:37:35,159 INFO L130 PetriNetUnfolder]: 5086/15439 cut-off events. [2022-11-18 20:37:35,159 INFO L131 PetriNetUnfolder]: For 113591/226995 co-relation queries the response was YES. [2022-11-18 20:37:35,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58836 conditions, 15439 events. 5086/15439 cut-off events. For 113591/226995 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 171943 event pairs, 1889 based on Foata normal form. 1360/15473 useless extension candidates. Maximal degree in co-relation 56822. Up to 6228 conditions per place. [2022-11-18 20:37:35,366 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 475 selfloop transitions, 196 changer transitions 10/751 dead transitions. [2022-11-18 20:37:35,366 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 751 transitions, 11152 flow [2022-11-18 20:37:35,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-18 20:37:35,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2022-11-18 20:37:35,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 4020 transitions. [2022-11-18 20:37:35,372 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6323737612081171 [2022-11-18 20:37:35,372 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 4020 transitions. [2022-11-18 20:37:35,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 4020 transitions. [2022-11-18 20:37:35,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:37:35,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 4020 transitions. [2022-11-18 20:37:35,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 103.07692307692308) internal successors, (4020), 39 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:35,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 163.0) internal successors, (6520), 40 states have internal predecessors, (6520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:35,389 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 163.0) internal successors, (6520), 40 states have internal predecessors, (6520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:35,389 INFO L175 Difference]: Start difference. First operand has 352 places, 519 transitions, 7749 flow. Second operand 39 states and 4020 transitions. [2022-11-18 20:37:35,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 751 transitions, 11152 flow [2022-11-18 20:37:36,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 751 transitions, 10777 flow, removed 28 selfloop flow, removed 19 redundant places. [2022-11-18 20:37:36,071 INFO L231 Difference]: Finished difference. Result has 385 places, 600 transitions, 9281 flow [2022-11-18 20:37:36,072 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=7434, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=9281, PETRI_PLACES=385, PETRI_TRANSITIONS=600} [2022-11-18 20:37:36,072 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 251 predicate places. [2022-11-18 20:37:36,073 INFO L495 AbstractCegarLoop]: Abstraction has has 385 places, 600 transitions, 9281 flow [2022-11-18 20:37:36,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:36,073 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:37:36,074 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:36,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:37:36,074 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:37:36,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:36,075 INFO L85 PathProgramCache]: Analyzing trace with hash 864554018, now seen corresponding path program 2 times [2022-11-18 20:37:36,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:36,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733187277] [2022-11-18 20:37:36,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:36,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:37,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:37:37,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:37,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733187277] [2022-11-18 20:37:37,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733187277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:37,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:37:37,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-18 20:37:37,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923134162] [2022-11-18 20:37:37,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:37,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:37:37,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:37,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:37:37,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:37:37,652 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-18 20:37:37,654 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 600 transitions, 9281 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:37,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:37:37,654 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-18 20:37:37,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:37:47,176 INFO L130 PetriNetUnfolder]: 5334/16317 cut-off events. [2022-11-18 20:37:47,176 INFO L131 PetriNetUnfolder]: For 147575/300400 co-relation queries the response was YES. [2022-11-18 20:37:47,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65836 conditions, 16317 events. 5334/16317 cut-off events. For 147575/300400 co-relation queries the response was YES. Maximal size of possible extension queue 657. Compared 184685 event pairs, 1960 based on Foata normal form. 1244/16139 useless extension candidates. Maximal degree in co-relation 63849. Up to 5209 conditions per place. [2022-11-18 20:37:47,358 INFO L137 encePairwiseOnDemand]: 134/163 looper letters, 479 selfloop transitions, 292 changer transitions 14/855 dead transitions. [2022-11-18 20:37:47,359 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 855 transitions, 13384 flow [2022-11-18 20:37:47,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-18 20:37:47,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-11-18 20:37:47,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3954 transitions. [2022-11-18 20:37:47,365 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6383597029383274 [2022-11-18 20:37:47,365 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 3954 transitions. [2022-11-18 20:37:47,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 3954 transitions. [2022-11-18 20:37:47,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:37:47,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 3954 transitions. [2022-11-18 20:37:47,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 104.05263157894737) internal successors, (3954), 38 states have internal predecessors, (3954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:47,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 163.0) internal successors, (6357), 39 states have internal predecessors, (6357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:47,384 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 163.0) internal successors, (6357), 39 states have internal predecessors, (6357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:47,384 INFO L175 Difference]: Start difference. First operand has 385 places, 600 transitions, 9281 flow. Second operand 38 states and 3954 transitions. [2022-11-18 20:37:47,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 855 transitions, 13384 flow [2022-11-18 20:37:48,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 855 transitions, 13181 flow, removed 66 selfloop flow, removed 12 redundant places. [2022-11-18 20:37:48,311 INFO L231 Difference]: Finished difference. Result has 418 places, 634 transitions, 10415 flow [2022-11-18 20:37:48,312 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=9144, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=258, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=10415, PETRI_PLACES=418, PETRI_TRANSITIONS=634} [2022-11-18 20:37:48,312 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 284 predicate places. [2022-11-18 20:37:48,312 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 634 transitions, 10415 flow [2022-11-18 20:37:48,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:48,313 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:37:48,313 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:37:48,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:37:48,313 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:37:48,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:37:48,314 INFO L85 PathProgramCache]: Analyzing trace with hash 630122130, now seen corresponding path program 5 times [2022-11-18 20:37:48,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:37:48,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151332861] [2022-11-18 20:37:48,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:37:48,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:37:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:37:49,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:37:49,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:37:49,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151332861] [2022-11-18 20:37:49,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151332861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:37:49,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:37:49,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-18 20:37:49,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202535108] [2022-11-18 20:37:49,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:37:49,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:37:49,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:37:49,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:37:49,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:37:49,926 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-18 20:37:49,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 634 transitions, 10415 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:49,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:37:49,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-18 20:37:49,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:37:58,944 INFO L130 PetriNetUnfolder]: 5548/16747 cut-off events. [2022-11-18 20:37:58,945 INFO L131 PetriNetUnfolder]: For 182430/369345 co-relation queries the response was YES. [2022-11-18 20:37:59,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74117 conditions, 16747 events. 5548/16747 cut-off events. For 182430/369345 co-relation queries the response was YES. Maximal size of possible extension queue 689. Compared 189391 event pairs, 2140 based on Foata normal form. 1654/16941 useless extension candidates. Maximal degree in co-relation 71924. Up to 7059 conditions per place. [2022-11-18 20:37:59,130 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 506 selfloop transitions, 199 changer transitions 13/788 dead transitions. [2022-11-18 20:37:59,131 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 788 transitions, 13359 flow [2022-11-18 20:37:59,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-18 20:37:59,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-11-18 20:37:59,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3202 transitions. [2022-11-18 20:37:59,135 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.633682960617455 [2022-11-18 20:37:59,136 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 3202 transitions. [2022-11-18 20:37:59,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 3202 transitions. [2022-11-18 20:37:59,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:37:59,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 3202 transitions. [2022-11-18 20:37:59,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 103.29032258064517) internal successors, (3202), 31 states have internal predecessors, (3202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:59,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 163.0) internal successors, (5216), 32 states have internal predecessors, (5216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:59,148 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 163.0) internal successors, (5216), 32 states have internal predecessors, (5216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:37:59,148 INFO L175 Difference]: Start difference. First operand has 418 places, 634 transitions, 10415 flow. Second operand 31 states and 3202 transitions. [2022-11-18 20:37:59,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 788 transitions, 13359 flow [2022-11-18 20:38:00,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 788 transitions, 12991 flow, removed 55 selfloop flow, removed 21 redundant places. [2022-11-18 20:38:00,378 INFO L231 Difference]: Finished difference. Result has 433 places, 665 transitions, 11228 flow [2022-11-18 20:38:00,379 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=10103, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=634, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=11228, PETRI_PLACES=433, PETRI_TRANSITIONS=665} [2022-11-18 20:38:00,379 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 299 predicate places. [2022-11-18 20:38:00,379 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 665 transitions, 11228 flow [2022-11-18 20:38:00,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:38:00,380 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:38:00,380 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:38:00,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:38:00,380 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:38:00,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:38:00,381 INFO L85 PathProgramCache]: Analyzing trace with hash 630121746, now seen corresponding path program 3 times [2022-11-18 20:38:00,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:38:00,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474597414] [2022-11-18 20:38:00,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:38:00,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:38:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:38:01,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:38:01,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:38:01,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474597414] [2022-11-18 20:38:01,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474597414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:38:01,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:38:01,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-18 20:38:01,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309273119] [2022-11-18 20:38:01,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:38:01,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:38:01,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:38:01,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:38:01,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:38:01,905 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-18 20:38:01,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 665 transitions, 11228 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:38:01,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:38:01,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-18 20:38:01,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:38:12,421 INFO L130 PetriNetUnfolder]: 5828/17656 cut-off events. [2022-11-18 20:38:12,421 INFO L131 PetriNetUnfolder]: For 245807/464840 co-relation queries the response was YES. [2022-11-18 20:38:12,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82372 conditions, 17656 events. 5828/17656 cut-off events. For 245807/464840 co-relation queries the response was YES. Maximal size of possible extension queue 731. Compared 201112 event pairs, 2170 based on Foata normal form. 1916/18012 useless extension candidates. Maximal degree in co-relation 80236. Up to 5744 conditions per place. [2022-11-18 20:38:12,683 INFO L137 encePairwiseOnDemand]: 134/163 looper letters, 492 selfloop transitions, 331 changer transitions 15/908 dead transitions. [2022-11-18 20:38:12,683 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 908 transitions, 15756 flow [2022-11-18 20:38:12,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-18 20:38:12,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-11-18 20:38:12,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3741 transitions. [2022-11-18 20:38:12,690 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6375255623721882 [2022-11-18 20:38:12,690 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 3741 transitions. [2022-11-18 20:38:12,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 3741 transitions. [2022-11-18 20:38:12,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:38:12,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 3741 transitions. [2022-11-18 20:38:12,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 103.91666666666667) internal successors, (3741), 36 states have internal predecessors, (3741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:38:12,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 163.0) internal successors, (6031), 37 states have internal predecessors, (6031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:38:12,704 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 163.0) internal successors, (6031), 37 states have internal predecessors, (6031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:38:12,704 INFO L175 Difference]: Start difference. First operand has 433 places, 665 transitions, 11228 flow. Second operand 36 states and 3741 transitions. [2022-11-18 20:38:12,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 908 transitions, 15756 flow [2022-11-18 20:38:14,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 908 transitions, 15509 flow, removed 57 selfloop flow, removed 15 redundant places. [2022-11-18 20:38:14,161 INFO L231 Difference]: Finished difference. Result has 462 places, 699 transitions, 12580 flow [2022-11-18 20:38:14,162 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=11032, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=665, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=297, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=12580, PETRI_PLACES=462, PETRI_TRANSITIONS=699} [2022-11-18 20:38:14,163 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 328 predicate places. [2022-11-18 20:38:14,164 INFO L495 AbstractCegarLoop]: Abstraction has has 462 places, 699 transitions, 12580 flow [2022-11-18 20:38:14,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:38:14,164 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:38:14,164 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:38:14,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:38:14,165 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:38:14,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:38:14,165 INFO L85 PathProgramCache]: Analyzing trace with hash 917009460, now seen corresponding path program 6 times [2022-11-18 20:38:14,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:38:14,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757080980] [2022-11-18 20:38:14,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:38:14,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:38:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:38:15,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:38:15,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:38:15,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757080980] [2022-11-18 20:38:15,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757080980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:38:15,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:38:15,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-18 20:38:15,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968615086] [2022-11-18 20:38:15,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:38:15,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:38:15,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:38:15,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:38:15,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:38:15,719 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-18 20:38:15,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 699 transitions, 12580 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:38:15,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:38:15,721 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-18 20:38:15,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:38:25,331 INFO L130 PetriNetUnfolder]: 5914/18366 cut-off events. [2022-11-18 20:38:25,332 INFO L131 PetriNetUnfolder]: For 293086/552538 co-relation queries the response was YES. [2022-11-18 20:38:25,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90650 conditions, 18366 events. 5914/18366 cut-off events. For 293086/552538 co-relation queries the response was YES. Maximal size of possible extension queue 743. Compared 213577 event pairs, 2433 based on Foata normal form. 1440/18187 useless extension candidates. Maximal degree in co-relation 88289. Up to 7835 conditions per place. [2022-11-18 20:38:25,618 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 515 selfloop transitions, 210 changer transitions 12/807 dead transitions. [2022-11-18 20:38:25,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 807 transitions, 15017 flow [2022-11-18 20:38:25,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-18 20:38:25,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-18 20:38:25,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 2996 transitions. [2022-11-18 20:38:25,623 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.633805796488259 [2022-11-18 20:38:25,623 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 2996 transitions. [2022-11-18 20:38:25,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 2996 transitions. [2022-11-18 20:38:25,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:38:25,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 2996 transitions. [2022-11-18 20:38:25,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 103.3103448275862) internal successors, (2996), 29 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:38:25,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 163.0) internal successors, (4890), 30 states have internal predecessors, (4890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:38:25,632 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 163.0) internal successors, (4890), 30 states have internal predecessors, (4890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:38:25,632 INFO L175 Difference]: Start difference. First operand has 462 places, 699 transitions, 12580 flow. Second operand 29 states and 2996 transitions. [2022-11-18 20:38:25,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 807 transitions, 15017 flow [2022-11-18 20:38:27,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 807 transitions, 14518 flow, removed 76 selfloop flow, removed 19 redundant places. [2022-11-18 20:38:27,252 INFO L231 Difference]: Finished difference. Result has 475 places, 704 transitions, 12720 flow [2022-11-18 20:38:27,253 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=12121, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=699, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=205, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=12720, PETRI_PLACES=475, PETRI_TRANSITIONS=704} [2022-11-18 20:38:27,253 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 341 predicate places. [2022-11-18 20:38:27,253 INFO L495 AbstractCegarLoop]: Abstraction has has 475 places, 704 transitions, 12720 flow [2022-11-18 20:38:27,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:38:27,254 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:38:27,254 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:38:27,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:38:27,254 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:38:27,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:38:27,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1742990780, now seen corresponding path program 7 times [2022-11-18 20:38:27,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:38:27,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353544738] [2022-11-18 20:38:27,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:38:27,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:38:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:38:28,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:38:28,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:38:28,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353544738] [2022-11-18 20:38:28,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353544738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:38:28,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:38:28,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-18 20:38:28,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989733429] [2022-11-18 20:38:28,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:38:28,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:38:28,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:38:28,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:38:28,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:38:28,758 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-18 20:38:28,760 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 704 transitions, 12720 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:38:28,760 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:38:28,760 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-18 20:38:28,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand