./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.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_8f1b29ae-4e45-4ba3-8df2-4e8cc0ab0fd9/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b29ae-4e45-4ba3-8df2-4e8cc0ab0fd9/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_8f1b29ae-4e45-4ba3-8df2-4e8cc0ab0fd9/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b29ae-4e45-4ba3-8df2-4e8cc0ab0fd9/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b29ae-4e45-4ba3-8df2-4e8cc0ab0fd9/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_8f1b29ae-4e45-4ba3-8df2-4e8cc0ab0fd9/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 02b1c265b98bd14cc97fe77543b4e06699576e2091fa3d4102d013e6b3937418 --- 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 20:30:26,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:30:26,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:30:26,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:30:26,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:30:26,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:30:26,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:30:26,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:30:26,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:30:26,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:30:26,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:30:26,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:30:26,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:30:26,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:30:26,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:30:26,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:30:26,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:30:26,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:30:26,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:30:26,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:30:26,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:30:26,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:30:26,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:30:26,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:30:26,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:30:26,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:30:26,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:30:26,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:30:26,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:30:26,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:30:26,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:30:26,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:30:26,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:30:26,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:30:26,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:30:26,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:30:26,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:30:26,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:30:26,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:30:26,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:30:26,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:30:26,192 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b29ae-4e45-4ba3-8df2-4e8cc0ab0fd9/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:30:26,233 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:30:26,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:30:26,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:30:26,234 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:30:26,235 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:30:26,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:30:26,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:30:26,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:30:26,237 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:30:26,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:30:26,238 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:30:26,239 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:30:26,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:30:26,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:30:26,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:30:26,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:30:26,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:30:26,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:30:26,241 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:30:26,241 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:30:26,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:30:26,242 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:30:26,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:30:26,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:30:26,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:30:26,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:30:26,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:30:26,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:30:26,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:30:26,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:30:26,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:30:26,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:30:26,246 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:30:26,246 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:30:26,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:30:26,247 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_8f1b29ae-4e45-4ba3-8df2-4e8cc0ab0fd9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b29ae-4e45-4ba3-8df2-4e8cc0ab0fd9/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02b1c265b98bd14cc97fe77543b4e06699576e2091fa3d4102d013e6b3937418 [2022-11-18 20:30:26,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:30:26,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:30:26,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:30:26,596 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:30:26,597 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:30:26,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b29ae-4e45-4ba3-8df2-4e8cc0ab0fd9/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2022-11-18 20:30:26,678 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b29ae-4e45-4ba3-8df2-4e8cc0ab0fd9/bin/uautomizer-TMbwUNV5ro/data/e86a13990/4255b9b959fe46ac96e7491d6c027c8d/FLAGe57f348aa [2022-11-18 20:30:27,309 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:30:27,310 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b29ae-4e45-4ba3-8df2-4e8cc0ab0fd9/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2022-11-18 20:30:27,330 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b29ae-4e45-4ba3-8df2-4e8cc0ab0fd9/bin/uautomizer-TMbwUNV5ro/data/e86a13990/4255b9b959fe46ac96e7491d6c027c8d/FLAGe57f348aa [2022-11-18 20:30:27,556 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b29ae-4e45-4ba3-8df2-4e8cc0ab0fd9/bin/uautomizer-TMbwUNV5ro/data/e86a13990/4255b9b959fe46ac96e7491d6c027c8d [2022-11-18 20:30:27,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:30:27,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:30:27,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:30:27,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:30:27,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:30:27,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:30:27" (1/1) ... [2022-11-18 20:30:27,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c8b0ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:27, skipping insertion in model container [2022-11-18 20:30:27,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:30:27" (1/1) ... [2022-11-18 20:30:27,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:30:27,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:30:27,889 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 20:30:28,491 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_8f1b29ae-4e45-4ba3-8df2-4e8cc0ab0fd9/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i[75009,75022] [2022-11-18 20:30:28,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:30:28,571 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:30:28,587 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 20:30:28,631 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_8f1b29ae-4e45-4ba3-8df2-4e8cc0ab0fd9/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i[75009,75022] [2022-11-18 20:30:28,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:30:28,761 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:30:28,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:28 WrapperNode [2022-11-18 20:30:28,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:30:28,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:30:28,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:30:28,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:30:28,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:28" (1/1) ... [2022-11-18 20:30:28,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:28" (1/1) ... [2022-11-18 20:30:28,871 INFO L138 Inliner]: procedures = 468, calls = 52, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 134 [2022-11-18 20:30:28,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:30:28,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:30:28,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:30:28,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:30:28,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:28" (1/1) ... [2022-11-18 20:30:28,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:28" (1/1) ... [2022-11-18 20:30:28,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:28" (1/1) ... [2022-11-18 20:30:28,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:28" (1/1) ... [2022-11-18 20:30:28,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:28" (1/1) ... [2022-11-18 20:30:28,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:28" (1/1) ... [2022-11-18 20:30:28,963 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:28" (1/1) ... [2022-11-18 20:30:28,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:28" (1/1) ... [2022-11-18 20:30:28,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:30:28,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:30:28,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:30:28,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:30:28,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:28" (1/1) ... [2022-11-18 20:30:28,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:30:29,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b29ae-4e45-4ba3-8df2-4e8cc0ab0fd9/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:29,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b29ae-4e45-4ba3-8df2-4e8cc0ab0fd9/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:29,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b29ae-4e45-4ba3-8df2-4e8cc0ab0fd9/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:30:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:30:29,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:30:29,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:30:29,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:30:29,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:30:29,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:30:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:30:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:30:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-18 20:30:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-18 20:30:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:30:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:30:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:30:29,066 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 20:30:29,388 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:30:29,390 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:30:29,762 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:30:29,804 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:30:29,807 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:30:29,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:30:29 BoogieIcfgContainer [2022-11-18 20:30:29,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:30:29,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:30:29,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:30:29,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:30:29,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:30:27" (1/3) ... [2022-11-18 20:30:29,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e252d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:30:29, skipping insertion in model container [2022-11-18 20:30:29,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:28" (2/3) ... [2022-11-18 20:30:29,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e252d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:30:29, skipping insertion in model container [2022-11-18 20:30:29,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:30:29" (3/3) ... [2022-11-18 20:30:29,824 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2022-11-18 20:30:29,834 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:30:29,846 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:30:29,847 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 20:30:29,847 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:30:29,978 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 20:30:30,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 184 transitions, 384 flow [2022-11-18 20:30:30,184 INFO L130 PetriNetUnfolder]: 10/227 cut-off events. [2022-11-18 20:30:30,184 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:30:30,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 227 events. 10/227 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 325 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 135. Up to 4 conditions per place. [2022-11-18 20:30:30,192 INFO L82 GeneralOperation]: Start removeDead. Operand has 182 places, 184 transitions, 384 flow [2022-11-18 20:30:30,201 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 150 transitions, 309 flow [2022-11-18 20:30:30,219 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:30:30,227 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;@bcdfb2f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:30:30,228 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 20:30:30,262 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-11-18 20:30:30,263 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:30:30,263 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:30:30,264 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:30:30,265 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 20:30:30,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:30,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1235700042, now seen corresponding path program 1 times [2022-11-18 20:30:30,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:30,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472679616] [2022-11-18 20:30:30,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:30,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:32,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:30:32,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:30:32,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472679616] [2022-11-18 20:30:32,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472679616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:30:32,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:30:32,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-18 20:30:32,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658202089] [2022-11-18 20:30:32,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:30:32,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 20:30:32,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:30:32,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 20:30:32,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:30:32,461 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 184 [2022-11-18 20:30:32,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 150 transitions, 309 flow. Second operand has 15 states, 15 states have (on average 88.53333333333333) internal successors, (1328), 15 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states 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 20:30:32,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:30:32,473 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 184 [2022-11-18 20:30:32,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:30:34,418 INFO L130 PetriNetUnfolder]: 2160/4594 cut-off events. [2022-11-18 20:30:34,418 INFO L131 PetriNetUnfolder]: For 22/26 co-relation queries the response was YES. [2022-11-18 20:30:34,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8201 conditions, 4594 events. 2160/4594 cut-off events. For 22/26 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 32516 event pairs, 1476 based on Foata normal form. 134/3995 useless extension candidates. Maximal degree in co-relation 7928. Up to 2797 conditions per place. [2022-11-18 20:30:34,452 INFO L137 encePairwiseOnDemand]: 164/184 looper letters, 107 selfloop transitions, 19 changer transitions 4/201 dead transitions. [2022-11-18 20:30:34,452 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 201 transitions, 677 flow [2022-11-18 20:30:34,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 20:30:34,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-18 20:30:34,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1518 transitions. [2022-11-18 20:30:34,471 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.515625 [2022-11-18 20:30:34,472 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1518 transitions. [2022-11-18 20:30:34,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1518 transitions. [2022-11-18 20:30:34,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:30:34,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1518 transitions. [2022-11-18 20:30:34,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 94.875) internal successors, (1518), 16 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states 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 20:30:34,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 184.0) internal successors, (3128), 17 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states 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 20:30:34,497 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 184.0) internal successors, (3128), 17 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states 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 20:30:34,499 INFO L175 Difference]: Start difference. First operand has 153 places, 150 transitions, 309 flow. Second operand 16 states and 1518 transitions. [2022-11-18 20:30:34,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 201 transitions, 677 flow [2022-11-18 20:30:34,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 201 transitions, 669 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:30:34,509 INFO L231 Difference]: Finished difference. Result has 168 places, 151 transitions, 387 flow [2022-11-18 20:30:34,511 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=387, PETRI_PLACES=168, PETRI_TRANSITIONS=151} [2022-11-18 20:30:34,515 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 15 predicate places. [2022-11-18 20:30:34,515 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 151 transitions, 387 flow [2022-11-18 20:30:34,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 88.53333333333333) internal successors, (1328), 15 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states 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 20:30:34,516 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:30:34,516 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:30:34,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:30:34,517 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:30:34,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:34,518 INFO L85 PathProgramCache]: Analyzing trace with hash -988754059, now seen corresponding path program 1 times [2022-11-18 20:30:34,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:34,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772504752] [2022-11-18 20:30:34,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:34,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:36,257 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 20:30:36,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:30:36,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772504752] [2022-11-18 20:30:36,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772504752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:30:36,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:30:36,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-18 20:30:36,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691282812] [2022-11-18 20:30:36,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:30:36,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-18 20:30:36,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:30:36,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-18 20:30:36,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2022-11-18 20:30:36,264 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 184 [2022-11-18 20:30:36,267 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 151 transitions, 387 flow. Second operand has 21 states, 21 states have (on average 85.95238095238095) internal successors, (1805), 21 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states 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 20:30:36,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:30:36,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 184 [2022-11-18 20:30:36,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:30:38,500 INFO L130 PetriNetUnfolder]: 2419/5197 cut-off events. [2022-11-18 20:30:38,501 INFO L131 PetriNetUnfolder]: For 2177/2184 co-relation queries the response was YES. [2022-11-18 20:30:38,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10900 conditions, 5197 events. 2419/5197 cut-off events. For 2177/2184 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 38005 event pairs, 1195 based on Foata normal form. 123/4642 useless extension candidates. Maximal degree in co-relation 9099. Up to 2584 conditions per place. [2022-11-18 20:30:38,537 INFO L137 encePairwiseOnDemand]: 162/184 looper letters, 133 selfloop transitions, 35 changer transitions 2/239 dead transitions. [2022-11-18 20:30:38,537 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 239 transitions, 952 flow [2022-11-18 20:30:38,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 20:30:38,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 20:30:38,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1850 transitions. [2022-11-18 20:30:38,543 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5027173913043478 [2022-11-18 20:30:38,543 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1850 transitions. [2022-11-18 20:30:38,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1850 transitions. [2022-11-18 20:30:38,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:30:38,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1850 transitions. [2022-11-18 20:30:38,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 92.5) internal successors, (1850), 20 states have internal predecessors, (1850), 0 states have call successors, (0), 0 states 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 20:30:38,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 184.0) internal successors, (3864), 21 states have internal predecessors, (3864), 0 states have call successors, (0), 0 states 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 20:30:38,560 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 184.0) internal successors, (3864), 21 states have internal predecessors, (3864), 0 states have call successors, (0), 0 states 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 20:30:38,560 INFO L175 Difference]: Start difference. First operand has 168 places, 151 transitions, 387 flow. Second operand 20 states and 1850 transitions. [2022-11-18 20:30:38,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 239 transitions, 952 flow [2022-11-18 20:30:38,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 239 transitions, 941 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 20:30:38,579 INFO L231 Difference]: Finished difference. Result has 186 places, 171 transitions, 569 flow [2022-11-18 20:30:38,579 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=569, PETRI_PLACES=186, PETRI_TRANSITIONS=171} [2022-11-18 20:30:38,580 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 33 predicate places. [2022-11-18 20:30:38,580 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 171 transitions, 569 flow [2022-11-18 20:30:38,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 85.95238095238095) internal successors, (1805), 21 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states 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 20:30:38,581 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:30:38,582 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:30:38,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:30:38,582 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 20:30:38,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:38,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1864930223, now seen corresponding path program 1 times [2022-11-18 20:30:38,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:38,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179408781] [2022-11-18 20:30:38,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:38,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:40,096 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 20:30:40,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:30:40,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179408781] [2022-11-18 20:30:40,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179408781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:30:40,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:30:40,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 20:30:40,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23219483] [2022-11-18 20:30:40,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:30:40,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:30:40,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:30:40,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:30:40,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:30:40,104 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 184 [2022-11-18 20:30:40,106 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 171 transitions, 569 flow. Second operand has 18 states, 18 states have (on average 87.27777777777777) internal successors, (1571), 18 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states 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 20:30:40,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:30:40,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 184 [2022-11-18 20:30:40,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:30:42,449 INFO L130 PetriNetUnfolder]: 3179/6946 cut-off events. [2022-11-18 20:30:42,449 INFO L131 PetriNetUnfolder]: For 9164/12335 co-relation queries the response was YES. [2022-11-18 20:30:42,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16925 conditions, 6946 events. 3179/6946 cut-off events. For 9164/12335 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 54189 event pairs, 1497 based on Foata normal form. 37/6182 useless extension candidates. Maximal degree in co-relation 15031. Up to 4429 conditions per place. [2022-11-18 20:30:42,538 INFO L137 encePairwiseOnDemand]: 165/184 looper letters, 140 selfloop transitions, 37 changer transitions 5/254 dead transitions. [2022-11-18 20:30:42,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 254 transitions, 1254 flow [2022-11-18 20:30:42,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 20:30:42,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-18 20:30:42,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1691 transitions. [2022-11-18 20:30:42,546 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5105676328502415 [2022-11-18 20:30:42,546 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1691 transitions. [2022-11-18 20:30:42,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1691 transitions. [2022-11-18 20:30:42,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:30:42,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1691 transitions. [2022-11-18 20:30:42,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 93.94444444444444) internal successors, (1691), 18 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states 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 20:30:42,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 184.0) internal successors, (3496), 19 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states 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 20:30:42,560 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 184.0) internal successors, (3496), 19 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states 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 20:30:42,560 INFO L175 Difference]: Start difference. First operand has 186 places, 171 transitions, 569 flow. Second operand 18 states and 1691 transitions. [2022-11-18 20:30:42,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 254 transitions, 1254 flow [2022-11-18 20:30:42,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 254 transitions, 1170 flow, removed 31 selfloop flow, removed 11 redundant places. [2022-11-18 20:30:42,623 INFO L231 Difference]: Finished difference. Result has 198 places, 188 transitions, 735 flow [2022-11-18 20:30:42,624 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=735, PETRI_PLACES=198, PETRI_TRANSITIONS=188} [2022-11-18 20:30:42,626 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 45 predicate places. [2022-11-18 20:30:42,626 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 188 transitions, 735 flow [2022-11-18 20:30:42,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 87.27777777777777) internal successors, (1571), 18 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states 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 20:30:42,627 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:30:42,628 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:30:42,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:30:42,628 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 20:30:42,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:42,629 INFO L85 PathProgramCache]: Analyzing trace with hash -768630694, now seen corresponding path program 1 times [2022-11-18 20:30:42,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:42,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143691989] [2022-11-18 20:30:42,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:42,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:44,314 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 20:30:44,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:30:44,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143691989] [2022-11-18 20:30:44,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143691989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:30:44,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:30:44,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-18 20:30:44,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018483126] [2022-11-18 20:30:44,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:30:44,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 20:30:44,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:30:44,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 20:30:44,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-11-18 20:30:44,320 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 184 [2022-11-18 20:30:44,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 188 transitions, 735 flow. Second operand has 22 states, 22 states have (on average 85.04545454545455) internal successors, (1871), 22 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states 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 20:30:44,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:30:44,323 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 184 [2022-11-18 20:30:44,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:30:48,538 INFO L130 PetriNetUnfolder]: 4156/8851 cut-off events. [2022-11-18 20:30:48,539 INFO L131 PetriNetUnfolder]: For 11322/15095 co-relation queries the response was YES. [2022-11-18 20:30:48,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23346 conditions, 8851 events. 4156/8851 cut-off events. For 11322/15095 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 69884 event pairs, 1246 based on Foata normal form. 251/8422 useless extension candidates. Maximal degree in co-relation 20142. Up to 4208 conditions per place. [2022-11-18 20:30:48,801 INFO L137 encePairwiseOnDemand]: 162/184 looper letters, 184 selfloop transitions, 70 changer transitions 4/326 dead transitions. [2022-11-18 20:30:48,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 326 transitions, 1810 flow [2022-11-18 20:30:48,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 20:30:48,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-18 20:30:48,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2222 transitions. [2022-11-18 20:30:48,809 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5031702898550725 [2022-11-18 20:30:48,810 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2222 transitions. [2022-11-18 20:30:48,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2222 transitions. [2022-11-18 20:30:48,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:30:48,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2222 transitions. [2022-11-18 20:30:48,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 92.58333333333333) internal successors, (2222), 24 states have internal predecessors, (2222), 0 states have call successors, (0), 0 states 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 20:30:48,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 184.0) internal successors, (4600), 25 states have internal predecessors, (4600), 0 states have call successors, (0), 0 states 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 20:30:48,831 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 184.0) internal successors, (4600), 25 states have internal predecessors, (4600), 0 states have call successors, (0), 0 states 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 20:30:48,831 INFO L175 Difference]: Start difference. First operand has 198 places, 188 transitions, 735 flow. Second operand 24 states and 2222 transitions. [2022-11-18 20:30:48,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 326 transitions, 1810 flow [2022-11-18 20:30:48,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 326 transitions, 1771 flow, removed 12 selfloop flow, removed 8 redundant places. [2022-11-18 20:30:48,934 INFO L231 Difference]: Finished difference. Result has 223 places, 219 transitions, 1162 flow [2022-11-18 20:30:48,937 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1162, PETRI_PLACES=223, PETRI_TRANSITIONS=219} [2022-11-18 20:30:48,938 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 70 predicate places. [2022-11-18 20:30:48,939 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 219 transitions, 1162 flow [2022-11-18 20:30:48,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 85.04545454545455) internal successors, (1871), 22 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states 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 20:30:48,940 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:30:48,940 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:30:48,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:30:48,941 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 20:30:48,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:48,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1280434954, now seen corresponding path program 1 times [2022-11-18 20:30:48,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:48,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518724988] [2022-11-18 20:30:48,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:48,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:50,837 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 20:30:50,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:30:50,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518724988] [2022-11-18 20:30:50,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518724988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:30:50,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:30:50,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-18 20:30:50,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120018105] [2022-11-18 20:30:50,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:30:50,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:30:50,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:30:50,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:30:50,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:30:50,843 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 184 [2022-11-18 20:30:50,845 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 219 transitions, 1162 flow. Second operand has 25 states, 25 states have (on average 83.84) internal successors, (2096), 25 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states 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 20:30:50,845 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:30:50,845 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 184 [2022-11-18 20:30:50,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:30:55,121 INFO L130 PetriNetUnfolder]: 4664/10153 cut-off events. [2022-11-18 20:30:55,121 INFO L131 PetriNetUnfolder]: For 29540/47527 co-relation queries the response was YES. [2022-11-18 20:30:55,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31480 conditions, 10153 events. 4664/10153 cut-off events. For 29540/47527 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 84264 event pairs, 2027 based on Foata normal form. 383/9645 useless extension candidates. Maximal degree in co-relation 27605. Up to 6415 conditions per place. [2022-11-18 20:30:55,218 INFO L137 encePairwiseOnDemand]: 159/184 looper letters, 171 selfloop transitions, 74 changer transitions 13/325 dead transitions. [2022-11-18 20:30:55,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 325 transitions, 2270 flow [2022-11-18 20:30:55,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-18 20:30:55,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-18 20:30:55,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1996 transitions. [2022-11-18 20:30:55,225 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49308300395256915 [2022-11-18 20:30:55,225 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1996 transitions. [2022-11-18 20:30:55,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1996 transitions. [2022-11-18 20:30:55,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:30:55,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1996 transitions. [2022-11-18 20:30:55,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 90.72727272727273) internal successors, (1996), 22 states have internal predecessors, (1996), 0 states have call successors, (0), 0 states 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 20:30:55,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 184.0) internal successors, (4232), 23 states have internal predecessors, (4232), 0 states have call successors, (0), 0 states 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 20:30:55,239 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 184.0) internal successors, (4232), 23 states have internal predecessors, (4232), 0 states have call successors, (0), 0 states 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 20:30:55,240 INFO L175 Difference]: Start difference. First operand has 223 places, 219 transitions, 1162 flow. Second operand 22 states and 1996 transitions. [2022-11-18 20:30:55,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 325 transitions, 2270 flow [2022-11-18 20:30:55,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 325 transitions, 2183 flow, removed 19 selfloop flow, removed 12 redundant places. [2022-11-18 20:30:55,352 INFO L231 Difference]: Finished difference. Result has 238 places, 237 transitions, 1481 flow [2022-11-18 20:30:55,353 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=1095, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1481, PETRI_PLACES=238, PETRI_TRANSITIONS=237} [2022-11-18 20:30:55,354 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 85 predicate places. [2022-11-18 20:30:55,354 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 237 transitions, 1481 flow [2022-11-18 20:30:55,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 83.84) internal successors, (2096), 25 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states 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 20:30:55,355 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:30:55,355 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:30:55,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:30:55,356 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 20:30:55,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:55,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1152537874, now seen corresponding path program 2 times [2022-11-18 20:30:55,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:55,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882094614] [2022-11-18 20:30:55,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:55,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:56,908 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 20:30:56,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:30:56,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882094614] [2022-11-18 20:30:56,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882094614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:30:56,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:30:56,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-18 20:30:56,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913834692] [2022-11-18 20:30:56,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:30:56,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 20:30:56,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:30:56,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 20:30:56,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-11-18 20:30:56,912 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 184 [2022-11-18 20:30:56,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 237 transitions, 1481 flow. Second operand has 22 states, 22 states have (on average 85.04545454545455) internal successors, (1871), 22 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states 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 20:30:56,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:30:56,914 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 184 [2022-11-18 20:30:56,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:01,654 INFO L130 PetriNetUnfolder]: 5048/11071 cut-off events. [2022-11-18 20:31:01,654 INFO L131 PetriNetUnfolder]: For 38908/53510 co-relation queries the response was YES. [2022-11-18 20:31:01,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36975 conditions, 11071 events. 5048/11071 cut-off events. For 38908/53510 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 94194 event pairs, 2185 based on Foata normal form. 515/10630 useless extension candidates. Maximal degree in co-relation 32830. Up to 6253 conditions per place. [2022-11-18 20:31:01,784 INFO L137 encePairwiseOnDemand]: 162/184 looper letters, 190 selfloop transitions, 95 changer transitions 16/369 dead transitions. [2022-11-18 20:31:01,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 369 transitions, 2835 flow [2022-11-18 20:31:01,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-18 20:31:01,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-18 20:31:01,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2393 transitions. [2022-11-18 20:31:01,792 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5002090301003345 [2022-11-18 20:31:01,792 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2393 transitions. [2022-11-18 20:31:01,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2393 transitions. [2022-11-18 20:31:01,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:01,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2393 transitions. [2022-11-18 20:31:01,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 92.03846153846153) internal successors, (2393), 26 states have internal predecessors, (2393), 0 states have call successors, (0), 0 states 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 20:31:01,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 184.0) internal successors, (4968), 27 states have internal predecessors, (4968), 0 states have call successors, (0), 0 states 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 20:31:01,807 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 184.0) internal successors, (4968), 27 states have internal predecessors, (4968), 0 states have call successors, (0), 0 states 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 20:31:01,807 INFO L175 Difference]: Start difference. First operand has 238 places, 237 transitions, 1481 flow. Second operand 26 states and 2393 transitions. [2022-11-18 20:31:01,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 369 transitions, 2835 flow [2022-11-18 20:31:02,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 369 transitions, 2768 flow, removed 8 selfloop flow, removed 13 redundant places. [2022-11-18 20:31:02,135 INFO L231 Difference]: Finished difference. Result has 257 places, 254 transitions, 1884 flow [2022-11-18 20:31:02,136 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=1414, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=1884, PETRI_PLACES=257, PETRI_TRANSITIONS=254} [2022-11-18 20:31:02,139 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 104 predicate places. [2022-11-18 20:31:02,140 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 254 transitions, 1884 flow [2022-11-18 20:31:02,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 85.04545454545455) internal successors, (1871), 22 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states 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 20:31:02,141 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:02,141 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:02,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:31:02,141 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:31:02,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:02,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1143283444, now seen corresponding path program 3 times [2022-11-18 20:31:02,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:02,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278021345] [2022-11-18 20:31:02,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:02,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:03,845 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 20:31:03,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:03,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278021345] [2022-11-18 20:31:03,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278021345] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:03,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:03,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-18 20:31:03,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540470476] [2022-11-18 20:31:03,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:03,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:31:03,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:03,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:31:03,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:31:03,853 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 184 [2022-11-18 20:31:03,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 254 transitions, 1884 flow. Second operand has 25 states, 25 states have (on average 83.84) internal successors, (2096), 25 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states 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 20:31:03,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:03,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 184 [2022-11-18 20:31:03,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:07,993 INFO L130 PetriNetUnfolder]: 5217/11510 cut-off events. [2022-11-18 20:31:07,993 INFO L131 PetriNetUnfolder]: For 54860/70973 co-relation queries the response was YES. [2022-11-18 20:31:08,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41011 conditions, 11510 events. 5217/11510 cut-off events. For 54860/70973 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 99291 event pairs, 2280 based on Foata normal form. 491/11023 useless extension candidates. Maximal degree in co-relation 37900. Up to 6174 conditions per place. [2022-11-18 20:31:08,107 INFO L137 encePairwiseOnDemand]: 159/184 looper letters, 170 selfloop transitions, 104 changer transitions 12/353 dead transitions. [2022-11-18 20:31:08,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 353 transitions, 2975 flow [2022-11-18 20:31:08,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 20:31:08,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-11-18 20:31:08,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 2265 transitions. [2022-11-18 20:31:08,113 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4923913043478261 [2022-11-18 20:31:08,113 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 2265 transitions. [2022-11-18 20:31:08,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 2265 transitions. [2022-11-18 20:31:08,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:08,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 2265 transitions. [2022-11-18 20:31:08,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 90.6) internal successors, (2265), 25 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states 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 20:31:08,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 184.0) internal successors, (4784), 26 states have internal predecessors, (4784), 0 states have call successors, (0), 0 states 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 20:31:08,127 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 184.0) internal successors, (4784), 26 states have internal predecessors, (4784), 0 states have call successors, (0), 0 states 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 20:31:08,127 INFO L175 Difference]: Start difference. First operand has 257 places, 254 transitions, 1884 flow. Second operand 25 states and 2265 transitions. [2022-11-18 20:31:08,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 353 transitions, 2975 flow [2022-11-18 20:31:08,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 353 transitions, 2797 flow, removed 36 selfloop flow, removed 19 redundant places. [2022-11-18 20:31:08,458 INFO L231 Difference]: Finished difference. Result has 266 places, 257 transitions, 2031 flow [2022-11-18 20:31:08,459 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=1716, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=2031, PETRI_PLACES=266, PETRI_TRANSITIONS=257} [2022-11-18 20:31:08,459 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 113 predicate places. [2022-11-18 20:31:08,460 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 257 transitions, 2031 flow [2022-11-18 20:31:08,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 83.84) internal successors, (2096), 25 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states 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 20:31:08,461 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:08,461 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:08,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:31:08,461 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-18 20:31:08,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:08,462 INFO L85 PathProgramCache]: Analyzing trace with hash 309925846, now seen corresponding path program 2 times [2022-11-18 20:31:08,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:08,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225442367] [2022-11-18 20:31:08,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:08,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:10,074 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 20:31:10,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:10,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225442367] [2022-11-18 20:31:10,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225442367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:10,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:10,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-18 20:31:10,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511093768] [2022-11-18 20:31:10,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:10,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 20:31:10,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:10,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 20:31:10,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-11-18 20:31:10,079 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 184 [2022-11-18 20:31:10,081 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 257 transitions, 2031 flow. Second operand has 22 states, 22 states have (on average 85.04545454545455) internal successors, (1871), 22 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states 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 20:31:10,081 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:10,082 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 184 [2022-11-18 20:31:10,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:15,175 INFO L130 PetriNetUnfolder]: 6029/13073 cut-off events. [2022-11-18 20:31:15,176 INFO L131 PetriNetUnfolder]: For 80704/119451 co-relation queries the response was YES. [2022-11-18 20:31:15,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48410 conditions, 13073 events. 6029/13073 cut-off events. For 80704/119451 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 113565 event pairs, 2764 based on Foata normal form. 808/12809 useless extension candidates. Maximal degree in co-relation 44859. Up to 7185 conditions per place. [2022-11-18 20:31:15,335 INFO L137 encePairwiseOnDemand]: 161/184 looper letters, 272 selfloop transitions, 135 changer transitions 7/482 dead transitions. [2022-11-18 20:31:15,336 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 482 transitions, 4767 flow [2022-11-18 20:31:15,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-18 20:31:15,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-11-18 20:31:15,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2496 transitions. [2022-11-18 20:31:15,342 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5024154589371981 [2022-11-18 20:31:15,343 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 2496 transitions. [2022-11-18 20:31:15,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 2496 transitions. [2022-11-18 20:31:15,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:15,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 2496 transitions. [2022-11-18 20:31:15,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 92.44444444444444) internal successors, (2496), 27 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states 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 20:31:15,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 184.0) internal successors, (5152), 28 states have internal predecessors, (5152), 0 states have call successors, (0), 0 states 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 20:31:15,360 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 184.0) internal successors, (5152), 28 states have internal predecessors, (5152), 0 states have call successors, (0), 0 states 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 20:31:15,360 INFO L175 Difference]: Start difference. First operand has 266 places, 257 transitions, 2031 flow. Second operand 27 states and 2496 transitions. [2022-11-18 20:31:15,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 482 transitions, 4767 flow [2022-11-18 20:31:15,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 482 transitions, 4542 flow, removed 29 selfloop flow, removed 19 redundant places. [2022-11-18 20:31:15,779 INFO L231 Difference]: Finished difference. Result has 284 places, 337 transitions, 3350 flow [2022-11-18 20:31:15,780 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=1904, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=3350, PETRI_PLACES=284, PETRI_TRANSITIONS=337} [2022-11-18 20:31:15,781 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 131 predicate places. [2022-11-18 20:31:15,781 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 337 transitions, 3350 flow [2022-11-18 20:31:15,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 85.04545454545455) internal successors, (1871), 22 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states 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 20:31:15,782 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:15,782 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:15,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:31:15,783 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 20:31:15,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:15,783 INFO L85 PathProgramCache]: Analyzing trace with hash 5481046, now seen corresponding path program 3 times [2022-11-18 20:31:15,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:15,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172962245] [2022-11-18 20:31:15,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:15,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,182 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 20:31:17,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:17,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172962245] [2022-11-18 20:31:17,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172962245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:17,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:17,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-18 20:31:17,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879783368] [2022-11-18 20:31:17,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:17,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 20:31:17,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:17,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 20:31:17,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-11-18 20:31:17,186 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 184 [2022-11-18 20:31:17,188 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 337 transitions, 3350 flow. Second operand has 22 states, 22 states have (on average 85.04545454545455) internal successors, (1871), 22 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states 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 20:31:17,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:17,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 184 [2022-11-18 20:31:17,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:22,453 INFO L130 PetriNetUnfolder]: 6380/13880 cut-off events. [2022-11-18 20:31:22,453 INFO L131 PetriNetUnfolder]: For 112119/164596 co-relation queries the response was YES. [2022-11-18 20:31:22,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58020 conditions, 13880 events. 6380/13880 cut-off events. For 112119/164596 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 122131 event pairs, 2878 based on Foata normal form. 1221/13983 useless extension candidates. Maximal degree in co-relation 52978. Up to 7806 conditions per place. [2022-11-18 20:31:22,615 INFO L137 encePairwiseOnDemand]: 161/184 looper letters, 294 selfloop transitions, 129 changer transitions 7/498 dead transitions. [2022-11-18 20:31:22,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 498 transitions, 5447 flow [2022-11-18 20:31:22,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-18 20:31:22,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-18 20:31:22,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2408 transitions. [2022-11-18 20:31:22,619 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5033444816053512 [2022-11-18 20:31:22,620 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2408 transitions. [2022-11-18 20:31:22,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2408 transitions. [2022-11-18 20:31:22,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:22,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2408 transitions. [2022-11-18 20:31:22,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 92.61538461538461) internal successors, (2408), 26 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states 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 20:31:22,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 184.0) internal successors, (4968), 27 states have internal predecessors, (4968), 0 states have call successors, (0), 0 states 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 20:31:22,634 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 184.0) internal successors, (4968), 27 states have internal predecessors, (4968), 0 states have call successors, (0), 0 states 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 20:31:22,634 INFO L175 Difference]: Start difference. First operand has 284 places, 337 transitions, 3350 flow. Second operand 26 states and 2408 transitions. [2022-11-18 20:31:22,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 498 transitions, 5447 flow [2022-11-18 20:31:23,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 498 transitions, 5338 flow, removed 42 selfloop flow, removed 10 redundant places. [2022-11-18 20:31:23,259 INFO L231 Difference]: Finished difference. Result has 307 places, 359 transitions, 3982 flow [2022-11-18 20:31:23,260 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=3267, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=3982, PETRI_PLACES=307, PETRI_TRANSITIONS=359} [2022-11-18 20:31:23,261 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 154 predicate places. [2022-11-18 20:31:23,261 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 359 transitions, 3982 flow [2022-11-18 20:31:23,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 85.04545454545455) internal successors, (1871), 22 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states 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 20:31:23,261 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:23,262 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:23,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:31:23,262 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 20:31:23,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:23,262 INFO L85 PathProgramCache]: Analyzing trace with hash 309926198, now seen corresponding path program 4 times [2022-11-18 20:31:23,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:23,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998176421] [2022-11-18 20:31:23,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:23,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:24,560 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 20:31:24,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:24,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998176421] [2022-11-18 20:31:24,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998176421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:24,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:24,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-18 20:31:24,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261743808] [2022-11-18 20:31:24,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:24,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 20:31:24,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:24,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 20:31:24,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-11-18 20:31:24,564 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 184 [2022-11-18 20:31:24,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 359 transitions, 3982 flow. Second operand has 22 states, 22 states have (on average 85.04545454545455) internal successors, (1871), 22 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states 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 20:31:24,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:24,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 184 [2022-11-18 20:31:24,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:29,988 INFO L130 PetriNetUnfolder]: 7041/15617 cut-off events. [2022-11-18 20:31:29,988 INFO L131 PetriNetUnfolder]: For 141558/191303 co-relation queries the response was YES. [2022-11-18 20:31:30,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69694 conditions, 15617 events. 7041/15617 cut-off events. For 141558/191303 co-relation queries the response was YES. Maximal size of possible extension queue 513. Compared 143099 event pairs, 3272 based on Foata normal form. 841/15124 useless extension candidates. Maximal degree in co-relation 65337. Up to 9443 conditions per place. [2022-11-18 20:31:30,200 INFO L137 encePairwiseOnDemand]: 162/184 looper letters, 273 selfloop transitions, 106 changer transitions 16/463 dead transitions. [2022-11-18 20:31:30,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 463 transitions, 5525 flow [2022-11-18 20:31:30,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-18 20:31:30,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-18 20:31:30,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2028 transitions. [2022-11-18 20:31:30,204 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5009881422924901 [2022-11-18 20:31:30,204 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2028 transitions. [2022-11-18 20:31:30,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2028 transitions. [2022-11-18 20:31:30,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:30,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2028 transitions. [2022-11-18 20:31:30,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 92.18181818181819) internal successors, (2028), 22 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states 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 20:31:30,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 184.0) internal successors, (4232), 23 states have internal predecessors, (4232), 0 states have call successors, (0), 0 states 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 20:31:30,216 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 184.0) internal successors, (4232), 23 states have internal predecessors, (4232), 0 states have call successors, (0), 0 states 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 20:31:30,216 INFO L175 Difference]: Start difference. First operand has 307 places, 359 transitions, 3982 flow. Second operand 22 states and 2028 transitions. [2022-11-18 20:31:30,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 463 transitions, 5525 flow [2022-11-18 20:31:31,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 463 transitions, 5364 flow, removed 51 selfloop flow, removed 12 redundant places. [2022-11-18 20:31:31,033 INFO L231 Difference]: Finished difference. Result has 320 places, 366 transitions, 4211 flow [2022-11-18 20:31:31,034 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=3855, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=4211, PETRI_PLACES=320, PETRI_TRANSITIONS=366} [2022-11-18 20:31:31,034 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 167 predicate places. [2022-11-18 20:31:31,035 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 366 transitions, 4211 flow [2022-11-18 20:31:31,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 85.04545454545455) internal successors, (1871), 22 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states 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 20:31:31,036 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:31,037 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:31,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:31:31,037 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 20:31:31,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:31,038 INFO L85 PathProgramCache]: Analyzing trace with hash -3773032, now seen corresponding path program 5 times [2022-11-18 20:31:31,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:31,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692512562] [2022-11-18 20:31:31,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:31,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:32,608 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 20:31:32,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:32,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692512562] [2022-11-18 20:31:32,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692512562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:32,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:32,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-18 20:31:32,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418486125] [2022-11-18 20:31:32,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:32,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:31:32,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:32,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:31:32,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:31:32,612 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 184 [2022-11-18 20:31:32,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 366 transitions, 4211 flow. Second operand has 25 states, 25 states have (on average 83.84) internal successors, (2096), 25 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states 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 20:31:32,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:32,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 184 [2022-11-18 20:31:32,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:39,070 INFO L130 PetriNetUnfolder]: 7198/15944 cut-off events. [2022-11-18 20:31:39,070 INFO L131 PetriNetUnfolder]: For 164997/229842 co-relation queries the response was YES. [2022-11-18 20:31:39,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74703 conditions, 15944 events. 7198/15944 cut-off events. For 164997/229842 co-relation queries the response was YES. Maximal size of possible extension queue 522. Compared 146368 event pairs, 3577 based on Foata normal form. 1249/15799 useless extension candidates. Maximal degree in co-relation 71202. Up to 9804 conditions per place. [2022-11-18 20:31:39,278 INFO L137 encePairwiseOnDemand]: 159/184 looper letters, 275 selfloop transitions, 128 changer transitions 17/487 dead transitions. [2022-11-18 20:31:39,278 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 487 transitions, 5967 flow [2022-11-18 20:31:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-18 20:31:39,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-18 20:31:39,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2347 transitions. [2022-11-18 20:31:39,282 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4905936454849498 [2022-11-18 20:31:39,283 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2347 transitions. [2022-11-18 20:31:39,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2347 transitions. [2022-11-18 20:31:39,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:39,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2347 transitions. [2022-11-18 20:31:39,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 90.26923076923077) internal successors, (2347), 26 states have internal predecessors, (2347), 0 states have call successors, (0), 0 states 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 20:31:39,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 184.0) internal successors, (4968), 27 states have internal predecessors, (4968), 0 states have call successors, (0), 0 states 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 20:31:39,295 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 184.0) internal successors, (4968), 27 states have internal predecessors, (4968), 0 states have call successors, (0), 0 states 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 20:31:39,295 INFO L175 Difference]: Start difference. First operand has 320 places, 366 transitions, 4211 flow. Second operand 26 states and 2347 transitions. [2022-11-18 20:31:39,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 487 transitions, 5967 flow [2022-11-18 20:31:40,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 487 transitions, 5861 flow, removed 6 selfloop flow, removed 14 redundant places. [2022-11-18 20:31:40,033 INFO L231 Difference]: Finished difference. Result has 338 places, 381 transitions, 4703 flow [2022-11-18 20:31:40,033 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=4107, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=4703, PETRI_PLACES=338, PETRI_TRANSITIONS=381} [2022-11-18 20:31:40,034 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 185 predicate places. [2022-11-18 20:31:40,034 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 381 transitions, 4703 flow [2022-11-18 20:31:40,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 83.84) internal successors, (2096), 25 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states 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 20:31:40,034 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:40,034 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:40,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:31:40,035 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 20:31:40,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:40,035 INFO L85 PathProgramCache]: Analyzing trace with hash 5164268, now seen corresponding path program 6 times [2022-11-18 20:31:40,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:40,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90307656] [2022-11-18 20:31:40,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:40,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:41,362 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 20:31:41,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:41,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90307656] [2022-11-18 20:31:41,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90307656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:41,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:41,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-18 20:31:41,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389788653] [2022-11-18 20:31:41,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:41,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 20:31:41,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:41,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 20:31:41,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-11-18 20:31:41,366 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 184 [2022-11-18 20:31:41,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 381 transitions, 4703 flow. Second operand has 22 states, 22 states have (on average 85.04545454545455) internal successors, (1871), 22 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states 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 20:31:41,367 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:41,367 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 184 [2022-11-18 20:31:41,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:47,736 INFO L130 PetriNetUnfolder]: 7369/16383 cut-off events. [2022-11-18 20:31:47,737 INFO L131 PetriNetUnfolder]: For 198689/276821 co-relation queries the response was YES. [2022-11-18 20:31:47,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80554 conditions, 16383 events. 7369/16383 cut-off events. For 198689/276821 co-relation queries the response was YES. Maximal size of possible extension queue 532. Compared 151850 event pairs, 3432 based on Foata normal form. 1547/16531 useless extension candidates. Maximal degree in co-relation 76144. Up to 9727 conditions per place. [2022-11-18 20:31:47,993 INFO L137 encePairwiseOnDemand]: 162/184 looper letters, 277 selfloop transitions, 132 changer transitions 14/491 dead transitions. [2022-11-18 20:31:47,993 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 491 transitions, 6305 flow [2022-11-18 20:31:47,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-18 20:31:47,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-18 20:31:47,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2387 transitions. [2022-11-18 20:31:47,998 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49895484949832775 [2022-11-18 20:31:47,998 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2387 transitions. [2022-11-18 20:31:47,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2387 transitions. [2022-11-18 20:31:47,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:48,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2387 transitions. [2022-11-18 20:31:48,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 91.8076923076923) internal successors, (2387), 26 states have internal predecessors, (2387), 0 states have call successors, (0), 0 states 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 20:31:48,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 184.0) internal successors, (4968), 27 states have internal predecessors, (4968), 0 states have call successors, (0), 0 states 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 20:31:48,011 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 184.0) internal successors, (4968), 27 states have internal predecessors, (4968), 0 states have call successors, (0), 0 states 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 20:31:48,011 INFO L175 Difference]: Start difference. First operand has 338 places, 381 transitions, 4703 flow. Second operand 26 states and 2387 transitions. [2022-11-18 20:31:48,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 491 transitions, 6305 flow [2022-11-18 20:31:49,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 491 transitions, 6186 flow, removed 16 selfloop flow, removed 16 redundant places. [2022-11-18 20:31:49,061 INFO L231 Difference]: Finished difference. Result has 351 places, 385 transitions, 4984 flow [2022-11-18 20:31:49,062 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=4586, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=4984, PETRI_PLACES=351, PETRI_TRANSITIONS=385} [2022-11-18 20:31:49,063 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 198 predicate places. [2022-11-18 20:31:49,063 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 385 transitions, 4984 flow [2022-11-18 20:31:49,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 85.04545454545455) internal successors, (1871), 22 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states 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 20:31:49,064 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:49,064 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:49,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:31:49,064 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 20:31:49,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:49,065 INFO L85 PathProgramCache]: Analyzing trace with hash 215508436, now seen corresponding path program 4 times [2022-11-18 20:31:49,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:49,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634383123] [2022-11-18 20:31:49,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:49,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:50,486 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 20:31:50,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:50,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634383123] [2022-11-18 20:31:50,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634383123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:50,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:50,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-18 20:31:50,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972143364] [2022-11-18 20:31:50,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:50,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:31:50,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:50,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:31:50,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:31:50,491 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 184 [2022-11-18 20:31:50,493 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 385 transitions, 4984 flow. Second operand has 25 states, 25 states have (on average 83.84) internal successors, (2096), 25 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states 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 20:31:50,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:50,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 184 [2022-11-18 20:31:50,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:57,257 INFO L130 PetriNetUnfolder]: 7796/17192 cut-off events. [2022-11-18 20:31:57,258 INFO L131 PetriNetUnfolder]: For 291573/357953 co-relation queries the response was YES. [2022-11-18 20:31:57,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88117 conditions, 17192 events. 7796/17192 cut-off events. For 291573/357953 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 159872 event pairs, 3321 based on Foata normal form. 818/16650 useless extension candidates. Maximal degree in co-relation 82675. Up to 11421 conditions per place. [2022-11-18 20:31:57,545 INFO L137 encePairwiseOnDemand]: 159/184 looper letters, 309 selfloop transitions, 136 changer transitions 4/516 dead transitions. [2022-11-18 20:31:57,545 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 516 transitions, 7122 flow [2022-11-18 20:31:57,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 20:31:57,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-11-18 20:31:57,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 2261 transitions. [2022-11-18 20:31:57,548 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4915217391304348 [2022-11-18 20:31:57,548 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 2261 transitions. [2022-11-18 20:31:57,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 2261 transitions. [2022-11-18 20:31:57,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:57,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 2261 transitions. [2022-11-18 20:31:57,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 90.44) internal successors, (2261), 25 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states 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 20:31:57,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 184.0) internal successors, (4784), 26 states have internal predecessors, (4784), 0 states have call successors, (0), 0 states 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 20:31:57,559 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 184.0) internal successors, (4784), 26 states have internal predecessors, (4784), 0 states have call successors, (0), 0 states 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 20:31:57,559 INFO L175 Difference]: Start difference. First operand has 351 places, 385 transitions, 4984 flow. Second operand 25 states and 2261 transitions. [2022-11-18 20:31:57,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 516 transitions, 7122 flow [2022-11-18 20:31:59,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 516 transitions, 6866 flow, removed 25 selfloop flow, removed 22 redundant places. [2022-11-18 20:31:59,388 INFO L231 Difference]: Finished difference. Result has 361 places, 419 transitions, 5665 flow [2022-11-18 20:31:59,389 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=4755, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=5665, PETRI_PLACES=361, PETRI_TRANSITIONS=419} [2022-11-18 20:31:59,389 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 208 predicate places. [2022-11-18 20:31:59,390 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 419 transitions, 5665 flow [2022-11-18 20:31:59,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 83.84) internal successors, (2096), 25 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states 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 20:31:59,390 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:59,390 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:59,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:31:59,391 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 20:31:59,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:59,391 INFO L85 PathProgramCache]: Analyzing trace with hash -199728760, now seen corresponding path program 7 times [2022-11-18 20:31:59,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:59,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986404715] [2022-11-18 20:31:59,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:59,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:00,685 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 20:32:00,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:00,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986404715] [2022-11-18 20:32:00,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986404715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:00,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:00,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-18 20:32:00,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305826591] [2022-11-18 20:32:00,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:00,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:32:00,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:00,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:32:00,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:32:00,690 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 184 [2022-11-18 20:32:00,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 419 transitions, 5665 flow. Second operand has 25 states, 25 states have (on average 83.84) internal successors, (2096), 25 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states 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 20:32:00,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:00,692 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 184 [2022-11-18 20:32:00,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand