./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 e04fb08f 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_79a5da93-cbb8-4cf9-bd4a-8738774d0c4e/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a5da93-cbb8-4cf9-bd4a-8738774d0c4e/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a5da93-cbb8-4cf9-bd4a-8738774d0c4e/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a5da93-cbb8-4cf9-bd4a-8738774d0c4e/bin/uautomizer-tPACEb0tL8/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_79a5da93-cbb8-4cf9-bd4a-8738774d0c4e/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a5da93-cbb8-4cf9-bd4a-8738774d0c4e/bin/uautomizer-tPACEb0tL8 --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-e04fb08 [2022-11-16 12:26:15,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:26:15,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:26:15,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:26:15,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:26:15,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:26:15,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:26:15,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:26:15,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:26:15,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:26:15,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:26:15,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:26:15,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:26:15,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:26:15,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:26:16,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:26:16,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:26:16,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:26:16,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:26:16,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:26:16,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:26:16,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:26:16,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:26:16,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:26:16,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:26:16,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:26:16,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:26:16,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:26:16,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:26:16,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:26:16,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:26:16,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:26:16,039 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:26:16,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:26:16,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:26:16,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:26:16,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:26:16,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:26:16,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:26:16,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:26:16,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:26:16,048 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a5da93-cbb8-4cf9-bd4a-8738774d0c4e/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 12:26:16,093 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:26:16,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:26:16,095 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:26:16,095 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:26:16,096 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:26:16,096 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:26:16,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:26:16,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:26:16,097 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:26:16,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:26:16,099 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:26:16,099 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:26:16,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:26:16,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:26:16,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:26:16,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:26:16,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:26:16,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:26:16,101 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 12:26:16,101 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:26:16,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:26:16,102 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:26:16,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:26:16,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:26:16,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:26:16,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:26:16,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:26:16,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:26:16,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:26:16,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:26:16,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:26:16,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:26:16,105 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:26:16,106 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:26:16,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:26:16,106 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_79a5da93-cbb8-4cf9-bd4a-8738774d0c4e/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a5da93-cbb8-4cf9-bd4a-8738774d0c4e/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02b1c265b98bd14cc97fe77543b4e06699576e2091fa3d4102d013e6b3937418 [2022-11-16 12:26:16,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:26:16,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:26:16,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:26:16,546 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:26:16,547 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:26:16,549 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a5da93-cbb8-4cf9-bd4a-8738774d0c4e/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2022-11-16 12:26:16,658 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a5da93-cbb8-4cf9-bd4a-8738774d0c4e/bin/uautomizer-tPACEb0tL8/data/2c7bec4b4/67c842c4e77d44b6b1ce3f86a40c3f08/FLAG7b9340c07 [2022-11-16 12:26:17,457 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:26:17,458 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a5da93-cbb8-4cf9-bd4a-8738774d0c4e/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2022-11-16 12:26:17,486 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a5da93-cbb8-4cf9-bd4a-8738774d0c4e/bin/uautomizer-tPACEb0tL8/data/2c7bec4b4/67c842c4e77d44b6b1ce3f86a40c3f08/FLAG7b9340c07 [2022-11-16 12:26:17,646 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a5da93-cbb8-4cf9-bd4a-8738774d0c4e/bin/uautomizer-tPACEb0tL8/data/2c7bec4b4/67c842c4e77d44b6b1ce3f86a40c3f08 [2022-11-16 12:26:17,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:26:17,651 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:26:17,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:26:17,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:26:17,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:26:17,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:26:17" (1/1) ... [2022-11-16 12:26:17,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a3817aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:17, skipping insertion in model container [2022-11-16 12:26:17,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:26:17" (1/1) ... [2022-11-16 12:26:17,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:26:17,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:26:17,976 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 12:26:18,556 WARN L229 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_79a5da93-cbb8-4cf9-bd4a-8738774d0c4e/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i[75009,75022] [2022-11-16 12:26:18,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:26:18,621 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:26:18,636 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 12:26:18,684 WARN L229 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_79a5da93-cbb8-4cf9-bd4a-8738774d0c4e/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i[75009,75022] [2022-11-16 12:26:18,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:26:18,889 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:26:18,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:18 WrapperNode [2022-11-16 12:26:18,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:26:18,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:26:18,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:26:18,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:26:18,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:18" (1/1) ... [2022-11-16 12:26:18,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:18" (1/1) ... [2022-11-16 12:26:19,009 INFO L138 Inliner]: procedures = 468, calls = 52, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 134 [2022-11-16 12:26:19,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:26:19,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:26:19,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:26:19,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:26:19,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:18" (1/1) ... [2022-11-16 12:26:19,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:18" (1/1) ... [2022-11-16 12:26:19,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:18" (1/1) ... [2022-11-16 12:26:19,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:18" (1/1) ... [2022-11-16 12:26:19,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:18" (1/1) ... [2022-11-16 12:26:19,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:18" (1/1) ... [2022-11-16 12:26:19,075 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:18" (1/1) ... [2022-11-16 12:26:19,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:18" (1/1) ... [2022-11-16 12:26:19,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:26:19,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:26:19,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:26:19,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:26:19,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:18" (1/1) ... [2022-11-16 12:26:19,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:26:19,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a5da93-cbb8-4cf9-bd4a-8738774d0c4e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:26:19,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a5da93-cbb8-4cf9-bd4a-8738774d0c4e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:26:19,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79a5da93-cbb8-4cf9-bd4a-8738774d0c4e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:26:19,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:26:19,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:26:19,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:26:19,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:26:19,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:26:19,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:26:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:26:19,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:26:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-16 12:26:19,206 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-16 12:26:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:26:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:26:19,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:26:19,208 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:26:19,642 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:26:19,644 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:26:19,972 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:26:20,006 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:26:20,006 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:26:20,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:26:20 BoogieIcfgContainer [2022-11-16 12:26:20,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:26:20,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:26:20,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:26:20,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:26:20,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:26:17" (1/3) ... [2022-11-16 12:26:20,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65498239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:26:20, skipping insertion in model container [2022-11-16 12:26:20,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:18" (2/3) ... [2022-11-16 12:26:20,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65498239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:26:20, skipping insertion in model container [2022-11-16 12:26:20,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:26:20" (3/3) ... [2022-11-16 12:26:20,021 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2022-11-16 12:26:20,032 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:26:20,045 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:26:20,045 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 12:26:20,046 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:26:20,129 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 12:26:20,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 184 transitions, 384 flow [2022-11-16 12:26:20,287 INFO L130 PetriNetUnfolder]: 10/227 cut-off events. [2022-11-16 12:26:20,287 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:26:20,294 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. [2022-11-16 12:26:20,295 INFO L82 GeneralOperation]: Start removeDead. Operand has 182 places, 184 transitions, 384 flow [2022-11-16 12:26:20,301 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 150 transitions, 309 flow [2022-11-16 12:26:20,314 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:26:20,325 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;@6042a934, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:26:20,326 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-16 12:26:20,370 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-11-16 12:26:20,370 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:26:20,371 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:26:20,372 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] [2022-11-16 12:26:20,373 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:26:20,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:20,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1235700042, now seen corresponding path program 1 times [2022-11-16 12:26:20,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:26:20,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129066467] [2022-11-16 12:26:20,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:26:20,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:26:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:22,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:26:22,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:26:22,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129066467] [2022-11-16 12:26:22,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129066467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:26:22,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:26:22,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 12:26:22,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032972084] [2022-11-16 12:26:22,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:22,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 12:26:22,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:26:22,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 12:26:22,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:26:22,880 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 184 [2022-11-16 12:26:22,887 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) [2022-11-16 12:26:22,887 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:26:22,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 184 [2022-11-16 12:26:22,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:26:25,150 INFO L130 PetriNetUnfolder]: 2160/4594 cut-off events. [2022-11-16 12:26:25,150 INFO L131 PetriNetUnfolder]: For 22/26 co-relation queries the response was YES. [2022-11-16 12:26:25,167 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. [2022-11-16 12:26:25,196 INFO L137 encePairwiseOnDemand]: 164/184 looper letters, 107 selfloop transitions, 19 changer transitions 4/201 dead transitions. [2022-11-16 12:26:25,196 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 201 transitions, 677 flow [2022-11-16 12:26:25,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 12:26:25,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-16 12:26:25,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1518 transitions. [2022-11-16 12:26:25,226 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.515625 [2022-11-16 12:26:25,227 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1518 transitions. [2022-11-16 12:26:25,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1518 transitions. [2022-11-16 12:26:25,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:26:25,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1518 transitions. [2022-11-16 12:26:25,246 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) [2022-11-16 12:26:25,270 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) [2022-11-16 12:26:25,273 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) [2022-11-16 12:26:25,275 INFO L175 Difference]: Start difference. First operand has 153 places, 150 transitions, 309 flow. Second operand 16 states and 1518 transitions. [2022-11-16 12:26:25,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 201 transitions, 677 flow [2022-11-16 12:26:25,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 201 transitions, 669 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 12:26:25,291 INFO L231 Difference]: Finished difference. Result has 168 places, 151 transitions, 387 flow [2022-11-16 12:26:25,295 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} [2022-11-16 12:26:25,302 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 15 predicate places. [2022-11-16 12:26:25,302 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 151 transitions, 387 flow [2022-11-16 12:26:25,304 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) [2022-11-16 12:26:25,304 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:26:25,305 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] [2022-11-16 12:26:25,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:26:25,305 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:26:25,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:25,308 INFO L85 PathProgramCache]: Analyzing trace with hash -988754059, now seen corresponding path program 1 times [2022-11-16 12:26:25,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:26:25,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584246653] [2022-11-16 12:26:25,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:26:25,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:26:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:27,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:26:27,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:26:27,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584246653] [2022-11-16 12:26:27,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584246653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:26:27,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:26:27,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-16 12:26:27,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241094941] [2022-11-16 12:26:27,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:27,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-16 12:26:27,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:26:27,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-16 12:26:27,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:26:27,334 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 184 [2022-11-16 12:26:27,338 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) [2022-11-16 12:26:27,338 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:26:27,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 184 [2022-11-16 12:26:27,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:26:29,859 INFO L130 PetriNetUnfolder]: 2419/5197 cut-off events. [2022-11-16 12:26:29,859 INFO L131 PetriNetUnfolder]: For 2177/2184 co-relation queries the response was YES. [2022-11-16 12:26:29,876 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. [2022-11-16 12:26:29,904 INFO L137 encePairwiseOnDemand]: 162/184 looper letters, 133 selfloop transitions, 35 changer transitions 2/239 dead transitions. [2022-11-16 12:26:29,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 239 transitions, 952 flow [2022-11-16 12:26:29,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:26:29,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:26:29,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1850 transitions. [2022-11-16 12:26:29,911 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5027173913043478 [2022-11-16 12:26:29,912 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1850 transitions. [2022-11-16 12:26:29,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1850 transitions. [2022-11-16 12:26:29,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:26:29,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1850 transitions. [2022-11-16 12:26:29,919 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) [2022-11-16 12:26:29,929 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) [2022-11-16 12:26:29,931 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) [2022-11-16 12:26:29,931 INFO L175 Difference]: Start difference. First operand has 168 places, 151 transitions, 387 flow. Second operand 20 states and 1850 transitions. [2022-11-16 12:26:29,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 239 transitions, 952 flow [2022-11-16 12:26:29,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 239 transitions, 941 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 12:26:29,953 INFO L231 Difference]: Finished difference. Result has 186 places, 171 transitions, 569 flow [2022-11-16 12:26:29,953 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} [2022-11-16 12:26:29,955 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 33 predicate places. [2022-11-16 12:26:29,955 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 171 transitions, 569 flow [2022-11-16 12:26:29,956 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) [2022-11-16 12:26:29,957 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:26:29,957 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] [2022-11-16 12:26:29,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:26:29,957 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:26:29,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:29,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1864930223, now seen corresponding path program 1 times [2022-11-16 12:26:29,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:26:29,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850423589] [2022-11-16 12:26:29,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:26:29,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:26:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:31,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:26:31,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:26:31,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850423589] [2022-11-16 12:26:31,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850423589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:26:31,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:26:31,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:26:31,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527675595] [2022-11-16 12:26:31,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:31,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:26:31,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:26:31,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:26:31,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:26:31,792 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 184 [2022-11-16 12:26:31,795 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) [2022-11-16 12:26:31,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:26:31,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 184 [2022-11-16 12:26:31,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:26:34,513 INFO L130 PetriNetUnfolder]: 3179/6946 cut-off events. [2022-11-16 12:26:34,513 INFO L131 PetriNetUnfolder]: For 9164/12335 co-relation queries the response was YES. [2022-11-16 12:26:34,558 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. [2022-11-16 12:26:34,734 INFO L137 encePairwiseOnDemand]: 165/184 looper letters, 140 selfloop transitions, 37 changer transitions 5/254 dead transitions. [2022-11-16 12:26:34,734 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 254 transitions, 1254 flow [2022-11-16 12:26:34,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:26:34,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 12:26:34,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1691 transitions. [2022-11-16 12:26:34,752 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5105676328502415 [2022-11-16 12:26:34,753 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1691 transitions. [2022-11-16 12:26:34,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1691 transitions. [2022-11-16 12:26:34,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:26:34,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1691 transitions. [2022-11-16 12:26:34,764 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) [2022-11-16 12:26:34,775 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) [2022-11-16 12:26:34,779 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) [2022-11-16 12:26:34,779 INFO L175 Difference]: Start difference. First operand has 186 places, 171 transitions, 569 flow. Second operand 18 states and 1691 transitions. [2022-11-16 12:26:34,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 254 transitions, 1254 flow [2022-11-16 12:26:34,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 254 transitions, 1170 flow, removed 31 selfloop flow, removed 11 redundant places. [2022-11-16 12:26:34,841 INFO L231 Difference]: Finished difference. Result has 198 places, 188 transitions, 735 flow [2022-11-16 12:26:34,842 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} [2022-11-16 12:26:34,845 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 45 predicate places. [2022-11-16 12:26:34,845 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 188 transitions, 735 flow [2022-11-16 12:26:34,846 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) [2022-11-16 12:26:34,846 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:26:34,847 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] [2022-11-16 12:26:34,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:26:34,848 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:26:34,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:34,849 INFO L85 PathProgramCache]: Analyzing trace with hash -768630694, now seen corresponding path program 1 times [2022-11-16 12:26:34,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:26:34,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316659872] [2022-11-16 12:26:34,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:26:34,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:26:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:37,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:26:37,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:26:37,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316659872] [2022-11-16 12:26:37,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316659872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:26:37,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:26:37,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-16 12:26:37,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881712897] [2022-11-16 12:26:37,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:37,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 12:26:37,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:26:37,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 12:26:37,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:26:37,045 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 184 [2022-11-16 12:26:37,059 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) [2022-11-16 12:26:37,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:26:37,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 184 [2022-11-16 12:26:37,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:26:42,072 INFO L130 PetriNetUnfolder]: 4156/8851 cut-off events. [2022-11-16 12:26:42,073 INFO L131 PetriNetUnfolder]: For 11322/15095 co-relation queries the response was YES. [2022-11-16 12:26:42,138 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. [2022-11-16 12:26:42,182 INFO L137 encePairwiseOnDemand]: 162/184 looper letters, 184 selfloop transitions, 70 changer transitions 4/326 dead transitions. [2022-11-16 12:26:42,183 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 326 transitions, 1810 flow [2022-11-16 12:26:42,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 12:26:42,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-16 12:26:42,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2222 transitions. [2022-11-16 12:26:42,193 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5031702898550725 [2022-11-16 12:26:42,194 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2222 transitions. [2022-11-16 12:26:42,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2222 transitions. [2022-11-16 12:26:42,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:26:42,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2222 transitions. [2022-11-16 12:26:42,207 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) [2022-11-16 12:26:42,217 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) [2022-11-16 12:26:42,222 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) [2022-11-16 12:26:42,222 INFO L175 Difference]: Start difference. First operand has 198 places, 188 transitions, 735 flow. Second operand 24 states and 2222 transitions. [2022-11-16 12:26:42,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 326 transitions, 1810 flow [2022-11-16 12:26:42,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 326 transitions, 1771 flow, removed 12 selfloop flow, removed 8 redundant places. [2022-11-16 12:26:42,357 INFO L231 Difference]: Finished difference. Result has 223 places, 219 transitions, 1162 flow [2022-11-16 12:26:42,363 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} [2022-11-16 12:26:42,364 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 70 predicate places. [2022-11-16 12:26:42,365 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 219 transitions, 1162 flow [2022-11-16 12:26:42,366 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) [2022-11-16 12:26:42,366 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:26:42,366 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:42,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:26:42,367 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:26:42,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:42,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1280434954, now seen corresponding path program 1 times [2022-11-16 12:26:42,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:26:42,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211150628] [2022-11-16 12:26:42,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:26:42,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:26:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:44,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:26:44,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:26:44,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211150628] [2022-11-16 12:26:44,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211150628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:26:44,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:26:44,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-16 12:26:44,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970950996] [2022-11-16 12:26:44,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:44,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 12:26:44,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:26:44,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 12:26:44,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:26:44,415 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 184 [2022-11-16 12:26:44,417 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) [2022-11-16 12:26:44,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:26:44,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 184 [2022-11-16 12:26:44,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:26:49,254 INFO L130 PetriNetUnfolder]: 4664/10153 cut-off events. [2022-11-16 12:26:49,254 INFO L131 PetriNetUnfolder]: For 29540/47527 co-relation queries the response was YES. [2022-11-16 12:26:49,306 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. [2022-11-16 12:26:49,349 INFO L137 encePairwiseOnDemand]: 159/184 looper letters, 171 selfloop transitions, 74 changer transitions 13/325 dead transitions. [2022-11-16 12:26:49,349 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 325 transitions, 2270 flow [2022-11-16 12:26:49,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 12:26:49,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-16 12:26:49,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1996 transitions. [2022-11-16 12:26:49,357 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49308300395256915 [2022-11-16 12:26:49,357 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1996 transitions. [2022-11-16 12:26:49,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1996 transitions. [2022-11-16 12:26:49,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:26:49,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1996 transitions. [2022-11-16 12:26:49,365 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) [2022-11-16 12:26:49,372 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) [2022-11-16 12:26:49,374 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) [2022-11-16 12:26:49,374 INFO L175 Difference]: Start difference. First operand has 223 places, 219 transitions, 1162 flow. Second operand 22 states and 1996 transitions. [2022-11-16 12:26:49,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 325 transitions, 2270 flow [2022-11-16 12:26:49,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 325 transitions, 2183 flow, removed 19 selfloop flow, removed 12 redundant places. [2022-11-16 12:26:49,512 INFO L231 Difference]: Finished difference. Result has 238 places, 237 transitions, 1481 flow [2022-11-16 12:26:49,512 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} [2022-11-16 12:26:49,513 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 85 predicate places. [2022-11-16 12:26:49,513 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 237 transitions, 1481 flow [2022-11-16 12:26:49,515 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) [2022-11-16 12:26:49,515 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:26:49,515 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] [2022-11-16 12:26:49,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:26:49,516 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:26:49,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:49,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1152537874, now seen corresponding path program 2 times [2022-11-16 12:26:49,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:26:49,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556729533] [2022-11-16 12:26:49,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:26:49,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:26:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:51,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:26:51,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:26:51,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556729533] [2022-11-16 12:26:51,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556729533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:26:51,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:26:51,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-16 12:26:51,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187300965] [2022-11-16 12:26:51,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:51,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 12:26:51,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:26:51,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 12:26:51,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:26:51,435 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 184 [2022-11-16 12:26:51,441 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) [2022-11-16 12:26:51,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:26:51,441 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 184 [2022-11-16 12:26:51,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:26:56,944 INFO L130 PetriNetUnfolder]: 5048/11071 cut-off events. [2022-11-16 12:26:56,944 INFO L131 PetriNetUnfolder]: For 38908/53510 co-relation queries the response was YES. [2022-11-16 12:26:56,996 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. [2022-11-16 12:26:57,040 INFO L137 encePairwiseOnDemand]: 162/184 looper letters, 190 selfloop transitions, 95 changer transitions 16/369 dead transitions. [2022-11-16 12:26:57,041 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 369 transitions, 2835 flow [2022-11-16 12:26:57,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-16 12:26:57,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-16 12:26:57,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2393 transitions. [2022-11-16 12:26:57,048 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5002090301003345 [2022-11-16 12:26:57,048 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2393 transitions. [2022-11-16 12:26:57,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2393 transitions. [2022-11-16 12:26:57,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:26:57,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2393 transitions. [2022-11-16 12:26:57,055 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) [2022-11-16 12:26:57,063 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) [2022-11-16 12:26:57,065 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) [2022-11-16 12:26:57,066 INFO L175 Difference]: Start difference. First operand has 238 places, 237 transitions, 1481 flow. Second operand 26 states and 2393 transitions. [2022-11-16 12:26:57,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 369 transitions, 2835 flow [2022-11-16 12:26:57,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 369 transitions, 2768 flow, removed 8 selfloop flow, removed 13 redundant places. [2022-11-16 12:26:57,305 INFO L231 Difference]: Finished difference. Result has 257 places, 254 transitions, 1884 flow [2022-11-16 12:26:57,306 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} [2022-11-16 12:26:57,309 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 104 predicate places. [2022-11-16 12:26:57,309 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 254 transitions, 1884 flow [2022-11-16 12:26:57,310 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) [2022-11-16 12:26:57,310 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:26:57,310 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] [2022-11-16 12:26:57,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:26:57,311 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:26:57,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:57,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1143283444, now seen corresponding path program 3 times [2022-11-16 12:26:57,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:26:57,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464831621] [2022-11-16 12:26:57,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:26:57,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:26:57,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:59,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:26:59,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:26:59,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464831621] [2022-11-16 12:26:59,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464831621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:26:59,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:26:59,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-16 12:26:59,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281002325] [2022-11-16 12:26:59,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:59,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 12:26:59,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:26:59,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 12:26:59,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:26:59,422 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 184 [2022-11-16 12:26:59,425 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) [2022-11-16 12:26:59,426 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:26:59,426 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 184 [2022-11-16 12:26:59,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:04,453 INFO L130 PetriNetUnfolder]: 5217/11510 cut-off events. [2022-11-16 12:27:04,454 INFO L131 PetriNetUnfolder]: For 54860/70973 co-relation queries the response was YES. [2022-11-16 12:27:04,536 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. [2022-11-16 12:27:04,574 INFO L137 encePairwiseOnDemand]: 159/184 looper letters, 170 selfloop transitions, 104 changer transitions 12/353 dead transitions. [2022-11-16 12:27:04,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 353 transitions, 2975 flow [2022-11-16 12:27:04,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 12:27:04,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-11-16 12:27:04,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 2265 transitions. [2022-11-16 12:27:04,580 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4923913043478261 [2022-11-16 12:27:04,581 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 2265 transitions. [2022-11-16 12:27:04,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 2265 transitions. [2022-11-16 12:27:04,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:04,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 2265 transitions. [2022-11-16 12:27:04,588 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) [2022-11-16 12:27:04,596 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) [2022-11-16 12:27:04,599 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) [2022-11-16 12:27:04,599 INFO L175 Difference]: Start difference. First operand has 257 places, 254 transitions, 1884 flow. Second operand 25 states and 2265 transitions. [2022-11-16 12:27:04,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 353 transitions, 2975 flow [2022-11-16 12:27:04,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 353 transitions, 2797 flow, removed 36 selfloop flow, removed 19 redundant places. [2022-11-16 12:27:04,855 INFO L231 Difference]: Finished difference. Result has 266 places, 257 transitions, 2031 flow [2022-11-16 12:27:04,856 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} [2022-11-16 12:27:04,857 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 113 predicate places. [2022-11-16 12:27:04,857 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 257 transitions, 2031 flow [2022-11-16 12:27:04,858 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) [2022-11-16 12:27:04,859 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:04,859 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] [2022-11-16 12:27:04,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:27:04,859 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:27:04,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:04,859 INFO L85 PathProgramCache]: Analyzing trace with hash 309925846, now seen corresponding path program 2 times [2022-11-16 12:27:04,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:04,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493252352] [2022-11-16 12:27:04,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:04,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:06,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:06,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:06,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493252352] [2022-11-16 12:27:06,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493252352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:06,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:06,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-16 12:27:06,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098102103] [2022-11-16 12:27:06,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:06,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 12:27:06,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:06,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 12:27:06,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:27:06,466 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 184 [2022-11-16 12:27:06,468 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) [2022-11-16 12:27:06,468 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:06,468 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 184 [2022-11-16 12:27:06,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:12,095 INFO L130 PetriNetUnfolder]: 6029/13073 cut-off events. [2022-11-16 12:27:12,096 INFO L131 PetriNetUnfolder]: For 80704/119451 co-relation queries the response was YES. [2022-11-16 12:27:12,177 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. [2022-11-16 12:27:12,215 INFO L137 encePairwiseOnDemand]: 161/184 looper letters, 272 selfloop transitions, 135 changer transitions 7/482 dead transitions. [2022-11-16 12:27:12,215 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 482 transitions, 4767 flow [2022-11-16 12:27:12,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-16 12:27:12,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-11-16 12:27:12,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2496 transitions. [2022-11-16 12:27:12,221 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5024154589371981 [2022-11-16 12:27:12,221 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 2496 transitions. [2022-11-16 12:27:12,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 2496 transitions. [2022-11-16 12:27:12,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:12,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 2496 transitions. [2022-11-16 12:27:12,228 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) [2022-11-16 12:27:12,236 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) [2022-11-16 12:27:12,238 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) [2022-11-16 12:27:12,238 INFO L175 Difference]: Start difference. First operand has 266 places, 257 transitions, 2031 flow. Second operand 27 states and 2496 transitions. [2022-11-16 12:27:12,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 482 transitions, 4767 flow [2022-11-16 12:27:12,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 482 transitions, 4542 flow, removed 29 selfloop flow, removed 19 redundant places. [2022-11-16 12:27:12,736 INFO L231 Difference]: Finished difference. Result has 284 places, 337 transitions, 3350 flow [2022-11-16 12:27:12,736 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} [2022-11-16 12:27:12,737 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 131 predicate places. [2022-11-16 12:27:12,737 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 337 transitions, 3350 flow [2022-11-16 12:27:12,738 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) [2022-11-16 12:27:12,739 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:12,739 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] [2022-11-16 12:27:12,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:27:12,739 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:27:12,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:12,740 INFO L85 PathProgramCache]: Analyzing trace with hash 5481046, now seen corresponding path program 3 times [2022-11-16 12:27:12,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:12,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127110303] [2022-11-16 12:27:12,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:12,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:14,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:14,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:14,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127110303] [2022-11-16 12:27:14,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127110303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:14,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:14,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-16 12:27:14,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904727632] [2022-11-16 12:27:14,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:14,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 12:27:14,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:14,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 12:27:14,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:27:14,380 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 184 [2022-11-16 12:27:14,382 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) [2022-11-16 12:27:14,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:14,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 184 [2022-11-16 12:27:14,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:20,495 INFO L130 PetriNetUnfolder]: 6380/13880 cut-off events. [2022-11-16 12:27:20,495 INFO L131 PetriNetUnfolder]: For 112119/164596 co-relation queries the response was YES. [2022-11-16 12:27:20,616 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. [2022-11-16 12:27:20,656 INFO L137 encePairwiseOnDemand]: 161/184 looper letters, 294 selfloop transitions, 129 changer transitions 7/498 dead transitions. [2022-11-16 12:27:20,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 498 transitions, 5447 flow [2022-11-16 12:27:20,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-16 12:27:20,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-16 12:27:20,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2408 transitions. [2022-11-16 12:27:20,662 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5033444816053512 [2022-11-16 12:27:20,662 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2408 transitions. [2022-11-16 12:27:20,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2408 transitions. [2022-11-16 12:27:20,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:20,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2408 transitions. [2022-11-16 12:27:20,668 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) [2022-11-16 12:27:20,674 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) [2022-11-16 12:27:20,676 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) [2022-11-16 12:27:20,677 INFO L175 Difference]: Start difference. First operand has 284 places, 337 transitions, 3350 flow. Second operand 26 states and 2408 transitions. [2022-11-16 12:27:20,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 498 transitions, 5447 flow [2022-11-16 12:27:21,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 498 transitions, 5338 flow, removed 42 selfloop flow, removed 10 redundant places. [2022-11-16 12:27:21,317 INFO L231 Difference]: Finished difference. Result has 307 places, 359 transitions, 3982 flow [2022-11-16 12:27:21,318 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} [2022-11-16 12:27:21,318 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 154 predicate places. [2022-11-16 12:27:21,318 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 359 transitions, 3982 flow [2022-11-16 12:27:21,319 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) [2022-11-16 12:27:21,319 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:21,319 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] [2022-11-16 12:27:21,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:27:21,319 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:27:21,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:21,320 INFO L85 PathProgramCache]: Analyzing trace with hash 309926198, now seen corresponding path program 4 times [2022-11-16 12:27:21,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:21,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803148088] [2022-11-16 12:27:21,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:21,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:21,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:22,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:22,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:22,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803148088] [2022-11-16 12:27:22,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803148088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:22,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:22,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-16 12:27:22,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537446796] [2022-11-16 12:27:22,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:22,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 12:27:22,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:22,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 12:27:22,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:27:22,695 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 184 [2022-11-16 12:27:22,697 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) [2022-11-16 12:27:22,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:22,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 184 [2022-11-16 12:27:22,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:28,766 INFO L130 PetriNetUnfolder]: 7041/15617 cut-off events. [2022-11-16 12:27:28,766 INFO L131 PetriNetUnfolder]: For 141558/191303 co-relation queries the response was YES. [2022-11-16 12:27:28,915 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. [2022-11-16 12:27:28,966 INFO L137 encePairwiseOnDemand]: 162/184 looper letters, 273 selfloop transitions, 106 changer transitions 16/463 dead transitions. [2022-11-16 12:27:28,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 463 transitions, 5525 flow [2022-11-16 12:27:28,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 12:27:28,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-16 12:27:28,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2028 transitions. [2022-11-16 12:27:28,971 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5009881422924901 [2022-11-16 12:27:28,971 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2028 transitions. [2022-11-16 12:27:28,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2028 transitions. [2022-11-16 12:27:28,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:28,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2028 transitions. [2022-11-16 12:27:28,975 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) [2022-11-16 12:27:28,981 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) [2022-11-16 12:27:28,983 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) [2022-11-16 12:27:28,983 INFO L175 Difference]: Start difference. First operand has 307 places, 359 transitions, 3982 flow. Second operand 22 states and 2028 transitions. [2022-11-16 12:27:28,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 463 transitions, 5525 flow [2022-11-16 12:27:29,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 463 transitions, 5364 flow, removed 51 selfloop flow, removed 12 redundant places. [2022-11-16 12:27:29,617 INFO L231 Difference]: Finished difference. Result has 320 places, 366 transitions, 4211 flow [2022-11-16 12:27:29,618 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} [2022-11-16 12:27:29,618 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 167 predicate places. [2022-11-16 12:27:29,619 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 366 transitions, 4211 flow [2022-11-16 12:27:29,619 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) [2022-11-16 12:27:29,619 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:29,620 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] [2022-11-16 12:27:29,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:27:29,620 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:27:29,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:29,621 INFO L85 PathProgramCache]: Analyzing trace with hash -3773032, now seen corresponding path program 5 times [2022-11-16 12:27:29,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:29,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061960546] [2022-11-16 12:27:29,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:29,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:31,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:31,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:31,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061960546] [2022-11-16 12:27:31,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061960546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:31,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:31,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-16 12:27:31,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2763299] [2022-11-16 12:27:31,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:31,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 12:27:31,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:31,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 12:27:31,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:27:31,280 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 184 [2022-11-16 12:27:31,281 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) [2022-11-16 12:27:31,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:31,281 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 184 [2022-11-16 12:27:31,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:38,253 INFO L130 PetriNetUnfolder]: 7198/15944 cut-off events. [2022-11-16 12:27:38,253 INFO L131 PetriNetUnfolder]: For 164997/229842 co-relation queries the response was YES. [2022-11-16 12:27:38,405 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. [2022-11-16 12:27:38,458 INFO L137 encePairwiseOnDemand]: 159/184 looper letters, 275 selfloop transitions, 128 changer transitions 17/487 dead transitions. [2022-11-16 12:27:38,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 487 transitions, 5967 flow [2022-11-16 12:27:38,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-16 12:27:38,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-16 12:27:38,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2347 transitions. [2022-11-16 12:27:38,463 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4905936454849498 [2022-11-16 12:27:38,463 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2347 transitions. [2022-11-16 12:27:38,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2347 transitions. [2022-11-16 12:27:38,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:38,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2347 transitions. [2022-11-16 12:27:38,467 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) [2022-11-16 12:27:38,473 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) [2022-11-16 12:27:38,474 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) [2022-11-16 12:27:38,474 INFO L175 Difference]: Start difference. First operand has 320 places, 366 transitions, 4211 flow. Second operand 26 states and 2347 transitions. [2022-11-16 12:27:38,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 487 transitions, 5967 flow [2022-11-16 12:27:39,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 487 transitions, 5861 flow, removed 6 selfloop flow, removed 14 redundant places. [2022-11-16 12:27:39,473 INFO L231 Difference]: Finished difference. Result has 338 places, 381 transitions, 4703 flow [2022-11-16 12:27:39,473 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} [2022-11-16 12:27:39,474 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 185 predicate places. [2022-11-16 12:27:39,474 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 381 transitions, 4703 flow [2022-11-16 12:27:39,474 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) [2022-11-16 12:27:39,474 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:39,474 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] [2022-11-16 12:27:39,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:27:39,475 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:27:39,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:39,475 INFO L85 PathProgramCache]: Analyzing trace with hash 5164268, now seen corresponding path program 6 times [2022-11-16 12:27:39,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:39,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798880211] [2022-11-16 12:27:39,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:39,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:40,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:40,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:40,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798880211] [2022-11-16 12:27:40,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798880211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:40,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:40,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-16 12:27:40,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203357009] [2022-11-16 12:27:40,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:40,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 12:27:40,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:40,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 12:27:40,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:27:40,930 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 184 [2022-11-16 12:27:40,931 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) [2022-11-16 12:27:40,932 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:40,932 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 184 [2022-11-16 12:27:40,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:48,259 INFO L130 PetriNetUnfolder]: 7369/16383 cut-off events. [2022-11-16 12:27:48,259 INFO L131 PetriNetUnfolder]: For 198689/276821 co-relation queries the response was YES. [2022-11-16 12:27:48,456 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. [2022-11-16 12:27:48,514 INFO L137 encePairwiseOnDemand]: 162/184 looper letters, 277 selfloop transitions, 132 changer transitions 14/491 dead transitions. [2022-11-16 12:27:48,514 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 491 transitions, 6305 flow [2022-11-16 12:27:48,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-16 12:27:48,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-16 12:27:48,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2387 transitions. [2022-11-16 12:27:48,519 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49895484949832775 [2022-11-16 12:27:48,520 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2387 transitions. [2022-11-16 12:27:48,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2387 transitions. [2022-11-16 12:27:48,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:48,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2387 transitions. [2022-11-16 12:27:48,525 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) [2022-11-16 12:27:48,532 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) [2022-11-16 12:27:48,533 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) [2022-11-16 12:27:48,533 INFO L175 Difference]: Start difference. First operand has 338 places, 381 transitions, 4703 flow. Second operand 26 states and 2387 transitions. [2022-11-16 12:27:48,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 491 transitions, 6305 flow [2022-11-16 12:27:49,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 491 transitions, 6186 flow, removed 16 selfloop flow, removed 16 redundant places. [2022-11-16 12:27:49,630 INFO L231 Difference]: Finished difference. Result has 351 places, 385 transitions, 4984 flow [2022-11-16 12:27:49,631 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} [2022-11-16 12:27:49,631 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 198 predicate places. [2022-11-16 12:27:49,631 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 385 transitions, 4984 flow [2022-11-16 12:27:49,632 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) [2022-11-16 12:27:49,632 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:49,632 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] [2022-11-16 12:27:49,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:27:49,633 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:27:49,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:49,633 INFO L85 PathProgramCache]: Analyzing trace with hash 215508436, now seen corresponding path program 4 times [2022-11-16 12:27:49,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:49,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357344819] [2022-11-16 12:27:49,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:49,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:51,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:51,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:51,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357344819] [2022-11-16 12:27:51,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357344819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:51,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:51,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-16 12:27:51,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909114945] [2022-11-16 12:27:51,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:51,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 12:27:51,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:51,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 12:27:51,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:27:51,286 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 184 [2022-11-16 12:27:51,288 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) [2022-11-16 12:27:51,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:51,288 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 184 [2022-11-16 12:27:51,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:58,791 INFO L130 PetriNetUnfolder]: 7796/17192 cut-off events. [2022-11-16 12:27:58,792 INFO L131 PetriNetUnfolder]: For 291573/357953 co-relation queries the response was YES. [2022-11-16 12:27:59,025 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. [2022-11-16 12:27:59,099 INFO L137 encePairwiseOnDemand]: 159/184 looper letters, 309 selfloop transitions, 136 changer transitions 4/516 dead transitions. [2022-11-16 12:27:59,099 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 516 transitions, 7122 flow [2022-11-16 12:27:59,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 12:27:59,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-11-16 12:27:59,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 2261 transitions. [2022-11-16 12:27:59,104 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4915217391304348 [2022-11-16 12:27:59,104 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 2261 transitions. [2022-11-16 12:27:59,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 2261 transitions. [2022-11-16 12:27:59,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:59,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 2261 transitions. [2022-11-16 12:27:59,110 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) [2022-11-16 12:27:59,115 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) [2022-11-16 12:27:59,116 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) [2022-11-16 12:27:59,117 INFO L175 Difference]: Start difference. First operand has 351 places, 385 transitions, 4984 flow. Second operand 25 states and 2261 transitions. [2022-11-16 12:27:59,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 516 transitions, 7122 flow [2022-11-16 12:28:02,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 516 transitions, 6866 flow, removed 25 selfloop flow, removed 22 redundant places. [2022-11-16 12:28:02,680 INFO L231 Difference]: Finished difference. Result has 361 places, 419 transitions, 5665 flow [2022-11-16 12:28:02,681 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} [2022-11-16 12:28:02,682 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 208 predicate places. [2022-11-16 12:28:02,682 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 419 transitions, 5665 flow [2022-11-16 12:28:02,683 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) [2022-11-16 12:28:02,683 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:02,683 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] [2022-11-16 12:28:02,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:28:02,683 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:28:02,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:02,683 INFO L85 PathProgramCache]: Analyzing trace with hash -199728760, now seen corresponding path program 7 times [2022-11-16 12:28:02,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:02,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048612806] [2022-11-16 12:28:02,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:02,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:04,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:04,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:04,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048612806] [2022-11-16 12:28:04,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048612806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:04,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:04,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-16 12:28:04,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037895652] [2022-11-16 12:28:04,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:04,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 12:28:04,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:04,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 12:28:04,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:28:04,350 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 184 [2022-11-16 12:28:04,351 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) [2022-11-16 12:28:04,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:04,352 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 184 [2022-11-16 12:28:04,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:12,466 INFO L130 PetriNetUnfolder]: 8222/18235 cut-off events. [2022-11-16 12:28:12,466 INFO L131 PetriNetUnfolder]: For 313202/394674 co-relation queries the response was YES. [2022-11-16 12:28:12,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102035 conditions, 18235 events. 8222/18235 cut-off events. For 313202/394674 co-relation queries the response was YES. Maximal size of possible extension queue 599. Compared 172011 event pairs, 4040 based on Foata normal form. 1148/17805 useless extension candidates. Maximal degree in co-relation 97993. Up to 10799 conditions per place. [2022-11-16 12:28:12,760 INFO L137 encePairwiseOnDemand]: 159/184 looper letters, 319 selfloop transitions, 148 changer transitions 15/549 dead transitions. [2022-11-16 12:28:12,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 549 transitions, 7822 flow [2022-11-16 12:28:12,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 12:28:12,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-16 12:28:12,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2176 transitions. [2022-11-16 12:28:12,765 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4927536231884058 [2022-11-16 12:28:12,765 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2176 transitions. [2022-11-16 12:28:12,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2176 transitions. [2022-11-16 12:28:12,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:12,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2176 transitions. [2022-11-16 12:28:12,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 90.66666666666667) internal successors, (2176), 24 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:12,775 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) [2022-11-16 12:28:12,775 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) [2022-11-16 12:28:12,776 INFO L175 Difference]: Start difference. First operand has 361 places, 419 transitions, 5665 flow. Second operand 24 states and 2176 transitions. [2022-11-16 12:28:12,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 549 transitions, 7822 flow [2022-11-16 12:28:15,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 549 transitions, 7420 flow, removed 159 selfloop flow, removed 13 redundant places. [2022-11-16 12:28:15,667 INFO L231 Difference]: Finished difference. Result has 379 places, 439 transitions, 6105 flow [2022-11-16 12:28:15,667 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=5451, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=6105, PETRI_PLACES=379, PETRI_TRANSITIONS=439} [2022-11-16 12:28:15,668 INFO L288 CegarLoopForPetriNet]: 153 programPoint places, 226 predicate places. [2022-11-16 12:28:15,668 INFO L495 AbstractCegarLoop]: Abstraction has has 379 places, 439 transitions, 6105 flow [2022-11-16 12:28:15,668 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) [2022-11-16 12:28:15,668 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:15,669 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] [2022-11-16 12:28:15,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:28:15,669 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-16 12:28:15,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:15,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1703018536, now seen corresponding path program 5 times [2022-11-16 12:28:15,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:15,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114999542] [2022-11-16 12:28:15,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:15,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat