./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_841a80d2-1d8b-42ab-88c8-bfca7083f88a/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841a80d2-1d8b-42ab-88c8-bfca7083f88a/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841a80d2-1d8b-42ab-88c8-bfca7083f88a/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841a80d2-1d8b-42ab-88c8-bfca7083f88a/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841a80d2-1d8b-42ab-88c8-bfca7083f88a/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841a80d2-1d8b-42ab-88c8-bfca7083f88a/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:28:55,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:28:55,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:28:55,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:28:55,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:28:55,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:28:55,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:28:55,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:28:55,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:28:55,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:28:55,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:28:55,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:28:55,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:28:55,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:28:55,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:28:55,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:28:55,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:28:55,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:28:55,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:28:55,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:28:55,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:28:55,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:28:55,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:28:55,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:28:55,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:28:55,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:28:55,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:28:55,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:28:55,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:28:55,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:28:55,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:28:55,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:28:55,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:28:55,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:28:55,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:28:55,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:28:55,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:28:55,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:28:55,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:28:55,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:28:55,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:28:55,127 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841a80d2-1d8b-42ab-88c8-bfca7083f88a/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 12:28:55,150 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:28:55,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:28:55,151 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:28:55,151 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:28:55,152 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:28:55,152 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:28:55,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:28:55,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:28:55,153 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:28:55,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:28:55,154 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:28:55,154 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:28:55,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:28:55,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:28:55,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:28:55,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:28:55,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:28:55,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:28:55,156 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 12:28:55,156 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:28:55,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:28:55,156 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:28:55,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:28:55,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:28:55,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:28:55,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:28:55,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:28:55,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:28:55,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:28:55,158 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:28:55,158 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:28:55,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:28:55,158 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:28:55,159 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:28:55,159 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:28:55,159 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_841a80d2-1d8b-42ab-88c8-bfca7083f88a/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841a80d2-1d8b-42ab-88c8-bfca7083f88a/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 [2022-11-20 12:28:55,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:28:55,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:28:55,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:28:55,507 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:28:55,508 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:28:55,509 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841a80d2-1d8b-42ab-88c8-bfca7083f88a/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-11-20 12:28:58,564 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:28:58,946 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:28:58,947 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841a80d2-1d8b-42ab-88c8-bfca7083f88a/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-11-20 12:28:58,969 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841a80d2-1d8b-42ab-88c8-bfca7083f88a/bin/uautomizer-ug76WZFUDN/data/5dba3b4f8/15be75aa557443b3b4a5ab12548f879b/FLAGffd190939 [2022-11-20 12:28:58,986 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841a80d2-1d8b-42ab-88c8-bfca7083f88a/bin/uautomizer-ug76WZFUDN/data/5dba3b4f8/15be75aa557443b3b4a5ab12548f879b [2022-11-20 12:28:58,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:28:58,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:28:58,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:28:58,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:28:59,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:28:59,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:28:58" (1/1) ... [2022-11-20 12:28:59,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3438100d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:28:59, skipping insertion in model container [2022-11-20 12:28:59,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:28:58" (1/1) ... [2022-11-20 12:28:59,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:28:59,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:28:59,242 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 12:28:59,811 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841a80d2-1d8b-42ab-88c8-bfca7083f88a/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-11-20 12:28:59,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:28:59,863 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:28:59,876 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 12:28:59,912 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841a80d2-1d8b-42ab-88c8-bfca7083f88a/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-11-20 12:28:59,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:29:00,034 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:29:00,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:00 WrapperNode [2022-11-20 12:29:00,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:29:00,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:29:00,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:29:00,035 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:29:00,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:00" (1/1) ... [2022-11-20 12:29:00,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:00" (1/1) ... [2022-11-20 12:29:00,111 INFO L138 Inliner]: procedures = 468, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 115 [2022-11-20 12:29:00,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:29:00,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:29:00,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:29:00,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:29:00,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:00" (1/1) ... [2022-11-20 12:29:00,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:00" (1/1) ... [2022-11-20 12:29:00,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:00" (1/1) ... [2022-11-20 12:29:00,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:00" (1/1) ... [2022-11-20 12:29:00,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:00" (1/1) ... [2022-11-20 12:29:00,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:00" (1/1) ... [2022-11-20 12:29:00,162 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:00" (1/1) ... [2022-11-20 12:29:00,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:00" (1/1) ... [2022-11-20 12:29:00,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:29:00,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:29:00,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:29:00,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:29:00,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:00" (1/1) ... [2022-11-20 12:29:00,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:29:00,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841a80d2-1d8b-42ab-88c8-bfca7083f88a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:29:00,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841a80d2-1d8b-42ab-88c8-bfca7083f88a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:29:00,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_841a80d2-1d8b-42ab-88c8-bfca7083f88a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:29:00,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 12:29:00,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:29:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 12:29:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:29:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:29:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:29:00,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:29:00,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:29:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-20 12:29:00,271 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-20 12:29:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:29:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:29:00,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:29:00,273 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:29:00,706 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:29:00,708 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:29:00,991 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:29:01,017 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:29:01,018 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:29:01,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:29:01 BoogieIcfgContainer [2022-11-20 12:29:01,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:29:01,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:29:01,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:29:01,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:29:01,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:28:58" (1/3) ... [2022-11-20 12:29:01,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf2006f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:29:01, skipping insertion in model container [2022-11-20 12:29:01,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:00" (2/3) ... [2022-11-20 12:29:01,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf2006f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:29:01, skipping insertion in model container [2022-11-20 12:29:01,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:29:01" (3/3) ... [2022-11-20 12:29:01,033 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2022-11-20 12:29:01,042 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:29:01,051 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:29:01,052 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 12:29:01,052 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:29:01,150 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 12:29:01,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 163 transitions, 342 flow [2022-11-20 12:29:01,279 INFO L130 PetriNetUnfolder]: 8/206 cut-off events. [2022-11-20 12:29:01,279 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 12:29:01,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 206 events. 8/206 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 337 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 113. Up to 4 conditions per place. [2022-11-20 12:29:01,285 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 163 transitions, 342 flow [2022-11-20 12:29:01,290 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 129 transitions, 267 flow [2022-11-20 12:29:01,299 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:29:01,306 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;@3b299dbc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:29:01,306 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-20 12:29:01,323 INFO L130 PetriNetUnfolder]: 0/63 cut-off events. [2022-11-20 12:29:01,323 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:29:01,323 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:01,324 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:01,324 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:29:01,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:01,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1648225963, now seen corresponding path program 1 times [2022-11-20 12:29:01,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:01,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387632553] [2022-11-20 12:29:01,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:01,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:01,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:03,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:03,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:03,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387632553] [2022-11-20 12:29:03,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387632553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:03,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:03,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-20 12:29:03,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302742215] [2022-11-20 12:29:03,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:03,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 12:29:03,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:03,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 12:29:03,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-20 12:29:03,776 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 163 [2022-11-20 12:29:03,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 129 transitions, 267 flow. Second operand has 15 states, 15 states have (on average 110.6) internal successors, (1659), 15 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:03,785 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:03,785 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 163 [2022-11-20 12:29:03,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:05,787 INFO L130 PetriNetUnfolder]: 835/3167 cut-off events. [2022-11-20 12:29:05,787 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-11-20 12:29:05,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4631 conditions, 3167 events. 835/3167 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 28080 event pairs, 546 based on Foata normal form. 130/2858 useless extension candidates. Maximal degree in co-relation 4422. Up to 1046 conditions per place. [2022-11-20 12:29:05,817 INFO L137 encePairwiseOnDemand]: 143/163 looper letters, 67 selfloop transitions, 23 changer transitions 2/175 dead transitions. [2022-11-20 12:29:05,817 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 175 transitions, 549 flow [2022-11-20 12:29:05,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 12:29:05,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 12:29:05,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2064 transitions. [2022-11-20 12:29:05,840 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7034764826175869 [2022-11-20 12:29:05,841 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2064 transitions. [2022-11-20 12:29:05,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2064 transitions. [2022-11-20 12:29:05,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:05,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2064 transitions. [2022-11-20 12:29:05,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 114.66666666666667) internal successors, (2064), 18 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:05,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 163.0) internal successors, (3097), 19 states have internal predecessors, (3097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:05,872 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 163.0) internal successors, (3097), 19 states have internal predecessors, (3097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:05,874 INFO L175 Difference]: Start difference. First operand has 134 places, 129 transitions, 267 flow. Second operand 18 states and 2064 transitions. [2022-11-20 12:29:05,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 175 transitions, 549 flow [2022-11-20 12:29:05,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 175 transitions, 541 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 12:29:05,886 INFO L231 Difference]: Finished difference. Result has 155 places, 140 transitions, 383 flow [2022-11-20 12:29:05,889 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=383, PETRI_PLACES=155, PETRI_TRANSITIONS=140} [2022-11-20 12:29:05,896 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 21 predicate places. [2022-11-20 12:29:05,896 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 140 transitions, 383 flow [2022-11-20 12:29:05,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 110.6) internal successors, (1659), 15 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:05,897 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:05,898 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:05,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:29:05,899 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:29:05,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:05,900 INFO L85 PathProgramCache]: Analyzing trace with hash -689523701, now seen corresponding path program 1 times [2022-11-20 12:29:05,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:05,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633112586] [2022-11-20 12:29:05,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:05,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:07,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:07,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:07,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633112586] [2022-11-20 12:29:07,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633112586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:07,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:07,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-20 12:29:07,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44681169] [2022-11-20 12:29:07,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:07,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 12:29:07,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:07,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 12:29:07,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-11-20 12:29:07,298 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 163 [2022-11-20 12:29:07,305 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 140 transitions, 383 flow. Second operand has 19 states, 19 states have (on average 101.63157894736842) internal successors, (1931), 19 states have internal predecessors, (1931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:07,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:07,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 163 [2022-11-20 12:29:07,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:09,783 INFO L130 PetriNetUnfolder]: 1200/4026 cut-off events. [2022-11-20 12:29:09,783 INFO L131 PetriNetUnfolder]: For 1045/1054 co-relation queries the response was YES. [2022-11-20 12:29:09,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7021 conditions, 4026 events. 1200/4026 cut-off events. For 1045/1054 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 36015 event pairs, 690 based on Foata normal form. 57/3580 useless extension candidates. Maximal degree in co-relation 6458. Up to 1299 conditions per place. [2022-11-20 12:29:09,817 INFO L137 encePairwiseOnDemand]: 140/163 looper letters, 106 selfloop transitions, 45 changer transitions 2/228 dead transitions. [2022-11-20 12:29:09,818 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 228 transitions, 930 flow [2022-11-20 12:29:09,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 12:29:09,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 12:29:09,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2251 transitions. [2022-11-20 12:29:09,825 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6576102833771545 [2022-11-20 12:29:09,826 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2251 transitions. [2022-11-20 12:29:09,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2251 transitions. [2022-11-20 12:29:09,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:09,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2251 transitions. [2022-11-20 12:29:09,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 107.19047619047619) internal successors, (2251), 21 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:09,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 163.0) internal successors, (3586), 22 states have internal predecessors, (3586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:09,843 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 163.0) internal successors, (3586), 22 states have internal predecessors, (3586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:09,843 INFO L175 Difference]: Start difference. First operand has 155 places, 140 transitions, 383 flow. Second operand 21 states and 2251 transitions. [2022-11-20 12:29:09,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 228 transitions, 930 flow [2022-11-20 12:29:09,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 228 transitions, 919 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 12:29:09,858 INFO L231 Difference]: Finished difference. Result has 178 places, 167 transitions, 629 flow [2022-11-20 12:29:09,859 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=629, PETRI_PLACES=178, PETRI_TRANSITIONS=167} [2022-11-20 12:29:09,860 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 44 predicate places. [2022-11-20 12:29:09,860 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 167 transitions, 629 flow [2022-11-20 12:29:09,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 101.63157894736842) internal successors, (1931), 19 states have internal predecessors, (1931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:09,862 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:09,862 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:09,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:29:09,863 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:29:09,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:09,865 INFO L85 PathProgramCache]: Analyzing trace with hash -641521751, now seen corresponding path program 2 times [2022-11-20 12:29:09,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:09,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43730109] [2022-11-20 12:29:09,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:09,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:11,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:11,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:11,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43730109] [2022-11-20 12:29:11,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43730109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:11,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:11,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 12:29:11,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256848491] [2022-11-20 12:29:11,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:11,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 12:29:11,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:11,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 12:29:11,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:29:11,387 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 163 [2022-11-20 12:29:11,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 167 transitions, 629 flow. Second operand has 18 states, 18 states have (on average 101.72222222222223) internal successors, (1831), 18 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:11,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:11,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 163 [2022-11-20 12:29:11,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:13,880 INFO L130 PetriNetUnfolder]: 1299/4450 cut-off events. [2022-11-20 12:29:13,880 INFO L131 PetriNetUnfolder]: For 4020/4295 co-relation queries the response was YES. [2022-11-20 12:29:13,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8975 conditions, 4450 events. 1299/4450 cut-off events. For 4020/4295 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 41160 event pairs, 577 based on Foata normal form. 117/4022 useless extension candidates. Maximal degree in co-relation 8316. Up to 1227 conditions per place. [2022-11-20 12:29:13,917 INFO L137 encePairwiseOnDemand]: 142/163 looper letters, 112 selfloop transitions, 52 changer transitions 2/241 dead transitions. [2022-11-20 12:29:13,917 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 241 transitions, 1222 flow [2022-11-20 12:29:13,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 12:29:13,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 12:29:13,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2149 transitions. [2022-11-20 12:29:13,925 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.65920245398773 [2022-11-20 12:29:13,926 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2149 transitions. [2022-11-20 12:29:13,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2149 transitions. [2022-11-20 12:29:13,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:13,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2149 transitions. [2022-11-20 12:29:13,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 107.45) internal successors, (2149), 20 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:13,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 163.0) internal successors, (3423), 21 states have internal predecessors, (3423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:13,941 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 163.0) internal successors, (3423), 21 states have internal predecessors, (3423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:13,942 INFO L175 Difference]: Start difference. First operand has 178 places, 167 transitions, 629 flow. Second operand 20 states and 2149 transitions. [2022-11-20 12:29:13,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 241 transitions, 1222 flow [2022-11-20 12:29:13,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 241 transitions, 1143 flow, removed 29 selfloop flow, removed 11 redundant places. [2022-11-20 12:29:13,968 INFO L231 Difference]: Finished difference. Result has 190 places, 178 transitions, 799 flow [2022-11-20 12:29:13,968 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=799, PETRI_PLACES=190, PETRI_TRANSITIONS=178} [2022-11-20 12:29:13,971 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 56 predicate places. [2022-11-20 12:29:13,971 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 178 transitions, 799 flow [2022-11-20 12:29:13,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 101.72222222222223) internal successors, (1831), 18 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:13,972 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:13,972 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:13,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:29:13,973 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:29:13,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:13,974 INFO L85 PathProgramCache]: Analyzing trace with hash -782986223, now seen corresponding path program 1 times [2022-11-20 12:29:13,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:13,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271164804] [2022-11-20 12:29:13,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:13,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:15,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:15,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:15,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271164804] [2022-11-20 12:29:15,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271164804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:15,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:15,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-20 12:29:15,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881043036] [2022-11-20 12:29:15,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:15,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 12:29:15,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:15,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 12:29:15,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-11-20 12:29:15,079 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 163 [2022-11-20 12:29:15,081 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 178 transitions, 799 flow. Second operand has 19 states, 19 states have (on average 101.6842105263158) internal successors, (1932), 19 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:15,081 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:15,081 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 163 [2022-11-20 12:29:15,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:17,948 INFO L130 PetriNetUnfolder]: 2336/8569 cut-off events. [2022-11-20 12:29:17,949 INFO L131 PetriNetUnfolder]: For 7861/14835 co-relation queries the response was YES. [2022-11-20 12:29:17,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17114 conditions, 8569 events. 2336/8569 cut-off events. For 7861/14835 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 92893 event pairs, 855 based on Foata normal form. 173/7847 useless extension candidates. Maximal degree in co-relation 16187. Up to 3160 conditions per place. [2022-11-20 12:29:18,018 INFO L137 encePairwiseOnDemand]: 141/163 looper letters, 118 selfloop transitions, 74 changer transitions 5/280 dead transitions. [2022-11-20 12:29:18,018 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 280 transitions, 1709 flow [2022-11-20 12:29:18,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 12:29:18,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 12:29:18,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2238 transitions. [2022-11-20 12:29:18,025 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6538124452234881 [2022-11-20 12:29:18,025 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2238 transitions. [2022-11-20 12:29:18,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2238 transitions. [2022-11-20 12:29:18,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:18,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2238 transitions. [2022-11-20 12:29:18,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 106.57142857142857) internal successors, (2238), 21 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:18,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 163.0) internal successors, (3586), 22 states have internal predecessors, (3586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:18,041 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 163.0) internal successors, (3586), 22 states have internal predecessors, (3586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:18,041 INFO L175 Difference]: Start difference. First operand has 190 places, 178 transitions, 799 flow. Second operand 21 states and 2238 transitions. [2022-11-20 12:29:18,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 280 transitions, 1709 flow [2022-11-20 12:29:18,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 280 transitions, 1615 flow, removed 24 selfloop flow, removed 12 redundant places. [2022-11-20 12:29:18,119 INFO L231 Difference]: Finished difference. Result has 207 places, 224 transitions, 1299 flow [2022-11-20 12:29:18,120 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=751, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1299, PETRI_PLACES=207, PETRI_TRANSITIONS=224} [2022-11-20 12:29:18,121 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 73 predicate places. [2022-11-20 12:29:18,121 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 224 transitions, 1299 flow [2022-11-20 12:29:18,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 101.6842105263158) internal successors, (1932), 19 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:18,122 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:18,123 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:18,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:29:18,123 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:29:18,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:18,124 INFO L85 PathProgramCache]: Analyzing trace with hash 20248238, now seen corresponding path program 1 times [2022-11-20 12:29:18,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:18,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972863697] [2022-11-20 12:29:18,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:18,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:19,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:19,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:19,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972863697] [2022-11-20 12:29:19,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972863697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:19,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:19,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-20 12:29:19,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952027120] [2022-11-20 12:29:19,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:19,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 12:29:19,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:19,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 12:29:19,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2022-11-20 12:29:19,881 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-20 12:29:19,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 224 transitions, 1299 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:19,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:19,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-20 12:29:19,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:27,918 INFO L130 PetriNetUnfolder]: 3260/10289 cut-off events. [2022-11-20 12:29:27,918 INFO L131 PetriNetUnfolder]: For 12543/20804 co-relation queries the response was YES. [2022-11-20 12:29:28,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24014 conditions, 10289 events. 3260/10289 cut-off events. For 12543/20804 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 107458 event pairs, 843 based on Foata normal form. 433/9940 useless extension candidates. Maximal degree in co-relation 22626. Up to 2360 conditions per place. [2022-11-20 12:29:28,044 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 229 selfloop transitions, 163 changer transitions 4/466 dead transitions. [2022-11-20 12:29:28,044 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 466 transitions, 3353 flow [2022-11-20 12:29:28,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-20 12:29:28,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-11-20 12:29:28,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3724 transitions. [2022-11-20 12:29:28,056 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.634628493524199 [2022-11-20 12:29:28,057 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 3724 transitions. [2022-11-20 12:29:28,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 3724 transitions. [2022-11-20 12:29:28,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:28,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 3724 transitions. [2022-11-20 12:29:28,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 103.44444444444444) internal successors, (3724), 36 states have internal predecessors, (3724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:28,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 163.0) internal successors, (6031), 37 states have internal predecessors, (6031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:28,085 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 163.0) internal successors, (6031), 37 states have internal predecessors, (6031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:28,085 INFO L175 Difference]: Start difference. First operand has 207 places, 224 transitions, 1299 flow. Second operand 36 states and 3724 transitions. [2022-11-20 12:29:28,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 466 transitions, 3353 flow [2022-11-20 12:29:28,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 466 transitions, 3286 flow, removed 26 selfloop flow, removed 8 redundant places. [2022-11-20 12:29:28,192 INFO L231 Difference]: Finished difference. Result has 253 places, 304 transitions, 2510 flow [2022-11-20 12:29:28,192 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=1258, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=2510, PETRI_PLACES=253, PETRI_TRANSITIONS=304} [2022-11-20 12:29:28,195 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 119 predicate places. [2022-11-20 12:29:28,196 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 304 transitions, 2510 flow [2022-11-20 12:29:28,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:28,197 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:28,197 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:28,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:29:28,198 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:29:28,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:28,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1794086476, now seen corresponding path program 1 times [2022-11-20 12:29:28,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:28,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274125739] [2022-11-20 12:29:28,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:28,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:29,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:29,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:29,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274125739] [2022-11-20 12:29:29,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274125739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:29,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:29,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-20 12:29:29,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443419698] [2022-11-20 12:29:29,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:29,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 12:29:29,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:29,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 12:29:29,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2022-11-20 12:29:29,920 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-20 12:29:29,923 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 304 transitions, 2510 flow. Second operand has 23 states, 23 states have (on average 96.65217391304348) internal successors, (2223), 23 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:29,924 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:29,924 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-20 12:29:29,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:40,937 INFO L130 PetriNetUnfolder]: 3753/12073 cut-off events. [2022-11-20 12:29:40,937 INFO L131 PetriNetUnfolder]: For 33080/45930 co-relation queries the response was YES. [2022-11-20 12:29:41,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33082 conditions, 12073 events. 3753/12073 cut-off events. For 33080/45930 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 131433 event pairs, 961 based on Foata normal form. 1187/12327 useless extension candidates. Maximal degree in co-relation 31454. Up to 3399 conditions per place. [2022-11-20 12:29:41,055 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 298 selfloop transitions, 231 changer transitions 17/616 dead transitions. [2022-11-20 12:29:41,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 616 transitions, 5644 flow [2022-11-20 12:29:41,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 12:29:41,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-11-20 12:29:41,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 4641 transitions. [2022-11-20 12:29:41,065 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.632719836400818 [2022-11-20 12:29:41,066 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 4641 transitions. [2022-11-20 12:29:41,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 4641 transitions. [2022-11-20 12:29:41,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:41,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 4641 transitions. [2022-11-20 12:29:41,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 103.13333333333334) internal successors, (4641), 45 states have internal predecessors, (4641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:41,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 163.0) internal successors, (7498), 46 states have internal predecessors, (7498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:41,112 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 163.0) internal successors, (7498), 46 states have internal predecessors, (7498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:41,112 INFO L175 Difference]: Start difference. First operand has 253 places, 304 transitions, 2510 flow. Second operand 45 states and 4641 transitions. [2022-11-20 12:29:41,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 616 transitions, 5644 flow [2022-11-20 12:29:41,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 616 transitions, 5389 flow, removed 53 selfloop flow, removed 16 redundant places. [2022-11-20 12:29:41,339 INFO L231 Difference]: Finished difference. Result has 295 places, 410 transitions, 4159 flow [2022-11-20 12:29:41,339 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=2357, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=4159, PETRI_PLACES=295, PETRI_TRANSITIONS=410} [2022-11-20 12:29:41,342 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 161 predicate places. [2022-11-20 12:29:41,343 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 410 transitions, 4159 flow [2022-11-20 12:29:41,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 96.65217391304348) internal successors, (2223), 23 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:41,344 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:41,344 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:41,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:29:41,344 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:29:41,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:41,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1422956285, now seen corresponding path program 1 times [2022-11-20 12:29:41,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:41,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53232014] [2022-11-20 12:29:41,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:41,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:43,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:43,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:43,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53232014] [2022-11-20 12:29:43,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53232014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:43,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:43,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-20 12:29:43,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970816677] [2022-11-20 12:29:43,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:43,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 12:29:43,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:43,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 12:29:43,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-11-20 12:29:43,241 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-20 12:29:43,244 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 410 transitions, 4159 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:43,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:43,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-20 12:29:43,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:54,327 INFO L130 PetriNetUnfolder]: 3987/12539 cut-off events. [2022-11-20 12:29:54,328 INFO L131 PetriNetUnfolder]: For 50078/82109 co-relation queries the response was YES. [2022-11-20 12:29:54,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39146 conditions, 12539 events. 3987/12539 cut-off events. For 50078/82109 co-relation queries the response was YES. Maximal size of possible extension queue 472. Compared 136100 event pairs, 1057 based on Foata normal form. 1545/13100 useless extension candidates. Maximal degree in co-relation 37277. Up to 3697 conditions per place. [2022-11-20 12:29:54,664 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 284 selfloop transitions, 280 changer transitions 16/650 dead transitions. [2022-11-20 12:29:54,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 650 transitions, 6791 flow [2022-11-20 12:29:54,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-20 12:29:54,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2022-11-20 12:29:54,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 5217 transitions. [2022-11-20 12:29:54,675 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6275712739083363 [2022-11-20 12:29:54,675 INFO L72 ComplementDD]: Start complementDD. Operand 51 states and 5217 transitions. [2022-11-20 12:29:54,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 5217 transitions. [2022-11-20 12:29:54,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:54,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 51 states and 5217 transitions. [2022-11-20 12:29:54,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 52 states, 51 states have (on average 102.29411764705883) internal successors, (5217), 51 states have internal predecessors, (5217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:54,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 52 states, 52 states have (on average 163.0) internal successors, (8476), 52 states have internal predecessors, (8476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:54,704 INFO L81 ComplementDD]: Finished complementDD. Result has 52 states, 52 states have (on average 163.0) internal successors, (8476), 52 states have internal predecessors, (8476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:54,705 INFO L175 Difference]: Start difference. First operand has 295 places, 410 transitions, 4159 flow. Second operand 51 states and 5217 transitions. [2022-11-20 12:29:54,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 650 transitions, 6791 flow [2022-11-20 12:29:55,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 650 transitions, 6619 flow, removed 64 selfloop flow, removed 11 redundant places. [2022-11-20 12:29:55,086 INFO L231 Difference]: Finished difference. Result has 341 places, 452 transitions, 5289 flow [2022-11-20 12:29:55,087 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=3995, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=238, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=5289, PETRI_PLACES=341, PETRI_TRANSITIONS=452} [2022-11-20 12:29:55,088 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 207 predicate places. [2022-11-20 12:29:55,088 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 452 transitions, 5289 flow [2022-11-20 12:29:55,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:55,090 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:55,090 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:55,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:29:55,091 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:29:55,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:55,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1954060821, now seen corresponding path program 2 times [2022-11-20 12:29:55,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:55,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179324787] [2022-11-20 12:29:55,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:55,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:56,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:56,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:56,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179324787] [2022-11-20 12:29:56,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179324787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:56,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:56,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-20 12:29:56,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491104605] [2022-11-20 12:29:56,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:56,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 12:29:56,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:56,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 12:29:56,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-11-20 12:29:56,692 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-20 12:29:56,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 452 transitions, 5289 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:56,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:56,694 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-20 12:29:56,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:02,929 INFO L130 PetriNetUnfolder]: 4311/13548 cut-off events. [2022-11-20 12:30:02,929 INFO L131 PetriNetUnfolder]: For 71729/146139 co-relation queries the response was YES. [2022-11-20 12:30:03,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44950 conditions, 13548 events. 4311/13548 cut-off events. For 71729/146139 co-relation queries the response was YES. Maximal size of possible extension queue 508. Compared 148984 event pairs, 1371 based on Foata normal form. 1494/13903 useless extension candidates. Maximal degree in co-relation 43017. Up to 4282 conditions per place. [2022-11-20 12:30:03,088 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 229 selfloop transitions, 283 changer transitions 16/598 dead transitions. [2022-11-20 12:30:03,089 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 598 transitions, 7628 flow [2022-11-20 12:30:03,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-20 12:30:03,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-20 12:30:03,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2701 transitions. [2022-11-20 12:30:03,094 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6373289287399717 [2022-11-20 12:30:03,094 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2701 transitions. [2022-11-20 12:30:03,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2701 transitions. [2022-11-20 12:30:03,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:03,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2701 transitions. [2022-11-20 12:30:03,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 103.88461538461539) internal successors, (2701), 26 states have internal predecessors, (2701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:03,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 163.0) internal successors, (4401), 27 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:03,109 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 163.0) internal successors, (4401), 27 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:03,109 INFO L175 Difference]: Start difference. First operand has 341 places, 452 transitions, 5289 flow. Second operand 26 states and 2701 transitions. [2022-11-20 12:30:03,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 598 transitions, 7628 flow [2022-11-20 12:30:03,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 598 transitions, 7197 flow, removed 37 selfloop flow, removed 46 redundant places. [2022-11-20 12:30:03,689 INFO L231 Difference]: Finished difference. Result has 326 places, 490 transitions, 6204 flow [2022-11-20 12:30:03,690 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=4881, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=245, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=6204, PETRI_PLACES=326, PETRI_TRANSITIONS=490} [2022-11-20 12:30:03,692 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 192 predicate places. [2022-11-20 12:30:03,692 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 490 transitions, 6204 flow [2022-11-20 12:30:03,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:03,693 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:03,694 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:03,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:30:03,694 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:30:03,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:03,694 INFO L85 PathProgramCache]: Analyzing trace with hash -266638708, now seen corresponding path program 2 times [2022-11-20 12:30:03,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:03,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153175477] [2022-11-20 12:30:03,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:03,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:05,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:05,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:05,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153175477] [2022-11-20 12:30:05,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153175477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:05,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:05,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-20 12:30:05,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465902430] [2022-11-20 12:30:05,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:05,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 12:30:05,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:05,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 12:30:05,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-11-20 12:30:05,193 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-20 12:30:05,195 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 490 transitions, 6204 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:05,195 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:05,195 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-20 12:30:05,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:11,845 INFO L130 PetriNetUnfolder]: 4482/14023 cut-off events. [2022-11-20 12:30:11,845 INFO L131 PetriNetUnfolder]: For 93481/237473 co-relation queries the response was YES. [2022-11-20 12:30:12,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48749 conditions, 14023 events. 4482/14023 cut-off events. For 93481/237473 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 155548 event pairs, 1345 based on Foata normal form. 1764/14598 useless extension candidates. Maximal degree in co-relation 46832. Up to 4322 conditions per place. [2022-11-20 12:30:12,221 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 226 selfloop transitions, 309 changer transitions 16/621 dead transitions. [2022-11-20 12:30:12,222 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 621 transitions, 8468 flow [2022-11-20 12:30:12,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-20 12:30:12,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-20 12:30:12,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2699 transitions. [2022-11-20 12:30:12,239 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6368570080226522 [2022-11-20 12:30:12,240 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2699 transitions. [2022-11-20 12:30:12,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2699 transitions. [2022-11-20 12:30:12,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:12,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2699 transitions. [2022-11-20 12:30:12,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 103.8076923076923) internal successors, (2699), 26 states have internal predecessors, (2699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:12,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 163.0) internal successors, (4401), 27 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:12,262 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 163.0) internal successors, (4401), 27 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:12,262 INFO L175 Difference]: Start difference. First operand has 326 places, 490 transitions, 6204 flow. Second operand 26 states and 2699 transitions. [2022-11-20 12:30:12,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 621 transitions, 8468 flow [2022-11-20 12:30:13,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 621 transitions, 8189 flow, removed 71 selfloop flow, removed 15 redundant places. [2022-11-20 12:30:13,080 INFO L231 Difference]: Finished difference. Result has 341 places, 516 transitions, 7195 flow [2022-11-20 12:30:13,081 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=5985, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=283, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=7195, PETRI_PLACES=341, PETRI_TRANSITIONS=516} [2022-11-20 12:30:13,081 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 207 predicate places. [2022-11-20 12:30:13,082 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 516 transitions, 7195 flow [2022-11-20 12:30:13,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:13,083 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:13,083 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:13,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:30:13,083 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:30:13,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:13,084 INFO L85 PathProgramCache]: Analyzing trace with hash 20248622, now seen corresponding path program 3 times [2022-11-20 12:30:13,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:13,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682988837] [2022-11-20 12:30:13,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:13,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:14,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:14,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:14,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682988837] [2022-11-20 12:30:14,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682988837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:14,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:14,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-20 12:30:14,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775286343] [2022-11-20 12:30:14,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:14,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 12:30:14,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:14,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 12:30:14,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-11-20 12:30:14,706 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-20 12:30:14,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 516 transitions, 7195 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:14,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:14,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-20 12:30:14,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:21,758 INFO L130 PetriNetUnfolder]: 4473/14216 cut-off events. [2022-11-20 12:30:21,765 INFO L131 PetriNetUnfolder]: For 93193/209584 co-relation queries the response was YES. [2022-11-20 12:30:21,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50744 conditions, 14216 events. 4473/14216 cut-off events. For 93193/209584 co-relation queries the response was YES. Maximal size of possible extension queue 540. Compared 159478 event pairs, 1415 based on Foata normal form. 1916/14959 useless extension candidates. Maximal degree in co-relation 48774. Up to 4138 conditions per place. [2022-11-20 12:30:21,955 INFO L137 encePairwiseOnDemand]: 136/163 looper letters, 218 selfloop transitions, 313 changer transitions 13/614 dead transitions. [2022-11-20 12:30:21,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 614 transitions, 8904 flow [2022-11-20 12:30:21,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-20 12:30:21,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-20 12:30:21,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2697 transitions. [2022-11-20 12:30:21,959 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6363850873053327 [2022-11-20 12:30:21,960 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2697 transitions. [2022-11-20 12:30:21,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2697 transitions. [2022-11-20 12:30:21,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:21,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2697 transitions. [2022-11-20 12:30:21,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 103.73076923076923) internal successors, (2697), 26 states have internal predecessors, (2697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 163.0) internal successors, (4401), 27 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,972 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 163.0) internal successors, (4401), 27 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:21,973 INFO L175 Difference]: Start difference. First operand has 341 places, 516 transitions, 7195 flow. Second operand 26 states and 2697 transitions. [2022-11-20 12:30:21,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 614 transitions, 8904 flow [2022-11-20 12:30:22,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 614 transitions, 8661 flow, removed 28 selfloop flow, removed 18 redundant places. [2022-11-20 12:30:22,666 INFO L231 Difference]: Finished difference. Result has 352 places, 519 transitions, 7749 flow [2022-11-20 12:30:22,667 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=6962, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=310, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=7749, PETRI_PLACES=352, PETRI_TRANSITIONS=519} [2022-11-20 12:30:22,668 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 218 predicate places. [2022-11-20 12:30:22,668 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 519 transitions, 7749 flow [2022-11-20 12:30:22,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:22,669 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:22,670 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:22,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:30:22,670 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:30:22,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:22,670 INFO L85 PathProgramCache]: Analyzing trace with hash 864554402, now seen corresponding path program 4 times [2022-11-20 12:30:22,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:22,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142521404] [2022-11-20 12:30:22,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:22,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:24,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:24,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:24,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142521404] [2022-11-20 12:30:24,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142521404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:24,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:24,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-20 12:30:24,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111439442] [2022-11-20 12:30:24,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:24,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 12:30:24,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:24,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 12:30:24,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-11-20 12:30:24,086 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-20 12:30:24,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 519 transitions, 7749 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:24,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:24,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-20 12:30:24,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:34,045 INFO L130 PetriNetUnfolder]: 5086/15439 cut-off events. [2022-11-20 12:30:34,045 INFO L131 PetriNetUnfolder]: For 113591/226995 co-relation queries the response was YES. [2022-11-20 12:30:34,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58836 conditions, 15439 events. 5086/15439 cut-off events. For 113591/226995 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 171943 event pairs, 1889 based on Foata normal form. 1360/15473 useless extension candidates. Maximal degree in co-relation 56822. Up to 6228 conditions per place. [2022-11-20 12:30:34,251 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 475 selfloop transitions, 196 changer transitions 10/751 dead transitions. [2022-11-20 12:30:34,251 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 751 transitions, 11152 flow [2022-11-20 12:30:34,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-20 12:30:34,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2022-11-20 12:30:34,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 4020 transitions. [2022-11-20 12:30:34,258 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6323737612081171 [2022-11-20 12:30:34,258 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 4020 transitions. [2022-11-20 12:30:34,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 4020 transitions. [2022-11-20 12:30:34,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:34,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 4020 transitions. [2022-11-20 12:30:34,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 103.07692307692308) internal successors, (4020), 39 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:34,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 163.0) internal successors, (6520), 40 states have internal predecessors, (6520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:34,276 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 163.0) internal successors, (6520), 40 states have internal predecessors, (6520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:34,277 INFO L175 Difference]: Start difference. First operand has 352 places, 519 transitions, 7749 flow. Second operand 39 states and 4020 transitions. [2022-11-20 12:30:34,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 751 transitions, 11152 flow [2022-11-20 12:30:35,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 751 transitions, 10777 flow, removed 28 selfloop flow, removed 19 redundant places. [2022-11-20 12:30:35,155 INFO L231 Difference]: Finished difference. Result has 385 places, 600 transitions, 9281 flow [2022-11-20 12:30:35,156 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=7434, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=9281, PETRI_PLACES=385, PETRI_TRANSITIONS=600} [2022-11-20 12:30:35,157 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 251 predicate places. [2022-11-20 12:30:35,157 INFO L495 AbstractCegarLoop]: Abstraction has has 385 places, 600 transitions, 9281 flow [2022-11-20 12:30:35,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:35,158 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:35,158 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:35,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:30:35,158 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:30:35,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:35,159 INFO L85 PathProgramCache]: Analyzing trace with hash 864554018, now seen corresponding path program 2 times [2022-11-20 12:30:35,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:35,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267620918] [2022-11-20 12:30:35,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:35,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:36,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:36,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:36,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267620918] [2022-11-20 12:30:36,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267620918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:36,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:36,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-20 12:30:36,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203126321] [2022-11-20 12:30:36,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:36,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 12:30:36,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:36,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 12:30:36,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-11-20 12:30:36,574 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-20 12:30:36,576 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 600 transitions, 9281 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:36,576 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:36,576 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-20 12:30:36,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:46,155 INFO L130 PetriNetUnfolder]: 5334/16317 cut-off events. [2022-11-20 12:30:46,155 INFO L131 PetriNetUnfolder]: For 147575/300400 co-relation queries the response was YES. [2022-11-20 12:30:46,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65836 conditions, 16317 events. 5334/16317 cut-off events. For 147575/300400 co-relation queries the response was YES. Maximal size of possible extension queue 657. Compared 184685 event pairs, 1960 based on Foata normal form. 1244/16139 useless extension candidates. Maximal degree in co-relation 63849. Up to 5209 conditions per place. [2022-11-20 12:30:46,413 INFO L137 encePairwiseOnDemand]: 134/163 looper letters, 479 selfloop transitions, 292 changer transitions 14/855 dead transitions. [2022-11-20 12:30:46,413 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 855 transitions, 13384 flow [2022-11-20 12:30:46,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-20 12:30:46,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-11-20 12:30:46,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3954 transitions. [2022-11-20 12:30:46,421 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6383597029383274 [2022-11-20 12:30:46,421 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 3954 transitions. [2022-11-20 12:30:46,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 3954 transitions. [2022-11-20 12:30:46,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:46,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 3954 transitions. [2022-11-20 12:30:46,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 104.05263157894737) internal successors, (3954), 38 states have internal predecessors, (3954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:46,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 163.0) internal successors, (6357), 39 states have internal predecessors, (6357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:46,441 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 163.0) internal successors, (6357), 39 states have internal predecessors, (6357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:46,441 INFO L175 Difference]: Start difference. First operand has 385 places, 600 transitions, 9281 flow. Second operand 38 states and 3954 transitions. [2022-11-20 12:30:46,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 855 transitions, 13384 flow [2022-11-20 12:30:47,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 855 transitions, 13181 flow, removed 66 selfloop flow, removed 12 redundant places. [2022-11-20 12:30:47,756 INFO L231 Difference]: Finished difference. Result has 418 places, 634 transitions, 10415 flow [2022-11-20 12:30:47,756 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=9144, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=258, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=10415, PETRI_PLACES=418, PETRI_TRANSITIONS=634} [2022-11-20 12:30:47,757 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 284 predicate places. [2022-11-20 12:30:47,757 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 634 transitions, 10415 flow [2022-11-20 12:30:47,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:47,757 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:47,757 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:47,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:30:47,758 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:30:47,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:47,758 INFO L85 PathProgramCache]: Analyzing trace with hash 630122130, now seen corresponding path program 5 times [2022-11-20 12:30:47,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:47,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920051404] [2022-11-20 12:30:47,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:47,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:49,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:30:49,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:49,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920051404] [2022-11-20 12:30:49,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920051404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:49,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:49,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-20 12:30:49,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778703582] [2022-11-20 12:30:49,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:49,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 12:30:49,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:49,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 12:30:49,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-11-20 12:30:49,132 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-20 12:30:49,134 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 634 transitions, 10415 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:49,134 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:49,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-20 12:30:49,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:58,191 INFO L130 PetriNetUnfolder]: 5548/16747 cut-off events. [2022-11-20 12:30:58,191 INFO L131 PetriNetUnfolder]: For 182430/369345 co-relation queries the response was YES. [2022-11-20 12:30:58,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74117 conditions, 16747 events. 5548/16747 cut-off events. For 182430/369345 co-relation queries the response was YES. Maximal size of possible extension queue 689. Compared 189391 event pairs, 2140 based on Foata normal form. 1654/16941 useless extension candidates. Maximal degree in co-relation 71924. Up to 7059 conditions per place. [2022-11-20 12:30:58,426 INFO L137 encePairwiseOnDemand]: 135/163 looper letters, 506 selfloop transitions, 199 changer transitions 13/788 dead transitions. [2022-11-20 12:30:58,426 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 788 transitions, 13359 flow [2022-11-20 12:30:58,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-20 12:30:58,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-11-20 12:30:58,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3202 transitions. [2022-11-20 12:30:58,431 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.633682960617455 [2022-11-20 12:30:58,431 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 3202 transitions. [2022-11-20 12:30:58,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 3202 transitions. [2022-11-20 12:30:58,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:58,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 3202 transitions. [2022-11-20 12:30:58,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 103.29032258064517) internal successors, (3202), 31 states have internal predecessors, (3202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:58,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 163.0) internal successors, (5216), 32 states have internal predecessors, (5216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:58,443 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 163.0) internal successors, (5216), 32 states have internal predecessors, (5216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:58,443 INFO L175 Difference]: Start difference. First operand has 418 places, 634 transitions, 10415 flow. Second operand 31 states and 3202 transitions. [2022-11-20 12:30:58,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 788 transitions, 13359 flow [2022-11-20 12:30:59,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 788 transitions, 12991 flow, removed 55 selfloop flow, removed 21 redundant places. [2022-11-20 12:30:59,949 INFO L231 Difference]: Finished difference. Result has 433 places, 665 transitions, 11228 flow [2022-11-20 12:30:59,949 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=10103, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=634, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=11228, PETRI_PLACES=433, PETRI_TRANSITIONS=665} [2022-11-20 12:30:59,950 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 299 predicate places. [2022-11-20 12:30:59,950 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 665 transitions, 11228 flow [2022-11-20 12:30:59,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:59,951 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:59,951 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:59,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:30:59,951 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:30:59,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:59,951 INFO L85 PathProgramCache]: Analyzing trace with hash 630121746, now seen corresponding path program 3 times [2022-11-20 12:30:59,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:59,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997914289] [2022-11-20 12:30:59,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:59,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:31:01,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:31:01,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:31:01,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997914289] [2022-11-20 12:31:01,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997914289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:31:01,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:31:01,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-20 12:31:01,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550580303] [2022-11-20 12:31:01,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:31:01,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 12:31:01,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:31:01,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 12:31:01,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2022-11-20 12:31:01,481 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 163 [2022-11-20 12:31:01,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 665 transitions, 11228 flow. Second operand has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:31:01,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:31:01,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 163 [2022-11-20 12:31:01,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:31:12,092 INFO L130 PetriNetUnfolder]: 5828/17656 cut-off events. [2022-11-20 12:31:12,092 INFO L131 PetriNetUnfolder]: For 245807/464840 co-relation queries the response was YES. [2022-11-20 12:31:12,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82372 conditions, 17656 events. 5828/17656 cut-off events. For 245807/464840 co-relation queries the response was YES. Maximal size of possible extension queue 731. Compared 201112 event pairs, 2170 based on Foata normal form. 1916/18012 useless extension candidates. Maximal degree in co-relation 80236. Up to 5744 conditions per place. [2022-11-20 12:31:12,444 INFO L137 encePairwiseOnDemand]: 134/163 looper letters, 492 selfloop transitions, 331 changer transitions 15/908 dead transitions. [2022-11-20 12:31:12,444 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 908 transitions, 15756 flow [2022-11-20 12:31:12,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-20 12:31:12,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-11-20 12:31:12,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3741 transitions. [2022-11-20 12:31:12,450 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6375255623721882 [2022-11-20 12:31:12,451 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 3741 transitions. [2022-11-20 12:31:12,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 3741 transitions. [2022-11-20 12:31:12,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:31:12,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 3741 transitions. [2022-11-20 12:31:12,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 103.91666666666667) internal successors, (3741), 36 states have internal predecessors, (3741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:31:12,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 163.0) internal successors, (6031), 37 states have internal predecessors, (6031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:31:12,467 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 163.0) internal successors, (6031), 37 states have internal predecessors, (6031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:31:12,467 INFO L175 Difference]: Start difference. First operand has 433 places, 665 transitions, 11228 flow. Second operand 36 states and 3741 transitions. [2022-11-20 12:31:12,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 908 transitions, 15756 flow [2022-11-20 12:31:14,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 908 transitions, 15509 flow, removed 57 selfloop flow, removed 15 redundant places. [2022-11-20 12:31:14,455 INFO L231 Difference]: Finished difference. Result has 462 places, 699 transitions, 12580 flow [2022-11-20 12:31:14,456 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=11032, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=665, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=297, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=12580, PETRI_PLACES=462, PETRI_TRANSITIONS=699} [2022-11-20 12:31:14,456 INFO L288 CegarLoopForPetriNet]: 134 programPoint places, 328 predicate places. [2022-11-20 12:31:14,457 INFO L495 AbstractCegarLoop]: Abstraction has has 462 places, 699 transitions, 12580 flow [2022-11-20 12:31:14,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 96.52) internal successors, (2413), 25 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:31:14,457 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:31:14,457 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:31:14,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:31:14,458 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-20 12:31:14,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:31:14,458 INFO L85 PathProgramCache]: Analyzing trace with hash 917009460, now seen corresponding path program 6 times [2022-11-20 12:31:14,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:31:14,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785647461] [2022-11-20 12:31:14,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:31:14,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:31:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat