./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d47549a3-4b77-4fec-96fb-77d79ac84637/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d47549a3-4b77-4fec-96fb-77d79ac84637/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d47549a3-4b77-4fec-96fb-77d79ac84637/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d47549a3-4b77-4fec-96fb-77d79ac84637/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d47549a3-4b77-4fec-96fb-77d79ac84637/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d47549a3-4b77-4fec-96fb-77d79ac84637/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 02b1c265b98bd14cc97fe77543b4e06699576e2091fa3d4102d013e6b3937418 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 18:25:06,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:25:06,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:25:06,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:25:06,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:25:06,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:25:06,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:25:06,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:25:06,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:25:06,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:25:06,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:25:06,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:25:06,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:25:06,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:25:06,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:25:06,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:25:06,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:25:06,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:25:06,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:25:06,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:25:06,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:25:06,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:25:06,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:25:06,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:25:06,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:25:06,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:25:06,618 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:25:06,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:25:06,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:25:06,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:25:06,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:25:06,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:25:06,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:25:06,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:25:06,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:25:06,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:25:06,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:25:06,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:25:06,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:25:06,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:25:06,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:25:06,624 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d47549a3-4b77-4fec-96fb-77d79ac84637/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 18:25:06,640 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:25:06,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:25:06,640 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:25:06,640 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:25:06,641 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:25:06,641 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:25:06,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:25:06,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:25:06,642 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:25:06,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:25:06,642 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:25:06,642 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:25:06,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:25:06,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:25:06,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:25:06,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:25:06,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:25:06,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:25:06,643 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 18:25:06,643 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:25:06,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:25:06,643 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:25:06,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:25:06,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:25:06,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:25:06,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:25:06,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:25:06,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:25:06,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:25:06,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:25:06,645 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:25:06,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:25:06,645 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:25:06,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:25:06,645 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:25:06,645 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:25:06,645 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:25:06,645 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d47549a3-4b77-4fec-96fb-77d79ac84637/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d47549a3-4b77-4fec-96fb-77d79ac84637/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02b1c265b98bd14cc97fe77543b4e06699576e2091fa3d4102d013e6b3937418 [2022-12-13 18:25:06,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:25:06,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:25:06,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:25:06,837 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:25:06,837 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:25:06,839 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d47549a3-4b77-4fec-96fb-77d79ac84637/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2022-12-13 18:25:09,450 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:25:09,695 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:25:09,696 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d47549a3-4b77-4fec-96fb-77d79ac84637/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2022-12-13 18:25:09,716 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d47549a3-4b77-4fec-96fb-77d79ac84637/bin/uautomizer-uyxdKDjOR8/data/2a588cd13/ef249231e0694f49846487568b730099/FLAGef1a3a02d [2022-12-13 18:25:09,728 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d47549a3-4b77-4fec-96fb-77d79ac84637/bin/uautomizer-uyxdKDjOR8/data/2a588cd13/ef249231e0694f49846487568b730099 [2022-12-13 18:25:09,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:25:09,731 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:25:09,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:25:09,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:25:09,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:25:09,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:25:09" (1/1) ... [2022-12-13 18:25:09,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aa30d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:25:09, skipping insertion in model container [2022-12-13 18:25:09,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:25:09" (1/1) ... [2022-12-13 18:25:09,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:25:09,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:25:09,893 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:25:10,312 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_d47549a3-4b77-4fec-96fb-77d79ac84637/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i[75009,75022] [2022-12-13 18:25:10,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:25:10,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:25:10,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:25:10,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:25:10,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:25:10,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:25:10,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:25:10,345 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:25:10,354 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:25:10,375 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_d47549a3-4b77-4fec-96fb-77d79ac84637/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i[75009,75022] [2022-12-13 18:25:10,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:25:10,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:25:10,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:25:10,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:25:10,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 18:25:10,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 18:25:10,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:25:10,476 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:25:10,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:25:10 WrapperNode [2022-12-13 18:25:10,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:25:10,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:25:10,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:25:10,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:25:10,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:25:10" (1/1) ... [2022-12-13 18:25:10,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:25:10" (1/1) ... [2022-12-13 18:25:10,528 INFO L138 Inliner]: procedures = 468, calls = 52, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 134 [2022-12-13 18:25:10,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:25:10,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:25:10,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:25:10,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:25:10,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:25:10" (1/1) ... [2022-12-13 18:25:10,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:25:10" (1/1) ... [2022-12-13 18:25:10,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:25:10" (1/1) ... [2022-12-13 18:25:10,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:25:10" (1/1) ... [2022-12-13 18:25:10,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:25:10" (1/1) ... [2022-12-13 18:25:10,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:25:10" (1/1) ... [2022-12-13 18:25:10,552 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:25:10" (1/1) ... [2022-12-13 18:25:10,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:25:10" (1/1) ... [2022-12-13 18:25:10,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:25:10,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:25:10,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:25:10,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:25:10,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:25:10" (1/1) ... [2022-12-13 18:25:10,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:25:10,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d47549a3-4b77-4fec-96fb-77d79ac84637/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:25:10,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d47549a3-4b77-4fec-96fb-77d79ac84637/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:25:10,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d47549a3-4b77-4fec-96fb-77d79ac84637/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:25:10,614 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 18:25:10,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:25:10,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 18:25:10,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 18:25:10,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:25:10,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 18:25:10,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:25:10,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:25:10,615 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-12-13 18:25:10,616 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-12-13 18:25:10,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:25:10,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 18:25:10,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:25:10,617 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 18:25:10,825 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:25:10,827 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:25:11,034 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:25:11,057 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:25:11,058 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 18:25:11,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:25:11 BoogieIcfgContainer [2022-12-13 18:25:11,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:25:11,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:25:11,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:25:11,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:25:11,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:25:09" (1/3) ... [2022-12-13 18:25:11,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127246e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:25:11, skipping insertion in model container [2022-12-13 18:25:11,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:25:10" (2/3) ... [2022-12-13 18:25:11,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127246e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:25:11, skipping insertion in model container [2022-12-13 18:25:11,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:25:11" (3/3) ... [2022-12-13 18:25:11,069 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2022-12-13 18:25:11,075 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 18:25:11,083 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:25:11,083 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:25:11,083 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 18:25:11,136 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 18:25:11,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 184 transitions, 384 flow [2022-12-13 18:25:11,244 INFO L130 PetriNetUnfolder]: 10/227 cut-off events. [2022-12-13 18:25:11,244 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 18:25:11,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 227 events. 10/227 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 327 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 135. Up to 4 conditions per place. [2022-12-13 18:25:11,249 INFO L82 GeneralOperation]: Start removeDead. Operand has 182 places, 184 transitions, 384 flow [2022-12-13 18:25:11,254 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 150 transitions, 309 flow [2022-12-13 18:25:11,258 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 18:25:11,269 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 150 transitions, 309 flow [2022-12-13 18:25:11,272 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 150 transitions, 309 flow [2022-12-13 18:25:11,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 150 transitions, 309 flow [2022-12-13 18:25:11,308 INFO L130 PetriNetUnfolder]: 4/150 cut-off events. [2022-12-13 18:25:11,308 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 18:25:11,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 150 events. 4/150 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 116 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-12-13 18:25:11,311 INFO L119 LiptonReduction]: Number of co-enabled transitions 2596 [2022-12-13 18:25:18,234 INFO L134 LiptonReduction]: Checked pairs total: 6229 [2022-12-13 18:25:18,234 INFO L136 LiptonReduction]: Total number of compositions: 154 [2022-12-13 18:25:18,245 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:25:18,249 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;@54ba231d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:25:18,249 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 18:25:18,252 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-12-13 18:25:18,252 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 18:25:18,252 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:18,253 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 18:25:18,253 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:18,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:18,256 INFO L85 PathProgramCache]: Analyzing trace with hash 18809983, now seen corresponding path program 1 times [2022-12-13 18:25:18,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:18,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537690414] [2022-12-13 18:25:18,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:18,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:18,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:18,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:18,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537690414] [2022-12-13 18:25:18,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537690414] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:18,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:18,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:25:18,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932585603] [2022-12-13 18:25:18,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:18,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 18:25:18,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:18,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 18:25:18,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 18:25:18,919 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 338 [2022-12-13 18:25:18,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 22 transitions, 53 flow. Second operand has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:18,922 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:18,922 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 338 [2022-12-13 18:25:18,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:19,023 INFO L130 PetriNetUnfolder]: 108/209 cut-off events. [2022-12-13 18:25:19,024 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-12-13 18:25:19,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 209 events. 108/209 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 733 event pairs, 105 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 384. Up to 206 conditions per place. [2022-12-13 18:25:19,025 INFO L137 encePairwiseOnDemand]: 331/338 looper letters, 18 selfloop transitions, 5 changer transitions 0/23 dead transitions. [2022-12-13 18:25:19,026 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 23 transitions, 101 flow [2022-12-13 18:25:19,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 18:25:19,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 18:25:19,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 626 transitions. [2022-12-13 18:25:19,037 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4630177514792899 [2022-12-13 18:25:19,038 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 626 transitions. [2022-12-13 18:25:19,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 626 transitions. [2022-12-13 18:25:19,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:19,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 626 transitions. [2022-12-13 18:25:19,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 156.5) internal successors, (626), 4 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:19,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:19,051 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:19,052 INFO L175 Difference]: Start difference. First operand has 29 places, 22 transitions, 53 flow. Second operand 4 states and 626 transitions. [2022-12-13 18:25:19,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 23 transitions, 101 flow [2022-12-13 18:25:19,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 23 transitions, 96 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 18:25:19,055 INFO L231 Difference]: Finished difference. Result has 27 places, 22 transitions, 74 flow [2022-12-13 18:25:19,057 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=27, PETRI_TRANSITIONS=22} [2022-12-13 18:25:19,060 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, -2 predicate places. [2022-12-13 18:25:19,060 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 22 transitions, 74 flow [2022-12-13 18:25:19,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:19,060 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:19,060 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 18:25:19,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:25:19,061 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:19,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:19,061 INFO L85 PathProgramCache]: Analyzing trace with hash 583106300, now seen corresponding path program 1 times [2022-12-13 18:25:19,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:19,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383282660] [2022-12-13 18:25:19,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:19,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:19,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:19,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:19,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383282660] [2022-12-13 18:25:19,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383282660] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:19,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:19,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:25:19,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064918020] [2022-12-13 18:25:19,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:19,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:25:19,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:19,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:25:19,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:25:19,490 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 338 [2022-12-13 18:25:19,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 74 flow. Second operand has 5 states, 5 states have (on average 150.0) internal successors, (750), 5 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:19,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:19,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 338 [2022-12-13 18:25:19,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:19,602 INFO L130 PetriNetUnfolder]: 140/263 cut-off events. [2022-12-13 18:25:19,602 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2022-12-13 18:25:19,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 623 conditions, 263 events. 140/263 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1008 event pairs, 43 based on Foata normal form. 11/223 useless extension candidates. Maximal degree in co-relation 406. Up to 112 conditions per place. [2022-12-13 18:25:19,603 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 29 selfloop transitions, 10 changer transitions 4/43 dead transitions. [2022-12-13 18:25:19,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 43 transitions, 216 flow [2022-12-13 18:25:19,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 18:25:19,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 18:25:19,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 639 transitions. [2022-12-13 18:25:19,606 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47263313609467456 [2022-12-13 18:25:19,606 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 639 transitions. [2022-12-13 18:25:19,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 639 transitions. [2022-12-13 18:25:19,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:19,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 639 transitions. [2022-12-13 18:25:19,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 159.75) internal successors, (639), 4 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:19,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:19,609 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:19,609 INFO L175 Difference]: Start difference. First operand has 27 places, 22 transitions, 74 flow. Second operand 4 states and 639 transitions. [2022-12-13 18:25:19,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 43 transitions, 216 flow [2022-12-13 18:25:19,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 43 transitions, 216 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:25:19,611 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 128 flow [2022-12-13 18:25:19,611 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=128, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2022-12-13 18:25:19,611 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2022-12-13 18:25:19,611 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 128 flow [2022-12-13 18:25:19,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 150.0) internal successors, (750), 5 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:19,612 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:19,612 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 18:25:19,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:25:19,612 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:19,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:19,613 INFO L85 PathProgramCache]: Analyzing trace with hash 583111880, now seen corresponding path program 2 times [2022-12-13 18:25:19,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:19,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244248556] [2022-12-13 18:25:19,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:19,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:19,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:19,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:19,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244248556] [2022-12-13 18:25:19,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244248556] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:19,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:19,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:25:19,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559358195] [2022-12-13 18:25:19,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:19,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:25:19,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:19,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:25:19,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:25:19,912 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 338 [2022-12-13 18:25:19,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 128 flow. Second operand has 5 states, 5 states have (on average 150.0) internal successors, (750), 5 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:19,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:19,914 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 338 [2022-12-13 18:25:19,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:20,035 INFO L130 PetriNetUnfolder]: 126/238 cut-off events. [2022-12-13 18:25:20,035 INFO L131 PetriNetUnfolder]: For 167/167 co-relation queries the response was YES. [2022-12-13 18:25:20,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 708 conditions, 238 events. 126/238 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 895 event pairs, 33 based on Foata normal form. 3/193 useless extension candidates. Maximal degree in co-relation 417. Up to 93 conditions per place. [2022-12-13 18:25:20,037 INFO L137 encePairwiseOnDemand]: 331/338 looper letters, 30 selfloop transitions, 11 changer transitions 2/43 dead transitions. [2022-12-13 18:25:20,038 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 43 transitions, 269 flow [2022-12-13 18:25:20,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 18:25:20,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 18:25:20,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 637 transitions. [2022-12-13 18:25:20,040 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47115384615384615 [2022-12-13 18:25:20,040 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 637 transitions. [2022-12-13 18:25:20,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 637 transitions. [2022-12-13 18:25:20,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:20,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 637 transitions. [2022-12-13 18:25:20,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 159.25) internal successors, (637), 4 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:20,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:20,046 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:20,046 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 128 flow. Second operand 4 states and 637 transitions. [2022-12-13 18:25:20,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 43 transitions, 269 flow [2022-12-13 18:25:20,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 43 transitions, 260 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 18:25:20,049 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 166 flow [2022-12-13 18:25:20,049 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2022-12-13 18:25:20,049 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 6 predicate places. [2022-12-13 18:25:20,050 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 166 flow [2022-12-13 18:25:20,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 150.0) internal successors, (750), 5 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:20,050 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:20,050 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 18:25:20,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 18:25:20,051 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:20,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:20,051 INFO L85 PathProgramCache]: Analyzing trace with hash 896310276, now seen corresponding path program 1 times [2022-12-13 18:25:20,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:20,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944682346] [2022-12-13 18:25:20,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:20,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:20,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:20,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:20,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944682346] [2022-12-13 18:25:20,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944682346] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:20,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:20,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:25:20,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538371622] [2022-12-13 18:25:20,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:20,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:25:20,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:20,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:25:20,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:25:20,540 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 338 [2022-12-13 18:25:20,540 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 166 flow. Second operand has 5 states, 5 states have (on average 150.2) internal successors, (751), 5 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:20,540 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:20,540 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 338 [2022-12-13 18:25:20,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:20,649 INFO L130 PetriNetUnfolder]: 96/188 cut-off events. [2022-12-13 18:25:20,649 INFO L131 PetriNetUnfolder]: For 283/283 co-relation queries the response was YES. [2022-12-13 18:25:20,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 630 conditions, 188 events. 96/188 cut-off events. For 283/283 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 631 event pairs, 35 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 338. Up to 89 conditions per place. [2022-12-13 18:25:20,650 INFO L137 encePairwiseOnDemand]: 331/338 looper letters, 28 selfloop transitions, 11 changer transitions 2/41 dead transitions. [2022-12-13 18:25:20,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 301 flow [2022-12-13 18:25:20,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 18:25:20,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 18:25:20,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 633 transitions. [2022-12-13 18:25:20,654 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4681952662721893 [2022-12-13 18:25:20,654 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 633 transitions. [2022-12-13 18:25:20,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 633 transitions. [2022-12-13 18:25:20,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:20,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 633 transitions. [2022-12-13 18:25:20,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 158.25) internal successors, (633), 4 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:20,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:20,657 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:20,657 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 166 flow. Second operand 4 states and 633 transitions. [2022-12-13 18:25:20,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 301 flow [2022-12-13 18:25:20,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 282 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-12-13 18:25:20,659 INFO L231 Difference]: Finished difference. Result has 39 places, 30 transitions, 213 flow [2022-12-13 18:25:20,659 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=213, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2022-12-13 18:25:20,659 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 10 predicate places. [2022-12-13 18:25:20,659 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 213 flow [2022-12-13 18:25:20,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 150.2) internal successors, (751), 5 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:20,660 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:20,664 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:20,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 18:25:20,664 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:20,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:20,665 INFO L85 PathProgramCache]: Analyzing trace with hash 2024732756, now seen corresponding path program 1 times [2022-12-13 18:25:20,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:20,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669789589] [2022-12-13 18:25:20,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:20,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:21,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:21,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:21,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669789589] [2022-12-13 18:25:21,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669789589] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:21,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:21,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 18:25:21,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619446134] [2022-12-13 18:25:21,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:21,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:25:21,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:21,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:25:21,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:25:21,122 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 338 [2022-12-13 18:25:21,124 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 213 flow. Second operand has 6 states, 6 states have (on average 150.16666666666666) internal successors, (901), 6 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:21,124 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:21,124 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 338 [2022-12-13 18:25:21,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:21,258 INFO L130 PetriNetUnfolder]: 84/168 cut-off events. [2022-12-13 18:25:21,258 INFO L131 PetriNetUnfolder]: For 426/426 co-relation queries the response was YES. [2022-12-13 18:25:21,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 168 events. 84/168 cut-off events. For 426/426 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 549 event pairs, 29 based on Foata normal form. 4/161 useless extension candidates. Maximal degree in co-relation 310. Up to 85 conditions per place. [2022-12-13 18:25:21,259 INFO L137 encePairwiseOnDemand]: 332/338 looper letters, 27 selfloop transitions, 11 changer transitions 2/40 dead transitions. [2022-12-13 18:25:21,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 40 transitions, 327 flow [2022-12-13 18:25:21,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 18:25:21,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 18:25:21,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 631 transitions. [2022-12-13 18:25:21,260 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46671597633136097 [2022-12-13 18:25:21,261 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 631 transitions. [2022-12-13 18:25:21,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 631 transitions. [2022-12-13 18:25:21,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:21,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 631 transitions. [2022-12-13 18:25:21,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 157.75) internal successors, (631), 4 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:21,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:21,263 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:21,263 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 213 flow. Second operand 4 states and 631 transitions. [2022-12-13 18:25:21,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 40 transitions, 327 flow [2022-12-13 18:25:21,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 40 transitions, 313 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-12-13 18:25:21,267 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 242 flow [2022-12-13 18:25:21,267 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2022-12-13 18:25:21,267 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 13 predicate places. [2022-12-13 18:25:21,268 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 242 flow [2022-12-13 18:25:21,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.16666666666666) internal successors, (901), 6 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:21,268 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:21,268 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:21,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 18:25:21,269 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:21,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:21,269 INFO L85 PathProgramCache]: Analyzing trace with hash 2015817763, now seen corresponding path program 1 times [2022-12-13 18:25:21,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:21,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640029825] [2022-12-13 18:25:21,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:21,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:21,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:21,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:21,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640029825] [2022-12-13 18:25:21,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640029825] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:21,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:21,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 18:25:21,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661465156] [2022-12-13 18:25:21,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:21,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:25:21,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:21,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:25:21,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:25:21,714 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 338 [2022-12-13 18:25:21,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 242 flow. Second operand has 6 states, 6 states have (on average 150.16666666666666) internal successors, (901), 6 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:21,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:21,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 338 [2022-12-13 18:25:21,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:21,816 INFO L130 PetriNetUnfolder]: 72/148 cut-off events. [2022-12-13 18:25:21,816 INFO L131 PetriNetUnfolder]: For 549/549 co-relation queries the response was YES. [2022-12-13 18:25:21,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 148 events. 72/148 cut-off events. For 549/549 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 449 event pairs, 23 based on Foata normal form. 4/145 useless extension candidates. Maximal degree in co-relation 301. Up to 81 conditions per place. [2022-12-13 18:25:21,817 INFO L137 encePairwiseOnDemand]: 332/338 looper letters, 24 selfloop transitions, 12 changer transitions 2/38 dead transitions. [2022-12-13 18:25:21,817 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 38 transitions, 345 flow [2022-12-13 18:25:21,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 18:25:21,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 18:25:21,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 627 transitions. [2022-12-13 18:25:21,818 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46375739644970415 [2022-12-13 18:25:21,818 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 627 transitions. [2022-12-13 18:25:21,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 627 transitions. [2022-12-13 18:25:21,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:21,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 627 transitions. [2022-12-13 18:25:21,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 156.75) internal successors, (627), 4 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:21,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:21,821 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:21,821 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 242 flow. Second operand 4 states and 627 transitions. [2022-12-13 18:25:21,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 38 transitions, 345 flow [2022-12-13 18:25:21,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 38 transitions, 323 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-13 18:25:21,823 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 269 flow [2022-12-13 18:25:21,823 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=269, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2022-12-13 18:25:21,824 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 15 predicate places. [2022-12-13 18:25:21,824 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 269 flow [2022-12-13 18:25:21,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.16666666666666) internal successors, (901), 6 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:21,824 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:21,824 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:21,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 18:25:21,824 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:21,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:21,825 INFO L85 PathProgramCache]: Analyzing trace with hash 625413310, now seen corresponding path program 1 times [2022-12-13 18:25:21,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:21,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185341389] [2022-12-13 18:25:21,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:21,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:22,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:22,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:22,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185341389] [2022-12-13 18:25:22,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185341389] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:22,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:22,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 18:25:22,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61488336] [2022-12-13 18:25:22,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:22,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:25:22,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:22,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:25:22,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:25:22,257 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 338 [2022-12-13 18:25:22,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 269 flow. Second operand has 5 states, 5 states have (on average 153.8) internal successors, (769), 5 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:22,259 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:22,259 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 338 [2022-12-13 18:25:22,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:22,407 INFO L130 PetriNetUnfolder]: 89/189 cut-off events. [2022-12-13 18:25:22,407 INFO L131 PetriNetUnfolder]: For 638/638 co-relation queries the response was YES. [2022-12-13 18:25:22,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 189 events. 89/189 cut-off events. For 638/638 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 687 event pairs, 15 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 522. Up to 97 conditions per place. [2022-12-13 18:25:22,409 INFO L137 encePairwiseOnDemand]: 328/338 looper letters, 30 selfloop transitions, 22 changer transitions 3/55 dead transitions. [2022-12-13 18:25:22,409 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 55 transitions, 448 flow [2022-12-13 18:25:22,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 18:25:22,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 18:25:22,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1264 transitions. [2022-12-13 18:25:22,412 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46745562130177515 [2022-12-13 18:25:22,412 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1264 transitions. [2022-12-13 18:25:22,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1264 transitions. [2022-12-13 18:25:22,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:22,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1264 transitions. [2022-12-13 18:25:22,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 158.0) internal successors, (1264), 8 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:22,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:22,421 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:22,421 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 269 flow. Second operand 8 states and 1264 transitions. [2022-12-13 18:25:22,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 55 transitions, 448 flow [2022-12-13 18:25:22,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 55 transitions, 427 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 18:25:22,424 INFO L231 Difference]: Finished difference. Result has 51 places, 38 transitions, 338 flow [2022-12-13 18:25:22,424 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=338, PETRI_PLACES=51, PETRI_TRANSITIONS=38} [2022-12-13 18:25:22,425 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 22 predicate places. [2022-12-13 18:25:22,425 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 38 transitions, 338 flow [2022-12-13 18:25:22,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 153.8) internal successors, (769), 5 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:22,425 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:22,425 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:22,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 18:25:22,426 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:22,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:22,426 INFO L85 PathProgramCache]: Analyzing trace with hash 172886847, now seen corresponding path program 1 times [2022-12-13 18:25:22,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:22,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9454644] [2022-12-13 18:25:22,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:22,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:22,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:22,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:22,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9454644] [2022-12-13 18:25:22,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9454644] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:22,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:22,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:25:22,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813073984] [2022-12-13 18:25:22,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:22,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:25:22,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:22,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:25:22,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:25:23,110 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 338 [2022-12-13 18:25:23,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 338 flow. Second operand has 8 states, 8 states have (on average 147.125) internal successors, (1177), 8 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:23,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:23,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 338 [2022-12-13 18:25:23,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:23,345 INFO L130 PetriNetUnfolder]: 81/182 cut-off events. [2022-12-13 18:25:23,345 INFO L131 PetriNetUnfolder]: For 813/813 co-relation queries the response was YES. [2022-12-13 18:25:23,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 182 events. 81/182 cut-off events. For 813/813 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 678 event pairs, 8 based on Foata normal form. 6/188 useless extension candidates. Maximal degree in co-relation 607. Up to 47 conditions per place. [2022-12-13 18:25:23,347 INFO L137 encePairwiseOnDemand]: 328/338 looper letters, 36 selfloop transitions, 26 changer transitions 6/68 dead transitions. [2022-12-13 18:25:23,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 68 transitions, 595 flow [2022-12-13 18:25:23,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 18:25:23,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 18:25:23,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1811 transitions. [2022-12-13 18:25:23,349 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4464990138067061 [2022-12-13 18:25:23,350 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1811 transitions. [2022-12-13 18:25:23,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1811 transitions. [2022-12-13 18:25:23,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:23,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1811 transitions. [2022-12-13 18:25:23,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 150.91666666666666) internal successors, (1811), 12 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:23,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 338.0) internal successors, (4394), 13 states have internal predecessors, (4394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:23,357 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 338.0) internal successors, (4394), 13 states have internal predecessors, (4394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:23,357 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 338 flow. Second operand 12 states and 1811 transitions. [2022-12-13 18:25:23,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 68 transitions, 595 flow [2022-12-13 18:25:23,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 68 transitions, 566 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-12-13 18:25:23,359 INFO L231 Difference]: Finished difference. Result has 60 places, 42 transitions, 403 flow [2022-12-13 18:25:23,360 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=403, PETRI_PLACES=60, PETRI_TRANSITIONS=42} [2022-12-13 18:25:23,360 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 31 predicate places. [2022-12-13 18:25:23,360 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 42 transitions, 403 flow [2022-12-13 18:25:23,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 147.125) internal successors, (1177), 8 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:23,361 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:23,361 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:23,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 18:25:23,361 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:23,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:23,361 INFO L85 PathProgramCache]: Analyzing trace with hash 144017034, now seen corresponding path program 2 times [2022-12-13 18:25:23,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:23,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683353254] [2022-12-13 18:25:23,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:23,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:23,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:23,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:23,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683353254] [2022-12-13 18:25:23,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683353254] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:23,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:23,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 18:25:23,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771364797] [2022-12-13 18:25:23,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:23,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:25:23,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:23,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:25:23,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:25:23,634 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 338 [2022-12-13 18:25:23,635 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 42 transitions, 403 flow. Second operand has 5 states, 5 states have (on average 153.8) internal successors, (769), 5 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:23,635 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:23,635 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 338 [2022-12-13 18:25:23,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:23,775 INFO L130 PetriNetUnfolder]: 81/198 cut-off events. [2022-12-13 18:25:23,775 INFO L131 PetriNetUnfolder]: For 938/938 co-relation queries the response was YES. [2022-12-13 18:25:23,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 841 conditions, 198 events. 81/198 cut-off events. For 938/938 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 804 event pairs, 10 based on Foata normal form. 5/203 useless extension candidates. Maximal degree in co-relation 750. Up to 81 conditions per place. [2022-12-13 18:25:23,777 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 43 selfloop transitions, 18 changer transitions 1/62 dead transitions. [2022-12-13 18:25:23,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 62 transitions, 606 flow [2022-12-13 18:25:23,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:25:23,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 18:25:23,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1110 transitions. [2022-12-13 18:25:23,780 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4691462383770076 [2022-12-13 18:25:23,781 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1110 transitions. [2022-12-13 18:25:23,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1110 transitions. [2022-12-13 18:25:23,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:23,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1110 transitions. [2022-12-13 18:25:23,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 158.57142857142858) internal successors, (1110), 7 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:23,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:23,788 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:23,788 INFO L175 Difference]: Start difference. First operand has 60 places, 42 transitions, 403 flow. Second operand 7 states and 1110 transitions. [2022-12-13 18:25:23,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 62 transitions, 606 flow [2022-12-13 18:25:23,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 62 transitions, 528 flow, removed 8 selfloop flow, removed 8 redundant places. [2022-12-13 18:25:23,793 INFO L231 Difference]: Finished difference. Result has 59 places, 44 transitions, 391 flow [2022-12-13 18:25:23,793 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=391, PETRI_PLACES=59, PETRI_TRANSITIONS=44} [2022-12-13 18:25:23,793 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 30 predicate places. [2022-12-13 18:25:23,794 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 44 transitions, 391 flow [2022-12-13 18:25:23,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 153.8) internal successors, (769), 5 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:23,794 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:23,794 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:23,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 18:25:23,794 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:23,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:23,795 INFO L85 PathProgramCache]: Analyzing trace with hash 176843575, now seen corresponding path program 1 times [2022-12-13 18:25:23,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:23,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297504297] [2022-12-13 18:25:23,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:23,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:24,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:24,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:24,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297504297] [2022-12-13 18:25:24,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297504297] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:24,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:24,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:25:24,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425316729] [2022-12-13 18:25:24,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:24,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:25:24,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:24,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:25:24,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:25:24,660 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 338 [2022-12-13 18:25:24,661 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 44 transitions, 391 flow. Second operand has 8 states, 8 states have (on average 147.125) internal successors, (1177), 8 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:24,661 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:24,661 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 338 [2022-12-13 18:25:24,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:24,919 INFO L130 PetriNetUnfolder]: 80/195 cut-off events. [2022-12-13 18:25:24,920 INFO L131 PetriNetUnfolder]: For 744/744 co-relation queries the response was YES. [2022-12-13 18:25:24,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 813 conditions, 195 events. 80/195 cut-off events. For 744/744 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 779 event pairs, 22 based on Foata normal form. 2/197 useless extension candidates. Maximal degree in co-relation 730. Up to 122 conditions per place. [2022-12-13 18:25:24,921 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 35 selfloop transitions, 16 changer transitions 7/58 dead transitions. [2022-12-13 18:25:24,921 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 58 transitions, 553 flow [2022-12-13 18:25:24,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 18:25:24,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 18:25:24,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1209 transitions. [2022-12-13 18:25:24,926 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44711538461538464 [2022-12-13 18:25:24,926 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1209 transitions. [2022-12-13 18:25:24,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1209 transitions. [2022-12-13 18:25:24,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:24,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1209 transitions. [2022-12-13 18:25:24,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:24,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:24,930 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:24,930 INFO L175 Difference]: Start difference. First operand has 59 places, 44 transitions, 391 flow. Second operand 8 states and 1209 transitions. [2022-12-13 18:25:24,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 58 transitions, 553 flow [2022-12-13 18:25:24,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 58 transitions, 529 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-12-13 18:25:24,933 INFO L231 Difference]: Finished difference. Result has 65 places, 43 transitions, 397 flow [2022-12-13 18:25:24,933 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=397, PETRI_PLACES=65, PETRI_TRANSITIONS=43} [2022-12-13 18:25:24,934 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 36 predicate places. [2022-12-13 18:25:24,934 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 43 transitions, 397 flow [2022-12-13 18:25:24,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 147.125) internal successors, (1177), 8 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:24,934 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:24,934 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:24,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 18:25:24,935 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:24,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:24,935 INFO L85 PathProgramCache]: Analyzing trace with hash 166781906, now seen corresponding path program 1 times [2022-12-13 18:25:24,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:24,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750004894] [2022-12-13 18:25:24,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:24,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:24,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:25,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:25,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:25,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750004894] [2022-12-13 18:25:25,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750004894] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:25,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:25,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:25:25,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035286687] [2022-12-13 18:25:25,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:25,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:25:25,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:25,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:25:25,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:25:25,566 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 338 [2022-12-13 18:25:25,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 43 transitions, 397 flow. Second operand has 7 states, 7 states have (on average 148.28571428571428) internal successors, (1038), 7 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:25,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:25,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 338 [2022-12-13 18:25:25,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:25,906 INFO L130 PetriNetUnfolder]: 78/201 cut-off events. [2022-12-13 18:25:25,906 INFO L131 PetriNetUnfolder]: For 718/718 co-relation queries the response was YES. [2022-12-13 18:25:25,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 201 events. 78/201 cut-off events. For 718/718 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 850 event pairs, 6 based on Foata normal form. 2/203 useless extension candidates. Maximal degree in co-relation 833. Up to 42 conditions per place. [2022-12-13 18:25:25,908 INFO L137 encePairwiseOnDemand]: 329/338 looper letters, 39 selfloop transitions, 30 changer transitions 4/73 dead transitions. [2022-12-13 18:25:25,908 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 73 transitions, 665 flow [2022-12-13 18:25:25,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 18:25:25,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 18:25:25,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1828 transitions. [2022-12-13 18:25:25,910 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45069033530571995 [2022-12-13 18:25:25,911 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1828 transitions. [2022-12-13 18:25:25,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1828 transitions. [2022-12-13 18:25:25,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:25,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1828 transitions. [2022-12-13 18:25:25,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 152.33333333333334) internal successors, (1828), 12 states have internal predecessors, (1828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:25,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 338.0) internal successors, (4394), 13 states have internal predecessors, (4394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:25,917 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 338.0) internal successors, (4394), 13 states have internal predecessors, (4394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:25,917 INFO L175 Difference]: Start difference. First operand has 65 places, 43 transitions, 397 flow. Second operand 12 states and 1828 transitions. [2022-12-13 18:25:25,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 73 transitions, 665 flow [2022-12-13 18:25:25,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 73 transitions, 633 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-12-13 18:25:25,921 INFO L231 Difference]: Finished difference. Result has 73 places, 46 transitions, 474 flow [2022-12-13 18:25:25,921 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=474, PETRI_PLACES=73, PETRI_TRANSITIONS=46} [2022-12-13 18:25:25,921 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 44 predicate places. [2022-12-13 18:25:25,921 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 46 transitions, 474 flow [2022-12-13 18:25:25,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 148.28571428571428) internal successors, (1038), 7 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:25,922 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:25,922 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:25,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 18:25:25,922 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:25,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:25,922 INFO L85 PathProgramCache]: Analyzing trace with hash 166754935, now seen corresponding path program 2 times [2022-12-13 18:25:25,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:25,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651268316] [2022-12-13 18:25:25,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:25,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:26,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:26,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:26,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651268316] [2022-12-13 18:25:26,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651268316] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:26,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:26,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:25:26,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367953523] [2022-12-13 18:25:26,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:26,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:25:26,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:26,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:25:26,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:25:26,548 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 338 [2022-12-13 18:25:26,550 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 46 transitions, 474 flow. Second operand has 8 states, 8 states have (on average 147.125) internal successors, (1177), 8 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:26,550 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:26,550 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 338 [2022-12-13 18:25:26,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:26,782 INFO L130 PetriNetUnfolder]: 76/199 cut-off events. [2022-12-13 18:25:26,782 INFO L131 PetriNetUnfolder]: For 811/811 co-relation queries the response was YES. [2022-12-13 18:25:26,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 917 conditions, 199 events. 76/199 cut-off events. For 811/811 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 837 event pairs, 22 based on Foata normal form. 2/201 useless extension candidates. Maximal degree in co-relation 856. Up to 121 conditions per place. [2022-12-13 18:25:26,783 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 37 selfloop transitions, 22 changer transitions 3/62 dead transitions. [2022-12-13 18:25:26,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 62 transitions, 656 flow [2022-12-13 18:25:26,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 18:25:26,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 18:25:26,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1507 transitions. [2022-12-13 18:25:26,786 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44585798816568045 [2022-12-13 18:25:26,786 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1507 transitions. [2022-12-13 18:25:26,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1507 transitions. [2022-12-13 18:25:26,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:26,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1507 transitions. [2022-12-13 18:25:26,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 150.7) internal successors, (1507), 10 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:26,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 338.0) internal successors, (3718), 11 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:26,794 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 338.0) internal successors, (3718), 11 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:26,794 INFO L175 Difference]: Start difference. First operand has 73 places, 46 transitions, 474 flow. Second operand 10 states and 1507 transitions. [2022-12-13 18:25:26,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 62 transitions, 656 flow [2022-12-13 18:25:26,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 62 transitions, 580 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-12-13 18:25:26,798 INFO L231 Difference]: Finished difference. Result has 76 places, 47 transitions, 452 flow [2022-12-13 18:25:26,798 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=452, PETRI_PLACES=76, PETRI_TRANSITIONS=47} [2022-12-13 18:25:26,799 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 47 predicate places. [2022-12-13 18:25:26,799 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 47 transitions, 452 flow [2022-12-13 18:25:26,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 147.125) internal successors, (1177), 8 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:26,800 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:26,800 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:26,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 18:25:26,801 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:26,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:26,801 INFO L85 PathProgramCache]: Analyzing trace with hash 166781905, now seen corresponding path program 3 times [2022-12-13 18:25:26,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:26,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499774489] [2022-12-13 18:25:26,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:26,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:27,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:27,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:27,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499774489] [2022-12-13 18:25:27,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499774489] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:27,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:27,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:25:27,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361354810] [2022-12-13 18:25:27,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:27,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:25:27,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:27,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:25:27,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:25:27,437 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 338 [2022-12-13 18:25:27,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 47 transitions, 452 flow. Second operand has 8 states, 8 states have (on average 147.125) internal successors, (1177), 8 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:27,438 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:27,438 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 338 [2022-12-13 18:25:27,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:27,769 INFO L130 PetriNetUnfolder]: 60/171 cut-off events. [2022-12-13 18:25:27,769 INFO L131 PetriNetUnfolder]: For 578/578 co-relation queries the response was YES. [2022-12-13 18:25:27,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 780 conditions, 171 events. 60/171 cut-off events. For 578/578 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 722 event pairs, 15 based on Foata normal form. 2/173 useless extension candidates. Maximal degree in co-relation 720. Up to 86 conditions per place. [2022-12-13 18:25:27,770 INFO L137 encePairwiseOnDemand]: 329/338 looper letters, 37 selfloop transitions, 22 changer transitions 5/64 dead transitions. [2022-12-13 18:25:27,770 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 64 transitions, 636 flow [2022-12-13 18:25:27,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 18:25:27,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 18:25:27,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1801 transitions. [2022-12-13 18:25:27,774 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44403353057199213 [2022-12-13 18:25:27,775 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1801 transitions. [2022-12-13 18:25:27,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1801 transitions. [2022-12-13 18:25:27,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:27,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1801 transitions. [2022-12-13 18:25:27,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 150.08333333333334) internal successors, (1801), 12 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:27,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 338.0) internal successors, (4394), 13 states have internal predecessors, (4394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:27,784 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 338.0) internal successors, (4394), 13 states have internal predecessors, (4394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:27,785 INFO L175 Difference]: Start difference. First operand has 76 places, 47 transitions, 452 flow. Second operand 12 states and 1801 transitions. [2022-12-13 18:25:27,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 64 transitions, 636 flow [2022-12-13 18:25:27,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 64 transitions, 568 flow, removed 2 selfloop flow, removed 8 redundant places. [2022-12-13 18:25:27,789 INFO L231 Difference]: Finished difference. Result has 80 places, 46 transitions, 423 flow [2022-12-13 18:25:27,790 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=423, PETRI_PLACES=80, PETRI_TRANSITIONS=46} [2022-12-13 18:25:27,790 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 51 predicate places. [2022-12-13 18:25:27,790 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 46 transitions, 423 flow [2022-12-13 18:25:27,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 147.125) internal successors, (1177), 8 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:27,791 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:27,791 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:27,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 18:25:27,791 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:27,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:27,792 INFO L85 PathProgramCache]: Analyzing trace with hash 166754936, now seen corresponding path program 2 times [2022-12-13 18:25:27,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:27,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131214437] [2022-12-13 18:25:27,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:27,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:28,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:28,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:28,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131214437] [2022-12-13 18:25:28,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131214437] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:28,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:28,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:25:28,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660243764] [2022-12-13 18:25:28,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:28,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:25:28,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:28,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:25:28,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:25:28,434 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 338 [2022-12-13 18:25:28,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 46 transitions, 423 flow. Second operand has 8 states, 8 states have (on average 147.125) internal successors, (1177), 8 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:28,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:28,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 338 [2022-12-13 18:25:28,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:28,693 INFO L130 PetriNetUnfolder]: 56/159 cut-off events. [2022-12-13 18:25:28,694 INFO L131 PetriNetUnfolder]: For 487/487 co-relation queries the response was YES. [2022-12-13 18:25:28,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 700 conditions, 159 events. 56/159 cut-off events. For 487/487 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 640 event pairs, 15 based on Foata normal form. 2/161 useless extension candidates. Maximal degree in co-relation 671. Up to 86 conditions per place. [2022-12-13 18:25:28,694 INFO L137 encePairwiseOnDemand]: 329/338 looper letters, 34 selfloop transitions, 19 changer transitions 5/58 dead transitions. [2022-12-13 18:25:28,695 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 58 transitions, 561 flow [2022-12-13 18:25:28,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 18:25:28,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 18:25:28,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1503 transitions. [2022-12-13 18:25:28,697 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44467455621301777 [2022-12-13 18:25:28,697 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1503 transitions. [2022-12-13 18:25:28,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1503 transitions. [2022-12-13 18:25:28,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:28,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1503 transitions. [2022-12-13 18:25:28,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 150.3) internal successors, (1503), 10 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:28,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 338.0) internal successors, (3718), 11 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:28,701 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 338.0) internal successors, (3718), 11 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:28,701 INFO L175 Difference]: Start difference. First operand has 80 places, 46 transitions, 423 flow. Second operand 10 states and 1503 transitions. [2022-12-13 18:25:28,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 58 transitions, 561 flow [2022-12-13 18:25:28,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 58 transitions, 496 flow, removed 2 selfloop flow, removed 12 redundant places. [2022-12-13 18:25:28,703 INFO L231 Difference]: Finished difference. Result has 73 places, 42 transitions, 361 flow [2022-12-13 18:25:28,704 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=361, PETRI_PLACES=73, PETRI_TRANSITIONS=42} [2022-12-13 18:25:28,704 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 44 predicate places. [2022-12-13 18:25:28,704 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 42 transitions, 361 flow [2022-12-13 18:25:28,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 147.125) internal successors, (1177), 8 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:28,704 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:28,704 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:28,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 18:25:28,704 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:28,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:28,705 INFO L85 PathProgramCache]: Analyzing trace with hash 170576726, now seen corresponding path program 3 times [2022-12-13 18:25:28,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:28,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477659627] [2022-12-13 18:25:28,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:28,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:29,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:29,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:29,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477659627] [2022-12-13 18:25:29,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477659627] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:29,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:29,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:25:29,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620184492] [2022-12-13 18:25:29,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:29,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:25:29,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:29,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:25:29,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:25:29,133 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 338 [2022-12-13 18:25:29,134 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 42 transitions, 361 flow. Second operand has 7 states, 7 states have (on average 148.28571428571428) internal successors, (1038), 7 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:29,134 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:29,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 338 [2022-12-13 18:25:29,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:29,278 INFO L130 PetriNetUnfolder]: 51/143 cut-off events. [2022-12-13 18:25:29,278 INFO L131 PetriNetUnfolder]: For 468/468 co-relation queries the response was YES. [2022-12-13 18:25:29,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 143 events. 51/143 cut-off events. For 468/468 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 544 event pairs, 18 based on Foata normal form. 3/146 useless extension candidates. Maximal degree in co-relation 567. Up to 55 conditions per place. [2022-12-13 18:25:29,279 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 32 selfloop transitions, 19 changer transitions 0/51 dead transitions. [2022-12-13 18:25:29,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 51 transitions, 478 flow [2022-12-13 18:25:29,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:25:29,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 18:25:29,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1065 transitions. [2022-12-13 18:25:29,280 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45012679628064245 [2022-12-13 18:25:29,280 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1065 transitions. [2022-12-13 18:25:29,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1065 transitions. [2022-12-13 18:25:29,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:29,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1065 transitions. [2022-12-13 18:25:29,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 152.14285714285714) internal successors, (1065), 7 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:29,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:29,284 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:29,284 INFO L175 Difference]: Start difference. First operand has 73 places, 42 transitions, 361 flow. Second operand 7 states and 1065 transitions. [2022-12-13 18:25:29,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 51 transitions, 478 flow [2022-12-13 18:25:29,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 51 transitions, 424 flow, removed 1 selfloop flow, removed 10 redundant places. [2022-12-13 18:25:29,286 INFO L231 Difference]: Finished difference. Result has 63 places, 41 transitions, 336 flow [2022-12-13 18:25:29,286 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=336, PETRI_PLACES=63, PETRI_TRANSITIONS=41} [2022-12-13 18:25:29,287 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 34 predicate places. [2022-12-13 18:25:29,287 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 41 transitions, 336 flow [2022-12-13 18:25:29,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 148.28571428571428) internal successors, (1038), 7 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:29,287 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:29,287 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:29,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 18:25:29,287 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:29,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:29,288 INFO L85 PathProgramCache]: Analyzing trace with hash 170587465, now seen corresponding path program 4 times [2022-12-13 18:25:29,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:29,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384790935] [2022-12-13 18:25:29,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:29,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:29,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:29,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:29,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384790935] [2022-12-13 18:25:29,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384790935] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:29,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:29,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:25:29,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193691824] [2022-12-13 18:25:29,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:29,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:25:29,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:29,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:25:29,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:25:29,808 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 338 [2022-12-13 18:25:29,809 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 41 transitions, 336 flow. Second operand has 8 states, 8 states have (on average 147.125) internal successors, (1177), 8 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:29,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:29,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 338 [2022-12-13 18:25:29,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:30,013 INFO L130 PetriNetUnfolder]: 50/140 cut-off events. [2022-12-13 18:25:30,013 INFO L131 PetriNetUnfolder]: For 405/405 co-relation queries the response was YES. [2022-12-13 18:25:30,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 140 events. 50/140 cut-off events. For 405/405 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 524 event pairs, 14 based on Foata normal form. 2/142 useless extension candidates. Maximal degree in co-relation 490. Up to 79 conditions per place. [2022-12-13 18:25:30,014 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 32 selfloop transitions, 16 changer transitions 5/53 dead transitions. [2022-12-13 18:25:30,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 53 transitions, 468 flow [2022-12-13 18:25:30,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 18:25:30,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 18:25:30,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1354 transitions. [2022-12-13 18:25:30,016 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4451019066403682 [2022-12-13 18:25:30,016 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1354 transitions. [2022-12-13 18:25:30,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1354 transitions. [2022-12-13 18:25:30,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:30,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1354 transitions. [2022-12-13 18:25:30,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 150.44444444444446) internal successors, (1354), 9 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:30,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 338.0) internal successors, (3380), 10 states have internal predecessors, (3380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:30,019 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 338.0) internal successors, (3380), 10 states have internal predecessors, (3380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:30,019 INFO L175 Difference]: Start difference. First operand has 63 places, 41 transitions, 336 flow. Second operand 9 states and 1354 transitions. [2022-12-13 18:25:30,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 53 transitions, 468 flow [2022-12-13 18:25:30,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 53 transitions, 434 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-12-13 18:25:30,022 INFO L231 Difference]: Finished difference. Result has 64 places, 38 transitions, 314 flow [2022-12-13 18:25:30,022 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=314, PETRI_PLACES=64, PETRI_TRANSITIONS=38} [2022-12-13 18:25:30,022 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 35 predicate places. [2022-12-13 18:25:30,023 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 38 transitions, 314 flow [2022-12-13 18:25:30,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 147.125) internal successors, (1177), 8 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:30,023 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:30,023 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:30,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 18:25:30,023 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:30,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:30,024 INFO L85 PathProgramCache]: Analyzing trace with hash 602954741, now seen corresponding path program 2 times [2022-12-13 18:25:30,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:30,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073871647] [2022-12-13 18:25:30,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:30,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:30,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:30,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:30,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073871647] [2022-12-13 18:25:30,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073871647] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:30,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:30,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:25:30,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114630869] [2022-12-13 18:25:30,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:30,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:25:30,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:30,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:25:30,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:25:30,526 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 338 [2022-12-13 18:25:30,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 38 transitions, 314 flow. Second operand has 8 states, 8 states have (on average 147.125) internal successors, (1177), 8 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:30,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:30,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 338 [2022-12-13 18:25:30,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:30,753 INFO L130 PetriNetUnfolder]: 43/122 cut-off events. [2022-12-13 18:25:30,753 INFO L131 PetriNetUnfolder]: For 327/327 co-relation queries the response was YES. [2022-12-13 18:25:30,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 122 events. 43/122 cut-off events. For 327/327 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 434 event pairs, 4 based on Foata normal form. 3/125 useless extension candidates. Maximal degree in co-relation 427. Up to 24 conditions per place. [2022-12-13 18:25:30,753 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 25 selfloop transitions, 27 changer transitions 0/52 dead transitions. [2022-12-13 18:25:30,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 52 transitions, 461 flow [2022-12-13 18:25:30,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 18:25:30,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 18:25:30,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1645 transitions. [2022-12-13 18:25:30,755 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.442442173211404 [2022-12-13 18:25:30,755 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1645 transitions. [2022-12-13 18:25:30,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1645 transitions. [2022-12-13 18:25:30,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:30,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1645 transitions. [2022-12-13 18:25:30,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 149.54545454545453) internal successors, (1645), 11 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:30,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 338.0) internal successors, (4056), 12 states have internal predecessors, (4056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:30,759 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 338.0) internal successors, (4056), 12 states have internal predecessors, (4056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:30,759 INFO L175 Difference]: Start difference. First operand has 64 places, 38 transitions, 314 flow. Second operand 11 states and 1645 transitions. [2022-12-13 18:25:30,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 52 transitions, 461 flow [2022-12-13 18:25:30,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 52 transitions, 416 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-12-13 18:25:30,761 INFO L231 Difference]: Finished difference. Result has 63 places, 39 transitions, 361 flow [2022-12-13 18:25:30,761 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=361, PETRI_PLACES=63, PETRI_TRANSITIONS=39} [2022-12-13 18:25:30,761 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 34 predicate places. [2022-12-13 18:25:30,761 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 39 transitions, 361 flow [2022-12-13 18:25:30,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 147.125) internal successors, (1177), 8 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:30,761 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:30,761 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:30,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 18:25:30,762 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:30,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:30,762 INFO L85 PathProgramCache]: Analyzing trace with hash 602954740, now seen corresponding path program 4 times [2022-12-13 18:25:30,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:30,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707485531] [2022-12-13 18:25:30,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:30,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:30,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:30,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:30,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707485531] [2022-12-13 18:25:30,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707485531] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:30,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:30,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:25:30,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971862439] [2022-12-13 18:25:30,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:30,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:25:30,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:30,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:25:30,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:25:31,109 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 338 [2022-12-13 18:25:31,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 39 transitions, 361 flow. Second operand has 7 states, 7 states have (on average 152.28571428571428) internal successors, (1066), 7 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:31,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:31,110 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 338 [2022-12-13 18:25:31,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:31,224 INFO L130 PetriNetUnfolder]: 41/115 cut-off events. [2022-12-13 18:25:31,224 INFO L131 PetriNetUnfolder]: For 386/386 co-relation queries the response was YES. [2022-12-13 18:25:31,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 115 events. 41/115 cut-off events. For 386/386 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 395 event pairs, 7 based on Foata normal form. 3/118 useless extension candidates. Maximal degree in co-relation 455. Up to 42 conditions per place. [2022-12-13 18:25:31,225 INFO L137 encePairwiseOnDemand]: 332/338 looper letters, 24 selfloop transitions, 19 changer transitions 0/43 dead transitions. [2022-12-13 18:25:31,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 43 transitions, 441 flow [2022-12-13 18:25:31,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 18:25:31,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 18:25:31,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1236 transitions. [2022-12-13 18:25:31,227 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45710059171597633 [2022-12-13 18:25:31,227 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1236 transitions. [2022-12-13 18:25:31,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1236 transitions. [2022-12-13 18:25:31,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:31,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1236 transitions. [2022-12-13 18:25:31,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 154.5) internal successors, (1236), 8 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:31,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:31,230 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:31,230 INFO L175 Difference]: Start difference. First operand has 63 places, 39 transitions, 361 flow. Second operand 8 states and 1236 transitions. [2022-12-13 18:25:31,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 43 transitions, 441 flow [2022-12-13 18:25:31,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 43 transitions, 399 flow, removed 3 selfloop flow, removed 8 redundant places. [2022-12-13 18:25:31,231 INFO L231 Difference]: Finished difference. Result has 62 places, 37 transitions, 336 flow [2022-12-13 18:25:31,231 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=336, PETRI_PLACES=62, PETRI_TRANSITIONS=37} [2022-12-13 18:25:31,232 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 33 predicate places. [2022-12-13 18:25:31,232 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 37 transitions, 336 flow [2022-12-13 18:25:31,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 152.28571428571428) internal successors, (1066), 7 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:31,232 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:31,232 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:31,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 18:25:31,232 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:31,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:31,232 INFO L85 PathProgramCache]: Analyzing trace with hash -293856545, now seen corresponding path program 1 times [2022-12-13 18:25:31,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:31,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595405217] [2022-12-13 18:25:31,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:31,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:31,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:31,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:31,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595405217] [2022-12-13 18:25:31,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595405217] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:31,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:31,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 18:25:31,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610645614] [2022-12-13 18:25:31,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:31,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 18:25:31,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:31,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 18:25:31,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:25:32,282 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 338 [2022-12-13 18:25:32,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 37 transitions, 336 flow. Second operand has 10 states, 10 states have (on average 137.2) internal successors, (1372), 10 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:32,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:32,283 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 338 [2022-12-13 18:25:32,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:32,773 INFO L130 PetriNetUnfolder]: 47/164 cut-off events. [2022-12-13 18:25:32,773 INFO L131 PetriNetUnfolder]: For 672/672 co-relation queries the response was YES. [2022-12-13 18:25:32,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 164 events. 47/164 cut-off events. For 672/672 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 744 event pairs, 14 based on Foata normal form. 6/170 useless extension candidates. Maximal degree in co-relation 635. Up to 58 conditions per place. [2022-12-13 18:25:32,774 INFO L137 encePairwiseOnDemand]: 329/338 looper letters, 41 selfloop transitions, 43 changer transitions 0/84 dead transitions. [2022-12-13 18:25:32,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 84 transitions, 886 flow [2022-12-13 18:25:32,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 18:25:32,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 18:25:32,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2367 transitions. [2022-12-13 18:25:32,776 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41193873999303865 [2022-12-13 18:25:32,776 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2367 transitions. [2022-12-13 18:25:32,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2367 transitions. [2022-12-13 18:25:32,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:32,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2367 transitions. [2022-12-13 18:25:32,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 139.23529411764707) internal successors, (2367), 17 states have internal predecessors, (2367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:32,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 338.0) internal successors, (6084), 18 states have internal predecessors, (6084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:32,782 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 338.0) internal successors, (6084), 18 states have internal predecessors, (6084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:32,782 INFO L175 Difference]: Start difference. First operand has 62 places, 37 transitions, 336 flow. Second operand 17 states and 2367 transitions. [2022-12-13 18:25:32,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 84 transitions, 886 flow [2022-12-13 18:25:32,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 84 transitions, 823 flow, removed 1 selfloop flow, removed 7 redundant places. [2022-12-13 18:25:32,785 INFO L231 Difference]: Finished difference. Result has 78 places, 68 transitions, 710 flow [2022-12-13 18:25:32,785 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=710, PETRI_PLACES=78, PETRI_TRANSITIONS=68} [2022-12-13 18:25:32,785 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 49 predicate places. [2022-12-13 18:25:32,786 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 68 transitions, 710 flow [2022-12-13 18:25:32,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 137.2) internal successors, (1372), 10 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:32,786 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:32,786 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:32,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 18:25:32,786 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:32,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:32,787 INFO L85 PathProgramCache]: Analyzing trace with hash -503700944, now seen corresponding path program 1 times [2022-12-13 18:25:32,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:32,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517087237] [2022-12-13 18:25:32,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:32,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:33,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:33,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:33,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517087237] [2022-12-13 18:25:33,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517087237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:33,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:33,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 18:25:33,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919471736] [2022-12-13 18:25:33,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:33,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 18:25:33,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:33,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 18:25:33,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:25:33,684 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 338 [2022-12-13 18:25:33,685 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 68 transitions, 710 flow. Second operand has 10 states, 10 states have (on average 137.2) internal successors, (1372), 10 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:33,685 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:33,685 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 338 [2022-12-13 18:25:33,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:34,006 INFO L130 PetriNetUnfolder]: 60/242 cut-off events. [2022-12-13 18:25:34,006 INFO L131 PetriNetUnfolder]: For 1123/1123 co-relation queries the response was YES. [2022-12-13 18:25:34,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1247 conditions, 242 events. 60/242 cut-off events. For 1123/1123 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1407 event pairs, 18 based on Foata normal form. 4/246 useless extension candidates. Maximal degree in co-relation 1030. Up to 80 conditions per place. [2022-12-13 18:25:34,007 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 67 selfloop transitions, 47 changer transitions 0/114 dead transitions. [2022-12-13 18:25:34,007 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 114 transitions, 1349 flow [2022-12-13 18:25:34,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 18:25:34,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 18:25:34,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1816 transitions. [2022-12-13 18:25:34,011 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41329085116067366 [2022-12-13 18:25:34,011 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1816 transitions. [2022-12-13 18:25:34,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1816 transitions. [2022-12-13 18:25:34,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:34,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1816 transitions. [2022-12-13 18:25:34,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 139.69230769230768) internal successors, (1816), 13 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:34,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 338.0) internal successors, (4732), 14 states have internal predecessors, (4732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:34,015 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 338.0) internal successors, (4732), 14 states have internal predecessors, (4732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:34,015 INFO L175 Difference]: Start difference. First operand has 78 places, 68 transitions, 710 flow. Second operand 13 states and 1816 transitions. [2022-12-13 18:25:34,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 114 transitions, 1349 flow [2022-12-13 18:25:34,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 114 transitions, 1347 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-12-13 18:25:34,019 INFO L231 Difference]: Finished difference. Result has 93 places, 84 transitions, 1034 flow [2022-12-13 18:25:34,019 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1034, PETRI_PLACES=93, PETRI_TRANSITIONS=84} [2022-12-13 18:25:34,019 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 64 predicate places. [2022-12-13 18:25:34,020 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 84 transitions, 1034 flow [2022-12-13 18:25:34,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 137.2) internal successors, (1372), 10 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:34,020 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:34,020 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:34,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 18:25:34,020 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:34,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:34,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1903287590, now seen corresponding path program 2 times [2022-12-13 18:25:34,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:34,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047428980] [2022-12-13 18:25:34,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:34,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:34,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:34,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:34,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047428980] [2022-12-13 18:25:34,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047428980] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:34,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:34,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:25:34,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921172151] [2022-12-13 18:25:34,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:34,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:25:34,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:34,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:25:34,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:25:34,599 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 338 [2022-12-13 18:25:34,600 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 84 transitions, 1034 flow. Second operand has 8 states, 8 states have (on average 145.5) internal successors, (1164), 8 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:34,600 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:34,600 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 338 [2022-12-13 18:25:34,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:34,806 INFO L130 PetriNetUnfolder]: 63/271 cut-off events. [2022-12-13 18:25:34,807 INFO L131 PetriNetUnfolder]: For 1686/1686 co-relation queries the response was YES. [2022-12-13 18:25:34,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1550 conditions, 271 events. 63/271 cut-off events. For 1686/1686 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1708 event pairs, 18 based on Foata normal form. 4/275 useless extension candidates. Maximal degree in co-relation 1313. Up to 82 conditions per place. [2022-12-13 18:25:34,808 INFO L137 encePairwiseOnDemand]: 331/338 looper letters, 78 selfloop transitions, 35 changer transitions 0/113 dead transitions. [2022-12-13 18:25:34,808 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 113 transitions, 1511 flow [2022-12-13 18:25:34,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 18:25:34,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 18:25:34,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1336 transitions. [2022-12-13 18:25:34,809 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43918474687705455 [2022-12-13 18:25:34,809 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1336 transitions. [2022-12-13 18:25:34,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1336 transitions. [2022-12-13 18:25:34,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:34,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1336 transitions. [2022-12-13 18:25:34,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 148.44444444444446) internal successors, (1336), 9 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:34,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 338.0) internal successors, (3380), 10 states have internal predecessors, (3380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:34,812 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 338.0) internal successors, (3380), 10 states have internal predecessors, (3380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:34,812 INFO L175 Difference]: Start difference. First operand has 93 places, 84 transitions, 1034 flow. Second operand 9 states and 1336 transitions. [2022-12-13 18:25:34,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 113 transitions, 1511 flow [2022-12-13 18:25:34,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 113 transitions, 1469 flow, removed 10 selfloop flow, removed 3 redundant places. [2022-12-13 18:25:34,818 INFO L231 Difference]: Finished difference. Result has 101 places, 93 transitions, 1228 flow [2022-12-13 18:25:34,818 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=999, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1228, PETRI_PLACES=101, PETRI_TRANSITIONS=93} [2022-12-13 18:25:34,819 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 72 predicate places. [2022-12-13 18:25:34,819 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 93 transitions, 1228 flow [2022-12-13 18:25:34,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 145.5) internal successors, (1164), 8 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:34,819 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:34,819 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:34,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 18:25:34,820 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:34,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:34,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1930733749, now seen corresponding path program 2 times [2022-12-13 18:25:34,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:34,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163737660] [2022-12-13 18:25:34,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:34,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:35,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:35,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:35,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163737660] [2022-12-13 18:25:35,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163737660] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:35,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:35,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 18:25:35,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211845482] [2022-12-13 18:25:35,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:35,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 18:25:35,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:35,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 18:25:35,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:25:35,780 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 338 [2022-12-13 18:25:35,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 93 transitions, 1228 flow. Second operand has 10 states, 10 states have (on average 139.2) internal successors, (1392), 10 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:35,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:35,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 338 [2022-12-13 18:25:35,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:36,272 INFO L130 PetriNetUnfolder]: 59/263 cut-off events. [2022-12-13 18:25:36,272 INFO L131 PetriNetUnfolder]: For 2020/2020 co-relation queries the response was YES. [2022-12-13 18:25:36,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1613 conditions, 263 events. 59/263 cut-off events. For 2020/2020 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1655 event pairs, 22 based on Foata normal form. 6/269 useless extension candidates. Maximal degree in co-relation 1400. Up to 101 conditions per place. [2022-12-13 18:25:36,274 INFO L137 encePairwiseOnDemand]: 329/338 looper letters, 48 selfloop transitions, 60 changer transitions 7/115 dead transitions. [2022-12-13 18:25:36,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 115 transitions, 1644 flow [2022-12-13 18:25:36,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 18:25:36,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-13 18:25:36,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2679 transitions. [2022-12-13 18:25:36,278 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4171597633136095 [2022-12-13 18:25:36,278 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2679 transitions. [2022-12-13 18:25:36,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2679 transitions. [2022-12-13 18:25:36,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:36,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2679 transitions. [2022-12-13 18:25:36,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 141.0) internal successors, (2679), 19 states have internal predecessors, (2679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:36,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 338.0) internal successors, (6760), 20 states have internal predecessors, (6760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:36,284 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 338.0) internal successors, (6760), 20 states have internal predecessors, (6760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:36,284 INFO L175 Difference]: Start difference. First operand has 101 places, 93 transitions, 1228 flow. Second operand 19 states and 2679 transitions. [2022-12-13 18:25:36,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 115 transitions, 1644 flow [2022-12-13 18:25:36,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 115 transitions, 1624 flow, removed 6 selfloop flow, removed 2 redundant places. [2022-12-13 18:25:36,290 INFO L231 Difference]: Finished difference. Result has 122 places, 95 transitions, 1386 flow [2022-12-13 18:25:36,290 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=1179, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1386, PETRI_PLACES=122, PETRI_TRANSITIONS=95} [2022-12-13 18:25:36,290 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 93 predicate places. [2022-12-13 18:25:36,290 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 95 transitions, 1386 flow [2022-12-13 18:25:36,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 139.2) internal successors, (1392), 10 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:36,291 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:36,291 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:36,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 18:25:36,291 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:36,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:36,291 INFO L85 PathProgramCache]: Analyzing trace with hash 809738865, now seen corresponding path program 3 times [2022-12-13 18:25:36,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:36,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153879316] [2022-12-13 18:25:36,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:36,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:36,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:36,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:36,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:36,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153879316] [2022-12-13 18:25:36,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153879316] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:36,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:36,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 18:25:36,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332876369] [2022-12-13 18:25:36,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:36,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 18:25:36,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:36,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 18:25:36,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:25:37,166 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 338 [2022-12-13 18:25:37,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 95 transitions, 1386 flow. Second operand has 10 states, 10 states have (on average 139.2) internal successors, (1392), 10 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:37,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:37,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 338 [2022-12-13 18:25:37,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:37,607 INFO L130 PetriNetUnfolder]: 50/238 cut-off events. [2022-12-13 18:25:37,607 INFO L131 PetriNetUnfolder]: For 2177/2177 co-relation queries the response was YES. [2022-12-13 18:25:37,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1570 conditions, 238 events. 50/238 cut-off events. For 2177/2177 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1481 event pairs, 18 based on Foata normal form. 14/252 useless extension candidates. Maximal degree in co-relation 1406. Up to 65 conditions per place. [2022-12-13 18:25:37,609 INFO L137 encePairwiseOnDemand]: 328/338 looper letters, 42 selfloop transitions, 63 changer transitions 0/105 dead transitions. [2022-12-13 18:25:37,609 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 105 transitions, 1614 flow [2022-12-13 18:25:37,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 18:25:37,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 18:25:37,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2257 transitions. [2022-12-13 18:25:37,613 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.417344674556213 [2022-12-13 18:25:37,613 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2257 transitions. [2022-12-13 18:25:37,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2257 transitions. [2022-12-13 18:25:37,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:37,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2257 transitions. [2022-12-13 18:25:37,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 141.0625) internal successors, (2257), 16 states have internal predecessors, (2257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:37,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 338.0) internal successors, (5746), 17 states have internal predecessors, (5746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:37,617 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 338.0) internal successors, (5746), 17 states have internal predecessors, (5746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:37,618 INFO L175 Difference]: Start difference. First operand has 122 places, 95 transitions, 1386 flow. Second operand 16 states and 2257 transitions. [2022-12-13 18:25:37,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 105 transitions, 1614 flow [2022-12-13 18:25:37,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 105 transitions, 1508 flow, removed 20 selfloop flow, removed 8 redundant places. [2022-12-13 18:25:37,624 INFO L231 Difference]: Finished difference. Result has 129 places, 94 transitions, 1424 flow [2022-12-13 18:25:37,624 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=1190, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1424, PETRI_PLACES=129, PETRI_TRANSITIONS=94} [2022-12-13 18:25:37,625 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 100 predicate places. [2022-12-13 18:25:37,625 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 94 transitions, 1424 flow [2022-12-13 18:25:37,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 139.2) internal successors, (1392), 10 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:37,625 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:37,625 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:37,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 18:25:37,625 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:37,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:37,626 INFO L85 PathProgramCache]: Analyzing trace with hash 809738864, now seen corresponding path program 3 times [2022-12-13 18:25:37,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:37,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848598092] [2022-12-13 18:25:37,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:37,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:38,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:38,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:38,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848598092] [2022-12-13 18:25:38,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848598092] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:38,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:38,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 18:25:38,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780319421] [2022-12-13 18:25:38,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:38,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 18:25:38,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:38,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 18:25:38,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:25:38,376 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 338 [2022-12-13 18:25:38,376 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 94 transitions, 1424 flow. Second operand has 10 states, 10 states have (on average 137.2) internal successors, (1372), 10 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:38,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:38,377 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 338 [2022-12-13 18:25:38,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:38,603 INFO L130 PetriNetUnfolder]: 49/239 cut-off events. [2022-12-13 18:25:38,603 INFO L131 PetriNetUnfolder]: For 2117/2117 co-relation queries the response was YES. [2022-12-13 18:25:38,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1636 conditions, 239 events. 49/239 cut-off events. For 2117/2117 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1500 event pairs, 20 based on Foata normal form. 2/241 useless extension candidates. Maximal degree in co-relation 1533. Up to 106 conditions per place. [2022-12-13 18:25:38,604 INFO L137 encePairwiseOnDemand]: 328/338 looper letters, 47 selfloop transitions, 54 changer transitions 5/106 dead transitions. [2022-12-13 18:25:38,604 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 106 transitions, 1695 flow [2022-12-13 18:25:38,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 18:25:38,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 18:25:38,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1399 transitions. [2022-12-13 18:25:38,606 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.413905325443787 [2022-12-13 18:25:38,606 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1399 transitions. [2022-12-13 18:25:38,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1399 transitions. [2022-12-13 18:25:38,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:38,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1399 transitions. [2022-12-13 18:25:38,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 139.9) internal successors, (1399), 10 states have internal predecessors, (1399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:38,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 338.0) internal successors, (3718), 11 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:38,609 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 338.0) internal successors, (3718), 11 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:38,609 INFO L175 Difference]: Start difference. First operand has 129 places, 94 transitions, 1424 flow. Second operand 10 states and 1399 transitions. [2022-12-13 18:25:38,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 106 transitions, 1695 flow [2022-12-13 18:25:38,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 106 transitions, 1587 flow, removed 5 selfloop flow, removed 11 redundant places. [2022-12-13 18:25:38,617 INFO L231 Difference]: Finished difference. Result has 129 places, 92 transitions, 1401 flow [2022-12-13 18:25:38,617 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=1316, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1401, PETRI_PLACES=129, PETRI_TRANSITIONS=92} [2022-12-13 18:25:38,617 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 100 predicate places. [2022-12-13 18:25:38,617 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 92 transitions, 1401 flow [2022-12-13 18:25:38,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 137.2) internal successors, (1372), 10 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:38,617 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:38,617 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:38,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 18:25:38,618 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:38,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:38,618 INFO L85 PathProgramCache]: Analyzing trace with hash 832341584, now seen corresponding path program 4 times [2022-12-13 18:25:38,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:38,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102829864] [2022-12-13 18:25:38,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:38,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:39,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:39,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:39,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102829864] [2022-12-13 18:25:39,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102829864] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:39,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:39,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 18:25:39,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316283001] [2022-12-13 18:25:39,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:39,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 18:25:39,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:39,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 18:25:39,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:25:39,417 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 338 [2022-12-13 18:25:39,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 92 transitions, 1401 flow. Second operand has 10 states, 10 states have (on average 137.2) internal successors, (1372), 10 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:39,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:39,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 338 [2022-12-13 18:25:39,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:39,675 INFO L130 PetriNetUnfolder]: 50/245 cut-off events. [2022-12-13 18:25:39,675 INFO L131 PetriNetUnfolder]: For 2480/2480 co-relation queries the response was YES. [2022-12-13 18:25:39,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1705 conditions, 245 events. 50/245 cut-off events. For 2480/2480 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1545 event pairs, 21 based on Foata normal form. 4/249 useless extension candidates. Maximal degree in co-relation 1599. Up to 94 conditions per place. [2022-12-13 18:25:39,677 INFO L137 encePairwiseOnDemand]: 328/338 looper letters, 55 selfloop transitions, 57 changer transitions 0/112 dead transitions. [2022-12-13 18:25:39,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 112 transitions, 1798 flow [2022-12-13 18:25:39,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 18:25:39,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 18:25:39,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1540 transitions. [2022-12-13 18:25:39,679 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41420118343195267 [2022-12-13 18:25:39,679 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1540 transitions. [2022-12-13 18:25:39,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1540 transitions. [2022-12-13 18:25:39,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:39,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1540 transitions. [2022-12-13 18:25:39,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 140.0) internal successors, (1540), 11 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:39,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 338.0) internal successors, (4056), 12 states have internal predecessors, (4056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:39,682 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 338.0) internal successors, (4056), 12 states have internal predecessors, (4056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:39,682 INFO L175 Difference]: Start difference. First operand has 129 places, 92 transitions, 1401 flow. Second operand 11 states and 1540 transitions. [2022-12-13 18:25:39,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 112 transitions, 1798 flow [2022-12-13 18:25:39,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 112 transitions, 1668 flow, removed 3 selfloop flow, removed 10 redundant places. [2022-12-13 18:25:39,690 INFO L231 Difference]: Finished difference. Result has 133 places, 99 transitions, 1576 flow [2022-12-13 18:25:39,690 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=1283, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1576, PETRI_PLACES=133, PETRI_TRANSITIONS=99} [2022-12-13 18:25:39,690 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 104 predicate places. [2022-12-13 18:25:39,690 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 99 transitions, 1576 flow [2022-12-13 18:25:39,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 137.2) internal successors, (1372), 10 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:39,691 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:39,691 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:39,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 18:25:39,691 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:39,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:39,691 INFO L85 PathProgramCache]: Analyzing trace with hash 832341585, now seen corresponding path program 4 times [2022-12-13 18:25:39,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:39,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001868740] [2022-12-13 18:25:39,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:39,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:40,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:40,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:40,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001868740] [2022-12-13 18:25:40,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001868740] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:40,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:40,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 18:25:40,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400734055] [2022-12-13 18:25:40,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:40,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 18:25:40,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:40,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 18:25:40,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:25:40,523 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 338 [2022-12-13 18:25:40,524 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 99 transitions, 1576 flow. Second operand has 10 states, 10 states have (on average 139.2) internal successors, (1392), 10 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:40,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:40,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 338 [2022-12-13 18:25:40,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:41,128 INFO L130 PetriNetUnfolder]: 45/230 cut-off events. [2022-12-13 18:25:41,128 INFO L131 PetriNetUnfolder]: For 2595/2595 co-relation queries the response was YES. [2022-12-13 18:25:41,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1644 conditions, 230 events. 45/230 cut-off events. For 2595/2595 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1427 event pairs, 8 based on Foata normal form. 10/240 useless extension candidates. Maximal degree in co-relation 1536. Up to 59 conditions per place. [2022-12-13 18:25:41,129 INFO L137 encePairwiseOnDemand]: 328/338 looper letters, 31 selfloop transitions, 60 changer transitions 17/108 dead transitions. [2022-12-13 18:25:41,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 108 transitions, 1777 flow [2022-12-13 18:25:41,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 18:25:41,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-13 18:25:41,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3373 transitions. [2022-12-13 18:25:41,134 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41580374753451677 [2022-12-13 18:25:41,134 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3373 transitions. [2022-12-13 18:25:41,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3373 transitions. [2022-12-13 18:25:41,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:41,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3373 transitions. [2022-12-13 18:25:41,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 140.54166666666666) internal successors, (3373), 24 states have internal predecessors, (3373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:41,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 338.0) internal successors, (8450), 25 states have internal predecessors, (8450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:41,141 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 338.0) internal successors, (8450), 25 states have internal predecessors, (8450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:41,142 INFO L175 Difference]: Start difference. First operand has 133 places, 99 transitions, 1576 flow. Second operand 24 states and 3373 transitions. [2022-12-13 18:25:41,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 108 transitions, 1777 flow [2022-12-13 18:25:41,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 108 transitions, 1707 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-12-13 18:25:41,150 INFO L231 Difference]: Finished difference. Result has 150 places, 80 transitions, 1275 flow [2022-12-13 18:25:41,150 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=1452, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1275, PETRI_PLACES=150, PETRI_TRANSITIONS=80} [2022-12-13 18:25:41,150 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 121 predicate places. [2022-12-13 18:25:41,151 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 80 transitions, 1275 flow [2022-12-13 18:25:41,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 139.2) internal successors, (1392), 10 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:41,151 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:41,151 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:41,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 18:25:41,151 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:41,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:41,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1607839754, now seen corresponding path program 5 times [2022-12-13 18:25:41,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:41,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069291753] [2022-12-13 18:25:41,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:41,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:41,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:41,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:41,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069291753] [2022-12-13 18:25:41,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069291753] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:41,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:41,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:25:41,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340293849] [2022-12-13 18:25:41,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:41,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:25:41,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:41,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:25:41,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:25:41,677 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 338 [2022-12-13 18:25:41,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 80 transitions, 1275 flow. Second operand has 8 states, 8 states have (on average 145.5) internal successors, (1164), 8 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:41,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:41,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 338 [2022-12-13 18:25:41,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:41,865 INFO L130 PetriNetUnfolder]: 33/182 cut-off events. [2022-12-13 18:25:41,865 INFO L131 PetriNetUnfolder]: For 1963/1963 co-relation queries the response was YES. [2022-12-13 18:25:41,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1332 conditions, 182 events. 33/182 cut-off events. For 1963/1963 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1026 event pairs, 11 based on Foata normal form. 6/188 useless extension candidates. Maximal degree in co-relation 1219. Up to 81 conditions per place. [2022-12-13 18:25:41,866 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 59 selfloop transitions, 21 changer transitions 19/99 dead transitions. [2022-12-13 18:25:41,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 99 transitions, 1627 flow [2022-12-13 18:25:41,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 18:25:41,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 18:25:41,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1192 transitions. [2022-12-13 18:25:41,867 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4408284023668639 [2022-12-13 18:25:41,868 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1192 transitions. [2022-12-13 18:25:41,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1192 transitions. [2022-12-13 18:25:41,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:41,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1192 transitions. [2022-12-13 18:25:41,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 149.0) internal successors, (1192), 8 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:41,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:41,870 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:41,870 INFO L175 Difference]: Start difference. First operand has 150 places, 80 transitions, 1275 flow. Second operand 8 states and 1192 transitions. [2022-12-13 18:25:41,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 99 transitions, 1627 flow [2022-12-13 18:25:41,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 99 transitions, 1367 flow, removed 21 selfloop flow, removed 33 redundant places. [2022-12-13 18:25:41,876 INFO L231 Difference]: Finished difference. Result has 125 places, 68 transitions, 908 flow [2022-12-13 18:25:41,876 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=1055, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=908, PETRI_PLACES=125, PETRI_TRANSITIONS=68} [2022-12-13 18:25:41,877 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 96 predicate places. [2022-12-13 18:25:41,877 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 68 transitions, 908 flow [2022-12-13 18:25:41,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 145.5) internal successors, (1164), 8 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:41,877 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:41,877 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:41,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 18:25:41,877 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:41,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:41,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1930733750, now seen corresponding path program 6 times [2022-12-13 18:25:41,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:41,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142123854] [2022-12-13 18:25:41,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:41,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:42,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:42,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:42,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142123854] [2022-12-13 18:25:42,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142123854] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:42,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:42,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:25:42,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127153995] [2022-12-13 18:25:42,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:42,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:25:42,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:42,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:25:42,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:25:42,515 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 338 [2022-12-13 18:25:42,516 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 68 transitions, 908 flow. Second operand has 8 states, 8 states have (on average 145.5) internal successors, (1164), 8 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:42,516 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:42,516 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 338 [2022-12-13 18:25:42,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:42,695 INFO L130 PetriNetUnfolder]: 26/148 cut-off events. [2022-12-13 18:25:42,695 INFO L131 PetriNetUnfolder]: For 1500/1500 co-relation queries the response was YES. [2022-12-13 18:25:42,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 975 conditions, 148 events. 26/148 cut-off events. For 1500/1500 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 769 event pairs, 16 based on Foata normal form. 4/152 useless extension candidates. Maximal degree in co-relation 866. Up to 65 conditions per place. [2022-12-13 18:25:42,696 INFO L137 encePairwiseOnDemand]: 331/338 looper letters, 51 selfloop transitions, 15 changer transitions 12/78 dead transitions. [2022-12-13 18:25:42,697 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 78 transitions, 1120 flow [2022-12-13 18:25:42,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 18:25:42,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 18:25:42,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1187 transitions. [2022-12-13 18:25:42,698 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4389792899408284 [2022-12-13 18:25:42,698 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1187 transitions. [2022-12-13 18:25:42,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1187 transitions. [2022-12-13 18:25:42,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:42,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1187 transitions. [2022-12-13 18:25:42,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 148.375) internal successors, (1187), 8 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:42,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:42,701 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:42,701 INFO L175 Difference]: Start difference. First operand has 125 places, 68 transitions, 908 flow. Second operand 8 states and 1187 transitions. [2022-12-13 18:25:42,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 78 transitions, 1120 flow [2022-12-13 18:25:42,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 78 transitions, 1011 flow, removed 8 selfloop flow, removed 12 redundant places. [2022-12-13 18:25:42,705 INFO L231 Difference]: Finished difference. Result has 120 places, 59 transitions, 722 flow [2022-12-13 18:25:42,705 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=722, PETRI_PLACES=120, PETRI_TRANSITIONS=59} [2022-12-13 18:25:42,705 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 91 predicate places. [2022-12-13 18:25:42,705 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 59 transitions, 722 flow [2022-12-13 18:25:42,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 145.5) internal successors, (1164), 8 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:42,705 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:42,705 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:42,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 18:25:42,705 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:42,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:42,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1784400880, now seen corresponding path program 7 times [2022-12-13 18:25:42,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:42,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382847029] [2022-12-13 18:25:42,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:42,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:42,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:42,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:42,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382847029] [2022-12-13 18:25:42,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382847029] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:42,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:42,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:25:42,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816838222] [2022-12-13 18:25:42,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:42,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:25:42,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:42,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:25:42,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:25:43,174 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 338 [2022-12-13 18:25:43,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 59 transitions, 722 flow. Second operand has 8 states, 8 states have (on average 145.5) internal successors, (1164), 8 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:43,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:43,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 338 [2022-12-13 18:25:43,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:43,338 INFO L130 PetriNetUnfolder]: 18/116 cut-off events. [2022-12-13 18:25:43,338 INFO L131 PetriNetUnfolder]: For 915/915 co-relation queries the response was YES. [2022-12-13 18:25:43,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 750 conditions, 116 events. 18/116 cut-off events. For 915/915 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 560 event pairs, 7 based on Foata normal form. 2/118 useless extension candidates. Maximal degree in co-relation 648. Up to 52 conditions per place. [2022-12-13 18:25:43,338 INFO L137 encePairwiseOnDemand]: 331/338 looper letters, 45 selfloop transitions, 16 changer transitions 7/68 dead transitions. [2022-12-13 18:25:43,338 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 68 transitions, 900 flow [2022-12-13 18:25:43,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 18:25:43,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 18:25:43,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1330 transitions. [2022-12-13 18:25:43,341 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43721236028928334 [2022-12-13 18:25:43,341 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1330 transitions. [2022-12-13 18:25:43,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1330 transitions. [2022-12-13 18:25:43,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:43,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1330 transitions. [2022-12-13 18:25:43,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 147.77777777777777) internal successors, (1330), 9 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:43,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 338.0) internal successors, (3380), 10 states have internal predecessors, (3380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:43,344 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 338.0) internal successors, (3380), 10 states have internal predecessors, (3380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:43,344 INFO L175 Difference]: Start difference. First operand has 120 places, 59 transitions, 722 flow. Second operand 9 states and 1330 transitions. [2022-12-13 18:25:43,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 68 transitions, 900 flow [2022-12-13 18:25:43,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 68 transitions, 837 flow, removed 0 selfloop flow, removed 13 redundant places. [2022-12-13 18:25:43,347 INFO L231 Difference]: Finished difference. Result has 115 places, 55 transitions, 649 flow [2022-12-13 18:25:43,347 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=659, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=649, PETRI_PLACES=115, PETRI_TRANSITIONS=55} [2022-12-13 18:25:43,348 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 86 predicate places. [2022-12-13 18:25:43,348 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 55 transitions, 649 flow [2022-12-13 18:25:43,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 145.5) internal successors, (1164), 8 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:43,348 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:43,348 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:43,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 18:25:43,348 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:43,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:43,348 INFO L85 PathProgramCache]: Analyzing trace with hash -793412002, now seen corresponding path program 8 times [2022-12-13 18:25:43,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:43,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320500990] [2022-12-13 18:25:43,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:43,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:43,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:43,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:43,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320500990] [2022-12-13 18:25:43,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320500990] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:43,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:43,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:25:43,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094231792] [2022-12-13 18:25:43,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:43,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:25:43,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:43,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:25:43,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:25:43,773 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 338 [2022-12-13 18:25:43,774 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 55 transitions, 649 flow. Second operand has 8 states, 8 states have (on average 145.5) internal successors, (1164), 8 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:43,774 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:43,774 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 338 [2022-12-13 18:25:43,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:43,912 INFO L130 PetriNetUnfolder]: 17/110 cut-off events. [2022-12-13 18:25:43,912 INFO L131 PetriNetUnfolder]: For 915/915 co-relation queries the response was YES. [2022-12-13 18:25:43,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 110 events. 17/110 cut-off events. For 915/915 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 533 event pairs, 10 based on Foata normal form. 2/112 useless extension candidates. Maximal degree in co-relation 660. Up to 51 conditions per place. [2022-12-13 18:25:43,913 INFO L137 encePairwiseOnDemand]: 331/338 looper letters, 41 selfloop transitions, 14 changer transitions 7/62 dead transitions. [2022-12-13 18:25:43,913 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 62 transitions, 790 flow [2022-12-13 18:25:43,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 18:25:43,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 18:25:43,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1188 transitions. [2022-12-13 18:25:43,914 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4393491124260355 [2022-12-13 18:25:43,914 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1188 transitions. [2022-12-13 18:25:43,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1188 transitions. [2022-12-13 18:25:43,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:43,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1188 transitions. [2022-12-13 18:25:43,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 148.5) internal successors, (1188), 8 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:43,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:43,917 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:43,917 INFO L175 Difference]: Start difference. First operand has 115 places, 55 transitions, 649 flow. Second operand 8 states and 1188 transitions. [2022-12-13 18:25:43,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 62 transitions, 790 flow [2022-12-13 18:25:43,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 62 transitions, 749 flow, removed 1 selfloop flow, removed 7 redundant places. [2022-12-13 18:25:43,920 INFO L231 Difference]: Finished difference. Result has 113 places, 50 transitions, 583 flow [2022-12-13 18:25:43,920 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=583, PETRI_PLACES=113, PETRI_TRANSITIONS=50} [2022-12-13 18:25:43,920 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 84 predicate places. [2022-12-13 18:25:43,920 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 50 transitions, 583 flow [2022-12-13 18:25:43,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 145.5) internal successors, (1164), 8 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:43,920 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:43,920 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:43,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 18:25:43,920 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:43,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:43,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1097527770, now seen corresponding path program 9 times [2022-12-13 18:25:43,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:43,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21662037] [2022-12-13 18:25:43,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:43,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:43,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:44,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:44,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:44,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21662037] [2022-12-13 18:25:44,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21662037] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:44,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:44,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 18:25:44,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911236150] [2022-12-13 18:25:44,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:44,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 18:25:44,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:44,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 18:25:44,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:25:44,947 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 338 [2022-12-13 18:25:44,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 50 transitions, 583 flow. Second operand has 10 states, 10 states have (on average 137.2) internal successors, (1372), 10 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:44,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:44,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 338 [2022-12-13 18:25:44,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:45,314 INFO L130 PetriNetUnfolder]: 14/97 cut-off events. [2022-12-13 18:25:45,314 INFO L131 PetriNetUnfolder]: For 796/796 co-relation queries the response was YES. [2022-12-13 18:25:45,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 631 conditions, 97 events. 14/97 cut-off events. For 796/796 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 431 event pairs, 9 based on Foata normal form. 4/101 useless extension candidates. Maximal degree in co-relation 576. Up to 28 conditions per place. [2022-12-13 18:25:45,315 INFO L137 encePairwiseOnDemand]: 329/338 looper letters, 30 selfloop transitions, 30 changer transitions 0/60 dead transitions. [2022-12-13 18:25:45,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 60 transitions, 748 flow [2022-12-13 18:25:45,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 18:25:45,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 18:25:45,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1533 transitions. [2022-12-13 18:25:45,317 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41231845077998924 [2022-12-13 18:25:45,317 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1533 transitions. [2022-12-13 18:25:45,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1533 transitions. [2022-12-13 18:25:45,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:45,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1533 transitions. [2022-12-13 18:25:45,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 139.36363636363637) internal successors, (1533), 11 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:45,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 338.0) internal successors, (4056), 12 states have internal predecessors, (4056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:45,320 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 338.0) internal successors, (4056), 12 states have internal predecessors, (4056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:45,320 INFO L175 Difference]: Start difference. First operand has 113 places, 50 transitions, 583 flow. Second operand 11 states and 1533 transitions. [2022-12-13 18:25:45,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 60 transitions, 748 flow [2022-12-13 18:25:45,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 60 transitions, 716 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-12-13 18:25:45,323 INFO L231 Difference]: Finished difference. Result has 116 places, 51 transitions, 629 flow [2022-12-13 18:25:45,323 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=551, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=629, PETRI_PLACES=116, PETRI_TRANSITIONS=51} [2022-12-13 18:25:45,323 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 87 predicate places. [2022-12-13 18:25:45,323 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 51 transitions, 629 flow [2022-12-13 18:25:45,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 137.2) internal successors, (1372), 10 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:45,324 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:45,324 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:45,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-13 18:25:45,324 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:45,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:45,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1097527771, now seen corresponding path program 5 times [2022-12-13 18:25:45,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:45,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51736413] [2022-12-13 18:25:45,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:45,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:45,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:45,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:45,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51736413] [2022-12-13 18:25:45,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51736413] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:45,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:45,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 18:25:45,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224488966] [2022-12-13 18:25:45,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:45,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 18:25:45,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:45,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 18:25:45,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:25:46,125 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 338 [2022-12-13 18:25:46,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 51 transitions, 629 flow. Second operand has 10 states, 10 states have (on average 139.2) internal successors, (1392), 10 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:46,126 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:46,126 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 338 [2022-12-13 18:25:46,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:46,725 INFO L130 PetriNetUnfolder]: 12/91 cut-off events. [2022-12-13 18:25:46,725 INFO L131 PetriNetUnfolder]: For 729/729 co-relation queries the response was YES. [2022-12-13 18:25:46,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 593 conditions, 91 events. 12/91 cut-off events. For 729/729 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 401 event pairs, 2 based on Foata normal form. 4/95 useless extension candidates. Maximal degree in co-relation 500. Up to 25 conditions per place. [2022-12-13 18:25:46,726 INFO L137 encePairwiseOnDemand]: 329/338 looper letters, 15 selfloop transitions, 35 changer transitions 5/55 dead transitions. [2022-12-13 18:25:46,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 55 transitions, 735 flow [2022-12-13 18:25:46,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 18:25:46,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-13 18:25:46,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2662 transitions. [2022-12-13 18:25:46,728 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4145126128931797 [2022-12-13 18:25:46,728 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2662 transitions. [2022-12-13 18:25:46,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2662 transitions. [2022-12-13 18:25:46,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:46,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2662 transitions. [2022-12-13 18:25:46,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 140.10526315789474) internal successors, (2662), 19 states have internal predecessors, (2662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:46,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 338.0) internal successors, (6760), 20 states have internal predecessors, (6760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:46,734 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 338.0) internal successors, (6760), 20 states have internal predecessors, (6760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:46,734 INFO L175 Difference]: Start difference. First operand has 116 places, 51 transitions, 629 flow. Second operand 19 states and 2662 transitions. [2022-12-13 18:25:46,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 55 transitions, 735 flow [2022-12-13 18:25:46,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 55 transitions, 674 flow, removed 4 selfloop flow, removed 8 redundant places. [2022-12-13 18:25:46,737 INFO L231 Difference]: Finished difference. Result has 123 places, 45 transitions, 562 flow [2022-12-13 18:25:46,737 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=562, PETRI_PLACES=123, PETRI_TRANSITIONS=45} [2022-12-13 18:25:46,737 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 94 predicate places. [2022-12-13 18:25:46,737 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 45 transitions, 562 flow [2022-12-13 18:25:46,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 139.2) internal successors, (1392), 10 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:46,737 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:46,738 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:46,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-13 18:25:46,738 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:46,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:46,738 INFO L85 PathProgramCache]: Analyzing trace with hash -293856546, now seen corresponding path program 10 times [2022-12-13 18:25:46,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:46,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916189642] [2022-12-13 18:25:46,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:46,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:47,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:47,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:47,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916189642] [2022-12-13 18:25:47,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916189642] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:47,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:47,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:25:47,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005349603] [2022-12-13 18:25:47,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:47,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:25:47,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:47,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:25:47,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:25:47,230 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 338 [2022-12-13 18:25:47,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 45 transitions, 562 flow. Second operand has 8 states, 8 states have (on average 141.5) internal successors, (1132), 8 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:47,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:47,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 338 [2022-12-13 18:25:47,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:47,381 INFO L130 PetriNetUnfolder]: 8/73 cut-off events. [2022-12-13 18:25:47,382 INFO L131 PetriNetUnfolder]: For 581/581 co-relation queries the response was YES. [2022-12-13 18:25:47,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505 conditions, 73 events. 8/73 cut-off events. For 581/581 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 289 event pairs, 5 based on Foata normal form. 4/77 useless extension candidates. Maximal degree in co-relation 461. Up to 33 conditions per place. [2022-12-13 18:25:47,383 INFO L137 encePairwiseOnDemand]: 331/338 looper letters, 30 selfloop transitions, 9 changer transitions 10/49 dead transitions. [2022-12-13 18:25:47,383 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 49 transitions, 661 flow [2022-12-13 18:25:47,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 18:25:47,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 18:25:47,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1149 transitions. [2022-12-13 18:25:47,384 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4249260355029586 [2022-12-13 18:25:47,384 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1149 transitions. [2022-12-13 18:25:47,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1149 transitions. [2022-12-13 18:25:47,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:47,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1149 transitions. [2022-12-13 18:25:47,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 143.625) internal successors, (1149), 8 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:47,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:47,386 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:47,386 INFO L175 Difference]: Start difference. First operand has 123 places, 45 transitions, 562 flow. Second operand 8 states and 1149 transitions. [2022-12-13 18:25:47,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 49 transitions, 661 flow [2022-12-13 18:25:47,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 49 transitions, 538 flow, removed 3 selfloop flow, removed 24 redundant places. [2022-12-13 18:25:47,388 INFO L231 Difference]: Finished difference. Result has 104 places, 36 transitions, 369 flow [2022-12-13 18:25:47,389 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=369, PETRI_PLACES=104, PETRI_TRANSITIONS=36} [2022-12-13 18:25:47,389 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 75 predicate places. [2022-12-13 18:25:47,389 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 36 transitions, 369 flow [2022-12-13 18:25:47,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 141.5) internal successors, (1132), 8 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:47,389 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:47,389 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:47,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-13 18:25:47,389 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:47,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:47,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1074925050, now seen corresponding path program 11 times [2022-12-13 18:25:47,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:47,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033776112] [2022-12-13 18:25:47,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:47,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:47,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:47,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:47,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033776112] [2022-12-13 18:25:47,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033776112] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:47,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:47,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 18:25:47,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784732407] [2022-12-13 18:25:47,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:47,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 18:25:47,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:47,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 18:25:47,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:25:48,232 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 338 [2022-12-13 18:25:48,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 36 transitions, 369 flow. Second operand has 10 states, 10 states have (on average 137.2) internal successors, (1372), 10 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:48,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:48,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 338 [2022-12-13 18:25:48,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:48,465 INFO L130 PetriNetUnfolder]: 5/55 cut-off events. [2022-12-13 18:25:48,466 INFO L131 PetriNetUnfolder]: For 300/300 co-relation queries the response was YES. [2022-12-13 18:25:48,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 55 events. 5/55 cut-off events. For 300/300 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 165 event pairs, 5 based on Foata normal form. 2/57 useless extension candidates. Maximal degree in co-relation 245. Up to 20 conditions per place. [2022-12-13 18:25:48,466 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 19 selfloop transitions, 19 changer transitions 0/38 dead transitions. [2022-12-13 18:25:48,466 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 38 transitions, 436 flow [2022-12-13 18:25:48,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 18:25:48,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 18:25:48,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1249 transitions. [2022-12-13 18:25:48,467 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41058514135437213 [2022-12-13 18:25:48,467 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1249 transitions. [2022-12-13 18:25:48,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1249 transitions. [2022-12-13 18:25:48,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:48,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1249 transitions. [2022-12-13 18:25:48,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 138.77777777777777) internal successors, (1249), 9 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:48,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 338.0) internal successors, (3380), 10 states have internal predecessors, (3380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:48,470 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 338.0) internal successors, (3380), 10 states have internal predecessors, (3380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:48,470 INFO L175 Difference]: Start difference. First operand has 104 places, 36 transitions, 369 flow. Second operand 9 states and 1249 transitions. [2022-12-13 18:25:48,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 38 transitions, 436 flow [2022-12-13 18:25:48,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 38 transitions, 337 flow, removed 3 selfloop flow, removed 17 redundant places. [2022-12-13 18:25:48,471 INFO L231 Difference]: Finished difference. Result has 83 places, 35 transitions, 291 flow [2022-12-13 18:25:48,471 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=291, PETRI_PLACES=83, PETRI_TRANSITIONS=35} [2022-12-13 18:25:48,472 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 54 predicate places. [2022-12-13 18:25:48,472 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 35 transitions, 291 flow [2022-12-13 18:25:48,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 137.2) internal successors, (1372), 10 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:48,472 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:48,472 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:48,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-13 18:25:48,472 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:48,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:48,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1074925051, now seen corresponding path program 6 times [2022-12-13 18:25:48,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:48,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008410220] [2022-12-13 18:25:48,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:48,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:48,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:48,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:48,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008410220] [2022-12-13 18:25:48,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008410220] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:48,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:48,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 18:25:48,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357119421] [2022-12-13 18:25:48,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:48,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 18:25:48,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:48,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 18:25:48,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:25:49,214 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 338 [2022-12-13 18:25:49,215 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 35 transitions, 291 flow. Second operand has 10 states, 10 states have (on average 137.2) internal successors, (1372), 10 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:49,215 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:49,215 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 338 [2022-12-13 18:25:49,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:49,602 INFO L130 PetriNetUnfolder]: 4/52 cut-off events. [2022-12-13 18:25:49,602 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2022-12-13 18:25:49,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 52 events. 4/52 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 160 event pairs, 4 based on Foata normal form. 2/54 useless extension candidates. Maximal degree in co-relation 202. Up to 32 conditions per place. [2022-12-13 18:25:49,602 INFO L137 encePairwiseOnDemand]: 331/338 looper letters, 12 selfloop transitions, 15 changer transitions 8/35 dead transitions. [2022-12-13 18:25:49,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 35 transitions, 347 flow [2022-12-13 18:25:49,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 18:25:49,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 18:25:49,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1930 transitions. [2022-12-13 18:25:49,604 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4078613693998309 [2022-12-13 18:25:49,604 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1930 transitions. [2022-12-13 18:25:49,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1930 transitions. [2022-12-13 18:25:49,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:49,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1930 transitions. [2022-12-13 18:25:49,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 137.85714285714286) internal successors, (1930), 14 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:49,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 338.0) internal successors, (5070), 15 states have internal predecessors, (5070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:49,608 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 338.0) internal successors, (5070), 15 states have internal predecessors, (5070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:49,608 INFO L175 Difference]: Start difference. First operand has 83 places, 35 transitions, 291 flow. Second operand 14 states and 1930 transitions. [2022-12-13 18:25:49,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 35 transitions, 347 flow [2022-12-13 18:25:49,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 35 transitions, 312 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-12-13 18:25:49,609 INFO L231 Difference]: Finished difference. Result has 77 places, 27 transitions, 232 flow [2022-12-13 18:25:49,609 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=232, PETRI_PLACES=77, PETRI_TRANSITIONS=27} [2022-12-13 18:25:49,609 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 48 predicate places. [2022-12-13 18:25:49,609 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 27 transitions, 232 flow [2022-12-13 18:25:49,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 137.2) internal successors, (1372), 10 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:49,610 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:49,610 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:49,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-13 18:25:49,610 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:49,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:49,610 INFO L85 PathProgramCache]: Analyzing trace with hash 708430680, now seen corresponding path program 12 times [2022-12-13 18:25:49,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:49,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540272384] [2022-12-13 18:25:49,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:49,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:49,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:49,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:49,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540272384] [2022-12-13 18:25:49,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540272384] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:49,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:49,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:25:49,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200582036] [2022-12-13 18:25:49,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:49,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:25:49,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:49,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:25:49,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:25:50,070 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 338 [2022-12-13 18:25:50,071 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 27 transitions, 232 flow. Second operand has 8 states, 8 states have (on average 145.5) internal successors, (1164), 8 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:50,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:50,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 338 [2022-12-13 18:25:50,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:50,181 INFO L130 PetriNetUnfolder]: 3/39 cut-off events. [2022-12-13 18:25:50,181 INFO L131 PetriNetUnfolder]: For 67/67 co-relation queries the response was YES. [2022-12-13 18:25:50,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 39 events. 3/39 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 93 event pairs, 3 based on Foata normal form. 2/40 useless extension candidates. Maximal degree in co-relation 191. Up to 22 conditions per place. [2022-12-13 18:25:50,181 INFO L137 encePairwiseOnDemand]: 331/338 looper letters, 14 selfloop transitions, 10 changer transitions 5/29 dead transitions. [2022-12-13 18:25:50,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 29 transitions, 295 flow [2022-12-13 18:25:50,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:25:50,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 18:25:50,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1027 transitions. [2022-12-13 18:25:50,183 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4340659340659341 [2022-12-13 18:25:50,183 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1027 transitions. [2022-12-13 18:25:50,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1027 transitions. [2022-12-13 18:25:50,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:50,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1027 transitions. [2022-12-13 18:25:50,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 146.71428571428572) internal successors, (1027), 7 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:50,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:50,187 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:50,187 INFO L175 Difference]: Start difference. First operand has 77 places, 27 transitions, 232 flow. Second operand 7 states and 1027 transitions. [2022-12-13 18:25:50,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 29 transitions, 295 flow [2022-12-13 18:25:50,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 29 transitions, 238 flow, removed 0 selfloop flow, removed 15 redundant places. [2022-12-13 18:25:50,189 INFO L231 Difference]: Finished difference. Result has 57 places, 24 transitions, 172 flow [2022-12-13 18:25:50,189 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=172, PETRI_PLACES=57, PETRI_TRANSITIONS=24} [2022-12-13 18:25:50,189 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 28 predicate places. [2022-12-13 18:25:50,189 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 24 transitions, 172 flow [2022-12-13 18:25:50,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 145.5) internal successors, (1164), 8 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:50,189 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:50,189 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:50,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-13 18:25:50,190 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:50,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:50,190 INFO L85 PathProgramCache]: Analyzing trace with hash 758479560, now seen corresponding path program 13 times [2022-12-13 18:25:50,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:50,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418874261] [2022-12-13 18:25:50,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:50,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:50,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:50,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:50,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418874261] [2022-12-13 18:25:50,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418874261] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:50,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:50,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:25:50,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665442312] [2022-12-13 18:25:50,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:50,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:25:50,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:50,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:25:50,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:25:50,696 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 338 [2022-12-13 18:25:50,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 24 transitions, 172 flow. Second operand has 8 states, 8 states have (on average 145.5) internal successors, (1164), 8 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:50,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:50,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 338 [2022-12-13 18:25:50,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:50,817 INFO L130 PetriNetUnfolder]: 1/28 cut-off events. [2022-12-13 18:25:50,818 INFO L131 PetriNetUnfolder]: For 58/58 co-relation queries the response was YES. [2022-12-13 18:25:50,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 28 events. 1/28 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 1 based on Foata normal form. 4/31 useless extension candidates. Maximal degree in co-relation 129. Up to 9 conditions per place. [2022-12-13 18:25:50,818 INFO L137 encePairwiseOnDemand]: 331/338 looper letters, 8 selfloop transitions, 5 changer transitions 11/24 dead transitions. [2022-12-13 18:25:50,818 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 24 transitions, 206 flow [2022-12-13 18:25:50,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 18:25:50,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 18:25:50,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1172 transitions. [2022-12-13 18:25:50,820 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4334319526627219 [2022-12-13 18:25:50,820 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1172 transitions. [2022-12-13 18:25:50,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1172 transitions. [2022-12-13 18:25:50,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:50,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1172 transitions. [2022-12-13 18:25:50,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 146.5) internal successors, (1172), 8 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:50,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:50,822 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:50,822 INFO L175 Difference]: Start difference. First operand has 57 places, 24 transitions, 172 flow. Second operand 8 states and 1172 transitions. [2022-12-13 18:25:50,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 24 transitions, 206 flow [2022-12-13 18:25:50,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 24 transitions, 151 flow, removed 0 selfloop flow, removed 13 redundant places. [2022-12-13 18:25:50,823 INFO L231 Difference]: Finished difference. Result has 45 places, 13 transitions, 64 flow [2022-12-13 18:25:50,823 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=64, PETRI_PLACES=45, PETRI_TRANSITIONS=13} [2022-12-13 18:25:50,823 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 16 predicate places. [2022-12-13 18:25:50,823 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 13 transitions, 64 flow [2022-12-13 18:25:50,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 145.5) internal successors, (1164), 8 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:50,824 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:25:50,824 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:25:50,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-13 18:25:50,824 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 18:25:50,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:25:50,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1544655606, now seen corresponding path program 14 times [2022-12-13 18:25:50,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:25:50,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892424562] [2022-12-13 18:25:50,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:25:50,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:25:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:25:51,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:25:51,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:25:51,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892424562] [2022-12-13 18:25:51,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892424562] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:25:51,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:25:51,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:25:51,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396950201] [2022-12-13 18:25:51,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:25:51,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:25:51,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:25:51,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:25:51,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:25:51,324 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 338 [2022-12-13 18:25:51,324 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 13 transitions, 64 flow. Second operand has 8 states, 8 states have (on average 145.5) internal successors, (1164), 8 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:51,324 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:25:51,324 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 338 [2022-12-13 18:25:51,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:25:51,427 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2022-12-13 18:25:51,428 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-13 18:25:51,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 12 events. 0/12 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 2/14 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-12-13 18:25:51,428 INFO L137 encePairwiseOnDemand]: 332/338 looper letters, 0 selfloop transitions, 0 changer transitions 12/12 dead transitions. [2022-12-13 18:25:51,428 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 12 transitions, 80 flow [2022-12-13 18:25:51,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:25:51,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 18:25:51,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1021 transitions. [2022-12-13 18:25:51,429 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43153000845308537 [2022-12-13 18:25:51,429 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1021 transitions. [2022-12-13 18:25:51,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1021 transitions. [2022-12-13 18:25:51,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:25:51,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1021 transitions. [2022-12-13 18:25:51,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 145.85714285714286) internal successors, (1021), 7 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:51,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:51,431 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:51,431 INFO L175 Difference]: Start difference. First operand has 45 places, 13 transitions, 64 flow. Second operand 7 states and 1021 transitions. [2022-12-13 18:25:51,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 12 transitions, 80 flow [2022-12-13 18:25:51,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 12 transitions, 56 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-12-13 18:25:51,432 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2022-12-13 18:25:51,432 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2022-12-13 18:25:51,432 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, -1 predicate places. [2022-12-13 18:25:51,432 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2022-12-13 18:25:51,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 145.5) internal successors, (1164), 8 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:25:51,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2022-12-13 18:25:51,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2022-12-13 18:25:51,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-12-13 18:25:51,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-12-13 18:25:51,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-12-13 18:25:51,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-12-13 18:25:51,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-12-13 18:25:51,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-12-13 18:25:51,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-13 18:25:51,435 INFO L445 BasicCegarLoop]: Path program histogram: [14, 6, 4, 4, 2, 2, 2, 1, 1, 1, 1] [2022-12-13 18:25:51,439 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 18:25:51,439 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:25:51,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:25:51 BasicIcfg [2022-12-13 18:25:51,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:25:51,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:25:51,442 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:25:51,442 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:25:51,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:25:11" (3/4) ... [2022-12-13 18:25:51,444 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 18:25:51,447 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2022-12-13 18:25:51,450 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-12-13 18:25:51,451 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 18:25:51,451 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 18:25:51,451 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 18:25:51,474 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d47549a3-4b77-4fec-96fb-77d79ac84637/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 18:25:51,475 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:25:51,475 INFO L158 Benchmark]: Toolchain (without parser) took 41744.55ms. Allocated memory was 134.2MB in the beginning and 343.9MB in the end (delta: 209.7MB). Free memory was 93.3MB in the beginning and 206.5MB in the end (delta: -113.2MB). Peak memory consumption was 97.8MB. Max. memory is 16.1GB. [2022-12-13 18:25:51,475 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 134.2MB. Free memory was 106.6MB in the beginning and 106.5MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:25:51,475 INFO L158 Benchmark]: CACSL2BoogieTranslator took 745.67ms. Allocated memory was 134.2MB in the beginning and 163.6MB in the end (delta: 29.4MB). Free memory was 93.3MB in the beginning and 123.1MB in the end (delta: -29.8MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. [2022-12-13 18:25:51,476 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.96ms. Allocated memory is still 163.6MB. Free memory was 123.1MB in the beginning and 120.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:25:51,476 INFO L158 Benchmark]: Boogie Preprocessor took 27.22ms. Allocated memory is still 163.6MB. Free memory was 119.2MB in the beginning and 117.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:25:51,476 INFO L158 Benchmark]: RCFGBuilder took 503.31ms. Allocated memory is still 163.6MB. Free memory was 117.2MB in the beginning and 92.0MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 18:25:51,476 INFO L158 Benchmark]: TraceAbstraction took 40378.61ms. Allocated memory was 163.6MB in the beginning and 343.9MB in the end (delta: 180.4MB). Free memory was 91.7MB in the beginning and 210.7MB in the end (delta: -119.0MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. [2022-12-13 18:25:51,476 INFO L158 Benchmark]: Witness Printer took 33.21ms. Allocated memory is still 343.9MB. Free memory was 209.6MB in the beginning and 206.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:25:51,478 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 134.2MB. Free memory was 106.6MB in the beginning and 106.5MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 745.67ms. Allocated memory was 134.2MB in the beginning and 163.6MB in the end (delta: 29.4MB). Free memory was 93.3MB in the beginning and 123.1MB in the end (delta: -29.8MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.96ms. Allocated memory is still 163.6MB. Free memory was 123.1MB in the beginning and 120.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.22ms. Allocated memory is still 163.6MB. Free memory was 119.2MB in the beginning and 117.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 503.31ms. Allocated memory is still 163.6MB. Free memory was 117.2MB in the beginning and 92.0MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 40378.61ms. Allocated memory was 163.6MB in the beginning and 343.9MB in the end (delta: 180.4MB). Free memory was 91.7MB in the beginning and 210.7MB in the end (delta: -119.0MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. * Witness Printer took 33.21ms. Allocated memory is still 343.9MB. Free memory was 209.6MB in the beginning and 206.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.0s, 153 PlacesBefore, 29 PlacesAfterwards, 150 TransitionsBefore, 22 TransitionsAfterwards, 2596 CoEnabledTransitionPairs, 8 FixpointIterations, 63 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 11 ConcurrentYvCompositions, 4 ChoiceCompositions, 154 TotalNumberOfCompositions, 6229 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2300, independent: 2070, independent conditional: 0, independent unconditional: 2070, dependent: 230, dependent conditional: 0, dependent unconditional: 230, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1500, independent: 1458, independent conditional: 0, independent unconditional: 1458, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2300, independent: 612, independent conditional: 0, independent unconditional: 612, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 1500, unknown conditional: 0, unknown unconditional: 1500] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 190 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 40.3s, OverallIterations: 38, TraceHistogramMax: 1, PathProgramHistogramMax: 14, EmptinessCheckTime: 0.0s, AutomataDifference: 18.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8024 SdHoareTripleChecker+Valid, 13.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6092 mSDsluCounter, 3940 SdHoareTripleChecker+Invalid, 11.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3596 mSDsCounter, 992 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22354 IncrementalHoareTripleChecker+Invalid, 23346 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 992 mSolverCounterUnsat, 344 mSDtfsCounter, 22354 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 458 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 456 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 854 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1576occurred in iteration=25, InterpolantAutomatonStates: 373, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 13.3s InterpolantComputationTime, 382 NumberOfCodeBlocks, 382 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 344 ConstructedInterpolants, 0 QuantifiedInterpolants, 5113 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 38 InterpolantComputations, 38 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 18:25:51,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d47549a3-4b77-4fec-96fb-77d79ac84637/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE