./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5c77bb-7575-42b4-9207-c7bed45dbf65/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5c77bb-7575-42b4-9207-c7bed45dbf65/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_ac5c77bb-7575-42b4-9207-c7bed45dbf65/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5c77bb-7575-42b4-9207-c7bed45dbf65/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5c77bb-7575-42b4-9207-c7bed45dbf65/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_ac5c77bb-7575-42b4-9207-c7bed45dbf65/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 da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da --- 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 20:28:44,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:28:44,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:28:44,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:28:44,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:28:44,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:28:44,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:28:44,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:28:44,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:28:44,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:28:44,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:28:44,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:28:44,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:28:44,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:28:44,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:28:44,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:28:44,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:28:44,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:28:44,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:28:44,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:28:44,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:28:44,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:28:44,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:28:44,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:28:44,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:28:44,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:28:44,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:28:44,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:28:44,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:28:44,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:28:44,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:28:44,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:28:44,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:28:44,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:28:44,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:28:44,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:28:44,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:28:44,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:28:44,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:28:44,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:28:44,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:28:44,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5c77bb-7575-42b4-9207-c7bed45dbf65/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 20:28:44,217 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:28:44,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:28:44,217 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:28:44,217 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:28:44,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:28:44,223 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:28:44,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:28:44,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:28:44,224 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:28:44,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:28:44,224 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:28:44,224 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:28:44,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:28:44,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:28:44,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:28:44,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:28:44,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:28:44,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:28:44,225 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:28:44,225 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:28:44,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:28:44,225 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:28:44,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:28:44,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:28:44,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:28:44,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:28:44,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:28:44,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:28:44,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:28:44,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:28:44,226 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:28:44,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:28:44,227 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:28:44,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:28:44,227 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:28:44,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:28:44,227 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:28:44,227 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_ac5c77bb-7575-42b4-9207-c7bed45dbf65/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5c77bb-7575-42b4-9207-c7bed45dbf65/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da [2022-12-13 20:28:44,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:28:44,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:28:44,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:28:44,405 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:28:44,406 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:28:44,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5c77bb-7575-42b4-9207-c7bed45dbf65/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-12-13 20:28:46,995 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:28:47,186 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:28:47,187 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5c77bb-7575-42b4-9207-c7bed45dbf65/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-12-13 20:28:47,198 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5c77bb-7575-42b4-9207-c7bed45dbf65/bin/uautomizer-uyxdKDjOR8/data/14f85f4c1/f9039666ba524f3c91ea8e0180f4705c/FLAG0a4ac98bf [2022-12-13 20:28:47,208 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5c77bb-7575-42b4-9207-c7bed45dbf65/bin/uautomizer-uyxdKDjOR8/data/14f85f4c1/f9039666ba524f3c91ea8e0180f4705c [2022-12-13 20:28:47,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:28:47,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:28:47,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:28:47,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:28:47,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:28:47,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:28:47" (1/1) ... [2022-12-13 20:28:47,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@403023a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:47, skipping insertion in model container [2022-12-13 20:28:47,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:28:47" (1/1) ... [2022-12-13 20:28:47,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:28:47,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:28:47,348 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:28:47,718 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_ac5c77bb-7575-42b4-9207-c7bed45dbf65/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-12-13 20:28:47,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:28:47,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:28:47,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:28:47,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:28:47,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:28:47,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:28:47,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:28:47,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:28:47,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:28:47,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:28:47,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:28:47,743 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:28:47,743 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:28:47,743 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:28:47,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:28:47,762 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:28:47,774 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:28:47,803 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_ac5c77bb-7575-42b4-9207-c7bed45dbf65/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-12-13 20:28:47,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:28:47,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:28:47,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:28:47,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:28:47,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:28:47,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:28:47,814 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:28:47,815 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:28:47,815 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:28:47,815 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:28:47,816 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:28:47,816 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:28:47,817 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 20:28:47,817 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 20:28:47,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:28:47,929 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:28:47,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:47 WrapperNode [2022-12-13 20:28:47,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:28:47,930 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:28:47,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:28:47,931 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:28:47,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:47" (1/1) ... [2022-12-13 20:28:47,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:47" (1/1) ... [2022-12-13 20:28:47,972 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-12-13 20:28:47,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:28:47,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:28:47,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:28:47,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:28:47,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:47" (1/1) ... [2022-12-13 20:28:47,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:47" (1/1) ... [2022-12-13 20:28:47,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:47" (1/1) ... [2022-12-13 20:28:47,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:47" (1/1) ... [2022-12-13 20:28:47,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:47" (1/1) ... [2022-12-13 20:28:47,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:47" (1/1) ... [2022-12-13 20:28:48,000 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:47" (1/1) ... [2022-12-13 20:28:48,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:47" (1/1) ... [2022-12-13 20:28:48,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:28:48,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:28:48,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:28:48,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:28:48,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:47" (1/1) ... [2022-12-13 20:28:48,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:28:48,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5c77bb-7575-42b4-9207-c7bed45dbf65/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:28:48,032 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5c77bb-7575-42b4-9207-c7bed45dbf65/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:28:48,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5c77bb-7575-42b4-9207-c7bed45dbf65/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:28:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 20:28:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:28:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 20:28:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 20:28:48,061 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 20:28:48,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:28:48,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 20:28:48,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:28:48,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:28:48,062 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-12-13 20:28:48,062 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-12-13 20:28:48,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:28:48,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:28:48,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:28:48,064 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 20:28:48,276 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:28:48,277 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:28:48,459 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:28:48,488 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:28:48,488 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:28:48,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:28:48 BoogieIcfgContainer [2022-12-13 20:28:48,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:28:48,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:28:48,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:28:48,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:28:48,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:28:47" (1/3) ... [2022-12-13 20:28:48,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd5a2df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:28:48, skipping insertion in model container [2022-12-13 20:28:48,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:47" (2/3) ... [2022-12-13 20:28:48,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd5a2df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:28:48, skipping insertion in model container [2022-12-13 20:28:48,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:28:48" (3/3) ... [2022-12-13 20:28:48,496 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2022-12-13 20:28:48,508 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 20:28:48,517 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:28:48,518 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 20:28:48,518 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 20:28:48,572 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 20:28:48,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 173 transitions, 362 flow [2022-12-13 20:28:48,678 INFO L130 PetriNetUnfolder]: 8/220 cut-off events. [2022-12-13 20:28:48,678 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 20:28:48,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 220 events. 8/220 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 398 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 120. Up to 4 conditions per place. [2022-12-13 20:28:48,683 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 173 transitions, 362 flow [2022-12-13 20:28:48,688 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 139 transitions, 287 flow [2022-12-13 20:28:48,690 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 20:28:48,698 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 139 transitions, 287 flow [2022-12-13 20:28:48,700 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 139 transitions, 287 flow [2022-12-13 20:28:48,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 139 transitions, 287 flow [2022-12-13 20:28:48,730 INFO L130 PetriNetUnfolder]: 2/139 cut-off events. [2022-12-13 20:28:48,730 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 20:28:48,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 139 events. 2/139 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 149 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2022-12-13 20:28:48,734 INFO L119 LiptonReduction]: Number of co-enabled transitions 3900 [2022-12-13 20:28:53,847 INFO L134 LiptonReduction]: Checked pairs total: 10376 [2022-12-13 20:28:53,847 INFO L136 LiptonReduction]: Total number of compositions: 124 [2022-12-13 20:28:53,857 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:28:53,862 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;@8e174b4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:28:53,862 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 20:28:53,868 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-13 20:28:53,868 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:28:53,868 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:28:53,869 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 20:28:53,869 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:28:53,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:28:53,873 INFO L85 PathProgramCache]: Analyzing trace with hash 572556641, now seen corresponding path program 1 times [2022-12-13 20:28:53,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:28:53,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731127955] [2022-12-13 20:28:53,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:28:53,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:28:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:28:54,518 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 20:28:54,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:28:54,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731127955] [2022-12-13 20:28:54,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731127955] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:28:54,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:28:54,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:28:54,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676823923] [2022-12-13 20:28:54,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:28:54,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:28:54,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:28:54,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:28:54,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:28:54,657 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 297 [2022-12-13 20:28:54,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 73 flow. Second operand has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 0 states have call successors, (0), 0 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 20:28:54,661 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:28:54,661 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 297 [2022-12-13 20:28:54,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:28:54,863 INFO L130 PetriNetUnfolder]: 523/930 cut-off events. [2022-12-13 20:28:54,863 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-12-13 20:28:54,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1834 conditions, 930 events. 523/930 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4240 event pairs, 398 based on Foata normal form. 0/763 useless extension candidates. Maximal degree in co-relation 1748. Up to 870 conditions per place. [2022-12-13 20:28:54,870 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 23 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2022-12-13 20:28:54,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 137 flow [2022-12-13 20:28:54,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:28:54,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:28:54,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 868 transitions. [2022-12-13 20:28:54,888 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48709315375982043 [2022-12-13 20:28:54,889 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 868 transitions. [2022-12-13 20:28:54,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 868 transitions. [2022-12-13 20:28:54,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:28:54,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 868 transitions. [2022-12-13 20:28:54,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 144.66666666666666) internal successors, (868), 6 states have internal predecessors, (868), 0 states have call successors, (0), 0 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 20:28:54,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 0 states have call successors, (0), 0 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 20:28:54,904 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 0 states have call successors, (0), 0 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 20:28:54,906 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 73 flow. Second operand 6 states and 868 transitions. [2022-12-13 20:28:54,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 137 flow [2022-12-13 20:28:54,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 33 transitions, 132 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 20:28:54,911 INFO L231 Difference]: Finished difference. Result has 38 places, 32 transitions, 105 flow [2022-12-13 20:28:54,913 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=105, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2022-12-13 20:28:54,916 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2022-12-13 20:28:54,917 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 105 flow [2022-12-13 20:28:54,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 0 states have call successors, (0), 0 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 20:28:54,917 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:28:54,917 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 20:28:54,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:28:54,918 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:28:54,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:28:54,918 INFO L85 PathProgramCache]: Analyzing trace with hash 569389696, now seen corresponding path program 1 times [2022-12-13 20:28:54,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:28:54,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001001860] [2022-12-13 20:28:54,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:28:54,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:28:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:28:55,278 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 20:28:55,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:28:55,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001001860] [2022-12-13 20:28:55,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001001860] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:28:55,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:28:55,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:28:55,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672303637] [2022-12-13 20:28:55,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:28:55,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:28:55,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:28:55,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:28:55,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:28:55,453 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 297 [2022-12-13 20:28:55,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 105 flow. Second operand has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 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 20:28:55,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:28:55,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 297 [2022-12-13 20:28:55,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:28:55,638 INFO L130 PetriNetUnfolder]: 513/902 cut-off events. [2022-12-13 20:28:55,638 INFO L131 PetriNetUnfolder]: For 159/159 co-relation queries the response was YES. [2022-12-13 20:28:55,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1996 conditions, 902 events. 513/902 cut-off events. For 159/159 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4142 event pairs, 292 based on Foata normal form. 3/783 useless extension candidates. Maximal degree in co-relation 1708. Up to 833 conditions per place. [2022-12-13 20:28:55,643 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 32 selfloop transitions, 14 changer transitions 0/48 dead transitions. [2022-12-13 20:28:55,643 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 48 transitions, 241 flow [2022-12-13 20:28:55,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:28:55,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:28:55,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2022-12-13 20:28:55,646 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4898989898989899 [2022-12-13 20:28:55,646 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 873 transitions. [2022-12-13 20:28:55,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 873 transitions. [2022-12-13 20:28:55,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:28:55,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 873 transitions. [2022-12-13 20:28:55,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 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 20:28:55,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 0 states have call successors, (0), 0 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 20:28:55,651 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 0 states have call successors, (0), 0 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 20:28:55,651 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 105 flow. Second operand 6 states and 873 transitions. [2022-12-13 20:28:55,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 48 transitions, 241 flow [2022-12-13 20:28:55,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 48 transitions, 239 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:28:55,653 INFO L231 Difference]: Finished difference. Result has 45 places, 41 transitions, 186 flow [2022-12-13 20:28:55,653 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=186, PETRI_PLACES=45, PETRI_TRANSITIONS=41} [2022-12-13 20:28:55,653 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2022-12-13 20:28:55,654 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 41 transitions, 186 flow [2022-12-13 20:28:55,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 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 20:28:55,654 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:28:55,654 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:28:55,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:28:55,654 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:28:55,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:28:55,655 INFO L85 PathProgramCache]: Analyzing trace with hash 473413166, now seen corresponding path program 1 times [2022-12-13 20:28:55,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:28:55,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278111895] [2022-12-13 20:28:55,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:28:55,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:28:55,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:28:55,961 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 20:28:55,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:28:55,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278111895] [2022-12-13 20:28:55,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278111895] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:28:55,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:28:55,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:28:55,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323640243] [2022-12-13 20:28:55,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:28:55,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:28:55,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:28:55,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:28:55,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:28:56,063 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 297 [2022-12-13 20:28:56,065 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 139.16666666666666) internal successors, (835), 6 states have internal predecessors, (835), 0 states have call successors, (0), 0 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 20:28:56,065 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:28:56,065 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 297 [2022-12-13 20:28:56,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:28:56,291 INFO L130 PetriNetUnfolder]: 505/873 cut-off events. [2022-12-13 20:28:56,291 INFO L131 PetriNetUnfolder]: For 537/537 co-relation queries the response was YES. [2022-12-13 20:28:56,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2274 conditions, 873 events. 505/873 cut-off events. For 537/537 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3870 event pairs, 327 based on Foata normal form. 0/755 useless extension candidates. Maximal degree in co-relation 2212. Up to 829 conditions per place. [2022-12-13 20:28:56,295 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 36 selfloop transitions, 16 changer transitions 0/54 dead transitions. [2022-12-13 20:28:56,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 54 transitions, 358 flow [2022-12-13 20:28:56,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:28:56,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:28:56,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 871 transitions. [2022-12-13 20:28:56,298 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4887766554433221 [2022-12-13 20:28:56,298 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 871 transitions. [2022-12-13 20:28:56,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 871 transitions. [2022-12-13 20:28:56,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:28:56,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 871 transitions. [2022-12-13 20:28:56,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 145.16666666666666) internal successors, (871), 6 states have internal predecessors, (871), 0 states have call successors, (0), 0 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 20:28:56,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 0 states have call successors, (0), 0 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 20:28:56,306 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 0 states have call successors, (0), 0 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 20:28:56,306 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 186 flow. Second operand 6 states and 871 transitions. [2022-12-13 20:28:56,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 54 transitions, 358 flow [2022-12-13 20:28:56,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 54 transitions, 342 flow, removed 7 selfloop flow, removed 1 redundant places. [2022-12-13 20:28:56,310 INFO L231 Difference]: Finished difference. Result has 52 places, 50 transitions, 276 flow [2022-12-13 20:28:56,310 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=276, PETRI_PLACES=52, PETRI_TRANSITIONS=50} [2022-12-13 20:28:56,311 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 14 predicate places. [2022-12-13 20:28:56,311 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 50 transitions, 276 flow [2022-12-13 20:28:56,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.16666666666666) internal successors, (835), 6 states have internal predecessors, (835), 0 states have call successors, (0), 0 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 20:28:56,312 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:28:56,312 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:28:56,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 20:28:56,312 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 20:28:56,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:28:56,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1877612299, now seen corresponding path program 1 times [2022-12-13 20:28:56,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:28:56,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991683570] [2022-12-13 20:28:56,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:28:56,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:28:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:28:56,682 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 20:28:56,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:28:56,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991683570] [2022-12-13 20:28:56,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991683570] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:28:56,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:28:56,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:28:56,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784982967] [2022-12-13 20:28:56,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:28:56,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:28:56,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:28:56,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:28:56,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:28:56,842 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 297 [2022-12-13 20:28:56,843 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 50 transitions, 276 flow. Second operand has 7 states, 7 states have (on average 136.14285714285714) internal successors, (953), 7 states have internal predecessors, (953), 0 states have call successors, (0), 0 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 20:28:56,843 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:28:56,843 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 297 [2022-12-13 20:28:56,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:28:57,172 INFO L130 PetriNetUnfolder]: 523/906 cut-off events. [2022-12-13 20:28:57,172 INFO L131 PetriNetUnfolder]: For 450/450 co-relation queries the response was YES. [2022-12-13 20:28:57,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2467 conditions, 906 events. 523/906 cut-off events. For 450/450 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4083 event pairs, 237 based on Foata normal form. 2/830 useless extension candidates. Maximal degree in co-relation 2276. Up to 833 conditions per place. [2022-12-13 20:28:57,178 INFO L137 encePairwiseOnDemand]: 287/297 looper letters, 44 selfloop transitions, 23 changer transitions 0/69 dead transitions. [2022-12-13 20:28:57,178 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 69 transitions, 492 flow [2022-12-13 20:28:57,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:28:57,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:28:57,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 858 transitions. [2022-12-13 20:28:57,181 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48148148148148145 [2022-12-13 20:28:57,181 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 858 transitions. [2022-12-13 20:28:57,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 858 transitions. [2022-12-13 20:28:57,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:28:57,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 858 transitions. [2022-12-13 20:28:57,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 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 20:28:57,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 0 states have call successors, (0), 0 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 20:28:57,188 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 0 states have call successors, (0), 0 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 20:28:57,188 INFO L175 Difference]: Start difference. First operand has 52 places, 50 transitions, 276 flow. Second operand 6 states and 858 transitions. [2022-12-13 20:28:57,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 69 transitions, 492 flow [2022-12-13 20:28:57,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 69 transitions, 472 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-12-13 20:28:57,200 INFO L231 Difference]: Finished difference. Result has 59 places, 61 transitions, 394 flow [2022-12-13 20:28:57,200 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=394, PETRI_PLACES=59, PETRI_TRANSITIONS=61} [2022-12-13 20:28:57,201 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 21 predicate places. [2022-12-13 20:28:57,201 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 61 transitions, 394 flow [2022-12-13 20:28:57,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 136.14285714285714) internal successors, (953), 7 states have internal predecessors, (953), 0 states have call successors, (0), 0 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 20:28:57,202 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:28:57,202 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:28:57,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 20:28:57,202 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:28:57,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:28:57,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1791013145, now seen corresponding path program 1 times [2022-12-13 20:28:57,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:28:57,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156999879] [2022-12-13 20:28:57,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:28:57,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:28:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:28:57,604 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 20:28:57,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:28:57,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156999879] [2022-12-13 20:28:57,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156999879] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:28:57,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:28:57,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:28:57,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973638136] [2022-12-13 20:28:57,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:28:57,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:28:57,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:28:57,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:28:57,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:28:57,803 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 297 [2022-12-13 20:28:57,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 61 transitions, 394 flow. Second operand has 7 states, 7 states have (on average 136.14285714285714) internal successors, (953), 7 states have internal predecessors, (953), 0 states have call successors, (0), 0 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 20:28:57,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:28:57,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 297 [2022-12-13 20:28:57,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:28:58,058 INFO L130 PetriNetUnfolder]: 515/886 cut-off events. [2022-12-13 20:28:58,059 INFO L131 PetriNetUnfolder]: For 889/889 co-relation queries the response was YES. [2022-12-13 20:28:58,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2749 conditions, 886 events. 515/886 cut-off events. For 889/889 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3922 event pairs, 238 based on Foata normal form. 2/812 useless extension candidates. Maximal degree in co-relation 2521. Up to 827 conditions per place. [2022-12-13 20:28:58,064 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 48 selfloop transitions, 23 changer transitions 0/73 dead transitions. [2022-12-13 20:28:58,065 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 73 transitions, 616 flow [2022-12-13 20:28:58,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:28:58,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:28:58,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 856 transitions. [2022-12-13 20:28:58,068 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48035914702581367 [2022-12-13 20:28:58,068 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 856 transitions. [2022-12-13 20:28:58,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 856 transitions. [2022-12-13 20:28:58,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:28:58,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 856 transitions. [2022-12-13 20:28:58,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 142.66666666666666) internal successors, (856), 6 states have internal predecessors, (856), 0 states have call successors, (0), 0 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 20:28:58,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 0 states have call successors, (0), 0 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 20:28:58,074 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 0 states have call successors, (0), 0 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 20:28:58,074 INFO L175 Difference]: Start difference. First operand has 59 places, 61 transitions, 394 flow. Second operand 6 states and 856 transitions. [2022-12-13 20:28:58,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 73 transitions, 616 flow [2022-12-13 20:28:58,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 73 transitions, 600 flow, removed 7 selfloop flow, removed 1 redundant places. [2022-12-13 20:28:58,079 INFO L231 Difference]: Finished difference. Result has 65 places, 68 transitions, 494 flow [2022-12-13 20:28:58,080 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=494, PETRI_PLACES=65, PETRI_TRANSITIONS=68} [2022-12-13 20:28:58,080 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 27 predicate places. [2022-12-13 20:28:58,080 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 68 transitions, 494 flow [2022-12-13 20:28:58,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 136.14285714285714) internal successors, (953), 7 states have internal predecessors, (953), 0 states have call successors, (0), 0 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 20:28:58,081 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:28:58,081 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:28:58,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 20:28:58,081 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 20:28:58,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:28:58,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1722651049, now seen corresponding path program 2 times [2022-12-13 20:28:58,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:28:58,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990459619] [2022-12-13 20:28:58,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:28:58,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:28:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:28:58,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:28:58,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:28:58,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990459619] [2022-12-13 20:28:58,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990459619] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:28:58,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:28:58,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:28:58,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001977943] [2022-12-13 20:28:58,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:28:58,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:28:58,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:28:58,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:28:58,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:28:58,631 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 297 [2022-12-13 20:28:58,633 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 68 transitions, 494 flow. Second operand has 7 states, 7 states have (on average 136.14285714285714) internal successors, (953), 7 states have internal predecessors, (953), 0 states have call successors, (0), 0 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 20:28:58,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:28:58,633 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 297 [2022-12-13 20:28:58,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:28:58,926 INFO L130 PetriNetUnfolder]: 507/874 cut-off events. [2022-12-13 20:28:58,926 INFO L131 PetriNetUnfolder]: For 1040/1040 co-relation queries the response was YES. [2022-12-13 20:28:58,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2923 conditions, 874 events. 507/874 cut-off events. For 1040/1040 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3848 event pairs, 246 based on Foata normal form. 2/802 useless extension candidates. Maximal degree in co-relation 2728. Up to 792 conditions per place. [2022-12-13 20:28:58,932 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 45 selfloop transitions, 30 changer transitions 0/77 dead transitions. [2022-12-13 20:28:58,932 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 77 transitions, 702 flow [2022-12-13 20:28:58,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:28:58,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:28:58,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 858 transitions. [2022-12-13 20:28:58,935 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48148148148148145 [2022-12-13 20:28:58,935 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 858 transitions. [2022-12-13 20:28:58,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 858 transitions. [2022-12-13 20:28:58,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:28:58,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 858 transitions. [2022-12-13 20:28:58,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 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 20:28:58,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 0 states have call successors, (0), 0 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 20:28:58,942 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 0 states have call successors, (0), 0 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 20:28:58,943 INFO L175 Difference]: Start difference. First operand has 65 places, 68 transitions, 494 flow. Second operand 6 states and 858 transitions. [2022-12-13 20:28:58,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 77 transitions, 702 flow [2022-12-13 20:28:58,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 77 transitions, 673 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-12-13 20:28:58,948 INFO L231 Difference]: Finished difference. Result has 69 places, 71 transitions, 573 flow [2022-12-13 20:28:58,949 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=573, PETRI_PLACES=69, PETRI_TRANSITIONS=71} [2022-12-13 20:28:58,949 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 31 predicate places. [2022-12-13 20:28:58,949 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 71 transitions, 573 flow [2022-12-13 20:28:58,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 136.14285714285714) internal successors, (953), 7 states have internal predecessors, (953), 0 states have call successors, (0), 0 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 20:28:58,950 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:28:58,950 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:28:58,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 20:28:58,950 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 20:28:58,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:28:58,950 INFO L85 PathProgramCache]: Analyzing trace with hash -313821234, now seen corresponding path program 1 times [2022-12-13 20:28:58,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:28:58,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139206313] [2022-12-13 20:28:58,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:28:58,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:28:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:28:59,411 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 20:28:59,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:28:59,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139206313] [2022-12-13 20:28:59,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139206313] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:28:59,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:28:59,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:28:59,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483935497] [2022-12-13 20:28:59,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:28:59,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:28:59,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:28:59,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:28:59,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:28:59,765 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 297 [2022-12-13 20:28:59,767 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 71 transitions, 573 flow. Second operand has 10 states, 10 states have (on average 134.9) internal successors, (1349), 10 states have internal predecessors, (1349), 0 states have call successors, (0), 0 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 20:28:59,767 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:28:59,767 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 297 [2022-12-13 20:28:59,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:00,256 INFO L130 PetriNetUnfolder]: 544/943 cut-off events. [2022-12-13 20:29:00,256 INFO L131 PetriNetUnfolder]: For 1607/1607 co-relation queries the response was YES. [2022-12-13 20:29:00,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3401 conditions, 943 events. 544/943 cut-off events. For 1607/1607 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4185 event pairs, 236 based on Foata normal form. 4/873 useless extension candidates. Maximal degree in co-relation 3042. Up to 860 conditions per place. [2022-12-13 20:29:00,261 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 58 selfloop transitions, 47 changer transitions 0/107 dead transitions. [2022-12-13 20:29:00,261 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 107 transitions, 1078 flow [2022-12-13 20:29:00,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 20:29:00,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 20:29:00,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1678 transitions. [2022-12-13 20:29:00,264 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4708193041526375 [2022-12-13 20:29:00,264 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1678 transitions. [2022-12-13 20:29:00,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1678 transitions. [2022-12-13 20:29:00,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:00,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1678 transitions. [2022-12-13 20:29:00,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 139.83333333333334) internal successors, (1678), 12 states have internal predecessors, (1678), 0 states have call successors, (0), 0 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 20:29:00,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:29:00,270 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:29:00,270 INFO L175 Difference]: Start difference. First operand has 69 places, 71 transitions, 573 flow. Second operand 12 states and 1678 transitions. [2022-12-13 20:29:00,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 107 transitions, 1078 flow [2022-12-13 20:29:00,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 107 transitions, 1001 flow, removed 9 selfloop flow, removed 4 redundant places. [2022-12-13 20:29:00,275 INFO L231 Difference]: Finished difference. Result has 79 places, 99 transitions, 910 flow [2022-12-13 20:29:00,275 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=910, PETRI_PLACES=79, PETRI_TRANSITIONS=99} [2022-12-13 20:29:00,276 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 41 predicate places. [2022-12-13 20:29:00,276 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 99 transitions, 910 flow [2022-12-13 20:29:00,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 134.9) internal successors, (1349), 10 states have internal predecessors, (1349), 0 states have call successors, (0), 0 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 20:29:00,277 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:00,277 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:00,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 20:29:00,277 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:29:00,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:00,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1878894430, now seen corresponding path program 2 times [2022-12-13 20:29:00,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:00,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409068456] [2022-12-13 20:29:00,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:00,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:00,664 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 20:29:00,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:00,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409068456] [2022-12-13 20:29:00,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409068456] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:00,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:00,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:29:00,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301125179] [2022-12-13 20:29:00,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:00,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:29:00,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:00,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:29:00,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:29:00,982 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 297 [2022-12-13 20:29:00,984 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 99 transitions, 910 flow. Second operand has 10 states, 10 states have (on average 134.9) internal successors, (1349), 10 states have internal predecessors, (1349), 0 states have call successors, (0), 0 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 20:29:00,984 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:00,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 297 [2022-12-13 20:29:00,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:01,425 INFO L130 PetriNetUnfolder]: 568/967 cut-off events. [2022-12-13 20:29:01,426 INFO L131 PetriNetUnfolder]: For 1780/1780 co-relation queries the response was YES. [2022-12-13 20:29:01,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3722 conditions, 967 events. 568/967 cut-off events. For 1780/1780 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4262 event pairs, 232 based on Foata normal form. 4/897 useless extension candidates. Maximal degree in co-relation 3289. Up to 879 conditions per place. [2022-12-13 20:29:01,432 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 71 selfloop transitions, 50 changer transitions 0/123 dead transitions. [2022-12-13 20:29:01,432 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 123 transitions, 1350 flow [2022-12-13 20:29:01,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 20:29:01,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 20:29:01,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1129 transitions. [2022-12-13 20:29:01,436 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4751683501683502 [2022-12-13 20:29:01,436 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1129 transitions. [2022-12-13 20:29:01,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1129 transitions. [2022-12-13 20:29:01,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:01,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1129 transitions. [2022-12-13 20:29:01,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 141.125) internal successors, (1129), 8 states have internal predecessors, (1129), 0 states have call successors, (0), 0 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 20:29:01,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 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 20:29:01,443 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 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 20:29:01,443 INFO L175 Difference]: Start difference. First operand has 79 places, 99 transitions, 910 flow. Second operand 8 states and 1129 transitions. [2022-12-13 20:29:01,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 123 transitions, 1350 flow [2022-12-13 20:29:01,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 123 transitions, 1316 flow, removed 7 selfloop flow, removed 3 redundant places. [2022-12-13 20:29:01,452 INFO L231 Difference]: Finished difference. Result has 86 places, 116 transitions, 1199 flow [2022-12-13 20:29:01,452 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=883, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1199, PETRI_PLACES=86, PETRI_TRANSITIONS=116} [2022-12-13 20:29:01,452 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 48 predicate places. [2022-12-13 20:29:01,453 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 116 transitions, 1199 flow [2022-12-13 20:29:01,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 134.9) internal successors, (1349), 10 states have internal predecessors, (1349), 0 states have call successors, (0), 0 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 20:29:01,453 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:01,453 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:01,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 20:29:01,454 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 20:29:01,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:01,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1923564655, now seen corresponding path program 1 times [2022-12-13 20:29:01,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:01,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706979252] [2022-12-13 20:29:01,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:01,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:01,814 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 20:29:01,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:01,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706979252] [2022-12-13 20:29:01,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706979252] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:01,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:01,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:29:01,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008858721] [2022-12-13 20:29:01,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:01,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:29:01,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:01,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:29:01,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:29:01,991 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 297 [2022-12-13 20:29:01,992 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 116 transitions, 1199 flow. Second operand has 7 states, 7 states have (on average 135.28571428571428) internal successors, (947), 7 states have internal predecessors, (947), 0 states have call successors, (0), 0 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 20:29:01,992 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:01,992 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 297 [2022-12-13 20:29:01,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:02,414 INFO L130 PetriNetUnfolder]: 1046/1871 cut-off events. [2022-12-13 20:29:02,415 INFO L131 PetriNetUnfolder]: For 4046/4046 co-relation queries the response was YES. [2022-12-13 20:29:02,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7272 conditions, 1871 events. 1046/1871 cut-off events. For 4046/4046 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 10490 event pairs, 331 based on Foata normal form. 24/1746 useless extension candidates. Maximal degree in co-relation 6955. Up to 785 conditions per place. [2022-12-13 20:29:02,424 INFO L137 encePairwiseOnDemand]: 285/297 looper letters, 139 selfloop transitions, 38 changer transitions 0/179 dead transitions. [2022-12-13 20:29:02,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 179 transitions, 1948 flow [2022-12-13 20:29:02,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:29:02,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 20:29:02,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1010 transitions. [2022-12-13 20:29:02,426 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4858104858104858 [2022-12-13 20:29:02,426 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1010 transitions. [2022-12-13 20:29:02,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1010 transitions. [2022-12-13 20:29:02,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:02,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1010 transitions. [2022-12-13 20:29:02,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 144.28571428571428) internal successors, (1010), 7 states have internal predecessors, (1010), 0 states have call successors, (0), 0 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 20:29:02,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 297.0) internal successors, (2376), 8 states have internal predecessors, (2376), 0 states have call successors, (0), 0 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 20:29:02,429 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 297.0) internal successors, (2376), 8 states have internal predecessors, (2376), 0 states have call successors, (0), 0 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 20:29:02,429 INFO L175 Difference]: Start difference. First operand has 86 places, 116 transitions, 1199 flow. Second operand 7 states and 1010 transitions. [2022-12-13 20:29:02,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 179 transitions, 1948 flow [2022-12-13 20:29:02,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 179 transitions, 1863 flow, removed 10 selfloop flow, removed 4 redundant places. [2022-12-13 20:29:02,438 INFO L231 Difference]: Finished difference. Result has 91 places, 128 transitions, 1362 flow [2022-12-13 20:29:02,438 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=1114, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1362, PETRI_PLACES=91, PETRI_TRANSITIONS=128} [2022-12-13 20:29:02,439 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 53 predicate places. [2022-12-13 20:29:02,439 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 128 transitions, 1362 flow [2022-12-13 20:29:02,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 135.28571428571428) internal successors, (947), 7 states have internal predecessors, (947), 0 states have call successors, (0), 0 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 20:29:02,439 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:02,439 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:02,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 20:29:02,440 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:29:02,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:02,440 INFO L85 PathProgramCache]: Analyzing trace with hash -294548379, now seen corresponding path program 2 times [2022-12-13 20:29:02,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:02,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254238393] [2022-12-13 20:29:02,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:02,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:02,709 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 20:29:02,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:02,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254238393] [2022-12-13 20:29:02,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254238393] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:02,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:02,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:29:02,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828269719] [2022-12-13 20:29:02,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:02,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:29:02,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:02,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:29:02,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:29:02,894 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 297 [2022-12-13 20:29:02,895 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 128 transitions, 1362 flow. Second operand has 7 states, 7 states have (on average 135.28571428571428) internal successors, (947), 7 states have internal predecessors, (947), 0 states have call successors, (0), 0 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 20:29:02,895 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:02,895 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 297 [2022-12-13 20:29:02,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:03,386 INFO L130 PetriNetUnfolder]: 1240/2266 cut-off events. [2022-12-13 20:29:03,386 INFO L131 PetriNetUnfolder]: For 7045/7045 co-relation queries the response was YES. [2022-12-13 20:29:03,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9579 conditions, 2266 events. 1240/2266 cut-off events. For 7045/7045 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 13749 event pairs, 301 based on Foata normal form. 24/2118 useless extension candidates. Maximal degree in co-relation 5951. Up to 995 conditions per place. [2022-12-13 20:29:03,396 INFO L137 encePairwiseOnDemand]: 285/297 looper letters, 146 selfloop transitions, 36 changer transitions 0/184 dead transitions. [2022-12-13 20:29:03,396 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 184 transitions, 2109 flow [2022-12-13 20:29:03,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:29:03,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 20:29:03,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1011 transitions. [2022-12-13 20:29:03,398 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4862914862914863 [2022-12-13 20:29:03,398 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1011 transitions. [2022-12-13 20:29:03,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1011 transitions. [2022-12-13 20:29:03,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:03,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1011 transitions. [2022-12-13 20:29:03,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 144.42857142857142) internal successors, (1011), 7 states have internal predecessors, (1011), 0 states have call successors, (0), 0 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 20:29:03,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 297.0) internal successors, (2376), 8 states have internal predecessors, (2376), 0 states have call successors, (0), 0 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 20:29:03,401 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 297.0) internal successors, (2376), 8 states have internal predecessors, (2376), 0 states have call successors, (0), 0 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 20:29:03,401 INFO L175 Difference]: Start difference. First operand has 91 places, 128 transitions, 1362 flow. Second operand 7 states and 1011 transitions. [2022-12-13 20:29:03,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 184 transitions, 2109 flow [2022-12-13 20:29:03,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 184 transitions, 2089 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-12-13 20:29:03,414 INFO L231 Difference]: Finished difference. Result has 97 places, 136 transitions, 1545 flow [2022-12-13 20:29:03,414 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=1343, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1545, PETRI_PLACES=97, PETRI_TRANSITIONS=136} [2022-12-13 20:29:03,415 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 59 predicate places. [2022-12-13 20:29:03,415 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 136 transitions, 1545 flow [2022-12-13 20:29:03,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 135.28571428571428) internal successors, (947), 7 states have internal predecessors, (947), 0 states have call successors, (0), 0 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 20:29:03,415 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:03,415 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:03,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 20:29:03,416 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 20:29:03,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:03,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1062766977, now seen corresponding path program 1 times [2022-12-13 20:29:03,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:03,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146119906] [2022-12-13 20:29:03,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:03,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:03,741 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 20:29:03,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:03,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146119906] [2022-12-13 20:29:03,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146119906] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:03,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:03,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:29:03,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527241461] [2022-12-13 20:29:03,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:03,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:29:03,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:03,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:29:03,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:29:04,033 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 297 [2022-12-13 20:29:04,035 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 136 transitions, 1545 flow. Second operand has 10 states, 10 states have (on average 134.9) internal successors, (1349), 10 states have internal predecessors, (1349), 0 states have call successors, (0), 0 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 20:29:04,035 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:04,035 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 297 [2022-12-13 20:29:04,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:04,588 INFO L130 PetriNetUnfolder]: 1272/2321 cut-off events. [2022-12-13 20:29:04,588 INFO L131 PetriNetUnfolder]: For 10405/10405 co-relation queries the response was YES. [2022-12-13 20:29:04,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10800 conditions, 2321 events. 1272/2321 cut-off events. For 10405/10405 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 14080 event pairs, 587 based on Foata normal form. 4/2154 useless extension candidates. Maximal degree in co-relation 6997. Up to 2109 conditions per place. [2022-12-13 20:29:04,600 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 97 selfloop transitions, 73 changer transitions 0/172 dead transitions. [2022-12-13 20:29:04,600 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 172 transitions, 2331 flow [2022-12-13 20:29:04,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 20:29:04,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 20:29:04,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1131 transitions. [2022-12-13 20:29:04,604 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.476010101010101 [2022-12-13 20:29:04,604 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1131 transitions. [2022-12-13 20:29:04,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1131 transitions. [2022-12-13 20:29:04,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:04,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1131 transitions. [2022-12-13 20:29:04,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 141.375) internal successors, (1131), 8 states have internal predecessors, (1131), 0 states have call successors, (0), 0 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 20:29:04,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 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 20:29:04,607 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 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 20:29:04,607 INFO L175 Difference]: Start difference. First operand has 97 places, 136 transitions, 1545 flow. Second operand 8 states and 1131 transitions. [2022-12-13 20:29:04,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 172 transitions, 2331 flow [2022-12-13 20:29:04,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 172 transitions, 2256 flow, removed 16 selfloop flow, removed 4 redundant places. [2022-12-13 20:29:04,629 INFO L231 Difference]: Finished difference. Result has 104 places, 164 transitions, 2133 flow [2022-12-13 20:29:04,630 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=1479, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2133, PETRI_PLACES=104, PETRI_TRANSITIONS=164} [2022-12-13 20:29:04,630 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 66 predicate places. [2022-12-13 20:29:04,630 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 164 transitions, 2133 flow [2022-12-13 20:29:04,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 134.9) internal successors, (1349), 10 states have internal predecessors, (1349), 0 states have call successors, (0), 0 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 20:29:04,631 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:04,631 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:04,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 20:29:04,631 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:29:04,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:04,631 INFO L85 PathProgramCache]: Analyzing trace with hash -313288223, now seen corresponding path program 1 times [2022-12-13 20:29:04,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:04,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016157795] [2022-12-13 20:29:04,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:04,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:05,015 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 20:29:05,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:05,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016157795] [2022-12-13 20:29:05,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016157795] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:05,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:05,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 20:29:05,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354960720] [2022-12-13 20:29:05,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:05,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 20:29:05,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:05,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 20:29:05,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:29:05,344 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 297 [2022-12-13 20:29:05,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 164 transitions, 2133 flow. Second operand has 8 states, 8 states have (on average 134.125) internal successors, (1073), 8 states have internal predecessors, (1073), 0 states have call successors, (0), 0 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 20:29:05,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:05,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 297 [2022-12-13 20:29:05,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:05,928 INFO L130 PetriNetUnfolder]: 1398/2547 cut-off events. [2022-12-13 20:29:05,929 INFO L131 PetriNetUnfolder]: For 12749/12749 co-relation queries the response was YES. [2022-12-13 20:29:05,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12336 conditions, 2547 events. 1398/2547 cut-off events. For 12749/12749 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 15688 event pairs, 653 based on Foata normal form. 30/2410 useless extension candidates. Maximal degree in co-relation 11722. Up to 2189 conditions per place. [2022-12-13 20:29:05,941 INFO L137 encePairwiseOnDemand]: 287/297 looper letters, 131 selfloop transitions, 74 changer transitions 0/207 dead transitions. [2022-12-13 20:29:05,941 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 207 transitions, 2900 flow [2022-12-13 20:29:05,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 20:29:05,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 20:29:05,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1401 transitions. [2022-12-13 20:29:05,944 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4717171717171717 [2022-12-13 20:29:05,944 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1401 transitions. [2022-12-13 20:29:05,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1401 transitions. [2022-12-13 20:29:05,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:05,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1401 transitions. [2022-12-13 20:29:05,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 140.1) internal successors, (1401), 10 states have internal predecessors, (1401), 0 states have call successors, (0), 0 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 20:29:05,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 297.0) internal successors, (3267), 11 states have internal predecessors, (3267), 0 states have call successors, (0), 0 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 20:29:05,948 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 297.0) internal successors, (3267), 11 states have internal predecessors, (3267), 0 states have call successors, (0), 0 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 20:29:05,948 INFO L175 Difference]: Start difference. First operand has 104 places, 164 transitions, 2133 flow. Second operand 10 states and 1401 transitions. [2022-12-13 20:29:05,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 207 transitions, 2900 flow [2022-12-13 20:29:05,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 207 transitions, 2816 flow, removed 11 selfloop flow, removed 3 redundant places. [2022-12-13 20:29:05,973 INFO L231 Difference]: Finished difference. Result has 112 places, 183 transitions, 2430 flow [2022-12-13 20:29:05,973 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=2049, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2430, PETRI_PLACES=112, PETRI_TRANSITIONS=183} [2022-12-13 20:29:05,973 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 74 predicate places. [2022-12-13 20:29:05,974 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 183 transitions, 2430 flow [2022-12-13 20:29:05,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 134.125) internal successors, (1073), 8 states have internal predecessors, (1073), 0 states have call successors, (0), 0 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 20:29:05,974 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:05,974 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:05,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 20:29:05,974 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 20:29:05,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:05,974 INFO L85 PathProgramCache]: Analyzing trace with hash -316059743, now seen corresponding path program 1 times [2022-12-13 20:29:05,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:05,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601624348] [2022-12-13 20:29:05,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:05,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:06,277 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 20:29:06,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:06,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601624348] [2022-12-13 20:29:06,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601624348] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:06,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:06,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:29:06,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405801921] [2022-12-13 20:29:06,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:06,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:29:06,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:06,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:29:06,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:29:06,526 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 297 [2022-12-13 20:29:06,527 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 183 transitions, 2430 flow. Second operand has 10 states, 10 states have (on average 134.9) internal successors, (1349), 10 states have internal predecessors, (1349), 0 states have call successors, (0), 0 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 20:29:06,528 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:06,528 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 297 [2022-12-13 20:29:06,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:07,156 INFO L130 PetriNetUnfolder]: 1410/2549 cut-off events. [2022-12-13 20:29:07,156 INFO L131 PetriNetUnfolder]: For 14440/14440 co-relation queries the response was YES. [2022-12-13 20:29:07,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13185 conditions, 2549 events. 1410/2549 cut-off events. For 14440/14440 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 15574 event pairs, 714 based on Foata normal form. 4/2386 useless extension candidates. Maximal degree in co-relation 11697. Up to 2374 conditions per place. [2022-12-13 20:29:07,167 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 135 selfloop transitions, 62 changer transitions 0/199 dead transitions. [2022-12-13 20:29:07,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 199 transitions, 3015 flow [2022-12-13 20:29:07,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 20:29:07,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 20:29:07,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1540 transitions. [2022-12-13 20:29:07,170 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4713804713804714 [2022-12-13 20:29:07,170 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1540 transitions. [2022-12-13 20:29:07,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1540 transitions. [2022-12-13 20:29:07,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:07,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1540 transitions. [2022-12-13 20:29:07,172 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 20:29:07,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 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 20:29:07,174 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 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 20:29:07,174 INFO L175 Difference]: Start difference. First operand has 112 places, 183 transitions, 2430 flow. Second operand 11 states and 1540 transitions. [2022-12-13 20:29:07,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 199 transitions, 3015 flow [2022-12-13 20:29:07,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 199 transitions, 2835 flow, removed 38 selfloop flow, removed 5 redundant places. [2022-12-13 20:29:07,208 INFO L231 Difference]: Finished difference. Result has 119 places, 192 transitions, 2559 flow [2022-12-13 20:29:07,208 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=2252, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2559, PETRI_PLACES=119, PETRI_TRANSITIONS=192} [2022-12-13 20:29:07,209 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 81 predicate places. [2022-12-13 20:29:07,209 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 192 transitions, 2559 flow [2022-12-13 20:29:07,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 134.9) internal successors, (1349), 10 states have internal predecessors, (1349), 0 states have call successors, (0), 0 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 20:29:07,209 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:07,209 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:07,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 20:29:07,209 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 20:29:07,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:07,210 INFO L85 PathProgramCache]: Analyzing trace with hash -300747173, now seen corresponding path program 2 times [2022-12-13 20:29:07,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:07,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804386339] [2022-12-13 20:29:07,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:07,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:07,460 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 20:29:07,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:07,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804386339] [2022-12-13 20:29:07,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804386339] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:07,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:07,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:29:07,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849522917] [2022-12-13 20:29:07,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:07,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:29:07,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:07,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:29:07,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:29:07,659 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 297 [2022-12-13 20:29:07,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 192 transitions, 2559 flow. Second operand has 7 states, 7 states have (on average 134.28571428571428) internal successors, (940), 7 states have internal predecessors, (940), 0 states have call successors, (0), 0 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 20:29:07,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:07,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 297 [2022-12-13 20:29:07,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:08,357 INFO L130 PetriNetUnfolder]: 1756/3174 cut-off events. [2022-12-13 20:29:08,357 INFO L131 PetriNetUnfolder]: For 19890/19890 co-relation queries the response was YES. [2022-12-13 20:29:08,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16042 conditions, 3174 events. 1756/3174 cut-off events. For 19890/19890 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 20529 event pairs, 242 based on Foata normal form. 65/3059 useless extension candidates. Maximal degree in co-relation 15633. Up to 1622 conditions per place. [2022-12-13 20:29:08,372 INFO L137 encePairwiseOnDemand]: 284/297 looper letters, 163 selfloop transitions, 100 changer transitions 0/265 dead transitions. [2022-12-13 20:29:08,372 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 265 transitions, 3690 flow [2022-12-13 20:29:08,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 20:29:08,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 20:29:08,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1152 transitions. [2022-12-13 20:29:08,374 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48484848484848486 [2022-12-13 20:29:08,374 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1152 transitions. [2022-12-13 20:29:08,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1152 transitions. [2022-12-13 20:29:08,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:08,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1152 transitions. [2022-12-13 20:29:08,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 144.0) internal successors, (1152), 8 states have internal predecessors, (1152), 0 states have call successors, (0), 0 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 20:29:08,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 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 20:29:08,377 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 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 20:29:08,377 INFO L175 Difference]: Start difference. First operand has 119 places, 192 transitions, 2559 flow. Second operand 8 states and 1152 transitions. [2022-12-13 20:29:08,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 265 transitions, 3690 flow [2022-12-13 20:29:08,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 265 transitions, 3562 flow, removed 22 selfloop flow, removed 5 redundant places. [2022-12-13 20:29:08,418 INFO L231 Difference]: Finished difference. Result has 125 places, 226 transitions, 3164 flow [2022-12-13 20:29:08,418 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=2431, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3164, PETRI_PLACES=125, PETRI_TRANSITIONS=226} [2022-12-13 20:29:08,418 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 87 predicate places. [2022-12-13 20:29:08,418 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 226 transitions, 3164 flow [2022-12-13 20:29:08,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 134.28571428571428) internal successors, (940), 7 states have internal predecessors, (940), 0 states have call successors, (0), 0 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 20:29:08,419 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:08,419 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:08,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 20:29:08,419 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:29:08,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:08,419 INFO L85 PathProgramCache]: Analyzing trace with hash -314675903, now seen corresponding path program 2 times [2022-12-13 20:29:08,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:08,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74172812] [2022-12-13 20:29:08,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:08,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:08,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:29:08,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:08,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74172812] [2022-12-13 20:29:08,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74172812] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:08,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:08,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:29:08,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190287177] [2022-12-13 20:29:08,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:08,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:29:08,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:08,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:29:08,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:29:09,057 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 297 [2022-12-13 20:29:09,058 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 226 transitions, 3164 flow. Second operand has 10 states, 10 states have (on average 134.9) internal successors, (1349), 10 states have internal predecessors, (1349), 0 states have call successors, (0), 0 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 20:29:09,058 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:09,058 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 297 [2022-12-13 20:29:09,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:09,829 INFO L130 PetriNetUnfolder]: 1732/3148 cut-off events. [2022-12-13 20:29:09,830 INFO L131 PetriNetUnfolder]: For 28017/28017 co-relation queries the response was YES. [2022-12-13 20:29:09,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18308 conditions, 3148 events. 1732/3148 cut-off events. For 28017/28017 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 20407 event pairs, 772 based on Foata normal form. 4/2978 useless extension candidates. Maximal degree in co-relation 16058. Up to 2920 conditions per place. [2022-12-13 20:29:09,844 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 171 selfloop transitions, 68 changer transitions 0/241 dead transitions. [2022-12-13 20:29:09,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 241 transitions, 3813 flow [2022-12-13 20:29:09,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 20:29:09,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 20:29:09,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1543 transitions. [2022-12-13 20:29:09,846 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47229874502601776 [2022-12-13 20:29:09,846 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1543 transitions. [2022-12-13 20:29:09,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1543 transitions. [2022-12-13 20:29:09,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:09,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1543 transitions. [2022-12-13 20:29:09,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 140.27272727272728) internal successors, (1543), 11 states have internal predecessors, (1543), 0 states have call successors, (0), 0 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 20:29:09,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 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 20:29:09,851 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 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 20:29:09,851 INFO L175 Difference]: Start difference. First operand has 125 places, 226 transitions, 3164 flow. Second operand 11 states and 1543 transitions. [2022-12-13 20:29:09,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 241 transitions, 3813 flow [2022-12-13 20:29:09,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 241 transitions, 3686 flow, removed 39 selfloop flow, removed 3 redundant places. [2022-12-13 20:29:09,935 INFO L231 Difference]: Finished difference. Result has 133 places, 232 transitions, 3323 flow [2022-12-13 20:29:09,935 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=3041, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3323, PETRI_PLACES=133, PETRI_TRANSITIONS=232} [2022-12-13 20:29:09,936 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 95 predicate places. [2022-12-13 20:29:09,936 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 232 transitions, 3323 flow [2022-12-13 20:29:09,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 134.9) internal successors, (1349), 10 states have internal predecessors, (1349), 0 states have call successors, (0), 0 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 20:29:09,936 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:09,936 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:09,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 20:29:09,936 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 20:29:09,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:09,937 INFO L85 PathProgramCache]: Analyzing trace with hash -300746828, now seen corresponding path program 1 times [2022-12-13 20:29:09,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:09,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050356277] [2022-12-13 20:29:09,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:09,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:10,169 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 20:29:10,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:10,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050356277] [2022-12-13 20:29:10,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050356277] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:10,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:10,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:29:10,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155009775] [2022-12-13 20:29:10,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:10,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:29:10,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:10,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:29:10,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:29:10,356 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 297 [2022-12-13 20:29:10,357 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 232 transitions, 3323 flow. Second operand has 7 states, 7 states have (on average 134.28571428571428) internal successors, (940), 7 states have internal predecessors, (940), 0 states have call successors, (0), 0 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 20:29:10,357 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:10,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 297 [2022-12-13 20:29:10,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:11,008 INFO L130 PetriNetUnfolder]: 1805/3301 cut-off events. [2022-12-13 20:29:11,008 INFO L131 PetriNetUnfolder]: For 29166/29166 co-relation queries the response was YES. [2022-12-13 20:29:11,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19204 conditions, 3301 events. 1805/3301 cut-off events. For 29166/29166 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 21908 event pairs, 281 based on Foata normal form. 24/3147 useless extension candidates. Maximal degree in co-relation 18909. Up to 1761 conditions per place. [2022-12-13 20:29:11,024 INFO L137 encePairwiseOnDemand]: 284/297 looper letters, 167 selfloop transitions, 116 changer transitions 5/290 dead transitions. [2022-12-13 20:29:11,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 290 transitions, 4554 flow [2022-12-13 20:29:11,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 20:29:11,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 20:29:11,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1143 transitions. [2022-12-13 20:29:11,026 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4810606060606061 [2022-12-13 20:29:11,026 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1143 transitions. [2022-12-13 20:29:11,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1143 transitions. [2022-12-13 20:29:11,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:11,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1143 transitions. [2022-12-13 20:29:11,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 142.875) internal successors, (1143), 8 states have internal predecessors, (1143), 0 states have call successors, (0), 0 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 20:29:11,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 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 20:29:11,029 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 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 20:29:11,030 INFO L175 Difference]: Start difference. First operand has 133 places, 232 transitions, 3323 flow. Second operand 8 states and 1143 transitions. [2022-12-13 20:29:11,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 290 transitions, 4554 flow [2022-12-13 20:29:11,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 290 transitions, 4411 flow, removed 20 selfloop flow, removed 7 redundant places. [2022-12-13 20:29:11,099 INFO L231 Difference]: Finished difference. Result has 135 places, 255 transitions, 3783 flow [2022-12-13 20:29:11,099 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=3180, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3783, PETRI_PLACES=135, PETRI_TRANSITIONS=255} [2022-12-13 20:29:11,100 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 97 predicate places. [2022-12-13 20:29:11,100 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 255 transitions, 3783 flow [2022-12-13 20:29:11,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 134.28571428571428) internal successors, (940), 7 states have internal predecessors, (940), 0 states have call successors, (0), 0 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 20:29:11,100 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:11,100 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:11,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 20:29:11,100 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 20:29:11,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:11,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1417230042, now seen corresponding path program 1 times [2022-12-13 20:29:11,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:11,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877528018] [2022-12-13 20:29:11,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:11,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:11,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:29:11,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:11,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877528018] [2022-12-13 20:29:11,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877528018] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:11,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:11,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:29:11,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353628758] [2022-12-13 20:29:11,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:11,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:29:11,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:11,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:29:11,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:29:11,913 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 297 [2022-12-13 20:29:11,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 255 transitions, 3783 flow. Second operand has 11 states, 11 states have (on average 131.9090909090909) internal successors, (1451), 11 states have internal predecessors, (1451), 0 states have call successors, (0), 0 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 20:29:11,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:11,914 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 297 [2022-12-13 20:29:11,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:12,864 INFO L130 PetriNetUnfolder]: 1832/3321 cut-off events. [2022-12-13 20:29:12,864 INFO L131 PetriNetUnfolder]: For 36022/36022 co-relation queries the response was YES. [2022-12-13 20:29:12,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20925 conditions, 3321 events. 1832/3321 cut-off events. For 36022/36022 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 21684 event pairs, 722 based on Foata normal form. 8/3152 useless extension candidates. Maximal degree in co-relation 18376. Up to 2934 conditions per place. [2022-12-13 20:29:12,881 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 171 selfloop transitions, 135 changer transitions 0/308 dead transitions. [2022-12-13 20:29:12,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 308 transitions, 4987 flow [2022-12-13 20:29:12,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 20:29:12,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 20:29:12,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1393 transitions. [2022-12-13 20:29:12,883 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.469023569023569 [2022-12-13 20:29:12,883 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1393 transitions. [2022-12-13 20:29:12,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1393 transitions. [2022-12-13 20:29:12,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:12,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1393 transitions. [2022-12-13 20:29:12,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 139.3) internal successors, (1393), 10 states have internal predecessors, (1393), 0 states have call successors, (0), 0 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 20:29:12,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 297.0) internal successors, (3267), 11 states have internal predecessors, (3267), 0 states have call successors, (0), 0 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 20:29:12,887 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 297.0) internal successors, (3267), 11 states have internal predecessors, (3267), 0 states have call successors, (0), 0 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 20:29:12,887 INFO L175 Difference]: Start difference. First operand has 135 places, 255 transitions, 3783 flow. Second operand 10 states and 1393 transitions. [2022-12-13 20:29:12,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 308 transitions, 4987 flow [2022-12-13 20:29:12,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 308 transitions, 4912 flow, removed 18 selfloop flow, removed 3 redundant places. [2022-12-13 20:29:12,967 INFO L231 Difference]: Finished difference. Result has 145 places, 294 transitions, 4660 flow [2022-12-13 20:29:12,967 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=3708, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4660, PETRI_PLACES=145, PETRI_TRANSITIONS=294} [2022-12-13 20:29:12,968 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 107 predicate places. [2022-12-13 20:29:12,968 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 294 transitions, 4660 flow [2022-12-13 20:29:12,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 131.9090909090909) internal successors, (1451), 11 states have internal predecessors, (1451), 0 states have call successors, (0), 0 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 20:29:12,968 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:12,968 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:12,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 20:29:12,969 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:29:12,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:12,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1207205244, now seen corresponding path program 2 times [2022-12-13 20:29:12,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:12,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314917125] [2022-12-13 20:29:12,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:12,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:13,584 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 20:29:13,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:13,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314917125] [2022-12-13 20:29:13,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314917125] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:13,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:13,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:29:13,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040944190] [2022-12-13 20:29:13,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:13,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:29:13,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:13,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:29:13,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:29:14,027 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 297 [2022-12-13 20:29:14,028 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 294 transitions, 4660 flow. Second operand has 11 states, 11 states have (on average 131.9090909090909) internal successors, (1451), 11 states have internal predecessors, (1451), 0 states have call successors, (0), 0 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 20:29:14,028 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:14,028 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 297 [2022-12-13 20:29:14,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:15,064 INFO L130 PetriNetUnfolder]: 1884/3399 cut-off events. [2022-12-13 20:29:15,064 INFO L131 PetriNetUnfolder]: For 42525/42525 co-relation queries the response was YES. [2022-12-13 20:29:15,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22744 conditions, 3399 events. 1884/3399 cut-off events. For 42525/42525 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 22279 event pairs, 804 based on Foata normal form. 12/3233 useless extension candidates. Maximal degree in co-relation 21583. Up to 3073 conditions per place. [2022-12-13 20:29:15,081 INFO L137 encePairwiseOnDemand]: 281/297 looper letters, 211 selfloop transitions, 124 changer transitions 0/337 dead transitions. [2022-12-13 20:29:15,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 337 transitions, 5888 flow [2022-12-13 20:29:15,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 20:29:15,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 20:29:15,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1657 transitions. [2022-12-13 20:29:15,084 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4649270482603816 [2022-12-13 20:29:15,084 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1657 transitions. [2022-12-13 20:29:15,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1657 transitions. [2022-12-13 20:29:15,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:15,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1657 transitions. [2022-12-13 20:29:15,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 138.08333333333334) internal successors, (1657), 12 states have internal predecessors, (1657), 0 states have call successors, (0), 0 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 20:29:15,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:29:15,088 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:29:15,088 INFO L175 Difference]: Start difference. First operand has 145 places, 294 transitions, 4660 flow. Second operand 12 states and 1657 transitions. [2022-12-13 20:29:15,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 337 transitions, 5888 flow [2022-12-13 20:29:15,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 337 transitions, 5778 flow, removed 48 selfloop flow, removed 2 redundant places. [2022-12-13 20:29:15,199 INFO L231 Difference]: Finished difference. Result has 158 places, 324 transitions, 5419 flow [2022-12-13 20:29:15,199 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=4554, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5419, PETRI_PLACES=158, PETRI_TRANSITIONS=324} [2022-12-13 20:29:15,199 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 120 predicate places. [2022-12-13 20:29:15,199 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 324 transitions, 5419 flow [2022-12-13 20:29:15,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 131.9090909090909) internal successors, (1451), 11 states have internal predecessors, (1451), 0 states have call successors, (0), 0 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 20:29:15,200 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:15,200 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:15,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 20:29:15,200 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:29:15,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:15,200 INFO L85 PathProgramCache]: Analyzing trace with hash -533775508, now seen corresponding path program 1 times [2022-12-13 20:29:15,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:15,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039599883] [2022-12-13 20:29:15,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:15,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:15,603 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 20:29:15,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:15,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039599883] [2022-12-13 20:29:15,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039599883] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:15,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:15,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:29:15,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185823894] [2022-12-13 20:29:15,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:15,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:29:15,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:15,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:29:15,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:29:15,955 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 297 [2022-12-13 20:29:15,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 324 transitions, 5419 flow. Second operand has 11 states, 11 states have (on average 131.9090909090909) internal successors, (1451), 11 states have internal predecessors, (1451), 0 states have call successors, (0), 0 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 20:29:15,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:15,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 297 [2022-12-13 20:29:15,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:16,825 INFO L130 PetriNetUnfolder]: 1824/3285 cut-off events. [2022-12-13 20:29:16,826 INFO L131 PetriNetUnfolder]: For 45912/45912 co-relation queries the response was YES. [2022-12-13 20:29:16,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22740 conditions, 3285 events. 1824/3285 cut-off events. For 45912/45912 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 21186 event pairs, 769 based on Foata normal form. 12/3143 useless extension candidates. Maximal degree in co-relation 22390. Up to 2978 conditions per place. [2022-12-13 20:29:16,843 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 242 selfloop transitions, 110 changer transitions 0/354 dead transitions. [2022-12-13 20:29:16,843 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 354 transitions, 6567 flow [2022-12-13 20:29:16,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 20:29:16,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 20:29:16,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1112 transitions. [2022-12-13 20:29:16,845 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.468013468013468 [2022-12-13 20:29:16,845 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1112 transitions. [2022-12-13 20:29:16,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1112 transitions. [2022-12-13 20:29:16,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:16,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1112 transitions. [2022-12-13 20:29:16,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 139.0) internal successors, (1112), 8 states have internal predecessors, (1112), 0 states have call successors, (0), 0 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 20:29:16,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 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 20:29:16,847 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 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 20:29:16,847 INFO L175 Difference]: Start difference. First operand has 158 places, 324 transitions, 5419 flow. Second operand 8 states and 1112 transitions. [2022-12-13 20:29:16,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 354 transitions, 6567 flow [2022-12-13 20:29:16,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 354 transitions, 6426 flow, removed 50 selfloop flow, removed 5 redundant places. [2022-12-13 20:29:16,975 INFO L231 Difference]: Finished difference. Result has 163 places, 349 transitions, 6084 flow [2022-12-13 20:29:16,975 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=5278, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6084, PETRI_PLACES=163, PETRI_TRANSITIONS=349} [2022-12-13 20:29:16,976 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 125 predicate places. [2022-12-13 20:29:16,976 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 349 transitions, 6084 flow [2022-12-13 20:29:16,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 131.9090909090909) internal successors, (1451), 11 states have internal predecessors, (1451), 0 states have call successors, (0), 0 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 20:29:16,976 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:16,976 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:16,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 20:29:16,976 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 20:29:16,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:16,977 INFO L85 PathProgramCache]: Analyzing trace with hash -520087940, now seen corresponding path program 1 times [2022-12-13 20:29:16,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:16,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421405359] [2022-12-13 20:29:16,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:16,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:17,201 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 20:29:17,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:17,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421405359] [2022-12-13 20:29:17,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421405359] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:17,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:17,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 20:29:17,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281192762] [2022-12-13 20:29:17,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:17,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:29:17,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:17,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:29:17,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:29:17,378 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 297 [2022-12-13 20:29:17,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 349 transitions, 6084 flow. Second operand has 7 states, 7 states have (on average 144.57142857142858) internal successors, (1012), 7 states have internal predecessors, (1012), 0 states have call successors, (0), 0 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 20:29:17,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:17,379 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 297 [2022-12-13 20:29:17,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:18,502 INFO L130 PetriNetUnfolder]: 2454/4507 cut-off events. [2022-12-13 20:29:18,502 INFO L131 PetriNetUnfolder]: For 70938/70977 co-relation queries the response was YES. [2022-12-13 20:29:18,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32114 conditions, 4507 events. 2454/4507 cut-off events. For 70938/70977 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 32038 event pairs, 629 based on Foata normal form. 2/4232 useless extension candidates. Maximal degree in co-relation 31744. Up to 1739 conditions per place. [2022-12-13 20:29:18,528 INFO L137 encePairwiseOnDemand]: 286/297 looper letters, 295 selfloop transitions, 118 changer transitions 7/476 dead transitions. [2022-12-13 20:29:18,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 476 transitions, 8600 flow [2022-12-13 20:29:18,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 20:29:18,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 20:29:18,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1380 transitions. [2022-12-13 20:29:18,530 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5162738496071829 [2022-12-13 20:29:18,530 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1380 transitions. [2022-12-13 20:29:18,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1380 transitions. [2022-12-13 20:29:18,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:18,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1380 transitions. [2022-12-13 20:29:18,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 153.33333333333334) internal successors, (1380), 9 states have internal predecessors, (1380), 0 states have call successors, (0), 0 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 20:29:18,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 297.0) internal successors, (2970), 10 states have internal predecessors, (2970), 0 states have call successors, (0), 0 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 20:29:18,533 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 297.0) internal successors, (2970), 10 states have internal predecessors, (2970), 0 states have call successors, (0), 0 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 20:29:18,533 INFO L175 Difference]: Start difference. First operand has 163 places, 349 transitions, 6084 flow. Second operand 9 states and 1380 transitions. [2022-12-13 20:29:18,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 476 transitions, 8600 flow [2022-12-13 20:29:18,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 476 transitions, 8476 flow, removed 48 selfloop flow, removed 3 redundant places. [2022-12-13 20:29:18,716 INFO L231 Difference]: Finished difference. Result has 172 places, 381 transitions, 6954 flow [2022-12-13 20:29:18,716 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=5960, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6954, PETRI_PLACES=172, PETRI_TRANSITIONS=381} [2022-12-13 20:29:18,716 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 134 predicate places. [2022-12-13 20:29:18,716 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 381 transitions, 6954 flow [2022-12-13 20:29:18,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 144.57142857142858) internal successors, (1012), 7 states have internal predecessors, (1012), 0 states have call successors, (0), 0 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 20:29:18,716 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:18,716 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:18,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 20:29:18,717 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:29:18,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:18,717 INFO L85 PathProgramCache]: Analyzing trace with hash -523575439, now seen corresponding path program 1 times [2022-12-13 20:29:18,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:18,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709504432] [2022-12-13 20:29:18,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:18,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:18,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:19,143 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 20:29:19,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:19,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709504432] [2022-12-13 20:29:19,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709504432] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:19,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:19,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:29:19,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078571366] [2022-12-13 20:29:19,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:19,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:29:19,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:19,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:29:19,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:29:19,619 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 297 [2022-12-13 20:29:19,620 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 381 transitions, 6954 flow. Second operand has 12 states, 12 states have (on average 133.91666666666666) internal successors, (1607), 12 states have internal predecessors, (1607), 0 states have call successors, (0), 0 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 20:29:19,620 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:19,620 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 297 [2022-12-13 20:29:19,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:21,277 INFO L130 PetriNetUnfolder]: 2574/4720 cut-off events. [2022-12-13 20:29:21,278 INFO L131 PetriNetUnfolder]: For 116551/116551 co-relation queries the response was YES. [2022-12-13 20:29:21,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35182 conditions, 4720 events. 2574/4720 cut-off events. For 116551/116551 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 33469 event pairs, 973 based on Foata normal form. 4/4721 useless extension candidates. Maximal degree in co-relation 34793. Up to 4046 conditions per place. [2022-12-13 20:29:21,332 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 326 selfloop transitions, 124 changer transitions 6/458 dead transitions. [2022-12-13 20:29:21,332 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 458 transitions, 9098 flow [2022-12-13 20:29:21,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 20:29:21,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-13 20:29:21,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2633 transitions. [2022-12-13 20:29:21,335 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46659578238525606 [2022-12-13 20:29:21,335 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2633 transitions. [2022-12-13 20:29:21,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2633 transitions. [2022-12-13 20:29:21,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:21,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2633 transitions. [2022-12-13 20:29:21,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 138.57894736842104) internal successors, (2633), 19 states have internal predecessors, (2633), 0 states have call successors, (0), 0 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 20:29:21,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 297.0) internal successors, (5940), 20 states have internal predecessors, (5940), 0 states have call successors, (0), 0 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 20:29:21,341 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 297.0) internal successors, (5940), 20 states have internal predecessors, (5940), 0 states have call successors, (0), 0 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 20:29:21,341 INFO L175 Difference]: Start difference. First operand has 172 places, 381 transitions, 6954 flow. Second operand 19 states and 2633 transitions. [2022-12-13 20:29:21,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 458 transitions, 9098 flow [2022-12-13 20:29:21,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 458 transitions, 9037 flow, removed 15 selfloop flow, removed 3 redundant places. [2022-12-13 20:29:21,587 INFO L231 Difference]: Finished difference. Result has 195 places, 425 transitions, 8193 flow [2022-12-13 20:29:21,588 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=6894, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=8193, PETRI_PLACES=195, PETRI_TRANSITIONS=425} [2022-12-13 20:29:21,588 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 157 predicate places. [2022-12-13 20:29:21,588 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 425 transitions, 8193 flow [2022-12-13 20:29:21,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 133.91666666666666) internal successors, (1607), 12 states have internal predecessors, (1607), 0 states have call successors, (0), 0 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 20:29:21,588 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:21,588 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:21,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 20:29:21,589 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 20:29:21,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:21,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1756647343, now seen corresponding path program 2 times [2022-12-13 20:29:21,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:21,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253076323] [2022-12-13 20:29:21,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:21,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:21,829 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 20:29:21,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:21,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253076323] [2022-12-13 20:29:21,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253076323] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:21,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:21,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 20:29:21,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314186679] [2022-12-13 20:29:21,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:21,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:29:21,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:21,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:29:21,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:29:21,857 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 297 [2022-12-13 20:29:21,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 425 transitions, 8193 flow. Second operand has 7 states, 7 states have (on average 146.57142857142858) internal successors, (1026), 7 states have internal predecessors, (1026), 0 states have call successors, (0), 0 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 20:29:21,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:21,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 297 [2022-12-13 20:29:21,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:22,746 INFO L130 PetriNetUnfolder]: 1790/3455 cut-off events. [2022-12-13 20:29:22,746 INFO L131 PetriNetUnfolder]: For 92019/92065 co-relation queries the response was YES. [2022-12-13 20:29:22,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26613 conditions, 3455 events. 1790/3455 cut-off events. For 92019/92065 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 24650 event pairs, 473 based on Foata normal form. 52/3484 useless extension candidates. Maximal degree in co-relation 25852. Up to 2036 conditions per place. [2022-12-13 20:29:22,767 INFO L137 encePairwiseOnDemand]: 290/297 looper letters, 281 selfloop transitions, 21 changer transitions 18/368 dead transitions. [2022-12-13 20:29:22,767 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 368 transitions, 7338 flow [2022-12-13 20:29:22,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:29:22,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:29:22,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 919 transitions. [2022-12-13 20:29:22,769 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5157126823793491 [2022-12-13 20:29:22,769 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 919 transitions. [2022-12-13 20:29:22,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 919 transitions. [2022-12-13 20:29:22,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:22,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 919 transitions. [2022-12-13 20:29:22,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 153.16666666666666) internal successors, (919), 6 states have internal predecessors, (919), 0 states have call successors, (0), 0 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 20:29:22,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 0 states have call successors, (0), 0 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 20:29:22,772 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 0 states have call successors, (0), 0 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 20:29:22,772 INFO L175 Difference]: Start difference. First operand has 195 places, 425 transitions, 8193 flow. Second operand 6 states and 919 transitions. [2022-12-13 20:29:22,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 368 transitions, 7338 flow [2022-12-13 20:29:22,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 368 transitions, 6871 flow, removed 187 selfloop flow, removed 13 redundant places. [2022-12-13 20:29:22,969 INFO L231 Difference]: Finished difference. Result has 176 places, 316 transitions, 5501 flow [2022-12-13 20:29:22,969 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=5503, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5501, PETRI_PLACES=176, PETRI_TRANSITIONS=316} [2022-12-13 20:29:22,969 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 138 predicate places. [2022-12-13 20:29:22,970 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 316 transitions, 5501 flow [2022-12-13 20:29:22,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 146.57142857142858) internal successors, (1026), 7 states have internal predecessors, (1026), 0 states have call successors, (0), 0 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 20:29:22,970 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:22,970 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:22,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 20:29:22,970 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:29:22,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:22,970 INFO L85 PathProgramCache]: Analyzing trace with hash 894642458, now seen corresponding path program 2 times [2022-12-13 20:29:22,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:22,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915431815] [2022-12-13 20:29:22,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:22,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:23,217 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 20:29:23,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:23,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915431815] [2022-12-13 20:29:23,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915431815] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:23,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:23,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 20:29:23,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68614810] [2022-12-13 20:29:23,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:23,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:29:23,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:23,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:29:23,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:29:23,409 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 297 [2022-12-13 20:29:23,411 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 316 transitions, 5501 flow. Second operand has 7 states, 7 states have (on average 144.57142857142858) internal successors, (1012), 7 states have internal predecessors, (1012), 0 states have call successors, (0), 0 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 20:29:23,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:23,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 297 [2022-12-13 20:29:23,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:24,612 INFO L130 PetriNetUnfolder]: 2526/4926 cut-off events. [2022-12-13 20:29:24,612 INFO L131 PetriNetUnfolder]: For 102506/102597 co-relation queries the response was YES. [2022-12-13 20:29:24,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34648 conditions, 4926 events. 2526/4926 cut-off events. For 102506/102597 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 37941 event pairs, 586 based on Foata normal form. 80/4945 useless extension candidates. Maximal degree in co-relation 34236. Up to 1510 conditions per place. [2022-12-13 20:29:24,643 INFO L137 encePairwiseOnDemand]: 286/297 looper letters, 276 selfloop transitions, 123 changer transitions 5/452 dead transitions. [2022-12-13 20:29:24,643 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 452 transitions, 8221 flow [2022-12-13 20:29:24,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 20:29:24,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 20:29:24,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1226 transitions. [2022-12-13 20:29:24,644 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.515993265993266 [2022-12-13 20:29:24,644 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1226 transitions. [2022-12-13 20:29:24,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1226 transitions. [2022-12-13 20:29:24,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:24,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1226 transitions. [2022-12-13 20:29:24,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 153.25) internal successors, (1226), 8 states have internal predecessors, (1226), 0 states have call successors, (0), 0 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 20:29:24,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 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 20:29:24,674 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 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 20:29:24,674 INFO L175 Difference]: Start difference. First operand has 176 places, 316 transitions, 5501 flow. Second operand 8 states and 1226 transitions. [2022-12-13 20:29:24,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 452 transitions, 8221 flow [2022-12-13 20:29:24,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 452 transitions, 8171 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-12-13 20:29:24,855 INFO L231 Difference]: Finished difference. Result has 181 places, 353 transitions, 6648 flow [2022-12-13 20:29:24,855 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=5457, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6648, PETRI_PLACES=181, PETRI_TRANSITIONS=353} [2022-12-13 20:29:24,855 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 143 predicate places. [2022-12-13 20:29:24,855 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 353 transitions, 6648 flow [2022-12-13 20:29:24,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 144.57142857142858) internal successors, (1012), 7 states have internal predecessors, (1012), 0 states have call successors, (0), 0 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 20:29:24,856 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:24,856 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:24,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 20:29:24,856 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:29:24,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:24,856 INFO L85 PathProgramCache]: Analyzing trace with hash 797298432, now seen corresponding path program 1 times [2022-12-13 20:29:24,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:24,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199862707] [2022-12-13 20:29:24,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:24,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:25,169 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 20:29:25,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:25,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199862707] [2022-12-13 20:29:25,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199862707] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:25,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:25,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:29:25,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117820100] [2022-12-13 20:29:25,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:25,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:29:25,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:25,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:29:25,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:29:25,534 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 297 [2022-12-13 20:29:25,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 353 transitions, 6648 flow. Second operand has 10 states, 10 states have (on average 136.1) internal successors, (1361), 10 states have internal predecessors, (1361), 0 states have call successors, (0), 0 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 20:29:25,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:25,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 297 [2022-12-13 20:29:25,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:27,580 INFO L130 PetriNetUnfolder]: 3431/6795 cut-off events. [2022-12-13 20:29:27,580 INFO L131 PetriNetUnfolder]: For 150128/150128 co-relation queries the response was YES. [2022-12-13 20:29:27,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49112 conditions, 6795 events. 3431/6795 cut-off events. For 150128/150128 co-relation queries the response was YES. Maximal size of possible extension queue 562. Compared 56113 event pairs, 1361 based on Foata normal form. 22/6816 useless extension candidates. Maximal degree in co-relation 48840. Up to 4473 conditions per place. [2022-12-13 20:29:27,617 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 350 selfloop transitions, 97 changer transitions 110/559 dead transitions. [2022-12-13 20:29:27,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 559 transitions, 11451 flow [2022-12-13 20:29:27,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:29:27,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 20:29:27,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2418 transitions. [2022-12-13 20:29:27,620 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47890671420083186 [2022-12-13 20:29:27,620 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2418 transitions. [2022-12-13 20:29:27,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2418 transitions. [2022-12-13 20:29:27,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:27,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2418 transitions. [2022-12-13 20:29:27,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 142.23529411764707) internal successors, (2418), 17 states have internal predecessors, (2418), 0 states have call successors, (0), 0 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 20:29:27,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:29:27,625 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:29:27,625 INFO L175 Difference]: Start difference. First operand has 181 places, 353 transitions, 6648 flow. Second operand 17 states and 2418 transitions. [2022-12-13 20:29:27,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 559 transitions, 11451 flow [2022-12-13 20:29:27,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 559 transitions, 11407 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-12-13 20:29:27,975 INFO L231 Difference]: Finished difference. Result has 201 places, 389 transitions, 7769 flow [2022-12-13 20:29:27,976 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=6614, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=7769, PETRI_PLACES=201, PETRI_TRANSITIONS=389} [2022-12-13 20:29:27,976 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 163 predicate places. [2022-12-13 20:29:27,976 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 389 transitions, 7769 flow [2022-12-13 20:29:27,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.1) internal successors, (1361), 10 states have internal predecessors, (1361), 0 states have call successors, (0), 0 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 20:29:27,976 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:27,976 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:27,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 20:29:27,977 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:29:27,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:27,977 INFO L85 PathProgramCache]: Analyzing trace with hash 894642459, now seen corresponding path program 3 times [2022-12-13 20:29:27,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:27,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834791039] [2022-12-13 20:29:27,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:27,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:28,389 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 20:29:28,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:28,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834791039] [2022-12-13 20:29:28,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834791039] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:28,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:28,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:29:28,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431853005] [2022-12-13 20:29:28,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:28,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:29:28,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:28,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:29:28,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:29:28,841 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 297 [2022-12-13 20:29:28,842 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 389 transitions, 7769 flow. Second operand has 12 states, 12 states have (on average 133.91666666666666) internal successors, (1607), 12 states have internal predecessors, (1607), 0 states have call successors, (0), 0 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 20:29:28,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:28,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 297 [2022-12-13 20:29:28,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:30,908 INFO L130 PetriNetUnfolder]: 3515/7064 cut-off events. [2022-12-13 20:29:30,908 INFO L131 PetriNetUnfolder]: For 177606/177606 co-relation queries the response was YES. [2022-12-13 20:29:30,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53467 conditions, 7064 events. 3515/7064 cut-off events. For 177606/177606 co-relation queries the response was YES. Maximal size of possible extension queue 584. Compared 59609 event pairs, 1547 based on Foata normal form. 14/7077 useless extension candidates. Maximal degree in co-relation 53203. Up to 5512 conditions per place. [2022-12-13 20:29:30,953 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 351 selfloop transitions, 97 changer transitions 22/472 dead transitions. [2022-12-13 20:29:30,953 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 472 transitions, 10231 flow [2022-12-13 20:29:30,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 20:29:30,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 20:29:30,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1825 transitions. [2022-12-13 20:29:30,955 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47267547267547266 [2022-12-13 20:29:30,955 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1825 transitions. [2022-12-13 20:29:30,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1825 transitions. [2022-12-13 20:29:30,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:30,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1825 transitions. [2022-12-13 20:29:30,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 140.3846153846154) internal successors, (1825), 13 states have internal predecessors, (1825), 0 states have call successors, (0), 0 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 20:29:30,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:29:30,958 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:29:30,959 INFO L175 Difference]: Start difference. First operand has 201 places, 389 transitions, 7769 flow. Second operand 13 states and 1825 transitions. [2022-12-13 20:29:30,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 472 transitions, 10231 flow [2022-12-13 20:29:31,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 472 transitions, 10047 flow, removed 79 selfloop flow, removed 5 redundant places. [2022-12-13 20:29:31,452 INFO L231 Difference]: Finished difference. Result has 212 places, 409 transitions, 8402 flow [2022-12-13 20:29:31,452 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=7628, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8402, PETRI_PLACES=212, PETRI_TRANSITIONS=409} [2022-12-13 20:29:31,453 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 174 predicate places. [2022-12-13 20:29:31,453 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 409 transitions, 8402 flow [2022-12-13 20:29:31,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 133.91666666666666) internal successors, (1607), 12 states have internal predecessors, (1607), 0 states have call successors, (0), 0 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 20:29:31,453 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:31,453 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:31,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 20:29:31,453 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 20:29:31,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:31,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1098355239, now seen corresponding path program 4 times [2022-12-13 20:29:31,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:31,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524470309] [2022-12-13 20:29:31,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:31,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:31,758 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 20:29:31,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:31,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524470309] [2022-12-13 20:29:31,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524470309] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:31,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:31,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:29:31,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463664084] [2022-12-13 20:29:31,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:31,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:29:31,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:31,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:29:31,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:29:32,058 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 297 [2022-12-13 20:29:32,060 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 409 transitions, 8402 flow. Second operand has 10 states, 10 states have (on average 136.1) internal successors, (1361), 10 states have internal predecessors, (1361), 0 states have call successors, (0), 0 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 20:29:32,060 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:32,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 297 [2022-12-13 20:29:32,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:34,418 INFO L130 PetriNetUnfolder]: 4120/8316 cut-off events. [2022-12-13 20:29:34,419 INFO L131 PetriNetUnfolder]: For 229114/229114 co-relation queries the response was YES. [2022-12-13 20:29:34,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64728 conditions, 8316 events. 4120/8316 cut-off events. For 229114/229114 co-relation queries the response was YES. Maximal size of possible extension queue 676. Compared 72428 event pairs, 1875 based on Foata normal form. 16/8330 useless extension candidates. Maximal degree in co-relation 64435. Up to 5783 conditions per place. [2022-12-13 20:29:34,481 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 420 selfloop transitions, 139 changer transitions 34/595 dead transitions. [2022-12-13 20:29:34,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 595 transitions, 13187 flow [2022-12-13 20:29:34,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:29:34,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 20:29:34,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2285 transitions. [2022-12-13 20:29:34,485 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48085016835016836 [2022-12-13 20:29:34,485 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2285 transitions. [2022-12-13 20:29:34,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2285 transitions. [2022-12-13 20:29:34,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:34,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2285 transitions. [2022-12-13 20:29:34,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 142.8125) internal successors, (2285), 16 states have internal predecessors, (2285), 0 states have call successors, (0), 0 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 20:29:34,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:29:34,492 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:29:34,492 INFO L175 Difference]: Start difference. First operand has 212 places, 409 transitions, 8402 flow. Second operand 16 states and 2285 transitions. [2022-12-13 20:29:34,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 595 transitions, 13187 flow [2022-12-13 20:29:35,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 595 transitions, 13072 flow, removed 35 selfloop flow, removed 5 redundant places. [2022-12-13 20:29:35,161 INFO L231 Difference]: Finished difference. Result has 229 places, 468 transitions, 10156 flow [2022-12-13 20:29:35,161 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=8317, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=10156, PETRI_PLACES=229, PETRI_TRANSITIONS=468} [2022-12-13 20:29:35,162 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 191 predicate places. [2022-12-13 20:29:35,162 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 468 transitions, 10156 flow [2022-12-13 20:29:35,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.1) internal successors, (1361), 10 states have internal predecessors, (1361), 0 states have call successors, (0), 0 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 20:29:35,162 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:35,162 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:35,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 20:29:35,163 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 20:29:35,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:35,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1094867738, now seen corresponding path program 3 times [2022-12-13 20:29:35,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:35,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806020607] [2022-12-13 20:29:35,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:35,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:35,487 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 20:29:35,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:35,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806020607] [2022-12-13 20:29:35,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806020607] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:35,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:35,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:29:35,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080085126] [2022-12-13 20:29:35,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:35,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 20:29:35,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:35,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 20:29:35,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:29:35,715 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 297 [2022-12-13 20:29:35,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 468 transitions, 10156 flow. Second operand has 9 states, 9 states have (on average 136.22222222222223) internal successors, (1226), 9 states have internal predecessors, (1226), 0 states have call successors, (0), 0 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 20:29:35,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:35,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 297 [2022-12-13 20:29:35,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:38,964 INFO L130 PetriNetUnfolder]: 5541/11363 cut-off events. [2022-12-13 20:29:38,964 INFO L131 PetriNetUnfolder]: For 387336/387336 co-relation queries the response was YES. [2022-12-13 20:29:39,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93627 conditions, 11363 events. 5541/11363 cut-off events. For 387336/387336 co-relation queries the response was YES. Maximal size of possible extension queue 975. Compared 106421 event pairs, 1313 based on Foata normal form. 81/11439 useless extension candidates. Maximal degree in co-relation 93317. Up to 3360 conditions per place. [2022-12-13 20:29:39,061 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 361 selfloop transitions, 327 changer transitions 26/716 dead transitions. [2022-12-13 20:29:39,061 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 716 transitions, 16629 flow [2022-12-13 20:29:39,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 20:29:39,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 20:29:39,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1894 transitions. [2022-12-13 20:29:39,064 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4905464905464905 [2022-12-13 20:29:39,064 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1894 transitions. [2022-12-13 20:29:39,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1894 transitions. [2022-12-13 20:29:39,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:39,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1894 transitions. [2022-12-13 20:29:39,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 145.69230769230768) internal successors, (1894), 13 states have internal predecessors, (1894), 0 states have call successors, (0), 0 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 20:29:39,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:29:39,070 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:29:39,070 INFO L175 Difference]: Start difference. First operand has 229 places, 468 transitions, 10156 flow. Second operand 13 states and 1894 transitions. [2022-12-13 20:29:39,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 716 transitions, 16629 flow [2022-12-13 20:29:40,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 716 transitions, 16423 flow, removed 85 selfloop flow, removed 5 redundant places. [2022-12-13 20:29:40,311 INFO L231 Difference]: Finished difference. Result has 244 places, 587 transitions, 14315 flow [2022-12-13 20:29:40,312 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=10000, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=216, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=14315, PETRI_PLACES=244, PETRI_TRANSITIONS=587} [2022-12-13 20:29:40,312 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 206 predicate places. [2022-12-13 20:29:40,312 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 587 transitions, 14315 flow [2022-12-13 20:29:40,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.22222222222223) internal successors, (1226), 9 states have internal predecessors, (1226), 0 states have call successors, (0), 0 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 20:29:40,312 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:40,312 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:40,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 20:29:40,313 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:29:40,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:40,313 INFO L85 PathProgramCache]: Analyzing trace with hash -227420956, now seen corresponding path program 1 times [2022-12-13 20:29:40,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:40,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856251754] [2022-12-13 20:29:40,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:40,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:40,972 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 20:29:40,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:40,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856251754] [2022-12-13 20:29:40,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856251754] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:40,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:40,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:29:40,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210259896] [2022-12-13 20:29:40,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:40,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:29:40,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:40,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:29:40,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:29:41,647 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2022-12-13 20:29:41,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 587 transitions, 14315 flow. Second operand has 12 states, 12 states have (on average 129.91666666666666) internal successors, (1559), 12 states have internal predecessors, (1559), 0 states have call successors, (0), 0 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 20:29:41,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:41,648 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2022-12-13 20:29:41,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:45,690 INFO L130 PetriNetUnfolder]: 5204/10752 cut-off events. [2022-12-13 20:29:45,690 INFO L131 PetriNetUnfolder]: For 484086/484086 co-relation queries the response was YES. [2022-12-13 20:29:45,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94868 conditions, 10752 events. 5204/10752 cut-off events. For 484086/484086 co-relation queries the response was YES. Maximal size of possible extension queue 909. Compared 100695 event pairs, 2415 based on Foata normal form. 275/11026 useless extension candidates. Maximal degree in co-relation 94464. Up to 8740 conditions per place. [2022-12-13 20:29:45,772 INFO L137 encePairwiseOnDemand]: 280/297 looper letters, 461 selfloop transitions, 268 changer transitions 9/740 dead transitions. [2022-12-13 20:29:45,772 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 740 transitions, 18586 flow [2022-12-13 20:29:45,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 20:29:45,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-13 20:29:45,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3133 transitions. [2022-12-13 20:29:45,776 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4586444151661543 [2022-12-13 20:29:45,776 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3133 transitions. [2022-12-13 20:29:45,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3133 transitions. [2022-12-13 20:29:45,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:45,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3133 transitions. [2022-12-13 20:29:45,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 136.2173913043478) internal successors, (3133), 23 states have internal predecessors, (3133), 0 states have call successors, (0), 0 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 20:29:45,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 297.0) internal successors, (7128), 24 states have internal predecessors, (7128), 0 states have call successors, (0), 0 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 20:29:45,783 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 297.0) internal successors, (7128), 24 states have internal predecessors, (7128), 0 states have call successors, (0), 0 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 20:29:45,783 INFO L175 Difference]: Start difference. First operand has 244 places, 587 transitions, 14315 flow. Second operand 23 states and 3133 transitions. [2022-12-13 20:29:45,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 740 transitions, 18586 flow [2022-12-13 20:29:47,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 740 transitions, 18089 flow, removed 233 selfloop flow, removed 4 redundant places. [2022-12-13 20:29:47,754 INFO L231 Difference]: Finished difference. Result has 269 places, 660 transitions, 16344 flow [2022-12-13 20:29:47,754 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=13435, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=182, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=16344, PETRI_PLACES=269, PETRI_TRANSITIONS=660} [2022-12-13 20:29:47,755 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 231 predicate places. [2022-12-13 20:29:47,755 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 660 transitions, 16344 flow [2022-12-13 20:29:47,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 129.91666666666666) internal successors, (1559), 12 states have internal predecessors, (1559), 0 states have call successors, (0), 0 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 20:29:47,755 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:47,755 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:47,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 20:29:47,755 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:29:47,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:47,755 INFO L85 PathProgramCache]: Analyzing trace with hash 408323677, now seen corresponding path program 1 times [2022-12-13 20:29:47,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:47,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984901424] [2022-12-13 20:29:47,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:47,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:48,116 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 20:29:48,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:48,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984901424] [2022-12-13 20:29:48,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984901424] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:48,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:48,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:29:48,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079401312] [2022-12-13 20:29:48,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:48,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:29:48,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:48,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:29:48,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:29:48,618 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:29:48,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 660 transitions, 16344 flow. Second operand has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 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 20:29:48,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:48,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:29:48,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:52,523 INFO L130 PetriNetUnfolder]: 5066/10484 cut-off events. [2022-12-13 20:29:52,523 INFO L131 PetriNetUnfolder]: For 430745/430745 co-relation queries the response was YES. [2022-12-13 20:29:52,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92968 conditions, 10484 events. 5066/10484 cut-off events. For 430745/430745 co-relation queries the response was YES. Maximal size of possible extension queue 887. Compared 98073 event pairs, 1849 based on Foata normal form. 64/10548 useless extension candidates. Maximal degree in co-relation 92545. Up to 5657 conditions per place. [2022-12-13 20:29:52,609 INFO L137 encePairwiseOnDemand]: 279/297 looper letters, 575 selfloop transitions, 250 changer transitions 6/833 dead transitions. [2022-12-13 20:29:52,609 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 833 transitions, 21753 flow [2022-12-13 20:29:52,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 20:29:52,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 20:29:52,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1400 transitions. [2022-12-13 20:29:52,612 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4713804713804714 [2022-12-13 20:29:52,612 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1400 transitions. [2022-12-13 20:29:52,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1400 transitions. [2022-12-13 20:29:52,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:52,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1400 transitions. [2022-12-13 20:29:52,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 140.0) internal successors, (1400), 10 states have internal predecessors, (1400), 0 states have call successors, (0), 0 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 20:29:52,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 297.0) internal successors, (3267), 11 states have internal predecessors, (3267), 0 states have call successors, (0), 0 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 20:29:52,616 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 297.0) internal successors, (3267), 11 states have internal predecessors, (3267), 0 states have call successors, (0), 0 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 20:29:52,616 INFO L175 Difference]: Start difference. First operand has 269 places, 660 transitions, 16344 flow. Second operand 10 states and 1400 transitions. [2022-12-13 20:29:52,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 833 transitions, 21753 flow [2022-12-13 20:29:54,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 833 transitions, 20981 flow, removed 306 selfloop flow, removed 7 redundant places. [2022-12-13 20:29:54,394 INFO L231 Difference]: Finished difference. Result has 275 places, 693 transitions, 17206 flow [2022-12-13 20:29:54,394 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=15680, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=659, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=219, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=17206, PETRI_PLACES=275, PETRI_TRANSITIONS=693} [2022-12-13 20:29:54,395 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 237 predicate places. [2022-12-13 20:29:54,395 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 693 transitions, 17206 flow [2022-12-13 20:29:54,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 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 20:29:54,395 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:29:54,396 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:29:54,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 20:29:54,396 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:29:54,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:29:54,396 INFO L85 PathProgramCache]: Analyzing trace with hash -896972224, now seen corresponding path program 2 times [2022-12-13 20:29:54,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:29:54,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989313157] [2022-12-13 20:29:54,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:29:54,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:29:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:29:54,749 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 20:29:54,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:29:54,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989313157] [2022-12-13 20:29:54,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989313157] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:29:54,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:29:54,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:29:54,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870106182] [2022-12-13 20:29:54,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:29:54,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:29:54,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:29:54,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:29:54,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:29:55,032 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 297 [2022-12-13 20:29:55,033 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 693 transitions, 17206 flow. Second operand has 11 states, 11 states have (on average 134.0) internal successors, (1474), 11 states have internal predecessors, (1474), 0 states have call successors, (0), 0 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 20:29:55,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:55,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 297 [2022-12-13 20:29:55,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:58,823 INFO L130 PetriNetUnfolder]: 5187/10870 cut-off events. [2022-12-13 20:29:58,823 INFO L131 PetriNetUnfolder]: For 440121/440121 co-relation queries the response was YES. [2022-12-13 20:29:58,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97763 conditions, 10870 events. 5187/10870 cut-off events. For 440121/440121 co-relation queries the response was YES. Maximal size of possible extension queue 928. Compared 103421 event pairs, 2690 based on Foata normal form. 26/10895 useless extension candidates. Maximal degree in co-relation 97414. Up to 8945 conditions per place. [2022-12-13 20:29:58,906 INFO L137 encePairwiseOnDemand]: 281/297 looper letters, 599 selfloop transitions, 121 changer transitions 67/789 dead transitions. [2022-12-13 20:29:58,906 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 789 transitions, 20858 flow [2022-12-13 20:29:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:29:58,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 20:29:58,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2236 transitions. [2022-12-13 20:29:58,909 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47053872053872053 [2022-12-13 20:29:58,909 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2236 transitions. [2022-12-13 20:29:58,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2236 transitions. [2022-12-13 20:29:58,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:58,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2236 transitions. [2022-12-13 20:29:58,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 139.75) internal successors, (2236), 16 states have internal predecessors, (2236), 0 states have call successors, (0), 0 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 20:29:58,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:29:58,914 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:29:58,914 INFO L175 Difference]: Start difference. First operand has 275 places, 693 transitions, 17206 flow. Second operand 16 states and 2236 transitions. [2022-12-13 20:29:58,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 789 transitions, 20858 flow [2022-12-13 20:30:00,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 789 transitions, 20536 flow, removed 71 selfloop flow, removed 5 redundant places. [2022-12-13 20:30:00,765 INFO L231 Difference]: Finished difference. Result has 288 places, 698 transitions, 17280 flow [2022-12-13 20:30:00,765 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=16908, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=693, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=575, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=17280, PETRI_PLACES=288, PETRI_TRANSITIONS=698} [2022-12-13 20:30:00,766 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 250 predicate places. [2022-12-13 20:30:00,766 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 698 transitions, 17280 flow [2022-12-13 20:30:00,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 134.0) internal successors, (1474), 11 states have internal predecessors, (1474), 0 states have call successors, (0), 0 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 20:30:00,766 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:30:00,766 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:30:00,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 20:30:00,767 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 20:30:00,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:30:00,767 INFO L85 PathProgramCache]: Analyzing trace with hash 606329976, now seen corresponding path program 1 times [2022-12-13 20:30:00,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:30:00,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132801152] [2022-12-13 20:30:00,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:30:00,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:30:00,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:01,062 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 20:30:01,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:30:01,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132801152] [2022-12-13 20:30:01,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132801152] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:30:01,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:30:01,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:30:01,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777776932] [2022-12-13 20:30:01,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:30:01,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:30:01,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:30:01,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:30:01,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:30:01,257 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 297 [2022-12-13 20:30:01,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 698 transitions, 17280 flow. Second operand has 7 states, 7 states have (on average 135.57142857142858) internal successors, (949), 7 states have internal predecessors, (949), 0 states have call successors, (0), 0 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 20:30:01,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:30:01,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 297 [2022-12-13 20:30:01,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:30:05,634 INFO L130 PetriNetUnfolder]: 6004/12736 cut-off events. [2022-12-13 20:30:05,634 INFO L131 PetriNetUnfolder]: For 591192/591192 co-relation queries the response was YES. [2022-12-13 20:30:05,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113494 conditions, 12736 events. 6004/12736 cut-off events. For 591192/591192 co-relation queries the response was YES. Maximal size of possible extension queue 1129. Compared 125512 event pairs, 2114 based on Foata normal form. 338/13074 useless extension candidates. Maximal degree in co-relation 113165. Up to 6193 conditions per place. [2022-12-13 20:30:05,755 INFO L137 encePairwiseOnDemand]: 285/297 looper letters, 632 selfloop transitions, 278 changer transitions 13/925 dead transitions. [2022-12-13 20:30:05,755 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 925 transitions, 24558 flow [2022-12-13 20:30:05,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:30:05,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 20:30:05,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1016 transitions. [2022-12-13 20:30:05,757 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4886964886964887 [2022-12-13 20:30:05,757 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1016 transitions. [2022-12-13 20:30:05,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1016 transitions. [2022-12-13 20:30:05,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:30:05,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1016 transitions. [2022-12-13 20:30:05,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 145.14285714285714) internal successors, (1016), 7 states have internal predecessors, (1016), 0 states have call successors, (0), 0 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 20:30:05,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 297.0) internal successors, (2376), 8 states have internal predecessors, (2376), 0 states have call successors, (0), 0 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 20:30:05,760 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 297.0) internal successors, (2376), 8 states have internal predecessors, (2376), 0 states have call successors, (0), 0 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 20:30:05,760 INFO L175 Difference]: Start difference. First operand has 288 places, 698 transitions, 17280 flow. Second operand 7 states and 1016 transitions. [2022-12-13 20:30:05,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 925 transitions, 24558 flow [2022-12-13 20:30:08,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 925 transitions, 24394 flow, removed 56 selfloop flow, removed 8 redundant places. [2022-12-13 20:30:08,190 INFO L231 Difference]: Finished difference. Result has 289 places, 796 transitions, 20836 flow [2022-12-13 20:30:08,190 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=17078, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=696, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=20836, PETRI_PLACES=289, PETRI_TRANSITIONS=796} [2022-12-13 20:30:08,190 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 251 predicate places. [2022-12-13 20:30:08,190 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 796 transitions, 20836 flow [2022-12-13 20:30:08,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 135.57142857142858) internal successors, (949), 7 states have internal predecessors, (949), 0 states have call successors, (0), 0 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 20:30:08,191 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:30:08,191 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:30:08,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-13 20:30:08,191 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 20:30:08,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:30:08,191 INFO L85 PathProgramCache]: Analyzing trace with hash 794247102, now seen corresponding path program 3 times [2022-12-13 20:30:08,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:30:08,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482882796] [2022-12-13 20:30:08,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:30:08,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:30:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:08,639 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 20:30:08,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:30:08,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482882796] [2022-12-13 20:30:08,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482882796] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:30:08,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:30:08,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:30:08,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951652211] [2022-12-13 20:30:08,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:30:08,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:30:08,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:30:08,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:30:08,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:30:08,997 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 297 [2022-12-13 20:30:08,999 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 796 transitions, 20836 flow. Second operand has 12 states, 12 states have (on average 133.91666666666666) internal successors, (1607), 12 states have internal predecessors, (1607), 0 states have call successors, (0), 0 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 20:30:08,999 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:30:08,999 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 297 [2022-12-13 20:30:08,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:30:14,223 INFO L130 PetriNetUnfolder]: 6006/12771 cut-off events. [2022-12-13 20:30:14,223 INFO L131 PetriNetUnfolder]: For 562015/562015 co-relation queries the response was YES. [2022-12-13 20:30:14,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118740 conditions, 12771 events. 6006/12771 cut-off events. For 562015/562015 co-relation queries the response was YES. Maximal size of possible extension queue 1123. Compared 126469 event pairs, 3181 based on Foata normal form. 3/12772 useless extension candidates. Maximal degree in co-relation 118380. Up to 11304 conditions per place. [2022-12-13 20:30:14,335 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 683 selfloop transitions, 152 changer transitions 5/842 dead transitions. [2022-12-13 20:30:14,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 842 transitions, 23508 flow [2022-12-13 20:30:14,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 20:30:14,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-13 20:30:14,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2894 transitions. [2022-12-13 20:30:14,339 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46400513067179733 [2022-12-13 20:30:14,339 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2894 transitions. [2022-12-13 20:30:14,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2894 transitions. [2022-12-13 20:30:14,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:30:14,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2894 transitions. [2022-12-13 20:30:14,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 137.8095238095238) internal successors, (2894), 21 states have internal predecessors, (2894), 0 states have call successors, (0), 0 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 20:30:14,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 297.0) internal successors, (6534), 22 states have internal predecessors, (6534), 0 states have call successors, (0), 0 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 20:30:14,344 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 297.0) internal successors, (6534), 22 states have internal predecessors, (6534), 0 states have call successors, (0), 0 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 20:30:14,344 INFO L175 Difference]: Start difference. First operand has 289 places, 796 transitions, 20836 flow. Second operand 21 states and 2894 transitions. [2022-12-13 20:30:14,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 842 transitions, 23508 flow [2022-12-13 20:30:17,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 842 transitions, 23200 flow, removed 94 selfloop flow, removed 5 redundant places. [2022-12-13 20:30:17,243 INFO L231 Difference]: Finished difference. Result has 308 places, 812 transitions, 21386 flow [2022-12-13 20:30:17,244 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=20538, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=796, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=657, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=21386, PETRI_PLACES=308, PETRI_TRANSITIONS=812} [2022-12-13 20:30:17,244 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 270 predicate places. [2022-12-13 20:30:17,244 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 812 transitions, 21386 flow [2022-12-13 20:30:17,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 133.91666666666666) internal successors, (1607), 12 states have internal predecessors, (1607), 0 states have call successors, (0), 0 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 20:30:17,244 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:30:17,245 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:30:17,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-13 20:30:17,245 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 20:30:17,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:30:17,245 INFO L85 PathProgramCache]: Analyzing trace with hash 910074506, now seen corresponding path program 2 times [2022-12-13 20:30:17,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:30:17,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447115285] [2022-12-13 20:30:17,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:30:17,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:30:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:17,652 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 20:30:17,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:30:17,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447115285] [2022-12-13 20:30:17,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447115285] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:30:17,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:30:17,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:30:17,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44004967] [2022-12-13 20:30:17,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:30:17,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:30:17,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:30:17,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:30:17,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:30:18,029 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 297 [2022-12-13 20:30:18,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 812 transitions, 21386 flow. Second operand has 10 states, 10 states have (on average 133.1) internal successors, (1331), 10 states have internal predecessors, (1331), 0 states have call successors, (0), 0 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 20:30:18,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:30:18,030 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 297 [2022-12-13 20:30:18,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:30:22,854 INFO L130 PetriNetUnfolder]: 5791/12488 cut-off events. [2022-12-13 20:30:22,854 INFO L131 PetriNetUnfolder]: For 569572/569572 co-relation queries the response was YES. [2022-12-13 20:30:22,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112158 conditions, 12488 events. 5791/12488 cut-off events. For 569572/569572 co-relation queries the response was YES. Maximal size of possible extension queue 1087. Compared 124547 event pairs, 1689 based on Foata normal form. 309/12797 useless extension candidates. Maximal degree in co-relation 111704. Up to 5583 conditions per place. [2022-12-13 20:30:22,964 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 688 selfloop transitions, 244 changer transitions 12/946 dead transitions. [2022-12-13 20:30:22,965 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 946 transitions, 26363 flow [2022-12-13 20:30:22,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 20:30:22,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 20:30:22,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1275 transitions. [2022-12-13 20:30:22,967 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4769921436588103 [2022-12-13 20:30:22,967 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1275 transitions. [2022-12-13 20:30:22,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1275 transitions. [2022-12-13 20:30:22,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:30:22,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1275 transitions. [2022-12-13 20:30:22,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 141.66666666666666) internal successors, (1275), 9 states have internal predecessors, (1275), 0 states have call successors, (0), 0 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 20:30:22,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 297.0) internal successors, (2970), 10 states have internal predecessors, (2970), 0 states have call successors, (0), 0 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 20:30:22,970 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 297.0) internal successors, (2970), 10 states have internal predecessors, (2970), 0 states have call successors, (0), 0 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 20:30:22,970 INFO L175 Difference]: Start difference. First operand has 308 places, 812 transitions, 21386 flow. Second operand 9 states and 1275 transitions. [2022-12-13 20:30:22,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 946 transitions, 26363 flow [2022-12-13 20:30:26,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 946 transitions, 25813 flow, removed 161 selfloop flow, removed 10 redundant places. [2022-12-13 20:30:26,400 INFO L231 Difference]: Finished difference. Result has 310 places, 829 transitions, 22350 flow [2022-12-13 20:30:26,400 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=20432, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=796, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=556, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=22350, PETRI_PLACES=310, PETRI_TRANSITIONS=829} [2022-12-13 20:30:26,400 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 272 predicate places. [2022-12-13 20:30:26,400 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 829 transitions, 22350 flow [2022-12-13 20:30:26,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.1) internal successors, (1331), 10 states have internal predecessors, (1331), 0 states have call successors, (0), 0 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 20:30:26,401 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:30:26,401 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:30:26,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-13 20:30:26,401 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 20:30:26,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:30:26,401 INFO L85 PathProgramCache]: Analyzing trace with hash 434318106, now seen corresponding path program 3 times [2022-12-13 20:30:26,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:30:26,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133898376] [2022-12-13 20:30:26,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:30:26,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:30:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:26,763 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 20:30:26,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:30:26,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133898376] [2022-12-13 20:30:26,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133898376] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:30:26,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:30:26,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:30:26,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860012985] [2022-12-13 20:30:26,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:30:26,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:30:26,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:30:26,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:30:26,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:30:27,126 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:30:27,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 829 transitions, 22350 flow. Second operand has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 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 20:30:27,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:30:27,127 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:30:27,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:30:32,047 INFO L130 PetriNetUnfolder]: 5610/12350 cut-off events. [2022-12-13 20:30:32,047 INFO L131 PetriNetUnfolder]: For 514901/514901 co-relation queries the response was YES. [2022-12-13 20:30:32,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111907 conditions, 12350 events. 5610/12350 cut-off events. For 514901/514901 co-relation queries the response was YES. Maximal size of possible extension queue 1095. Compared 125414 event pairs, 1821 based on Foata normal form. 96/12446 useless extension candidates. Maximal degree in co-relation 111563. Up to 5694 conditions per place. [2022-12-13 20:30:32,157 INFO L137 encePairwiseOnDemand]: 279/297 looper letters, 644 selfloop transitions, 334 changer transitions 3/983 dead transitions. [2022-12-13 20:30:32,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 983 transitions, 27927 flow [2022-12-13 20:30:32,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 20:30:32,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 20:30:32,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1398 transitions. [2022-12-13 20:30:32,159 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4707070707070707 [2022-12-13 20:30:32,159 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1398 transitions. [2022-12-13 20:30:32,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1398 transitions. [2022-12-13 20:30:32,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:30:32,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1398 transitions. [2022-12-13 20:30:32,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 139.8) internal successors, (1398), 10 states have internal predecessors, (1398), 0 states have call successors, (0), 0 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 20:30:32,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 297.0) internal successors, (3267), 11 states have internal predecessors, (3267), 0 states have call successors, (0), 0 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 20:30:32,162 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 297.0) internal successors, (3267), 11 states have internal predecessors, (3267), 0 states have call successors, (0), 0 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 20:30:32,162 INFO L175 Difference]: Start difference. First operand has 310 places, 829 transitions, 22350 flow. Second operand 10 states and 1398 transitions. [2022-12-13 20:30:32,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 983 transitions, 27927 flow [2022-12-13 20:30:35,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 983 transitions, 27695 flow, removed 93 selfloop flow, removed 5 redundant places. [2022-12-13 20:30:35,278 INFO L231 Difference]: Finished difference. Result has 318 places, 873 transitions, 24449 flow [2022-12-13 20:30:35,278 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=22118, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=829, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=291, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=24449, PETRI_PLACES=318, PETRI_TRANSITIONS=873} [2022-12-13 20:30:35,279 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 280 predicate places. [2022-12-13 20:30:35,279 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 873 transitions, 24449 flow [2022-12-13 20:30:35,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 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 20:30:35,279 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:30:35,279 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:30:35,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-13 20:30:35,279 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 20:30:35,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:30:35,279 INFO L85 PathProgramCache]: Analyzing trace with hash -419611966, now seen corresponding path program 2 times [2022-12-13 20:30:35,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:30:35,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590360671] [2022-12-13 20:30:35,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:30:35,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:30:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:35,619 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 20:30:35,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:30:35,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590360671] [2022-12-13 20:30:35,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590360671] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:30:35,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:30:35,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:30:35,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42068810] [2022-12-13 20:30:35,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:30:35,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:30:35,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:30:35,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:30:35,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:30:35,966 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:30:35,967 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 873 transitions, 24449 flow. Second operand has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 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 20:30:35,967 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:30:35,967 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:30:35,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:30:41,041 INFO L130 PetriNetUnfolder]: 5590/12310 cut-off events. [2022-12-13 20:30:41,042 INFO L131 PetriNetUnfolder]: For 528012/528012 co-relation queries the response was YES. [2022-12-13 20:30:41,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116077 conditions, 12310 events. 5590/12310 cut-off events. For 528012/528012 co-relation queries the response was YES. Maximal size of possible extension queue 1079. Compared 124572 event pairs, 1569 based on Foata normal form. 24/12334 useless extension candidates. Maximal degree in co-relation 115727. Up to 5591 conditions per place. [2022-12-13 20:30:41,154 INFO L137 encePairwiseOnDemand]: 281/297 looper letters, 723 selfloop transitions, 248 changer transitions 2/975 dead transitions. [2022-12-13 20:30:41,154 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 975 transitions, 28551 flow [2022-12-13 20:30:41,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 20:30:41,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 20:30:41,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1389 transitions. [2022-12-13 20:30:41,157 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4676767676767677 [2022-12-13 20:30:41,157 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1389 transitions. [2022-12-13 20:30:41,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1389 transitions. [2022-12-13 20:30:41,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:30:41,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1389 transitions. [2022-12-13 20:30:41,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 138.9) internal successors, (1389), 10 states have internal predecessors, (1389), 0 states have call successors, (0), 0 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 20:30:41,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 297.0) internal successors, (3267), 11 states have internal predecessors, (3267), 0 states have call successors, (0), 0 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 20:30:41,160 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 297.0) internal successors, (3267), 11 states have internal predecessors, (3267), 0 states have call successors, (0), 0 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 20:30:41,160 INFO L175 Difference]: Start difference. First operand has 318 places, 873 transitions, 24449 flow. Second operand 10 states and 1389 transitions. [2022-12-13 20:30:41,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 975 transitions, 28551 flow [2022-12-13 20:30:44,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 975 transitions, 28115 flow, removed 127 selfloop flow, removed 5 redundant places. [2022-12-13 20:30:44,509 INFO L231 Difference]: Finished difference. Result has 324 places, 874 transitions, 24536 flow [2022-12-13 20:30:44,510 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=23871, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=869, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=623, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=24536, PETRI_PLACES=324, PETRI_TRANSITIONS=874} [2022-12-13 20:30:44,510 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 286 predicate places. [2022-12-13 20:30:44,510 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 874 transitions, 24536 flow [2022-12-13 20:30:44,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 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 20:30:44,510 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:30:44,510 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:30:44,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-13 20:30:44,511 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:30:44,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:30:44,511 INFO L85 PathProgramCache]: Analyzing trace with hash 436883977, now seen corresponding path program 2 times [2022-12-13 20:30:44,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:30:44,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363014248] [2022-12-13 20:30:44,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:30:44,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:30:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:44,835 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 20:30:44,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:30:44,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363014248] [2022-12-13 20:30:44,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363014248] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:30:44,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:30:44,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:30:44,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158011477] [2022-12-13 20:30:44,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:30:44,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:30:44,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:30:44,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:30:44,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:30:45,135 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:30:45,136 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 874 transitions, 24536 flow. Second operand has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 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 20:30:45,136 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:30:45,136 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:30:45,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:30:50,502 INFO L130 PetriNetUnfolder]: 5604/12329 cut-off events. [2022-12-13 20:30:50,502 INFO L131 PetriNetUnfolder]: For 557213/557213 co-relation queries the response was YES. [2022-12-13 20:30:50,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118374 conditions, 12329 events. 5604/12329 cut-off events. For 557213/557213 co-relation queries the response was YES. Maximal size of possible extension queue 1091. Compared 125078 event pairs, 1872 based on Foata normal form. 58/12387 useless extension candidates. Maximal degree in co-relation 118024. Up to 5658 conditions per place. [2022-12-13 20:30:50,621 INFO L137 encePairwiseOnDemand]: 279/297 looper letters, 657 selfloop transitions, 336 changer transitions 3/998 dead transitions. [2022-12-13 20:30:50,621 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 998 transitions, 29495 flow [2022-12-13 20:30:50,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 20:30:50,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 20:30:50,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1394 transitions. [2022-12-13 20:30:50,623 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46936026936026937 [2022-12-13 20:30:50,623 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1394 transitions. [2022-12-13 20:30:50,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1394 transitions. [2022-12-13 20:30:50,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:30:50,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1394 transitions. [2022-12-13 20:30:50,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 139.4) internal successors, (1394), 10 states have internal predecessors, (1394), 0 states have call successors, (0), 0 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 20:30:50,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 297.0) internal successors, (3267), 11 states have internal predecessors, (3267), 0 states have call successors, (0), 0 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 20:30:50,626 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 297.0) internal successors, (3267), 11 states have internal predecessors, (3267), 0 states have call successors, (0), 0 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 20:30:50,626 INFO L175 Difference]: Start difference. First operand has 324 places, 874 transitions, 24536 flow. Second operand 10 states and 1394 transitions. [2022-12-13 20:30:50,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 998 transitions, 29495 flow [2022-12-13 20:30:54,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 998 transitions, 28907 flow, removed 52 selfloop flow, removed 8 redundant places. [2022-12-13 20:30:54,211 INFO L231 Difference]: Finished difference. Result has 329 places, 888 transitions, 25602 flow [2022-12-13 20:30:54,212 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=23808, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=868, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=316, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=25602, PETRI_PLACES=329, PETRI_TRANSITIONS=888} [2022-12-13 20:30:54,212 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 291 predicate places. [2022-12-13 20:30:54,212 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 888 transitions, 25602 flow [2022-12-13 20:30:54,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 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 20:30:54,212 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:30:54,213 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:30:54,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-13 20:30:54,213 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:30:54,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:30:54,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1109157676, now seen corresponding path program 3 times [2022-12-13 20:30:54,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:30:54,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761882831] [2022-12-13 20:30:54,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:30:54,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:30:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:54,393 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 20:30:54,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:30:54,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761882831] [2022-12-13 20:30:54,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761882831] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:30:54,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:30:54,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:30:54,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631972745] [2022-12-13 20:30:54,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:30:54,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:30:54,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:30:54,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:30:54,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:30:54,416 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 297 [2022-12-13 20:30:54,417 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 888 transitions, 25602 flow. Second operand has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 0 states have call successors, (0), 0 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 20:30:54,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:30:54,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 297 [2022-12-13 20:30:54,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:30:57,065 INFO L130 PetriNetUnfolder]: 2516/6048 cut-off events. [2022-12-13 20:30:57,065 INFO L131 PetriNetUnfolder]: For 234934/234996 co-relation queries the response was YES. [2022-12-13 20:30:57,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55994 conditions, 6048 events. 2516/6048 cut-off events. For 234934/234996 co-relation queries the response was YES. Maximal size of possible extension queue 527. Compared 58481 event pairs, 794 based on Foata normal form. 103/6109 useless extension candidates. Maximal degree in co-relation 55616. Up to 2865 conditions per place. [2022-12-13 20:30:57,135 INFO L137 encePairwiseOnDemand]: 291/297 looper letters, 538 selfloop transitions, 29 changer transitions 23/645 dead transitions. [2022-12-13 20:30:57,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 645 transitions, 19220 flow [2022-12-13 20:30:57,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 20:30:57,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 20:30:57,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 768 transitions. [2022-12-13 20:30:57,137 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5171717171717172 [2022-12-13 20:30:57,137 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 768 transitions. [2022-12-13 20:30:57,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 768 transitions. [2022-12-13 20:30:57,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:30:57,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 768 transitions. [2022-12-13 20:30:57,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 153.6) internal successors, (768), 5 states have internal predecessors, (768), 0 states have call successors, (0), 0 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 20:30:57,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 297.0) internal successors, (1782), 6 states have internal predecessors, (1782), 0 states have call successors, (0), 0 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 20:30:57,140 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 297.0) internal successors, (1782), 6 states have internal predecessors, (1782), 0 states have call successors, (0), 0 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 20:30:57,140 INFO L175 Difference]: Start difference. First operand has 329 places, 888 transitions, 25602 flow. Second operand 5 states and 768 transitions. [2022-12-13 20:30:57,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 645 transitions, 19220 flow [2022-12-13 20:30:58,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 645 transitions, 18159 flow, removed 409 selfloop flow, removed 16 redundant places. [2022-12-13 20:30:58,642 INFO L231 Difference]: Finished difference. Result has 307 places, 586 transitions, 15583 flow [2022-12-13 20:30:58,642 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=15899, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=598, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=15583, PETRI_PLACES=307, PETRI_TRANSITIONS=586} [2022-12-13 20:30:58,642 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 269 predicate places. [2022-12-13 20:30:58,642 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 586 transitions, 15583 flow [2022-12-13 20:30:58,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 0 states have call successors, (0), 0 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 20:30:58,642 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:30:58,643 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:30:58,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-13 20:30:58,643 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:30:58,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:30:58,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1252525747, now seen corresponding path program 3 times [2022-12-13 20:30:58,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:30:58,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539200512] [2022-12-13 20:30:58,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:30:58,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:30:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:58,968 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 20:30:58,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:30:58,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539200512] [2022-12-13 20:30:58,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539200512] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:30:58,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:30:58,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:30:58,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804746038] [2022-12-13 20:30:58,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:30:58,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:30:58,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:30:58,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:30:58,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:30:59,373 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:30:59,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 586 transitions, 15583 flow. Second operand has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 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 20:30:59,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:30:59,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:30:59,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:01,894 INFO L130 PetriNetUnfolder]: 2484/5933 cut-off events. [2022-12-13 20:31:01,895 INFO L131 PetriNetUnfolder]: For 194303/194303 co-relation queries the response was YES. [2022-12-13 20:31:01,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53012 conditions, 5933 events. 2484/5933 cut-off events. For 194303/194303 co-relation queries the response was YES. Maximal size of possible extension queue 507. Compared 56446 event pairs, 483 based on Foata normal form. 48/5981 useless extension candidates. Maximal degree in co-relation 52471. Up to 3176 conditions per place. [2022-12-13 20:31:01,944 INFO L137 encePairwiseOnDemand]: 279/297 looper letters, 291 selfloop transitions, 317 changer transitions 7/617 dead transitions. [2022-12-13 20:31:01,944 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 617 transitions, 17130 flow [2022-12-13 20:31:01,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 20:31:01,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 20:31:01,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1513 transitions. [2022-12-13 20:31:01,946 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.463116008570554 [2022-12-13 20:31:01,946 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1513 transitions. [2022-12-13 20:31:01,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1513 transitions. [2022-12-13 20:31:01,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:01,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1513 transitions. [2022-12-13 20:31:01,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 137.54545454545453) internal successors, (1513), 11 states have internal predecessors, (1513), 0 states have call successors, (0), 0 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 20:31:01,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 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 20:31:01,949 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 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 20:31:01,949 INFO L175 Difference]: Start difference. First operand has 307 places, 586 transitions, 15583 flow. Second operand 11 states and 1513 transitions. [2022-12-13 20:31:01,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 617 transitions, 17130 flow [2022-12-13 20:31:03,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 617 transitions, 16758 flow, removed 85 selfloop flow, removed 8 redundant places. [2022-12-13 20:31:03,035 INFO L231 Difference]: Finished difference. Result has 312 places, 584 transitions, 16266 flow [2022-12-13 20:31:03,035 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=14860, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=576, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=305, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=16266, PETRI_PLACES=312, PETRI_TRANSITIONS=584} [2022-12-13 20:31:03,035 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 274 predicate places. [2022-12-13 20:31:03,035 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 584 transitions, 16266 flow [2022-12-13 20:31:03,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 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 20:31:03,035 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:03,036 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:31:03,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-13 20:31:03,036 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:31:03,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:03,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1047368125, now seen corresponding path program 1 times [2022-12-13 20:31:03,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:03,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963704177] [2022-12-13 20:31:03,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:03,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:03,255 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 20:31:03,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:03,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963704177] [2022-12-13 20:31:03,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963704177] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:03,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:03,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:31:03,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424665535] [2022-12-13 20:31:03,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:03,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 20:31:03,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:03,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 20:31:03,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:31:03,537 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 297 [2022-12-13 20:31:03,538 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 584 transitions, 16266 flow. Second operand has 8 states, 8 states have (on average 144.5) internal successors, (1156), 8 states have internal predecessors, (1156), 0 states have call successors, (0), 0 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 20:31:03,538 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:03,538 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 297 [2022-12-13 20:31:03,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:05,628 INFO L130 PetriNetUnfolder]: 2181/5322 cut-off events. [2022-12-13 20:31:05,628 INFO L131 PetriNetUnfolder]: For 193147/193184 co-relation queries the response was YES. [2022-12-13 20:31:05,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50503 conditions, 5322 events. 2181/5322 cut-off events. For 193147/193184 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 51559 event pairs, 870 based on Foata normal form. 16/5267 useless extension candidates. Maximal degree in co-relation 49764. Up to 2828 conditions per place. [2022-12-13 20:31:05,676 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 417 selfloop transitions, 187 changer transitions 5/664 dead transitions. [2022-12-13 20:31:05,676 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 664 transitions, 19199 flow [2022-12-13 20:31:05,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 20:31:05,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 20:31:05,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1509 transitions. [2022-12-13 20:31:05,679 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5080808080808081 [2022-12-13 20:31:05,679 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1509 transitions. [2022-12-13 20:31:05,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1509 transitions. [2022-12-13 20:31:05,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:05,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1509 transitions. [2022-12-13 20:31:05,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 150.9) internal successors, (1509), 10 states have internal predecessors, (1509), 0 states have call successors, (0), 0 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 20:31:05,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 297.0) internal successors, (3267), 11 states have internal predecessors, (3267), 0 states have call successors, (0), 0 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 20:31:05,684 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 297.0) internal successors, (3267), 11 states have internal predecessors, (3267), 0 states have call successors, (0), 0 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 20:31:05,684 INFO L175 Difference]: Start difference. First operand has 312 places, 584 transitions, 16266 flow. Second operand 10 states and 1509 transitions. [2022-12-13 20:31:05,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 664 transitions, 19199 flow [2022-12-13 20:31:06,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 664 transitions, 18977 flow, removed 31 selfloop flow, removed 9 redundant places. [2022-12-13 20:31:06,589 INFO L231 Difference]: Finished difference. Result has 315 places, 601 transitions, 17003 flow [2022-12-13 20:31:06,590 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=16007, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=17003, PETRI_PLACES=315, PETRI_TRANSITIONS=601} [2022-12-13 20:31:06,590 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 277 predicate places. [2022-12-13 20:31:06,590 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 601 transitions, 17003 flow [2022-12-13 20:31:06,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 144.5) internal successors, (1156), 8 states have internal predecessors, (1156), 0 states have call successors, (0), 0 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 20:31:06,590 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:06,590 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:31:06,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-13 20:31:06,590 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:31:06,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:06,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1047368126, now seen corresponding path program 1 times [2022-12-13 20:31:06,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:06,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556728630] [2022-12-13 20:31:06,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:06,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:06,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:07,058 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 20:31:07,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:07,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556728630] [2022-12-13 20:31:07,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556728630] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:07,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:07,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:31:07,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226055417] [2022-12-13 20:31:07,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:07,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:31:07,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:07,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:31:07,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:31:07,453 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 297 [2022-12-13 20:31:07,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 601 transitions, 17003 flow. Second operand has 13 states, 13 states have (on average 133.92307692307693) internal successors, (1741), 13 states have internal predecessors, (1741), 0 states have call successors, (0), 0 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 20:31:07,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:07,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 297 [2022-12-13 20:31:07,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:09,722 INFO L130 PetriNetUnfolder]: 2297/5499 cut-off events. [2022-12-13 20:31:09,722 INFO L131 PetriNetUnfolder]: For 208368/208368 co-relation queries the response was YES. [2022-12-13 20:31:09,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53104 conditions, 5499 events. 2297/5499 cut-off events. For 208368/208368 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 52584 event pairs, 1238 based on Foata normal form. 1/5499 useless extension candidates. Maximal degree in co-relation 52380. Up to 4911 conditions per place. [2022-12-13 20:31:09,767 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 541 selfloop transitions, 80 changer transitions 4/627 dead transitions. [2022-12-13 20:31:09,767 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 627 transitions, 18779 flow [2022-12-13 20:31:09,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 20:31:09,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 20:31:09,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2070 transitions. [2022-12-13 20:31:09,769 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46464646464646464 [2022-12-13 20:31:09,769 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2070 transitions. [2022-12-13 20:31:09,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2070 transitions. [2022-12-13 20:31:09,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:09,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2070 transitions. [2022-12-13 20:31:09,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 138.0) internal successors, (2070), 15 states have internal predecessors, (2070), 0 states have call successors, (0), 0 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 20:31:09,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 297.0) internal successors, (4752), 16 states have internal predecessors, (4752), 0 states have call successors, (0), 0 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 20:31:09,773 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 297.0) internal successors, (4752), 16 states have internal predecessors, (4752), 0 states have call successors, (0), 0 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 20:31:09,773 INFO L175 Difference]: Start difference. First operand has 315 places, 601 transitions, 17003 flow. Second operand 15 states and 2070 transitions. [2022-12-13 20:31:09,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 627 transitions, 18779 flow [2022-12-13 20:31:10,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 627 transitions, 18674 flow, removed 28 selfloop flow, removed 3 redundant places. [2022-12-13 20:31:10,864 INFO L231 Difference]: Finished difference. Result has 327 places, 609 transitions, 17304 flow [2022-12-13 20:31:10,865 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=16900, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=601, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=17304, PETRI_PLACES=327, PETRI_TRANSITIONS=609} [2022-12-13 20:31:10,865 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 289 predicate places. [2022-12-13 20:31:10,865 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 609 transitions, 17304 flow [2022-12-13 20:31:10,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 133.92307692307693) internal successors, (1741), 13 states have internal predecessors, (1741), 0 states have call successors, (0), 0 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 20:31:10,865 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:10,866 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:31:10,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-13 20:31:10,866 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:31:10,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:10,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1925293927, now seen corresponding path program 2 times [2022-12-13 20:31:10,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:10,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375152227] [2022-12-13 20:31:10,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:10,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:11,187 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 20:31:11,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:11,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375152227] [2022-12-13 20:31:11,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375152227] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:11,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:11,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:31:11,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645141726] [2022-12-13 20:31:11,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:11,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:31:11,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:11,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:31:11,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:31:11,425 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 297 [2022-12-13 20:31:11,426 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 609 transitions, 17304 flow. Second operand has 10 states, 10 states have (on average 136.2) internal successors, (1362), 10 states have internal predecessors, (1362), 0 states have call successors, (0), 0 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 20:31:11,426 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:11,426 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 297 [2022-12-13 20:31:11,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:13,853 INFO L130 PetriNetUnfolder]: 2361/5680 cut-off events. [2022-12-13 20:31:13,853 INFO L131 PetriNetUnfolder]: For 224446/224446 co-relation queries the response was YES. [2022-12-13 20:31:13,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55480 conditions, 5680 events. 2361/5680 cut-off events. For 224446/224446 co-relation queries the response was YES. Maximal size of possible extension queue 513. Compared 54347 event pairs, 696 based on Foata normal form. 3/5681 useless extension candidates. Maximal degree in co-relation 54811. Up to 2277 conditions per place. [2022-12-13 20:31:13,899 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 340 selfloop transitions, 372 changer transitions 11/725 dead transitions. [2022-12-13 20:31:13,899 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 725 transitions, 21573 flow [2022-12-13 20:31:13,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 20:31:13,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 20:31:13,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1860 transitions. [2022-12-13 20:31:13,901 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48174048174048173 [2022-12-13 20:31:13,901 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1860 transitions. [2022-12-13 20:31:13,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1860 transitions. [2022-12-13 20:31:13,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:13,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1860 transitions. [2022-12-13 20:31:13,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 143.07692307692307) internal successors, (1860), 13 states have internal predecessors, (1860), 0 states have call successors, (0), 0 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 20:31:13,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:31:13,905 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:31:13,905 INFO L175 Difference]: Start difference. First operand has 327 places, 609 transitions, 17304 flow. Second operand 13 states and 1860 transitions. [2022-12-13 20:31:13,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 725 transitions, 21573 flow [2022-12-13 20:31:14,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 725 transitions, 21139 flow, removed 138 selfloop flow, removed 9 redundant places. [2022-12-13 20:31:14,933 INFO L231 Difference]: Finished difference. Result has 338 places, 644 transitions, 19575 flow [2022-12-13 20:31:14,933 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=17018, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=338, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=19575, PETRI_PLACES=338, PETRI_TRANSITIONS=644} [2022-12-13 20:31:14,933 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 300 predicate places. [2022-12-13 20:31:14,933 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 644 transitions, 19575 flow [2022-12-13 20:31:14,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.2) internal successors, (1362), 10 states have internal predecessors, (1362), 0 states have call successors, (0), 0 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 20:31:14,933 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:14,934 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:31:14,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-13 20:31:14,934 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:31:14,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:14,934 INFO L85 PathProgramCache]: Analyzing trace with hash 501299096, now seen corresponding path program 2 times [2022-12-13 20:31:14,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:14,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534535739] [2022-12-13 20:31:14,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:14,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:15,343 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 20:31:15,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:15,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534535739] [2022-12-13 20:31:15,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534535739] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:15,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:15,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:31:15,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101331059] [2022-12-13 20:31:15,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:15,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:31:15,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:15,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:31:15,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:31:15,679 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 297 [2022-12-13 20:31:15,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 644 transitions, 19575 flow. Second operand has 13 states, 13 states have (on average 133.92307692307693) internal successors, (1741), 13 states have internal predecessors, (1741), 0 states have call successors, (0), 0 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 20:31:15,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:15,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 297 [2022-12-13 20:31:15,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:18,143 INFO L130 PetriNetUnfolder]: 2359/5672 cut-off events. [2022-12-13 20:31:18,143 INFO L131 PetriNetUnfolder]: For 244756/244756 co-relation queries the response was YES. [2022-12-13 20:31:18,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56857 conditions, 5672 events. 2359/5672 cut-off events. For 244756/244756 co-relation queries the response was YES. Maximal size of possible extension queue 521. Compared 54437 event pairs, 1279 based on Foata normal form. 2/5674 useless extension candidates. Maximal degree in co-relation 56145. Up to 5053 conditions per place. [2022-12-13 20:31:18,191 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 561 selfloop transitions, 94 changer transitions 3/660 dead transitions. [2022-12-13 20:31:18,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 660 transitions, 21139 flow [2022-12-13 20:31:18,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:31:18,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 20:31:18,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1935 transitions. [2022-12-13 20:31:18,193 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4653679653679654 [2022-12-13 20:31:18,193 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1935 transitions. [2022-12-13 20:31:18,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1935 transitions. [2022-12-13 20:31:18,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:18,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1935 transitions. [2022-12-13 20:31:18,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 138.21428571428572) internal successors, (1935), 14 states have internal predecessors, (1935), 0 states have call successors, (0), 0 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 20:31:18,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 297.0) internal successors, (4455), 15 states have internal predecessors, (4455), 0 states have call successors, (0), 0 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 20:31:18,197 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 297.0) internal successors, (4455), 15 states have internal predecessors, (4455), 0 states have call successors, (0), 0 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 20:31:18,197 INFO L175 Difference]: Start difference. First operand has 338 places, 644 transitions, 19575 flow. Second operand 14 states and 1935 transitions. [2022-12-13 20:31:18,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 660 transitions, 21139 flow [2022-12-13 20:31:19,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 660 transitions, 20676 flow, removed 161 selfloop flow, removed 5 redundant places. [2022-12-13 20:31:19,617 INFO L231 Difference]: Finished difference. Result has 347 places, 644 transitions, 19332 flow [2022-12-13 20:31:19,618 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=19132, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=644, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=550, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=19332, PETRI_PLACES=347, PETRI_TRANSITIONS=644} [2022-12-13 20:31:19,618 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 309 predicate places. [2022-12-13 20:31:19,618 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 644 transitions, 19332 flow [2022-12-13 20:31:19,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 133.92307692307693) internal successors, (1741), 13 states have internal predecessors, (1741), 0 states have call successors, (0), 0 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 20:31:19,618 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:19,618 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:31:19,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-13 20:31:19,618 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:31:19,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:19,619 INFO L85 PathProgramCache]: Analyzing trace with hash 895755099, now seen corresponding path program 3 times [2022-12-13 20:31:19,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:19,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114284802] [2022-12-13 20:31:19,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:19,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:19,818 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 20:31:19,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:19,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114284802] [2022-12-13 20:31:19,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114284802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:19,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:19,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:31:19,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841043061] [2022-12-13 20:31:19,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:19,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 20:31:19,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:19,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 20:31:19,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:31:20,038 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 297 [2022-12-13 20:31:20,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 644 transitions, 19332 flow. Second operand has 8 states, 8 states have (on average 144.5) internal successors, (1156), 8 states have internal predecessors, (1156), 0 states have call successors, (0), 0 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 20:31:20,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:20,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 297 [2022-12-13 20:31:20,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:22,356 INFO L130 PetriNetUnfolder]: 2283/5648 cut-off events. [2022-12-13 20:31:22,356 INFO L131 PetriNetUnfolder]: For 227055/227076 co-relation queries the response was YES. [2022-12-13 20:31:22,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55190 conditions, 5648 events. 2283/5648 cut-off events. For 227055/227076 co-relation queries the response was YES. Maximal size of possible extension queue 530. Compared 55375 event pairs, 681 based on Foata normal form. 5/5578 useless extension candidates. Maximal degree in co-relation 54458. Up to 1729 conditions per place. [2022-12-13 20:31:22,409 INFO L137 encePairwiseOnDemand]: 285/297 looper letters, 310 selfloop transitions, 360 changer transitions 6/737 dead transitions. [2022-12-13 20:31:22,409 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 737 transitions, 22746 flow [2022-12-13 20:31:22,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 20:31:22,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 20:31:22,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1798 transitions. [2022-12-13 20:31:22,411 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5044893378226711 [2022-12-13 20:31:22,411 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1798 transitions. [2022-12-13 20:31:22,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1798 transitions. [2022-12-13 20:31:22,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:22,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1798 transitions. [2022-12-13 20:31:22,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 149.83333333333334) internal successors, (1798), 12 states have internal predecessors, (1798), 0 states have call successors, (0), 0 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 20:31:22,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:31:22,414 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:31:22,415 INFO L175 Difference]: Start difference. First operand has 347 places, 644 transitions, 19332 flow. Second operand 12 states and 1798 transitions. [2022-12-13 20:31:22,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 737 transitions, 22746 flow [2022-12-13 20:31:23,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 737 transitions, 22548 flow, removed 14 selfloop flow, removed 9 redundant places. [2022-12-13 20:31:23,767 INFO L231 Difference]: Finished difference. Result has 353 places, 669 transitions, 21182 flow [2022-12-13 20:31:23,768 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=19160, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=644, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=340, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=21182, PETRI_PLACES=353, PETRI_TRANSITIONS=669} [2022-12-13 20:31:23,768 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 315 predicate places. [2022-12-13 20:31:23,768 INFO L495 AbstractCegarLoop]: Abstraction has has 353 places, 669 transitions, 21182 flow [2022-12-13 20:31:23,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 144.5) internal successors, (1156), 8 states have internal predecessors, (1156), 0 states have call successors, (0), 0 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 20:31:23,768 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:23,768 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:31:23,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-13 20:31:23,768 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:31:23,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:23,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1639593581, now seen corresponding path program 1 times [2022-12-13 20:31:23,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:23,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255297695] [2022-12-13 20:31:23,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:23,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:24,431 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 20:31:24,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:24,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255297695] [2022-12-13 20:31:24,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255297695] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:24,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:24,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:31:24,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893141650] [2022-12-13 20:31:24,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:24,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:31:24,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:24,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:31:24,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:31:24,934 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:31:24,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 669 transitions, 21182 flow. Second operand has 14 states, 14 states have (on average 130.92857142857142) internal successors, (1833), 14 states have internal predecessors, (1833), 0 states have call successors, (0), 0 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 20:31:24,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:24,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:31:24,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:27,760 INFO L130 PetriNetUnfolder]: 2473/5939 cut-off events. [2022-12-13 20:31:27,760 INFO L131 PetriNetUnfolder]: For 281384/281384 co-relation queries the response was YES. [2022-12-13 20:31:27,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61231 conditions, 5939 events. 2473/5939 cut-off events. For 281384/281384 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 57473 event pairs, 1236 based on Foata normal form. 8/5946 useless extension candidates. Maximal degree in co-relation 60669. Up to 5142 conditions per place. [2022-12-13 20:31:27,820 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 541 selfloop transitions, 175 changer transitions 7/725 dead transitions. [2022-12-13 20:31:27,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 725 transitions, 24209 flow [2022-12-13 20:31:27,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:31:27,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 20:31:27,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2170 transitions. [2022-12-13 20:31:27,823 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45664983164983164 [2022-12-13 20:31:27,823 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2170 transitions. [2022-12-13 20:31:27,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2170 transitions. [2022-12-13 20:31:27,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:27,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2170 transitions. [2022-12-13 20:31:27,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 135.625) internal successors, (2170), 16 states have internal predecessors, (2170), 0 states have call successors, (0), 0 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 20:31:27,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:31:27,827 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:31:27,827 INFO L175 Difference]: Start difference. First operand has 353 places, 669 transitions, 21182 flow. Second operand 16 states and 2170 transitions. [2022-12-13 20:31:27,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 725 transitions, 24209 flow [2022-12-13 20:31:29,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 725 transitions, 23644 flow, removed 56 selfloop flow, removed 10 redundant places. [2022-12-13 20:31:29,498 INFO L231 Difference]: Finished difference. Result has 364 places, 695 transitions, 22231 flow [2022-12-13 20:31:29,499 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=20525, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=666, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=503, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=22231, PETRI_PLACES=364, PETRI_TRANSITIONS=695} [2022-12-13 20:31:29,499 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 326 predicate places. [2022-12-13 20:31:29,499 INFO L495 AbstractCegarLoop]: Abstraction has has 364 places, 695 transitions, 22231 flow [2022-12-13 20:31:29,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 130.92857142857142) internal successors, (1833), 14 states have internal predecessors, (1833), 0 states have call successors, (0), 0 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 20:31:29,499 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:29,499 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:31:29,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-13 20:31:29,500 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:31:29,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:29,500 INFO L85 PathProgramCache]: Analyzing trace with hash -419556140, now seen corresponding path program 3 times [2022-12-13 20:31:29,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:29,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943161816] [2022-12-13 20:31:29,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:29,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:29,906 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 20:31:29,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:29,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943161816] [2022-12-13 20:31:29,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943161816] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:29,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:29,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:31:29,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296421100] [2022-12-13 20:31:29,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:29,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:31:29,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:29,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:31:29,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:31:30,313 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 297 [2022-12-13 20:31:30,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 695 transitions, 22231 flow. Second operand has 13 states, 13 states have (on average 133.92307692307693) internal successors, (1741), 13 states have internal predecessors, (1741), 0 states have call successors, (0), 0 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 20:31:30,314 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:30,314 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 297 [2022-12-13 20:31:30,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:33,067 INFO L130 PetriNetUnfolder]: 2469/5930 cut-off events. [2022-12-13 20:31:33,067 INFO L131 PetriNetUnfolder]: For 274989/274989 co-relation queries the response was YES. [2022-12-13 20:31:33,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61656 conditions, 5930 events. 2469/5930 cut-off events. For 274989/274989 co-relation queries the response was YES. Maximal size of possible extension queue 552. Compared 57464 event pairs, 1336 based on Foata normal form. 1/5930 useless extension candidates. Maximal degree in co-relation 61079. Up to 5332 conditions per place. [2022-12-13 20:31:33,129 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 625 selfloop transitions, 79 changer transitions 2/708 dead transitions. [2022-12-13 20:31:33,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 708 transitions, 23834 flow [2022-12-13 20:31:33,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 20:31:33,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 20:31:33,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2473 transitions. [2022-12-13 20:31:33,132 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46258885147774037 [2022-12-13 20:31:33,132 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2473 transitions. [2022-12-13 20:31:33,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2473 transitions. [2022-12-13 20:31:33,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:33,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2473 transitions. [2022-12-13 20:31:33,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.38888888888889) internal successors, (2473), 18 states have internal predecessors, (2473), 0 states have call successors, (0), 0 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 20:31:33,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 297.0) internal successors, (5643), 19 states have internal predecessors, (5643), 0 states have call successors, (0), 0 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 20:31:33,136 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 297.0) internal successors, (5643), 19 states have internal predecessors, (5643), 0 states have call successors, (0), 0 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 20:31:33,136 INFO L175 Difference]: Start difference. First operand has 364 places, 695 transitions, 22231 flow. Second operand 18 states and 2473 transitions. [2022-12-13 20:31:33,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 708 transitions, 23834 flow [2022-12-13 20:31:34,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 708 transitions, 23595 flow, removed 72 selfloop flow, removed 6 redundant places. [2022-12-13 20:31:34,759 INFO L231 Difference]: Finished difference. Result has 377 places, 696 transitions, 22196 flow [2022-12-13 20:31:34,759 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=21961, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=694, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=22196, PETRI_PLACES=377, PETRI_TRANSITIONS=696} [2022-12-13 20:31:34,760 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 339 predicate places. [2022-12-13 20:31:34,760 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 696 transitions, 22196 flow [2022-12-13 20:31:34,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 133.92307692307693) internal successors, (1741), 13 states have internal predecessors, (1741), 0 states have call successors, (0), 0 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 20:31:34,760 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:34,760 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:31:34,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-12-13 20:31:34,760 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:31:34,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:34,761 INFO L85 PathProgramCache]: Analyzing trace with hash -809585018, now seen corresponding path program 1 times [2022-12-13 20:31:34,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:34,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553744404] [2022-12-13 20:31:34,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:34,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:35,256 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 20:31:35,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:35,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553744404] [2022-12-13 20:31:35,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553744404] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:35,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:35,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:31:35,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826235778] [2022-12-13 20:31:35,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:35,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:31:35,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:35,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:31:35,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:31:35,958 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:31:35,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 696 transitions, 22196 flow. Second operand has 13 states, 13 states have (on average 130.92307692307693) internal successors, (1702), 13 states have internal predecessors, (1702), 0 states have call successors, (0), 0 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 20:31:35,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:35,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:31:35,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:39,065 INFO L130 PetriNetUnfolder]: 2649/6416 cut-off events. [2022-12-13 20:31:39,065 INFO L131 PetriNetUnfolder]: For 294192/294192 co-relation queries the response was YES. [2022-12-13 20:31:39,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65884 conditions, 6416 events. 2649/6416 cut-off events. For 294192/294192 co-relation queries the response was YES. Maximal size of possible extension queue 590. Compared 63303 event pairs, 1099 based on Foata normal form. 35/6450 useless extension candidates. Maximal degree in co-relation 65004. Up to 4526 conditions per place. [2022-12-13 20:31:39,123 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 576 selfloop transitions, 190 changer transitions 26/794 dead transitions. [2022-12-13 20:31:39,123 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 794 transitions, 26581 flow [2022-12-13 20:31:39,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:31:39,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 20:31:39,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1917 transitions. [2022-12-13 20:31:39,125 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.461038961038961 [2022-12-13 20:31:39,126 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1917 transitions. [2022-12-13 20:31:39,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1917 transitions. [2022-12-13 20:31:39,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:39,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1917 transitions. [2022-12-13 20:31:39,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 136.92857142857142) internal successors, (1917), 14 states have internal predecessors, (1917), 0 states have call successors, (0), 0 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 20:31:39,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 297.0) internal successors, (4455), 15 states have internal predecessors, (4455), 0 states have call successors, (0), 0 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 20:31:39,129 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 297.0) internal successors, (4455), 15 states have internal predecessors, (4455), 0 states have call successors, (0), 0 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 20:31:39,129 INFO L175 Difference]: Start difference. First operand has 377 places, 696 transitions, 22196 flow. Second operand 14 states and 1917 transitions. [2022-12-13 20:31:39,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 794 transitions, 26581 flow [2022-12-13 20:31:40,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 794 transitions, 26375 flow, removed 22 selfloop flow, removed 16 redundant places. [2022-12-13 20:31:40,732 INFO L231 Difference]: Finished difference. Result has 378 places, 728 transitions, 23673 flow [2022-12-13 20:31:40,733 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=21876, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=693, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=520, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=23673, PETRI_PLACES=378, PETRI_TRANSITIONS=728} [2022-12-13 20:31:40,733 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 340 predicate places. [2022-12-13 20:31:40,733 INFO L495 AbstractCegarLoop]: Abstraction has has 378 places, 728 transitions, 23673 flow [2022-12-13 20:31:40,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 130.92307692307693) internal successors, (1702), 13 states have internal predecessors, (1702), 0 states have call successors, (0), 0 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 20:31:40,733 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:40,733 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:31:40,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-12-13 20:31:40,733 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:31:40,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:40,734 INFO L85 PathProgramCache]: Analyzing trace with hash -125358495, now seen corresponding path program 1 times [2022-12-13 20:31:40,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:40,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414375020] [2022-12-13 20:31:40,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:40,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:41,160 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 20:31:41,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:41,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414375020] [2022-12-13 20:31:41,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414375020] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:41,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:41,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:31:41,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204907320] [2022-12-13 20:31:41,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:41,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:31:41,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:41,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:31:41,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:31:41,617 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 297 [2022-12-13 20:31:41,618 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 728 transitions, 23673 flow. Second operand has 11 states, 11 states have (on average 133.0909090909091) internal successors, (1464), 11 states have internal predecessors, (1464), 0 states have call successors, (0), 0 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 20:31:41,618 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:41,618 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 297 [2022-12-13 20:31:41,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:45,505 INFO L130 PetriNetUnfolder]: 3170/7952 cut-off events. [2022-12-13 20:31:45,505 INFO L131 PetriNetUnfolder]: For 375024/375024 co-relation queries the response was YES. [2022-12-13 20:31:45,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82129 conditions, 7952 events. 3170/7952 cut-off events. For 375024/375024 co-relation queries the response was YES. Maximal size of possible extension queue 775. Compared 83948 event pairs, 1685 based on Foata normal form. 40/7991 useless extension candidates. Maximal degree in co-relation 81543. Up to 5212 conditions per place. [2022-12-13 20:31:45,600 INFO L137 encePairwiseOnDemand]: 284/297 looper letters, 644 selfloop transitions, 168 changer transitions 140/954 dead transitions. [2022-12-13 20:31:45,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 954 transitions, 32865 flow [2022-12-13 20:31:45,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:31:45,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 20:31:45,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2358 transitions. [2022-12-13 20:31:45,603 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46702317290552586 [2022-12-13 20:31:45,603 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2358 transitions. [2022-12-13 20:31:45,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2358 transitions. [2022-12-13 20:31:45,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:45,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2358 transitions. [2022-12-13 20:31:45,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 138.7058823529412) internal successors, (2358), 17 states have internal predecessors, (2358), 0 states have call successors, (0), 0 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 20:31:45,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:31:45,608 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:31:45,608 INFO L175 Difference]: Start difference. First operand has 378 places, 728 transitions, 23673 flow. Second operand 17 states and 2358 transitions. [2022-12-13 20:31:45,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 954 transitions, 32865 flow [2022-12-13 20:31:47,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 954 transitions, 32716 flow, removed 52 selfloop flow, removed 5 redundant places. [2022-12-13 20:31:47,940 INFO L231 Difference]: Finished difference. Result has 397 places, 757 transitions, 24973 flow [2022-12-13 20:31:47,940 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=23553, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=728, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=584, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=24973, PETRI_PLACES=397, PETRI_TRANSITIONS=757} [2022-12-13 20:31:47,941 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 359 predicate places. [2022-12-13 20:31:47,941 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 757 transitions, 24973 flow [2022-12-13 20:31:47,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 133.0909090909091) internal successors, (1464), 11 states have internal predecessors, (1464), 0 states have call successors, (0), 0 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 20:31:47,941 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:47,941 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:31:47,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-13 20:31:47,941 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:31:47,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:47,942 INFO L85 PathProgramCache]: Analyzing trace with hash -21602881, now seen corresponding path program 2 times [2022-12-13 20:31:47,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:47,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461234945] [2022-12-13 20:31:47,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:47,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:48,425 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 20:31:48,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:48,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461234945] [2022-12-13 20:31:48,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461234945] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:48,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:48,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:31:48,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121680200] [2022-12-13 20:31:48,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:48,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:31:48,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:48,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:31:48,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:31:48,949 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:31:48,950 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 757 transitions, 24973 flow. Second operand has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 0 states have call successors, (0), 0 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 20:31:48,950 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:48,950 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:31:48,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:52,716 INFO L130 PetriNetUnfolder]: 2945/7525 cut-off events. [2022-12-13 20:31:52,716 INFO L131 PetriNetUnfolder]: For 367054/367054 co-relation queries the response was YES. [2022-12-13 20:31:52,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79069 conditions, 7525 events. 2945/7525 cut-off events. For 367054/367054 co-relation queries the response was YES. Maximal size of possible extension queue 739. Compared 79646 event pairs, 1562 based on Foata normal form. 64/7588 useless extension candidates. Maximal degree in co-relation 78470. Up to 5486 conditions per place. [2022-12-13 20:31:52,809 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 577 selfloop transitions, 165 changer transitions 132/876 dead transitions. [2022-12-13 20:31:52,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 876 transitions, 30794 flow [2022-12-13 20:31:52,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 20:31:52,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 20:31:52,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2046 transitions. [2022-12-13 20:31:52,812 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45925925925925926 [2022-12-13 20:31:52,812 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2046 transitions. [2022-12-13 20:31:52,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2046 transitions. [2022-12-13 20:31:52,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:52,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2046 transitions. [2022-12-13 20:31:52,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 136.4) internal successors, (2046), 15 states have internal predecessors, (2046), 0 states have call successors, (0), 0 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 20:31:52,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 297.0) internal successors, (4752), 16 states have internal predecessors, (4752), 0 states have call successors, (0), 0 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 20:31:52,816 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 297.0) internal successors, (4752), 16 states have internal predecessors, (4752), 0 states have call successors, (0), 0 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 20:31:52,816 INFO L175 Difference]: Start difference. First operand has 397 places, 757 transitions, 24973 flow. Second operand 15 states and 2046 transitions. [2022-12-13 20:31:52,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 876 transitions, 30794 flow [2022-12-13 20:31:55,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 876 transitions, 30557 flow, removed 52 selfloop flow, removed 9 redundant places. [2022-12-13 20:31:55,166 INFO L231 Difference]: Finished difference. Result has 406 places, 728 transitions, 24311 flow [2022-12-13 20:31:55,167 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=24786, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=757, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=165, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=592, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=24311, PETRI_PLACES=406, PETRI_TRANSITIONS=728} [2022-12-13 20:31:55,167 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 368 predicate places. [2022-12-13 20:31:55,167 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 728 transitions, 24311 flow [2022-12-13 20:31:55,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 0 states have call successors, (0), 0 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 20:31:55,167 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:55,167 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:31:55,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-12-13 20:31:55,168 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:31:55,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:55,168 INFO L85 PathProgramCache]: Analyzing trace with hash -2061052991, now seen corresponding path program 4 times [2022-12-13 20:31:55,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:55,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791112707] [2022-12-13 20:31:55,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:55,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:55,497 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 20:31:55,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:55,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791112707] [2022-12-13 20:31:55,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791112707] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:55,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:55,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:31:55,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255808703] [2022-12-13 20:31:55,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:55,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:31:55,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:55,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:31:55,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:31:55,807 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 297 [2022-12-13 20:31:55,808 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 728 transitions, 24311 flow. Second operand has 12 states, 12 states have (on average 135.0) internal successors, (1620), 12 states have internal predecessors, (1620), 0 states have call successors, (0), 0 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 20:31:55,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:55,808 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 297 [2022-12-13 20:31:55,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:58,905 INFO L130 PetriNetUnfolder]: 2537/6308 cut-off events. [2022-12-13 20:31:58,905 INFO L131 PetriNetUnfolder]: For 311898/311898 co-relation queries the response was YES. [2022-12-13 20:31:58,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68643 conditions, 6308 events. 2537/6308 cut-off events. For 311898/311898 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 62891 event pairs, 819 based on Foata normal form. 3/6311 useless extension candidates. Maximal degree in co-relation 67747. Up to 2690 conditions per place. [2022-12-13 20:31:58,989 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 366 selfloop transitions, 423 changer transitions 11/802 dead transitions. [2022-12-13 20:31:58,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 802 transitions, 27423 flow [2022-12-13 20:31:58,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:31:58,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 20:31:58,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1977 transitions. [2022-12-13 20:31:58,991 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4754689754689755 [2022-12-13 20:31:58,991 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1977 transitions. [2022-12-13 20:31:58,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1977 transitions. [2022-12-13 20:31:58,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:58,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1977 transitions. [2022-12-13 20:31:58,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 141.21428571428572) internal successors, (1977), 14 states have internal predecessors, (1977), 0 states have call successors, (0), 0 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 20:31:58,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 297.0) internal successors, (4455), 15 states have internal predecessors, (4455), 0 states have call successors, (0), 0 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 20:31:58,995 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 297.0) internal successors, (4455), 15 states have internal predecessors, (4455), 0 states have call successors, (0), 0 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 20:31:58,995 INFO L175 Difference]: Start difference. First operand has 406 places, 728 transitions, 24311 flow. Second operand 14 states and 1977 transitions. [2022-12-13 20:31:58,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 802 transitions, 27423 flow [2022-12-13 20:32:00,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 802 transitions, 26910 flow, removed 50 selfloop flow, removed 19 redundant places. [2022-12-13 20:32:00,880 INFO L231 Difference]: Finished difference. Result has 401 places, 728 transitions, 24780 flow [2022-12-13 20:32:00,881 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=23665, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=723, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=418, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=24780, PETRI_PLACES=401, PETRI_TRANSITIONS=728} [2022-12-13 20:32:00,881 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 363 predicate places. [2022-12-13 20:32:00,881 INFO L495 AbstractCegarLoop]: Abstraction has has 401 places, 728 transitions, 24780 flow [2022-12-13 20:32:00,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 135.0) internal successors, (1620), 12 states have internal predecessors, (1620), 0 states have call successors, (0), 0 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 20:32:00,881 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:32:00,881 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:32:00,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-12-13 20:32:00,882 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:32:00,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:32:00,882 INFO L85 PathProgramCache]: Analyzing trace with hash -909980375, now seen corresponding path program 3 times [2022-12-13 20:32:00,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:32:00,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454238054] [2022-12-13 20:32:00,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:32:00,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:32:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:01,376 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 20:32:01,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:32:01,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454238054] [2022-12-13 20:32:01,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454238054] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:32:01,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:32:01,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:32:01,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374198295] [2022-12-13 20:32:01,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:32:01,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:32:01,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:32:01,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:32:01,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:32:01,752 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 297 [2022-12-13 20:32:01,753 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 728 transitions, 24780 flow. Second operand has 11 states, 11 states have (on average 133.0909090909091) internal successors, (1464), 11 states have internal predecessors, (1464), 0 states have call successors, (0), 0 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 20:32:01,753 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:32:01,753 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 297 [2022-12-13 20:32:01,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:32:04,801 INFO L130 PetriNetUnfolder]: 2509/6216 cut-off events. [2022-12-13 20:32:04,801 INFO L131 PetriNetUnfolder]: For 311806/311806 co-relation queries the response was YES. [2022-12-13 20:32:04,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67095 conditions, 6216 events. 2509/6216 cut-off events. For 311806/311806 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 61847 event pairs, 1320 based on Foata normal form. 36/6251 useless extension candidates. Maximal degree in co-relation 66486. Up to 5027 conditions per place. [2022-12-13 20:32:04,865 INFO L137 encePairwiseOnDemand]: 284/297 looper letters, 579 selfloop transitions, 163 changer transitions 22/766 dead transitions. [2022-12-13 20:32:04,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 766 transitions, 27001 flow [2022-12-13 20:32:04,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:32:04,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 20:32:04,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2204 transitions. [2022-12-13 20:32:04,868 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46380471380471383 [2022-12-13 20:32:04,868 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2204 transitions. [2022-12-13 20:32:04,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2204 transitions. [2022-12-13 20:32:04,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:32:04,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2204 transitions. [2022-12-13 20:32:04,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 137.75) internal successors, (2204), 16 states have internal predecessors, (2204), 0 states have call successors, (0), 0 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 20:32:04,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:32:04,872 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:32:04,872 INFO L175 Difference]: Start difference. First operand has 401 places, 728 transitions, 24780 flow. Second operand 16 states and 2204 transitions. [2022-12-13 20:32:04,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 766 transitions, 27001 flow [2022-12-13 20:32:06,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 766 transitions, 26588 flow, removed 26 selfloop flow, removed 12 redundant places. [2022-12-13 20:32:06,771 INFO L231 Difference]: Finished difference. Result has 407 places, 718 transitions, 24470 flow [2022-12-13 20:32:06,771 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=24336, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=727, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=163, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=24470, PETRI_PLACES=407, PETRI_TRANSITIONS=718} [2022-12-13 20:32:06,771 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 369 predicate places. [2022-12-13 20:32:06,772 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 718 transitions, 24470 flow [2022-12-13 20:32:06,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 133.0909090909091) internal successors, (1464), 11 states have internal predecessors, (1464), 0 states have call successors, (0), 0 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 20:32:06,772 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:32:06,772 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:32:06,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-12-13 20:32:06,772 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:32:06,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:32:06,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1053548847, now seen corresponding path program 4 times [2022-12-13 20:32:06,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:32:06,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544908986] [2022-12-13 20:32:06,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:32:06,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:32:06,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:07,232 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 20:32:07,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:32:07,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544908986] [2022-12-13 20:32:07,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544908986] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:32:07,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:32:07,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:32:07,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207489457] [2022-12-13 20:32:07,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:32:07,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:32:07,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:32:07,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:32:07,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:32:07,772 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 297 [2022-12-13 20:32:07,773 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 718 transitions, 24470 flow. Second operand has 11 states, 11 states have (on average 134.0909090909091) internal successors, (1475), 11 states have internal predecessors, (1475), 0 states have call successors, (0), 0 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 20:32:07,773 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:32:07,773 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 297 [2022-12-13 20:32:07,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:32:10,864 INFO L130 PetriNetUnfolder]: 2429/5917 cut-off events. [2022-12-13 20:32:10,864 INFO L131 PetriNetUnfolder]: For 299913/299913 co-relation queries the response was YES. [2022-12-13 20:32:10,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64434 conditions, 5917 events. 2429/5917 cut-off events. For 299913/299913 co-relation queries the response was YES. Maximal size of possible extension queue 522. Compared 57579 event pairs, 1319 based on Foata normal form. 8/5924 useless extension candidates. Maximal degree in co-relation 63878. Up to 4999 conditions per place. [2022-12-13 20:32:10,932 INFO L137 encePairwiseOnDemand]: 285/297 looper letters, 572 selfloop transitions, 139 changer transitions 35/748 dead transitions. [2022-12-13 20:32:10,932 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 748 transitions, 26509 flow [2022-12-13 20:32:10,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:32:10,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 20:32:10,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2350 transitions. [2022-12-13 20:32:10,935 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4654387007328184 [2022-12-13 20:32:10,935 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2350 transitions. [2022-12-13 20:32:10,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2350 transitions. [2022-12-13 20:32:10,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:32:10,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2350 transitions. [2022-12-13 20:32:10,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 138.23529411764707) internal successors, (2350), 17 states have internal predecessors, (2350), 0 states have call successors, (0), 0 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 20:32:10,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:32:10,939 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:32:10,939 INFO L175 Difference]: Start difference. First operand has 407 places, 718 transitions, 24470 flow. Second operand 17 states and 2350 transitions. [2022-12-13 20:32:10,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 748 transitions, 26509 flow [2022-12-13 20:32:12,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 748 transitions, 26178 flow, removed 18 selfloop flow, removed 17 redundant places. [2022-12-13 20:32:12,667 INFO L231 Difference]: Finished difference. Result has 408 places, 700 transitions, 23799 flow [2022-12-13 20:32:12,667 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=24139, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=718, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=579, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=23799, PETRI_PLACES=408, PETRI_TRANSITIONS=700} [2022-12-13 20:32:12,667 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 370 predicate places. [2022-12-13 20:32:12,667 INFO L495 AbstractCegarLoop]: Abstraction has has 408 places, 700 transitions, 23799 flow [2022-12-13 20:32:12,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 134.0909090909091) internal successors, (1475), 11 states have internal predecessors, (1475), 0 states have call successors, (0), 0 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 20:32:12,668 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:32:12,668 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:32:12,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-12-13 20:32:12,668 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:32:12,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:32:12,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1147441647, now seen corresponding path program 5 times [2022-12-13 20:32:12,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:32:12,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843887795] [2022-12-13 20:32:12,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:32:12,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:32:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:13,221 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 20:32:13,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:32:13,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843887795] [2022-12-13 20:32:13,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843887795] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:32:13,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:32:13,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:32:13,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753672553] [2022-12-13 20:32:13,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:32:13,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:32:13,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:32:13,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:32:13,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:32:13,668 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:32:13,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 700 transitions, 23799 flow. Second operand has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 0 states have call successors, (0), 0 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 20:32:13,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:32:13,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:32:13,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:32:16,694 INFO L130 PetriNetUnfolder]: 2378/5784 cut-off events. [2022-12-13 20:32:16,694 INFO L131 PetriNetUnfolder]: For 295649/295649 co-relation queries the response was YES. [2022-12-13 20:32:16,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63090 conditions, 5784 events. 2378/5784 cut-off events. For 295649/295649 co-relation queries the response was YES. Maximal size of possible extension queue 531. Compared 56217 event pairs, 1272 based on Foata normal form. 3/5786 useless extension candidates. Maximal degree in co-relation 62481. Up to 5094 conditions per place. [2022-12-13 20:32:16,760 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 565 selfloop transitions, 169 changer transitions 8/744 dead transitions. [2022-12-13 20:32:16,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 744 transitions, 26260 flow [2022-12-13 20:32:16,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 20:32:16,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 20:32:16,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2434 transitions. [2022-12-13 20:32:16,762 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4552936775158997 [2022-12-13 20:32:16,762 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2434 transitions. [2022-12-13 20:32:16,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2434 transitions. [2022-12-13 20:32:16,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:32:16,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2434 transitions. [2022-12-13 20:32:16,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 135.22222222222223) internal successors, (2434), 18 states have internal predecessors, (2434), 0 states have call successors, (0), 0 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 20:32:16,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 297.0) internal successors, (5643), 19 states have internal predecessors, (5643), 0 states have call successors, (0), 0 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 20:32:16,767 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 297.0) internal successors, (5643), 19 states have internal predecessors, (5643), 0 states have call successors, (0), 0 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 20:32:16,767 INFO L175 Difference]: Start difference. First operand has 408 places, 700 transitions, 23799 flow. Second operand 18 states and 2434 transitions. [2022-12-13 20:32:16,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 744 transitions, 26260 flow [2022-12-13 20:32:18,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 744 transitions, 25840 flow, removed 47 selfloop flow, removed 19 redundant places. [2022-12-13 20:32:18,514 INFO L231 Difference]: Finished difference. Result has 397 places, 710 transitions, 24347 flow [2022-12-13 20:32:18,514 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=23399, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=699, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=24347, PETRI_PLACES=397, PETRI_TRANSITIONS=710} [2022-12-13 20:32:18,515 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 359 predicate places. [2022-12-13 20:32:18,515 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 710 transitions, 24347 flow [2022-12-13 20:32:18,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 0 states have call successors, (0), 0 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 20:32:18,515 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:32:18,515 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:32:18,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-12-13 20:32:18,515 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:32:18,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:32:18,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1148075907, now seen corresponding path program 6 times [2022-12-13 20:32:18,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:32:18,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781278009] [2022-12-13 20:32:18,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:32:18,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:32:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:19,129 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 20:32:19,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:32:19,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781278009] [2022-12-13 20:32:19,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781278009] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:32:19,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:32:19,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:32:19,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54438495] [2022-12-13 20:32:19,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:32:19,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:32:19,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:32:19,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:32:19,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:32:19,533 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:32:19,534 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 710 transitions, 24347 flow. Second operand has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 0 states have call successors, (0), 0 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 20:32:19,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:32:19,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:32:19,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:32:22,515 INFO L130 PetriNetUnfolder]: 2381/5772 cut-off events. [2022-12-13 20:32:22,515 INFO L131 PetriNetUnfolder]: For 293515/293515 co-relation queries the response was YES. [2022-12-13 20:32:22,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62828 conditions, 5772 events. 2381/5772 cut-off events. For 293515/293515 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 55762 event pairs, 1268 based on Foata normal form. 8/5779 useless extension candidates. Maximal degree in co-relation 62239. Up to 5112 conditions per place. [2022-12-13 20:32:22,577 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 584 selfloop transitions, 145 changer transitions 18/749 dead transitions. [2022-12-13 20:32:22,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 749 transitions, 26852 flow [2022-12-13 20:32:22,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 20:32:22,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-13 20:32:22,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2563 transitions. [2022-12-13 20:32:22,579 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45419103313840153 [2022-12-13 20:32:22,579 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2563 transitions. [2022-12-13 20:32:22,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2563 transitions. [2022-12-13 20:32:22,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:32:22,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2563 transitions. [2022-12-13 20:32:22,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 134.89473684210526) internal successors, (2563), 19 states have internal predecessors, (2563), 0 states have call successors, (0), 0 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 20:32:22,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 297.0) internal successors, (5940), 20 states have internal predecessors, (5940), 0 states have call successors, (0), 0 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 20:32:22,584 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 297.0) internal successors, (5940), 20 states have internal predecessors, (5940), 0 states have call successors, (0), 0 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 20:32:22,584 INFO L175 Difference]: Start difference. First operand has 397 places, 710 transitions, 24347 flow. Second operand 19 states and 2563 transitions. [2022-12-13 20:32:22,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 749 transitions, 26852 flow [2022-12-13 20:32:24,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 749 transitions, 26238 flow, removed 73 selfloop flow, removed 18 redundant places. [2022-12-13 20:32:24,181 INFO L231 Difference]: Finished difference. Result has 399 places, 714 transitions, 24537 flow [2022-12-13 20:32:24,181 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=23773, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=709, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=572, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=24537, PETRI_PLACES=399, PETRI_TRANSITIONS=714} [2022-12-13 20:32:24,181 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 361 predicate places. [2022-12-13 20:32:24,182 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 714 transitions, 24537 flow [2022-12-13 20:32:24,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 0 states have call successors, (0), 0 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 20:32:24,182 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:32:24,182 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:32:24,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-12-13 20:32:24,182 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:32:24,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:32:24,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1094537922, now seen corresponding path program 2 times [2022-12-13 20:32:24,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:32:24,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483710708] [2022-12-13 20:32:24,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:32:24,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:32:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:24,697 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 20:32:24,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:32:24,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483710708] [2022-12-13 20:32:24,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483710708] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:32:24,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:32:24,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:32:24,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305817688] [2022-12-13 20:32:24,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:32:24,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:32:24,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:32:24,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:32:24,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:32:25,119 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:32:25,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 714 transitions, 24537 flow. Second operand has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 0 states have call successors, (0), 0 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 20:32:25,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:32:25,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:32:25,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:32:27,917 INFO L130 PetriNetUnfolder]: 2335/5640 cut-off events. [2022-12-13 20:32:27,917 INFO L131 PetriNetUnfolder]: For 283292/283292 co-relation queries the response was YES. [2022-12-13 20:32:27,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61207 conditions, 5640 events. 2335/5640 cut-off events. For 283292/283292 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 54109 event pairs, 1101 based on Foata normal form. 4/5643 useless extension candidates. Maximal degree in co-relation 60664. Up to 3954 conditions per place. [2022-12-13 20:32:27,978 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 556 selfloop transitions, 190 changer transitions 15/763 dead transitions. [2022-12-13 20:32:27,978 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 763 transitions, 27419 flow [2022-12-13 20:32:27,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 20:32:27,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 20:32:27,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1773 transitions. [2022-12-13 20:32:27,980 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4592074592074592 [2022-12-13 20:32:27,980 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1773 transitions. [2022-12-13 20:32:27,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1773 transitions. [2022-12-13 20:32:27,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:32:27,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1773 transitions. [2022-12-13 20:32:27,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 136.3846153846154) internal successors, (1773), 13 states have internal predecessors, (1773), 0 states have call successors, (0), 0 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 20:32:27,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:32:27,984 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:32:27,984 INFO L175 Difference]: Start difference. First operand has 399 places, 714 transitions, 24537 flow. Second operand 13 states and 1773 transitions. [2022-12-13 20:32:27,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 763 transitions, 27419 flow [2022-12-13 20:32:29,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 763 transitions, 27176 flow, removed 26 selfloop flow, removed 11 redundant places. [2022-12-13 20:32:29,594 INFO L231 Difference]: Finished difference. Result has 389 places, 715 transitions, 24801 flow [2022-12-13 20:32:29,594 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=24296, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=714, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=524, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=24801, PETRI_PLACES=389, PETRI_TRANSITIONS=715} [2022-12-13 20:32:29,595 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 351 predicate places. [2022-12-13 20:32:29,595 INFO L495 AbstractCegarLoop]: Abstraction has has 389 places, 715 transitions, 24801 flow [2022-12-13 20:32:29,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 0 states have call successors, (0), 0 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 20:32:29,595 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:32:29,595 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:32:29,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-12-13 20:32:29,595 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:32:29,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:32:29,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1094999205, now seen corresponding path program 7 times [2022-12-13 20:32:29,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:32:29,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539735978] [2022-12-13 20:32:29,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:32:29,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:32:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:30,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:32:30,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:32:30,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539735978] [2022-12-13 20:32:30,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539735978] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:32:30,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:32:30,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:32:30,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003175193] [2022-12-13 20:32:30,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:32:30,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:32:30,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:32:30,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:32:30,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:32:30,645 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:32:30,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 715 transitions, 24801 flow. Second operand has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 0 states have call successors, (0), 0 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 20:32:30,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:32:30,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:32:30,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:32:33,486 INFO L130 PetriNetUnfolder]: 2331/5614 cut-off events. [2022-12-13 20:32:33,486 INFO L131 PetriNetUnfolder]: For 284665/284665 co-relation queries the response was YES. [2022-12-13 20:32:33,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61244 conditions, 5614 events. 2331/5614 cut-off events. For 284665/284665 co-relation queries the response was YES. Maximal size of possible extension queue 497. Compared 53771 event pairs, 1232 based on Foata normal form. 2/5615 useless extension candidates. Maximal degree in co-relation 60655. Up to 4938 conditions per place. [2022-12-13 20:32:33,545 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 544 selfloop transitions, 170 changer transitions 12/728 dead transitions. [2022-12-13 20:32:33,546 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 728 transitions, 26468 flow [2022-12-13 20:32:33,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:32:33,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 20:32:33,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1890 transitions. [2022-12-13 20:32:33,548 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2022-12-13 20:32:33,548 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1890 transitions. [2022-12-13 20:32:33,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1890 transitions. [2022-12-13 20:32:33,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:32:33,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1890 transitions. [2022-12-13 20:32:33,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 135.0) internal successors, (1890), 14 states have internal predecessors, (1890), 0 states have call successors, (0), 0 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 20:32:33,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 297.0) internal successors, (4455), 15 states have internal predecessors, (4455), 0 states have call successors, (0), 0 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 20:32:33,551 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 297.0) internal successors, (4455), 15 states have internal predecessors, (4455), 0 states have call successors, (0), 0 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 20:32:33,551 INFO L175 Difference]: Start difference. First operand has 389 places, 715 transitions, 24801 flow. Second operand 14 states and 1890 transitions. [2022-12-13 20:32:33,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 728 transitions, 26468 flow [2022-12-13 20:32:35,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 728 transitions, 26113 flow, removed 35 selfloop flow, removed 10 redundant places. [2022-12-13 20:32:35,195 INFO L231 Difference]: Finished difference. Result has 393 places, 711 transitions, 24668 flow [2022-12-13 20:32:35,196 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=24452, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=715, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=24668, PETRI_PLACES=393, PETRI_TRANSITIONS=711} [2022-12-13 20:32:35,196 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 355 predicate places. [2022-12-13 20:32:35,196 INFO L495 AbstractCegarLoop]: Abstraction has has 393 places, 711 transitions, 24668 flow [2022-12-13 20:32:35,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 0 states have call successors, (0), 0 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 20:32:35,196 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:32:35,197 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:32:35,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-12-13 20:32:35,197 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:32:35,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:32:35,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1955623165, now seen corresponding path program 2 times [2022-12-13 20:32:35,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:32:35,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985982585] [2022-12-13 20:32:35,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:32:35,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:32:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:35,567 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 20:32:35,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:32:35,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985982585] [2022-12-13 20:32:35,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985982585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:32:35,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:32:35,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:32:35,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716947048] [2022-12-13 20:32:35,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:32:35,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:32:35,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:32:35,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:32:35,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:32:35,898 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 297 [2022-12-13 20:32:35,899 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 711 transitions, 24668 flow. Second operand has 11 states, 11 states have (on average 136.1818181818182) internal successors, (1498), 11 states have internal predecessors, (1498), 0 states have call successors, (0), 0 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 20:32:35,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:32:35,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 297 [2022-12-13 20:32:35,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:32:38,843 INFO L130 PetriNetUnfolder]: 2381/5767 cut-off events. [2022-12-13 20:32:38,844 INFO L131 PetriNetUnfolder]: For 290888/290888 co-relation queries the response was YES. [2022-12-13 20:32:38,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62692 conditions, 5767 events. 2381/5767 cut-off events. For 290888/290888 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 55781 event pairs, 1219 based on Foata normal form. 5/5771 useless extension candidates. Maximal degree in co-relation 62167. Up to 4047 conditions per place. [2022-12-13 20:32:38,904 INFO L137 encePairwiseOnDemand]: 284/297 looper letters, 713 selfloop transitions, 114 changer transitions 8/837 dead transitions. [2022-12-13 20:32:38,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 837 transitions, 29892 flow [2022-12-13 20:32:38,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 20:32:38,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-13 20:32:38,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3364 transitions. [2022-12-13 20:32:38,907 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4719416386083053 [2022-12-13 20:32:38,907 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3364 transitions. [2022-12-13 20:32:38,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3364 transitions. [2022-12-13 20:32:38,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:32:38,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3364 transitions. [2022-12-13 20:32:38,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 140.16666666666666) internal successors, (3364), 24 states have internal predecessors, (3364), 0 states have call successors, (0), 0 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 20:32:38,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 297.0) internal successors, (7425), 25 states have internal predecessors, (7425), 0 states have call successors, (0), 0 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 20:32:38,913 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 297.0) internal successors, (7425), 25 states have internal predecessors, (7425), 0 states have call successors, (0), 0 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 20:32:38,913 INFO L175 Difference]: Start difference. First operand has 393 places, 711 transitions, 24668 flow. Second operand 24 states and 3364 transitions. [2022-12-13 20:32:38,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 837 transitions, 29892 flow [2022-12-13 20:32:40,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 837 transitions, 29435 flow, removed 21 selfloop flow, removed 13 redundant places. [2022-12-13 20:32:40,472 INFO L231 Difference]: Finished difference. Result has 399 places, 729 transitions, 25178 flow [2022-12-13 20:32:40,473 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=24247, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=711, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=599, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=25178, PETRI_PLACES=399, PETRI_TRANSITIONS=729} [2022-12-13 20:32:40,473 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 361 predicate places. [2022-12-13 20:32:40,473 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 729 transitions, 25178 flow [2022-12-13 20:32:40,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 136.1818181818182) internal successors, (1498), 11 states have internal predecessors, (1498), 0 states have call successors, (0), 0 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 20:32:40,473 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:32:40,474 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:32:40,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-12-13 20:32:40,474 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:32:40,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:32:40,474 INFO L85 PathProgramCache]: Analyzing trace with hash -666359071, now seen corresponding path program 3 times [2022-12-13 20:32:40,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:32:40,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789536925] [2022-12-13 20:32:40,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:32:40,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:32:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:41,088 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 20:32:41,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:32:41,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789536925] [2022-12-13 20:32:41,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789536925] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:32:41,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:32:41,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:32:41,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843058689] [2022-12-13 20:32:41,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:32:41,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:32:41,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:32:41,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:32:41,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:32:41,579 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:32:41,579 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 729 transitions, 25178 flow. Second operand has 13 states, 13 states have (on average 131.0) internal successors, (1703), 13 states have internal predecessors, (1703), 0 states have call successors, (0), 0 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 20:32:41,579 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:32:41,579 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:32:41,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:32:44,653 INFO L130 PetriNetUnfolder]: 2384/5785 cut-off events. [2022-12-13 20:32:44,653 INFO L131 PetriNetUnfolder]: For 286980/286980 co-relation queries the response was YES. [2022-12-13 20:32:44,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62100 conditions, 5785 events. 2384/5785 cut-off events. For 286980/286980 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 55885 event pairs, 1256 based on Foata normal form. 2/5786 useless extension candidates. Maximal degree in co-relation 61549. Up to 5112 conditions per place. [2022-12-13 20:32:44,714 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 607 selfloop transitions, 138 changer transitions 3/750 dead transitions. [2022-12-13 20:32:44,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 750 transitions, 27140 flow [2022-12-13 20:32:44,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:32:44,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 20:32:44,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2301 transitions. [2022-12-13 20:32:44,716 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45573380867498514 [2022-12-13 20:32:44,716 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2301 transitions. [2022-12-13 20:32:44,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2301 transitions. [2022-12-13 20:32:44,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:32:44,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2301 transitions. [2022-12-13 20:32:44,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 135.35294117647058) internal successors, (2301), 17 states have internal predecessors, (2301), 0 states have call successors, (0), 0 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 20:32:44,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:32:44,720 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:32:44,720 INFO L175 Difference]: Start difference. First operand has 399 places, 729 transitions, 25178 flow. Second operand 17 states and 2301 transitions. [2022-12-13 20:32:44,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 750 transitions, 27140 flow [2022-12-13 20:32:46,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 750 transitions, 26661 flow, removed 54 selfloop flow, removed 20 redundant places. [2022-12-13 20:32:46,257 INFO L231 Difference]: Finished difference. Result has 399 places, 734 transitions, 25219 flow [2022-12-13 20:32:46,257 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=24659, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=728, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=591, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=25219, PETRI_PLACES=399, PETRI_TRANSITIONS=734} [2022-12-13 20:32:46,257 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 361 predicate places. [2022-12-13 20:32:46,257 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 734 transitions, 25219 flow [2022-12-13 20:32:46,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 131.0) internal successors, (1703), 13 states have internal predecessors, (1703), 0 states have call successors, (0), 0 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 20:32:46,258 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:32:46,258 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:32:46,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-12-13 20:32:46,258 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:32:46,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:32:46,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1993769705, now seen corresponding path program 4 times [2022-12-13 20:32:46,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:32:46,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233310965] [2022-12-13 20:32:46,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:32:46,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:32:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:46,821 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 20:32:46,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:32:46,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233310965] [2022-12-13 20:32:46,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233310965] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:32:46,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:32:46,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:32:46,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805131786] [2022-12-13 20:32:46,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:32:46,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:32:46,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:32:46,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:32:46,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:32:47,371 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 297 [2022-12-13 20:32:47,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 734 transitions, 25219 flow. Second operand has 12 states, 12 states have (on average 134.08333333333334) internal successors, (1609), 12 states have internal predecessors, (1609), 0 states have call successors, (0), 0 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 20:32:47,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:32:47,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 297 [2022-12-13 20:32:47,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:32:51,001 INFO L130 PetriNetUnfolder]: 2592/6382 cut-off events. [2022-12-13 20:32:51,001 INFO L131 PetriNetUnfolder]: For 313006/313006 co-relation queries the response was YES. [2022-12-13 20:32:51,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67766 conditions, 6382 events. 2592/6382 cut-off events. For 313006/313006 co-relation queries the response was YES. Maximal size of possible extension queue 580. Compared 63358 event pairs, 1253 based on Foata normal form. 10/6392 useless extension candidates. Maximal degree in co-relation 67243. Up to 3309 conditions per place. [2022-12-13 20:32:51,070 INFO L137 encePairwiseOnDemand]: 284/297 looper letters, 610 selfloop transitions, 268 changer transitions 15/895 dead transitions. [2022-12-13 20:32:51,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 895 transitions, 31695 flow [2022-12-13 20:32:51,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-13 20:32:51,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-12-13 20:32:51,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3474 transitions. [2022-12-13 20:32:51,073 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4678787878787879 [2022-12-13 20:32:51,073 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3474 transitions. [2022-12-13 20:32:51,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3474 transitions. [2022-12-13 20:32:51,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:32:51,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3474 transitions. [2022-12-13 20:32:51,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 138.96) internal successors, (3474), 25 states have internal predecessors, (3474), 0 states have call successors, (0), 0 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 20:32:51,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 297.0) internal successors, (7722), 26 states have internal predecessors, (7722), 0 states have call successors, (0), 0 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 20:32:51,079 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 297.0) internal successors, (7722), 26 states have internal predecessors, (7722), 0 states have call successors, (0), 0 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 20:32:51,079 INFO L175 Difference]: Start difference. First operand has 399 places, 734 transitions, 25219 flow. Second operand 25 states and 3474 transitions. [2022-12-13 20:32:51,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 895 transitions, 31695 flow [2022-12-13 20:32:53,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 895 transitions, 31433 flow, removed 61 selfloop flow, removed 12 redundant places. [2022-12-13 20:32:53,055 INFO L231 Difference]: Finished difference. Result has 419 places, 777 transitions, 27348 flow [2022-12-13 20:32:53,056 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=24883, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=732, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=227, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=27348, PETRI_PLACES=419, PETRI_TRANSITIONS=777} [2022-12-13 20:32:53,056 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 381 predicate places. [2022-12-13 20:32:53,057 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 777 transitions, 27348 flow [2022-12-13 20:32:53,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 134.08333333333334) internal successors, (1609), 12 states have internal predecessors, (1609), 0 states have call successors, (0), 0 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 20:32:53,057 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:32:53,057 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:32:53,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-12-13 20:32:53,057 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:32:53,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:32:53,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1521115445, now seen corresponding path program 5 times [2022-12-13 20:32:53,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:32:53,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657076289] [2022-12-13 20:32:53,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:32:53,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:32:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:53,774 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 20:32:53,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:32:53,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657076289] [2022-12-13 20:32:53,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657076289] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:32:53,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:32:53,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:32:53,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467142502] [2022-12-13 20:32:53,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:32:53,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:32:53,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:32:53,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:32:53,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:32:54,349 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 297 [2022-12-13 20:32:54,350 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 777 transitions, 27348 flow. Second operand has 12 states, 12 states have (on average 134.08333333333334) internal successors, (1609), 12 states have internal predecessors, (1609), 0 states have call successors, (0), 0 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 20:32:54,350 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:32:54,350 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 297 [2022-12-13 20:32:54,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:32:57,742 INFO L130 PetriNetUnfolder]: 2687/6667 cut-off events. [2022-12-13 20:32:57,742 INFO L131 PetriNetUnfolder]: For 333407/333407 co-relation queries the response was YES. [2022-12-13 20:32:57,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71619 conditions, 6667 events. 2687/6667 cut-off events. For 333407/333407 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 67311 event pairs, 1435 based on Foata normal form. 1/6666 useless extension candidates. Maximal degree in co-relation 70754. Up to 5386 conditions per place. [2022-12-13 20:32:57,818 INFO L137 encePairwiseOnDemand]: 285/297 looper letters, 616 selfloop transitions, 234 changer transitions 2/854 dead transitions. [2022-12-13 20:32:57,818 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 854 transitions, 31203 flow [2022-12-13 20:32:57,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:32:57,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 20:32:57,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2358 transitions. [2022-12-13 20:32:57,820 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46702317290552586 [2022-12-13 20:32:57,820 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2358 transitions. [2022-12-13 20:32:57,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2358 transitions. [2022-12-13 20:32:57,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:32:57,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2358 transitions. [2022-12-13 20:32:57,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 138.7058823529412) internal successors, (2358), 17 states have internal predecessors, (2358), 0 states have call successors, (0), 0 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 20:32:57,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:32:57,825 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:32:57,825 INFO L175 Difference]: Start difference. First operand has 419 places, 777 transitions, 27348 flow. Second operand 17 states and 2358 transitions. [2022-12-13 20:32:57,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 854 transitions, 31203 flow [2022-12-13 20:32:59,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 854 transitions, 30718 flow, removed 218 selfloop flow, removed 8 redundant places. [2022-12-13 20:33:00,014 INFO L231 Difference]: Finished difference. Result has 430 places, 804 transitions, 28431 flow [2022-12-13 20:33:00,014 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=26875, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=776, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=206, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=551, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=28431, PETRI_PLACES=430, PETRI_TRANSITIONS=804} [2022-12-13 20:33:00,015 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 392 predicate places. [2022-12-13 20:33:00,015 INFO L495 AbstractCegarLoop]: Abstraction has has 430 places, 804 transitions, 28431 flow [2022-12-13 20:33:00,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 134.08333333333334) internal successors, (1609), 12 states have internal predecessors, (1609), 0 states have call successors, (0), 0 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 20:33:00,015 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:33:00,015 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:33:00,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-12-13 20:33:00,015 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:33:00,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:33:00,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1742040451, now seen corresponding path program 6 times [2022-12-13 20:33:00,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:33:00,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792781327] [2022-12-13 20:33:00,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:33:00,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:33:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:00,621 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 20:33:00,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:33:00,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792781327] [2022-12-13 20:33:00,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792781327] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:33:00,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:33:00,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:33:00,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267013616] [2022-12-13 20:33:00,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:33:00,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:33:00,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:33:00,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:33:00,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:33:01,168 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:33:01,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 804 transitions, 28431 flow. Second operand has 13 states, 13 states have (on average 131.0) internal successors, (1703), 13 states have internal predecessors, (1703), 0 states have call successors, (0), 0 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 20:33:01,169 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:33:01,169 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:33:01,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:33:05,218 INFO L130 PetriNetUnfolder]: 2692/6658 cut-off events. [2022-12-13 20:33:05,218 INFO L131 PetriNetUnfolder]: For 325855/325855 co-relation queries the response was YES. [2022-12-13 20:33:05,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70447 conditions, 6658 events. 2692/6658 cut-off events. For 325855/325855 co-relation queries the response was YES. Maximal size of possible extension queue 580. Compared 66793 event pairs, 1396 based on Foata normal form. 1/6649 useless extension candidates. Maximal degree in co-relation 69750. Up to 5736 conditions per place. [2022-12-13 20:33:05,287 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 594 selfloop transitions, 242 changer transitions 5/843 dead transitions. [2022-12-13 20:33:05,287 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 843 transitions, 30877 flow [2022-12-13 20:33:05,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-13 20:33:05,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-12-13 20:33:05,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3630 transitions. [2022-12-13 20:33:05,290 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45267489711934156 [2022-12-13 20:33:05,290 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 3630 transitions. [2022-12-13 20:33:05,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 3630 transitions. [2022-12-13 20:33:05,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:33:05,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 3630 transitions. [2022-12-13 20:33:05,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 134.44444444444446) internal successors, (3630), 27 states have internal predecessors, (3630), 0 states have call successors, (0), 0 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 20:33:05,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 297.0) internal successors, (8316), 28 states have internal predecessors, (8316), 0 states have call successors, (0), 0 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 20:33:05,296 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 297.0) internal successors, (8316), 28 states have internal predecessors, (8316), 0 states have call successors, (0), 0 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 20:33:05,296 INFO L175 Difference]: Start difference. First operand has 430 places, 804 transitions, 28431 flow. Second operand 27 states and 3630 transitions. [2022-12-13 20:33:05,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 843 transitions, 30877 flow [2022-12-13 20:33:07,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 843 transitions, 30328 flow, removed 69 selfloop flow, removed 6 redundant places. [2022-12-13 20:33:07,273 INFO L231 Difference]: Finished difference. Result has 454 places, 817 transitions, 28863 flow [2022-12-13 20:33:07,273 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=27800, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=802, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=227, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=28863, PETRI_PLACES=454, PETRI_TRANSITIONS=817} [2022-12-13 20:33:07,273 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 416 predicate places. [2022-12-13 20:33:07,274 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 817 transitions, 28863 flow [2022-12-13 20:33:07,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 131.0) internal successors, (1703), 13 states have internal predecessors, (1703), 0 states have call successors, (0), 0 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 20:33:07,274 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:33:07,274 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:33:07,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-12-13 20:33:07,274 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:33:07,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:33:07,274 INFO L85 PathProgramCache]: Analyzing trace with hash 68274389, now seen corresponding path program 1 times [2022-12-13 20:33:07,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:33:07,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204330713] [2022-12-13 20:33:07,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:33:07,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:33:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:07,621 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 20:33:07,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:33:07,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204330713] [2022-12-13 20:33:07,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204330713] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:33:07,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:33:07,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:33:07,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931597827] [2022-12-13 20:33:07,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:33:07,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:33:07,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:33:07,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:33:07,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:33:08,192 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 297 [2022-12-13 20:33:08,192 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 817 transitions, 28863 flow. Second operand has 11 states, 11 states have (on average 133.1818181818182) internal successors, (1465), 11 states have internal predecessors, (1465), 0 states have call successors, (0), 0 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 20:33:08,193 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:33:08,193 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 297 [2022-12-13 20:33:08,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:33:12,033 INFO L130 PetriNetUnfolder]: 2734/6836 cut-off events. [2022-12-13 20:33:12,033 INFO L131 PetriNetUnfolder]: For 327760/327760 co-relation queries the response was YES. [2022-12-13 20:33:12,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71493 conditions, 6836 events. 2734/6836 cut-off events. For 327760/327760 co-relation queries the response was YES. Maximal size of possible extension queue 636. Compared 69884 event pairs, 1070 based on Foata normal form. 12/6848 useless extension candidates. Maximal degree in co-relation 70911. Up to 2843 conditions per place. [2022-12-13 20:33:12,097 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 764 selfloop transitions, 133 changer transitions 69/968 dead transitions. [2022-12-13 20:33:12,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 968 transitions, 34629 flow [2022-12-13 20:33:12,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 20:33:12,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 20:33:12,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1821 transitions. [2022-12-13 20:33:12,099 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4716394716394716 [2022-12-13 20:33:12,099 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1821 transitions. [2022-12-13 20:33:12,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1821 transitions. [2022-12-13 20:33:12,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:33:12,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1821 transitions. [2022-12-13 20:33:12,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 140.07692307692307) internal successors, (1821), 13 states have internal predecessors, (1821), 0 states have call successors, (0), 0 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 20:33:12,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:33:12,102 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:33:12,102 INFO L175 Difference]: Start difference. First operand has 454 places, 817 transitions, 28863 flow. Second operand 13 states and 1821 transitions. [2022-12-13 20:33:12,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 968 transitions, 34629 flow [2022-12-13 20:33:13,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 968 transitions, 34177 flow, removed 55 selfloop flow, removed 19 redundant places. [2022-12-13 20:33:13,947 INFO L231 Difference]: Finished difference. Result has 453 places, 821 transitions, 28979 flow [2022-12-13 20:33:13,947 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=28430, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=817, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=28979, PETRI_PLACES=453, PETRI_TRANSITIONS=821} [2022-12-13 20:33:13,948 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 415 predicate places. [2022-12-13 20:33:13,948 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 821 transitions, 28979 flow [2022-12-13 20:33:13,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 133.1818181818182) internal successors, (1465), 11 states have internal predecessors, (1465), 0 states have call successors, (0), 0 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 20:33:13,948 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:33:13,948 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:33:13,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-12-13 20:33:13,948 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:33:13,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:33:13,948 INFO L85 PathProgramCache]: Analyzing trace with hash 536146913, now seen corresponding path program 7 times [2022-12-13 20:33:13,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:33:13,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918477758] [2022-12-13 20:33:13,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:33:13,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:33:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:14,611 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 20:33:14,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:33:14,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918477758] [2022-12-13 20:33:14,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918477758] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:33:14,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:33:14,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:33:14,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444343085] [2022-12-13 20:33:14,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:33:14,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:33:14,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:33:14,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:33:14,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:33:15,226 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:33:15,227 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 821 transitions, 28979 flow. Second operand has 13 states, 13 states have (on average 131.0) internal successors, (1703), 13 states have internal predecessors, (1703), 0 states have call successors, (0), 0 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 20:33:15,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:33:15,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:33:15,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:33:19,631 INFO L130 PetriNetUnfolder]: 2511/6377 cut-off events. [2022-12-13 20:33:19,631 INFO L131 PetriNetUnfolder]: For 316665/316665 co-relation queries the response was YES. [2022-12-13 20:33:19,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68367 conditions, 6377 events. 2511/6377 cut-off events. For 316665/316665 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 64852 event pairs, 1318 based on Foata normal form. 1/6369 useless extension candidates. Maximal degree in co-relation 68182. Up to 5446 conditions per place. [2022-12-13 20:33:19,708 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 585 selfloop transitions, 254 changer transitions 5/846 dead transitions. [2022-12-13 20:33:19,708 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 846 transitions, 31049 flow [2022-12-13 20:33:19,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-13 20:33:19,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-12-13 20:33:19,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3630 transitions. [2022-12-13 20:33:19,712 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45267489711934156 [2022-12-13 20:33:19,712 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 3630 transitions. [2022-12-13 20:33:19,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 3630 transitions. [2022-12-13 20:33:19,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:33:19,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 3630 transitions. [2022-12-13 20:33:19,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 134.44444444444446) internal successors, (3630), 27 states have internal predecessors, (3630), 0 states have call successors, (0), 0 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 20:33:19,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 297.0) internal successors, (8316), 28 states have internal predecessors, (8316), 0 states have call successors, (0), 0 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 20:33:19,719 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 297.0) internal successors, (8316), 28 states have internal predecessors, (8316), 0 states have call successors, (0), 0 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 20:33:19,719 INFO L175 Difference]: Start difference. First operand has 453 places, 821 transitions, 28979 flow. Second operand 27 states and 3630 transitions. [2022-12-13 20:33:19,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 846 transitions, 31049 flow [2022-12-13 20:33:21,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 846 transitions, 30843 flow, removed 41 selfloop flow, removed 8 redundant places. [2022-12-13 20:33:21,696 INFO L231 Difference]: Finished difference. Result has 471 places, 822 transitions, 29515 flow [2022-12-13 20:33:21,696 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=28728, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=820, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=252, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=29515, PETRI_PLACES=471, PETRI_TRANSITIONS=822} [2022-12-13 20:33:21,696 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 433 predicate places. [2022-12-13 20:33:21,696 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 822 transitions, 29515 flow [2022-12-13 20:33:21,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 131.0) internal successors, (1703), 13 states have internal predecessors, (1703), 0 states have call successors, (0), 0 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 20:33:21,697 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:33:21,697 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:33:21,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-12-13 20:33:21,697 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:33:21,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:33:21,697 INFO L85 PathProgramCache]: Analyzing trace with hash 536146912, now seen corresponding path program 1 times [2022-12-13 20:33:21,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:33:21,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342366379] [2022-12-13 20:33:21,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:33:21,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:33:21,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:22,220 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 20:33:22,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:33:22,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342366379] [2022-12-13 20:33:22,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342366379] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:33:22,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:33:22,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:33:22,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217356760] [2022-12-13 20:33:22,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:33:22,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:33:22,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:33:22,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:33:22,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:33:22,710 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 297 [2022-12-13 20:33:22,710 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 822 transitions, 29515 flow. Second operand has 12 states, 12 states have (on average 133.08333333333334) internal successors, (1597), 12 states have internal predecessors, (1597), 0 states have call successors, (0), 0 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 20:33:22,710 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:33:22,710 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 297 [2022-12-13 20:33:22,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:33:26,568 INFO L130 PetriNetUnfolder]: 2511/6375 cut-off events. [2022-12-13 20:33:26,568 INFO L131 PetriNetUnfolder]: For 318204/318204 co-relation queries the response was YES. [2022-12-13 20:33:26,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68485 conditions, 6375 events. 2511/6375 cut-off events. For 318204/318204 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 64693 event pairs, 854 based on Foata normal form. 1/6376 useless extension candidates. Maximal degree in co-relation 67900. Up to 3370 conditions per place. [2022-12-13 20:33:26,651 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 465 selfloop transitions, 424 changer transitions 10/901 dead transitions. [2022-12-13 20:33:26,651 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 901 transitions, 32785 flow [2022-12-13 20:33:26,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 20:33:26,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 20:33:26,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2081 transitions. [2022-12-13 20:33:26,654 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4671156004489338 [2022-12-13 20:33:26,654 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2081 transitions. [2022-12-13 20:33:26,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2081 transitions. [2022-12-13 20:33:26,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:33:26,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2081 transitions. [2022-12-13 20:33:26,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 138.73333333333332) internal successors, (2081), 15 states have internal predecessors, (2081), 0 states have call successors, (0), 0 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 20:33:26,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 297.0) internal successors, (4752), 16 states have internal predecessors, (4752), 0 states have call successors, (0), 0 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 20:33:26,659 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 297.0) internal successors, (4752), 16 states have internal predecessors, (4752), 0 states have call successors, (0), 0 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 20:33:26,659 INFO L175 Difference]: Start difference. First operand has 471 places, 822 transitions, 29515 flow. Second operand 15 states and 2081 transitions. [2022-12-13 20:33:26,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 901 transitions, 32785 flow [2022-12-13 20:33:28,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 901 transitions, 32199 flow, removed 18 selfloop flow, removed 22 redundant places. [2022-12-13 20:33:28,789 INFO L231 Difference]: Finished difference. Result has 463 places, 820 transitions, 29666 flow [2022-12-13 20:33:28,790 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=28818, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=820, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=424, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=29666, PETRI_PLACES=463, PETRI_TRANSITIONS=820} [2022-12-13 20:33:28,790 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 425 predicate places. [2022-12-13 20:33:28,790 INFO L495 AbstractCegarLoop]: Abstraction has has 463 places, 820 transitions, 29666 flow [2022-12-13 20:33:28,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 133.08333333333334) internal successors, (1597), 12 states have internal predecessors, (1597), 0 states have call successors, (0), 0 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 20:33:28,790 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:33:28,790 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:33:28,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-12-13 20:33:28,791 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:33:28,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:33:28,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1141995766, now seen corresponding path program 1 times [2022-12-13 20:33:28,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:33:28,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795550278] [2022-12-13 20:33:28,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:33:28,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:33:28,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:29,242 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 20:33:29,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:33:29,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795550278] [2022-12-13 20:33:29,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795550278] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:33:29,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:33:29,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:33:29,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43693983] [2022-12-13 20:33:29,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:33:29,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:33:29,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:33:29,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:33:29,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:33:29,803 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2022-12-13 20:33:29,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 820 transitions, 29666 flow. Second operand has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 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 20:33:29,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:33:29,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2022-12-13 20:33:29,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:33:33,817 INFO L130 PetriNetUnfolder]: 2633/7068 cut-off events. [2022-12-13 20:33:33,818 INFO L131 PetriNetUnfolder]: For 357990/357990 co-relation queries the response was YES. [2022-12-13 20:33:33,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75223 conditions, 7068 events. 2633/7068 cut-off events. For 357990/357990 co-relation queries the response was YES. Maximal size of possible extension queue 712. Compared 76241 event pairs, 821 based on Foata normal form. 185/7239 useless extension candidates. Maximal degree in co-relation 74607. Up to 2769 conditions per place. [2022-12-13 20:33:33,902 INFO L137 encePairwiseOnDemand]: 280/297 looper letters, 596 selfloop transitions, 349 changer transitions 27/974 dead transitions. [2022-12-13 20:33:33,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 974 transitions, 35854 flow [2022-12-13 20:33:33,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 20:33:33,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 20:33:33,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2451 transitions. [2022-12-13 20:33:33,904 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45847362514029183 [2022-12-13 20:33:33,904 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2451 transitions. [2022-12-13 20:33:33,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2451 transitions. [2022-12-13 20:33:33,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:33:33,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2451 transitions. [2022-12-13 20:33:33,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.16666666666666) internal successors, (2451), 18 states have internal predecessors, (2451), 0 states have call successors, (0), 0 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 20:33:33,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 297.0) internal successors, (5643), 19 states have internal predecessors, (5643), 0 states have call successors, (0), 0 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 20:33:33,908 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 297.0) internal successors, (5643), 19 states have internal predecessors, (5643), 0 states have call successors, (0), 0 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 20:33:33,908 INFO L175 Difference]: Start difference. First operand has 463 places, 820 transitions, 29666 flow. Second operand 18 states and 2451 transitions. [2022-12-13 20:33:33,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 974 transitions, 35854 flow [2022-12-13 20:33:36,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 974 transitions, 34979 flow, removed 47 selfloop flow, removed 11 redundant places. [2022-12-13 20:33:36,194 INFO L231 Difference]: Finished difference. Result has 478 places, 877 transitions, 32484 flow [2022-12-13 20:33:36,195 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=28863, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=820, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=284, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=32484, PETRI_PLACES=478, PETRI_TRANSITIONS=877} [2022-12-13 20:33:36,195 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 440 predicate places. [2022-12-13 20:33:36,195 INFO L495 AbstractCegarLoop]: Abstraction has has 478 places, 877 transitions, 32484 flow [2022-12-13 20:33:36,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 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 20:33:36,195 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:33:36,196 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:33:36,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-12-13 20:33:36,196 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:33:36,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:33:36,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1342319856, now seen corresponding path program 2 times [2022-12-13 20:33:36,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:33:36,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330266990] [2022-12-13 20:33:36,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:33:36,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:33:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:36,767 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 20:33:36,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:33:36,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330266990] [2022-12-13 20:33:36,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330266990] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:33:36,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:33:36,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:33:36,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662843757] [2022-12-13 20:33:36,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:33:36,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:33:36,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:33:36,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:33:36,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:33:37,485 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:33:37,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 877 transitions, 32484 flow. Second operand has 12 states, 12 states have (on average 131.08333333333334) internal successors, (1573), 12 states have internal predecessors, (1573), 0 states have call successors, (0), 0 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 20:33:37,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:33:37,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:33:37,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:33:41,403 INFO L130 PetriNetUnfolder]: 2595/6978 cut-off events. [2022-12-13 20:33:41,403 INFO L131 PetriNetUnfolder]: For 387453/387453 co-relation queries the response was YES. [2022-12-13 20:33:41,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78080 conditions, 6978 events. 2595/6978 cut-off events. For 387453/387453 co-relation queries the response was YES. Maximal size of possible extension queue 691. Compared 74955 event pairs, 1390 based on Foata normal form. 14/6991 useless extension candidates. Maximal degree in co-relation 77576. Up to 4523 conditions per place. [2022-12-13 20:33:41,500 INFO L137 encePairwiseOnDemand]: 284/297 looper letters, 767 selfloop transitions, 195 changer transitions 14/978 dead transitions. [2022-12-13 20:33:41,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 978 transitions, 37375 flow [2022-12-13 20:33:41,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 20:33:41,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 20:33:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1639 transitions. [2022-12-13 20:33:41,502 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45987654320987653 [2022-12-13 20:33:41,502 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1639 transitions. [2022-12-13 20:33:41,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1639 transitions. [2022-12-13 20:33:41,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:33:41,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1639 transitions. [2022-12-13 20:33:41,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.58333333333334) internal successors, (1639), 12 states have internal predecessors, (1639), 0 states have call successors, (0), 0 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 20:33:41,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:33:41,505 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:33:41,505 INFO L175 Difference]: Start difference. First operand has 478 places, 877 transitions, 32484 flow. Second operand 12 states and 1639 transitions. [2022-12-13 20:33:41,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 978 transitions, 37375 flow [2022-12-13 20:33:43,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 978 transitions, 36854 flow, removed 141 selfloop flow, removed 11 redundant places. [2022-12-13 20:33:43,944 INFO L231 Difference]: Finished difference. Result has 480 places, 910 transitions, 33868 flow [2022-12-13 20:33:43,945 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=31575, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=867, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=678, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=33868, PETRI_PLACES=480, PETRI_TRANSITIONS=910} [2022-12-13 20:33:43,945 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 442 predicate places. [2022-12-13 20:33:43,945 INFO L495 AbstractCegarLoop]: Abstraction has has 480 places, 910 transitions, 33868 flow [2022-12-13 20:33:43,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 131.08333333333334) internal successors, (1573), 12 states have internal predecessors, (1573), 0 states have call successors, (0), 0 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 20:33:43,945 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:33:43,945 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:33:43,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-12-13 20:33:43,946 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:33:43,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:33:43,946 INFO L85 PathProgramCache]: Analyzing trace with hash 888044296, now seen corresponding path program 2 times [2022-12-13 20:33:43,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:33:43,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873316968] [2022-12-13 20:33:43,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:33:43,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:33:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:44,328 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 20:33:44,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:33:44,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873316968] [2022-12-13 20:33:44,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873316968] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:33:44,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:33:44,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:33:44,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666670353] [2022-12-13 20:33:44,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:33:44,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:33:44,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:33:44,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:33:44,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:33:44,713 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 297 [2022-12-13 20:33:44,714 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 910 transitions, 33868 flow. Second operand has 11 states, 11 states have (on average 133.1818181818182) internal successors, (1465), 11 states have internal predecessors, (1465), 0 states have call successors, (0), 0 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 20:33:44,714 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:33:44,714 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 297 [2022-12-13 20:33:44,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:33:48,970 INFO L130 PetriNetUnfolder]: 2560/6916 cut-off events. [2022-12-13 20:33:48,970 INFO L131 PetriNetUnfolder]: For 373162/373162 co-relation queries the response was YES. [2022-12-13 20:33:49,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76910 conditions, 6916 events. 2560/6916 cut-off events. For 373162/373162 co-relation queries the response was YES. Maximal size of possible extension queue 685. Compared 74469 event pairs, 945 based on Foata normal form. 28/6944 useless extension candidates. Maximal degree in co-relation 76522. Up to 2328 conditions per place. [2022-12-13 20:33:49,048 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 765 selfloop transitions, 218 changer transitions 21/1006 dead transitions. [2022-12-13 20:33:49,048 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 1006 transitions, 38015 flow [2022-12-13 20:33:49,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 20:33:49,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 20:33:49,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2087 transitions. [2022-12-13 20:33:49,050 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4684624017957351 [2022-12-13 20:33:49,050 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2087 transitions. [2022-12-13 20:33:49,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2087 transitions. [2022-12-13 20:33:49,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:33:49,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2087 transitions. [2022-12-13 20:33:49,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 139.13333333333333) internal successors, (2087), 15 states have internal predecessors, (2087), 0 states have call successors, (0), 0 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 20:33:49,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 297.0) internal successors, (4752), 16 states have internal predecessors, (4752), 0 states have call successors, (0), 0 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 20:33:49,054 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 297.0) internal successors, (4752), 16 states have internal predecessors, (4752), 0 states have call successors, (0), 0 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 20:33:49,054 INFO L175 Difference]: Start difference. First operand has 480 places, 910 transitions, 33868 flow. Second operand 15 states and 2087 transitions. [2022-12-13 20:33:49,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 1006 transitions, 38015 flow [2022-12-13 20:33:51,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 1006 transitions, 37732 flow, removed 64 selfloop flow, removed 6 redundant places. [2022-12-13 20:33:51,440 INFO L231 Difference]: Finished difference. Result has 490 places, 915 transitions, 34240 flow [2022-12-13 20:33:51,441 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=33416, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=906, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=209, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=692, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=34240, PETRI_PLACES=490, PETRI_TRANSITIONS=915} [2022-12-13 20:33:51,441 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 452 predicate places. [2022-12-13 20:33:51,441 INFO L495 AbstractCegarLoop]: Abstraction has has 490 places, 915 transitions, 34240 flow [2022-12-13 20:33:51,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 133.1818181818182) internal successors, (1465), 11 states have internal predecessors, (1465), 0 states have call successors, (0), 0 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 20:33:51,441 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:33:51,441 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:33:51,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-12-13 20:33:51,441 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:33:51,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:33:51,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1689097875, now seen corresponding path program 2 times [2022-12-13 20:33:51,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:33:51,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382569935] [2022-12-13 20:33:51,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:33:51,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:33:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:51,803 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 20:33:51,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:33:51,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382569935] [2022-12-13 20:33:51,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382569935] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:33:51,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:33:51,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:33:51,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928733363] [2022-12-13 20:33:51,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:33:51,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:33:51,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:33:51,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:33:51,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:33:52,260 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 297 [2022-12-13 20:33:52,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 915 transitions, 34240 flow. Second operand has 11 states, 11 states have (on average 132.1818181818182) internal successors, (1454), 11 states have internal predecessors, (1454), 0 states have call successors, (0), 0 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 20:33:52,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:33:52,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 297 [2022-12-13 20:33:52,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:33:56,992 INFO L130 PetriNetUnfolder]: 2717/7540 cut-off events. [2022-12-13 20:33:56,992 INFO L131 PetriNetUnfolder]: For 411257/411257 co-relation queries the response was YES. [2022-12-13 20:33:57,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84132 conditions, 7540 events. 2717/7540 cut-off events. For 411257/411257 co-relation queries the response was YES. Maximal size of possible extension queue 790. Compared 84436 event pairs, 879 based on Foata normal form. 48/7588 useless extension candidates. Maximal degree in co-relation 83743. Up to 2789 conditions per place. [2022-12-13 20:33:57,071 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 691 selfloop transitions, 288 changer transitions 159/1140 dead transitions. [2022-12-13 20:33:57,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 1140 transitions, 43144 flow [2022-12-13 20:33:57,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:33:57,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 20:33:57,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2373 transitions. [2022-12-13 20:33:57,073 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46999405822935236 [2022-12-13 20:33:57,073 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2373 transitions. [2022-12-13 20:33:57,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2373 transitions. [2022-12-13 20:33:57,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:33:57,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2373 transitions. [2022-12-13 20:33:57,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 139.58823529411765) internal successors, (2373), 17 states have internal predecessors, (2373), 0 states have call successors, (0), 0 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 20:33:57,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:33:57,077 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:33:57,077 INFO L175 Difference]: Start difference. First operand has 490 places, 915 transitions, 34240 flow. Second operand 17 states and 2373 transitions. [2022-12-13 20:33:57,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 1140 transitions, 43144 flow [2022-12-13 20:33:59,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 1140 transitions, 42701 flow, removed 140 selfloop flow, removed 7 redundant places. [2022-12-13 20:33:59,507 INFO L231 Difference]: Finished difference. Result has 504 places, 921 transitions, 34715 flow [2022-12-13 20:33:59,508 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=33894, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=915, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=273, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=34715, PETRI_PLACES=504, PETRI_TRANSITIONS=921} [2022-12-13 20:33:59,508 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 466 predicate places. [2022-12-13 20:33:59,508 INFO L495 AbstractCegarLoop]: Abstraction has has 504 places, 921 transitions, 34715 flow [2022-12-13 20:33:59,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 132.1818181818182) internal successors, (1454), 11 states have internal predecessors, (1454), 0 states have call successors, (0), 0 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 20:33:59,508 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:33:59,508 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:33:59,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-12-13 20:33:59,508 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:33:59,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:33:59,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1591753848, now seen corresponding path program 3 times [2022-12-13 20:33:59,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:33:59,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365321130] [2022-12-13 20:33:59,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:33:59,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:33:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:59,917 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 20:33:59,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:33:59,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365321130] [2022-12-13 20:33:59,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365321130] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:33:59,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:33:59,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:33:59,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106542101] [2022-12-13 20:33:59,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:33:59,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:33:59,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:33:59,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:33:59,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:34:00,342 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 297 [2022-12-13 20:34:00,342 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 921 transitions, 34715 flow. Second operand has 11 states, 11 states have (on average 132.1818181818182) internal successors, (1454), 11 states have internal predecessors, (1454), 0 states have call successors, (0), 0 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 20:34:00,343 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:34:00,343 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 297 [2022-12-13 20:34:00,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:34:04,753 INFO L130 PetriNetUnfolder]: 2497/7088 cut-off events. [2022-12-13 20:34:04,753 INFO L131 PetriNetUnfolder]: For 398061/398061 co-relation queries the response was YES. [2022-12-13 20:34:04,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80846 conditions, 7088 events. 2497/7088 cut-off events. For 398061/398061 co-relation queries the response was YES. Maximal size of possible extension queue 747. Compared 79382 event pairs, 942 based on Foata normal form. 14/7092 useless extension candidates. Maximal degree in co-relation 80475. Up to 2761 conditions per place. [2022-12-13 20:34:04,825 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 659 selfloop transitions, 331 changer transitions 14/1006 dead transitions. [2022-12-13 20:34:04,825 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 1006 transitions, 38787 flow [2022-12-13 20:34:04,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:34:04,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 20:34:04,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1944 transitions. [2022-12-13 20:34:04,827 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4675324675324675 [2022-12-13 20:34:04,827 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1944 transitions. [2022-12-13 20:34:04,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1944 transitions. [2022-12-13 20:34:04,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:34:04,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1944 transitions. [2022-12-13 20:34:04,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 138.85714285714286) internal successors, (1944), 14 states have internal predecessors, (1944), 0 states have call successors, (0), 0 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 20:34:04,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 297.0) internal successors, (4455), 15 states have internal predecessors, (4455), 0 states have call successors, (0), 0 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 20:34:04,830 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 297.0) internal successors, (4455), 15 states have internal predecessors, (4455), 0 states have call successors, (0), 0 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 20:34:04,830 INFO L175 Difference]: Start difference. First operand has 504 places, 921 transitions, 34715 flow. Second operand 14 states and 1944 transitions. [2022-12-13 20:34:04,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 1006 transitions, 38787 flow [2022-12-13 20:34:07,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 1006 transitions, 38391 flow, removed 20 selfloop flow, removed 9 redundant places. [2022-12-13 20:34:07,082 INFO L231 Difference]: Finished difference. Result has 507 places, 931 transitions, 35435 flow [2022-12-13 20:34:07,083 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=34334, PETRI_DIFFERENCE_MINUEND_PLACES=492, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=921, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=321, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=597, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=35435, PETRI_PLACES=507, PETRI_TRANSITIONS=931} [2022-12-13 20:34:07,083 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 469 predicate places. [2022-12-13 20:34:07,083 INFO L495 AbstractCegarLoop]: Abstraction has has 507 places, 931 transitions, 35435 flow [2022-12-13 20:34:07,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 132.1818181818182) internal successors, (1454), 11 states have internal predecessors, (1454), 0 states have call successors, (0), 0 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 20:34:07,083 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:34:07,083 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:34:07,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-12-13 20:34:07,083 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:34:07,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:34:07,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1591738965, now seen corresponding path program 3 times [2022-12-13 20:34:07,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:34:07,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999484183] [2022-12-13 20:34:07,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:34:07,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:34:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:34:07,459 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 20:34:07,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:34:07,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999484183] [2022-12-13 20:34:07,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999484183] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:34:07,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:34:07,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:34:07,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872736286] [2022-12-13 20:34:07,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:34:07,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:34:07,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:34:07,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:34:07,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:34:07,934 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 297 [2022-12-13 20:34:07,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 931 transitions, 35435 flow. Second operand has 11 states, 11 states have (on average 132.1818181818182) internal successors, (1454), 11 states have internal predecessors, (1454), 0 states have call successors, (0), 0 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 20:34:07,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:34:07,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 297 [2022-12-13 20:34:07,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:34:12,356 INFO L130 PetriNetUnfolder]: 2480/7067 cut-off events. [2022-12-13 20:34:12,356 INFO L131 PetriNetUnfolder]: For 398612/398612 co-relation queries the response was YES. [2022-12-13 20:34:12,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80226 conditions, 7067 events. 2480/7067 cut-off events. For 398612/398612 co-relation queries the response was YES. Maximal size of possible extension queue 755. Compared 79298 event pairs, 959 based on Foata normal form. 12/7069 useless extension candidates. Maximal degree in co-relation 79876. Up to 2789 conditions per place. [2022-12-13 20:34:12,450 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 687 selfloop transitions, 278 changer transitions 31/998 dead transitions. [2022-12-13 20:34:12,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 998 transitions, 38951 flow [2022-12-13 20:34:12,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 20:34:12,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 20:34:12,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1666 transitions. [2022-12-13 20:34:12,452 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4674523007856341 [2022-12-13 20:34:12,452 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1666 transitions. [2022-12-13 20:34:12,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1666 transitions. [2022-12-13 20:34:12,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:34:12,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1666 transitions. [2022-12-13 20:34:12,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 138.83333333333334) internal successors, (1666), 12 states have internal predecessors, (1666), 0 states have call successors, (0), 0 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 20:34:12,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:34:12,455 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:34:12,455 INFO L175 Difference]: Start difference. First operand has 507 places, 931 transitions, 35435 flow. Second operand 12 states and 1666 transitions. [2022-12-13 20:34:12,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 998 transitions, 38951 flow [2022-12-13 20:34:14,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 998 transitions, 38480 flow, removed 35 selfloop flow, removed 7 redundant places. [2022-12-13 20:34:14,967 INFO L231 Difference]: Finished difference. Result has 513 places, 926 transitions, 35324 flow [2022-12-13 20:34:14,967 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=34992, PETRI_DIFFERENCE_MINUEND_PLACES=500, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=931, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=278, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=653, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=35324, PETRI_PLACES=513, PETRI_TRANSITIONS=926} [2022-12-13 20:34:14,967 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 475 predicate places. [2022-12-13 20:34:14,967 INFO L495 AbstractCegarLoop]: Abstraction has has 513 places, 926 transitions, 35324 flow [2022-12-13 20:34:14,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 132.1818181818182) internal successors, (1454), 11 states have internal predecessors, (1454), 0 states have call successors, (0), 0 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 20:34:14,968 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:34:14,968 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:34:14,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-12-13 20:34:14,968 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:34:14,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:34:14,968 INFO L85 PathProgramCache]: Analyzing trace with hash -121334825, now seen corresponding path program 8 times [2022-12-13 20:34:14,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:34:14,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448894822] [2022-12-13 20:34:14,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:34:14,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:34:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:34:15,629 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 20:34:15,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:34:15,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448894822] [2022-12-13 20:34:15,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448894822] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:34:15,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:34:15,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:34:15,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160889615] [2022-12-13 20:34:15,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:34:15,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:34:15,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:34:15,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:34:15,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:34:16,181 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:34:16,182 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 926 transitions, 35324 flow. Second operand has 14 states, 14 states have (on average 130.92857142857142) internal successors, (1833), 14 states have internal predecessors, (1833), 0 states have call successors, (0), 0 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 20:34:16,182 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:34:16,182 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:34:16,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:34:20,825 INFO L130 PetriNetUnfolder]: 2439/6901 cut-off events. [2022-12-13 20:34:20,825 INFO L131 PetriNetUnfolder]: For 400674/400674 co-relation queries the response was YES. [2022-12-13 20:34:20,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79652 conditions, 6901 events. 2439/6901 cut-off events. For 400674/400674 co-relation queries the response was YES. Maximal size of possible extension queue 734. Compared 76765 event pairs, 1417 based on Foata normal form. 2/6880 useless extension candidates. Maximal degree in co-relation 79301. Up to 6001 conditions per place. [2022-12-13 20:34:20,918 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 718 selfloop transitions, 218 changer transitions 8/946 dead transitions. [2022-12-13 20:34:20,918 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 946 transitions, 37615 flow [2022-12-13 20:34:20,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 20:34:20,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-13 20:34:20,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2571 transitions. [2022-12-13 20:34:20,920 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4556087187666135 [2022-12-13 20:34:20,920 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2571 transitions. [2022-12-13 20:34:20,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2571 transitions. [2022-12-13 20:34:20,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:34:20,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2571 transitions. [2022-12-13 20:34:20,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 135.31578947368422) internal successors, (2571), 19 states have internal predecessors, (2571), 0 states have call successors, (0), 0 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 20:34:20,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 297.0) internal successors, (5940), 20 states have internal predecessors, (5940), 0 states have call successors, (0), 0 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 20:34:20,925 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 297.0) internal successors, (5940), 20 states have internal predecessors, (5940), 0 states have call successors, (0), 0 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 20:34:20,925 INFO L175 Difference]: Start difference. First operand has 513 places, 926 transitions, 35324 flow. Second operand 19 states and 2571 transitions. [2022-12-13 20:34:20,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 946 transitions, 37615 flow [2022-12-13 20:34:23,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 517 places, 946 transitions, 36926 flow, removed 16 selfloop flow, removed 11 redundant places. [2022-12-13 20:34:23,589 INFO L231 Difference]: Finished difference. Result has 519 places, 926 transitions, 35200 flow [2022-12-13 20:34:23,589 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=34551, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=924, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=214, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=709, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=35200, PETRI_PLACES=519, PETRI_TRANSITIONS=926} [2022-12-13 20:34:23,590 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 481 predicate places. [2022-12-13 20:34:23,590 INFO L495 AbstractCegarLoop]: Abstraction has has 519 places, 926 transitions, 35200 flow [2022-12-13 20:34:23,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 130.92857142857142) internal successors, (1833), 14 states have internal predecessors, (1833), 0 states have call successors, (0), 0 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 20:34:23,590 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:34:23,590 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:34:23,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-12-13 20:34:23,591 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:34:23,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:34:23,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1692149205, now seen corresponding path program 4 times [2022-12-13 20:34:23,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:34:23,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472841139] [2022-12-13 20:34:23,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:34:23,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:34:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:34:24,101 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 20:34:24,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:34:24,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472841139] [2022-12-13 20:34:24,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472841139] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:34:24,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:34:24,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:34:24,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926498444] [2022-12-13 20:34:24,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:34:24,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:34:24,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:34:24,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:34:24,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:34:24,592 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 297 [2022-12-13 20:34:24,593 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 519 places, 926 transitions, 35200 flow. Second operand has 11 states, 11 states have (on average 132.1818181818182) internal successors, (1454), 11 states have internal predecessors, (1454), 0 states have call successors, (0), 0 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 20:34:24,593 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:34:24,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 297 [2022-12-13 20:34:24,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:34:29,117 INFO L130 PetriNetUnfolder]: 2422/6828 cut-off events. [2022-12-13 20:34:29,117 INFO L131 PetriNetUnfolder]: For 384558/384558 co-relation queries the response was YES. [2022-12-13 20:34:29,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77907 conditions, 6828 events. 2422/6828 cut-off events. For 384558/384558 co-relation queries the response was YES. Maximal size of possible extension queue 722. Compared 75690 event pairs, 825 based on Foata normal form. 18/6846 useless extension candidates. Maximal degree in co-relation 77561. Up to 2761 conditions per place. [2022-12-13 20:34:29,207 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 649 selfloop transitions, 324 changer transitions 29/1004 dead transitions. [2022-12-13 20:34:29,207 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 535 places, 1004 transitions, 38738 flow [2022-12-13 20:34:29,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:34:29,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 20:34:29,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2345 transitions. [2022-12-13 20:34:29,209 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4644484056248762 [2022-12-13 20:34:29,209 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2345 transitions. [2022-12-13 20:34:29,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2345 transitions. [2022-12-13 20:34:29,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:34:29,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2345 transitions. [2022-12-13 20:34:29,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 137.94117647058823) internal successors, (2345), 17 states have internal predecessors, (2345), 0 states have call successors, (0), 0 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 20:34:29,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:34:29,213 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:34:29,213 INFO L175 Difference]: Start difference. First operand has 519 places, 926 transitions, 35200 flow. Second operand 17 states and 2345 transitions. [2022-12-13 20:34:29,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 535 places, 1004 transitions, 38738 flow [2022-12-13 20:34:31,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 523 places, 1004 transitions, 38236 flow, removed 53 selfloop flow, removed 12 redundant places. [2022-12-13 20:34:31,631 INFO L231 Difference]: Finished difference. Result has 525 places, 922 transitions, 35270 flow [2022-12-13 20:34:31,632 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=34701, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=926, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=321, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=602, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=35270, PETRI_PLACES=525, PETRI_TRANSITIONS=922} [2022-12-13 20:34:31,632 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 487 predicate places. [2022-12-13 20:34:31,632 INFO L495 AbstractCegarLoop]: Abstraction has has 525 places, 922 transitions, 35270 flow [2022-12-13 20:34:31,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 132.1818181818182) internal successors, (1454), 11 states have internal predecessors, (1454), 0 states have call successors, (0), 0 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 20:34:31,633 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:34:31,633 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:34:31,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-12-13 20:34:31,633 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:34:31,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:34:31,633 INFO L85 PathProgramCache]: Analyzing trace with hash 220135946, now seen corresponding path program 4 times [2022-12-13 20:34:31,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:34:31,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950674263] [2022-12-13 20:34:31,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:34:31,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:34:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:34:31,984 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 20:34:31,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:34:31,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950674263] [2022-12-13 20:34:31,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950674263] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:34:31,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:34:31,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:34:31,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212357955] [2022-12-13 20:34:31,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:34:31,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:34:31,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:34:31,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:34:31,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:34:32,439 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 297 [2022-12-13 20:34:32,439 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 922 transitions, 35270 flow. Second operand has 11 states, 11 states have (on average 133.1818181818182) internal successors, (1465), 11 states have internal predecessors, (1465), 0 states have call successors, (0), 0 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 20:34:32,439 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:34:32,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 297 [2022-12-13 20:34:32,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:34:36,945 INFO L130 PetriNetUnfolder]: 2354/6654 cut-off events. [2022-12-13 20:34:36,945 INFO L131 PetriNetUnfolder]: For 385485/385485 co-relation queries the response was YES. [2022-12-13 20:34:37,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76412 conditions, 6654 events. 2354/6654 cut-off events. For 385485/385485 co-relation queries the response was YES. Maximal size of possible extension queue 684. Compared 73247 event pairs, 906 based on Foata normal form. 28/6672 useless extension candidates. Maximal degree in co-relation 76066. Up to 2761 conditions per place. [2022-12-13 20:34:37,032 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 680 selfloop transitions, 324 changer transitions 5/1011 dead transitions. [2022-12-13 20:34:37,032 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 1011 transitions, 39291 flow [2022-12-13 20:34:37,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 20:34:37,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 20:34:37,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2099 transitions. [2022-12-13 20:34:37,034 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4711560044893378 [2022-12-13 20:34:37,034 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2099 transitions. [2022-12-13 20:34:37,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2099 transitions. [2022-12-13 20:34:37,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:34:37,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2099 transitions. [2022-12-13 20:34:37,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 139.93333333333334) internal successors, (2099), 15 states have internal predecessors, (2099), 0 states have call successors, (0), 0 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 20:34:37,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 297.0) internal successors, (4752), 16 states have internal predecessors, (4752), 0 states have call successors, (0), 0 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 20:34:37,037 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 297.0) internal successors, (4752), 16 states have internal predecessors, (4752), 0 states have call successors, (0), 0 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 20:34:37,037 INFO L175 Difference]: Start difference. First operand has 525 places, 922 transitions, 35270 flow. Second operand 15 states and 2099 transitions. [2022-12-13 20:34:37,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 1011 transitions, 39291 flow [2022-12-13 20:34:39,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 518 places, 1011 transitions, 38630 flow, removed 7 selfloop flow, removed 16 redundant places. [2022-12-13 20:34:39,307 INFO L231 Difference]: Finished difference. Result has 520 places, 930 transitions, 35618 flow [2022-12-13 20:34:39,308 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=34356, PETRI_DIFFERENCE_MINUEND_PLACES=504, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=916, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=310, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=600, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=35618, PETRI_PLACES=520, PETRI_TRANSITIONS=930} [2022-12-13 20:34:39,308 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 482 predicate places. [2022-12-13 20:34:39,308 INFO L495 AbstractCegarLoop]: Abstraction has has 520 places, 930 transitions, 35618 flow [2022-12-13 20:34:39,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 133.1818181818182) internal successors, (1465), 11 states have internal predecessors, (1465), 0 states have call successors, (0), 0 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 20:34:39,309 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:34:39,309 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:34:39,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-12-13 20:34:39,309 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:34:39,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:34:39,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1495219647, now seen corresponding path program 5 times [2022-12-13 20:34:39,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:34:39,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869520656] [2022-12-13 20:34:39,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:34:39,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:34:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:34:39,657 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 20:34:39,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:34:39,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869520656] [2022-12-13 20:34:39,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869520656] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:34:39,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:34:39,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:34:39,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026498442] [2022-12-13 20:34:39,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:34:39,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:34:39,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:34:39,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:34:39,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:34:40,144 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 297 [2022-12-13 20:34:40,145 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 930 transitions, 35618 flow. Second operand has 11 states, 11 states have (on average 133.1818181818182) internal successors, (1465), 11 states have internal predecessors, (1465), 0 states have call successors, (0), 0 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 20:34:40,145 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:34:40,145 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 297 [2022-12-13 20:34:40,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:34:44,296 INFO L130 PetriNetUnfolder]: 2325/6559 cut-off events. [2022-12-13 20:34:44,296 INFO L131 PetriNetUnfolder]: For 383309/383309 co-relation queries the response was YES. [2022-12-13 20:34:44,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75993 conditions, 6559 events. 2325/6559 cut-off events. For 383309/383309 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 71931 event pairs, 827 based on Foata normal form. 36/6595 useless extension candidates. Maximal degree in co-relation 75645. Up to 2039 conditions per place. [2022-12-13 20:34:44,380 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 755 selfloop transitions, 188 changer transitions 58/1003 dead transitions. [2022-12-13 20:34:44,380 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 1003 transitions, 39305 flow [2022-12-13 20:34:44,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:34:44,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 20:34:44,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1943 transitions. [2022-12-13 20:34:44,382 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4672919672919673 [2022-12-13 20:34:44,382 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1943 transitions. [2022-12-13 20:34:44,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1943 transitions. [2022-12-13 20:34:44,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:34:44,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1943 transitions. [2022-12-13 20:34:44,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 138.78571428571428) internal successors, (1943), 14 states have internal predecessors, (1943), 0 states have call successors, (0), 0 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 20:34:44,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 297.0) internal successors, (4455), 15 states have internal predecessors, (4455), 0 states have call successors, (0), 0 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 20:34:44,386 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 297.0) internal successors, (4455), 15 states have internal predecessors, (4455), 0 states have call successors, (0), 0 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 20:34:44,386 INFO L175 Difference]: Start difference. First operand has 520 places, 930 transitions, 35618 flow. Second operand 14 states and 1943 transitions. [2022-12-13 20:34:44,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 1003 transitions, 39305 flow [2022-12-13 20:34:46,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 1003 transitions, 38937 flow, removed 63 selfloop flow, removed 8 redundant places. [2022-12-13 20:34:46,719 INFO L231 Difference]: Finished difference. Result has 527 places, 902 transitions, 34527 flow [2022-12-13 20:34:46,720 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=35254, PETRI_DIFFERENCE_MINUEND_PLACES=512, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=930, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=188, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=742, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=34527, PETRI_PLACES=527, PETRI_TRANSITIONS=902} [2022-12-13 20:34:46,720 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 489 predicate places. [2022-12-13 20:34:46,720 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 902 transitions, 34527 flow [2022-12-13 20:34:46,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 133.1818181818182) internal successors, (1465), 11 states have internal predecessors, (1465), 0 states have call successors, (0), 0 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 20:34:46,720 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:34:46,720 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:34:46,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-12-13 20:34:46,721 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:34:46,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:34:46,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1514510777, now seen corresponding path program 6 times [2022-12-13 20:34:46,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:34:46,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728131144] [2022-12-13 20:34:46,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:34:46,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:34:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:34:47,097 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 20:34:47,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:34:47,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728131144] [2022-12-13 20:34:47,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728131144] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:34:47,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:34:47,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:34:47,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376061871] [2022-12-13 20:34:47,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:34:47,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:34:47,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:34:47,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:34:47,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:34:47,542 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 297 [2022-12-13 20:34:47,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 902 transitions, 34527 flow. Second operand has 11 states, 11 states have (on average 132.1818181818182) internal successors, (1454), 11 states have internal predecessors, (1454), 0 states have call successors, (0), 0 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 20:34:47,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:34:47,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 297 [2022-12-13 20:34:47,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:34:51,807 INFO L130 PetriNetUnfolder]: 2288/6510 cut-off events. [2022-12-13 20:34:51,808 INFO L131 PetriNetUnfolder]: For 412675/412675 co-relation queries the response was YES. [2022-12-13 20:34:51,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79019 conditions, 6510 events. 2288/6510 cut-off events. For 412675/412675 co-relation queries the response was YES. Maximal size of possible extension queue 669. Compared 71621 event pairs, 612 based on Foata normal form. 24/6534 useless extension candidates. Maximal degree in co-relation 78716. Up to 2387 conditions per place. [2022-12-13 20:34:51,884 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 658 selfloop transitions, 298 changer transitions 197/1155 dead transitions. [2022-12-13 20:34:51,884 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 1155 transitions, 44649 flow [2022-12-13 20:34:51,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:34:51,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 20:34:51,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2367 transitions. [2022-12-13 20:34:51,886 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46880570409982175 [2022-12-13 20:34:51,886 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2367 transitions. [2022-12-13 20:34:51,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2367 transitions. [2022-12-13 20:34:51,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:34:51,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2367 transitions. [2022-12-13 20:34:51,888 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 20:34:51,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:34:51,890 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:34:51,890 INFO L175 Difference]: Start difference. First operand has 527 places, 902 transitions, 34527 flow. Second operand 17 states and 2367 transitions. [2022-12-13 20:34:51,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 1155 transitions, 44649 flow [2022-12-13 20:34:54,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 527 places, 1155 transitions, 44055 flow, removed 18 selfloop flow, removed 11 redundant places. [2022-12-13 20:34:54,687 INFO L231 Difference]: Finished difference. Result has 532 places, 906 transitions, 34796 flow [2022-12-13 20:34:54,688 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=33957, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=902, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=284, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=34796, PETRI_PLACES=532, PETRI_TRANSITIONS=906} [2022-12-13 20:34:54,688 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 494 predicate places. [2022-12-13 20:34:54,688 INFO L495 AbstractCegarLoop]: Abstraction has has 532 places, 906 transitions, 34796 flow [2022-12-13 20:34:54,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 132.1818181818182) internal successors, (1454), 11 states have internal predecessors, (1454), 0 states have call successors, (0), 0 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 20:34:54,688 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:34:54,688 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:34:54,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-12-13 20:34:54,689 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:34:54,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:34:54,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1049338037, now seen corresponding path program 7 times [2022-12-13 20:34:54,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:34:54,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215218709] [2022-12-13 20:34:54,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:34:54,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:34:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:34:55,312 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 20:34:55,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:34:55,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215218709] [2022-12-13 20:34:55,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215218709] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:34:55,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:34:55,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:34:55,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547327864] [2022-12-13 20:34:55,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:34:55,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:34:55,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:34:55,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:34:55,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:34:56,116 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 297 [2022-12-13 20:34:56,117 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 532 places, 906 transitions, 34796 flow. Second operand has 13 states, 13 states have (on average 129.0) internal successors, (1677), 13 states have internal predecessors, (1677), 0 states have call successors, (0), 0 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 20:34:56,117 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:34:56,117 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 297 [2022-12-13 20:34:56,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:35:00,896 INFO L130 PetriNetUnfolder]: 2029/6090 cut-off events. [2022-12-13 20:35:00,896 INFO L131 PetriNetUnfolder]: For 390083/390083 co-relation queries the response was YES. [2022-12-13 20:35:00,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74417 conditions, 6090 events. 2029/6090 cut-off events. For 390083/390083 co-relation queries the response was YES. Maximal size of possible extension queue 623. Compared 67886 event pairs, 912 based on Foata normal form. 18/6108 useless extension candidates. Maximal degree in co-relation 74114. Up to 4367 conditions per place. [2022-12-13 20:35:00,966 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 698 selfloop transitions, 256 changer transitions 65/1021 dead transitions. [2022-12-13 20:35:00,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 551 places, 1021 transitions, 40070 flow [2022-12-13 20:35:00,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 20:35:00,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-13 20:35:00,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3072 transitions. [2022-12-13 20:35:00,968 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44971453667105843 [2022-12-13 20:35:00,968 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3072 transitions. [2022-12-13 20:35:00,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3072 transitions. [2022-12-13 20:35:00,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:35:00,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3072 transitions. [2022-12-13 20:35:00,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 133.56521739130434) internal successors, (3072), 23 states have internal predecessors, (3072), 0 states have call successors, (0), 0 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 20:35:00,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 297.0) internal successors, (7128), 24 states have internal predecessors, (7128), 0 states have call successors, (0), 0 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 20:35:00,973 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 297.0) internal successors, (7128), 24 states have internal predecessors, (7128), 0 states have call successors, (0), 0 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 20:35:00,974 INFO L175 Difference]: Start difference. First operand has 532 places, 906 transitions, 34796 flow. Second operand 23 states and 3072 transitions. [2022-12-13 20:35:00,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 551 places, 1021 transitions, 40070 flow [2022-12-13 20:35:03,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 1021 transitions, 38700 flow, removed 75 selfloop flow, removed 12 redundant places. [2022-12-13 20:35:03,227 INFO L231 Difference]: Finished difference. Result has 546 places, 904 transitions, 34270 flow [2022-12-13 20:35:03,228 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=33576, PETRI_DIFFERENCE_MINUEND_PLACES=517, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=906, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=653, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=34270, PETRI_PLACES=546, PETRI_TRANSITIONS=904} [2022-12-13 20:35:03,228 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 508 predicate places. [2022-12-13 20:35:03,228 INFO L495 AbstractCegarLoop]: Abstraction has has 546 places, 904 transitions, 34270 flow [2022-12-13 20:35:03,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 129.0) internal successors, (1677), 13 states have internal predecessors, (1677), 0 states have call successors, (0), 0 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 20:35:03,228 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:35:03,228 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:35:03,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-12-13 20:35:03,229 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:35:03,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:35:03,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1125678255, now seen corresponding path program 8 times [2022-12-13 20:35:03,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:35:03,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101261296] [2022-12-13 20:35:03,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:35:03,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:35:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:03,625 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 20:35:03,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:35:03,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101261296] [2022-12-13 20:35:03,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101261296] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:35:03,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:35:03,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:35:03,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903872860] [2022-12-13 20:35:03,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:35:03,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:35:03,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:35:03,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:35:03,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:35:04,084 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:35:04,085 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 904 transitions, 34270 flow. Second operand has 11 states, 11 states have (on average 131.1818181818182) internal successors, (1443), 11 states have internal predecessors, (1443), 0 states have call successors, (0), 0 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 20:35:04,085 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:35:04,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:35:04,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:35:08,130 INFO L130 PetriNetUnfolder]: 1884/5812 cut-off events. [2022-12-13 20:35:08,130 INFO L131 PetriNetUnfolder]: For 346324/346324 co-relation queries the response was YES. [2022-12-13 20:35:08,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69118 conditions, 5812 events. 1884/5812 cut-off events. For 346324/346324 co-relation queries the response was YES. Maximal size of possible extension queue 602. Compared 65083 event pairs, 446 based on Foata normal form. 12/5824 useless extension candidates. Maximal degree in co-relation 68811. Up to 2904 conditions per place. [2022-12-13 20:35:08,189 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 411 selfloop transitions, 525 changer transitions 37/975 dead transitions. [2022-12-13 20:35:08,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 975 transitions, 37865 flow [2022-12-13 20:35:08,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:35:08,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 20:35:08,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2182 transitions. [2022-12-13 20:35:08,192 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4591750841750842 [2022-12-13 20:35:08,192 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2182 transitions. [2022-12-13 20:35:08,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2182 transitions. [2022-12-13 20:35:08,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:35:08,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2182 transitions. [2022-12-13 20:35:08,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 136.375) internal successors, (2182), 16 states have internal predecessors, (2182), 0 states have call successors, (0), 0 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 20:35:08,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:35:08,195 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:35:08,196 INFO L175 Difference]: Start difference. First operand has 546 places, 904 transitions, 34270 flow. Second operand 16 states and 2182 transitions. [2022-12-13 20:35:08,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 975 transitions, 37865 flow [2022-12-13 20:35:10,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 975 transitions, 37505 flow, removed 28 selfloop flow, removed 12 redundant places. [2022-12-13 20:35:10,363 INFO L231 Difference]: Finished difference. Result has 548 places, 909 transitions, 35276 flow [2022-12-13 20:35:10,363 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=33928, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=904, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=518, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=35276, PETRI_PLACES=548, PETRI_TRANSITIONS=909} [2022-12-13 20:35:10,364 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 510 predicate places. [2022-12-13 20:35:10,364 INFO L495 AbstractCegarLoop]: Abstraction has has 548 places, 909 transitions, 35276 flow [2022-12-13 20:35:10,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 131.1818181818182) internal successors, (1443), 11 states have internal predecessors, (1443), 0 states have call successors, (0), 0 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 20:35:10,364 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:35:10,364 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:35:10,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-12-13 20:35:10,364 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:35:10,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:35:10,364 INFO L85 PathProgramCache]: Analyzing trace with hash 607858861, now seen corresponding path program 9 times [2022-12-13 20:35:10,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:35:10,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455828254] [2022-12-13 20:35:10,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:35:10,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:35:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:10,761 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 20:35:10,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:35:10,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455828254] [2022-12-13 20:35:10,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455828254] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:35:10,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:35:10,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:35:10,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105995007] [2022-12-13 20:35:10,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:35:10,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:35:10,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:35:10,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:35:10,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:35:11,168 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:35:11,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 548 places, 909 transitions, 35276 flow. Second operand has 11 states, 11 states have (on average 131.1818181818182) internal successors, (1443), 11 states have internal predecessors, (1443), 0 states have call successors, (0), 0 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 20:35:11,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:35:11,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:35:11,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:35:15,243 INFO L130 PetriNetUnfolder]: 1840/5753 cut-off events. [2022-12-13 20:35:15,243 INFO L131 PetriNetUnfolder]: For 366769/366769 co-relation queries the response was YES. [2022-12-13 20:35:15,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69893 conditions, 5753 events. 1840/5753 cut-off events. For 366769/366769 co-relation queries the response was YES. Maximal size of possible extension queue 634. Compared 64749 event pairs, 434 based on Foata normal form. 12/5765 useless extension candidates. Maximal degree in co-relation 69580. Up to 2788 conditions per place. [2022-12-13 20:35:15,317 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 401 selfloop transitions, 535 changer transitions 55/993 dead transitions. [2022-12-13 20:35:15,317 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 558 places, 993 transitions, 39078 flow [2022-12-13 20:35:15,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:35:15,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 20:35:15,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2190 transitions. [2022-12-13 20:35:15,319 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46085858585858586 [2022-12-13 20:35:15,319 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2190 transitions. [2022-12-13 20:35:15,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2190 transitions. [2022-12-13 20:35:15,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:35:15,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2190 transitions. [2022-12-13 20:35:15,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 136.875) internal successors, (2190), 16 states have internal predecessors, (2190), 0 states have call successors, (0), 0 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 20:35:15,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:35:15,323 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:35:15,323 INFO L175 Difference]: Start difference. First operand has 548 places, 909 transitions, 35276 flow. Second operand 16 states and 2190 transitions. [2022-12-13 20:35:15,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 558 places, 993 transitions, 39078 flow [2022-12-13 20:35:17,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 993 transitions, 38008 flow, removed 7 selfloop flow, removed 9 redundant places. [2022-12-13 20:35:17,522 INFO L231 Difference]: Finished difference. Result has 552 places, 906 transitions, 35202 flow [2022-12-13 20:35:17,522 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=34268, PETRI_DIFFERENCE_MINUEND_PLACES=534, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=909, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=531, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=35202, PETRI_PLACES=552, PETRI_TRANSITIONS=906} [2022-12-13 20:35:17,523 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 514 predicate places. [2022-12-13 20:35:17,523 INFO L495 AbstractCegarLoop]: Abstraction has has 552 places, 906 transitions, 35202 flow [2022-12-13 20:35:17,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 131.1818181818182) internal successors, (1443), 11 states have internal predecessors, (1443), 0 states have call successors, (0), 0 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 20:35:17,523 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:35:17,523 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:35:17,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-12-13 20:35:17,523 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:35:17,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:35:17,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1123963338, now seen corresponding path program 5 times [2022-12-13 20:35:17,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:35:17,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169074868] [2022-12-13 20:35:17,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:35:17,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:35:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:17,955 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 20:35:17,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:35:17,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169074868] [2022-12-13 20:35:17,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169074868] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:35:17,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:35:17,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:35:17,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547756028] [2022-12-13 20:35:17,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:35:17,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:35:17,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:35:17,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:35:17,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:35:18,415 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2022-12-13 20:35:18,415 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 552 places, 906 transitions, 35202 flow. Second operand has 12 states, 12 states have (on average 130.08333333333334) internal successors, (1561), 12 states have internal predecessors, (1561), 0 states have call successors, (0), 0 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 20:35:18,415 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:35:18,416 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2022-12-13 20:35:18,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:35:22,090 INFO L130 PetriNetUnfolder]: 1802/5689 cut-off events. [2022-12-13 20:35:22,091 INFO L131 PetriNetUnfolder]: For 369214/369214 co-relation queries the response was YES. [2022-12-13 20:35:22,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69674 conditions, 5689 events. 1802/5689 cut-off events. For 369214/369214 co-relation queries the response was YES. Maximal size of possible extension queue 614. Compared 64171 event pairs, 442 based on Foata normal form. 7/5696 useless extension candidates. Maximal degree in co-relation 69359. Up to 2926 conditions per place. [2022-12-13 20:35:22,164 INFO L137 encePairwiseOnDemand]: 281/297 looper letters, 403 selfloop transitions, 547 changer transitions 5/957 dead transitions. [2022-12-13 20:35:22,164 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 957 transitions, 38140 flow [2022-12-13 20:35:22,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:35:22,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 20:35:22,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2156 transitions. [2022-12-13 20:35:22,167 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4537037037037037 [2022-12-13 20:35:22,167 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2156 transitions. [2022-12-13 20:35:22,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2156 transitions. [2022-12-13 20:35:22,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:35:22,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2156 transitions. [2022-12-13 20:35:22,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 134.75) internal successors, (2156), 16 states have internal predecessors, (2156), 0 states have call successors, (0), 0 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 20:35:22,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:35:22,170 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:35:22,171 INFO L175 Difference]: Start difference. First operand has 552 places, 906 transitions, 35202 flow. Second operand 16 states and 2156 transitions. [2022-12-13 20:35:22,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 957 transitions, 38140 flow [2022-12-13 20:35:24,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 557 places, 957 transitions, 36822 flow, removed 17 selfloop flow, removed 9 redundant places. [2022-12-13 20:35:24,441 INFO L231 Difference]: Finished difference. Result has 560 places, 917 transitions, 35405 flow [2022-12-13 20:35:24,442 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=33902, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=906, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=536, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=35405, PETRI_PLACES=560, PETRI_TRANSITIONS=917} [2022-12-13 20:35:24,442 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 522 predicate places. [2022-12-13 20:35:24,442 INFO L495 AbstractCegarLoop]: Abstraction has has 560 places, 917 transitions, 35405 flow [2022-12-13 20:35:24,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 130.08333333333334) internal successors, (1561), 12 states have internal predecessors, (1561), 0 states have call successors, (0), 0 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 20:35:24,443 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:35:24,443 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:35:24,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-12-13 20:35:24,443 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:35:24,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:35:24,443 INFO L85 PathProgramCache]: Analyzing trace with hash 604807531, now seen corresponding path program 10 times [2022-12-13 20:35:24,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:35:24,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379051422] [2022-12-13 20:35:24,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:35:24,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:35:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:24,912 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 20:35:24,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:35:24,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379051422] [2022-12-13 20:35:24,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379051422] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:35:24,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:35:24,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:35:24,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188339456] [2022-12-13 20:35:24,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:35:24,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:35:24,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:35:24,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:35:24,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:35:25,535 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2022-12-13 20:35:25,536 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 917 transitions, 35405 flow. Second operand has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 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 20:35:25,536 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:35:25,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2022-12-13 20:35:25,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:35:29,691 INFO L130 PetriNetUnfolder]: 1787/5682 cut-off events. [2022-12-13 20:35:29,691 INFO L131 PetriNetUnfolder]: For 360546/360546 co-relation queries the response was YES. [2022-12-13 20:35:29,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68799 conditions, 5682 events. 1787/5682 cut-off events. For 360546/360546 co-relation queries the response was YES. Maximal size of possible extension queue 626. Compared 64307 event pairs, 431 based on Foata normal form. 23/5705 useless extension candidates. Maximal degree in co-relation 68483. Up to 2852 conditions per place. [2022-12-13 20:35:29,763 INFO L137 encePairwiseOnDemand]: 281/297 looper letters, 397 selfloop transitions, 549 changer transitions 20/968 dead transitions. [2022-12-13 20:35:29,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 968 transitions, 38355 flow [2022-12-13 20:35:29,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 20:35:29,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-13 20:35:29,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2945 transitions. [2022-12-13 20:35:29,766 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45071931435567797 [2022-12-13 20:35:29,766 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2945 transitions. [2022-12-13 20:35:29,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2945 transitions. [2022-12-13 20:35:29,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:35:29,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2945 transitions. [2022-12-13 20:35:29,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 133.86363636363637) internal successors, (2945), 22 states have internal predecessors, (2945), 0 states have call successors, (0), 0 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 20:35:29,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 297.0) internal successors, (6831), 23 states have internal predecessors, (6831), 0 states have call successors, (0), 0 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 20:35:29,771 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 297.0) internal successors, (6831), 23 states have internal predecessors, (6831), 0 states have call successors, (0), 0 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 20:35:29,771 INFO L175 Difference]: Start difference. First operand has 560 places, 917 transitions, 35405 flow. Second operand 22 states and 2945 transitions. [2022-12-13 20:35:29,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 581 places, 968 transitions, 38355 flow [2022-12-13 20:35:31,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 574 places, 968 transitions, 38079 flow, removed 49 selfloop flow, removed 7 redundant places. [2022-12-13 20:35:31,993 INFO L231 Difference]: Finished difference. Result has 576 places, 918 transitions, 36468 flow [2022-12-13 20:35:31,994 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=35185, PETRI_DIFFERENCE_MINUEND_PLACES=553, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=917, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=540, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=36468, PETRI_PLACES=576, PETRI_TRANSITIONS=918} [2022-12-13 20:35:31,994 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 538 predicate places. [2022-12-13 20:35:31,994 INFO L495 AbstractCegarLoop]: Abstraction has has 576 places, 918 transitions, 36468 flow [2022-12-13 20:35:31,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 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 20:35:31,995 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:35:31,995 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:35:31,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-12-13 20:35:31,995 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:35:31,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:35:31,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1086889580, now seen corresponding path program 6 times [2022-12-13 20:35:31,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:35:31,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149156142] [2022-12-13 20:35:31,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:35:31,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:35:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:32,449 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 20:35:32,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:35:32,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149156142] [2022-12-13 20:35:32,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149156142] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:35:32,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:35:32,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:35:32,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081686647] [2022-12-13 20:35:32,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:35:32,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:35:32,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:35:32,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:35:32,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:35:32,951 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2022-12-13 20:35:32,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 576 places, 918 transitions, 36468 flow. Second operand has 12 states, 12 states have (on average 130.08333333333334) internal successors, (1561), 12 states have internal predecessors, (1561), 0 states have call successors, (0), 0 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 20:35:32,952 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:35:32,952 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2022-12-13 20:35:32,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:35:37,552 INFO L130 PetriNetUnfolder]: 1755/5590 cut-off events. [2022-12-13 20:35:37,552 INFO L131 PetriNetUnfolder]: For 388358/388358 co-relation queries the response was YES. [2022-12-13 20:35:37,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70840 conditions, 5590 events. 1755/5590 cut-off events. For 388358/388358 co-relation queries the response was YES. Maximal size of possible extension queue 579. Compared 63062 event pairs, 625 based on Foata normal form. 20/5610 useless extension candidates. Maximal degree in co-relation 70516. Up to 2419 conditions per place. [2022-12-13 20:35:37,617 INFO L137 encePairwiseOnDemand]: 280/297 looper letters, 648 selfloop transitions, 348 changer transitions 16/1014 dead transitions. [2022-12-13 20:35:37,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 1014 transitions, 40987 flow [2022-12-13 20:35:37,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:35:37,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 20:35:37,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2321 transitions. [2022-12-13 20:35:37,619 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4596949891067538 [2022-12-13 20:35:37,619 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2321 transitions. [2022-12-13 20:35:37,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2321 transitions. [2022-12-13 20:35:37,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:35:37,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2321 transitions. [2022-12-13 20:35:37,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 136.52941176470588) internal successors, (2321), 17 states have internal predecessors, (2321), 0 states have call successors, (0), 0 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 20:35:37,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:35:37,623 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:35:37,623 INFO L175 Difference]: Start difference. First operand has 576 places, 918 transitions, 36468 flow. Second operand 17 states and 2321 transitions. [2022-12-13 20:35:37,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 1014 transitions, 40987 flow [2022-12-13 20:35:39,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 571 places, 1014 transitions, 40199 flow, removed 34 selfloop flow, removed 13 redundant places. [2022-12-13 20:35:39,869 INFO L231 Difference]: Finished difference. Result has 576 places, 944 transitions, 37579 flow [2022-12-13 20:35:39,870 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=35602, PETRI_DIFFERENCE_MINUEND_PLACES=555, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=915, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=321, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=589, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=37579, PETRI_PLACES=576, PETRI_TRANSITIONS=944} [2022-12-13 20:35:39,870 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 538 predicate places. [2022-12-13 20:35:39,870 INFO L495 AbstractCegarLoop]: Abstraction has has 576 places, 944 transitions, 37579 flow [2022-12-13 20:35:39,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 130.08333333333334) internal successors, (1561), 12 states have internal predecessors, (1561), 0 states have call successors, (0), 0 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 20:35:39,870 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:35:39,871 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:35:39,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-12-13 20:35:39,871 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:35:39,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:35:39,871 INFO L85 PathProgramCache]: Analyzing trace with hash 767846424, now seen corresponding path program 7 times [2022-12-13 20:35:39,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:35:39,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769008715] [2022-12-13 20:35:39,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:35:39,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:35:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:40,333 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 20:35:40,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:35:40,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769008715] [2022-12-13 20:35:40,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769008715] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:35:40,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:35:40,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:35:40,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701672926] [2022-12-13 20:35:40,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:35:40,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:35:40,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:35:40,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:35:40,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:35:40,873 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2022-12-13 20:35:40,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 576 places, 944 transitions, 37579 flow. Second operand has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 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 20:35:40,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:35:40,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2022-12-13 20:35:40,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:35:45,410 INFO L130 PetriNetUnfolder]: 1755/5604 cut-off events. [2022-12-13 20:35:45,411 INFO L131 PetriNetUnfolder]: For 398740/398740 co-relation queries the response was YES. [2022-12-13 20:35:45,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71705 conditions, 5604 events. 1755/5604 cut-off events. For 398740/398740 co-relation queries the response was YES. Maximal size of possible extension queue 584. Compared 63412 event pairs, 598 based on Foata normal form. 7/5611 useless extension candidates. Maximal degree in co-relation 71386. Up to 2419 conditions per place. [2022-12-13 20:35:45,484 INFO L137 encePairwiseOnDemand]: 281/297 looper letters, 641 selfloop transitions, 357 changer transitions 20/1020 dead transitions. [2022-12-13 20:35:45,484 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 592 places, 1020 transitions, 41471 flow [2022-12-13 20:35:45,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:35:45,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 20:35:45,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2311 transitions. [2022-12-13 20:35:45,487 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45771439889086946 [2022-12-13 20:35:45,487 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2311 transitions. [2022-12-13 20:35:45,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2311 transitions. [2022-12-13 20:35:45,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:35:45,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2311 transitions. [2022-12-13 20:35:45,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 135.94117647058823) internal successors, (2311), 17 states have internal predecessors, (2311), 0 states have call successors, (0), 0 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 20:35:45,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:35:45,490 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:35:45,491 INFO L175 Difference]: Start difference. First operand has 576 places, 944 transitions, 37579 flow. Second operand 17 states and 2311 transitions. [2022-12-13 20:35:45,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 592 places, 1020 transitions, 41471 flow [2022-12-13 20:35:47,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 586 places, 1020 transitions, 41053 flow, removed 83 selfloop flow, removed 6 redundant places. [2022-12-13 20:35:47,788 INFO L231 Difference]: Finished difference. Result has 588 places, 951 transitions, 38179 flow [2022-12-13 20:35:47,789 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=37110, PETRI_DIFFERENCE_MINUEND_PLACES=570, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=941, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=347, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=588, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=38179, PETRI_PLACES=588, PETRI_TRANSITIONS=951} [2022-12-13 20:35:47,789 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 550 predicate places. [2022-12-13 20:35:47,789 INFO L495 AbstractCegarLoop]: Abstraction has has 588 places, 951 transitions, 38179 flow [2022-12-13 20:35:47,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 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 20:35:47,789 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:35:47,789 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:35:47,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-12-13 20:35:47,789 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:35:47,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:35:47,790 INFO L85 PathProgramCache]: Analyzing trace with hash 767861307, now seen corresponding path program 11 times [2022-12-13 20:35:47,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:35:47,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541936798] [2022-12-13 20:35:47,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:35:47,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:35:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:48,247 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 20:35:48,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:35:48,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541936798] [2022-12-13 20:35:48,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541936798] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:35:48,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:35:48,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:35:48,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753434535] [2022-12-13 20:35:48,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:35:48,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:35:48,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:35:48,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:35:48,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:35:48,873 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2022-12-13 20:35:48,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 588 places, 951 transitions, 38179 flow. Second operand has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 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 20:35:48,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:35:48,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2022-12-13 20:35:48,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:35:52,996 INFO L130 PetriNetUnfolder]: 1736/5597 cut-off events. [2022-12-13 20:35:52,996 INFO L131 PetriNetUnfolder]: For 394882/394882 co-relation queries the response was YES. [2022-12-13 20:35:53,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71648 conditions, 5597 events. 1736/5597 cut-off events. For 394882/394882 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 63551 event pairs, 610 based on Foata normal form. 6/5603 useless extension candidates. Maximal degree in co-relation 71328. Up to 2443 conditions per place. [2022-12-13 20:35:53,070 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 674 selfloop transitions, 297 changer transitions 42/1015 dead transitions. [2022-12-13 20:35:53,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 602 places, 1015 transitions, 41932 flow [2022-12-13 20:35:53,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 20:35:53,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 20:35:53,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2036 transitions. [2022-12-13 20:35:53,072 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4570145903479237 [2022-12-13 20:35:53,073 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2036 transitions. [2022-12-13 20:35:53,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2036 transitions. [2022-12-13 20:35:53,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:35:53,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2036 transitions. [2022-12-13 20:35:53,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 135.73333333333332) internal successors, (2036), 15 states have internal predecessors, (2036), 0 states have call successors, (0), 0 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 20:35:53,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 297.0) internal successors, (4752), 16 states have internal predecessors, (4752), 0 states have call successors, (0), 0 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 20:35:53,076 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 297.0) internal successors, (4752), 16 states have internal predecessors, (4752), 0 states have call successors, (0), 0 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 20:35:53,076 INFO L175 Difference]: Start difference. First operand has 588 places, 951 transitions, 38179 flow. Second operand 15 states and 2036 transitions. [2022-12-13 20:35:53,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 602 places, 1015 transitions, 41932 flow [2022-12-13 20:35:55,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 593 places, 1015 transitions, 41442 flow, removed 55 selfloop flow, removed 9 redundant places. [2022-12-13 20:35:55,716 INFO L231 Difference]: Finished difference. Result has 593 places, 942 transitions, 37930 flow [2022-12-13 20:35:55,716 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=37720, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=950, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=297, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=653, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=37930, PETRI_PLACES=593, PETRI_TRANSITIONS=942} [2022-12-13 20:35:55,716 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 555 predicate places. [2022-12-13 20:35:55,717 INFO L495 AbstractCegarLoop]: Abstraction has has 593 places, 942 transitions, 37930 flow [2022-12-13 20:35:55,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 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 20:35:55,717 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:35:55,717 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:35:55,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-12-13 20:35:55,717 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:35:55,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:35:55,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1511459447, now seen corresponding path program 12 times [2022-12-13 20:35:55,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:35:55,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52225243] [2022-12-13 20:35:55,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:35:55,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:35:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:56,206 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 20:35:56,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:35:56,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52225243] [2022-12-13 20:35:56,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52225243] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:35:56,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:35:56,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:35:56,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007237645] [2022-12-13 20:35:56,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:35:56,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:35:56,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:35:56,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:35:56,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:35:56,654 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2022-12-13 20:35:56,654 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 593 places, 942 transitions, 37930 flow. Second operand has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 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 20:35:56,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:35:56,654 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2022-12-13 20:35:56,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:35:59,949 INFO L130 PetriNetUnfolder]: 1220/4419 cut-off events. [2022-12-13 20:35:59,949 INFO L131 PetriNetUnfolder]: For 316421/316421 co-relation queries the response was YES. [2022-12-13 20:35:59,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57214 conditions, 4419 events. 1220/4419 cut-off events. For 316421/316421 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 50686 event pairs, 351 based on Foata normal form. 94/4513 useless extension candidates. Maximal degree in co-relation 56897. Up to 1894 conditions per place. [2022-12-13 20:36:00,006 INFO L137 encePairwiseOnDemand]: 280/297 looper letters, 712 selfloop transitions, 328 changer transitions 26/1068 dead transitions. [2022-12-13 20:36:00,006 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 602 places, 1068 transitions, 44412 flow [2022-12-13 20:36:00,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:36:00,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 20:36:00,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1900 transitions. [2022-12-13 20:36:00,008 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45695045695045694 [2022-12-13 20:36:00,008 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1900 transitions. [2022-12-13 20:36:00,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1900 transitions. [2022-12-13 20:36:00,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:36:00,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1900 transitions. [2022-12-13 20:36:00,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 135.71428571428572) internal successors, (1900), 14 states have internal predecessors, (1900), 0 states have call successors, (0), 0 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 20:36:00,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 297.0) internal successors, (4455), 15 states have internal predecessors, (4455), 0 states have call successors, (0), 0 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 20:36:00,012 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 297.0) internal successors, (4455), 15 states have internal predecessors, (4455), 0 states have call successors, (0), 0 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 20:36:00,012 INFO L175 Difference]: Start difference. First operand has 593 places, 942 transitions, 37930 flow. Second operand 14 states and 1900 transitions. [2022-12-13 20:36:00,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 602 places, 1068 transitions, 44412 flow [2022-12-13 20:36:01,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 582 places, 1068 transitions, 42971 flow, removed 9 selfloop flow, removed 20 redundant places. [2022-12-13 20:36:02,011 INFO L231 Difference]: Finished difference. Result has 590 places, 1002 transitions, 40526 flow [2022-12-13 20:36:02,012 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=36619, PETRI_DIFFERENCE_MINUEND_PLACES=569, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=942, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=266, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=614, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=40526, PETRI_PLACES=590, PETRI_TRANSITIONS=1002} [2022-12-13 20:36:02,012 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 552 predicate places. [2022-12-13 20:36:02,012 INFO L495 AbstractCegarLoop]: Abstraction has has 590 places, 1002 transitions, 40526 flow [2022-12-13 20:36:02,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 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 20:36:02,012 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:36:02,012 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:36:02,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-12-13 20:36:02,013 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:36:02,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:36:02,013 INFO L85 PathProgramCache]: Analyzing trace with hash 667451067, now seen corresponding path program 13 times [2022-12-13 20:36:02,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:36:02,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970273487] [2022-12-13 20:36:02,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:36:02,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:36:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:36:02,490 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 20:36:02,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:36:02,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970273487] [2022-12-13 20:36:02,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970273487] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:36:02,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:36:02,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:36:02,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204892377] [2022-12-13 20:36:02,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:36:02,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:36:02,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:36:02,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:36:02,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:36:03,019 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2022-12-13 20:36:03,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 1002 transitions, 40526 flow. Second operand has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 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 20:36:03,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:36:03,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2022-12-13 20:36:03,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:36:06,761 INFO L130 PetriNetUnfolder]: 1176/4275 cut-off events. [2022-12-13 20:36:06,761 INFO L131 PetriNetUnfolder]: For 337495/337495 co-relation queries the response was YES. [2022-12-13 20:36:06,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58188 conditions, 4275 events. 1176/4275 cut-off events. For 337495/337495 co-relation queries the response was YES. Maximal size of possible extension queue 441. Compared 48688 event pairs, 349 based on Foata normal form. 9/4284 useless extension candidates. Maximal degree in co-relation 57877. Up to 1894 conditions per place. [2022-12-13 20:36:06,813 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 695 selfloop transitions, 339 changer transitions 17/1053 dead transitions. [2022-12-13 20:36:06,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 604 places, 1053 transitions, 43868 flow [2022-12-13 20:36:06,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 20:36:06,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-13 20:36:06,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2680 transitions. [2022-12-13 20:36:06,815 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4511784511784512 [2022-12-13 20:36:06,815 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2680 transitions. [2022-12-13 20:36:06,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2680 transitions. [2022-12-13 20:36:06,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:36:06,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2680 transitions. [2022-12-13 20:36:06,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 134.0) internal successors, (2680), 20 states have internal predecessors, (2680), 0 states have call successors, (0), 0 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 20:36:06,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 297.0) internal successors, (6237), 21 states have internal predecessors, (6237), 0 states have call successors, (0), 0 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 20:36:06,819 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 297.0) internal successors, (6237), 21 states have internal predecessors, (6237), 0 states have call successors, (0), 0 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 20:36:06,820 INFO L175 Difference]: Start difference. First operand has 590 places, 1002 transitions, 40526 flow. Second operand 20 states and 2680 transitions. [2022-12-13 20:36:06,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 604 places, 1053 transitions, 43868 flow [2022-12-13 20:36:08,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 589 places, 1053 transitions, 42447 flow, removed 75 selfloop flow, removed 15 redundant places. [2022-12-13 20:36:08,824 INFO L231 Difference]: Finished difference. Result has 590 places, 1003 transitions, 40158 flow [2022-12-13 20:36:08,825 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=39169, PETRI_DIFFERENCE_MINUEND_PLACES=570, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1001, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=329, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=670, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=40158, PETRI_PLACES=590, PETRI_TRANSITIONS=1003} [2022-12-13 20:36:08,825 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 552 predicate places. [2022-12-13 20:36:08,825 INFO L495 AbstractCegarLoop]: Abstraction has has 590 places, 1003 transitions, 40158 flow [2022-12-13 20:36:08,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 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 20:36:08,825 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:36:08,825 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:36:08,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-12-13 20:36:08,826 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:36:08,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:36:08,826 INFO L85 PathProgramCache]: Analyzing trace with hash -545428537, now seen corresponding path program 1 times [2022-12-13 20:36:08,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:36:08,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204521553] [2022-12-13 20:36:08,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:36:08,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:36:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:36:09,222 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 20:36:09,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:36:09,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204521553] [2022-12-13 20:36:09,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204521553] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:36:09,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:36:09,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:36:09,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615213533] [2022-12-13 20:36:09,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:36:09,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:36:09,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:36:09,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:36:09,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:36:09,642 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 297 [2022-12-13 20:36:09,643 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 1003 transitions, 40158 flow. Second operand has 12 states, 12 states have (on average 132.16666666666666) internal successors, (1586), 12 states have internal predecessors, (1586), 0 states have call successors, (0), 0 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 20:36:09,643 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:36:09,643 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 297 [2022-12-13 20:36:09,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:36:13,016 INFO L130 PetriNetUnfolder]: 1098/3982 cut-off events. [2022-12-13 20:36:13,016 INFO L131 PetriNetUnfolder]: For 300476/300476 co-relation queries the response was YES. [2022-12-13 20:36:13,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53873 conditions, 3982 events. 1098/3982 cut-off events. For 300476/300476 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 44468 event pairs, 406 based on Foata normal form. 8/3990 useless extension candidates. Maximal degree in co-relation 53577. Up to 2593 conditions per place. [2022-12-13 20:36:13,067 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 790 selfloop transitions, 264 changer transitions 0/1056 dead transitions. [2022-12-13 20:36:13,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 597 places, 1056 transitions, 43464 flow [2022-12-13 20:36:13,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 20:36:13,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-13 20:36:13,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2586 transitions. [2022-12-13 20:36:13,069 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4582668793195109 [2022-12-13 20:36:13,069 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2586 transitions. [2022-12-13 20:36:13,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2586 transitions. [2022-12-13 20:36:13,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:36:13,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2586 transitions. [2022-12-13 20:36:13,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.10526315789474) internal successors, (2586), 19 states have internal predecessors, (2586), 0 states have call successors, (0), 0 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 20:36:13,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 297.0) internal successors, (5940), 20 states have internal predecessors, (5940), 0 states have call successors, (0), 0 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 20:36:13,073 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 297.0) internal successors, (5940), 20 states have internal predecessors, (5940), 0 states have call successors, (0), 0 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 20:36:13,073 INFO L175 Difference]: Start difference. First operand has 590 places, 1003 transitions, 40158 flow. Second operand 19 states and 2586 transitions. [2022-12-13 20:36:13,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 597 places, 1056 transitions, 43464 flow [2022-12-13 20:36:14,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 582 places, 1056 transitions, 42200 flow, removed 125 selfloop flow, removed 15 redundant places. [2022-12-13 20:36:14,966 INFO L231 Difference]: Finished difference. Result has 586 places, 1021 transitions, 40135 flow [2022-12-13 20:36:14,966 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=38701, PETRI_DIFFERENCE_MINUEND_PLACES=564, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=997, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=245, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=746, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=40135, PETRI_PLACES=586, PETRI_TRANSITIONS=1021} [2022-12-13 20:36:14,967 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 548 predicate places. [2022-12-13 20:36:14,967 INFO L495 AbstractCegarLoop]: Abstraction has has 586 places, 1021 transitions, 40135 flow [2022-12-13 20:36:14,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 132.16666666666666) internal successors, (1586), 12 states have internal predecessors, (1586), 0 states have call successors, (0), 0 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 20:36:14,967 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:36:14,967 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:36:14,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-12-13 20:36:14,967 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:36:14,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:36:14,968 INFO L85 PathProgramCache]: Analyzing trace with hash 76665968, now seen corresponding path program 1 times [2022-12-13 20:36:14,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:36:14,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102305649] [2022-12-13 20:36:14,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:36:14,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:36:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:36:15,509 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 20:36:15,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:36:15,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102305649] [2022-12-13 20:36:15,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102305649] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:36:15,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:36:15,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:36:15,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358963642] [2022-12-13 20:36:15,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:36:15,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:36:15,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:36:15,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:36:15,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:36:16,079 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2022-12-13 20:36:16,080 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 586 places, 1021 transitions, 40135 flow. Second operand has 14 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 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 20:36:16,080 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:36:16,080 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2022-12-13 20:36:16,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:36:19,688 INFO L130 PetriNetUnfolder]: 1083/4040 cut-off events. [2022-12-13 20:36:19,688 INFO L131 PetriNetUnfolder]: For 306556/306556 co-relation queries the response was YES. [2022-12-13 20:36:19,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54119 conditions, 4040 events. 1083/4040 cut-off events. For 306556/306556 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 45723 event pairs, 444 based on Foata normal form. 56/4096 useless extension candidates. Maximal degree in co-relation 53807. Up to 1543 conditions per place. [2022-12-13 20:36:19,739 INFO L137 encePairwiseOnDemand]: 281/297 looper letters, 955 selfloop transitions, 141 changer transitions 50/1148 dead transitions. [2022-12-13 20:36:19,739 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 603 places, 1148 transitions, 46009 flow [2022-12-13 20:36:19,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 20:36:19,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 20:36:19,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2422 transitions. [2022-12-13 20:36:19,741 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45304900860456415 [2022-12-13 20:36:19,741 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2422 transitions. [2022-12-13 20:36:19,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2422 transitions. [2022-12-13 20:36:19,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:36:19,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2422 transitions. [2022-12-13 20:36:19,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 134.55555555555554) internal successors, (2422), 18 states have internal predecessors, (2422), 0 states have call successors, (0), 0 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 20:36:19,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 297.0) internal successors, (5643), 19 states have internal predecessors, (5643), 0 states have call successors, (0), 0 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 20:36:19,745 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 297.0) internal successors, (5643), 19 states have internal predecessors, (5643), 0 states have call successors, (0), 0 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 20:36:19,745 INFO L175 Difference]: Start difference. First operand has 586 places, 1021 transitions, 40135 flow. Second operand 18 states and 2422 transitions. [2022-12-13 20:36:19,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 603 places, 1148 transitions, 46009 flow [2022-12-13 20:36:21,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 598 places, 1148 transitions, 45669 flow, removed 103 selfloop flow, removed 5 redundant places. [2022-12-13 20:36:21,805 INFO L231 Difference]: Finished difference. Result has 606 places, 1041 transitions, 40391 flow [2022-12-13 20:36:21,806 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=39713, PETRI_DIFFERENCE_MINUEND_PLACES=581, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1019, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=901, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=40391, PETRI_PLACES=606, PETRI_TRANSITIONS=1041} [2022-12-13 20:36:21,806 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 568 predicate places. [2022-12-13 20:36:21,806 INFO L495 AbstractCegarLoop]: Abstraction has has 606 places, 1041 transitions, 40391 flow [2022-12-13 20:36:21,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 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 20:36:21,806 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:36:21,806 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:36:21,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-12-13 20:36:21,807 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:36:21,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:36:21,807 INFO L85 PathProgramCache]: Analyzing trace with hash 76665969, now seen corresponding path program 2 times [2022-12-13 20:36:21,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:36:21,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718051331] [2022-12-13 20:36:21,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:36:21,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:36:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:36:22,400 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 20:36:22,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:36:22,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718051331] [2022-12-13 20:36:22,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718051331] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:36:22,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:36:22,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:36:22,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589687985] [2022-12-13 20:36:22,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:36:22,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:36:22,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:36:22,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:36:22,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:36:23,000 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2022-12-13 20:36:23,001 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 1041 transitions, 40391 flow. Second operand has 14 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 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 20:36:23,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:36:23,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2022-12-13 20:36:23,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:36:26,240 INFO L130 PetriNetUnfolder]: 1062/3944 cut-off events. [2022-12-13 20:36:26,241 INFO L131 PetriNetUnfolder]: For 313256/313256 co-relation queries the response was YES. [2022-12-13 20:36:26,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53995 conditions, 3944 events. 1062/3944 cut-off events. For 313256/313256 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 44382 event pairs, 443 based on Foata normal form. 3/3947 useless extension candidates. Maximal degree in co-relation 53683. Up to 1557 conditions per place. [2022-12-13 20:36:26,290 INFO L137 encePairwiseOnDemand]: 282/297 looper letters, 917 selfloop transitions, 171 changer transitions 3/1093 dead transitions. [2022-12-13 20:36:26,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 621 places, 1093 transitions, 43746 flow [2022-12-13 20:36:26,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:36:26,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 20:36:26,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2287 transitions. [2022-12-13 20:36:26,293 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45296098237274707 [2022-12-13 20:36:26,293 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2287 transitions. [2022-12-13 20:36:26,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2287 transitions. [2022-12-13 20:36:26,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:36:26,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2287 transitions. [2022-12-13 20:36:26,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 134.52941176470588) internal successors, (2287), 17 states have internal predecessors, (2287), 0 states have call successors, (0), 0 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 20:36:26,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:36:26,297 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:36:26,297 INFO L175 Difference]: Start difference. First operand has 606 places, 1041 transitions, 40391 flow. Second operand 17 states and 2287 transitions. [2022-12-13 20:36:26,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 621 places, 1093 transitions, 43746 flow [2022-12-13 20:36:28,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 614 places, 1093 transitions, 43419 flow, removed 76 selfloop flow, removed 7 redundant places. [2022-12-13 20:36:28,374 INFO L231 Difference]: Finished difference. Result has 614 places, 1040 transitions, 40500 flow [2022-12-13 20:36:28,374 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=39966, PETRI_DIFFERENCE_MINUEND_PLACES=598, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1038, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=166, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=872, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=40500, PETRI_PLACES=614, PETRI_TRANSITIONS=1040} [2022-12-13 20:36:28,374 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 576 predicate places. [2022-12-13 20:36:28,375 INFO L495 AbstractCegarLoop]: Abstraction has has 614 places, 1040 transitions, 40500 flow [2022-12-13 20:36:28,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 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 20:36:28,375 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:36:28,375 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:36:28,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-12-13 20:36:28,375 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:36:28,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:36:28,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1652381365, now seen corresponding path program 3 times [2022-12-13 20:36:28,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:36:28,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083652972] [2022-12-13 20:36:28,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:36:28,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:36:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:36:29,055 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 20:36:29,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:36:29,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083652972] [2022-12-13 20:36:29,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083652972] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:36:29,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:36:29,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 20:36:29,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882342103] [2022-12-13 20:36:29,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:36:29,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 20:36:29,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:36:29,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 20:36:29,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-12-13 20:36:29,621 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 297 [2022-12-13 20:36:29,621 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 1040 transitions, 40500 flow. Second operand has 15 states, 15 states have (on average 128.93333333333334) internal successors, (1934), 15 states have internal predecessors, (1934), 0 states have call successors, (0), 0 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 20:36:29,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:36:29,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 297 [2022-12-13 20:36:29,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:36:33,356 INFO L130 PetriNetUnfolder]: 1062/3935 cut-off events. [2022-12-13 20:36:33,356 INFO L131 PetriNetUnfolder]: For 313272/313272 co-relation queries the response was YES. [2022-12-13 20:36:33,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53915 conditions, 3935 events. 1062/3935 cut-off events. For 313272/313272 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 44172 event pairs, 458 based on Foata normal form. 1/3936 useless extension candidates. Maximal degree in co-relation 53604. Up to 3349 conditions per place. [2022-12-13 20:36:33,401 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 861 selfloop transitions, 182 changer transitions 8/1053 dead transitions. [2022-12-13 20:36:33,402 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 638 places, 1053 transitions, 42769 flow [2022-12-13 20:36:33,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-13 20:36:33,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-12-13 20:36:33,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3299 transitions. [2022-12-13 20:36:33,405 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4443097643097643 [2022-12-13 20:36:33,405 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3299 transitions. [2022-12-13 20:36:33,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3299 transitions. [2022-12-13 20:36:33,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:36:33,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3299 transitions. [2022-12-13 20:36:33,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 131.96) internal successors, (3299), 25 states have internal predecessors, (3299), 0 states have call successors, (0), 0 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 20:36:33,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 297.0) internal successors, (7722), 26 states have internal predecessors, (7722), 0 states have call successors, (0), 0 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 20:36:33,410 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 297.0) internal successors, (7722), 26 states have internal predecessors, (7722), 0 states have call successors, (0), 0 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 20:36:33,410 INFO L175 Difference]: Start difference. First operand has 614 places, 1040 transitions, 40500 flow. Second operand 25 states and 3299 transitions. [2022-12-13 20:36:33,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 638 places, 1053 transitions, 42769 flow [2022-12-13 20:36:35,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 632 places, 1053 transitions, 42677 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-12-13 20:36:35,250 INFO L231 Difference]: Finished difference. Result has 633 places, 1036 transitions, 40607 flow [2022-12-13 20:36:35,250 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=40375, PETRI_DIFFERENCE_MINUEND_PLACES=608, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1039, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=182, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=857, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=40607, PETRI_PLACES=633, PETRI_TRANSITIONS=1036} [2022-12-13 20:36:35,251 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 595 predicate places. [2022-12-13 20:36:35,251 INFO L495 AbstractCegarLoop]: Abstraction has has 633 places, 1036 transitions, 40607 flow [2022-12-13 20:36:35,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 128.93333333333334) internal successors, (1934), 15 states have internal predecessors, (1934), 0 states have call successors, (0), 0 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 20:36:35,251 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:36:35,251 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:36:35,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-12-13 20:36:35,251 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:36:35,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:36:35,252 INFO L85 PathProgramCache]: Analyzing trace with hash -799968427, now seen corresponding path program 4 times [2022-12-13 20:36:35,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:36:35,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755232031] [2022-12-13 20:36:35,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:36:35,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:36:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:36:35,734 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 20:36:35,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:36:35,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755232031] [2022-12-13 20:36:35,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755232031] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:36:35,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:36:35,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:36:35,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402612118] [2022-12-13 20:36:35,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:36:35,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:36:35,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:36:35,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:36:35,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:36:36,356 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2022-12-13 20:36:36,356 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 633 places, 1036 transitions, 40607 flow. Second operand has 14 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 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 20:36:36,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:36:36,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2022-12-13 20:36:36,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:36:40,026 INFO L130 PetriNetUnfolder]: 1077/4047 cut-off events. [2022-12-13 20:36:40,026 INFO L131 PetriNetUnfolder]: For 327140/327140 co-relation queries the response was YES. [2022-12-13 20:36:40,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55253 conditions, 4047 events. 1077/4047 cut-off events. For 327140/327140 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 46135 event pairs, 346 based on Foata normal form. 21/4068 useless extension candidates. Maximal degree in co-relation 54945. Up to 1793 conditions per place. [2022-12-13 20:36:40,078 INFO L137 encePairwiseOnDemand]: 281/297 looper letters, 701 selfloop transitions, 441 changer transitions 8/1152 dead transitions. [2022-12-13 20:36:40,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 646 places, 1152 transitions, 45912 flow [2022-12-13 20:36:40,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 20:36:40,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-13 20:36:40,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2554 transitions. [2022-12-13 20:36:40,081 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4525961368066631 [2022-12-13 20:36:40,081 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2554 transitions. [2022-12-13 20:36:40,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2554 transitions. [2022-12-13 20:36:40,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:36:40,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2554 transitions. [2022-12-13 20:36:40,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 134.42105263157896) internal successors, (2554), 19 states have internal predecessors, (2554), 0 states have call successors, (0), 0 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 20:36:40,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 297.0) internal successors, (5940), 20 states have internal predecessors, (5940), 0 states have call successors, (0), 0 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 20:36:40,085 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 297.0) internal successors, (5940), 20 states have internal predecessors, (5940), 0 states have call successors, (0), 0 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 20:36:40,085 INFO L175 Difference]: Start difference. First operand has 633 places, 1036 transitions, 40607 flow. Second operand 19 states and 2554 transitions. [2022-12-13 20:36:40,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 646 places, 1152 transitions, 45912 flow [2022-12-13 20:36:42,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 633 places, 1152 transitions, 45550 flow, removed 9 selfloop flow, removed 13 redundant places. [2022-12-13 20:36:42,242 INFO L231 Difference]: Finished difference. Result has 641 places, 1087 transitions, 43091 flow [2022-12-13 20:36:42,243 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=40249, PETRI_DIFFERENCE_MINUEND_PLACES=615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1036, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=383, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=625, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=43091, PETRI_PLACES=641, PETRI_TRANSITIONS=1087} [2022-12-13 20:36:42,243 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 603 predicate places. [2022-12-13 20:36:42,243 INFO L495 AbstractCegarLoop]: Abstraction has has 641 places, 1087 transitions, 43091 flow [2022-12-13 20:36:42,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 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 20:36:42,243 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:36:42,243 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:36:42,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-12-13 20:36:42,244 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:36:42,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:36:42,244 INFO L85 PathProgramCache]: Analyzing trace with hash 231801158, now seen corresponding path program 2 times [2022-12-13 20:36:42,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:36:42,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921068208] [2022-12-13 20:36:42,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:36:42,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:36:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:36:42,652 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 20:36:42,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:36:42,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921068208] [2022-12-13 20:36:42,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921068208] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:36:42,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:36:42,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:36:42,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264065538] [2022-12-13 20:36:42,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:36:42,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:36:42,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:36:42,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:36:42,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:36:43,251 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2022-12-13 20:36:43,252 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 641 places, 1087 transitions, 43091 flow. Second operand has 12 states, 12 states have (on average 130.16666666666666) internal successors, (1562), 12 states have internal predecessors, (1562), 0 states have call successors, (0), 0 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 20:36:43,252 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:36:43,252 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2022-12-13 20:36:43,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:36:46,757 INFO L130 PetriNetUnfolder]: 1042/3985 cut-off events. [2022-12-13 20:36:46,757 INFO L131 PetriNetUnfolder]: For 351990/351990 co-relation queries the response was YES. [2022-12-13 20:36:46,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56302 conditions, 3985 events. 1042/3985 cut-off events. For 351990/351990 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 45542 event pairs, 341 based on Foata normal form. 18/4003 useless extension candidates. Maximal degree in co-relation 55983. Up to 1643 conditions per place. [2022-12-13 20:36:46,820 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 918 selfloop transitions, 219 changer transitions 2/1141 dead transitions. [2022-12-13 20:36:46,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 657 places, 1141 transitions, 46559 flow [2022-12-13 20:36:46,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 20:36:46,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 20:36:46,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2426 transitions. [2022-12-13 20:36:46,822 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45379723157500934 [2022-12-13 20:36:46,822 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2426 transitions. [2022-12-13 20:36:46,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2426 transitions. [2022-12-13 20:36:46,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:36:46,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2426 transitions. [2022-12-13 20:36:46,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 134.77777777777777) internal successors, (2426), 18 states have internal predecessors, (2426), 0 states have call successors, (0), 0 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 20:36:46,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 297.0) internal successors, (5643), 19 states have internal predecessors, (5643), 0 states have call successors, (0), 0 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 20:36:46,827 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 297.0) internal successors, (5643), 19 states have internal predecessors, (5643), 0 states have call successors, (0), 0 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 20:36:46,827 INFO L175 Difference]: Start difference. First operand has 641 places, 1087 transitions, 43091 flow. Second operand 18 states and 2426 transitions. [2022-12-13 20:36:46,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 657 places, 1141 transitions, 46559 flow [2022-12-13 20:36:48,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 646 places, 1141 transitions, 45379 flow, removed 64 selfloop flow, removed 11 redundant places. [2022-12-13 20:36:48,964 INFO L231 Difference]: Finished difference. Result has 651 places, 1088 transitions, 42491 flow [2022-12-13 20:36:48,964 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=41197, PETRI_DIFFERENCE_MINUEND_PLACES=629, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1066, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=858, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=42491, PETRI_PLACES=651, PETRI_TRANSITIONS=1088} [2022-12-13 20:36:48,964 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 613 predicate places. [2022-12-13 20:36:48,964 INFO L495 AbstractCegarLoop]: Abstraction has has 651 places, 1088 transitions, 42491 flow [2022-12-13 20:36:48,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 130.16666666666666) internal successors, (1562), 12 states have internal predecessors, (1562), 0 states have call successors, (0), 0 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 20:36:48,965 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:36:48,965 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:36:48,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-12-13 20:36:48,965 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:36:48,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:36:48,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1880931135, now seen corresponding path program 5 times [2022-12-13 20:36:48,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:36:48,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027153987] [2022-12-13 20:36:48,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:36:48,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:36:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:36:49,443 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 20:36:49,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:36:49,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027153987] [2022-12-13 20:36:49,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027153987] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:36:49,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:36:49,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:36:49,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571439769] [2022-12-13 20:36:49,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:36:49,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:36:49,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:36:49,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:36:49,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:36:49,939 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 297 [2022-12-13 20:36:49,940 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 651 places, 1088 transitions, 42491 flow. Second operand has 12 states, 12 states have (on average 132.16666666666666) internal successors, (1586), 12 states have internal predecessors, (1586), 0 states have call successors, (0), 0 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 20:36:49,940 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:36:49,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 297 [2022-12-13 20:36:49,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:36:53,490 INFO L130 PetriNetUnfolder]: 1036/3960 cut-off events. [2022-12-13 20:36:53,490 INFO L131 PetriNetUnfolder]: For 343892/343892 co-relation queries the response was YES. [2022-12-13 20:36:53,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55795 conditions, 3960 events. 1036/3960 cut-off events. For 343892/343892 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 45200 event pairs, 343 based on Foata normal form. 8/3968 useless extension candidates. Maximal degree in co-relation 55471. Up to 1657 conditions per place. [2022-12-13 20:36:53,539 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 866 selfloop transitions, 263 changer transitions 0/1131 dead transitions. [2022-12-13 20:36:53,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 668 places, 1131 transitions, 45648 flow [2022-12-13 20:36:53,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 20:36:53,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-13 20:36:53,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2725 transitions. [2022-12-13 20:36:53,542 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45875420875420875 [2022-12-13 20:36:53,542 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2725 transitions. [2022-12-13 20:36:53,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2725 transitions. [2022-12-13 20:36:53,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:36:53,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2725 transitions. [2022-12-13 20:36:53,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 136.25) internal successors, (2725), 20 states have internal predecessors, (2725), 0 states have call successors, (0), 0 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 20:36:53,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 297.0) internal successors, (6237), 21 states have internal predecessors, (6237), 0 states have call successors, (0), 0 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 20:36:53,546 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 297.0) internal successors, (6237), 21 states have internal predecessors, (6237), 0 states have call successors, (0), 0 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 20:36:53,546 INFO L175 Difference]: Start difference. First operand has 651 places, 1088 transitions, 42491 flow. Second operand 20 states and 2725 transitions. [2022-12-13 20:36:53,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 668 places, 1131 transitions, 45648 flow [2022-12-13 20:36:55,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 653 places, 1131 transitions, 44447 flow, removed 98 selfloop flow, removed 15 redundant places. [2022-12-13 20:36:55,724 INFO L231 Difference]: Finished difference. Result has 654 places, 1083 transitions, 41649 flow [2022-12-13 20:36:55,724 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=41009, PETRI_DIFFERENCE_MINUEND_PLACES=634, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1081, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=261, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=819, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=41649, PETRI_PLACES=654, PETRI_TRANSITIONS=1083} [2022-12-13 20:36:55,724 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 616 predicate places. [2022-12-13 20:36:55,724 INFO L495 AbstractCegarLoop]: Abstraction has has 654 places, 1083 transitions, 41649 flow [2022-12-13 20:36:55,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 132.16666666666666) internal successors, (1586), 12 states have internal predecessors, (1586), 0 states have call successors, (0), 0 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 20:36:55,725 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:36:55,725 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:36:55,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-12-13 20:36:55,725 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:36:55,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:36:55,725 INFO L85 PathProgramCache]: Analyzing trace with hash -107352767, now seen corresponding path program 6 times [2022-12-13 20:36:55,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:36:55,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148391280] [2022-12-13 20:36:55,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:36:55,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:36:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:36:56,121 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 20:36:56,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:36:56,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148391280] [2022-12-13 20:36:56,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148391280] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:36:56,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:36:56,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:36:56,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154371493] [2022-12-13 20:36:56,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:36:56,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:36:56,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:36:56,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:36:56,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:36:56,547 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 297 [2022-12-13 20:36:56,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 1083 transitions, 41649 flow. Second operand has 11 states, 11 states have (on average 136.27272727272728) internal successors, (1499), 11 states have internal predecessors, (1499), 0 states have call successors, (0), 0 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 20:36:56,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:36:56,547 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 297 [2022-12-13 20:36:56,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:36:59,775 INFO L130 PetriNetUnfolder]: 1042/3974 cut-off events. [2022-12-13 20:36:59,775 INFO L131 PetriNetUnfolder]: For 332877/332877 co-relation queries the response was YES. [2022-12-13 20:36:59,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54911 conditions, 3974 events. 1042/3974 cut-off events. For 332877/332877 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 45372 event pairs, 445 based on Foata normal form. 4/3978 useless extension candidates. Maximal degree in co-relation 54601. Up to 3175 conditions per place. [2022-12-13 20:36:59,827 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 1006 selfloop transitions, 144 changer transitions 0/1152 dead transitions. [2022-12-13 20:36:59,827 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 671 places, 1152 transitions, 46168 flow [2022-12-13 20:36:59,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 20:36:59,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 20:36:59,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2517 transitions. [2022-12-13 20:36:59,829 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4708193041526375 [2022-12-13 20:36:59,829 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2517 transitions. [2022-12-13 20:36:59,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2517 transitions. [2022-12-13 20:36:59,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:36:59,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2517 transitions. [2022-12-13 20:36:59,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 139.83333333333334) internal successors, (2517), 18 states have internal predecessors, (2517), 0 states have call successors, (0), 0 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 20:36:59,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 297.0) internal successors, (5643), 19 states have internal predecessors, (5643), 0 states have call successors, (0), 0 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 20:36:59,833 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 297.0) internal successors, (5643), 19 states have internal predecessors, (5643), 0 states have call successors, (0), 0 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 20:36:59,833 INFO L175 Difference]: Start difference. First operand has 654 places, 1083 transitions, 41649 flow. Second operand 18 states and 2517 transitions. [2022-12-13 20:36:59,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 671 places, 1152 transitions, 46168 flow [2022-12-13 20:37:02,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 663 places, 1152 transitions, 45846 flow, removed 61 selfloop flow, removed 8 redundant places. [2022-12-13 20:37:02,036 INFO L231 Difference]: Finished difference. Result has 666 places, 1098 transitions, 42247 flow [2022-12-13 20:37:02,037 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=41357, PETRI_DIFFERENCE_MINUEND_PLACES=646, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1083, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=939, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=42247, PETRI_PLACES=666, PETRI_TRANSITIONS=1098} [2022-12-13 20:37:02,037 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 628 predicate places. [2022-12-13 20:37:02,037 INFO L495 AbstractCegarLoop]: Abstraction has has 666 places, 1098 transitions, 42247 flow [2022-12-13 20:37:02,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 136.27272727272728) internal successors, (1499), 11 states have internal predecessors, (1499), 0 states have call successors, (0), 0 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 20:37:02,037 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:37:02,038 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:37:02,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-12-13 20:37:02,038 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:37:02,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:37:02,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1497246175, now seen corresponding path program 7 times [2022-12-13 20:37:02,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:37:02,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105569510] [2022-12-13 20:37:02,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:37:02,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:37:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:37:02,587 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 20:37:02,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:37:02,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105569510] [2022-12-13 20:37:02,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105569510] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:37:02,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:37:02,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:37:02,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343555088] [2022-12-13 20:37:02,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:37:02,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:37:02,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:37:02,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:37:02,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:37:02,985 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 297 [2022-12-13 20:37:02,986 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 666 places, 1098 transitions, 42247 flow. Second operand has 12 states, 12 states have (on average 133.16666666666666) internal successors, (1598), 12 states have internal predecessors, (1598), 0 states have call successors, (0), 0 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 20:37:02,986 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:37:02,986 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 297 [2022-12-13 20:37:02,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:37:06,038 INFO L130 PetriNetUnfolder]: 1048/3986 cut-off events. [2022-12-13 20:37:06,039 INFO L131 PetriNetUnfolder]: For 331811/331811 co-relation queries the response was YES. [2022-12-13 20:37:06,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55014 conditions, 3986 events. 1048/3986 cut-off events. For 331811/331811 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 45551 event pairs, 389 based on Foata normal form. 8/3994 useless extension candidates. Maximal degree in co-relation 54702. Up to 2598 conditions per place. [2022-12-13 20:37:06,092 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 880 selfloop transitions, 266 changer transitions 0/1148 dead transitions. [2022-12-13 20:37:06,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 683 places, 1148 transitions, 45821 flow [2022-12-13 20:37:06,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 20:37:06,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-13 20:37:06,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2614 transitions. [2022-12-13 20:37:06,094 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4632287790182527 [2022-12-13 20:37:06,094 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2614 transitions. [2022-12-13 20:37:06,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2614 transitions. [2022-12-13 20:37:06,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:37:06,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2614 transitions. [2022-12-13 20:37:06,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 137.57894736842104) internal successors, (2614), 19 states have internal predecessors, (2614), 0 states have call successors, (0), 0 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 20:37:06,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 297.0) internal successors, (5940), 20 states have internal predecessors, (5940), 0 states have call successors, (0), 0 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 20:37:06,099 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 297.0) internal successors, (5940), 20 states have internal predecessors, (5940), 0 states have call successors, (0), 0 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 20:37:06,099 INFO L175 Difference]: Start difference. First operand has 666 places, 1098 transitions, 42247 flow. Second operand 19 states and 2614 transitions. [2022-12-13 20:37:06,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 683 places, 1148 transitions, 45821 flow [2022-12-13 20:37:08,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 664 places, 1148 transitions, 45331 flow, removed 9 selfloop flow, removed 19 redundant places. [2022-12-13 20:37:08,415 INFO L231 Difference]: Finished difference. Result has 666 places, 1103 transitions, 42548 flow [2022-12-13 20:37:08,416 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=41467, PETRI_DIFFERENCE_MINUEND_PLACES=646, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1091, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=254, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=825, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=42548, PETRI_PLACES=666, PETRI_TRANSITIONS=1103} [2022-12-13 20:37:08,416 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 628 predicate places. [2022-12-13 20:37:08,416 INFO L495 AbstractCegarLoop]: Abstraction has has 666 places, 1103 transitions, 42548 flow [2022-12-13 20:37:08,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 133.16666666666666) internal successors, (1598), 12 states have internal predecessors, (1598), 0 states have call successors, (0), 0 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 20:37:08,417 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:37:08,417 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:37:08,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-12-13 20:37:08,417 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:37:08,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:37:08,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1997215545, now seen corresponding path program 8 times [2022-12-13 20:37:08,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:37:08,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981659542] [2022-12-13 20:37:08,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:37:08,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:37:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:37:08,887 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 20:37:08,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:37:08,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981659542] [2022-12-13 20:37:08,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981659542] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:37:08,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:37:08,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:37:08,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757569630] [2022-12-13 20:37:08,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:37:08,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:37:08,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:37:08,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:37:08,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:37:09,423 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2022-12-13 20:37:09,424 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 666 places, 1103 transitions, 42548 flow. Second operand has 14 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 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 20:37:09,424 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:37:09,424 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2022-12-13 20:37:09,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:37:13,454 INFO L130 PetriNetUnfolder]: 1043/4074 cut-off events. [2022-12-13 20:37:13,454 INFO L131 PetriNetUnfolder]: For 341062/341062 co-relation queries the response was YES. [2022-12-13 20:37:13,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55952 conditions, 4074 events. 1043/4074 cut-off events. For 341062/341062 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 47198 event pairs, 135 based on Foata normal form. 21/4095 useless extension candidates. Maximal degree in co-relation 55639. Up to 1896 conditions per place. [2022-12-13 20:37:13,507 INFO L137 encePairwiseOnDemand]: 281/297 looper letters, 438 selfloop transitions, 776 changer transitions 3/1219 dead transitions. [2022-12-13 20:37:13,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 689 places, 1219 transitions, 47830 flow [2022-12-13 20:37:13,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-13 20:37:13,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-12-13 20:37:13,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3355 transitions. [2022-12-13 20:37:13,510 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45185185185185184 [2022-12-13 20:37:13,510 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3355 transitions. [2022-12-13 20:37:13,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3355 transitions. [2022-12-13 20:37:13,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:37:13,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3355 transitions. [2022-12-13 20:37:13,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 134.2) internal successors, (3355), 25 states have internal predecessors, (3355), 0 states have call successors, (0), 0 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 20:37:13,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 297.0) internal successors, (7722), 26 states have internal predecessors, (7722), 0 states have call successors, (0), 0 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 20:37:13,515 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 297.0) internal successors, (7722), 26 states have internal predecessors, (7722), 0 states have call successors, (0), 0 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 20:37:13,515 INFO L175 Difference]: Start difference. First operand has 666 places, 1103 transitions, 42548 flow. Second operand 25 states and 3355 transitions. [2022-12-13 20:37:13,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 689 places, 1219 transitions, 47830 flow [2022-12-13 20:37:15,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 679 places, 1219 transitions, 47539 flow, removed 27 selfloop flow, removed 10 redundant places. [2022-12-13 20:37:15,765 INFO L231 Difference]: Finished difference. Result has 689 places, 1166 transitions, 46432 flow [2022-12-13 20:37:15,766 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=42159, PETRI_DIFFERENCE_MINUEND_PLACES=655, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=711, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=46432, PETRI_PLACES=689, PETRI_TRANSITIONS=1166} [2022-12-13 20:37:15,766 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 651 predicate places. [2022-12-13 20:37:15,766 INFO L495 AbstractCegarLoop]: Abstraction has has 689 places, 1166 transitions, 46432 flow [2022-12-13 20:37:15,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 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 20:37:15,766 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:37:15,766 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:37:15,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-12-13 20:37:15,766 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:37:15,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:37:15,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1157628676, now seen corresponding path program 3 times [2022-12-13 20:37:15,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:37:15,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134900876] [2022-12-13 20:37:15,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:37:15,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:37:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:37:16,180 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 20:37:16,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:37:16,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134900876] [2022-12-13 20:37:16,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134900876] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:37:16,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:37:16,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:37:16,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341350807] [2022-12-13 20:37:16,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:37:16,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:37:16,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:37:16,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:37:16,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:37:16,621 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2022-12-13 20:37:16,622 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 689 places, 1166 transitions, 46432 flow. Second operand has 12 states, 12 states have (on average 130.16666666666666) internal successors, (1562), 12 states have internal predecessors, (1562), 0 states have call successors, (0), 0 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 20:37:16,622 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:37:16,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2022-12-13 20:37:16,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:37:20,372 INFO L130 PetriNetUnfolder]: 997/4024 cut-off events. [2022-12-13 20:37:20,373 INFO L131 PetriNetUnfolder]: For 393802/393802 co-relation queries the response was YES. [2022-12-13 20:37:20,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58795 conditions, 4024 events. 997/4024 cut-off events. For 393802/393802 co-relation queries the response was YES. Maximal size of possible extension queue 452. Compared 47056 event pairs, 279 based on Foata normal form. 26/4050 useless extension candidates. Maximal degree in co-relation 58528. Up to 1753 conditions per place. [2022-12-13 20:37:20,420 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 790 selfloop transitions, 421 changer transitions 9/1222 dead transitions. [2022-12-13 20:37:20,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 703 places, 1222 transitions, 50489 flow [2022-12-13 20:37:20,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:37:20,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 20:37:20,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2153 transitions. [2022-12-13 20:37:20,422 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45307239057239057 [2022-12-13 20:37:20,422 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2153 transitions. [2022-12-13 20:37:20,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2153 transitions. [2022-12-13 20:37:20,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:37:20,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2153 transitions. [2022-12-13 20:37:20,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 134.5625) internal successors, (2153), 16 states have internal predecessors, (2153), 0 states have call successors, (0), 0 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 20:37:20,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:37:20,426 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:37:20,426 INFO L175 Difference]: Start difference. First operand has 689 places, 1166 transitions, 46432 flow. Second operand 16 states and 2153 transitions. [2022-12-13 20:37:20,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 703 places, 1222 transitions, 50489 flow [2022-12-13 20:37:22,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 690 places, 1222 transitions, 49743 flow, removed 128 selfloop flow, removed 13 redundant places. [2022-12-13 20:37:22,909 INFO L231 Difference]: Finished difference. Result has 695 places, 1165 transitions, 46664 flow [2022-12-13 20:37:22,910 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=44701, PETRI_DIFFERENCE_MINUEND_PLACES=675, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=384, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=730, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=46664, PETRI_PLACES=695, PETRI_TRANSITIONS=1165} [2022-12-13 20:37:22,910 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 657 predicate places. [2022-12-13 20:37:22,910 INFO L495 AbstractCegarLoop]: Abstraction has has 695 places, 1165 transitions, 46664 flow [2022-12-13 20:37:22,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 130.16666666666666) internal successors, (1562), 12 states have internal predecessors, (1562), 0 states have call successors, (0), 0 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 20:37:22,911 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:37:22,911 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:37:22,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-12-13 20:37:22,911 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:37:22,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:37:22,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1157628677, now seen corresponding path program 9 times [2022-12-13 20:37:22,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:37:22,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368915894] [2022-12-13 20:37:22,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:37:22,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:37:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:37:23,422 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 20:37:23,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:37:23,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368915894] [2022-12-13 20:37:23,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368915894] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:37:23,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:37:23,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:37:23,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857134899] [2022-12-13 20:37:23,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:37:23,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:37:23,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:37:23,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:37:23,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:37:23,989 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2022-12-13 20:37:23,990 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 695 places, 1165 transitions, 46664 flow. Second operand has 14 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 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 20:37:23,991 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:37:23,991 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2022-12-13 20:37:23,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:37:27,631 INFO L130 PetriNetUnfolder]: 828/3502 cut-off events. [2022-12-13 20:37:27,631 INFO L131 PetriNetUnfolder]: For 352594/352594 co-relation queries the response was YES. [2022-12-13 20:37:27,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51534 conditions, 3502 events. 828/3502 cut-off events. For 352594/352594 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 40507 event pairs, 273 based on Foata normal form. 69/3571 useless extension candidates. Maximal degree in co-relation 51199. Up to 1753 conditions per place. [2022-12-13 20:37:27,678 INFO L137 encePairwiseOnDemand]: 281/297 looper letters, 659 selfloop transitions, 385 changer transitions 91/1137 dead transitions. [2022-12-13 20:37:27,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 708 places, 1137 transitions, 46742 flow [2022-12-13 20:37:27,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:37:27,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 20:37:27,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2145 transitions. [2022-12-13 20:37:27,680 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4513888888888889 [2022-12-13 20:37:27,680 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2145 transitions. [2022-12-13 20:37:27,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2145 transitions. [2022-12-13 20:37:27,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:37:27,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2145 transitions. [2022-12-13 20:37:27,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 134.0625) internal successors, (2145), 16 states have internal predecessors, (2145), 0 states have call successors, (0), 0 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 20:37:27,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:37:27,683 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:37:27,683 INFO L175 Difference]: Start difference. First operand has 695 places, 1165 transitions, 46664 flow. Second operand 16 states and 2145 transitions. [2022-12-13 20:37:27,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 708 places, 1137 transitions, 46742 flow [2022-12-13 20:37:30,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 697 places, 1137 transitions, 46005 flow, removed 250 selfloop flow, removed 11 redundant places. [2022-12-13 20:37:30,130 INFO L231 Difference]: Finished difference. Result has 704 places, 1018 transitions, 40396 flow [2022-12-13 20:37:30,131 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=42409, PETRI_DIFFERENCE_MINUEND_PLACES=682, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1084, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=363, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=714, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=40396, PETRI_PLACES=704, PETRI_TRANSITIONS=1018} [2022-12-13 20:37:30,131 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 666 predicate places. [2022-12-13 20:37:30,131 INFO L495 AbstractCegarLoop]: Abstraction has has 704 places, 1018 transitions, 40396 flow [2022-12-13 20:37:30,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 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 20:37:30,132 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:37:30,132 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:37:30,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-12-13 20:37:30,132 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:37:30,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:37:30,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1016546561, now seen corresponding path program 1 times [2022-12-13 20:37:30,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:37:30,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043060729] [2022-12-13 20:37:30,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:37:30,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:37:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:37:30,748 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 20:37:30,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:37:30,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043060729] [2022-12-13 20:37:30,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043060729] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:37:30,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:37:30,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:37:30,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320453181] [2022-12-13 20:37:30,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:37:30,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 20:37:30,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:37:30,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 20:37:30,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:37:31,058 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2022-12-13 20:37:31,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 704 places, 1018 transitions, 40396 flow. Second operand has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 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 20:37:31,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:37:31,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2022-12-13 20:37:31,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:37:33,630 INFO L130 PetriNetUnfolder]: 758/3483 cut-off events. [2022-12-13 20:37:33,630 INFO L131 PetriNetUnfolder]: For 359879/359879 co-relation queries the response was YES. [2022-12-13 20:37:33,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51268 conditions, 3483 events. 758/3483 cut-off events. For 359879/359879 co-relation queries the response was YES. Maximal size of possible extension queue 378. Compared 40910 event pairs, 114 based on Foata normal form. 38/3521 useless extension candidates. Maximal degree in co-relation 50923. Up to 1809 conditions per place. [2022-12-13 20:37:33,675 INFO L137 encePairwiseOnDemand]: 286/297 looper letters, 609 selfloop transitions, 366 changer transitions 91/1068 dead transitions. [2022-12-13 20:37:33,675 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 707 places, 1068 transitions, 44874 flow [2022-12-13 20:37:33,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 20:37:33,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 20:37:33,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1092 transitions. [2022-12-13 20:37:33,677 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4595959595959596 [2022-12-13 20:37:33,677 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1092 transitions. [2022-12-13 20:37:33,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1092 transitions. [2022-12-13 20:37:33,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:37:33,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1092 transitions. [2022-12-13 20:37:33,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 136.5) internal successors, (1092), 8 states have internal predecessors, (1092), 0 states have call successors, (0), 0 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 20:37:33,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 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 20:37:33,679 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 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 20:37:33,679 INFO L175 Difference]: Start difference. First operand has 704 places, 1018 transitions, 40396 flow. Second operand 8 states and 1092 transitions. [2022-12-13 20:37:33,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 707 places, 1068 transitions, 44874 flow [2022-12-13 20:37:35,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 659 places, 1068 transitions, 43606 flow, removed 113 selfloop flow, removed 48 redundant places. [2022-12-13 20:37:36,002 INFO L231 Difference]: Finished difference. Result has 662 places, 936 transitions, 37567 flow [2022-12-13 20:37:36,002 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=39205, PETRI_DIFFERENCE_MINUEND_PLACES=652, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1018, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=364, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=37567, PETRI_PLACES=662, PETRI_TRANSITIONS=936} [2022-12-13 20:37:36,003 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 624 predicate places. [2022-12-13 20:37:36,003 INFO L495 AbstractCegarLoop]: Abstraction has has 662 places, 936 transitions, 37567 flow [2022-12-13 20:37:36,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 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 20:37:36,003 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:37:36,003 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:37:36,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-12-13 20:37:36,003 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:37:36,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:37:36,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1268013601, now seen corresponding path program 2 times [2022-12-13 20:37:36,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:37:36,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263431638] [2022-12-13 20:37:36,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:37:36,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:37:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:37:36,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:37:36,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:37:36,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263431638] [2022-12-13 20:37:36,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263431638] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:37:36,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:37:36,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:37:36,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784447046] [2022-12-13 20:37:36,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:37:36,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 20:37:36,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:37:36,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 20:37:36,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:37:36,855 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:37:36,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 662 places, 936 transitions, 37567 flow. Second operand has 9 states, 9 states have (on average 132.0) internal successors, (1188), 9 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 20:37:36,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:37:36,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:37:36,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:37:39,331 INFO L130 PetriNetUnfolder]: 610/3032 cut-off events. [2022-12-13 20:37:39,331 INFO L131 PetriNetUnfolder]: For 314671/314671 co-relation queries the response was YES. [2022-12-13 20:37:39,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45198 conditions, 3032 events. 610/3032 cut-off events. For 314671/314671 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 35335 event pairs, 178 based on Foata normal form. 62/3094 useless extension candidates. Maximal degree in co-relation 44863. Up to 1516 conditions per place. [2022-12-13 20:37:39,363 INFO L137 encePairwiseOnDemand]: 287/297 looper letters, 681 selfloop transitions, 145 changer transitions 124/952 dead transitions. [2022-12-13 20:37:39,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 662 places, 952 transitions, 39856 flow [2022-12-13 20:37:39,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:37:39,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 20:37:39,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 966 transitions. [2022-12-13 20:37:39,365 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46464646464646464 [2022-12-13 20:37:39,365 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 966 transitions. [2022-12-13 20:37:39,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 966 transitions. [2022-12-13 20:37:39,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:37:39,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 966 transitions. [2022-12-13 20:37:39,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.0) internal successors, (966), 7 states have internal predecessors, (966), 0 states have call successors, (0), 0 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 20:37:39,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 297.0) internal successors, (2376), 8 states have internal predecessors, (2376), 0 states have call successors, (0), 0 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 20:37:39,367 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 297.0) internal successors, (2376), 8 states have internal predecessors, (2376), 0 states have call successors, (0), 0 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 20:37:39,367 INFO L175 Difference]: Start difference. First operand has 662 places, 936 transitions, 37567 flow. Second operand 7 states and 966 transitions. [2022-12-13 20:37:39,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 662 places, 952 transitions, 39856 flow [2022-12-13 20:37:41,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 648 places, 952 transitions, 39493 flow, removed 84 selfloop flow, removed 14 redundant places. [2022-12-13 20:37:41,216 INFO L231 Difference]: Finished difference. Result has 649 places, 814 transitions, 32613 flow [2022-12-13 20:37:41,217 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=37212, PETRI_DIFFERENCE_MINUEND_PLACES=642, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=936, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=145, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=791, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=32613, PETRI_PLACES=649, PETRI_TRANSITIONS=814} [2022-12-13 20:37:41,217 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 611 predicate places. [2022-12-13 20:37:41,217 INFO L495 AbstractCegarLoop]: Abstraction has has 649 places, 814 transitions, 32613 flow [2022-12-13 20:37:41,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 132.0) internal successors, (1188), 9 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 20:37:41,217 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:37:41,217 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:37:41,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-12-13 20:37:41,217 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:37:41,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:37:41,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1445541976, now seen corresponding path program 1 times [2022-12-13 20:37:41,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:37:41,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529291069] [2022-12-13 20:37:41,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:37:41,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:37:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:37:41,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:37:41,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:37:41,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529291069] [2022-12-13 20:37:41,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529291069] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:37:41,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:37:41,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:37:41,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645417427] [2022-12-13 20:37:41,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:37:41,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:37:41,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:37:41,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:37:41,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:37:42,534 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 297 [2022-12-13 20:37:42,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 649 places, 814 transitions, 32613 flow. Second operand has 12 states, 12 states have (on average 127.5) internal successors, (1530), 12 states have internal predecessors, (1530), 0 states have call successors, (0), 0 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 20:37:42,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:37:42,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 297 [2022-12-13 20:37:42,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:37:44,696 INFO L130 PetriNetUnfolder]: 537/2719 cut-off events. [2022-12-13 20:37:44,696 INFO L131 PetriNetUnfolder]: For 273821/273821 co-relation queries the response was YES. [2022-12-13 20:37:44,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41046 conditions, 2719 events. 537/2719 cut-off events. For 273821/273821 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 31049 event pairs, 217 based on Foata normal form. 2/2721 useless extension candidates. Maximal degree in co-relation 40710. Up to 2237 conditions per place. [2022-12-13 20:37:44,730 INFO L137 encePairwiseOnDemand]: 286/297 looper letters, 825 selfloop transitions, 32 changer transitions 2/861 dead transitions. [2022-12-13 20:37:44,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 655 places, 861 transitions, 35801 flow [2022-12-13 20:37:44,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 20:37:44,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 20:37:44,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1692 transitions. [2022-12-13 20:37:44,732 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4382284382284382 [2022-12-13 20:37:44,732 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1692 transitions. [2022-12-13 20:37:44,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1692 transitions. [2022-12-13 20:37:44,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:37:44,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1692 transitions. [2022-12-13 20:37:44,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 130.15384615384616) internal successors, (1692), 13 states have internal predecessors, (1692), 0 states have call successors, (0), 0 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 20:37:44,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:37:44,735 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:37:44,735 INFO L175 Difference]: Start difference. First operand has 649 places, 814 transitions, 32613 flow. Second operand 13 states and 1692 transitions. [2022-12-13 20:37:44,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 655 places, 861 transitions, 35801 flow [2022-12-13 20:37:46,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 624 places, 861 transitions, 34142 flow, removed 50 selfloop flow, removed 31 redundant places. [2022-12-13 20:37:46,370 INFO L231 Difference]: Finished difference. Result has 630 places, 827 transitions, 31564 flow [2022-12-13 20:37:46,370 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=31057, PETRI_DIFFERENCE_MINUEND_PLACES=612, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=814, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=784, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=31564, PETRI_PLACES=630, PETRI_TRANSITIONS=827} [2022-12-13 20:37:46,370 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 592 predicate places. [2022-12-13 20:37:46,370 INFO L495 AbstractCegarLoop]: Abstraction has has 630 places, 827 transitions, 31564 flow [2022-12-13 20:37:46,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.5) internal successors, (1530), 12 states have internal predecessors, (1530), 0 states have call successors, (0), 0 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 20:37:46,371 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:37:46,371 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:37:46,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-12-13 20:37:46,371 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:37:46,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:37:46,371 INFO L85 PathProgramCache]: Analyzing trace with hash -506896633, now seen corresponding path program 3 times [2022-12-13 20:37:46,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:37:46,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565070212] [2022-12-13 20:37:46,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:37:46,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:37:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:37:46,701 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 20:37:46,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:37:46,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565070212] [2022-12-13 20:37:46,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565070212] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:37:46,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:37:46,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:37:46,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614619608] [2022-12-13 20:37:46,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:37:46,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 20:37:46,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:37:46,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 20:37:46,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:37:46,918 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2022-12-13 20:37:46,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 630 places, 827 transitions, 31564 flow. Second operand has 9 states, 9 states have (on average 132.0) internal successors, (1188), 9 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 20:37:46,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:37:46,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2022-12-13 20:37:46,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:37:48,808 INFO L130 PetriNetUnfolder]: 531/2680 cut-off events. [2022-12-13 20:37:48,808 INFO L131 PetriNetUnfolder]: For 259902/259902 co-relation queries the response was YES. [2022-12-13 20:37:48,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38436 conditions, 2680 events. 531/2680 cut-off events. For 259902/259902 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 30616 event pairs, 112 based on Foata normal form. 54/2734 useless extension candidates. Maximal degree in co-relation 38109. Up to 826 conditions per place. [2022-12-13 20:37:48,836 INFO L137 encePairwiseOnDemand]: 287/297 looper letters, 558 selfloop transitions, 137 changer transitions 140/837 dead transitions. [2022-12-13 20:37:48,837 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 837 transitions, 33195 flow [2022-12-13 20:37:48,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:37:48,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 20:37:48,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 969 transitions. [2022-12-13 20:37:48,838 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4660894660894661 [2022-12-13 20:37:48,838 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 969 transitions. [2022-12-13 20:37:48,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 969 transitions. [2022-12-13 20:37:48,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:37:48,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 969 transitions. [2022-12-13 20:37:48,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.42857142857142) internal successors, (969), 7 states have internal predecessors, (969), 0 states have call successors, (0), 0 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 20:37:48,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 297.0) internal successors, (2376), 8 states have internal predecessors, (2376), 0 states have call successors, (0), 0 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 20:37:48,839 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 297.0) internal successors, (2376), 8 states have internal predecessors, (2376), 0 states have call successors, (0), 0 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 20:37:48,839 INFO L175 Difference]: Start difference. First operand has 630 places, 827 transitions, 31564 flow. Second operand 7 states and 969 transitions. [2022-12-13 20:37:48,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 635 places, 837 transitions, 33195 flow [2022-12-13 20:37:50,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 632 places, 837 transitions, 33083 flow, removed 23 selfloop flow, removed 3 redundant places. [2022-12-13 20:37:50,327 INFO L231 Difference]: Finished difference. Result has 633 places, 683 transitions, 26263 flow [2022-12-13 20:37:50,327 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=31015, PETRI_DIFFERENCE_MINUEND_PLACES=626, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=820, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=683, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=26263, PETRI_PLACES=633, PETRI_TRANSITIONS=683} [2022-12-13 20:37:50,327 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 595 predicate places. [2022-12-13 20:37:50,327 INFO L495 AbstractCegarLoop]: Abstraction has has 633 places, 683 transitions, 26263 flow [2022-12-13 20:37:50,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 132.0) internal successors, (1188), 9 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 20:37:50,328 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:37:50,328 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:37:50,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-12-13 20:37:50,328 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:37:50,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:37:50,328 INFO L85 PathProgramCache]: Analyzing trace with hash 685463042, now seen corresponding path program 2 times [2022-12-13 20:37:50,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:37:50,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136778266] [2022-12-13 20:37:50,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:37:50,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:37:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:37:50,793 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 20:37:50,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:37:50,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136778266] [2022-12-13 20:37:50,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136778266] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:37:50,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:37:50,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:37:50,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579847331] [2022-12-13 20:37:50,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:37:50,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:37:50,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:37:50,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:37:50,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:37:51,395 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 297 [2022-12-13 20:37:51,396 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 633 places, 683 transitions, 26263 flow. Second operand has 11 states, 11 states have (on average 136.54545454545453) internal successors, (1502), 11 states have internal predecessors, (1502), 0 states have call successors, (0), 0 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 20:37:51,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:37:51,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 297 [2022-12-13 20:37:51,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:37:52,978 INFO L130 PetriNetUnfolder]: 396/2058 cut-off events. [2022-12-13 20:37:52,978 INFO L131 PetriNetUnfolder]: For 202981/202981 co-relation queries the response was YES. [2022-12-13 20:37:52,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30557 conditions, 2058 events. 396/2058 cut-off events. For 202981/202981 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 22436 event pairs, 122 based on Foata normal form. 8/2066 useless extension candidates. Maximal degree in co-relation 30370. Up to 1468 conditions per place. [2022-12-13 20:37:53,003 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 575 selfloop transitions, 70 changer transitions 2/684 dead transitions. [2022-12-13 20:37:53,003 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 610 places, 684 transitions, 27347 flow [2022-12-13 20:37:53,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 20:37:53,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 20:37:53,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1394 transitions. [2022-12-13 20:37:53,005 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46936026936026937 [2022-12-13 20:37:53,005 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1394 transitions. [2022-12-13 20:37:53,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1394 transitions. [2022-12-13 20:37:53,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:37:53,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1394 transitions. [2022-12-13 20:37:53,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 139.4) internal successors, (1394), 10 states have internal predecessors, (1394), 0 states have call successors, (0), 0 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 20:37:53,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 297.0) internal successors, (3267), 11 states have internal predecessors, (3267), 0 states have call successors, (0), 0 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 20:37:53,008 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 297.0) internal successors, (3267), 11 states have internal predecessors, (3267), 0 states have call successors, (0), 0 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 20:37:53,008 INFO L175 Difference]: Start difference. First operand has 633 places, 683 transitions, 26263 flow. Second operand 10 states and 1394 transitions. [2022-12-13 20:37:53,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 610 places, 684 transitions, 27347 flow [2022-12-13 20:37:54,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 684 transitions, 23882 flow, removed 132 selfloop flow, removed 64 redundant places. [2022-12-13 20:37:54,062 INFO L231 Difference]: Finished difference. Result has 546 places, 675 transitions, 22411 flow [2022-12-13 20:37:54,062 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=22271, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=605, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=22411, PETRI_PLACES=546, PETRI_TRANSITIONS=675} [2022-12-13 20:37:54,063 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 508 predicate places. [2022-12-13 20:37:54,063 INFO L495 AbstractCegarLoop]: Abstraction has has 546 places, 675 transitions, 22411 flow [2022-12-13 20:37:54,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 136.54545454545453) internal successors, (1502), 11 states have internal predecessors, (1502), 0 states have call successors, (0), 0 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 20:37:54,063 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:37:54,063 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:37:54,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-12-13 20:37:54,063 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:37:54,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:37:54,064 INFO L85 PathProgramCache]: Analyzing trace with hash 685463043, now seen corresponding path program 4 times [2022-12-13 20:37:54,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:37:54,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387102558] [2022-12-13 20:37:54,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:37:54,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:37:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:37:54,665 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 20:37:54,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:37:54,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387102558] [2022-12-13 20:37:54,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387102558] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:37:54,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:37:54,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:37:54,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493648072] [2022-12-13 20:37:54,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:37:54,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:37:54,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:37:54,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:37:54,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:37:55,462 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 297 [2022-12-13 20:37:55,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 675 transitions, 22411 flow. Second operand has 13 states, 13 states have (on average 128.3846153846154) internal successors, (1669), 13 states have internal predecessors, (1669), 0 states have call successors, (0), 0 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 20:37:55,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:37:55,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 297 [2022-12-13 20:37:55,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:37:56,838 INFO L130 PetriNetUnfolder]: 396/2053 cut-off events. [2022-12-13 20:37:56,838 INFO L131 PetriNetUnfolder]: For 153694/153694 co-relation queries the response was YES. [2022-12-13 20:37:56,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27193 conditions, 2053 events. 396/2053 cut-off events. For 153694/153694 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 22398 event pairs, 152 based on Foata normal form. 2/2055 useless extension candidates. Maximal degree in co-relation 27033. Up to 1745 conditions per place. [2022-12-13 20:37:56,860 INFO L137 encePairwiseOnDemand]: 286/297 looper letters, 593 selfloop transitions, 70 changer transitions 25/690 dead transitions. [2022-12-13 20:37:56,860 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 556 places, 690 transitions, 24233 flow [2022-12-13 20:37:56,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 20:37:56,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 20:37:56,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1444 transitions. [2022-12-13 20:37:56,861 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44199571472298743 [2022-12-13 20:37:56,862 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1444 transitions. [2022-12-13 20:37:56,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1444 transitions. [2022-12-13 20:37:56,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:37:56,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1444 transitions. [2022-12-13 20:37:56,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 131.27272727272728) internal successors, (1444), 11 states have internal predecessors, (1444), 0 states have call successors, (0), 0 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 20:37:56,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 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 20:37:56,864 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 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 20:37:56,864 INFO L175 Difference]: Start difference. First operand has 546 places, 675 transitions, 22411 flow. Second operand 11 states and 1444 transitions. [2022-12-13 20:37:56,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 556 places, 690 transitions, 24233 flow [2022-12-13 20:37:57,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 690 transitions, 23734 flow, removed 12 selfloop flow, removed 10 redundant places. [2022-12-13 20:37:57,652 INFO L231 Difference]: Finished difference. Result has 548 places, 665 transitions, 21861 flow [2022-12-13 20:37:57,652 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=21930, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=605, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=21861, PETRI_PLACES=548, PETRI_TRANSITIONS=665} [2022-12-13 20:37:57,652 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 510 predicate places. [2022-12-13 20:37:57,652 INFO L495 AbstractCegarLoop]: Abstraction has has 548 places, 665 transitions, 21861 flow [2022-12-13 20:37:57,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.3846153846154) internal successors, (1669), 13 states have internal predecessors, (1669), 0 states have call successors, (0), 0 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 20:37:57,653 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:37:57,653 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:37:57,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-12-13 20:37:57,653 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:37:57,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:37:57,653 INFO L85 PathProgramCache]: Analyzing trace with hash -115291907, now seen corresponding path program 5 times [2022-12-13 20:37:57,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:37:57,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213134690] [2022-12-13 20:37:57,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:37:57,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:37:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:37:58,175 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 20:37:58,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:37:58,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213134690] [2022-12-13 20:37:58,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213134690] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:37:58,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:37:58,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:37:58,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988999012] [2022-12-13 20:37:58,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:37:58,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:37:58,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:37:58,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:37:58,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:37:58,792 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 297 [2022-12-13 20:37:58,793 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 548 places, 665 transitions, 21861 flow. Second operand has 14 states, 14 states have (on average 128.28571428571428) internal successors, (1796), 14 states have internal predecessors, (1796), 0 states have call successors, (0), 0 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 20:37:58,793 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:37:58,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 297 [2022-12-13 20:37:58,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:38:00,367 INFO L130 PetriNetUnfolder]: 384/1998 cut-off events. [2022-12-13 20:38:00,367 INFO L131 PetriNetUnfolder]: For 145333/145333 co-relation queries the response was YES. [2022-12-13 20:38:00,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26086 conditions, 1998 events. 384/1998 cut-off events. For 145333/145333 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 21773 event pairs, 120 based on Foata normal form. 2/2000 useless extension candidates. Maximal degree in co-relation 25926. Up to 1492 conditions per place. [2022-12-13 20:38:00,388 INFO L137 encePairwiseOnDemand]: 286/297 looper letters, 560 selfloop transitions, 86 changer transitions 34/682 dead transitions. [2022-12-13 20:38:00,388 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 554 places, 682 transitions, 23762 flow [2022-12-13 20:38:00,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 20:38:00,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 20:38:00,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1581 transitions. [2022-12-13 20:38:00,389 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4436026936026936 [2022-12-13 20:38:00,389 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1581 transitions. [2022-12-13 20:38:00,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1581 transitions. [2022-12-13 20:38:00,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:38:00,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1581 transitions. [2022-12-13 20:38:00,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 131.75) internal successors, (1581), 12 states have internal predecessors, (1581), 0 states have call successors, (0), 0 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 20:38:00,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:38:00,392 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:38:00,392 INFO L175 Difference]: Start difference. First operand has 548 places, 665 transitions, 21861 flow. Second operand 12 states and 1581 transitions. [2022-12-13 20:38:00,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 554 places, 682 transitions, 23762 flow [2022-12-13 20:38:01,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 682 transitions, 23584 flow, removed 16 selfloop flow, removed 14 redundant places. [2022-12-13 20:38:01,133 INFO L231 Difference]: Finished difference. Result has 542 places, 642 transitions, 21350 flow [2022-12-13 20:38:01,134 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=21685, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=665, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=579, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=21350, PETRI_PLACES=542, PETRI_TRANSITIONS=642} [2022-12-13 20:38:01,134 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 504 predicate places. [2022-12-13 20:38:01,134 INFO L495 AbstractCegarLoop]: Abstraction has has 542 places, 642 transitions, 21350 flow [2022-12-13 20:38:01,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.28571428571428) internal successors, (1796), 14 states have internal predecessors, (1796), 0 states have call successors, (0), 0 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 20:38:01,134 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:38:01,134 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:01,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-12-13 20:38:01,135 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:38:01,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:01,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1187299887, now seen corresponding path program 6 times [2022-12-13 20:38:01,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:01,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18439979] [2022-12-13 20:38:01,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:01,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:01,387 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 20:38:01,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:38:01,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18439979] [2022-12-13 20:38:01,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18439979] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:01,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:01,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 20:38:01,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117898701] [2022-12-13 20:38:01,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:01,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 20:38:01,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:38:01,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 20:38:01,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:38:01,565 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 297 [2022-12-13 20:38:01,565 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 642 transitions, 21350 flow. Second operand has 8 states, 8 states have (on average 136.25) internal successors, (1090), 8 states have internal predecessors, (1090), 0 states have call successors, (0), 0 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 20:38:01,565 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:38:01,565 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 297 [2022-12-13 20:38:01,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:38:02,666 INFO L130 PetriNetUnfolder]: 346/1888 cut-off events. [2022-12-13 20:38:02,666 INFO L131 PetriNetUnfolder]: For 138616/138616 co-relation queries the response was YES. [2022-12-13 20:38:02,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24698 conditions, 1888 events. 346/1888 cut-off events. For 138616/138616 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 20470 event pairs, 127 based on Foata normal form. 5/1893 useless extension candidates. Maximal degree in co-relation 24544. Up to 1012 conditions per place. [2022-12-13 20:38:02,685 INFO L137 encePairwiseOnDemand]: 290/297 looper letters, 559 selfloop transitions, 63 changer transitions 11/663 dead transitions. [2022-12-13 20:38:02,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 663 transitions, 23035 flow [2022-12-13 20:38:02,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:38:02,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 20:38:02,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 984 transitions. [2022-12-13 20:38:02,686 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4733044733044733 [2022-12-13 20:38:02,686 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 984 transitions. [2022-12-13 20:38:02,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 984 transitions. [2022-12-13 20:38:02,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:38:02,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 984 transitions. [2022-12-13 20:38:02,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 140.57142857142858) internal successors, (984), 7 states have internal predecessors, (984), 0 states have call successors, (0), 0 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 20:38:02,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 297.0) internal successors, (2376), 8 states have internal predecessors, (2376), 0 states have call successors, (0), 0 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 20:38:02,688 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 297.0) internal successors, (2376), 8 states have internal predecessors, (2376), 0 states have call successors, (0), 0 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 20:38:02,688 INFO L175 Difference]: Start difference. First operand has 542 places, 642 transitions, 21350 flow. Second operand 7 states and 984 transitions. [2022-12-13 20:38:02,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 663 transitions, 23035 flow [2022-12-13 20:38:03,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 663 transitions, 21884 flow, removed 4 selfloop flow, removed 16 redundant places. [2022-12-13 20:38:03,372 INFO L231 Difference]: Finished difference. Result has 526 places, 636 transitions, 20204 flow [2022-12-13 20:38:03,373 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=20205, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=642, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=579, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=20204, PETRI_PLACES=526, PETRI_TRANSITIONS=636} [2022-12-13 20:38:03,373 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 488 predicate places. [2022-12-13 20:38:03,373 INFO L495 AbstractCegarLoop]: Abstraction has has 526 places, 636 transitions, 20204 flow [2022-12-13 20:38:03,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 136.25) internal successors, (1090), 8 states have internal predecessors, (1090), 0 states have call successors, (0), 0 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 20:38:03,373 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:38:03,373 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:03,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-12-13 20:38:03,373 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:38:03,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:03,374 INFO L85 PathProgramCache]: Analyzing trace with hash 63752453, now seen corresponding path program 7 times [2022-12-13 20:38:03,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:03,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033251829] [2022-12-13 20:38:03,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:03,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:04,124 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 20:38:04,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:38:04,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033251829] [2022-12-13 20:38:04,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033251829] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:04,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:04,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:38:04,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667729331] [2022-12-13 20:38:04,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:04,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:38:04,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:38:04,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:38:04,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:38:04,798 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 297 [2022-12-13 20:38:04,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 526 places, 636 transitions, 20204 flow. Second operand has 14 states, 14 states have (on average 127.28571428571429) internal successors, (1782), 14 states have internal predecessors, (1782), 0 states have call successors, (0), 0 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 20:38:04,799 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:38:04,799 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 297 [2022-12-13 20:38:04,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:38:06,128 INFO L130 PetriNetUnfolder]: 345/1873 cut-off events. [2022-12-13 20:38:06,128 INFO L131 PetriNetUnfolder]: For 126175/126175 co-relation queries the response was YES. [2022-12-13 20:38:06,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23917 conditions, 1873 events. 345/1873 cut-off events. For 126175/126175 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 20290 event pairs, 127 based on Foata normal form. 2/1875 useless extension candidates. Maximal degree in co-relation 23766. Up to 1563 conditions per place. [2022-12-13 20:38:06,146 INFO L137 encePairwiseOnDemand]: 285/297 looper letters, 545 selfloop transitions, 69 changer transitions 29/645 dead transitions. [2022-12-13 20:38:06,146 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 536 places, 645 transitions, 21760 flow [2022-12-13 20:38:06,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 20:38:06,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 20:38:06,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1561 transitions. [2022-12-13 20:38:06,147 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43799102132435463 [2022-12-13 20:38:06,147 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1561 transitions. [2022-12-13 20:38:06,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1561 transitions. [2022-12-13 20:38:06,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:38:06,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1561 transitions. [2022-12-13 20:38:06,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 130.08333333333334) internal successors, (1561), 12 states have internal predecessors, (1561), 0 states have call successors, (0), 0 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 20:38:06,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:38:06,150 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:38:06,150 INFO L175 Difference]: Start difference. First operand has 526 places, 636 transitions, 20204 flow. Second operand 12 states and 1561 transitions. [2022-12-13 20:38:06,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 536 places, 645 transitions, 21760 flow [2022-12-13 20:38:06,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 517 places, 645 transitions, 21457 flow, removed 6 selfloop flow, removed 19 redundant places. [2022-12-13 20:38:06,755 INFO L231 Difference]: Finished difference. Result has 519 places, 616 transitions, 19651 flow [2022-12-13 20:38:06,755 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=19907, PETRI_DIFFERENCE_MINUEND_PLACES=506, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=636, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=567, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=19651, PETRI_PLACES=519, PETRI_TRANSITIONS=616} [2022-12-13 20:38:06,755 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 481 predicate places. [2022-12-13 20:38:06,755 INFO L495 AbstractCegarLoop]: Abstraction has has 519 places, 616 transitions, 19651 flow [2022-12-13 20:38:06,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 127.28571428571429) internal successors, (1782), 14 states have internal predecessors, (1782), 0 states have call successors, (0), 0 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 20:38:06,755 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:38:06,755 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:06,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-12-13 20:38:06,756 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:38:06,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:06,756 INFO L85 PathProgramCache]: Analyzing trace with hash 837897295, now seen corresponding path program 8 times [2022-12-13 20:38:06,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:06,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603410492] [2022-12-13 20:38:06,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:06,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:07,293 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 20:38:07,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:38:07,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603410492] [2022-12-13 20:38:07,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603410492] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:07,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:07,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:38:07,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207362075] [2022-12-13 20:38:07,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:07,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:38:07,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:38:07,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:38:07,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:38:08,330 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 297 [2022-12-13 20:38:08,330 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 519 places, 616 transitions, 19651 flow. Second operand has 13 states, 13 states have (on average 128.3846153846154) internal successors, (1669), 13 states have internal predecessors, (1669), 0 states have call successors, (0), 0 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 20:38:08,331 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:38:08,331 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 297 [2022-12-13 20:38:08,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:38:09,655 INFO L130 PetriNetUnfolder]: 333/1810 cut-off events. [2022-12-13 20:38:09,655 INFO L131 PetriNetUnfolder]: For 119454/119454 co-relation queries the response was YES. [2022-12-13 20:38:09,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23009 conditions, 1810 events. 333/1810 cut-off events. For 119454/119454 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 19629 event pairs, 117 based on Foata normal form. 4/1814 useless extension candidates. Maximal degree in co-relation 22858. Up to 1427 conditions per place. [2022-12-13 20:38:09,673 INFO L137 encePairwiseOnDemand]: 286/297 looper letters, 541 selfloop transitions, 54 changer transitions 36/633 dead transitions. [2022-12-13 20:38:09,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 633 transitions, 21465 flow [2022-12-13 20:38:09,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 20:38:09,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 20:38:09,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1710 transitions. [2022-12-13 20:38:09,674 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4428904428904429 [2022-12-13 20:38:09,674 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1710 transitions. [2022-12-13 20:38:09,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1710 transitions. [2022-12-13 20:38:09,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:38:09,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1710 transitions. [2022-12-13 20:38:09,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 131.53846153846155) internal successors, (1710), 13 states have internal predecessors, (1710), 0 states have call successors, (0), 0 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 20:38:09,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:38:09,677 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:38:09,677 INFO L175 Difference]: Start difference. First operand has 519 places, 616 transitions, 19651 flow. Second operand 13 states and 1710 transitions. [2022-12-13 20:38:09,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 633 transitions, 21465 flow [2022-12-13 20:38:10,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 633 transitions, 21197 flow, removed 1 selfloop flow, removed 20 redundant places. [2022-12-13 20:38:10,285 INFO L231 Difference]: Finished difference. Result has 495 places, 585 transitions, 19000 flow [2022-12-13 20:38:10,285 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=19349, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=614, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=560, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=19000, PETRI_PLACES=495, PETRI_TRANSITIONS=585} [2022-12-13 20:38:10,285 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 457 predicate places. [2022-12-13 20:38:10,285 INFO L495 AbstractCegarLoop]: Abstraction has has 495 places, 585 transitions, 19000 flow [2022-12-13 20:38:10,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.3846153846154) internal successors, (1669), 13 states have internal predecessors, (1669), 0 states have call successors, (0), 0 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 20:38:10,286 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:38:10,286 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:10,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-12-13 20:38:10,286 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:38:10,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:10,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1289336926, now seen corresponding path program 3 times [2022-12-13 20:38:10,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:10,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105439139] [2022-12-13 20:38:10,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:10,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:10,621 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 20:38:10,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:38:10,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105439139] [2022-12-13 20:38:10,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105439139] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:10,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:10,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:38:10,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757912559] [2022-12-13 20:38:10,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:10,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:38:10,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:38:10,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:38:10,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:38:11,164 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 297 [2022-12-13 20:38:11,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 585 transitions, 19000 flow. Second operand has 11 states, 11 states have (on average 136.54545454545453) internal successors, (1502), 11 states have internal predecessors, (1502), 0 states have call successors, (0), 0 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 20:38:11,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:38:11,165 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 297 [2022-12-13 20:38:11,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:38:12,289 INFO L130 PetriNetUnfolder]: 317/1709 cut-off events. [2022-12-13 20:38:12,289 INFO L131 PetriNetUnfolder]: For 112809/112809 co-relation queries the response was YES. [2022-12-13 20:38:12,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21628 conditions, 1709 events. 317/1709 cut-off events. For 112809/112809 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 18440 event pairs, 90 based on Foata normal form. 9/1718 useless extension candidates. Maximal degree in co-relation 21479. Up to 661 conditions per place. [2022-12-13 20:38:12,306 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 481 selfloop transitions, 87 changer transitions 0/593 dead transitions. [2022-12-13 20:38:12,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 593 transitions, 20085 flow [2022-12-13 20:38:12,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 20:38:12,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 20:38:12,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1537 transitions. [2022-12-13 20:38:12,307 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.470462197734925 [2022-12-13 20:38:12,307 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1537 transitions. [2022-12-13 20:38:12,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1537 transitions. [2022-12-13 20:38:12,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:38:12,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1537 transitions. [2022-12-13 20:38:12,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 139.72727272727272) internal successors, (1537), 11 states have internal predecessors, (1537), 0 states have call successors, (0), 0 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 20:38:12,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 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 20:38:12,310 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 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 20:38:12,310 INFO L175 Difference]: Start difference. First operand has 495 places, 585 transitions, 19000 flow. Second operand 11 states and 1537 transitions. [2022-12-13 20:38:12,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 593 transitions, 20085 flow [2022-12-13 20:38:12,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 593 transitions, 19650 flow, removed 3 selfloop flow, removed 16 redundant places. [2022-12-13 20:38:12,883 INFO L231 Difference]: Finished difference. Result has 460 places, 580 transitions, 18462 flow [2022-12-13 20:38:12,883 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=18167, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=578, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=491, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=18462, PETRI_PLACES=460, PETRI_TRANSITIONS=580} [2022-12-13 20:38:12,883 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 422 predicate places. [2022-12-13 20:38:12,883 INFO L495 AbstractCegarLoop]: Abstraction has has 460 places, 580 transitions, 18462 flow [2022-12-13 20:38:12,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 136.54545454545453) internal successors, (1502), 11 states have internal predecessors, (1502), 0 states have call successors, (0), 0 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 20:38:12,884 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:38:12,884 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:12,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-12-13 20:38:12,884 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:38:12,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:12,884 INFO L85 PathProgramCache]: Analyzing trace with hash 317272194, now seen corresponding path program 4 times [2022-12-13 20:38:12,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:12,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458125237] [2022-12-13 20:38:12,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:12,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:13,483 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 20:38:13,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:38:13,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458125237] [2022-12-13 20:38:13,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458125237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:13,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:13,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:38:13,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153795131] [2022-12-13 20:38:13,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:13,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:38:13,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:38:13,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:38:13,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:38:14,306 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 297 [2022-12-13 20:38:14,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 580 transitions, 18462 flow. Second operand has 13 states, 13 states have (on average 126.38461538461539) internal successors, (1643), 13 states have internal predecessors, (1643), 0 states have call successors, (0), 0 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 20:38:14,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:38:14,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 297 [2022-12-13 20:38:14,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:38:15,466 INFO L130 PetriNetUnfolder]: 317/1707 cut-off events. [2022-12-13 20:38:15,466 INFO L131 PetriNetUnfolder]: For 109477/109477 co-relation queries the response was YES. [2022-12-13 20:38:15,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21340 conditions, 1707 events. 317/1707 cut-off events. For 109477/109477 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 18365 event pairs, 108 based on Foata normal form. 2/1709 useless extension candidates. Maximal degree in co-relation 21195. Up to 1418 conditions per place. [2022-12-13 20:38:15,482 INFO L137 encePairwiseOnDemand]: 286/297 looper letters, 551 selfloop transitions, 38 changer transitions 2/593 dead transitions. [2022-12-13 20:38:15,482 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 593 transitions, 20009 flow [2022-12-13 20:38:15,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 20:38:15,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 20:38:15,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1674 transitions. [2022-12-13 20:38:15,483 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43356643356643354 [2022-12-13 20:38:15,484 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1674 transitions. [2022-12-13 20:38:15,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1674 transitions. [2022-12-13 20:38:15,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:38:15,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1674 transitions. [2022-12-13 20:38:15,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 128.76923076923077) internal successors, (1674), 13 states have internal predecessors, (1674), 0 states have call successors, (0), 0 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 20:38:15,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:38:15,486 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:38:15,486 INFO L175 Difference]: Start difference. First operand has 460 places, 580 transitions, 18462 flow. Second operand 13 states and 1674 transitions. [2022-12-13 20:38:15,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 593 transitions, 20009 flow [2022-12-13 20:38:15,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 593 transitions, 19930 flow, removed 6 selfloop flow, removed 5 redundant places. [2022-12-13 20:38:15,999 INFO L231 Difference]: Finished difference. Result has 467 places, 580 transitions, 18455 flow [2022-12-13 20:38:15,999 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=18269, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=578, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=18455, PETRI_PLACES=467, PETRI_TRANSITIONS=580} [2022-12-13 20:38:15,999 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 429 predicate places. [2022-12-13 20:38:15,999 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 580 transitions, 18455 flow [2022-12-13 20:38:15,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.38461538461539) internal successors, (1643), 13 states have internal predecessors, (1643), 0 states have call successors, (0), 0 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 20:38:15,999 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:38:15,999 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:16,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-12-13 20:38:16,000 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:38:16,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:16,000 INFO L85 PathProgramCache]: Analyzing trace with hash -2003160795, now seen corresponding path program 9 times [2022-12-13 20:38:16,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:16,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886849404] [2022-12-13 20:38:16,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:16,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:16,673 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 20:38:16,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:38:16,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886849404] [2022-12-13 20:38:16,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886849404] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:16,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:16,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-13 20:38:16,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737587390] [2022-12-13 20:38:16,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:16,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 20:38:16,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:38:16,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 20:38:16,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-12-13 20:38:17,434 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 297 [2022-12-13 20:38:17,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 580 transitions, 18455 flow. Second operand has 16 states, 16 states have (on average 126.125) internal successors, (2018), 16 states have internal predecessors, (2018), 0 states have call successors, (0), 0 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 20:38:17,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:38:17,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 297 [2022-12-13 20:38:17,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:38:18,984 INFO L130 PetriNetUnfolder]: 317/1701 cut-off events. [2022-12-13 20:38:18,985 INFO L131 PetriNetUnfolder]: For 107854/107854 co-relation queries the response was YES. [2022-12-13 20:38:18,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21272 conditions, 1701 events. 317/1701 cut-off events. For 107854/107854 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 18308 event pairs, 72 based on Foata normal form. 6/1707 useless extension candidates. Maximal degree in co-relation 21127. Up to 663 conditions per place. [2022-12-13 20:38:19,004 INFO L137 encePairwiseOnDemand]: 283/297 looper letters, 369 selfloop transitions, 147 changer transitions 85/603 dead transitions. [2022-12-13 20:38:19,004 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 603 transitions, 20255 flow [2022-12-13 20:38:19,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 20:38:19,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 20:38:19,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1947 transitions. [2022-12-13 20:38:19,006 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43703703703703706 [2022-12-13 20:38:19,006 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1947 transitions. [2022-12-13 20:38:19,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1947 transitions. [2022-12-13 20:38:19,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:38:19,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1947 transitions. [2022-12-13 20:38:19,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 129.8) internal successors, (1947), 15 states have internal predecessors, (1947), 0 states have call successors, (0), 0 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 20:38:19,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 297.0) internal successors, (4752), 16 states have internal predecessors, (4752), 0 states have call successors, (0), 0 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 20:38:19,010 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 297.0) internal successors, (4752), 16 states have internal predecessors, (4752), 0 states have call successors, (0), 0 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 20:38:19,010 INFO L175 Difference]: Start difference. First operand has 467 places, 580 transitions, 18455 flow. Second operand 15 states and 1947 transitions. [2022-12-13 20:38:19,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 603 transitions, 20255 flow [2022-12-13 20:38:19,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 603 transitions, 20218 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-12-13 20:38:19,528 INFO L231 Difference]: Finished difference. Result has 476 places, 506 transitions, 16282 flow [2022-12-13 20:38:19,529 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=18418, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=16282, PETRI_PLACES=476, PETRI_TRANSITIONS=506} [2022-12-13 20:38:19,529 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 438 predicate places. [2022-12-13 20:38:19,529 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 506 transitions, 16282 flow [2022-12-13 20:38:19,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 126.125) internal successors, (2018), 16 states have internal predecessors, (2018), 0 states have call successors, (0), 0 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 20:38:19,529 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:38:19,529 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:19,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-12-13 20:38:19,529 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:38:19,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:19,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1350735424, now seen corresponding path program 5 times [2022-12-13 20:38:19,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:19,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995934903] [2022-12-13 20:38:19,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:19,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:20,083 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 20:38:20,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:38:20,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995934903] [2022-12-13 20:38:20,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995934903] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:20,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:20,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:38:20,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5091593] [2022-12-13 20:38:20,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:20,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:38:20,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:38:20,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:38:20,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:38:20,706 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 297 [2022-12-13 20:38:20,707 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 506 transitions, 16282 flow. Second operand has 14 states, 14 states have (on average 126.28571428571429) internal successors, (1768), 14 states have internal predecessors, (1768), 0 states have call successors, (0), 0 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 20:38:20,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:38:20,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 297 [2022-12-13 20:38:20,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:38:22,139 INFO L130 PetriNetUnfolder]: 275/1475 cut-off events. [2022-12-13 20:38:22,139 INFO L131 PetriNetUnfolder]: For 98255/98255 co-relation queries the response was YES. [2022-12-13 20:38:22,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18807 conditions, 1475 events. 275/1475 cut-off events. For 98255/98255 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 15336 event pairs, 53 based on Foata normal form. 2/1477 useless extension candidates. Maximal degree in co-relation 18660. Up to 763 conditions per place. [2022-12-13 20:38:22,155 INFO L137 encePairwiseOnDemand]: 284/297 looper letters, 407 selfloop transitions, 119 changer transitions 3/531 dead transitions. [2022-12-13 20:38:22,155 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 531 transitions, 17992 flow [2022-12-13 20:38:22,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:38:22,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 20:38:22,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2196 transitions. [2022-12-13 20:38:22,157 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43493761140819964 [2022-12-13 20:38:22,157 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2196 transitions. [2022-12-13 20:38:22,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2196 transitions. [2022-12-13 20:38:22,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:38:22,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2196 transitions. [2022-12-13 20:38:22,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 129.1764705882353) internal successors, (2196), 17 states have internal predecessors, (2196), 0 states have call successors, (0), 0 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 20:38:22,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:38:22,161 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 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 20:38:22,161 INFO L175 Difference]: Start difference. First operand has 476 places, 506 transitions, 16282 flow. Second operand 17 states and 2196 transitions. [2022-12-13 20:38:22,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 531 transitions, 17992 flow [2022-12-13 20:38:22,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 531 transitions, 17563 flow, removed 45 selfloop flow, removed 18 redundant places. [2022-12-13 20:38:22,602 INFO L231 Difference]: Finished difference. Result has 459 places, 508 transitions, 16165 flow [2022-12-13 20:38:22,602 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=15766, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=16165, PETRI_PLACES=459, PETRI_TRANSITIONS=508} [2022-12-13 20:38:22,603 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 421 predicate places. [2022-12-13 20:38:22,603 INFO L495 AbstractCegarLoop]: Abstraction has has 459 places, 508 transitions, 16165 flow [2022-12-13 20:38:22,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 126.28571428571429) internal successors, (1768), 14 states have internal predecessors, (1768), 0 states have call successors, (0), 0 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 20:38:22,603 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:38:22,603 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:22,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-12-13 20:38:22,603 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:38:22,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:22,603 INFO L85 PathProgramCache]: Analyzing trace with hash -539216707, now seen corresponding path program 10 times [2022-12-13 20:38:22,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:22,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922879061] [2022-12-13 20:38:22,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:22,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:23,205 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 20:38:23,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:38:23,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922879061] [2022-12-13 20:38:23,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922879061] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:23,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:23,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:38:23,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325144288] [2022-12-13 20:38:23,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:23,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:38:23,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:38:23,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:38:23,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:38:24,045 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 297 [2022-12-13 20:38:24,046 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 508 transitions, 16165 flow. Second operand has 13 states, 13 states have (on average 128.3846153846154) internal successors, (1669), 13 states have internal predecessors, (1669), 0 states have call successors, (0), 0 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 20:38:24,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:38:24,046 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 297 [2022-12-13 20:38:24,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:38:25,195 INFO L130 PetriNetUnfolder]: 275/1473 cut-off events. [2022-12-13 20:38:25,195 INFO L131 PetriNetUnfolder]: For 94578/94578 co-relation queries the response was YES. [2022-12-13 20:38:25,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18687 conditions, 1473 events. 275/1473 cut-off events. For 94578/94578 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 15326 event pairs, 98 based on Foata normal form. 2/1475 useless extension candidates. Maximal degree in co-relation 18547. Up to 1210 conditions per place. [2022-12-13 20:38:25,209 INFO L137 encePairwiseOnDemand]: 286/297 looper letters, 449 selfloop transitions, 56 changer transitions 13/520 dead transitions. [2022-12-13 20:38:25,209 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 520 transitions, 17559 flow [2022-12-13 20:38:25,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:38:25,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 20:38:25,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2089 transitions. [2022-12-13 20:38:25,211 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4396043771043771 [2022-12-13 20:38:25,211 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2089 transitions. [2022-12-13 20:38:25,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2089 transitions. [2022-12-13 20:38:25,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:38:25,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2089 transitions. [2022-12-13 20:38:25,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 130.5625) internal successors, (2089), 16 states have internal predecessors, (2089), 0 states have call successors, (0), 0 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 20:38:25,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:38:25,214 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 297.0) internal successors, (5049), 17 states have internal predecessors, (5049), 0 states have call successors, (0), 0 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 20:38:25,214 INFO L175 Difference]: Start difference. First operand has 459 places, 508 transitions, 16165 flow. Second operand 16 states and 2089 transitions. [2022-12-13 20:38:25,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 520 transitions, 17559 flow [2022-12-13 20:38:25,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 520 transitions, 17410 flow, removed 21 selfloop flow, removed 7 redundant places. [2022-12-13 20:38:25,635 INFO L231 Difference]: Finished difference. Result has 467 places, 499 transitions, 15917 flow [2022-12-13 20:38:25,635 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=15976, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=507, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=15917, PETRI_PLACES=467, PETRI_TRANSITIONS=499} [2022-12-13 20:38:25,635 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 429 predicate places. [2022-12-13 20:38:25,635 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 499 transitions, 15917 flow [2022-12-13 20:38:25,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.3846153846154) internal successors, (1669), 13 states have internal predecessors, (1669), 0 states have call successors, (0), 0 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 20:38:25,636 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:38:25,636 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:25,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-12-13 20:38:25,636 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:38:25,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:25,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1295204699, now seen corresponding path program 11 times [2022-12-13 20:38:25,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:25,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167639229] [2022-12-13 20:38:25,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:25,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:26,195 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 20:38:26,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:38:26,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167639229] [2022-12-13 20:38:26,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167639229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:26,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:26,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:38:26,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877376178] [2022-12-13 20:38:26,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:26,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:38:26,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:38:26,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:38:26,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:38:27,058 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 297 [2022-12-13 20:38:27,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 499 transitions, 15917 flow. Second operand has 14 states, 14 states have (on average 129.28571428571428) internal successors, (1810), 14 states have internal predecessors, (1810), 0 states have call successors, (0), 0 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 20:38:27,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:38:27,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 297 [2022-12-13 20:38:27,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:38:28,273 INFO L130 PetriNetUnfolder]: 269/1439 cut-off events. [2022-12-13 20:38:28,273 INFO L131 PetriNetUnfolder]: For 91347/91347 co-relation queries the response was YES. [2022-12-13 20:38:28,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18106 conditions, 1439 events. 269/1439 cut-off events. For 91347/91347 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 14885 event pairs, 62 based on Foata normal form. 3/1442 useless extension candidates. Maximal degree in co-relation 17966. Up to 646 conditions per place. [2022-12-13 20:38:28,286 INFO L137 encePairwiseOnDemand]: 286/297 looper letters, 356 selfloop transitions, 97 changer transitions 59/514 dead transitions. [2022-12-13 20:38:28,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 514 transitions, 17271 flow [2022-12-13 20:38:28,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 20:38:28,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 20:38:28,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1724 transitions. [2022-12-13 20:38:28,288 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4465164465164465 [2022-12-13 20:38:28,288 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1724 transitions. [2022-12-13 20:38:28,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1724 transitions. [2022-12-13 20:38:28,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:38:28,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1724 transitions. [2022-12-13 20:38:28,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 132.6153846153846) internal successors, (1724), 13 states have internal predecessors, (1724), 0 states have call successors, (0), 0 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 20:38:28,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:38:28,290 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:38:28,291 INFO L175 Difference]: Start difference. First operand has 467 places, 499 transitions, 15917 flow. Second operand 13 states and 1724 transitions. [2022-12-13 20:38:28,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 514 transitions, 17271 flow [2022-12-13 20:38:28,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 514 transitions, 17094 flow, removed 6 selfloop flow, removed 18 redundant places. [2022-12-13 20:38:28,713 INFO L231 Difference]: Finished difference. Result has 456 places, 447 transitions, 14321 flow [2022-12-13 20:38:28,714 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=15652, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=14321, PETRI_PLACES=456, PETRI_TRANSITIONS=447} [2022-12-13 20:38:28,714 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 418 predicate places. [2022-12-13 20:38:28,714 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 447 transitions, 14321 flow [2022-12-13 20:38:28,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 129.28571428571428) internal successors, (1810), 14 states have internal predecessors, (1810), 0 states have call successors, (0), 0 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 20:38:28,714 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:38:28,714 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:28,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-12-13 20:38:28,714 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:38:28,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:28,715 INFO L85 PathProgramCache]: Analyzing trace with hash 2002851045, now seen corresponding path program 12 times [2022-12-13 20:38:28,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:28,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923017225] [2022-12-13 20:38:28,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:28,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:29,333 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 20:38:29,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:38:29,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923017225] [2022-12-13 20:38:29,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923017225] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:29,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:29,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:38:29,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743973304] [2022-12-13 20:38:29,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:29,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:38:29,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:38:29,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:38:29,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:38:30,067 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 297 [2022-12-13 20:38:30,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 447 transitions, 14321 flow. Second operand has 14 states, 14 states have (on average 129.28571428571428) internal successors, (1810), 14 states have internal predecessors, (1810), 0 states have call successors, (0), 0 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 20:38:30,068 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:38:30,068 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 297 [2022-12-13 20:38:30,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:38:31,168 INFO L130 PetriNetUnfolder]: 242/1286 cut-off events. [2022-12-13 20:38:31,168 INFO L131 PetriNetUnfolder]: For 85463/85463 co-relation queries the response was YES. [2022-12-13 20:38:31,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16455 conditions, 1286 events. 242/1286 cut-off events. For 85463/85463 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 12945 event pairs, 49 based on Foata normal form. 4/1290 useless extension candidates. Maximal degree in co-relation 16320. Up to 516 conditions per place. [2022-12-13 20:38:31,180 INFO L137 encePairwiseOnDemand]: 286/297 looper letters, 354 selfloop transitions, 108 changer transitions 2/466 dead transitions. [2022-12-13 20:38:31,180 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 466 transitions, 15707 flow [2022-12-13 20:38:31,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:38:31,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 20:38:31,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1856 transitions. [2022-12-13 20:38:31,182 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44636844636844636 [2022-12-13 20:38:31,182 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1856 transitions. [2022-12-13 20:38:31,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1856 transitions. [2022-12-13 20:38:31,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:38:31,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1856 transitions. [2022-12-13 20:38:31,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 132.57142857142858) internal successors, (1856), 14 states have internal predecessors, (1856), 0 states have call successors, (0), 0 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 20:38:31,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 297.0) internal successors, (4455), 15 states have internal predecessors, (4455), 0 states have call successors, (0), 0 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 20:38:31,185 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 297.0) internal successors, (4455), 15 states have internal predecessors, (4455), 0 states have call successors, (0), 0 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 20:38:31,185 INFO L175 Difference]: Start difference. First operand has 456 places, 447 transitions, 14321 flow. Second operand 14 states and 1856 transitions. [2022-12-13 20:38:31,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 466 transitions, 15707 flow [2022-12-13 20:38:31,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 466 transitions, 15283 flow, removed 47 selfloop flow, removed 18 redundant places. [2022-12-13 20:38:31,542 INFO L231 Difference]: Finished difference. Result has 439 places, 445 transitions, 14055 flow [2022-12-13 20:38:31,542 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=13816, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=14055, PETRI_PLACES=439, PETRI_TRANSITIONS=445} [2022-12-13 20:38:31,542 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 401 predicate places. [2022-12-13 20:38:31,543 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 445 transitions, 14055 flow [2022-12-13 20:38:31,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 129.28571428571428) internal successors, (1810), 14 states have internal predecessors, (1810), 0 states have call successors, (0), 0 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 20:38:31,543 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:38:31,543 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:31,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-12-13 20:38:31,543 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:38:31,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:31,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1607263106, now seen corresponding path program 6 times [2022-12-13 20:38:31,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:31,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632755587] [2022-12-13 20:38:31,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:31,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:31,831 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 20:38:31,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:38:31,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632755587] [2022-12-13 20:38:31,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632755587] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:31,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:31,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:38:31,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548760902] [2022-12-13 20:38:31,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:31,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:38:31,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:38:31,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:38:31,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:38:31,861 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 297 [2022-12-13 20:38:31,861 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 445 transitions, 14055 flow. Second operand has 6 states, 6 states have (on average 147.83333333333334) internal successors, (887), 6 states have internal predecessors, (887), 0 states have call successors, (0), 0 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 20:38:31,861 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:38:31,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 297 [2022-12-13 20:38:31,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:38:32,045 INFO L130 PetriNetUnfolder]: 50/292 cut-off events. [2022-12-13 20:38:32,045 INFO L131 PetriNetUnfolder]: For 17599/17599 co-relation queries the response was YES. [2022-12-13 20:38:32,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3421 conditions, 292 events. 50/292 cut-off events. For 17599/17599 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1867 event pairs, 7 based on Foata normal form. 19/311 useless extension candidates. Maximal degree in co-relation 3290. Up to 135 conditions per place. [2022-12-13 20:38:32,047 INFO L137 encePairwiseOnDemand]: 292/297 looper letters, 80 selfloop transitions, 14 changer transitions 13/114 dead transitions. [2022-12-13 20:38:32,047 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 114 transitions, 2861 flow [2022-12-13 20:38:32,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:38:32,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:38:32,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 893 transitions. [2022-12-13 20:38:32,049 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5011223344556678 [2022-12-13 20:38:32,049 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 893 transitions. [2022-12-13 20:38:32,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 893 transitions. [2022-12-13 20:38:32,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:38:32,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 893 transitions. [2022-12-13 20:38:32,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 0 states have call successors, (0), 0 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 20:38:32,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 0 states have call successors, (0), 0 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 20:38:32,051 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 0 states have call successors, (0), 0 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 20:38:32,051 INFO L175 Difference]: Start difference. First operand has 439 places, 445 transitions, 14055 flow. Second operand 6 states and 893 transitions. [2022-12-13 20:38:32,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 114 transitions, 2861 flow [2022-12-13 20:38:32,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 114 transitions, 2120 flow, removed 131 selfloop flow, removed 75 redundant places. [2022-12-13 20:38:32,095 INFO L231 Difference]: Finished difference. Result has 245 places, 100 transitions, 1725 flow [2022-12-13 20:38:32,095 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=1857, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1725, PETRI_PLACES=245, PETRI_TRANSITIONS=100} [2022-12-13 20:38:32,096 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 207 predicate places. [2022-12-13 20:38:32,096 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 100 transitions, 1725 flow [2022-12-13 20:38:32,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 147.83333333333334) internal successors, (887), 6 states have internal predecessors, (887), 0 states have call successors, (0), 0 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 20:38:32,096 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:38:32,096 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:32,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-12-13 20:38:32,096 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:38:32,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:32,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1076197777, now seen corresponding path program 13 times [2022-12-13 20:38:32,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:32,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440324714] [2022-12-13 20:38:32,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:32,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:32,798 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 20:38:32,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:38:32,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440324714] [2022-12-13 20:38:32,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440324714] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:32,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:32,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-13 20:38:32,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783072781] [2022-12-13 20:38:32,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:32,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 20:38:32,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:38:32,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 20:38:32,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-12-13 20:38:33,746 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 297 [2022-12-13 20:38:33,747 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 100 transitions, 1725 flow. Second operand has 16 states, 16 states have (on average 126.125) internal successors, (2018), 16 states have internal predecessors, (2018), 0 states have call successors, (0), 0 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 20:38:33,747 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:38:33,747 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 297 [2022-12-13 20:38:33,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:38:34,374 INFO L130 PetriNetUnfolder]: 47/273 cut-off events. [2022-12-13 20:38:34,374 INFO L131 PetriNetUnfolder]: For 6100/6100 co-relation queries the response was YES. [2022-12-13 20:38:34,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2445 conditions, 273 events. 47/273 cut-off events. For 6100/6100 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1712 event pairs, 14 based on Foata normal form. 4/277 useless extension candidates. Maximal degree in co-relation 2353. Up to 141 conditions per place. [2022-12-13 20:38:34,376 INFO L137 encePairwiseOnDemand]: 284/297 looper letters, 69 selfloop transitions, 39 changer transitions 1/111 dead transitions. [2022-12-13 20:38:34,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 111 transitions, 2161 flow [2022-12-13 20:38:34,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 20:38:34,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 20:38:34,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1667 transitions. [2022-12-13 20:38:34,378 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4317534317534317 [2022-12-13 20:38:34,378 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1667 transitions. [2022-12-13 20:38:34,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1667 transitions. [2022-12-13 20:38:34,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:38:34,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1667 transitions. [2022-12-13 20:38:34,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 128.23076923076923) internal successors, (1667), 13 states have internal predecessors, (1667), 0 states have call successors, (0), 0 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 20:38:34,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:38:34,381 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 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 20:38:34,381 INFO L175 Difference]: Start difference. First operand has 245 places, 100 transitions, 1725 flow. Second operand 13 states and 1667 transitions. [2022-12-13 20:38:34,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 111 transitions, 2161 flow [2022-12-13 20:38:34,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 111 transitions, 1895 flow, removed 59 selfloop flow, removed 19 redundant places. [2022-12-13 20:38:34,400 INFO L231 Difference]: Finished difference. Result has 224 places, 102 transitions, 1671 flow [2022-12-13 20:38:34,400 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=1479, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1671, PETRI_PLACES=224, PETRI_TRANSITIONS=102} [2022-12-13 20:38:34,400 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 186 predicate places. [2022-12-13 20:38:34,400 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 102 transitions, 1671 flow [2022-12-13 20:38:34,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 126.125) internal successors, (2018), 16 states have internal predecessors, (2018), 0 states have call successors, (0), 0 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 20:38:34,401 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:38:34,401 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:34,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-12-13 20:38:34,401 INFO L420 AbstractCegarLoop]: === Iteration 116 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:38:34,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:34,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1247619108, now seen corresponding path program 7 times [2022-12-13 20:38:34,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:34,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526621439] [2022-12-13 20:38:34,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:34,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:35,141 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 20:38:35,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:38:35,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526621439] [2022-12-13 20:38:35,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526621439] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:35,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:35,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:38:35,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568389284] [2022-12-13 20:38:35,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:35,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:38:35,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:38:35,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:38:35,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:38:36,021 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 297 [2022-12-13 20:38:36,022 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 102 transitions, 1671 flow. Second operand has 14 states, 14 states have (on average 125.28571428571429) internal successors, (1754), 14 states have internal predecessors, (1754), 0 states have call successors, (0), 0 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 20:38:36,022 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:38:36,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 297 [2022-12-13 20:38:36,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:38:36,472 INFO L130 PetriNetUnfolder]: 47/271 cut-off events. [2022-12-13 20:38:36,472 INFO L131 PetriNetUnfolder]: For 4776/4776 co-relation queries the response was YES. [2022-12-13 20:38:36,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2186 conditions, 271 events. 47/271 cut-off events. For 4776/4776 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1696 event pairs, 22 based on Foata normal form. 2/273 useless extension candidates. Maximal degree in co-relation 2100. Up to 200 conditions per place. [2022-12-13 20:38:36,474 INFO L137 encePairwiseOnDemand]: 286/297 looper letters, 87 selfloop transitions, 18 changer transitions 2/109 dead transitions. [2022-12-13 20:38:36,474 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 109 transitions, 1970 flow [2022-12-13 20:38:36,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 20:38:36,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 20:38:36,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1528 transitions. [2022-12-13 20:38:36,475 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4287317620650954 [2022-12-13 20:38:36,475 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1528 transitions. [2022-12-13 20:38:36,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1528 transitions. [2022-12-13 20:38:36,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:38:36,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1528 transitions. [2022-12-13 20:38:36,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 127.33333333333333) internal successors, (1528), 12 states have internal predecessors, (1528), 0 states have call successors, (0), 0 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 20:38:36,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:38:36,478 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:38:36,478 INFO L175 Difference]: Start difference. First operand has 224 places, 102 transitions, 1671 flow. Second operand 12 states and 1528 transitions. [2022-12-13 20:38:36,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 109 transitions, 1970 flow [2022-12-13 20:38:36,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 109 transitions, 1902 flow, removed 5 selfloop flow, removed 11 redundant places. [2022-12-13 20:38:36,493 INFO L231 Difference]: Finished difference. Result has 219 places, 101 transitions, 1600 flow [2022-12-13 20:38:36,493 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=1539, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1600, PETRI_PLACES=219, PETRI_TRANSITIONS=101} [2022-12-13 20:38:36,493 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 181 predicate places. [2022-12-13 20:38:36,493 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 101 transitions, 1600 flow [2022-12-13 20:38:36,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 125.28571428571429) internal successors, (1754), 14 states have internal predecessors, (1754), 0 states have call successors, (0), 0 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 20:38:36,494 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:38:36,494 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:36,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-12-13 20:38:36,494 INFO L420 AbstractCegarLoop]: === Iteration 117 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:38:36,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:36,494 INFO L85 PathProgramCache]: Analyzing trace with hash 660629103, now seen corresponding path program 14 times [2022-12-13 20:38:36,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:36,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137282662] [2022-12-13 20:38:36,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:36,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:37,066 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 20:38:37,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:38:37,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137282662] [2022-12-13 20:38:37,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137282662] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:37,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:37,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:38:37,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809798233] [2022-12-13 20:38:37,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:37,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:38:37,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:38:37,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:38:37,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:38:37,717 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 297 [2022-12-13 20:38:37,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 101 transitions, 1600 flow. Second operand has 14 states, 14 states have (on average 128.28571428571428) internal successors, (1796), 14 states have internal predecessors, (1796), 0 states have call successors, (0), 0 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 20:38:37,718 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:38:37,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 297 [2022-12-13 20:38:37,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:38:38,285 INFO L130 PetriNetUnfolder]: 47/269 cut-off events. [2022-12-13 20:38:38,285 INFO L131 PetriNetUnfolder]: For 4360/4360 co-relation queries the response was YES. [2022-12-13 20:38:38,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2147 conditions, 269 events. 47/269 cut-off events. For 4360/4360 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1689 event pairs, 12 based on Foata normal form. 2/271 useless extension candidates. Maximal degree in co-relation 2061. Up to 117 conditions per place. [2022-12-13 20:38:38,287 INFO L137 encePairwiseOnDemand]: 286/297 looper letters, 66 selfloop transitions, 13 changer transitions 35/116 dead transitions. [2022-12-13 20:38:38,287 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 116 transitions, 2079 flow [2022-12-13 20:38:38,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 20:38:38,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 20:38:38,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1574 transitions. [2022-12-13 20:38:38,288 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44163860830527496 [2022-12-13 20:38:38,288 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1574 transitions. [2022-12-13 20:38:38,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1574 transitions. [2022-12-13 20:38:38,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:38:38,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1574 transitions. [2022-12-13 20:38:38,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 131.16666666666666) internal successors, (1574), 12 states have internal predecessors, (1574), 0 states have call successors, (0), 0 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 20:38:38,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:38:38,291 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:38:38,291 INFO L175 Difference]: Start difference. First operand has 219 places, 101 transitions, 1600 flow. Second operand 12 states and 1574 transitions. [2022-12-13 20:38:38,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 116 transitions, 2079 flow [2022-12-13 20:38:38,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 116 transitions, 1996 flow, removed 7 selfloop flow, removed 11 redundant places. [2022-12-13 20:38:38,305 INFO L231 Difference]: Finished difference. Result has 219 places, 74 transitions, 1140 flow [2022-12-13 20:38:38,305 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=1500, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1140, PETRI_PLACES=219, PETRI_TRANSITIONS=74} [2022-12-13 20:38:38,306 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 181 predicate places. [2022-12-13 20:38:38,306 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 74 transitions, 1140 flow [2022-12-13 20:38:38,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.28571428571428) internal successors, (1796), 14 states have internal predecessors, (1796), 0 states have call successors, (0), 0 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 20:38:38,306 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:38:38,306 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:38,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-12-13 20:38:38,306 INFO L420 AbstractCegarLoop]: === Iteration 118 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:38:38,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:38,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1473673786, now seen corresponding path program 8 times [2022-12-13 20:38:38,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:38,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586524352] [2022-12-13 20:38:38,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:38,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:38,775 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 20:38:38,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:38:38,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586524352] [2022-12-13 20:38:38,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586524352] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:38,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:38,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:38:38,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752826129] [2022-12-13 20:38:38,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:38,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:38:38,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:38:38,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:38:38,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:38:39,376 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 297 [2022-12-13 20:38:39,377 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 74 transitions, 1140 flow. Second operand has 13 states, 13 states have (on average 128.3846153846154) internal successors, (1669), 13 states have internal predecessors, (1669), 0 states have call successors, (0), 0 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 20:38:39,377 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:38:39,377 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 297 [2022-12-13 20:38:39,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:38:39,676 INFO L130 PetriNetUnfolder]: 28/177 cut-off events. [2022-12-13 20:38:39,676 INFO L131 PetriNetUnfolder]: For 2717/2717 co-relation queries the response was YES. [2022-12-13 20:38:39,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1348 conditions, 177 events. 28/177 cut-off events. For 2717/2717 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 939 event pairs, 5 based on Foata normal form. 6/183 useless extension candidates. Maximal degree in co-relation 1263. Up to 56 conditions per place. [2022-12-13 20:38:39,678 INFO L137 encePairwiseOnDemand]: 287/297 looper letters, 34 selfloop transitions, 14 changer transitions 26/76 dead transitions. [2022-12-13 20:38:39,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 76 transitions, 1229 flow [2022-12-13 20:38:39,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 20:38:39,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 20:38:39,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1432 transitions. [2022-12-13 20:38:39,679 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.438322620140802 [2022-12-13 20:38:39,679 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1432 transitions. [2022-12-13 20:38:39,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1432 transitions. [2022-12-13 20:38:39,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:38:39,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1432 transitions. [2022-12-13 20:38:39,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 130.1818181818182) internal successors, (1432), 11 states have internal predecessors, (1432), 0 states have call successors, (0), 0 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 20:38:39,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 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 20:38:39,681 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 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 20:38:39,681 INFO L175 Difference]: Start difference. First operand has 219 places, 74 transitions, 1140 flow. Second operand 11 states and 1432 transitions. [2022-12-13 20:38:39,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 76 transitions, 1229 flow [2022-12-13 20:38:39,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 76 transitions, 1017 flow, removed 9 selfloop flow, removed 28 redundant places. [2022-12-13 20:38:39,690 INFO L231 Difference]: Finished difference. Result has 164 places, 44 transitions, 485 flow [2022-12-13 20:38:39,690 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=485, PETRI_PLACES=164, PETRI_TRANSITIONS=44} [2022-12-13 20:38:39,690 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 126 predicate places. [2022-12-13 20:38:39,691 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 44 transitions, 485 flow [2022-12-13 20:38:39,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.3846153846154) internal successors, (1669), 13 states have internal predecessors, (1669), 0 states have call successors, (0), 0 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 20:38:39,691 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:38:39,691 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:39,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-12-13 20:38:39,691 INFO L420 AbstractCegarLoop]: === Iteration 119 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:38:39,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:39,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2070608285, now seen corresponding path program 15 times [2022-12-13 20:38:39,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:39,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27858538] [2022-12-13 20:38:39,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:39,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:40,407 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 20:38:40,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:38:40,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27858538] [2022-12-13 20:38:40,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27858538] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:40,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:40,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-13 20:38:40,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734851931] [2022-12-13 20:38:40,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:40,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 20:38:40,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:38:40,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 20:38:40,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-12-13 20:38:41,509 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 297 [2022-12-13 20:38:41,510 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 44 transitions, 485 flow. Second operand has 16 states, 16 states have (on average 126.125) internal successors, (2018), 16 states have internal predecessors, (2018), 0 states have call successors, (0), 0 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 20:38:41,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:38:41,510 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 297 [2022-12-13 20:38:41,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:38:42,148 INFO L130 PetriNetUnfolder]: 15/97 cut-off events. [2022-12-13 20:38:42,148 INFO L131 PetriNetUnfolder]: For 1083/1083 co-relation queries the response was YES. [2022-12-13 20:38:42,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 97 events. 15/97 cut-off events. For 1083/1083 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 357 event pairs, 5 based on Foata normal form. 2/99 useless extension candidates. Maximal degree in co-relation 610. Up to 33 conditions per place. [2022-12-13 20:38:42,149 INFO L137 encePairwiseOnDemand]: 286/297 looper letters, 17 selfloop transitions, 4 changer transitions 27/50 dead transitions. [2022-12-13 20:38:42,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 50 transitions, 636 flow [2022-12-13 20:38:42,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 20:38:42,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 20:38:42,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1535 transitions. [2022-12-13 20:38:42,150 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43069584736251404 [2022-12-13 20:38:42,151 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1535 transitions. [2022-12-13 20:38:42,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1535 transitions. [2022-12-13 20:38:42,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:38:42,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1535 transitions. [2022-12-13 20:38:42,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 127.91666666666667) internal successors, (1535), 12 states have internal predecessors, (1535), 0 states have call successors, (0), 0 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 20:38:42,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:38:42,153 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 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 20:38:42,153 INFO L175 Difference]: Start difference. First operand has 164 places, 44 transitions, 485 flow. Second operand 12 states and 1535 transitions. [2022-12-13 20:38:42,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 50 transitions, 636 flow [2022-12-13 20:38:42,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 50 transitions, 474 flow, removed 28 selfloop flow, removed 31 redundant places. [2022-12-13 20:38:42,157 INFO L231 Difference]: Finished difference. Result has 132 places, 23 transitions, 147 flow [2022-12-13 20:38:42,157 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=147, PETRI_PLACES=132, PETRI_TRANSITIONS=23} [2022-12-13 20:38:42,157 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 94 predicate places. [2022-12-13 20:38:42,157 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 23 transitions, 147 flow [2022-12-13 20:38:42,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 126.125) internal successors, (2018), 16 states have internal predecessors, (2018), 0 states have call successors, (0), 0 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 20:38:42,157 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:38:42,157 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:42,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-12-13 20:38:42,157 INFO L420 AbstractCegarLoop]: === Iteration 120 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-13 20:38:42,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:42,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1247619107, now seen corresponding path program 16 times [2022-12-13 20:38:42,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:42,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428832941] [2022-12-13 20:38:42,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:42,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:42,952 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 20:38:42,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:38:42,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428832941] [2022-12-13 20:38:42,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428832941] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:42,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:42,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:38:42,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893488527] [2022-12-13 20:38:42,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:42,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:38:42,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:38:42,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:38:42,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:38:43,709 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 297 [2022-12-13 20:38:43,710 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 23 transitions, 147 flow. Second operand has 14 states, 14 states have (on average 127.28571428571429) internal successors, (1782), 14 states have internal predecessors, (1782), 0 states have call successors, (0), 0 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 20:38:43,710 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:38:43,710 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 297 [2022-12-13 20:38:43,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:38:43,989 INFO L130 PetriNetUnfolder]: 6/40 cut-off events. [2022-12-13 20:38:43,990 INFO L131 PetriNetUnfolder]: For 199/199 co-relation queries the response was YES. [2022-12-13 20:38:43,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 40 events. 6/40 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 2/42 useless extension candidates. Maximal degree in co-relation 192. Up to 15 conditions per place. [2022-12-13 20:38:43,990 INFO L137 encePairwiseOnDemand]: 287/297 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions. [2022-12-13 20:38:43,990 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 25 transitions, 216 flow [2022-12-13 20:38:43,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 20:38:43,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 20:38:43,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1408 transitions. [2022-12-13 20:38:43,991 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43097643097643096 [2022-12-13 20:38:43,991 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1408 transitions. [2022-12-13 20:38:43,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1408 transitions. [2022-12-13 20:38:43,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:38:43,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1408 transitions. [2022-12-13 20:38:43,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 128.0) internal successors, (1408), 11 states have internal predecessors, (1408), 0 states have call successors, (0), 0 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 20:38:43,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 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 20:38:43,994 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 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 20:38:43,994 INFO L175 Difference]: Start difference. First operand has 132 places, 23 transitions, 147 flow. Second operand 11 states and 1408 transitions. [2022-12-13 20:38:43,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 25 transitions, 216 flow [2022-12-13 20:38:43,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 25 transitions, 154 flow, removed 21 selfloop flow, removed 16 redundant places. [2022-12-13 20:38:43,994 INFO L231 Difference]: Finished difference. Result has 91 places, 0 transitions, 0 flow [2022-12-13 20:38:43,995 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=91, PETRI_TRANSITIONS=0} [2022-12-13 20:38:43,995 INFO L288 CegarLoopForPetriNet]: 38 programPoint places, 53 predicate places. [2022-12-13 20:38:43,995 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 0 transitions, 0 flow [2022-12-13 20:38:43,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 127.28571428571429) internal successors, (1782), 14 states have internal predecessors, (1782), 0 states have call successors, (0), 0 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 20:38:43,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2022-12-13 20:38:43,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2022-12-13 20:38:43,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-12-13 20:38:43,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-12-13 20:38:43,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-12-13 20:38:43,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-12-13 20:38:43,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-12-13 20:38:43,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-12-13 20:38:43,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-12-13 20:38:43,998 INFO L445 BasicCegarLoop]: Path program histogram: [16, 13, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:44,001 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 20:38:44,001 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:38:44,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:38:44 BasicIcfg [2022-12-13 20:38:44,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:38:44,003 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:38:44,003 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:38:44,004 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:38:44,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:28:48" (3/4) ... [2022-12-13 20:38:44,005 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 20:38:44,009 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2022-12-13 20:38:44,012 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2022-12-13 20:38:44,012 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-13 20:38:44,012 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 20:38:44,012 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 20:38:44,036 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5c77bb-7575-42b4-9207-c7bed45dbf65/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 20:38:44,036 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:38:44,036 INFO L158 Benchmark]: Toolchain (without parser) took 596825.18ms. Allocated memory was 127.9MB in the beginning and 4.7GB in the end (delta: 4.6GB). Free memory was 87.0MB in the beginning and 3.5GB in the end (delta: -3.5GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-12-13 20:38:44,036 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 127.9MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:38:44,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 717.91ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 86.7MB in the beginning and 103.2MB in the end (delta: -16.5MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. [2022-12-13 20:38:44,036 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.03ms. Allocated memory is still 155.2MB. Free memory was 103.2MB in the beginning and 99.8MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:38:44,037 INFO L158 Benchmark]: Boogie Preprocessor took 33.67ms. Allocated memory is still 155.2MB. Free memory was 99.8MB in the beginning and 96.9MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:38:44,037 INFO L158 Benchmark]: RCFGBuilder took 482.53ms. Allocated memory is still 155.2MB. Free memory was 96.9MB in the beginning and 69.7MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 20:38:44,037 INFO L158 Benchmark]: TraceAbstraction took 595512.07ms. Allocated memory was 155.2MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 68.9MB in the beginning and 3.5GB in the end (delta: -3.5GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-12-13 20:38:44,037 INFO L158 Benchmark]: Witness Printer took 32.42ms. Allocated memory is still 4.7GB. Free memory was 3.5GB in the beginning and 3.5GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:38:44,038 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 127.9MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 717.91ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 86.7MB in the beginning and 103.2MB in the end (delta: -16.5MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.03ms. Allocated memory is still 155.2MB. Free memory was 103.2MB in the beginning and 99.8MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.67ms. Allocated memory is still 155.2MB. Free memory was 99.8MB in the beginning and 96.9MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 482.53ms. Allocated memory is still 155.2MB. Free memory was 96.9MB in the beginning and 69.7MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 595512.07ms. Allocated memory was 155.2MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 68.9MB in the beginning and 3.5GB in the end (delta: -3.5GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 32.42ms. Allocated memory is still 4.7GB. Free memory was 3.5GB in the beginning and 3.5GB 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: 5.1s, 144 PlacesBefore, 38 PlacesAfterwards, 139 TransitionsBefore, 32 TransitionsAfterwards, 3900 CoEnabledTransitionPairs, 7 FixpointIterations, 44 TrivialSequentialCompositions, 69 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 124 TotalNumberOfCompositions, 10376 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3895, independent: 3572, independent conditional: 0, independent unconditional: 3572, dependent: 323, dependent conditional: 0, dependent unconditional: 323, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2200, independent: 2141, independent conditional: 0, independent unconditional: 2141, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3895, independent: 1431, independent conditional: 0, independent unconditional: 1431, dependent: 264, dependent conditional: 0, dependent unconditional: 264, unknown: 2200, unknown conditional: 0, unknown unconditional: 2200] , Statistics on independence cache: Total cache size (in pairs): 107, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1700]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1700]: 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, 185 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: 595.4s, OverallIterations: 120, TraceHistogramMax: 1, PathProgramHistogramMax: 16, EmptinessCheckTime: 0.0s, AutomataDifference: 535.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41197 SdHoareTripleChecker+Valid, 91.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35107 mSDsluCounter, 47019 SdHoareTripleChecker+Invalid, 78.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45579 mSDsCounter, 3662 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 152335 IncrementalHoareTripleChecker+Invalid, 155997 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3662 mSolverCounterUnsat, 1440 mSDtfsCounter, 152335 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2294 GetRequests, 82 SyntacticMatches, 8 SemanticMatches, 2204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5230 ImplicationChecksByTransitivity, 42.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46664occurred in iteration=95, InterpolantAutomatonStates: 1661, 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: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 51.9s InterpolantComputationTime, 1577 NumberOfCodeBlocks, 1577 NumberOfCodeBlocksAsserted, 120 NumberOfCheckSat, 1457 ConstructedInterpolants, 0 QuantifiedInterpolants, 25682 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 120 InterpolantComputations, 120 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 20:38:44,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac5c77bb-7575-42b4-9207-c7bed45dbf65/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