./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad87971d-c8c7-4a5b-81da-d0fc6e2faf11/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad87971d-c8c7-4a5b-81da-d0fc6e2faf11/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad87971d-c8c7-4a5b-81da-d0fc6e2faf11/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad87971d-c8c7-4a5b-81da-d0fc6e2faf11/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad87971d-c8c7-4a5b-81da-d0fc6e2faf11/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad87971d-c8c7-4a5b-81da-d0fc6e2faf11/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 02b1c265b98bd14cc97fe77543b4e06699576e2091fa3d4102d013e6b3937418 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:37:02,953 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:37:03,044 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad87971d-c8c7-4a5b-81da-d0fc6e2faf11/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:37:03,052 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:37:03,053 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:37:03,087 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:37:03,088 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:37:03,089 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:37:03,090 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:37:03,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:37:03,093 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:37:03,094 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:37:03,095 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:37:03,096 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:37:03,096 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:37:03,097 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:37:03,098 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:37:03,099 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:37:03,100 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:37:03,101 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:37:03,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:37:03,103 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:37:03,104 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:37:03,105 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:37:03,106 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:37:03,106 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:37:03,107 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:37:03,108 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:37:03,109 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:37:03,109 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:37:03,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:03,111 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:37:03,111 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:37:03,112 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:37:03,113 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:37:03,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:37:03,114 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:37:03,114 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:37:03,115 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:37:03,116 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:37:03,116 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:37:03,118 INFO L153 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_ad87971d-c8c7-4a5b-81da-d0fc6e2faf11/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad87971d-c8c7-4a5b-81da-d0fc6e2faf11/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02b1c265b98bd14cc97fe77543b4e06699576e2091fa3d4102d013e6b3937418 [2023-11-19 07:37:03,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:37:03,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:37:03,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:37:03,553 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:37:03,555 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:37:03,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad87971d-c8c7-4a5b-81da-d0fc6e2faf11/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2023-11-19 07:37:07,337 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:37:07,889 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:37:07,894 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad87971d-c8c7-4a5b-81da-d0fc6e2faf11/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2023-11-19 07:37:07,937 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad87971d-c8c7-4a5b-81da-d0fc6e2faf11/bin/uautomizer-verify-uCwYo4JHxu/data/b2d41c656/318b288f3ae34729b8567b259482fc8b/FLAGf04b2c898 [2023-11-19 07:37:07,965 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad87971d-c8c7-4a5b-81da-d0fc6e2faf11/bin/uautomizer-verify-uCwYo4JHxu/data/b2d41c656/318b288f3ae34729b8567b259482fc8b [2023-11-19 07:37:07,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:37:07,973 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:37:07,981 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:07,981 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:37:07,994 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:37:07,998 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:07" (1/1) ... [2023-11-19 07:37:07,999 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7438e8cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:07, skipping insertion in model container [2023-11-19 07:37:08,000 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:07" (1/1) ... [2023-11-19 07:37:08,093 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:37:08,285 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:37:09,091 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:09,106 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:37:09,123 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:37:09,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:09,377 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:09,377 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:09,378 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:09,388 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:37:09,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:09 WrapperNode [2023-11-19 07:37:09,389 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:09,397 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:09,397 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:37:09,397 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:37:09,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:09" (1/1) ... [2023-11-19 07:37:09,445 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:09" (1/1) ... [2023-11-19 07:37:09,505 INFO L138 Inliner]: procedures = 468, calls = 53, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 153 [2023-11-19 07:37:09,506 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:09,507 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:37:09,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:37:09,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:37:09,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:09" (1/1) ... [2023-11-19 07:37:09,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:09" (1/1) ... [2023-11-19 07:37:09,550 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:09" (1/1) ... [2023-11-19 07:37:09,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:09" (1/1) ... [2023-11-19 07:37:09,572 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:09" (1/1) ... [2023-11-19 07:37:09,575 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:09" (1/1) ... [2023-11-19 07:37:09,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:09" (1/1) ... [2023-11-19 07:37:09,587 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:09" (1/1) ... [2023-11-19 07:37:09,597 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:37:09,599 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:37:09,599 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:37:09,599 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:37:09,600 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:09" (1/1) ... [2023-11-19 07:37:09,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:09,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad87971d-c8c7-4a5b-81da-d0fc6e2faf11/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:09,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad87971d-c8c7-4a5b-81da-d0fc6e2faf11/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:09,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad87971d-c8c7-4a5b-81da-d0fc6e2faf11/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:37:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:37:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:37:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:37:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:37:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:37:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:37:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:37:09,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:37:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-19 07:37:09,707 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-19 07:37:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:37:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:37:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:37:09,710 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:37:10,122 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:37:10,128 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:37:10,478 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:37:10,532 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:37:10,534 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:37:10,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:10 BoogieIcfgContainer [2023-11-19 07:37:10,546 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:37:10,549 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:37:10,550 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:37:10,557 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:37:10,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:37:07" (1/3) ... [2023-11-19 07:37:10,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286944a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:10, skipping insertion in model container [2023-11-19 07:37:10,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:09" (2/3) ... [2023-11-19 07:37:10,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286944a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:10, skipping insertion in model container [2023-11-19 07:37:10,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:10" (3/3) ... [2023-11-19 07:37:10,567 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2023-11-19 07:37:10,579 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:37:10,593 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:37:10,593 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 07:37:10,593 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:37:10,684 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 07:37:10,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 208 places, 216 transitions, 446 flow [2023-11-19 07:37:10,867 INFO L124 PetriNetUnfolderBase]: 18/270 cut-off events. [2023-11-19 07:37:10,868 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:37:10,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 270 events. 18/270 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 499 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 153. Up to 4 conditions per place. [2023-11-19 07:37:10,875 INFO L82 GeneralOperation]: Start removeDead. Operand has 208 places, 216 transitions, 446 flow [2023-11-19 07:37:10,883 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 171 transitions, 351 flow [2023-11-19 07:37:10,887 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:37:10,900 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 170 places, 171 transitions, 351 flow [2023-11-19 07:37:10,903 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 170 places, 171 transitions, 351 flow [2023-11-19 07:37:10,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 171 transitions, 351 flow [2023-11-19 07:37:10,974 INFO L124 PetriNetUnfolderBase]: 8/171 cut-off events. [2023-11-19 07:37:10,975 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:37:10,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 171 events. 8/171 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 203 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-11-19 07:37:10,981 INFO L119 LiptonReduction]: Number of co-enabled transitions 4004 [2023-11-19 07:37:23,052 INFO L134 LiptonReduction]: Checked pairs total: 8083 [2023-11-19 07:37:23,052 INFO L136 LiptonReduction]: Total number of compositions: 202 [2023-11-19 07:37:23,080 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:37:23,087 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=LoopHeads, 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;@2d7c66c8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:37:23,087 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-19 07:37:23,091 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:37:23,092 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-19 07:37:23,092 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:37:23,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:23,093 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:37:23,093 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:23,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:23,099 INFO L85 PathProgramCache]: Analyzing trace with hash 23258885, now seen corresponding path program 1 times [2023-11-19 07:37:23,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:23,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730614060] [2023-11-19 07:37:23,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:23,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:24,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:24,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:24,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730614060] [2023-11-19 07:37:24,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730614060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:24,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:24,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:37:24,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155996932] [2023-11-19 07:37:24,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:24,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:37:24,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:24,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:37:24,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:37:24,283 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 418 [2023-11-19 07:37:24,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 55 flow. Second operand has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 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) [2023-11-19 07:37:24,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:24,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 418 [2023-11-19 07:37:24,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:24,512 INFO L124 PetriNetUnfolderBase]: 103/204 cut-off events. [2023-11-19 07:37:24,513 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-19 07:37:24,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 204 events. 103/204 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 727 event pairs, 100 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 368. Up to 195 conditions per place. [2023-11-19 07:37:24,517 INFO L140 encePairwiseOnDemand]: 411/418 looper letters, 17 selfloop transitions, 5 changer transitions 0/23 dead transitions. [2023-11-19 07:37:24,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 23 transitions, 99 flow [2023-11-19 07:37:24,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:37:24,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:37:24,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 721 transitions. [2023-11-19 07:37:24,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4312200956937799 [2023-11-19 07:37:24,544 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 721 transitions. [2023-11-19 07:37:24,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 721 transitions. [2023-11-19 07:37:24,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:24,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 721 transitions. [2023-11-19 07:37:24,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 180.25) internal successors, (721), 4 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:24,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 418.0) internal successors, (2090), 5 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:24,572 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 418.0) internal successors, (2090), 5 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:24,574 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 55 flow. Second operand 4 states and 721 transitions. [2023-11-19 07:37:24,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 23 transitions, 99 flow [2023-11-19 07:37:24,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 23 transitions, 94 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:37:24,581 INFO L231 Difference]: Finished difference. Result has 27 places, 22 transitions, 74 flow [2023-11-19 07:37:24,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=27, PETRI_TRANSITIONS=22} [2023-11-19 07:37:24,589 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -2 predicate places. [2023-11-19 07:37:24,589 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 22 transitions, 74 flow [2023-11-19 07:37:24,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 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) [2023-11-19 07:37:24,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:24,590 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:37:24,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:37:24,591 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:24,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:24,592 INFO L85 PathProgramCache]: Analyzing trace with hash 721007350, now seen corresponding path program 1 times [2023-11-19 07:37:24,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:24,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778875495] [2023-11-19 07:37:24,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:24,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:25,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:25,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:25,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778875495] [2023-11-19 07:37:25,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778875495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:25,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:25,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:37:25,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784943119] [2023-11-19 07:37:25,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:25,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:37:25,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:25,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:37:25,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:37:25,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 418 [2023-11-19 07:37:25,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 74 flow. Second operand has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:25,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:25,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 418 [2023-11-19 07:37:25,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:25,546 INFO L124 PetriNetUnfolderBase]: 135/257 cut-off events. [2023-11-19 07:37:25,546 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2023-11-19 07:37:25,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 257 events. 135/257 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1033 event pairs, 38 based on Foata normal form. 11/219 useless extension candidates. Maximal degree in co-relation 497. Up to 112 conditions per place. [2023-11-19 07:37:25,549 INFO L140 encePairwiseOnDemand]: 410/418 looper letters, 28 selfloop transitions, 10 changer transitions 4/43 dead transitions. [2023-11-19 07:37:25,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 43 transitions, 214 flow [2023-11-19 07:37:25,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:37:25,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:37:25,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 734 transitions. [2023-11-19 07:37:25,553 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43899521531100477 [2023-11-19 07:37:25,553 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 734 transitions. [2023-11-19 07:37:25,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 734 transitions. [2023-11-19 07:37:25,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:25,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 734 transitions. [2023-11-19 07:37:25,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 183.5) internal successors, (734), 4 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:25,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 418.0) internal successors, (2090), 5 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:25,563 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 418.0) internal successors, (2090), 5 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:25,563 INFO L175 Difference]: Start difference. First operand has 27 places, 22 transitions, 74 flow. Second operand 4 states and 734 transitions. [2023-11-19 07:37:25,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 43 transitions, 214 flow [2023-11-19 07:37:25,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 43 transitions, 214 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:37:25,567 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 128 flow [2023-11-19 07:37:25,567 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=128, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2023-11-19 07:37:25,568 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2023-11-19 07:37:25,569 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 128 flow [2023-11-19 07:37:25,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:25,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:25,570 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:37:25,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:37:25,570 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:25,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:25,571 INFO L85 PathProgramCache]: Analyzing trace with hash 721029670, now seen corresponding path program 2 times [2023-11-19 07:37:25,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:25,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330787658] [2023-11-19 07:37:25,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:25,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:26,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:26,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330787658] [2023-11-19 07:37:26,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330787658] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:26,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:26,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:37:26,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524608002] [2023-11-19 07:37:26,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:26,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:37:26,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:26,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:37:26,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:37:26,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 418 [2023-11-19 07:37:26,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 128 flow. Second operand has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:26,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:26,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 418 [2023-11-19 07:37:26,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:26,372 INFO L124 PetriNetUnfolderBase]: 122/234 cut-off events. [2023-11-19 07:37:26,373 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2023-11-19 07:37:26,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 234 events. 122/234 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 893 event pairs, 33 based on Foata normal form. 3/191 useless extension candidates. Maximal degree in co-relation 403. Up to 89 conditions per place. [2023-11-19 07:37:26,378 INFO L140 encePairwiseOnDemand]: 411/418 looper letters, 29 selfloop transitions, 11 changer transitions 2/43 dead transitions. [2023-11-19 07:37:26,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 43 transitions, 267 flow [2023-11-19 07:37:26,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:37:26,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:37:26,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 732 transitions. [2023-11-19 07:37:26,382 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43779904306220097 [2023-11-19 07:37:26,382 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 732 transitions. [2023-11-19 07:37:26,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 732 transitions. [2023-11-19 07:37:26,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:26,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 732 transitions. [2023-11-19 07:37:26,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:26,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 418.0) internal successors, (2090), 5 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:26,392 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 418.0) internal successors, (2090), 5 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:26,392 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 128 flow. Second operand 4 states and 732 transitions. [2023-11-19 07:37:26,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 43 transitions, 267 flow [2023-11-19 07:37:26,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 43 transitions, 258 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-19 07:37:26,399 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 166 flow [2023-11-19 07:37:26,399 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2023-11-19 07:37:26,401 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 6 predicate places. [2023-11-19 07:37:26,401 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 166 flow [2023-11-19 07:37:26,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:26,402 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:26,402 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:37:26,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:37:26,407 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:26,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:26,408 INFO L85 PathProgramCache]: Analyzing trace with hash 876243004, now seen corresponding path program 1 times [2023-11-19 07:37:26,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:26,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382424081] [2023-11-19 07:37:26,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:26,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:26,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:26,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:26,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382424081] [2023-11-19 07:37:26,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382424081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:26,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:26,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:37:26,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093402468] [2023-11-19 07:37:26,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:26,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:37:26,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:26,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:37:26,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:37:26,974 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 418 [2023-11-19 07:37:26,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 166 flow. Second operand has 5 states, 5 states have (on average 174.2) internal successors, (871), 5 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) [2023-11-19 07:37:26,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:26,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 418 [2023-11-19 07:37:26,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:27,117 INFO L124 PetriNetUnfolderBase]: 92/184 cut-off events. [2023-11-19 07:37:27,117 INFO L125 PetriNetUnfolderBase]: For 280/280 co-relation queries the response was YES. [2023-11-19 07:37:27,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 615 conditions, 184 events. 92/184 cut-off events. For 280/280 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 634 event pairs, 31 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 323. Up to 80 conditions per place. [2023-11-19 07:37:27,119 INFO L140 encePairwiseOnDemand]: 411/418 looper letters, 27 selfloop transitions, 11 changer transitions 2/41 dead transitions. [2023-11-19 07:37:27,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 299 flow [2023-11-19 07:37:27,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:37:27,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:37:27,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 728 transitions. [2023-11-19 07:37:27,123 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4354066985645933 [2023-11-19 07:37:27,124 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 728 transitions. [2023-11-19 07:37:27,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 728 transitions. [2023-11-19 07:37:27,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:27,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 728 transitions. [2023-11-19 07:37:27,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:27,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 418.0) internal successors, (2090), 5 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:27,133 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 418.0) internal successors, (2090), 5 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:27,133 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 166 flow. Second operand 4 states and 728 transitions. [2023-11-19 07:37:27,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 299 flow [2023-11-19 07:37:27,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 280 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-19 07:37:27,137 INFO L231 Difference]: Finished difference. Result has 39 places, 30 transitions, 213 flow [2023-11-19 07:37:27,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=213, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2023-11-19 07:37:27,138 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 10 predicate places. [2023-11-19 07:37:27,138 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 213 flow [2023-11-19 07:37:27,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 174.2) internal successors, (871), 5 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) [2023-11-19 07:37:27,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:27,140 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:27,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:37:27,140 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:27,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:27,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1419784154, now seen corresponding path program 1 times [2023-11-19 07:37:27,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:27,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716847850] [2023-11-19 07:37:27,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:27,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:27,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:27,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:27,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716847850] [2023-11-19 07:37:27,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716847850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:27,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:27,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:37:27,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343249175] [2023-11-19 07:37:27,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:27,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:27,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:27,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:27,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:27,823 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 418 [2023-11-19 07:37:27,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 213 flow. Second operand has 6 states, 6 states have (on average 172.16666666666666) internal successors, (1033), 6 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:27,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:27,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 418 [2023-11-19 07:37:27,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:27,975 INFO L124 PetriNetUnfolderBase]: 80/164 cut-off events. [2023-11-19 07:37:27,976 INFO L125 PetriNetUnfolderBase]: For 422/422 co-relation queries the response was YES. [2023-11-19 07:37:27,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 616 conditions, 164 events. 80/164 cut-off events. For 422/422 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 548 event pairs, 25 based on Foata normal form. 4/158 useless extension candidates. Maximal degree in co-relation 310. Up to 76 conditions per place. [2023-11-19 07:37:27,978 INFO L140 encePairwiseOnDemand]: 412/418 looper letters, 26 selfloop transitions, 11 changer transitions 2/40 dead transitions. [2023-11-19 07:37:27,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 40 transitions, 325 flow [2023-11-19 07:37:27,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:37:27,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:37:27,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 718 transitions. [2023-11-19 07:37:27,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42942583732057416 [2023-11-19 07:37:27,982 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 718 transitions. [2023-11-19 07:37:27,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 718 transitions. [2023-11-19 07:37:27,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:27,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 718 transitions. [2023-11-19 07:37:27,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 179.5) internal successors, (718), 4 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:27,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 418.0) internal successors, (2090), 5 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:27,990 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 418.0) internal successors, (2090), 5 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:27,990 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 213 flow. Second operand 4 states and 718 transitions. [2023-11-19 07:37:27,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 40 transitions, 325 flow [2023-11-19 07:37:27,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 40 transitions, 311 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-11-19 07:37:27,994 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 242 flow [2023-11-19 07:37:27,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2023-11-19 07:37:27,995 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 13 predicate places. [2023-11-19 07:37:27,996 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 242 flow [2023-11-19 07:37:27,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 172.16666666666666) internal successors, (1033), 6 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:27,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:27,997 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:27,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:37:27,997 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:27,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:27,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1393733037, now seen corresponding path program 1 times [2023-11-19 07:37:27,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:27,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592192088] [2023-11-19 07:37:27,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:27,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:28,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:28,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592192088] [2023-11-19 07:37:28,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592192088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:28,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:28,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:37:28,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276998416] [2023-11-19 07:37:28,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:28,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:28,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:28,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:28,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:28,554 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 418 [2023-11-19 07:37:28,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 242 flow. Second operand has 6 states, 6 states have (on average 172.16666666666666) internal successors, (1033), 6 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:28,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:28,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 418 [2023-11-19 07:37:28,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:28,688 INFO L124 PetriNetUnfolderBase]: 68/144 cut-off events. [2023-11-19 07:37:28,689 INFO L125 PetriNetUnfolderBase]: For 557/557 co-relation queries the response was YES. [2023-11-19 07:37:28,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 574 conditions, 144 events. 68/144 cut-off events. For 557/557 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 442 event pairs, 19 based on Foata normal form. 4/142 useless extension candidates. Maximal degree in co-relation 284. Up to 72 conditions per place. [2023-11-19 07:37:28,691 INFO L140 encePairwiseOnDemand]: 412/418 looper letters, 23 selfloop transitions, 12 changer transitions 2/38 dead transitions. [2023-11-19 07:37:28,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 38 transitions, 343 flow [2023-11-19 07:37:28,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:37:28,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:37:28,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 714 transitions. [2023-11-19 07:37:28,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4270334928229665 [2023-11-19 07:37:28,695 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 714 transitions. [2023-11-19 07:37:28,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 714 transitions. [2023-11-19 07:37:28,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:28,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 714 transitions. [2023-11-19 07:37:28,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 178.5) internal successors, (714), 4 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:28,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 418.0) internal successors, (2090), 5 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:28,703 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 418.0) internal successors, (2090), 5 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:28,704 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 242 flow. Second operand 4 states and 714 transitions. [2023-11-19 07:37:28,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 38 transitions, 343 flow [2023-11-19 07:37:28,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 38 transitions, 321 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-19 07:37:28,707 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 269 flow [2023-11-19 07:37:28,708 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=269, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2023-11-19 07:37:28,709 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 15 predicate places. [2023-11-19 07:37:28,709 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 269 flow [2023-11-19 07:37:28,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 172.16666666666666) internal successors, (1033), 6 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:28,710 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:28,710 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:28,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:37:28,711 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:28,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:28,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1523527609, now seen corresponding path program 1 times [2023-11-19 07:37:28,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:28,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790117046] [2023-11-19 07:37:28,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:28,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:29,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:29,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:29,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790117046] [2023-11-19 07:37:29,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790117046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:29,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:29,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:37:29,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46472471] [2023-11-19 07:37:29,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:29,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:37:29,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:29,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:37:29,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:37:29,929 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 418 [2023-11-19 07:37:29,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 269 flow. Second operand has 8 states, 8 states have (on average 170.125) internal successors, (1361), 8 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) [2023-11-19 07:37:29,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:29,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 418 [2023-11-19 07:37:29,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:30,338 INFO L124 PetriNetUnfolderBase]: 64/137 cut-off events. [2023-11-19 07:37:30,338 INFO L125 PetriNetUnfolderBase]: For 612/612 co-relation queries the response was YES. [2023-11-19 07:37:30,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 580 conditions, 137 events. 64/137 cut-off events. For 612/612 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 445 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 277. Up to 34 conditions per place. [2023-11-19 07:37:30,340 INFO L140 encePairwiseOnDemand]: 409/418 looper letters, 28 selfloop transitions, 23 changer transitions 6/58 dead transitions. [2023-11-19 07:37:30,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 58 transitions, 501 flow [2023-11-19 07:37:30,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:37:30,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-19 07:37:30,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1909 transitions. [2023-11-19 07:37:30,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4151805132666377 [2023-11-19 07:37:30,349 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1909 transitions. [2023-11-19 07:37:30,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1909 transitions. [2023-11-19 07:37:30,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:30,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1909 transitions. [2023-11-19 07:37:30,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 173.54545454545453) internal successors, (1909), 11 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:30,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 418.0) internal successors, (5016), 12 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:30,368 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 418.0) internal successors, (5016), 12 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:30,368 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 269 flow. Second operand 11 states and 1909 transitions. [2023-11-19 07:37:30,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 58 transitions, 501 flow [2023-11-19 07:37:30,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 58 transitions, 475 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-19 07:37:30,373 INFO L231 Difference]: Finished difference. Result has 55 places, 38 transitions, 358 flow [2023-11-19 07:37:30,373 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=358, PETRI_PLACES=55, PETRI_TRANSITIONS=38} [2023-11-19 07:37:30,374 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 26 predicate places. [2023-11-19 07:37:30,374 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 38 transitions, 358 flow [2023-11-19 07:37:30,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 170.125) internal successors, (1361), 8 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) [2023-11-19 07:37:30,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:30,376 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:30,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:37:30,376 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:30,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:30,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1392743946, now seen corresponding path program 1 times [2023-11-19 07:37:30,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:30,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998841066] [2023-11-19 07:37:30,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:30,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:30,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:30,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:30,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998841066] [2023-11-19 07:37:30,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998841066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:30,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:30,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:37:30,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454994788] [2023-11-19 07:37:30,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:30,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:37:30,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:30,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:37:30,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:37:31,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 418 [2023-11-19 07:37:31,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 38 transitions, 358 flow. Second operand has 5 states, 5 states have (on average 175.8) internal successors, (879), 5 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:31,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:31,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 418 [2023-11-19 07:37:31,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:31,265 INFO L124 PetriNetUnfolderBase]: 71/160 cut-off events. [2023-11-19 07:37:31,265 INFO L125 PetriNetUnfolderBase]: For 749/749 co-relation queries the response was YES. [2023-11-19 07:37:31,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 689 conditions, 160 events. 71/160 cut-off events. For 749/749 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 581 event pairs, 13 based on Foata normal form. 3/161 useless extension candidates. Maximal degree in co-relation 495. Up to 87 conditions per place. [2023-11-19 07:37:31,268 INFO L140 encePairwiseOnDemand]: 408/418 looper letters, 32 selfloop transitions, 21 changer transitions 2/56 dead transitions. [2023-11-19 07:37:31,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 56 transitions, 538 flow [2023-11-19 07:37:31,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:37:31,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 07:37:31,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1433 transitions. [2023-11-19 07:37:31,276 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4285287081339713 [2023-11-19 07:37:31,276 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1433 transitions. [2023-11-19 07:37:31,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1433 transitions. [2023-11-19 07:37:31,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:31,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1433 transitions. [2023-11-19 07:37:31,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 179.125) internal successors, (1433), 8 states have internal predecessors, (1433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:31,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 418.0) internal successors, (3762), 9 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:31,291 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 418.0) internal successors, (3762), 9 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:31,292 INFO L175 Difference]: Start difference. First operand has 55 places, 38 transitions, 358 flow. Second operand 8 states and 1433 transitions. [2023-11-19 07:37:31,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 56 transitions, 538 flow [2023-11-19 07:37:31,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 56 transitions, 472 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-19 07:37:31,297 INFO L231 Difference]: Finished difference. Result has 58 places, 42 transitions, 384 flow [2023-11-19 07:37:31,298 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=384, PETRI_PLACES=58, PETRI_TRANSITIONS=42} [2023-11-19 07:37:31,301 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 29 predicate places. [2023-11-19 07:37:31,301 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 42 transitions, 384 flow [2023-11-19 07:37:31,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 175.8) internal successors, (879), 5 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:31,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:31,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:31,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:37:31,304 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:31,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:31,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1523452280, now seen corresponding path program 2 times [2023-11-19 07:37:31,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:31,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512879419] [2023-11-19 07:37:31,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:31,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:31,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:31,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:31,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512879419] [2023-11-19 07:37:31,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512879419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:31,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:31,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:37:31,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139399169] [2023-11-19 07:37:31,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:31,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:37:31,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:31,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:37:31,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:37:31,760 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 418 [2023-11-19 07:37:31,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 42 transitions, 384 flow. Second operand has 5 states, 5 states have (on average 175.8) internal successors, (879), 5 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:31,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:31,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 418 [2023-11-19 07:37:31,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:31,975 INFO L124 PetriNetUnfolderBase]: 72/180 cut-off events. [2023-11-19 07:37:31,975 INFO L125 PetriNetUnfolderBase]: For 607/607 co-relation queries the response was YES. [2023-11-19 07:37:31,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 762 conditions, 180 events. 72/180 cut-off events. For 607/607 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 721 event pairs, 7 based on Foata normal form. 5/185 useless extension candidates. Maximal degree in co-relation 603. Up to 74 conditions per place. [2023-11-19 07:37:31,978 INFO L140 encePairwiseOnDemand]: 410/418 looper letters, 39 selfloop transitions, 18 changer transitions 1/59 dead transitions. [2023-11-19 07:37:31,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 59 transitions, 576 flow [2023-11-19 07:37:31,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:37:31,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:37:31,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1260 transitions. [2023-11-19 07:37:31,984 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.430622009569378 [2023-11-19 07:37:31,984 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1260 transitions. [2023-11-19 07:37:31,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1260 transitions. [2023-11-19 07:37:31,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:31,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1260 transitions. [2023-11-19 07:37:31,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:31,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 418.0) internal successors, (3344), 8 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:31,999 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 418.0) internal successors, (3344), 8 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:31,999 INFO L175 Difference]: Start difference. First operand has 58 places, 42 transitions, 384 flow. Second operand 7 states and 1260 transitions. [2023-11-19 07:37:31,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 59 transitions, 576 flow [2023-11-19 07:37:32,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 59 transitions, 529 flow, removed 9 selfloop flow, removed 5 redundant places. [2023-11-19 07:37:32,006 INFO L231 Difference]: Finished difference. Result has 60 places, 44 transitions, 406 flow [2023-11-19 07:37:32,006 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=406, PETRI_PLACES=60, PETRI_TRANSITIONS=44} [2023-11-19 07:37:32,007 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 31 predicate places. [2023-11-19 07:37:32,007 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 44 transitions, 406 flow [2023-11-19 07:37:32,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 175.8) internal successors, (879), 5 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:32,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:32,008 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:32,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:37:32,008 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:32,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:32,008 INFO L85 PathProgramCache]: Analyzing trace with hash -663119222, now seen corresponding path program 1 times [2023-11-19 07:37:32,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:32,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822867445] [2023-11-19 07:37:32,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:32,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:32,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:32,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:32,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822867445] [2023-11-19 07:37:32,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822867445] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:32,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:32,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:37:32,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506645718] [2023-11-19 07:37:32,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:32,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:37:32,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:32,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:37:32,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:37:32,907 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 418 [2023-11-19 07:37:32,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 44 transitions, 406 flow. Second operand has 8 states, 8 states have (on average 170.125) internal successors, (1361), 8 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) [2023-11-19 07:37:32,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:32,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 418 [2023-11-19 07:37:32,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:33,229 INFO L124 PetriNetUnfolderBase]: 70/181 cut-off events. [2023-11-19 07:37:33,229 INFO L125 PetriNetUnfolderBase]: For 707/707 co-relation queries the response was YES. [2023-11-19 07:37:33,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 181 events. 70/181 cut-off events. For 707/707 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 741 event pairs, 16 based on Foata normal form. 2/183 useless extension candidates. Maximal degree in co-relation 610. Up to 95 conditions per place. [2023-11-19 07:37:33,232 INFO L140 encePairwiseOnDemand]: 410/418 looper letters, 34 selfloop transitions, 16 changer transitions 10/61 dead transitions. [2023-11-19 07:37:33,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 61 transitions, 589 flow [2023-11-19 07:37:33,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:37:33,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-19 07:37:33,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1564 transitions. [2023-11-19 07:37:33,239 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41573631047315257 [2023-11-19 07:37:33,239 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1564 transitions. [2023-11-19 07:37:33,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1564 transitions. [2023-11-19 07:37:33,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:33,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1564 transitions. [2023-11-19 07:37:33,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 173.77777777777777) internal successors, (1564), 9 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:33,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 418.0) internal successors, (4180), 10 states have internal predecessors, (4180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:33,254 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 418.0) internal successors, (4180), 10 states have internal predecessors, (4180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:33,255 INFO L175 Difference]: Start difference. First operand has 60 places, 44 transitions, 406 flow. Second operand 9 states and 1564 transitions. [2023-11-19 07:37:33,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 61 transitions, 589 flow [2023-11-19 07:37:33,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 61 transitions, 583 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:37:33,261 INFO L231 Difference]: Finished difference. Result has 68 places, 43 transitions, 427 flow [2023-11-19 07:37:33,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=427, PETRI_PLACES=68, PETRI_TRANSITIONS=43} [2023-11-19 07:37:33,262 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 39 predicate places. [2023-11-19 07:37:33,262 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 43 transitions, 427 flow [2023-11-19 07:37:33,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 170.125) internal successors, (1361), 8 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) [2023-11-19 07:37:33,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:33,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:33,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:37:33,264 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:33,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:33,264 INFO L85 PathProgramCache]: Analyzing trace with hash -657266732, now seen corresponding path program 2 times [2023-11-19 07:37:33,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:33,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662751937] [2023-11-19 07:37:33,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:33,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:33,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:33,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:33,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662751937] [2023-11-19 07:37:33,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662751937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:33,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:33,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:37:33,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594570175] [2023-11-19 07:37:33,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:33,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:37:33,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:33,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:37:33,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:37:34,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 418 [2023-11-19 07:37:34,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 43 transitions, 427 flow. Second operand has 8 states, 8 states have (on average 172.125) internal successors, (1377), 8 states have internal predecessors, (1377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:34,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:34,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 418 [2023-11-19 07:37:34,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:34,602 INFO L124 PetriNetUnfolderBase]: 69/193 cut-off events. [2023-11-19 07:37:34,602 INFO L125 PetriNetUnfolderBase]: For 842/842 co-relation queries the response was YES. [2023-11-19 07:37:34,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 889 conditions, 193 events. 69/193 cut-off events. For 842/842 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 863 event pairs, 13 based on Foata normal form. 4/197 useless extension candidates. Maximal degree in co-relation 857. Up to 84 conditions per place. [2023-11-19 07:37:34,605 INFO L140 encePairwiseOnDemand]: 409/418 looper letters, 39 selfloop transitions, 24 changer transitions 9/73 dead transitions. [2023-11-19 07:37:34,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 73 transitions, 749 flow [2023-11-19 07:37:34,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:37:34,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-19 07:37:34,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2282 transitions. [2023-11-19 07:37:34,614 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4199484725800515 [2023-11-19 07:37:34,614 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2282 transitions. [2023-11-19 07:37:34,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2282 transitions. [2023-11-19 07:37:34,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:34,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2282 transitions. [2023-11-19 07:37:34,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 175.53846153846155) internal successors, (2282), 13 states have internal predecessors, (2282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:34,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 418.0) internal successors, (5852), 14 states have internal predecessors, (5852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:34,636 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 418.0) internal successors, (5852), 14 states have internal predecessors, (5852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:34,636 INFO L175 Difference]: Start difference. First operand has 68 places, 43 transitions, 427 flow. Second operand 13 states and 2282 transitions. [2023-11-19 07:37:34,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 73 transitions, 749 flow [2023-11-19 07:37:34,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 73 transitions, 709 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-11-19 07:37:34,644 INFO L231 Difference]: Finished difference. Result has 76 places, 48 transitions, 514 flow [2023-11-19 07:37:34,644 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=514, PETRI_PLACES=76, PETRI_TRANSITIONS=48} [2023-11-19 07:37:34,645 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 47 predicate places. [2023-11-19 07:37:34,645 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 48 transitions, 514 flow [2023-11-19 07:37:34,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 172.125) internal successors, (1377), 8 states have internal predecessors, (1377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:34,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:34,646 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:34,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:37:34,647 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:34,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:34,647 INFO L85 PathProgramCache]: Analyzing trace with hash -657266733, now seen corresponding path program 1 times [2023-11-19 07:37:34,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:34,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542806796] [2023-11-19 07:37:34,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:34,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:34,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:34,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:34,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542806796] [2023-11-19 07:37:34,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542806796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:34,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:34,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:37:34,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99454595] [2023-11-19 07:37:34,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:34,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:37:34,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:34,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:37:34,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:37:35,068 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 418 [2023-11-19 07:37:35,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 48 transitions, 514 flow. Second operand has 5 states, 5 states have (on average 175.8) internal successors, (879), 5 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:35,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:35,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 418 [2023-11-19 07:37:35,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:35,280 INFO L124 PetriNetUnfolderBase]: 50/141 cut-off events. [2023-11-19 07:37:35,280 INFO L125 PetriNetUnfolderBase]: For 705/705 co-relation queries the response was YES. [2023-11-19 07:37:35,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 719 conditions, 141 events. 50/141 cut-off events. For 705/705 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 561 event pairs, 9 based on Foata normal form. 7/148 useless extension candidates. Maximal degree in co-relation 656. Up to 42 conditions per place. [2023-11-19 07:37:35,283 INFO L140 encePairwiseOnDemand]: 408/418 looper letters, 31 selfloop transitions, 23 changer transitions 4/59 dead transitions. [2023-11-19 07:37:35,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 59 transitions, 656 flow [2023-11-19 07:37:35,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:37:35,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:37:35,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1262 transitions. [2023-11-19 07:37:35,289 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43130553656869447 [2023-11-19 07:37:35,289 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1262 transitions. [2023-11-19 07:37:35,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1262 transitions. [2023-11-19 07:37:35,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:35,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1262 transitions. [2023-11-19 07:37:35,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 180.28571428571428) internal successors, (1262), 7 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:35,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 418.0) internal successors, (3344), 8 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:35,301 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 418.0) internal successors, (3344), 8 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:35,301 INFO L175 Difference]: Start difference. First operand has 76 places, 48 transitions, 514 flow. Second operand 7 states and 1262 transitions. [2023-11-19 07:37:35,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 59 transitions, 656 flow [2023-11-19 07:37:35,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 59 transitions, 601 flow, removed 2 selfloop flow, removed 7 redundant places. [2023-11-19 07:37:35,308 INFO L231 Difference]: Finished difference. Result has 76 places, 43 transitions, 451 flow [2023-11-19 07:37:35,308 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=451, PETRI_PLACES=76, PETRI_TRANSITIONS=43} [2023-11-19 07:37:35,309 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 47 predicate places. [2023-11-19 07:37:35,309 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 43 transitions, 451 flow [2023-11-19 07:37:35,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 175.8) internal successors, (879), 5 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:35,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:35,310 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:35,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:37:35,311 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:35,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:35,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1561121930, now seen corresponding path program 3 times [2023-11-19 07:37:35,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:35,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119521204] [2023-11-19 07:37:35,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:35,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:35,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:35,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:35,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119521204] [2023-11-19 07:37:35,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119521204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:35,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:35,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:37:35,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50136866] [2023-11-19 07:37:35,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:35,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:37:35,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:35,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:37:35,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:37:36,095 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 418 [2023-11-19 07:37:36,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 43 transitions, 451 flow. Second operand has 7 states, 7 states have (on average 170.28571428571428) internal successors, (1192), 7 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:36,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:36,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 418 [2023-11-19 07:37:36,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:36,310 INFO L124 PetriNetUnfolderBase]: 40/114 cut-off events. [2023-11-19 07:37:36,310 INFO L125 PetriNetUnfolderBase]: For 576/576 co-relation queries the response was YES. [2023-11-19 07:37:36,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 114 events. 40/114 cut-off events. For 576/576 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 410 event pairs, 7 based on Foata normal form. 3/117 useless extension candidates. Maximal degree in co-relation 540. Up to 43 conditions per place. [2023-11-19 07:37:36,312 INFO L140 encePairwiseOnDemand]: 409/418 looper letters, 26 selfloop transitions, 23 changer transitions 0/50 dead transitions. [2023-11-19 07:37:36,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 50 transitions, 558 flow [2023-11-19 07:37:36,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:37:36,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 07:37:36,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1384 transitions. [2023-11-19 07:37:36,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4138755980861244 [2023-11-19 07:37:36,318 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1384 transitions. [2023-11-19 07:37:36,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1384 transitions. [2023-11-19 07:37:36,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:36,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1384 transitions. [2023-11-19 07:37:36,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 173.0) internal successors, (1384), 8 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:36,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 418.0) internal successors, (3762), 9 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:36,330 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 418.0) internal successors, (3762), 9 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:36,330 INFO L175 Difference]: Start difference. First operand has 76 places, 43 transitions, 451 flow. Second operand 8 states and 1384 transitions. [2023-11-19 07:37:36,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 50 transitions, 558 flow [2023-11-19 07:37:36,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 50 transitions, 510 flow, removed 5 selfloop flow, removed 8 redundant places. [2023-11-19 07:37:36,336 INFO L231 Difference]: Finished difference. Result has 72 places, 42 transitions, 437 flow [2023-11-19 07:37:36,337 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=437, PETRI_PLACES=72, PETRI_TRANSITIONS=42} [2023-11-19 07:37:36,337 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 43 predicate places. [2023-11-19 07:37:36,337 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 42 transitions, 437 flow [2023-11-19 07:37:36,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 170.28571428571428) internal successors, (1192), 7 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:36,338 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:36,338 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:36,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:37:36,339 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:36,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:36,339 INFO L85 PathProgramCache]: Analyzing trace with hash -657334622, now seen corresponding path program 3 times [2023-11-19 07:37:36,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:36,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039053237] [2023-11-19 07:37:36,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:36,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:37,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:37,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:37,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039053237] [2023-11-19 07:37:37,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039053237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:37,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:37,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:37:37,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492109184] [2023-11-19 07:37:37,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:37,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:37:37,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:37,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:37:37,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:37:37,447 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 418 [2023-11-19 07:37:37,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 42 transitions, 437 flow. Second operand has 8 states, 8 states have (on average 170.125) internal successors, (1361), 8 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) [2023-11-19 07:37:37,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:37,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 418 [2023-11-19 07:37:37,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:37,819 INFO L124 PetriNetUnfolderBase]: 39/111 cut-off events. [2023-11-19 07:37:37,819 INFO L125 PetriNetUnfolderBase]: For 613/613 co-relation queries the response was YES. [2023-11-19 07:37:37,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 563 conditions, 111 events. 39/111 cut-off events. For 613/613 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 400 event pairs, 3 based on Foata normal form. 2/113 useless extension candidates. Maximal degree in co-relation 373. Up to 46 conditions per place. [2023-11-19 07:37:37,821 INFO L140 encePairwiseOnDemand]: 410/418 looper letters, 34 selfloop transitions, 19 changer transitions 0/54 dead transitions. [2023-11-19 07:37:37,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 54 transitions, 565 flow [2023-11-19 07:37:37,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:37:37,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:37:37,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1731 transitions. [2023-11-19 07:37:37,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41411483253588516 [2023-11-19 07:37:37,830 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1731 transitions. [2023-11-19 07:37:37,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1731 transitions. [2023-11-19 07:37:37,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:37,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1731 transitions. [2023-11-19 07:37:37,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 173.1) internal successors, (1731), 10 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:37,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:37,846 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:37,846 INFO L175 Difference]: Start difference. First operand has 72 places, 42 transitions, 437 flow. Second operand 10 states and 1731 transitions. [2023-11-19 07:37:37,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 54 transitions, 565 flow [2023-11-19 07:37:37,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 54 transitions, 518 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-11-19 07:37:37,852 INFO L231 Difference]: Finished difference. Result has 74 places, 41 transitions, 418 flow [2023-11-19 07:37:37,852 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=418, PETRI_PLACES=74, PETRI_TRANSITIONS=41} [2023-11-19 07:37:37,853 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 45 predicate places. [2023-11-19 07:37:37,853 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 41 transitions, 418 flow [2023-11-19 07:37:37,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 170.125) internal successors, (1361), 8 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) [2023-11-19 07:37:37,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:37,854 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:37,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:37:37,854 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:37,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:37,855 INFO L85 PathProgramCache]: Analyzing trace with hash -657334623, now seen corresponding path program 2 times [2023-11-19 07:37:37,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:37,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914777556] [2023-11-19 07:37:37,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:37,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:38,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:38,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:38,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914777556] [2023-11-19 07:37:38,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914777556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:38,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:38,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:37:38,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590183342] [2023-11-19 07:37:38,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:38,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:37:38,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:38,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:37:38,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:37:38,490 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 418 [2023-11-19 07:37:38,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 41 transitions, 418 flow. Second operand has 5 states, 5 states have (on average 171.8) internal successors, (859), 5 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:38,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:38,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 418 [2023-11-19 07:37:38,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:38,721 INFO L124 PetriNetUnfolderBase]: 37/110 cut-off events. [2023-11-19 07:37:38,721 INFO L125 PetriNetUnfolderBase]: For 649/649 co-relation queries the response was YES. [2023-11-19 07:37:38,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 110 events. 37/110 cut-off events. For 649/649 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 389 event pairs, 7 based on Foata normal form. 2/112 useless extension candidates. Maximal degree in co-relation 367. Up to 41 conditions per place. [2023-11-19 07:37:38,723 INFO L140 encePairwiseOnDemand]: 410/418 looper letters, 24 selfloop transitions, 21 changer transitions 5/51 dead transitions. [2023-11-19 07:37:38,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 51 transitions, 552 flow [2023-11-19 07:37:38,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:37:38,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:37:38,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1226 transitions. [2023-11-19 07:37:38,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41900205058099793 [2023-11-19 07:37:38,729 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1226 transitions. [2023-11-19 07:37:38,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1226 transitions. [2023-11-19 07:37:38,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:38,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1226 transitions. [2023-11-19 07:37:38,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 175.14285714285714) internal successors, (1226), 7 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) [2023-11-19 07:37:38,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 418.0) internal successors, (3344), 8 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:38,742 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 418.0) internal successors, (3344), 8 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:38,742 INFO L175 Difference]: Start difference. First operand has 74 places, 41 transitions, 418 flow. Second operand 7 states and 1226 transitions. [2023-11-19 07:37:38,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 51 transitions, 552 flow [2023-11-19 07:37:38,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 51 transitions, 498 flow, removed 1 selfloop flow, removed 9 redundant places. [2023-11-19 07:37:38,747 INFO L231 Difference]: Finished difference. Result has 69 places, 38 transitions, 404 flow [2023-11-19 07:37:38,748 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=404, PETRI_PLACES=69, PETRI_TRANSITIONS=38} [2023-11-19 07:37:38,748 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 40 predicate places. [2023-11-19 07:37:38,749 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 38 transitions, 404 flow [2023-11-19 07:37:38,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 171.8) internal successors, (859), 5 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:38,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:38,750 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:38,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 07:37:38,750 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:38,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:38,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1527295018, now seen corresponding path program 1 times [2023-11-19 07:37:38,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:38,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609528245] [2023-11-19 07:37:38,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:38,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:39,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:39,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:39,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609528245] [2023-11-19 07:37:39,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609528245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:39,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:39,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:37:39,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298925991] [2023-11-19 07:37:39,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:39,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:37:39,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:39,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:37:39,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:37:40,672 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 418 [2023-11-19 07:37:40,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 38 transitions, 404 flow. Second operand has 10 states, 10 states have (on average 159.2) internal successors, (1592), 10 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:40,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:40,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 418 [2023-11-19 07:37:40,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:41,754 INFO L124 PetriNetUnfolderBase]: 33/156 cut-off events. [2023-11-19 07:37:41,754 INFO L125 PetriNetUnfolderBase]: For 1018/1018 co-relation queries the response was YES. [2023-11-19 07:37:41,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 796 conditions, 156 events. 33/156 cut-off events. For 1018/1018 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 800 event pairs, 3 based on Foata normal form. 2/158 useless extension candidates. Maximal degree in co-relation 547. Up to 29 conditions per place. [2023-11-19 07:37:41,756 INFO L140 encePairwiseOnDemand]: 408/418 looper letters, 41 selfloop transitions, 51 changer transitions 0/93 dead transitions. [2023-11-19 07:37:41,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 93 transitions, 1083 flow [2023-11-19 07:37:41,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-19 07:37:41,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-11-19 07:37:41,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3541 transitions. [2023-11-19 07:37:41,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3850587211831231 [2023-11-19 07:37:41,769 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3541 transitions. [2023-11-19 07:37:41,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3541 transitions. [2023-11-19 07:37:41,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:41,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3541 transitions. [2023-11-19 07:37:41,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 160.95454545454547) internal successors, (3541), 22 states have internal predecessors, (3541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:41,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 418.0) internal successors, (9614), 23 states have internal predecessors, (9614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:41,797 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 418.0) internal successors, (9614), 23 states have internal predecessors, (9614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:41,797 INFO L175 Difference]: Start difference. First operand has 69 places, 38 transitions, 404 flow. Second operand 22 states and 3541 transitions. [2023-11-19 07:37:41,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 93 transitions, 1083 flow [2023-11-19 07:37:41,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 93 transitions, 973 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-19 07:37:41,809 INFO L231 Difference]: Finished difference. Result has 81 places, 72 transitions, 786 flow [2023-11-19 07:37:41,809 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=786, PETRI_PLACES=81, PETRI_TRANSITIONS=72} [2023-11-19 07:37:41,810 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 52 predicate places. [2023-11-19 07:37:41,810 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 72 transitions, 786 flow [2023-11-19 07:37:41,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 159.2) internal successors, (1592), 10 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:41,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:41,811 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:41,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 07:37:41,812 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:41,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:41,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1846324460, now seen corresponding path program 2 times [2023-11-19 07:37:41,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:41,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123230065] [2023-11-19 07:37:41,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:41,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:42,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:42,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:42,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123230065] [2023-11-19 07:37:42,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123230065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:42,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:42,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:37:42,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385586481] [2023-11-19 07:37:42,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:42,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:37:42,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:42,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:37:42,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:37:43,389 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 418 [2023-11-19 07:37:43,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 72 transitions, 786 flow. Second operand has 10 states, 10 states have (on average 159.2) internal successors, (1592), 10 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:43,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:43,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 418 [2023-11-19 07:37:43,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:44,172 INFO L124 PetriNetUnfolderBase]: 31/164 cut-off events. [2023-11-19 07:37:44,172 INFO L125 PetriNetUnfolderBase]: For 888/888 co-relation queries the response was YES. [2023-11-19 07:37:44,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 886 conditions, 164 events. 31/164 cut-off events. For 888/888 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 904 event pairs, 2 based on Foata normal form. 5/169 useless extension candidates. Maximal degree in co-relation 765. Up to 29 conditions per place. [2023-11-19 07:37:44,174 INFO L140 encePairwiseOnDemand]: 408/418 looper letters, 35 selfloop transitions, 52 changer transitions 0/88 dead transitions. [2023-11-19 07:37:44,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 88 transitions, 1071 flow [2023-11-19 07:37:44,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:37:44,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-19 07:37:44,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2416 transitions. [2023-11-19 07:37:44,181 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3853269537480064 [2023-11-19 07:37:44,181 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2416 transitions. [2023-11-19 07:37:44,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2416 transitions. [2023-11-19 07:37:44,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:44,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2416 transitions. [2023-11-19 07:37:44,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 161.06666666666666) internal successors, (2416), 15 states have internal predecessors, (2416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:44,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 418.0) internal successors, (6688), 16 states have internal predecessors, (6688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:44,201 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 418.0) internal successors, (6688), 16 states have internal predecessors, (6688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:44,202 INFO L175 Difference]: Start difference. First operand has 81 places, 72 transitions, 786 flow. Second operand 15 states and 2416 transitions. [2023-11-19 07:37:44,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 88 transitions, 1071 flow [2023-11-19 07:37:44,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 88 transitions, 1012 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-11-19 07:37:44,215 INFO L231 Difference]: Finished difference. Result has 92 places, 80 transitions, 955 flow [2023-11-19 07:37:44,216 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=955, PETRI_PLACES=92, PETRI_TRANSITIONS=80} [2023-11-19 07:37:44,216 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 63 predicate places. [2023-11-19 07:37:44,216 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 80 transitions, 955 flow [2023-11-19 07:37:44,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 159.2) internal successors, (1592), 10 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:44,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:44,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:44,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-19 07:37:44,218 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:44,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:44,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1833379790, now seen corresponding path program 3 times [2023-11-19 07:37:44,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:44,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540931562] [2023-11-19 07:37:44,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:44,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:45,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:45,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:45,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540931562] [2023-11-19 07:37:45,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540931562] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:45,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:45,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:37:45,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727870559] [2023-11-19 07:37:45,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:45,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:37:45,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:45,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:37:45,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:37:46,042 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 418 [2023-11-19 07:37:46,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 80 transitions, 955 flow. Second operand has 10 states, 10 states have (on average 159.2) internal successors, (1592), 10 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:46,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:46,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 418 [2023-11-19 07:37:46,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:47,040 INFO L124 PetriNetUnfolderBase]: 31/162 cut-off events. [2023-11-19 07:37:47,040 INFO L125 PetriNetUnfolderBase]: For 1048/1048 co-relation queries the response was YES. [2023-11-19 07:37:47,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 947 conditions, 162 events. 31/162 cut-off events. For 1048/1048 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 882 event pairs, 2 based on Foata normal form. 2/164 useless extension candidates. Maximal degree in co-relation 828. Up to 27 conditions per place. [2023-11-19 07:37:47,042 INFO L140 encePairwiseOnDemand]: 408/418 looper letters, 29 selfloop transitions, 62 changer transitions 0/92 dead transitions. [2023-11-19 07:37:47,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 92 transitions, 1207 flow [2023-11-19 07:37:47,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-19 07:37:47,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-19 07:37:47,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3376 transitions. [2023-11-19 07:37:47,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3845978582820688 [2023-11-19 07:37:47,050 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3376 transitions. [2023-11-19 07:37:47,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3376 transitions. [2023-11-19 07:37:47,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:47,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3376 transitions. [2023-11-19 07:37:47,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 160.76190476190476) internal successors, (3376), 21 states have internal predecessors, (3376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:47,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 418.0) internal successors, (9196), 22 states have internal predecessors, (9196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:47,095 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 418.0) internal successors, (9196), 22 states have internal predecessors, (9196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:47,095 INFO L175 Difference]: Start difference. First operand has 92 places, 80 transitions, 955 flow. Second operand 21 states and 3376 transitions. [2023-11-19 07:37:47,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 92 transitions, 1207 flow [2023-11-19 07:37:47,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 92 transitions, 1164 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-11-19 07:37:47,105 INFO L231 Difference]: Finished difference. Result has 109 places, 82 transitions, 1095 flow [2023-11-19 07:37:47,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1095, PETRI_PLACES=109, PETRI_TRANSITIONS=82} [2023-11-19 07:37:47,106 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 80 predicate places. [2023-11-19 07:37:47,106 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 82 transitions, 1095 flow [2023-11-19 07:37:47,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 159.2) internal successors, (1592), 10 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:47,107 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:47,107 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:47,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-19 07:37:47,107 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:47,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:47,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1846324461, now seen corresponding path program 1 times [2023-11-19 07:37:47,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:47,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127128341] [2023-11-19 07:37:47,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:47,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:47,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:47,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:47,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:47,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127128341] [2023-11-19 07:37:47,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127128341] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:47,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:47,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:37:47,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180126532] [2023-11-19 07:37:47,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:47,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:37:47,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:47,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:37:47,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:37:47,972 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 418 [2023-11-19 07:37:47,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 82 transitions, 1095 flow. Second operand has 8 states, 8 states have (on average 164.5) internal successors, (1316), 8 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:47,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:47,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 418 [2023-11-19 07:37:47,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:48,180 INFO L124 PetriNetUnfolderBase]: 30/163 cut-off events. [2023-11-19 07:37:48,180 INFO L125 PetriNetUnfolderBase]: For 1154/1154 co-relation queries the response was YES. [2023-11-19 07:37:48,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1038 conditions, 163 events. 30/163 cut-off events. For 1154/1154 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 891 event pairs, 2 based on Foata normal form. 1/164 useless extension candidates. Maximal degree in co-relation 906. Up to 90 conditions per place. [2023-11-19 07:37:48,183 INFO L140 encePairwiseOnDemand]: 409/418 looper letters, 45 selfloop transitions, 39 changer transitions 3/88 dead transitions. [2023-11-19 07:37:48,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 88 transitions, 1290 flow [2023-11-19 07:37:48,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:37:48,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-19 07:37:48,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1498 transitions. [2023-11-19 07:37:48,187 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39819245082402976 [2023-11-19 07:37:48,187 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1498 transitions. [2023-11-19 07:37:48,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1498 transitions. [2023-11-19 07:37:48,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:48,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1498 transitions. [2023-11-19 07:37:48,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 166.44444444444446) internal successors, (1498), 9 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) [2023-11-19 07:37:48,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 418.0) internal successors, (4180), 10 states have internal predecessors, (4180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:48,198 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 418.0) internal successors, (4180), 10 states have internal predecessors, (4180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:48,198 INFO L175 Difference]: Start difference. First operand has 109 places, 82 transitions, 1095 flow. Second operand 9 states and 1498 transitions. [2023-11-19 07:37:48,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 88 transitions, 1290 flow [2023-11-19 07:37:48,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 88 transitions, 1180 flow, removed 9 selfloop flow, removed 15 redundant places. [2023-11-19 07:37:48,211 INFO L231 Difference]: Finished difference. Result has 103 places, 80 transitions, 1045 flow [2023-11-19 07:37:48,212 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=987, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1045, PETRI_PLACES=103, PETRI_TRANSITIONS=80} [2023-11-19 07:37:48,212 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 74 predicate places. [2023-11-19 07:37:48,213 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 80 transitions, 1045 flow [2023-11-19 07:37:48,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 164.5) internal successors, (1316), 8 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:48,213 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:48,214 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:48,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-19 07:37:48,214 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:37:48,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:48,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1820790753, now seen corresponding path program 2 times [2023-11-19 07:37:48,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:48,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60713312] [2023-11-19 07:37:48,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:48,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:48,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:48,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:48,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60713312] [2023-11-19 07:37:48,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60713312] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:48,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:48,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:37:48,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461146761] [2023-11-19 07:37:48,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:48,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:37:48,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:48,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:37:48,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72