./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.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_ea1c31d1-640a-4088-96cd-04eff8fda253/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1c31d1-640a-4088-96cd-04eff8fda253/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_ea1c31d1-640a-4088-96cd-04eff8fda253/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1c31d1-640a-4088-96cd-04eff8fda253/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1c31d1-640a-4088-96cd-04eff8fda253/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_ea1c31d1-640a-4088-96cd-04eff8fda253/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 c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:39:06,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:39:06,115 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1c31d1-640a-4088-96cd-04eff8fda253/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:39:06,120 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:39:06,121 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:39:06,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:39:06,146 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:39:06,147 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:39:06,148 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:39:06,148 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:39:06,149 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:39:06,149 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:39:06,150 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:39:06,151 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:39:06,151 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:39:06,152 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:39:06,152 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:39:06,153 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:39:06,153 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:39:06,154 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:39:06,154 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:39:06,155 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:39:06,155 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:39:06,156 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:39:06,156 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:39:06,157 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:39:06,157 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:39:06,158 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:39:06,158 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:39:06,159 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:39:06,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:06,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:39:06,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:39:06,161 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:39:06,161 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:39:06,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:39:06,162 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:39:06,162 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:39:06,163 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:39:06,163 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:39:06,164 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:39:06,164 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_ea1c31d1-640a-4088-96cd-04eff8fda253/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1c31d1-640a-4088-96cd-04eff8fda253/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2023-11-19 07:39:06,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:39:06,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:39:06,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:39:06,509 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:39:06,510 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:39:06,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1c31d1-640a-4088-96cd-04eff8fda253/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-19 07:39:09,712 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:39:10,103 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:39:10,104 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1c31d1-640a-4088-96cd-04eff8fda253/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2023-11-19 07:39:10,139 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1c31d1-640a-4088-96cd-04eff8fda253/bin/uautomizer-verify-uCwYo4JHxu/data/584ba3879/50a9b4e82ab64f5895b8eb06fb528566/FLAGb65b82885 [2023-11-19 07:39:10,160 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1c31d1-640a-4088-96cd-04eff8fda253/bin/uautomizer-verify-uCwYo4JHxu/data/584ba3879/50a9b4e82ab64f5895b8eb06fb528566 [2023-11-19 07:39:10,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:39:10,169 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:39:10,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:10,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:39:10,180 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:39:10,183 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:10" (1/1) ... [2023-11-19 07:39:10,186 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21019cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:10, skipping insertion in model container [2023-11-19 07:39:10,186 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:10" (1/1) ... [2023-11-19 07:39:10,265 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:39:10,471 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:39:11,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:11,486 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:39:11,500 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:39:11,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:11,797 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:39:11,798 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:39:11,798 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:39:11,807 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:39:11,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:11 WrapperNode [2023-11-19 07:39:11,808 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:11,810 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:11,810 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:39:11,811 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:39:11,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:11" (1/1) ... [2023-11-19 07:39:11,857 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:11" (1/1) ... [2023-11-19 07:39:11,892 INFO L138 Inliner]: procedures = 469, calls = 64, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 162 [2023-11-19 07:39:11,893 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:11,894 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:39:11,894 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:39:11,894 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:39:11,905 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:11" (1/1) ... [2023-11-19 07:39:11,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:11" (1/1) ... [2023-11-19 07:39:11,911 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:11" (1/1) ... [2023-11-19 07:39:11,912 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:11" (1/1) ... [2023-11-19 07:39:11,928 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:11" (1/1) ... [2023-11-19 07:39:11,931 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:11" (1/1) ... [2023-11-19 07:39:11,936 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:11" (1/1) ... [2023-11-19 07:39:11,939 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:11" (1/1) ... [2023-11-19 07:39:11,946 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:39:11,948 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:39:11,948 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:39:11,948 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:39:11,949 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:11" (1/1) ... [2023-11-19 07:39:11,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:11,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1c31d1-640a-4088-96cd-04eff8fda253/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:12,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1c31d1-640a-4088-96cd-04eff8fda253/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:39:12,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1c31d1-640a-4088-96cd-04eff8fda253/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:39:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:39:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:39:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:39:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:39:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:39:12,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:39:12,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:39:12,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:39:12,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:39:12,065 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-19 07:39:12,065 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-19 07:39:12,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:39:12,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:39:12,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:39:12,067 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 07:39:12,421 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:39:12,423 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:39:12,750 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:39:12,879 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:39:12,879 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:39:12,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:12 BoogieIcfgContainer [2023-11-19 07:39:12,884 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:39:12,887 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:39:12,888 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:39:12,895 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:39:12,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:39:10" (1/3) ... [2023-11-19 07:39:12,896 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66470faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:12, skipping insertion in model container [2023-11-19 07:39:12,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:11" (2/3) ... [2023-11-19 07:39:12,896 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66470faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:12, skipping insertion in model container [2023-11-19 07:39:12,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:12" (3/3) ... [2023-11-19 07:39:12,900 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2023-11-19 07:39:12,910 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:39:12,918 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:39:12,918 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 07:39:12,918 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:39:13,006 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 07:39:13,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 195 transitions, 404 flow [2023-11-19 07:39:13,211 INFO L124 PetriNetUnfolderBase]: 14/249 cut-off events. [2023-11-19 07:39:13,212 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:39:13,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 249 events. 14/249 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 518 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 124. Up to 4 conditions per place. [2023-11-19 07:39:13,220 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 195 transitions, 404 flow [2023-11-19 07:39:13,229 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 150 transitions, 309 flow [2023-11-19 07:39:13,239 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:39:13,260 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 150 transitions, 309 flow [2023-11-19 07:39:13,262 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 150 transitions, 309 flow [2023-11-19 07:39:13,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 150 transitions, 309 flow [2023-11-19 07:39:13,319 INFO L124 PetriNetUnfolderBase]: 4/150 cut-off events. [2023-11-19 07:39:13,320 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:39:13,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 150 events. 4/150 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 206 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2023-11-19 07:39:13,326 INFO L119 LiptonReduction]: Number of co-enabled transitions 5436 [2023-11-19 07:39:22,839 INFO L134 LiptonReduction]: Checked pairs total: 11846 [2023-11-19 07:39:22,839 INFO L136 LiptonReduction]: Total number of compositions: 142 [2023-11-19 07:39:22,868 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:39:22,878 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;@6d3c26c7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:39:22,878 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-19 07:39:22,894 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:39:22,895 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-11-19 07:39:22,895 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:39:22,895 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:22,897 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:39:22,897 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 07:39:22,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:22,904 INFO L85 PathProgramCache]: Analyzing trace with hash 693376841, now seen corresponding path program 1 times [2023-11-19 07:39:22,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:22,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232564435] [2023-11-19 07:39:22,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:22,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:23,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:24,179 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 07:39:24,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:24,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232564435] [2023-11-19 07:39:24,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232564435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:24,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:24,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:24,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833456470] [2023-11-19 07:39:24,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:24,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:39:24,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:24,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:39:24,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:39:24,473 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 337 [2023-11-19 07:39:24,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 71 flow. Second operand has 5 states, 5 states have (on average 155.0) internal successors, (775), 5 states have internal predecessors, (775), 0 states have call successors, (0), 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 07:39:24,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:24,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 337 [2023-11-19 07:39:24,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:24,738 INFO L124 PetriNetUnfolderBase]: 215/414 cut-off events. [2023-11-19 07:39:24,738 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-19 07:39:24,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 850 conditions, 414 events. 215/414 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1510 event pairs, 210 based on Foata normal form. 0/336 useless extension candidates. Maximal degree in co-relation 772. Up to 402 conditions per place. [2023-11-19 07:39:24,744 INFO L140 encePairwiseOnDemand]: 328/337 looper letters, 24 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2023-11-19 07:39:24,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 139 flow [2023-11-19 07:39:24,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:39:24,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:39:24,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2023-11-19 07:39:24,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4742828882294758 [2023-11-19 07:39:24,768 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2023-11-19 07:39:24,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2023-11-19 07:39:24,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:24,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2023-11-19 07:39:24,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 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 07:39:24,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 0 states have call successors, (0), 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 07:39:24,800 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 0 states have call successors, (0), 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 07:39:24,802 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 71 flow. Second operand 6 states and 959 transitions. [2023-11-19 07:39:24,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 139 flow [2023-11-19 07:39:24,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 33 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:39:24,810 INFO L231 Difference]: Finished difference. Result has 38 places, 32 transitions, 105 flow [2023-11-19 07:39:24,812 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=105, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2023-11-19 07:39:24,817 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 1 predicate places. [2023-11-19 07:39:24,817 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 105 flow [2023-11-19 07:39:24,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 155.0) internal successors, (775), 5 states have internal predecessors, (775), 0 states have call successors, (0), 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 07:39:24,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:24,819 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:39:24,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:39:24,819 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:39:24,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:24,820 INFO L85 PathProgramCache]: Analyzing trace with hash 19718827, now seen corresponding path program 1 times [2023-11-19 07:39:24,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:24,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315047962] [2023-11-19 07:39:24,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:24,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:25,733 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 07:39:25,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:25,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315047962] [2023-11-19 07:39:25,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315047962] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:25,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:25,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:39:25,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010532118] [2023-11-19 07:39:25,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:25,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:39:25,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:25,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:39:25,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:39:25,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-19 07:39:25,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 105 flow. Second operand has 6 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 0 states have call successors, (0), 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 07:39:25,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:25,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-19 07:39:25,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:26,197 INFO L124 PetriNetUnfolderBase]: 236/450 cut-off events. [2023-11-19 07:39:26,197 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-11-19 07:39:26,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1034 conditions, 450 events. 236/450 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1706 event pairs, 70 based on Foata normal form. 5/394 useless extension candidates. Maximal degree in co-relation 833. Up to 396 conditions per place. [2023-11-19 07:39:26,202 INFO L140 encePairwiseOnDemand]: 327/337 looper letters, 34 selfloop transitions, 21 changer transitions 0/56 dead transitions. [2023-11-19 07:39:26,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 56 transitions, 283 flow [2023-11-19 07:39:26,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:39:26,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 07:39:26,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1278 transitions. [2023-11-19 07:39:26,208 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47403560830860536 [2023-11-19 07:39:26,208 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1278 transitions. [2023-11-19 07:39:26,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1278 transitions. [2023-11-19 07:39:26,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:26,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1278 transitions. [2023-11-19 07:39:26,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 159.75) internal successors, (1278), 8 states have internal predecessors, (1278), 0 states have call successors, (0), 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 07:39:26,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 337.0) internal successors, (3033), 9 states have internal predecessors, (3033), 0 states have call successors, (0), 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 07:39:26,223 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 337.0) internal successors, (3033), 9 states have internal predecessors, (3033), 0 states have call successors, (0), 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 07:39:26,223 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 105 flow. Second operand 8 states and 1278 transitions. [2023-11-19 07:39:26,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 56 transitions, 283 flow [2023-11-19 07:39:26,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 56 transitions, 281 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:39:26,228 INFO L231 Difference]: Finished difference. Result has 47 places, 46 transitions, 224 flow [2023-11-19 07:39:26,228 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=224, PETRI_PLACES=47, PETRI_TRANSITIONS=46} [2023-11-19 07:39:26,229 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 10 predicate places. [2023-11-19 07:39:26,229 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 46 transitions, 224 flow [2023-11-19 07:39:26,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 0 states have call successors, (0), 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 07:39:26,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:26,231 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:39:26,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:39:26,231 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 07:39:26,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:26,232 INFO L85 PathProgramCache]: Analyzing trace with hash 19848098, now seen corresponding path program 1 times [2023-11-19 07:39:26,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:26,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529108716] [2023-11-19 07:39:26,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:26,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:26,779 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 07:39:26,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:26,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529108716] [2023-11-19 07:39:26,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529108716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:26,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:26,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:39:26,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079974061] [2023-11-19 07:39:26,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:26,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:39:26,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:26,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:39:26,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:39:26,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-19 07:39:26,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 46 transitions, 224 flow. Second operand has 6 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 0 states have call successors, (0), 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 07:39:26,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:26,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-19 07:39:26,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:27,232 INFO L124 PetriNetUnfolderBase]: 222/426 cut-off events. [2023-11-19 07:39:27,232 INFO L125 PetriNetUnfolderBase]: For 392/392 co-relation queries the response was YES. [2023-11-19 07:39:27,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1251 conditions, 426 events. 222/426 cut-off events. For 392/392 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1577 event pairs, 77 based on Foata normal form. 5/375 useless extension candidates. Maximal degree in co-relation 1063. Up to 350 conditions per place. [2023-11-19 07:39:27,237 INFO L140 encePairwiseOnDemand]: 328/337 looper letters, 36 selfloop transitions, 24 changer transitions 0/61 dead transitions. [2023-11-19 07:39:27,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 61 transitions, 398 flow [2023-11-19 07:39:27,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:39:27,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 07:39:27,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1276 transitions. [2023-11-19 07:39:27,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4732937685459941 [2023-11-19 07:39:27,243 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1276 transitions. [2023-11-19 07:39:27,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1276 transitions. [2023-11-19 07:39:27,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:27,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1276 transitions. [2023-11-19 07:39:27,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 159.5) internal successors, (1276), 8 states have internal predecessors, (1276), 0 states have call successors, (0), 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 07:39:27,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 337.0) internal successors, (3033), 9 states have internal predecessors, (3033), 0 states have call successors, (0), 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 07:39:27,258 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 337.0) internal successors, (3033), 9 states have internal predecessors, (3033), 0 states have call successors, (0), 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 07:39:27,259 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 224 flow. Second operand 8 states and 1276 transitions. [2023-11-19 07:39:27,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 61 transitions, 398 flow [2023-11-19 07:39:27,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 61 transitions, 376 flow, removed 10 selfloop flow, removed 1 redundant places. [2023-11-19 07:39:27,265 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 292 flow [2023-11-19 07:39:27,265 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=292, PETRI_PLACES=54, PETRI_TRANSITIONS=51} [2023-11-19 07:39:27,266 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 17 predicate places. [2023-11-19 07:39:27,266 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 51 transitions, 292 flow [2023-11-19 07:39:27,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 0 states have call successors, (0), 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 07:39:27,267 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:27,267 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:27,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:39:27,268 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:39:27,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:27,269 INFO L85 PathProgramCache]: Analyzing trace with hash 607620799, now seen corresponding path program 1 times [2023-11-19 07:39:27,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:27,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774473061] [2023-11-19 07:39:27,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:27,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:27,772 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 07:39:27,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:27,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774473061] [2023-11-19 07:39:27,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774473061] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:27,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:27,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:39:27,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647355570] [2023-11-19 07:39:27,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:27,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:39:27,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:27,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:39:27,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:39:27,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-19 07:39:27,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 51 transitions, 292 flow. Second operand has 6 states, 6 states have (on average 154.16666666666666) internal successors, (925), 6 states have internal predecessors, (925), 0 states have call successors, (0), 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 07:39:27,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:27,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-19 07:39:27,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:28,158 INFO L124 PetriNetUnfolderBase]: 210/406 cut-off events. [2023-11-19 07:39:28,159 INFO L125 PetriNetUnfolderBase]: For 419/419 co-relation queries the response was YES. [2023-11-19 07:39:28,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1237 conditions, 406 events. 210/406 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1465 event pairs, 125 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 1025. Up to 356 conditions per place. [2023-11-19 07:39:28,164 INFO L140 encePairwiseOnDemand]: 328/337 looper letters, 41 selfloop transitions, 29 changer transitions 0/71 dead transitions. [2023-11-19 07:39:28,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 71 transitions, 558 flow [2023-11-19 07:39:28,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:39:28,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 07:39:28,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1274 transitions. [2023-11-19 07:39:28,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4725519287833828 [2023-11-19 07:39:28,169 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1274 transitions. [2023-11-19 07:39:28,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1274 transitions. [2023-11-19 07:39:28,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:28,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1274 transitions. [2023-11-19 07:39:28,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 159.25) internal successors, (1274), 8 states have internal predecessors, (1274), 0 states have call successors, (0), 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 07:39:28,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 337.0) internal successors, (3033), 9 states have internal predecessors, (3033), 0 states have call successors, (0), 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 07:39:28,182 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 337.0) internal successors, (3033), 9 states have internal predecessors, (3033), 0 states have call successors, (0), 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 07:39:28,182 INFO L175 Difference]: Start difference. First operand has 54 places, 51 transitions, 292 flow. Second operand 8 states and 1274 transitions. [2023-11-19 07:39:28,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 71 transitions, 558 flow [2023-11-19 07:39:28,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 71 transitions, 538 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-11-19 07:39:28,188 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 443 flow [2023-11-19 07:39:28,188 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=443, PETRI_PLACES=61, PETRI_TRANSITIONS=65} [2023-11-19 07:39:28,189 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 24 predicate places. [2023-11-19 07:39:28,190 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 443 flow [2023-11-19 07:39:28,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.16666666666666) internal successors, (925), 6 states have internal predecessors, (925), 0 states have call successors, (0), 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 07:39:28,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:28,191 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:28,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:39:28,191 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:39:28,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:28,192 INFO L85 PathProgramCache]: Analyzing trace with hash -973290500, now seen corresponding path program 1 times [2023-11-19 07:39:28,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:28,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357890760] [2023-11-19 07:39:28,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:28,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:29,283 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 07:39:29,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:29,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357890760] [2023-11-19 07:39:29,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357890760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:29,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:29,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:39:29,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453247848] [2023-11-19 07:39:29,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:29,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:39:29,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:29,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:39:29,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:39:29,749 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 337 [2023-11-19 07:39:29,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 443 flow. Second operand has 9 states, 9 states have (on average 152.0) internal successors, (1368), 9 states have internal predecessors, (1368), 0 states have call successors, (0), 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 07:39:29,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:29,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 337 [2023-11-19 07:39:29,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:30,299 INFO L124 PetriNetUnfolderBase]: 258/486 cut-off events. [2023-11-19 07:39:30,299 INFO L125 PetriNetUnfolderBase]: For 559/559 co-relation queries the response was YES. [2023-11-19 07:39:30,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1601 conditions, 486 events. 258/486 cut-off events. For 559/559 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1871 event pairs, 74 based on Foata normal form. 8/460 useless extension candidates. Maximal degree in co-relation 1377. Up to 360 conditions per place. [2023-11-19 07:39:30,305 INFO L140 encePairwiseOnDemand]: 326/337 looper letters, 64 selfloop transitions, 46 changer transitions 0/111 dead transitions. [2023-11-19 07:39:30,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 111 transitions, 943 flow [2023-11-19 07:39:30,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:39:30,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:39:30,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1577 transitions. [2023-11-19 07:39:30,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4679525222551929 [2023-11-19 07:39:30,312 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1577 transitions. [2023-11-19 07:39:30,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1577 transitions. [2023-11-19 07:39:30,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:30,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1577 transitions. [2023-11-19 07:39:30,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 157.7) internal successors, (1577), 10 states have internal predecessors, (1577), 0 states have call successors, (0), 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 07:39:30,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 0 states have call successors, (0), 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 07:39:30,327 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 0 states have call successors, (0), 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 07:39:30,328 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 443 flow. Second operand 10 states and 1577 transitions. [2023-11-19 07:39:30,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 111 transitions, 943 flow [2023-11-19 07:39:30,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 111 transitions, 935 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-11-19 07:39:30,337 INFO L231 Difference]: Finished difference. Result has 75 places, 95 transitions, 810 flow [2023-11-19 07:39:30,337 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=810, PETRI_PLACES=75, PETRI_TRANSITIONS=95} [2023-11-19 07:39:30,340 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 38 predicate places. [2023-11-19 07:39:30,340 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 95 transitions, 810 flow [2023-11-19 07:39:30,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.0) internal successors, (1368), 9 states have internal predecessors, (1368), 0 states have call successors, (0), 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 07:39:30,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:30,341 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:30,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:39:30,342 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:39:30,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:30,343 INFO L85 PathProgramCache]: Analyzing trace with hash -189788374, now seen corresponding path program 2 times [2023-11-19 07:39:30,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:30,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910835748] [2023-11-19 07:39:30,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:30,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:31,118 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 07:39:31,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:31,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910835748] [2023-11-19 07:39:31,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910835748] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:31,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:31,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:39:31,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778657515] [2023-11-19 07:39:31,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:31,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:39:31,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:31,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:39:31,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:39:31,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 337 [2023-11-19 07:39:31,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 95 transitions, 810 flow. Second operand has 9 states, 9 states have (on average 152.0) internal successors, (1368), 9 states have internal predecessors, (1368), 0 states have call successors, (0), 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 07:39:31,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:31,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 337 [2023-11-19 07:39:31,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:32,078 INFO L124 PetriNetUnfolderBase]: 297/551 cut-off events. [2023-11-19 07:39:32,079 INFO L125 PetriNetUnfolderBase]: For 1237/1237 co-relation queries the response was YES. [2023-11-19 07:39:32,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2190 conditions, 551 events. 297/551 cut-off events. For 1237/1237 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2221 event pairs, 86 based on Foata normal form. 8/521 useless extension candidates. Maximal degree in co-relation 1941. Up to 442 conditions per place. [2023-11-19 07:39:32,086 INFO L140 encePairwiseOnDemand]: 325/337 looper letters, 69 selfloop transitions, 51 changer transitions 0/121 dead transitions. [2023-11-19 07:39:32,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 121 transitions, 1256 flow [2023-11-19 07:39:32,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:39:32,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-19 07:39:32,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1876 transitions. [2023-11-19 07:39:32,096 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4638971315529179 [2023-11-19 07:39:32,096 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1876 transitions. [2023-11-19 07:39:32,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1876 transitions. [2023-11-19 07:39:32,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:32,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1876 transitions. [2023-11-19 07:39:32,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 156.33333333333334) internal successors, (1876), 12 states have internal predecessors, (1876), 0 states have call successors, (0), 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 07:39:32,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 337.0) internal successors, (4381), 13 states have internal predecessors, (4381), 0 states have call successors, (0), 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 07:39:32,120 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 337.0) internal successors, (4381), 13 states have internal predecessors, (4381), 0 states have call successors, (0), 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 07:39:32,120 INFO L175 Difference]: Start difference. First operand has 75 places, 95 transitions, 810 flow. Second operand 12 states and 1876 transitions. [2023-11-19 07:39:32,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 121 transitions, 1256 flow [2023-11-19 07:39:32,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 121 transitions, 1214 flow, removed 16 selfloop flow, removed 2 redundant places. [2023-11-19 07:39:32,135 INFO L231 Difference]: Finished difference. Result has 88 places, 109 transitions, 1078 flow [2023-11-19 07:39:32,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1078, PETRI_PLACES=88, PETRI_TRANSITIONS=109} [2023-11-19 07:39:32,138 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 51 predicate places. [2023-11-19 07:39:32,143 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 109 transitions, 1078 flow [2023-11-19 07:39:32,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.0) internal successors, (1368), 9 states have internal predecessors, (1368), 0 states have call successors, (0), 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 07:39:32,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:32,145 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:32,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:39:32,145 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:39:32,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:32,145 INFO L85 PathProgramCache]: Analyzing trace with hash -196898224, now seen corresponding path program 3 times [2023-11-19 07:39:32,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:32,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449567386] [2023-11-19 07:39:32,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:32,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:32,926 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 07:39:32,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:32,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449567386] [2023-11-19 07:39:32,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449567386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:32,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:32,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:39:32,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639323325] [2023-11-19 07:39:32,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:32,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:39:32,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:32,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:39:32,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:39:33,340 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 337 [2023-11-19 07:39:33,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 109 transitions, 1078 flow. Second operand has 9 states, 9 states have (on average 152.0) internal successors, (1368), 9 states have internal predecessors, (1368), 0 states have call successors, (0), 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 07:39:33,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:33,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 337 [2023-11-19 07:39:33,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:34,076 INFO L124 PetriNetUnfolderBase]: 273/511 cut-off events. [2023-11-19 07:39:34,076 INFO L125 PetriNetUnfolderBase]: For 1152/1152 co-relation queries the response was YES. [2023-11-19 07:39:34,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2115 conditions, 511 events. 273/511 cut-off events. For 1152/1152 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1990 event pairs, 53 based on Foata normal form. 8/493 useless extension candidates. Maximal degree in co-relation 1964. Up to 386 conditions per place. [2023-11-19 07:39:34,084 INFO L140 encePairwiseOnDemand]: 325/337 looper letters, 67 selfloop transitions, 67 changer transitions 2/137 dead transitions. [2023-11-19 07:39:34,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 137 transitions, 1575 flow [2023-11-19 07:39:34,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-19 07:39:34,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-19 07:39:34,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2496 transitions. [2023-11-19 07:39:34,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4629080118694362 [2023-11-19 07:39:34,096 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2496 transitions. [2023-11-19 07:39:34,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2496 transitions. [2023-11-19 07:39:34,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:34,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2496 transitions. [2023-11-19 07:39:34,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 156.0) internal successors, (2496), 16 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:34,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 337.0) internal successors, (5729), 17 states have internal predecessors, (5729), 0 states have call successors, (0), 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 07:39:34,122 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 337.0) internal successors, (5729), 17 states have internal predecessors, (5729), 0 states have call successors, (0), 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 07:39:34,122 INFO L175 Difference]: Start difference. First operand has 88 places, 109 transitions, 1078 flow. Second operand 16 states and 2496 transitions. [2023-11-19 07:39:34,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 137 transitions, 1575 flow [2023-11-19 07:39:34,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 137 transitions, 1467 flow, removed 9 selfloop flow, removed 7 redundant places. [2023-11-19 07:39:34,137 INFO L231 Difference]: Finished difference. Result has 102 places, 124 transitions, 1352 flow [2023-11-19 07:39:34,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1352, PETRI_PLACES=102, PETRI_TRANSITIONS=124} [2023-11-19 07:39:34,138 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 65 predicate places. [2023-11-19 07:39:34,138 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 124 transitions, 1352 flow [2023-11-19 07:39:34,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.0) internal successors, (1368), 9 states have internal predecessors, (1368), 0 states have call successors, (0), 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 07:39:34,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:34,140 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:34,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:39:34,140 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:39:34,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:34,141 INFO L85 PathProgramCache]: Analyzing trace with hash -189748386, now seen corresponding path program 1 times [2023-11-19 07:39:34,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:34,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149883357] [2023-11-19 07:39:34,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:34,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:34,929 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 07:39:34,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:34,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149883357] [2023-11-19 07:39:34,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149883357] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:34,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:34,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:39:34,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056505650] [2023-11-19 07:39:34,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:34,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:39:34,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:34,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:39:34,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:39:35,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 337 [2023-11-19 07:39:35,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 124 transitions, 1352 flow. Second operand has 9 states, 9 states have (on average 152.0) internal successors, (1368), 9 states have internal predecessors, (1368), 0 states have call successors, (0), 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 07:39:35,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:35,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 337 [2023-11-19 07:39:35,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:36,247 INFO L124 PetriNetUnfolderBase]: 237/445 cut-off events. [2023-11-19 07:39:36,247 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-11-19 07:39:36,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2026 conditions, 445 events. 237/445 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1702 event pairs, 26 based on Foata normal form. 4/427 useless extension candidates. Maximal degree in co-relation 1889. Up to 316 conditions per place. [2023-11-19 07:39:36,257 INFO L140 encePairwiseOnDemand]: 324/337 looper letters, 60 selfloop transitions, 91 changer transitions 0/152 dead transitions. [2023-11-19 07:39:36,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 152 transitions, 1859 flow [2023-11-19 07:39:36,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-19 07:39:36,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-19 07:39:36,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2958 transitions. [2023-11-19 07:39:36,270 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4619709511166641 [2023-11-19 07:39:36,270 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2958 transitions. [2023-11-19 07:39:36,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2958 transitions. [2023-11-19 07:39:36,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:36,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2958 transitions. [2023-11-19 07:39:36,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 155.68421052631578) internal successors, (2958), 19 states have internal predecessors, (2958), 0 states have call successors, (0), 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 07:39:36,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 337.0) internal successors, (6740), 20 states have internal predecessors, (6740), 0 states have call successors, (0), 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 07:39:36,308 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 337.0) internal successors, (6740), 20 states have internal predecessors, (6740), 0 states have call successors, (0), 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 07:39:36,316 INFO L175 Difference]: Start difference. First operand has 102 places, 124 transitions, 1352 flow. Second operand 19 states and 2958 transitions. [2023-11-19 07:39:36,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 152 transitions, 1859 flow [2023-11-19 07:39:36,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 152 transitions, 1718 flow, removed 20 selfloop flow, removed 9 redundant places. [2023-11-19 07:39:36,333 INFO L231 Difference]: Finished difference. Result has 114 places, 138 transitions, 1564 flow [2023-11-19 07:39:36,333 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=1230, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1564, PETRI_PLACES=114, PETRI_TRANSITIONS=138} [2023-11-19 07:39:36,334 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 77 predicate places. [2023-11-19 07:39:36,334 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 138 transitions, 1564 flow [2023-11-19 07:39:36,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.0) internal successors, (1368), 9 states have internal predecessors, (1368), 0 states have call successors, (0), 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 07:39:36,336 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:36,336 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:36,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:39:36,336 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:39:36,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:36,337 INFO L85 PathProgramCache]: Analyzing trace with hash -196938216, now seen corresponding path program 2 times [2023-11-19 07:39:36,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:36,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313941540] [2023-11-19 07:39:36,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:36,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:37,124 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 07:39:37,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:37,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313941540] [2023-11-19 07:39:37,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313941540] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:37,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:37,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:39:37,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234963513] [2023-11-19 07:39:37,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:37,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:39:37,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:37,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:39:37,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:39:37,524 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 337 [2023-11-19 07:39:37,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 138 transitions, 1564 flow. Second operand has 9 states, 9 states have (on average 152.0) internal successors, (1368), 9 states have internal predecessors, (1368), 0 states have call successors, (0), 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 07:39:37,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:37,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 337 [2023-11-19 07:39:37,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:38,200 INFO L124 PetriNetUnfolderBase]: 225/425 cut-off events. [2023-11-19 07:39:38,200 INFO L125 PetriNetUnfolderBase]: For 1346/1346 co-relation queries the response was YES. [2023-11-19 07:39:38,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2111 conditions, 425 events. 225/425 cut-off events. For 1346/1346 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1618 event pairs, 46 based on Foata normal form. 4/411 useless extension candidates. Maximal degree in co-relation 2008. Up to 320 conditions per place. [2023-11-19 07:39:38,207 INFO L140 encePairwiseOnDemand]: 324/337 looper letters, 77 selfloop transitions, 72 changer transitions 0/150 dead transitions. [2023-11-19 07:39:38,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 150 transitions, 1936 flow [2023-11-19 07:39:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-19 07:39:38,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-19 07:39:38,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2497 transitions. [2023-11-19 07:39:38,218 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46309347181008903 [2023-11-19 07:39:38,218 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2497 transitions. [2023-11-19 07:39:38,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2497 transitions. [2023-11-19 07:39:38,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:38,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2497 transitions. [2023-11-19 07:39:38,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 156.0625) internal successors, (2497), 16 states have internal predecessors, (2497), 0 states have call successors, (0), 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 07:39:38,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 337.0) internal successors, (5729), 17 states have internal predecessors, (5729), 0 states have call successors, (0), 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 07:39:38,243 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 337.0) internal successors, (5729), 17 states have internal predecessors, (5729), 0 states have call successors, (0), 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 07:39:38,243 INFO L175 Difference]: Start difference. First operand has 114 places, 138 transitions, 1564 flow. Second operand 16 states and 2497 transitions. [2023-11-19 07:39:38,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 150 transitions, 1936 flow [2023-11-19 07:39:38,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 150 transitions, 1761 flow, removed 10 selfloop flow, removed 11 redundant places. [2023-11-19 07:39:38,260 INFO L231 Difference]: Finished difference. Result has 119 places, 138 transitions, 1548 flow [2023-11-19 07:39:38,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=1389, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1548, PETRI_PLACES=119, PETRI_TRANSITIONS=138} [2023-11-19 07:39:38,262 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 82 predicate places. [2023-11-19 07:39:38,262 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 138 transitions, 1548 flow [2023-11-19 07:39:38,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.0) internal successors, (1368), 9 states have internal predecessors, (1368), 0 states have call successors, (0), 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 07:39:38,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:38,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:38,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:39:38,264 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 07:39:38,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:38,264 INFO L85 PathProgramCache]: Analyzing trace with hash -973290502, now seen corresponding path program 3 times [2023-11-19 07:39:38,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:38,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680902436] [2023-11-19 07:39:38,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:38,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:38,966 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 07:39:38,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:38,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680902436] [2023-11-19 07:39:38,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680902436] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:38,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:38,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:39:38,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632304623] [2023-11-19 07:39:38,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:38,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:39:38,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:38,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:39:38,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:39:39,355 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 337 [2023-11-19 07:39:39,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 138 transitions, 1548 flow. Second operand has 9 states, 9 states have (on average 152.0) internal successors, (1368), 9 states have internal predecessors, (1368), 0 states have call successors, (0), 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 07:39:39,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:39,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 337 [2023-11-19 07:39:39,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:39,984 INFO L124 PetriNetUnfolderBase]: 260/487 cut-off events. [2023-11-19 07:39:39,984 INFO L125 PetriNetUnfolderBase]: For 1620/1620 co-relation queries the response was YES. [2023-11-19 07:39:39,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2414 conditions, 487 events. 260/487 cut-off events. For 1620/1620 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1925 event pairs, 40 based on Foata normal form. 4/473 useless extension candidates. Maximal degree in co-relation 2156. Up to 361 conditions per place. [2023-11-19 07:39:39,991 INFO L140 encePairwiseOnDemand]: 324/337 looper letters, 101 selfloop transitions, 74 changer transitions 0/176 dead transitions. [2023-11-19 07:39:39,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 176 transitions, 2229 flow [2023-11-19 07:39:39,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:39:39,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-19 07:39:39,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2043 transitions. [2023-11-19 07:39:39,998 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46633188769687284 [2023-11-19 07:39:39,998 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2043 transitions. [2023-11-19 07:39:39,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2043 transitions. [2023-11-19 07:39:40,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:40,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2043 transitions. [2023-11-19 07:39:40,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 157.15384615384616) internal successors, (2043), 13 states have internal predecessors, (2043), 0 states have call successors, (0), 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 07:39:40,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 337.0) internal successors, (4718), 14 states have internal predecessors, (4718), 0 states have call successors, (0), 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 07:39:40,021 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 337.0) internal successors, (4718), 14 states have internal predecessors, (4718), 0 states have call successors, (0), 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 07:39:40,021 INFO L175 Difference]: Start difference. First operand has 119 places, 138 transitions, 1548 flow. Second operand 13 states and 2043 transitions. [2023-11-19 07:39:40,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 176 transitions, 2229 flow [2023-11-19 07:39:40,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 176 transitions, 2026 flow, removed 8 selfloop flow, removed 12 redundant places. [2023-11-19 07:39:40,047 INFO L231 Difference]: Finished difference. Result has 125 places, 160 transitions, 1842 flow [2023-11-19 07:39:40,048 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=1370, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1842, PETRI_PLACES=125, PETRI_TRANSITIONS=160} [2023-11-19 07:39:40,050 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 88 predicate places. [2023-11-19 07:39:40,050 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 160 transitions, 1842 flow [2023-11-19 07:39:40,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.0) internal successors, (1368), 9 states have internal predecessors, (1368), 0 states have call successors, (0), 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 07:39:40,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:40,051 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:40,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:39:40,051 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 07:39:40,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:40,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1411841678, now seen corresponding path program 4 times [2023-11-19 07:39:40,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:40,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499598398] [2023-11-19 07:39:40,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:40,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,779 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 07:39:40,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:40,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499598398] [2023-11-19 07:39:40,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499598398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:40,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:40,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:39:40,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930625384] [2023-11-19 07:39:40,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:40,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:39:40,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:40,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:39:40,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:39:41,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 337 [2023-11-19 07:39:41,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 160 transitions, 1842 flow. Second operand has 9 states, 9 states have (on average 152.0) internal successors, (1368), 9 states have internal predecessors, (1368), 0 states have call successors, (0), 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 07:39:41,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:41,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 337 [2023-11-19 07:39:41,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:41,853 INFO L124 PetriNetUnfolderBase]: 248/467 cut-off events. [2023-11-19 07:39:41,854 INFO L125 PetriNetUnfolderBase]: For 1810/1810 co-relation queries the response was YES. [2023-11-19 07:39:41,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2412 conditions, 467 events. 248/467 cut-off events. For 1810/1810 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1821 event pairs, 35 based on Foata normal form. 4/457 useless extension candidates. Maximal degree in co-relation 2180. Up to 308 conditions per place. [2023-11-19 07:39:41,861 INFO L140 encePairwiseOnDemand]: 325/337 looper letters, 87 selfloop transitions, 88 changer transitions 0/176 dead transitions. [2023-11-19 07:39:41,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 176 transitions, 2291 flow [2023-11-19 07:39:41,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:39:41,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-19 07:39:41,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2043 transitions. [2023-11-19 07:39:41,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46633188769687284 [2023-11-19 07:39:41,867 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2043 transitions. [2023-11-19 07:39:41,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2043 transitions. [2023-11-19 07:39:41,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:41,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2043 transitions. [2023-11-19 07:39:41,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 157.15384615384616) internal successors, (2043), 13 states have internal predecessors, (2043), 0 states have call successors, (0), 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 07:39:41,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 337.0) internal successors, (4718), 14 states have internal predecessors, (4718), 0 states have call successors, (0), 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 07:39:41,883 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 337.0) internal successors, (4718), 14 states have internal predecessors, (4718), 0 states have call successors, (0), 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 07:39:41,883 INFO L175 Difference]: Start difference. First operand has 125 places, 160 transitions, 1842 flow. Second operand 13 states and 2043 transitions. [2023-11-19 07:39:41,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 176 transitions, 2291 flow [2023-11-19 07:39:41,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 176 transitions, 2198 flow, removed 17 selfloop flow, removed 5 redundant places. [2023-11-19 07:39:41,909 INFO L231 Difference]: Finished difference. Result has 134 places, 162 transitions, 1989 flow [2023-11-19 07:39:41,909 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=1751, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1989, PETRI_PLACES=134, PETRI_TRANSITIONS=162} [2023-11-19 07:39:41,910 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 97 predicate places. [2023-11-19 07:39:41,910 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 162 transitions, 1989 flow [2023-11-19 07:39:41,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.0) internal successors, (1368), 9 states have internal predecessors, (1368), 0 states have call successors, (0), 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 07:39:41,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:41,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:41,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:39:41,912 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 07:39:41,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:41,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1999807199, now seen corresponding path program 1 times [2023-11-19 07:39:41,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:41,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88965850] [2023-11-19 07:39:41,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:41,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:42,419 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 07:39:42,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:42,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88965850] [2023-11-19 07:39:42,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88965850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:42,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:42,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:39:42,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818283459] [2023-11-19 07:39:42,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:42,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:39:42,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:42,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:39:42,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:39:42,664 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 337 [2023-11-19 07:39:42,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 162 transitions, 1989 flow. Second operand has 7 states, 7 states have (on average 155.57142857142858) internal successors, (1089), 7 states have internal predecessors, (1089), 0 states have call successors, (0), 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 07:39:42,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:42,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 337 [2023-11-19 07:39:42,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:43,393 INFO L124 PetriNetUnfolderBase]: 292/587 cut-off events. [2023-11-19 07:39:43,393 INFO L125 PetriNetUnfolderBase]: For 2414/2414 co-relation queries the response was YES. [2023-11-19 07:39:43,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2939 conditions, 587 events. 292/587 cut-off events. For 2414/2414 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2566 event pairs, 32 based on Foata normal form. 0/568 useless extension candidates. Maximal degree in co-relation 2641. Up to 172 conditions per place. [2023-11-19 07:39:43,403 INFO L140 encePairwiseOnDemand]: 326/337 looper letters, 152 selfloop transitions, 81 changer transitions 6/240 dead transitions. [2023-11-19 07:39:43,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 240 transitions, 2838 flow [2023-11-19 07:39:43,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:39:43,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-19 07:39:43,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2124 transitions. [2023-11-19 07:39:43,409 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48482081716503084 [2023-11-19 07:39:43,410 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2124 transitions. [2023-11-19 07:39:43,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2124 transitions. [2023-11-19 07:39:43,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:43,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2124 transitions. [2023-11-19 07:39:43,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 163.3846153846154) internal successors, (2124), 13 states have internal predecessors, (2124), 0 states have call successors, (0), 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 07:39:43,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 337.0) internal successors, (4718), 14 states have internal predecessors, (4718), 0 states have call successors, (0), 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 07:39:43,427 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 337.0) internal successors, (4718), 14 states have internal predecessors, (4718), 0 states have call successors, (0), 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 07:39:43,427 INFO L175 Difference]: Start difference. First operand has 134 places, 162 transitions, 1989 flow. Second operand 13 states and 2124 transitions. [2023-11-19 07:39:43,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 240 transitions, 2838 flow [2023-11-19 07:39:43,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 240 transitions, 2616 flow, removed 18 selfloop flow, removed 12 redundant places. [2023-11-19 07:39:43,456 INFO L231 Difference]: Finished difference. Result has 137 places, 180 transitions, 2130 flow [2023-11-19 07:39:43,457 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=1787, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2130, PETRI_PLACES=137, PETRI_TRANSITIONS=180} [2023-11-19 07:39:43,458 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 100 predicate places. [2023-11-19 07:39:43,458 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 180 transitions, 2130 flow [2023-11-19 07:39:43,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 155.57142857142858) internal successors, (1089), 7 states have internal predecessors, (1089), 0 states have call successors, (0), 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 07:39:43,459 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:43,459 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:43,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:39:43,460 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 07:39:43,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:43,460 INFO L85 PathProgramCache]: Analyzing trace with hash 423091309, now seen corresponding path program 2 times [2023-11-19 07:39:43,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:43,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113849436] [2023-11-19 07:39:43,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:43,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:43,998 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 07:39:43,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:43,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113849436] [2023-11-19 07:39:43,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113849436] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:43,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:43,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:39:43,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114897949] [2023-11-19 07:39:43,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:43,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:39:44,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:44,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:39:44,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:39:44,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 337 [2023-11-19 07:39:44,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 180 transitions, 2130 flow. Second operand has 7 states, 7 states have (on average 155.57142857142858) internal successors, (1089), 7 states have internal predecessors, (1089), 0 states have call successors, (0), 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 07:39:44,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:44,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 337 [2023-11-19 07:39:44,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:45,046 INFO L124 PetriNetUnfolderBase]: 371/768 cut-off events. [2023-11-19 07:39:45,046 INFO L125 PetriNetUnfolderBase]: For 4505/4505 co-relation queries the response was YES. [2023-11-19 07:39:45,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3779 conditions, 768 events. 371/768 cut-off events. For 4505/4505 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3766 event pairs, 49 based on Foata normal form. 9/777 useless extension candidates. Maximal degree in co-relation 3425. Up to 162 conditions per place. [2023-11-19 07:39:45,058 INFO L140 encePairwiseOnDemand]: 326/337 looper letters, 187 selfloop transitions, 85 changer transitions 8/281 dead transitions. [2023-11-19 07:39:45,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 281 transitions, 3191 flow [2023-11-19 07:39:45,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:39:45,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-19 07:39:45,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2464 transitions. [2023-11-19 07:39:45,064 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4874381800197824 [2023-11-19 07:39:45,064 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2464 transitions. [2023-11-19 07:39:45,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2464 transitions. [2023-11-19 07:39:45,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:45,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2464 transitions. [2023-11-19 07:39:45,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 164.26666666666668) internal successors, (2464), 15 states have internal predecessors, (2464), 0 states have call successors, (0), 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 07:39:45,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 337.0) internal successors, (5392), 16 states have internal predecessors, (5392), 0 states have call successors, (0), 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 07:39:45,081 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 337.0) internal successors, (5392), 16 states have internal predecessors, (5392), 0 states have call successors, (0), 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 07:39:45,081 INFO L175 Difference]: Start difference. First operand has 137 places, 180 transitions, 2130 flow. Second operand 15 states and 2464 transitions. [2023-11-19 07:39:45,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 281 transitions, 3191 flow [2023-11-19 07:39:45,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 281 transitions, 3036 flow, removed 32 selfloop flow, removed 5 redundant places. [2023-11-19 07:39:45,122 INFO L231 Difference]: Finished difference. Result has 151 places, 196 transitions, 2383 flow [2023-11-19 07:39:45,123 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=2007, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2383, PETRI_PLACES=151, PETRI_TRANSITIONS=196} [2023-11-19 07:39:45,124 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 114 predicate places. [2023-11-19 07:39:45,124 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 196 transitions, 2383 flow [2023-11-19 07:39:45,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 155.57142857142858) internal successors, (1089), 7 states have internal predecessors, (1089), 0 states have call successors, (0), 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 07:39:45,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:45,125 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:45,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:39:45,126 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 07:39:45,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:45,126 INFO L85 PathProgramCache]: Analyzing trace with hash 419001170, now seen corresponding path program 1 times [2023-11-19 07:39:45,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:45,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501805025] [2023-11-19 07:39:45,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:45,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:45,972 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 07:39:45,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:45,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501805025] [2023-11-19 07:39:45,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501805025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:45,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:45,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:39:45,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789132560] [2023-11-19 07:39:45,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:45,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:39:45,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:45,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:39:45,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:39:46,483 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 337 [2023-11-19 07:39:46,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 196 transitions, 2383 flow. Second operand has 10 states, 10 states have (on average 152.1) internal successors, (1521), 10 states have internal predecessors, (1521), 0 states have call successors, (0), 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 07:39:46,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:46,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 337 [2023-11-19 07:39:46,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:47,502 INFO L124 PetriNetUnfolderBase]: 445/975 cut-off events. [2023-11-19 07:39:47,503 INFO L125 PetriNetUnfolderBase]: For 5976/5976 co-relation queries the response was YES. [2023-11-19 07:39:47,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4848 conditions, 975 events. 445/975 cut-off events. For 5976/5976 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 5367 event pairs, 111 based on Foata normal form. 15/990 useless extension candidates. Maximal degree in co-relation 4536. Up to 485 conditions per place. [2023-11-19 07:39:47,517 INFO L140 encePairwiseOnDemand]: 321/337 looper letters, 145 selfloop transitions, 127 changer transitions 9/282 dead transitions. [2023-11-19 07:39:47,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 282 transitions, 3698 flow [2023-11-19 07:39:47,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-19 07:39:47,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-19 07:39:47,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3590 transitions. [2023-11-19 07:39:47,525 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46316604309121406 [2023-11-19 07:39:47,526 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3590 transitions. [2023-11-19 07:39:47,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3590 transitions. [2023-11-19 07:39:47,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:47,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3590 transitions. [2023-11-19 07:39:47,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 156.08695652173913) internal successors, (3590), 23 states have internal predecessors, (3590), 0 states have call successors, (0), 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 07:39:47,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 337.0) internal successors, (8088), 24 states have internal predecessors, (8088), 0 states have call successors, (0), 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 07:39:47,549 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 337.0) internal successors, (8088), 24 states have internal predecessors, (8088), 0 states have call successors, (0), 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 07:39:47,549 INFO L175 Difference]: Start difference. First operand has 151 places, 196 transitions, 2383 flow. Second operand 23 states and 3590 transitions. [2023-11-19 07:39:47,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 282 transitions, 3698 flow [2023-11-19 07:39:47,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 282 transitions, 3660 flow, removed 15 selfloop flow, removed 2 redundant places. [2023-11-19 07:39:47,601 INFO L231 Difference]: Finished difference. Result has 177 places, 242 transitions, 3228 flow [2023-11-19 07:39:47,602 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=2338, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=3228, PETRI_PLACES=177, PETRI_TRANSITIONS=242} [2023-11-19 07:39:47,603 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 140 predicate places. [2023-11-19 07:39:47,603 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 242 transitions, 3228 flow [2023-11-19 07:39:47,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.1) internal successors, (1521), 10 states have internal predecessors, (1521), 0 states have call successors, (0), 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 07:39:47,604 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:47,604 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:47,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:39:47,604 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 07:39:47,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:47,605 INFO L85 PathProgramCache]: Analyzing trace with hash 419001169, now seen corresponding path program 3 times [2023-11-19 07:39:47,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:47,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217676695] [2023-11-19 07:39:47,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:47,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:48,345 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 07:39:48,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:48,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217676695] [2023-11-19 07:39:48,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217676695] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:48,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:48,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:39:48,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921681153] [2023-11-19 07:39:48,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:48,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:39:48,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:48,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:39:48,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:39:48,947 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 337 [2023-11-19 07:39:48,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 242 transitions, 3228 flow. Second operand has 10 states, 10 states have (on average 150.1) internal successors, (1501), 10 states have internal predecessors, (1501), 0 states have call successors, (0), 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 07:39:48,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:48,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 337 [2023-11-19 07:39:48,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:49,829 INFO L124 PetriNetUnfolderBase]: 435/951 cut-off events. [2023-11-19 07:39:49,829 INFO L125 PetriNetUnfolderBase]: For 6728/6728 co-relation queries the response was YES. [2023-11-19 07:39:49,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5167 conditions, 951 events. 435/951 cut-off events. For 6728/6728 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 5219 event pairs, 112 based on Foata normal form. 5/956 useless extension candidates. Maximal degree in co-relation 4861. Up to 585 conditions per place. [2023-11-19 07:39:49,847 INFO L140 encePairwiseOnDemand]: 324/337 looper letters, 176 selfloop transitions, 95 changer transitions 3/275 dead transitions. [2023-11-19 07:39:49,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 275 transitions, 3945 flow [2023-11-19 07:39:49,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:39:49,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-19 07:39:49,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2326 transitions. [2023-11-19 07:39:49,852 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4601384767556874 [2023-11-19 07:39:49,852 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2326 transitions. [2023-11-19 07:39:49,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2326 transitions. [2023-11-19 07:39:49,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:49,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2326 transitions. [2023-11-19 07:39:49,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 155.06666666666666) internal successors, (2326), 15 states have internal predecessors, (2326), 0 states have call successors, (0), 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 07:39:49,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 337.0) internal successors, (5392), 16 states have internal predecessors, (5392), 0 states have call successors, (0), 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 07:39:49,865 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 337.0) internal successors, (5392), 16 states have internal predecessors, (5392), 0 states have call successors, (0), 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 07:39:49,865 INFO L175 Difference]: Start difference. First operand has 177 places, 242 transitions, 3228 flow. Second operand 15 states and 2326 transitions. [2023-11-19 07:39:49,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 275 transitions, 3945 flow [2023-11-19 07:39:49,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 275 transitions, 3823 flow, removed 23 selfloop flow, removed 7 redundant places. [2023-11-19 07:39:49,924 INFO L231 Difference]: Finished difference. Result has 184 places, 243 transitions, 3311 flow [2023-11-19 07:39:49,925 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=3086, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3311, PETRI_PLACES=184, PETRI_TRANSITIONS=243} [2023-11-19 07:39:49,926 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 147 predicate places. [2023-11-19 07:39:49,926 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 243 transitions, 3311 flow [2023-11-19 07:39:49,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 150.1) internal successors, (1501), 10 states have internal predecessors, (1501), 0 states have call successors, (0), 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 07:39:49,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:49,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:49,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 07:39:49,927 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 07:39:49,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:49,928 INFO L85 PathProgramCache]: Analyzing trace with hash -279128075, now seen corresponding path program 1 times [2023-11-19 07:39:49,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:49,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949277179] [2023-11-19 07:39:49,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:49,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:49,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:50,726 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 07:39:50,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:50,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949277179] [2023-11-19 07:39:50,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949277179] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:50,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:50,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:39:50,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563017230] [2023-11-19 07:39:50,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:50,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:39:50,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:50,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:39:50,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:39:51,245 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 337 [2023-11-19 07:39:51,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 243 transitions, 3311 flow. Second operand has 10 states, 10 states have (on average 152.1) internal successors, (1521), 10 states have internal predecessors, (1521), 0 states have call successors, (0), 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 07:39:51,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:51,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 337 [2023-11-19 07:39:51,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand