./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 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_2fd2e2a1-c81d-47cf-bf9c-79073c66161e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd2e2a1-c81d-47cf-bf9c-79073c66161e/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_2fd2e2a1-c81d-47cf-bf9c-79073c66161e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd2e2a1-c81d-47cf-bf9c-79073c66161e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd2e2a1-c81d-47cf-bf9c-79073c66161e/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_2fd2e2a1-c81d-47cf-bf9c-79073c66161e/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 da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:56:43,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:56:43,744 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd2e2a1-c81d-47cf-bf9c-79073c66161e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:56:43,759 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:56:43,760 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:56:43,802 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:56:43,803 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:56:43,804 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:56:43,805 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:56:43,810 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:56:43,811 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:56:43,812 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:56:43,812 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:56:43,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:56:43,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:56:43,815 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:56:43,815 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:56:43,816 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:56:43,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:56:43,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:56:43,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:56:43,818 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:56:43,819 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:56:43,820 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:56:43,820 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:56:43,821 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:56:43,821 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:56:43,822 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:56:43,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:56:43,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:56:43,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:56:43,825 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:56:43,825 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:56:43,826 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:56:43,826 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:56:43,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:56:43,827 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:56:43,827 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:56:43,827 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:56:43,827 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:56:43,828 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:56:43,828 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_2fd2e2a1-c81d-47cf-bf9c-79073c66161e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd2e2a1-c81d-47cf-bf9c-79073c66161e/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da [2023-11-19 07:56:44,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:56:44,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:56:44,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:56:44,219 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:56:44,220 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:56:44,221 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd2e2a1-c81d-47cf-bf9c-79073c66161e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2023-11-19 07:56:47,368 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:56:47,747 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:56:47,748 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd2e2a1-c81d-47cf-bf9c-79073c66161e/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2023-11-19 07:56:47,779 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd2e2a1-c81d-47cf-bf9c-79073c66161e/bin/uautomizer-verify-uCwYo4JHxu/data/c68de698e/32d02f528e284215aa7029fec0546077/FLAG7bfad8076 [2023-11-19 07:56:47,795 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd2e2a1-c81d-47cf-bf9c-79073c66161e/bin/uautomizer-verify-uCwYo4JHxu/data/c68de698e/32d02f528e284215aa7029fec0546077 [2023-11-19 07:56:47,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:56:47,800 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:56:47,802 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:47,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:56:47,814 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:56:47,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:47" (1/1) ... [2023-11-19 07:56:47,816 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c808ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:47, skipping insertion in model container [2023-11-19 07:56:47,816 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:47" (1/1) ... [2023-11-19 07:56:47,901 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:56:48,145 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:56:49,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:49,155 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:56:49,172 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:56:49,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:49,434 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:56:49,435 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:56:49,435 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:56:49,444 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:56:49,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:49 WrapperNode [2023-11-19 07:56:49,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:49,448 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:49,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:56:49,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:56:49,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:49" (1/1) ... [2023-11-19 07:56:49,500 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:49" (1/1) ... [2023-11-19 07:56:49,548 INFO L138 Inliner]: procedures = 469, calls = 64, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 162 [2023-11-19 07:56:49,553 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:49,554 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:56:49,554 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:56:49,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:56:49,566 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:49" (1/1) ... [2023-11-19 07:56:49,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:49" (1/1) ... [2023-11-19 07:56:49,575 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:49" (1/1) ... [2023-11-19 07:56:49,581 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:49" (1/1) ... [2023-11-19 07:56:49,614 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:49" (1/1) ... [2023-11-19 07:56:49,617 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:49" (1/1) ... [2023-11-19 07:56:49,623 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:49" (1/1) ... [2023-11-19 07:56:49,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:49" (1/1) ... [2023-11-19 07:56:49,635 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:56:49,636 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:56:49,637 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:56:49,637 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:56:49,638 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:49" (1/1) ... [2023-11-19 07:56:49,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:56:49,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd2e2a1-c81d-47cf-bf9c-79073c66161e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:49,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd2e2a1-c81d-47cf-bf9c-79073c66161e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:49,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd2e2a1-c81d-47cf-bf9c-79073c66161e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:56:49,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:56:49,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:56:49,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:56:49,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:56:49,724 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:56:49,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:56:49,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:56:49,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:56:49,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:56:49,727 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-19 07:56:49,727 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-19 07:56:49,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:56:49,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:56:49,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:56:49,729 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 07:56:50,072 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:56:50,075 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:56:50,446 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:56:50,575 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:56:50,575 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:56:50,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:50 BoogieIcfgContainer [2023-11-19 07:56:50,580 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:56:50,583 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:56:50,583 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:56:50,587 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:56:50,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:56:47" (1/3) ... [2023-11-19 07:56:50,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de5e2d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:50, skipping insertion in model container [2023-11-19 07:56:50,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:49" (2/3) ... [2023-11-19 07:56:50,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de5e2d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:50, skipping insertion in model container [2023-11-19 07:56:50,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:50" (3/3) ... [2023-11-19 07:56:50,593 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2023-11-19 07:56:50,604 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:56:50,616 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:56:50,616 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 07:56:50,616 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:56:50,719 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 07:56:50,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 195 transitions, 404 flow [2023-11-19 07:56:50,897 INFO L124 PetriNetUnfolderBase]: 14/253 cut-off events. [2023-11-19 07:56:50,897 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:56:50,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 253 events. 14/253 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 551 event pairs, 0 based on Foata normal form. 0/233 useless extension candidates. Maximal degree in co-relation 128. Up to 4 conditions per place. [2023-11-19 07:56:50,913 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 195 transitions, 404 flow [2023-11-19 07:56:50,925 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 150 transitions, 309 flow [2023-11-19 07:56:50,928 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:56:50,949 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 150 transitions, 309 flow [2023-11-19 07:56:50,952 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 150 transitions, 309 flow [2023-11-19 07:56:50,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 150 transitions, 309 flow [2023-11-19 07:56:51,018 INFO L124 PetriNetUnfolderBase]: 4/150 cut-off events. [2023-11-19 07:56:51,019 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:56:51,021 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 207 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 107. Up to 2 conditions per place. [2023-11-19 07:56:51,026 INFO L119 LiptonReduction]: Number of co-enabled transitions 5580 [2023-11-19 07:57:00,408 INFO L134 LiptonReduction]: Checked pairs total: 13912 [2023-11-19 07:57:00,408 INFO L136 LiptonReduction]: Total number of compositions: 146 [2023-11-19 07:57:00,426 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:57:00,432 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;@53402653, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:57:00,433 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-19 07:57:00,438 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:57:00,438 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-11-19 07:57:00,438 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:57:00,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:00,439 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:57:00,440 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:57:00,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:00,446 INFO L85 PathProgramCache]: Analyzing trace with hash 695231600, now seen corresponding path program 1 times [2023-11-19 07:57:00,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:00,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916428608] [2023-11-19 07:57:00,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:00,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:01,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:01,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:01,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916428608] [2023-11-19 07:57:01,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916428608] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:01,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:01,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:57:01,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211817351] [2023-11-19 07:57:01,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:01,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:57:01,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:01,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:57:01,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:02,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 341 [2023-11-19 07:57:02,012 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 07:57:02,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:02,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 341 [2023-11-19 07:57:02,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:02,373 INFO L124 PetriNetUnfolderBase]: 523/938 cut-off events. [2023-11-19 07:57:02,373 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2023-11-19 07:57:02,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 938 events. 523/938 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4318 event pairs, 518 based on Foata normal form. 0/771 useless extension candidates. Maximal degree in co-relation 1756. Up to 870 conditions per place. [2023-11-19 07:57:02,384 INFO L140 encePairwiseOnDemand]: 332/341 looper letters, 23 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2023-11-19 07:57:02,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 137 flow [2023-11-19 07:57:02,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:57:02,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:57:02,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 958 transitions. [2023-11-19 07:57:02,406 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4682306940371456 [2023-11-19 07:57:02,407 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 958 transitions. [2023-11-19 07:57:02,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 958 transitions. [2023-11-19 07:57:02,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:02,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 958 transitions. [2023-11-19 07:57:02,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.66666666666666) internal successors, (958), 6 states have internal predecessors, (958), 0 states have call successors, (0), 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 07:57:02,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 341.0) internal successors, (2387), 7 states have internal predecessors, (2387), 0 states have call successors, (0), 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 07:57:02,436 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 341.0) internal successors, (2387), 7 states have internal predecessors, (2387), 0 states have call successors, (0), 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 07:57:02,438 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 71 flow. Second operand 6 states and 958 transitions. [2023-11-19 07:57:02,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 137 flow [2023-11-19 07:57:02,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 33 transitions, 132 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:57:02,446 INFO L231 Difference]: Finished difference. Result has 38 places, 32 transitions, 105 flow [2023-11-19 07:57:02,449 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, 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 07:57:02,452 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 1 predicate places. [2023-11-19 07:57:02,453 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 105 flow [2023-11-19 07:57:02,454 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 07:57:02,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:02,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:57:02,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:57:02,455 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:57:02,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:02,456 INFO L85 PathProgramCache]: Analyzing trace with hash 77014639, now seen corresponding path program 1 times [2023-11-19 07:57:02,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:02,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184797452] [2023-11-19 07:57:02,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:02,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,210 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 07:57:03,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:03,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184797452] [2023-11-19 07:57:03,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184797452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:03,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:03,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:57:03,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165218511] [2023-11-19 07:57:03,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:03,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:57:03,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:03,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:57:03,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:57:03,405 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 341 [2023-11-19 07:57:03,406 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 07:57:03,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:03,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 341 [2023-11-19 07:57:03,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:03,741 INFO L124 PetriNetUnfolderBase]: 538/962 cut-off events. [2023-11-19 07:57:03,741 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2023-11-19 07:57:03,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2118 conditions, 962 events. 538/962 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4441 event pairs, 292 based on Foata normal form. 3/839 useless extension candidates. Maximal degree in co-relation 1965. Up to 873 conditions per place. [2023-11-19 07:57:03,753 INFO L140 encePairwiseOnDemand]: 331/341 looper letters, 30 selfloop transitions, 17 changer transitions 0/49 dead transitions. [2023-11-19 07:57:03,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 49 transitions, 247 flow [2023-11-19 07:57:03,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:57:03,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:57:03,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 964 transitions. [2023-11-19 07:57:03,758 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47116324535679377 [2023-11-19 07:57:03,759 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 964 transitions. [2023-11-19 07:57:03,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 964 transitions. [2023-11-19 07:57:03,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:03,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 964 transitions. [2023-11-19 07:57:03,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.66666666666666) internal successors, (964), 6 states have internal predecessors, (964), 0 states have call successors, (0), 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 07:57:03,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 341.0) internal successors, (2387), 7 states have internal predecessors, (2387), 0 states have call successors, (0), 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 07:57:03,775 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 341.0) internal successors, (2387), 7 states have internal predecessors, (2387), 0 states have call successors, (0), 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 07:57:03,775 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 105 flow. Second operand 6 states and 964 transitions. [2023-11-19 07:57:03,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 49 transitions, 247 flow [2023-11-19 07:57:03,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 49 transitions, 245 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:57:03,781 INFO L231 Difference]: Finished difference. Result has 44 places, 42 transitions, 193 flow [2023-11-19 07:57:03,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, 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=6, PETRI_FLOW=193, PETRI_PLACES=44, PETRI_TRANSITIONS=42} [2023-11-19 07:57:03,787 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 7 predicate places. [2023-11-19 07:57:03,787 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 42 transitions, 193 flow [2023-11-19 07:57:03,788 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 07:57:03,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:03,789 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:57:03,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:57:03,790 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 07:57:03,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:03,793 INFO L85 PathProgramCache]: Analyzing trace with hash 77345719, now seen corresponding path program 2 times [2023-11-19 07:57:03,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:03,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692892545] [2023-11-19 07:57:03,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:03,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:04,463 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 07:57:04,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:04,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692892545] [2023-11-19 07:57:04,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692892545] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:04,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:04,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:57:04,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003536105] [2023-11-19 07:57:04,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:04,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:57:04,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:04,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:57:04,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:57:04,637 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 341 [2023-11-19 07:57:04,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 42 transitions, 193 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 07:57:04,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:04,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 341 [2023-11-19 07:57:04,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:04,972 INFO L124 PetriNetUnfolderBase]: 528/926 cut-off events. [2023-11-19 07:57:04,972 INFO L125 PetriNetUnfolderBase]: For 551/551 co-relation queries the response was YES. [2023-11-19 07:57:04,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2405 conditions, 926 events. 528/926 cut-off events. For 551/551 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4217 event pairs, 295 based on Foata normal form. 3/807 useless extension candidates. Maximal degree in co-relation 2259. Up to 845 conditions per place. [2023-11-19 07:57:04,980 INFO L140 encePairwiseOnDemand]: 332/341 looper letters, 32 selfloop transitions, 20 changer transitions 0/54 dead transitions. [2023-11-19 07:57:04,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 54 transitions, 341 flow [2023-11-19 07:57:04,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:57:04,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:57:04,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 963 transitions. [2023-11-19 07:57:04,985 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4706744868035191 [2023-11-19 07:57:04,986 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 963 transitions. [2023-11-19 07:57:04,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 963 transitions. [2023-11-19 07:57:04,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:04,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 963 transitions. [2023-11-19 07:57:04,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.5) internal successors, (963), 6 states have internal predecessors, (963), 0 states have call successors, (0), 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 07:57:04,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 341.0) internal successors, (2387), 7 states have internal predecessors, (2387), 0 states have call successors, (0), 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 07:57:04,998 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 341.0) internal successors, (2387), 7 states have internal predecessors, (2387), 0 states have call successors, (0), 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 07:57:04,998 INFO L175 Difference]: Start difference. First operand has 44 places, 42 transitions, 193 flow. Second operand 6 states and 963 transitions. [2023-11-19 07:57:04,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 54 transitions, 341 flow [2023-11-19 07:57:05,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 54 transitions, 325 flow, removed 7 selfloop flow, removed 1 redundant places. [2023-11-19 07:57:05,009 INFO L231 Difference]: Finished difference. Result has 49 places, 47 transitions, 261 flow [2023-11-19 07:57:05,009 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=261, PETRI_PLACES=49, PETRI_TRANSITIONS=47} [2023-11-19 07:57:05,011 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 12 predicate places. [2023-11-19 07:57:05,011 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 47 transitions, 261 flow [2023-11-19 07:57:05,012 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 07:57:05,013 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:05,013 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:05,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:57:05,018 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:57:05,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:05,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1911417567, now seen corresponding path program 1 times [2023-11-19 07:57:05,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:05,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107195139] [2023-11-19 07:57:05,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:05,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:05,541 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 07:57:05,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:05,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107195139] [2023-11-19 07:57:05,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107195139] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:05,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:05,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:57:05,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194460934] [2023-11-19 07:57:05,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:05,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:57:05,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:05,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:57:05,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:57:05,682 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 341 [2023-11-19 07:57:05,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 47 transitions, 261 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 07:57:05,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:05,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 341 [2023-11-19 07:57:05,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:06,028 INFO L124 PetriNetUnfolderBase]: 520/914 cut-off events. [2023-11-19 07:57:06,028 INFO L125 PetriNetUnfolderBase]: For 583/583 co-relation queries the response was YES. [2023-11-19 07:57:06,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2436 conditions, 914 events. 520/914 cut-off events. For 583/583 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4173 event pairs, 324 based on Foata normal form. 0/796 useless extension candidates. Maximal degree in co-relation 2265. Up to 850 conditions per place. [2023-11-19 07:57:06,036 INFO L140 encePairwiseOnDemand]: 332/341 looper letters, 39 selfloop transitions, 22 changer transitions 0/63 dead transitions. [2023-11-19 07:57:06,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 63 transitions, 481 flow [2023-11-19 07:57:06,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:57:06,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:57:06,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 961 transitions. [2023-11-19 07:57:06,041 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4696969696969697 [2023-11-19 07:57:06,041 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 961 transitions. [2023-11-19 07:57:06,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 961 transitions. [2023-11-19 07:57:06,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:06,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 961 transitions. [2023-11-19 07:57:06,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.16666666666666) internal successors, (961), 6 states have internal predecessors, (961), 0 states have call successors, (0), 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 07:57:06,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 341.0) internal successors, (2387), 7 states have internal predecessors, (2387), 0 states have call successors, (0), 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 07:57:06,051 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 341.0) internal successors, (2387), 7 states have internal predecessors, (2387), 0 states have call successors, (0), 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 07:57:06,051 INFO L175 Difference]: Start difference. First operand has 49 places, 47 transitions, 261 flow. Second operand 6 states and 961 transitions. [2023-11-19 07:57:06,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 63 transitions, 481 flow [2023-11-19 07:57:06,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 63 transitions, 456 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-11-19 07:57:06,056 INFO L231 Difference]: Finished difference. Result has 55 places, 59 transitions, 386 flow [2023-11-19 07:57:06,057 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=386, PETRI_PLACES=55, PETRI_TRANSITIONS=59} [2023-11-19 07:57:06,057 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 18 predicate places. [2023-11-19 07:57:06,058 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 59 transitions, 386 flow [2023-11-19 07:57:06,058 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 07:57:06,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:06,059 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:06,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:57:06,059 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:57:06,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:06,060 INFO L85 PathProgramCache]: Analyzing trace with hash 996274300, now seen corresponding path program 1 times [2023-11-19 07:57:06,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:06,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703320577] [2023-11-19 07:57:06,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:06,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:06,918 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 07:57:06,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:06,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703320577] [2023-11-19 07:57:06,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703320577] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:06,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:06,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:57:06,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056788212] [2023-11-19 07:57:06,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:06,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:57:06,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:06,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:57:06,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:57:07,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 341 [2023-11-19 07:57:07,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 59 transitions, 386 flow. Second operand has 7 states, 7 states have (on average 149.14285714285714) internal successors, (1044), 7 states have internal predecessors, (1044), 0 states have call successors, (0), 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 07:57:07,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:07,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 341 [2023-11-19 07:57:07,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:07,662 INFO L124 PetriNetUnfolderBase]: 538/930 cut-off events. [2023-11-19 07:57:07,662 INFO L125 PetriNetUnfolderBase]: For 658/658 co-relation queries the response was YES. [2023-11-19 07:57:07,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2671 conditions, 930 events. 538/930 cut-off events. For 658/658 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4183 event pairs, 270 based on Foata normal form. 2/854 useless extension candidates. Maximal degree in co-relation 2367. Up to 839 conditions per place. [2023-11-19 07:57:07,672 INFO L140 encePairwiseOnDemand]: 330/341 looper letters, 41 selfloop transitions, 35 changer transitions 0/78 dead transitions. [2023-11-19 07:57:07,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 78 transitions, 627 flow [2023-11-19 07:57:07,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:57:07,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 07:57:07,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1238 transitions. [2023-11-19 07:57:07,678 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4538123167155425 [2023-11-19 07:57:07,679 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1238 transitions. [2023-11-19 07:57:07,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1238 transitions. [2023-11-19 07:57:07,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:07,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1238 transitions. [2023-11-19 07:57:07,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 154.75) internal successors, (1238), 8 states have internal predecessors, (1238), 0 states have call successors, (0), 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 07:57:07,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 07:57:07,693 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 07:57:07,693 INFO L175 Difference]: Start difference. First operand has 55 places, 59 transitions, 386 flow. Second operand 8 states and 1238 transitions. [2023-11-19 07:57:07,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 78 transitions, 627 flow [2023-11-19 07:57:07,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 78 transitions, 600 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-11-19 07:57:07,700 INFO L231 Difference]: Finished difference. Result has 64 places, 70 transitions, 527 flow [2023-11-19 07:57:07,701 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=527, PETRI_PLACES=64, PETRI_TRANSITIONS=70} [2023-11-19 07:57:07,704 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 27 predicate places. [2023-11-19 07:57:07,704 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 70 transitions, 527 flow [2023-11-19 07:57:07,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 149.14285714285714) internal successors, (1044), 7 states have internal predecessors, (1044), 0 states have call successors, (0), 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 07:57:07,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:07,705 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:07,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:57:07,705 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 07:57:07,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:07,706 INFO L85 PathProgramCache]: Analyzing trace with hash 875679621, now seen corresponding path program 1 times [2023-11-19 07:57:07,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:07,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030918788] [2023-11-19 07:57:07,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:07,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:08,449 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 07:57:08,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:08,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030918788] [2023-11-19 07:57:08,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030918788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:08,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:08,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:57:08,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679450983] [2023-11-19 07:57:08,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:08,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:57:08,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:08,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:57:08,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:57:08,685 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 341 [2023-11-19 07:57:08,687 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 70 transitions, 527 flow. Second operand has 7 states, 7 states have (on average 149.14285714285714) internal successors, (1044), 7 states have internal predecessors, (1044), 0 states have call successors, (0), 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 07:57:08,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:08,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 341 [2023-11-19 07:57:08,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:09,133 INFO L124 PetriNetUnfolderBase]: 530/910 cut-off events. [2023-11-19 07:57:09,133 INFO L125 PetriNetUnfolderBase]: For 1201/1201 co-relation queries the response was YES. [2023-11-19 07:57:09,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2954 conditions, 910 events. 530/910 cut-off events. For 1201/1201 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4026 event pairs, 237 based on Foata normal form. 2/836 useless extension candidates. Maximal degree in co-relation 2737. Up to 846 conditions per place. [2023-11-19 07:57:09,143 INFO L140 encePairwiseOnDemand]: 331/341 looper letters, 47 selfloop transitions, 33 changer transitions 0/82 dead transitions. [2023-11-19 07:57:09,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 82 transitions, 765 flow [2023-11-19 07:57:09,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:57:09,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 07:57:09,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1236 transitions. [2023-11-19 07:57:09,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4530791788856305 [2023-11-19 07:57:09,148 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1236 transitions. [2023-11-19 07:57:09,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1236 transitions. [2023-11-19 07:57:09,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:09,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1236 transitions. [2023-11-19 07:57:09,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 154.5) internal successors, (1236), 8 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:09,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 07:57:09,159 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 07:57:09,160 INFO L175 Difference]: Start difference. First operand has 64 places, 70 transitions, 527 flow. Second operand 8 states and 1236 transitions. [2023-11-19 07:57:09,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 82 transitions, 765 flow [2023-11-19 07:57:09,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 82 transitions, 716 flow, removed 11 selfloop flow, removed 3 redundant places. [2023-11-19 07:57:09,171 INFO L231 Difference]: Finished difference. Result has 70 places, 77 transitions, 619 flow [2023-11-19 07:57:09,172 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=619, PETRI_PLACES=70, PETRI_TRANSITIONS=77} [2023-11-19 07:57:09,174 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 33 predicate places. [2023-11-19 07:57:09,174 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 77 transitions, 619 flow [2023-11-19 07:57:09,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 149.14285714285714) internal successors, (1044), 7 states have internal predecessors, (1044), 0 states have call successors, (0), 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 07:57:09,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:09,175 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:09,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:57:09,175 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:57:09,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:09,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1314759310, now seen corresponding path program 2 times [2023-11-19 07:57:09,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:09,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357582554] [2023-11-19 07:57:09,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:09,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:09,902 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 07:57:09,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:09,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357582554] [2023-11-19 07:57:09,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357582554] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:09,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:09,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:57:09,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857308685] [2023-11-19 07:57:09,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:09,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:57:09,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:09,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:57:09,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:57:10,178 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 341 [2023-11-19 07:57:10,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 77 transitions, 619 flow. Second operand has 7 states, 7 states have (on average 149.14285714285714) internal successors, (1044), 7 states have internal predecessors, (1044), 0 states have call successors, (0), 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 07:57:10,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:10,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 341 [2023-11-19 07:57:10,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:10,669 INFO L124 PetriNetUnfolderBase]: 522/898 cut-off events. [2023-11-19 07:57:10,670 INFO L125 PetriNetUnfolderBase]: For 1440/1440 co-relation queries the response was YES. [2023-11-19 07:57:10,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3186 conditions, 898 events. 522/898 cut-off events. For 1440/1440 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3959 event pairs, 237 based on Foata normal form. 2/826 useless extension candidates. Maximal degree in co-relation 2959. Up to 798 conditions per place. [2023-11-19 07:57:10,681 INFO L140 encePairwiseOnDemand]: 331/341 looper letters, 42 selfloop transitions, 42 changer transitions 0/86 dead transitions. [2023-11-19 07:57:10,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 86 transitions, 845 flow [2023-11-19 07:57:10,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:57:10,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 07:57:10,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1238 transitions. [2023-11-19 07:57:10,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4538123167155425 [2023-11-19 07:57:10,686 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1238 transitions. [2023-11-19 07:57:10,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1238 transitions. [2023-11-19 07:57:10,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:10,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1238 transitions. [2023-11-19 07:57:10,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 154.75) internal successors, (1238), 8 states have internal predecessors, (1238), 0 states have call successors, (0), 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 07:57:10,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 07:57:10,697 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 07:57:10,697 INFO L175 Difference]: Start difference. First operand has 70 places, 77 transitions, 619 flow. Second operand 8 states and 1238 transitions. [2023-11-19 07:57:10,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 86 transitions, 845 flow [2023-11-19 07:57:10,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 86 transitions, 791 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-11-19 07:57:10,705 INFO L231 Difference]: Finished difference. Result has 74 places, 80 transitions, 707 flow [2023-11-19 07:57:10,705 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=707, PETRI_PLACES=74, PETRI_TRANSITIONS=80} [2023-11-19 07:57:10,706 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 37 predicate places. [2023-11-19 07:57:10,706 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 80 transitions, 707 flow [2023-11-19 07:57:10,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 149.14285714285714) internal successors, (1044), 7 states have internal predecessors, (1044), 0 states have call successors, (0), 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 07:57:10,707 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:10,707 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:10,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:57:10,707 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:57:10,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:10,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1376165892, now seen corresponding path program 1 times [2023-11-19 07:57:10,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:10,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795262477] [2023-11-19 07:57:10,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:10,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:11,441 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 07:57:11,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:11,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795262477] [2023-11-19 07:57:11,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795262477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:11,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:11,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:57:11,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460885382] [2023-11-19 07:57:11,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:11,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:57:11,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:11,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:57:11,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:57:11,817 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 341 [2023-11-19 07:57:11,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 80 transitions, 707 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 07:57:11,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:11,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 341 [2023-11-19 07:57:11,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:12,375 INFO L124 PetriNetUnfolderBase]: 548/937 cut-off events. [2023-11-19 07:57:12,375 INFO L125 PetriNetUnfolderBase]: For 2102/2102 co-relation queries the response was YES. [2023-11-19 07:57:12,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3600 conditions, 937 events. 548/937 cut-off events. For 2102/2102 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4218 event pairs, 235 based on Foata normal form. 4/865 useless extension candidates. Maximal degree in co-relation 3359. Up to 875 conditions per place. [2023-11-19 07:57:12,386 INFO L140 encePairwiseOnDemand]: 329/341 looper letters, 63 selfloop transitions, 35 changer transitions 0/100 dead transitions. [2023-11-19 07:57:12,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 100 transitions, 1064 flow [2023-11-19 07:57:12,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:57:12,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-19 07:57:12,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1414 transitions. [2023-11-19 07:57:12,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4607363962202672 [2023-11-19 07:57:12,393 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1414 transitions. [2023-11-19 07:57:12,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1414 transitions. [2023-11-19 07:57:12,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:12,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1414 transitions. [2023-11-19 07:57:12,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 157.11111111111111) internal successors, (1414), 9 states have internal predecessors, (1414), 0 states have call successors, (0), 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 07:57:12,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 341.0) internal successors, (3410), 10 states have internal predecessors, (3410), 0 states have call successors, (0), 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 07:57:12,407 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 341.0) internal successors, (3410), 10 states have internal predecessors, (3410), 0 states have call successors, (0), 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 07:57:12,407 INFO L175 Difference]: Start difference. First operand has 74 places, 80 transitions, 707 flow. Second operand 9 states and 1414 transitions. [2023-11-19 07:57:12,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 100 transitions, 1064 flow [2023-11-19 07:57:12,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 100 transitions, 977 flow, removed 7 selfloop flow, removed 6 redundant places. [2023-11-19 07:57:12,424 INFO L231 Difference]: Finished difference. Result has 79 places, 93 transitions, 859 flow [2023-11-19 07:57:12,424 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=859, PETRI_PLACES=79, PETRI_TRANSITIONS=93} [2023-11-19 07:57:12,427 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 42 predicate places. [2023-11-19 07:57:12,427 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 93 transitions, 859 flow [2023-11-19 07:57:12,428 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 07:57:12,428 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:12,428 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:12,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:57:12,428 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:57:12,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:12,429 INFO L85 PathProgramCache]: Analyzing trace with hash 821500298, now seen corresponding path program 2 times [2023-11-19 07:57:12,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:12,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224387361] [2023-11-19 07:57:12,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:12,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:13,107 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 07:57:13,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:13,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224387361] [2023-11-19 07:57:13,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224387361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:13,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:13,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:57:13,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34085475] [2023-11-19 07:57:13,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:13,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:57:13,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:13,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:57:13,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:57:13,470 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 341 [2023-11-19 07:57:13,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 93 transitions, 859 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 07:57:13,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:13,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 341 [2023-11-19 07:57:13,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:14,068 INFO L124 PetriNetUnfolderBase]: 580/985 cut-off events. [2023-11-19 07:57:14,068 INFO L125 PetriNetUnfolderBase]: For 2522/2522 co-relation queries the response was YES. [2023-11-19 07:57:14,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4008 conditions, 985 events. 580/985 cut-off events. For 2522/2522 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4345 event pairs, 258 based on Foata normal form. 4/911 useless extension candidates. Maximal degree in co-relation 3655. Up to 887 conditions per place. [2023-11-19 07:57:14,082 INFO L140 encePairwiseOnDemand]: 330/341 looper letters, 76 selfloop transitions, 49 changer transitions 0/127 dead transitions. [2023-11-19 07:57:14,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 127 transitions, 1404 flow [2023-11-19 07:57:14,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:57:14,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 07:57:14,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1266 transitions. [2023-11-19 07:57:14,091 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4640762463343108 [2023-11-19 07:57:14,091 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1266 transitions. [2023-11-19 07:57:14,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1266 transitions. [2023-11-19 07:57:14,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:14,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1266 transitions. [2023-11-19 07:57:14,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 158.25) internal successors, (1266), 8 states have internal predecessors, (1266), 0 states have call successors, (0), 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 07:57:14,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 07:57:14,104 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 07:57:14,104 INFO L175 Difference]: Start difference. First operand has 79 places, 93 transitions, 859 flow. Second operand 8 states and 1266 transitions. [2023-11-19 07:57:14,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 127 transitions, 1404 flow [2023-11-19 07:57:14,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 127 transitions, 1327 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-11-19 07:57:14,123 INFO L231 Difference]: Finished difference. Result has 84 places, 115 transitions, 1166 flow [2023-11-19 07:57:14,123 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1166, PETRI_PLACES=84, PETRI_TRANSITIONS=115} [2023-11-19 07:57:14,124 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 47 predicate places. [2023-11-19 07:57:14,125 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 115 transitions, 1166 flow [2023-11-19 07:57:14,125 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 07:57:14,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:14,126 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:14,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:57:14,126 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 07:57:14,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:14,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1377914600, now seen corresponding path program 1 times [2023-11-19 07:57:14,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:14,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323167403] [2023-11-19 07:57:14,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:14,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:14,765 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 07:57:14,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:14,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323167403] [2023-11-19 07:57:14,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323167403] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:14,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:14,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:57:14,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162840085] [2023-11-19 07:57:14,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:14,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:57:14,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:14,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:57:14,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:57:15,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 341 [2023-11-19 07:57:15,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 115 transitions, 1166 flow. Second operand has 7 states, 7 states have (on average 145.28571428571428) internal successors, (1017), 7 states have internal predecessors, (1017), 0 states have call successors, (0), 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 07:57:15,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:15,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 341 [2023-11-19 07:57:15,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:15,756 INFO L124 PetriNetUnfolderBase]: 1058/1891 cut-off events. [2023-11-19 07:57:15,756 INFO L125 PetriNetUnfolderBase]: For 5450/5450 co-relation queries the response was YES. [2023-11-19 07:57:15,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7543 conditions, 1891 events. 1058/1891 cut-off events. For 5450/5450 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 10553 event pairs, 392 based on Foata normal form. 24/1762 useless extension candidates. Maximal degree in co-relation 7067. Up to 598 conditions per place. [2023-11-19 07:57:15,782 INFO L140 encePairwiseOnDemand]: 329/341 looper letters, 148 selfloop transitions, 43 changer transitions 0/193 dead transitions. [2023-11-19 07:57:15,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 193 transitions, 2043 flow [2023-11-19 07:57:15,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:57:15,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-19 07:57:15,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1387 transitions. [2023-11-19 07:57:15,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4519387422613229 [2023-11-19 07:57:15,790 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1387 transitions. [2023-11-19 07:57:15,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1387 transitions. [2023-11-19 07:57:15,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:15,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1387 transitions. [2023-11-19 07:57:15,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 154.11111111111111) internal successors, (1387), 9 states have internal predecessors, (1387), 0 states have call successors, (0), 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 07:57:15,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 341.0) internal successors, (3410), 10 states have internal predecessors, (3410), 0 states have call successors, (0), 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 07:57:15,816 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 341.0) internal successors, (3410), 10 states have internal predecessors, (3410), 0 states have call successors, (0), 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 07:57:15,825 INFO L175 Difference]: Start difference. First operand has 84 places, 115 transitions, 1166 flow. Second operand 9 states and 1387 transitions. [2023-11-19 07:57:15,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 193 transitions, 2043 flow [2023-11-19 07:57:15,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 193 transitions, 1976 flow, removed 11 selfloop flow, removed 3 redundant places. [2023-11-19 07:57:15,849 INFO L231 Difference]: Finished difference. Result has 91 places, 128 transitions, 1344 flow [2023-11-19 07:57:15,850 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=1099, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1344, PETRI_PLACES=91, PETRI_TRANSITIONS=128} [2023-11-19 07:57:15,851 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 54 predicate places. [2023-11-19 07:57:15,852 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 128 transitions, 1344 flow [2023-11-19 07:57:15,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 145.28571428571428) internal successors, (1017), 7 states have internal predecessors, (1017), 0 states have call successors, (0), 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 07:57:15,853 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:15,853 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:15,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:57:15,853 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 07:57:15,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:15,854 INFO L85 PathProgramCache]: Analyzing trace with hash 2102829562, now seen corresponding path program 1 times [2023-11-19 07:57:15,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:15,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957840046] [2023-11-19 07:57:15,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:15,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:16,551 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 07:57:16,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:16,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957840046] [2023-11-19 07:57:16,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957840046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:16,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:16,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:57:16,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903388143] [2023-11-19 07:57:16,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:16,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:57:16,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:16,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:57:16,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:57:16,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 341 [2023-11-19 07:57:16,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 128 transitions, 1344 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 07:57:16,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:16,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 341 [2023-11-19 07:57:16,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:17,796 INFO L124 PetriNetUnfolderBase]: 1050/1879 cut-off events. [2023-11-19 07:57:17,796 INFO L125 PetriNetUnfolderBase]: For 7596/7596 co-relation queries the response was YES. [2023-11-19 07:57:17,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8341 conditions, 1879 events. 1050/1879 cut-off events. For 7596/7596 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 10586 event pairs, 524 based on Foata normal form. 2/1730 useless extension candidates. Maximal degree in co-relation 7938. Up to 1727 conditions per place. [2023-11-19 07:57:17,830 INFO L140 encePairwiseOnDemand]: 329/341 looper letters, 79 selfloop transitions, 56 changer transitions 0/137 dead transitions. [2023-11-19 07:57:17,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 137 transitions, 1674 flow [2023-11-19 07:57:17,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:57:17,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:57:17,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1572 transitions. [2023-11-19 07:57:17,837 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46099706744868035 [2023-11-19 07:57:17,837 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1572 transitions. [2023-11-19 07:57:17,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1572 transitions. [2023-11-19 07:57:17,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:17,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1572 transitions. [2023-11-19 07:57:17,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 157.2) internal successors, (1572), 10 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:17,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 341.0) internal successors, (3751), 11 states have internal predecessors, (3751), 0 states have call successors, (0), 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 07:57:17,851 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 341.0) internal successors, (3751), 11 states have internal predecessors, (3751), 0 states have call successors, (0), 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 07:57:17,851 INFO L175 Difference]: Start difference. First operand has 91 places, 128 transitions, 1344 flow. Second operand 10 states and 1572 transitions. [2023-11-19 07:57:17,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 137 transitions, 1674 flow [2023-11-19 07:57:17,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 137 transitions, 1637 flow, removed 13 selfloop flow, removed 3 redundant places. [2023-11-19 07:57:17,885 INFO L231 Difference]: Finished difference. Result has 98 places, 130 transitions, 1466 flow [2023-11-19 07:57:17,885 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=1307, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1466, PETRI_PLACES=98, PETRI_TRANSITIONS=130} [2023-11-19 07:57:17,886 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 61 predicate places. [2023-11-19 07:57:17,886 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 130 transitions, 1466 flow [2023-11-19 07:57:17,887 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 07:57:17,887 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:17,887 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:17,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:57:17,887 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:57:17,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:17,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1374436090, now seen corresponding path program 2 times [2023-11-19 07:57:17,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:17,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805670759] [2023-11-19 07:57:17,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:17,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:18,595 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 07:57:18,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:18,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805670759] [2023-11-19 07:57:18,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805670759] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:18,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:18,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:57:18,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616743433] [2023-11-19 07:57:18,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:18,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:57:18,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:18,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:57:18,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:57:19,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 341 [2023-11-19 07:57:19,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 130 transitions, 1466 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 07:57:19,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:19,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 341 [2023-11-19 07:57:19,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:19,857 INFO L124 PetriNetUnfolderBase]: 1034/1855 cut-off events. [2023-11-19 07:57:19,857 INFO L125 PetriNetUnfolderBase]: For 7414/7414 co-relation queries the response was YES. [2023-11-19 07:57:19,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8256 conditions, 1855 events. 1034/1855 cut-off events. For 7414/7414 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 10442 event pairs, 569 based on Foata normal form. 4/1714 useless extension candidates. Maximal degree in co-relation 7985. Up to 1721 conditions per place. [2023-11-19 07:57:19,890 INFO L140 encePairwiseOnDemand]: 328/341 looper letters, 94 selfloop transitions, 56 changer transitions 0/152 dead transitions. [2023-11-19 07:57:19,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 152 transitions, 2002 flow [2023-11-19 07:57:19,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:57:19,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-19 07:57:19,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1882 transitions. [2023-11-19 07:57:19,899 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45992179863147603 [2023-11-19 07:57:19,899 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1882 transitions. [2023-11-19 07:57:19,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1882 transitions. [2023-11-19 07:57:19,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:19,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1882 transitions. [2023-11-19 07:57:19,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 156.83333333333334) internal successors, (1882), 12 states have internal predecessors, (1882), 0 states have call successors, (0), 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 07:57:19,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 341.0) internal successors, (4433), 13 states have internal predecessors, (4433), 0 states have call successors, (0), 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 07:57:19,916 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 341.0) internal successors, (4433), 13 states have internal predecessors, (4433), 0 states have call successors, (0), 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 07:57:19,917 INFO L175 Difference]: Start difference. First operand has 98 places, 130 transitions, 1466 flow. Second operand 12 states and 1882 transitions. [2023-11-19 07:57:19,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 152 transitions, 2002 flow [2023-11-19 07:57:19,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 152 transitions, 1879 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-11-19 07:57:19,947 INFO L231 Difference]: Finished difference. Result has 106 places, 142 transitions, 1674 flow [2023-11-19 07:57:19,947 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=1364, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1674, PETRI_PLACES=106, PETRI_TRANSITIONS=142} [2023-11-19 07:57:19,948 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 69 predicate places. [2023-11-19 07:57:19,949 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 142 transitions, 1674 flow [2023-11-19 07:57:19,949 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 07:57:19,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:19,950 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:19,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:57:19,950 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:57:19,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:19,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1379853650, now seen corresponding path program 2 times [2023-11-19 07:57:19,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:19,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653312344] [2023-11-19 07:57:19,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:19,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:20,456 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 07:57:20,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:20,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653312344] [2023-11-19 07:57:20,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653312344] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:20,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:20,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:57:20,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701578062] [2023-11-19 07:57:20,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:20,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:57:20,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:20,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:57:20,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:57:20,704 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 341 [2023-11-19 07:57:20,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 142 transitions, 1674 flow. Second operand has 7 states, 7 states have (on average 145.28571428571428) internal successors, (1017), 7 states have internal predecessors, (1017), 0 states have call successors, (0), 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 07:57:20,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:20,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 341 [2023-11-19 07:57:20,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:21,454 INFO L124 PetriNetUnfolderBase]: 1228/2251 cut-off events. [2023-11-19 07:57:21,455 INFO L125 PetriNetUnfolderBase]: For 10180/10180 co-relation queries the response was YES. [2023-11-19 07:57:21,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10139 conditions, 2251 events. 1228/2251 cut-off events. For 10180/10180 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 13747 event pairs, 319 based on Foata normal form. 24/2107 useless extension candidates. Maximal degree in co-relation 9929. Up to 989 conditions per place. [2023-11-19 07:57:21,486 INFO L140 encePairwiseOnDemand]: 329/341 looper letters, 154 selfloop transitions, 39 changer transitions 2/197 dead transitions. [2023-11-19 07:57:21,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 197 transitions, 2482 flow [2023-11-19 07:57:21,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:57:21,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:57:21,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1081 transitions. [2023-11-19 07:57:21,492 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45286971093422707 [2023-11-19 07:57:21,492 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1081 transitions. [2023-11-19 07:57:21,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1081 transitions. [2023-11-19 07:57:21,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:21,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1081 transitions. [2023-11-19 07:57:21,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 154.42857142857142) internal successors, (1081), 7 states have internal predecessors, (1081), 0 states have call successors, (0), 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 07:57:21,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 341.0) internal successors, (2728), 8 states have internal predecessors, (2728), 0 states have call successors, (0), 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 07:57:21,504 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 341.0) internal successors, (2728), 8 states have internal predecessors, (2728), 0 states have call successors, (0), 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 07:57:21,505 INFO L175 Difference]: Start difference. First operand has 106 places, 142 transitions, 1674 flow. Second operand 7 states and 1081 transitions. [2023-11-19 07:57:21,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 197 transitions, 2482 flow [2023-11-19 07:57:21,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 197 transitions, 2379 flow, removed 11 selfloop flow, removed 5 redundant places. [2023-11-19 07:57:21,541 INFO L231 Difference]: Finished difference. Result has 109 places, 149 transitions, 1753 flow [2023-11-19 07:57:21,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=1571, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1753, PETRI_PLACES=109, PETRI_TRANSITIONS=149} [2023-11-19 07:57:21,542 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 72 predicate places. [2023-11-19 07:57:21,542 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 149 transitions, 1753 flow [2023-11-19 07:57:21,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 145.28571428571428) internal successors, (1017), 7 states have internal predecessors, (1017), 0 states have call successors, (0), 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 07:57:21,543 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:21,543 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:21,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:57:21,544 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 07:57:21,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:21,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1376165890, now seen corresponding path program 3 times [2023-11-19 07:57:21,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:21,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361231104] [2023-11-19 07:57:21,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:21,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:22,235 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 07:57:22,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:22,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361231104] [2023-11-19 07:57:22,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361231104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:22,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:22,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:57:22,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683635111] [2023-11-19 07:57:22,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:22,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:57:22,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:22,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:57:22,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:57:22,656 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 341 [2023-11-19 07:57:22,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 149 transitions, 1753 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 07:57:22,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:22,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 341 [2023-11-19 07:57:22,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:23,719 INFO L124 PetriNetUnfolderBase]: 1220/2247 cut-off events. [2023-11-19 07:57:23,719 INFO L125 PetriNetUnfolderBase]: For 12361/12361 co-relation queries the response was YES. [2023-11-19 07:57:23,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10867 conditions, 2247 events. 1220/2247 cut-off events. For 12361/12361 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 13815 event pairs, 560 based on Foata normal form. 2/2084 useless extension candidates. Maximal degree in co-relation 10610. Up to 2068 conditions per place. [2023-11-19 07:57:23,751 INFO L140 encePairwiseOnDemand]: 328/341 looper letters, 88 selfloop transitions, 67 changer transitions 0/157 dead transitions. [2023-11-19 07:57:23,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 157 transitions, 2098 flow [2023-11-19 07:57:23,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:57:23,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-19 07:57:23,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2186 transitions. [2023-11-19 07:57:23,759 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4578969417679095 [2023-11-19 07:57:23,759 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2186 transitions. [2023-11-19 07:57:23,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2186 transitions. [2023-11-19 07:57:23,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:23,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2186 transitions. [2023-11-19 07:57:23,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 156.14285714285714) internal successors, (2186), 14 states have internal predecessors, (2186), 0 states have call successors, (0), 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 07:57:23,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 341.0) internal successors, (5115), 15 states have internal predecessors, (5115), 0 states have call successors, (0), 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 07:57:23,782 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 341.0) internal successors, (5115), 15 states have internal predecessors, (5115), 0 states have call successors, (0), 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 07:57:23,782 INFO L175 Difference]: Start difference. First operand has 109 places, 149 transitions, 1753 flow. Second operand 14 states and 2186 transitions. [2023-11-19 07:57:23,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 157 transitions, 2098 flow [2023-11-19 07:57:23,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 157 transitions, 2008 flow, removed 17 selfloop flow, removed 4 redundant places. [2023-11-19 07:57:23,830 INFO L231 Difference]: Finished difference. Result has 119 places, 150 transitions, 1818 flow [2023-11-19 07:57:23,831 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=1663, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1818, PETRI_PLACES=119, PETRI_TRANSITIONS=150} [2023-11-19 07:57:23,832 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 82 predicate places. [2023-11-19 07:57:23,832 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 150 transitions, 1818 flow [2023-11-19 07:57:23,833 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 07:57:23,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:23,833 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:23,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:57:23,833 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:57:23,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:23,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1373808002, now seen corresponding path program 1 times [2023-11-19 07:57:23,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:23,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694061280] [2023-11-19 07:57:23,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:23,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:24,606 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 07:57:24,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:24,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694061280] [2023-11-19 07:57:24,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694061280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:24,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:24,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:57:24,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218905346] [2023-11-19 07:57:24,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:24,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:57:24,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:24,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:57:24,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:57:24,991 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 341 [2023-11-19 07:57:24,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 150 transitions, 1818 flow. Second operand has 8 states, 8 states have (on average 146.125) internal successors, (1169), 8 states have internal predecessors, (1169), 0 states have call successors, (0), 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 07:57:24,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:24,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 341 [2023-11-19 07:57:24,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:25,850 INFO L124 PetriNetUnfolderBase]: 1346/2456 cut-off events. [2023-11-19 07:57:25,850 INFO L125 PetriNetUnfolderBase]: For 12695/12695 co-relation queries the response was YES. [2023-11-19 07:57:25,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11696 conditions, 2456 events. 1346/2456 cut-off events. For 12695/12695 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 15211 event pairs, 647 based on Foata normal form. 30/2325 useless extension candidates. Maximal degree in co-relation 11451. Up to 2114 conditions per place. [2023-11-19 07:57:25,879 INFO L140 encePairwiseOnDemand]: 331/341 looper letters, 114 selfloop transitions, 77 changer transitions 0/193 dead transitions. [2023-11-19 07:57:25,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 193 transitions, 2549 flow [2023-11-19 07:57:25,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:57:25,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-19 07:57:25,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1817 transitions. [2023-11-19 07:57:25,885 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44403714565004887 [2023-11-19 07:57:25,885 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1817 transitions. [2023-11-19 07:57:25,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1817 transitions. [2023-11-19 07:57:25,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:25,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1817 transitions. [2023-11-19 07:57:25,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 151.41666666666666) internal successors, (1817), 12 states have internal predecessors, (1817), 0 states have call successors, (0), 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 07:57:25,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 341.0) internal successors, (4433), 13 states have internal predecessors, (4433), 0 states have call successors, (0), 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 07:57:25,897 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 341.0) internal successors, (4433), 13 states have internal predecessors, (4433), 0 states have call successors, (0), 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 07:57:25,897 INFO L175 Difference]: Start difference. First operand has 119 places, 150 transitions, 1818 flow. Second operand 12 states and 1817 transitions. [2023-11-19 07:57:25,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 193 transitions, 2549 flow [2023-11-19 07:57:25,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 193 transitions, 2344 flow, removed 10 selfloop flow, removed 14 redundant places. [2023-11-19 07:57:25,939 INFO L231 Difference]: Finished difference. Result has 118 places, 169 transitions, 1998 flow [2023-11-19 07:57:25,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=1613, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1998, PETRI_PLACES=118, PETRI_TRANSITIONS=169} [2023-11-19 07:57:25,940 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 81 predicate places. [2023-11-19 07:57:25,940 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 169 transitions, 1998 flow [2023-11-19 07:57:25,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 146.125) internal successors, (1169), 8 states have internal predecessors, (1169), 0 states have call successors, (0), 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 07:57:25,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:25,941 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:25,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 07:57:25,941 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 07:57:25,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:25,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1371427850, now seen corresponding path program 3 times [2023-11-19 07:57:25,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:25,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950109091] [2023-11-19 07:57:25,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:25,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:26,437 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 07:57:26,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:26,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950109091] [2023-11-19 07:57:26,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950109091] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:26,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:26,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:57:26,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460831916] [2023-11-19 07:57:26,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:26,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:57:26,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:26,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:57:26,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:57:26,744 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 341 [2023-11-19 07:57:26,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 169 transitions, 1998 flow. Second operand has 7 states, 7 states have (on average 145.28571428571428) internal successors, (1017), 7 states have internal predecessors, (1017), 0 states have call successors, (0), 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 07:57:26,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:26,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 341 [2023-11-19 07:57:26,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:27,651 INFO L124 PetriNetUnfolderBase]: 1627/2976 cut-off events. [2023-11-19 07:57:27,652 INFO L125 PetriNetUnfolderBase]: For 17458/17458 co-relation queries the response was YES. [2023-11-19 07:57:27,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14749 conditions, 2976 events. 1627/2976 cut-off events. For 17458/17458 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 19383 event pairs, 230 based on Foata normal form. 24/2820 useless extension candidates. Maximal degree in co-relation 14509. Up to 1560 conditions per place. [2023-11-19 07:57:27,702 INFO L140 encePairwiseOnDemand]: 328/341 looper letters, 144 selfloop transitions, 89 changer transitions 5/240 dead transitions. [2023-11-19 07:57:27,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 240 transitions, 3214 flow [2023-11-19 07:57:27,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:57:27,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 07:57:27,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1231 transitions. [2023-11-19 07:57:27,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4512463343108504 [2023-11-19 07:57:27,706 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1231 transitions. [2023-11-19 07:57:27,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1231 transitions. [2023-11-19 07:57:27,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:27,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1231 transitions. [2023-11-19 07:57:27,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 153.875) internal successors, (1231), 8 states have internal predecessors, (1231), 0 states have call successors, (0), 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 07:57:27,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 07:57:27,716 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 07:57:27,716 INFO L175 Difference]: Start difference. First operand has 118 places, 169 transitions, 1998 flow. Second operand 8 states and 1231 transitions. [2023-11-19 07:57:27,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 240 transitions, 3214 flow [2023-11-19 07:57:27,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 240 transitions, 2948 flow, removed 78 selfloop flow, removed 7 redundant places. [2023-11-19 07:57:27,797 INFO L231 Difference]: Finished difference. Result has 122 places, 204 transitions, 2564 flow [2023-11-19 07:57:27,797 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=1818, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2564, PETRI_PLACES=122, PETRI_TRANSITIONS=204} [2023-11-19 07:57:27,798 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 85 predicate places. [2023-11-19 07:57:27,798 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 204 transitions, 2564 flow [2023-11-19 07:57:27,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 145.28571428571428) internal successors, (1017), 7 states have internal predecessors, (1017), 0 states have call successors, (0), 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 07:57:27,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:27,799 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:27,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 07:57:27,799 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:57:27,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:27,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1371427202, now seen corresponding path program 2 times [2023-11-19 07:57:27,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:27,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018070365] [2023-11-19 07:57:27,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:27,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat