./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183d5b0a-58e5-4061-b1ac-bad06e25540f/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183d5b0a-58e5-4061-b1ac-bad06e25540f/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_183d5b0a-58e5-4061-b1ac-bad06e25540f/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183d5b0a-58e5-4061-b1ac-bad06e25540f/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183d5b0a-58e5-4061-b1ac-bad06e25540f/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_183d5b0a-58e5-4061-b1ac-bad06e25540f/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 dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:45:44,043 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:45:44,151 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183d5b0a-58e5-4061-b1ac-bad06e25540f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:45:44,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:45:44,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:45:44,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:45:44,200 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:45:44,201 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:45:44,202 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:45:44,209 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:45:44,211 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:45:44,211 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:45:44,212 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:45:44,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:45:44,214 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:45:44,215 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:45:44,215 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:45:44,215 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:45:44,216 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:45:44,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:45:44,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:45:44,218 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:45:44,218 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:45:44,219 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:45:44,219 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:45:44,219 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:45:44,220 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:45:44,221 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:45:44,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:45:44,222 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:45:44,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:45:44,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:45:44,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:45:44,224 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:45:44,224 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:45:44,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:45:44,225 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:45:44,225 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:45:44,225 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:45:44,225 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:45:44,226 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:45:44,226 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_183d5b0a-58e5-4061-b1ac-bad06e25540f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183d5b0a-58e5-4061-b1ac-bad06e25540f/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 [2023-11-19 07:45:44,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:45:44,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:45:44,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:45:44,537 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:45:44,537 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:45:44,539 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183d5b0a-58e5-4061-b1ac-bad06e25540f/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2023-11-19 07:45:47,666 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:45:48,057 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:45:48,060 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183d5b0a-58e5-4061-b1ac-bad06e25540f/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2023-11-19 07:45:48,092 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183d5b0a-58e5-4061-b1ac-bad06e25540f/bin/uautomizer-verify-uCwYo4JHxu/data/ceee3cd0b/cc6d2355aa084c36bcd2eb5694f398ad/FLAG2c4309efe [2023-11-19 07:45:48,111 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183d5b0a-58e5-4061-b1ac-bad06e25540f/bin/uautomizer-verify-uCwYo4JHxu/data/ceee3cd0b/cc6d2355aa084c36bcd2eb5694f398ad [2023-11-19 07:45:48,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:45:48,116 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:45:48,117 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:45:48,117 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:45:48,124 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:45:48,128 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:48" (1/1) ... [2023-11-19 07:45:48,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bdde478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:48, skipping insertion in model container [2023-11-19 07:45:48,130 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:48" (1/1) ... [2023-11-19 07:45:48,226 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:45:48,450 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:45:49,250 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:45:49,265 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:45:49,281 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:45:49,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:45:49,570 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:45:49,571 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:45:49,571 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:45:49,580 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:45:49,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:49 WrapperNode [2023-11-19 07:45:49,581 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:45:49,583 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:45:49,583 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:45:49,584 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:45:49,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:49" (1/1) ... [2023-11-19 07:45:49,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:49" (1/1) ... [2023-11-19 07:45:49,709 INFO L138 Inliner]: procedures = 468, calls = 49, calls flagged for inlining = 11, calls inlined = 14, statements flattened = 128 [2023-11-19 07:45:49,710 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:45:49,711 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:45:49,711 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:45:49,711 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:45:49,726 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:49" (1/1) ... [2023-11-19 07:45:49,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:49" (1/1) ... [2023-11-19 07:45:49,739 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:49" (1/1) ... [2023-11-19 07:45:49,745 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:49" (1/1) ... [2023-11-19 07:45:49,783 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:49" (1/1) ... [2023-11-19 07:45:49,793 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:49" (1/1) ... [2023-11-19 07:45:49,798 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:49" (1/1) ... [2023-11-19 07:45:49,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:49" (1/1) ... [2023-11-19 07:45:49,809 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:45:49,810 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:45:49,810 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:45:49,810 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:45:49,811 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:49" (1/1) ... [2023-11-19 07:45:49,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:45:49,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183d5b0a-58e5-4061-b1ac-bad06e25540f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:45:49,848 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183d5b0a-58e5-4061-b1ac-bad06e25540f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:45:49,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183d5b0a-58e5-4061-b1ac-bad06e25540f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:45:49,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:45:49,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:45:49,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:45:49,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:45:49,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:45:49,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:45:49,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:45:49,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:45:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-19 07:45:49,891 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-19 07:45:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:45:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:45:49,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:45:49,894 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 07:45:50,231 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:45:50,234 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:45:50,494 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:45:50,534 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:45:50,534 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:45:50,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:50 BoogieIcfgContainer [2023-11-19 07:45:50,539 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:45:50,542 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:45:50,542 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:45:50,545 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:45:50,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:45:48" (1/3) ... [2023-11-19 07:45:50,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab8edc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:50, skipping insertion in model container [2023-11-19 07:45:50,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:49" (2/3) ... [2023-11-19 07:45:50,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab8edc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:50, skipping insertion in model container [2023-11-19 07:45:50,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:50" (3/3) ... [2023-11-19 07:45:50,549 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2023-11-19 07:45:50,558 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:45:50,570 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:45:50,570 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 07:45:50,570 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:45:50,646 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 07:45:50,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 185 transitions, 384 flow [2023-11-19 07:45:50,812 INFO L124 PetriNetUnfolderBase]: 14/239 cut-off events. [2023-11-19 07:45:50,812 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:45:50,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 239 events. 14/239 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 487 event pairs, 0 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 121. Up to 4 conditions per place. [2023-11-19 07:45:50,820 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 185 transitions, 384 flow [2023-11-19 07:45:50,825 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 140 transitions, 289 flow [2023-11-19 07:45:50,829 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:45:50,839 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 140 transitions, 289 flow [2023-11-19 07:45:50,842 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 140 transitions, 289 flow [2023-11-19 07:45:50,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 140 transitions, 289 flow [2023-11-19 07:45:50,878 INFO L124 PetriNetUnfolderBase]: 4/140 cut-off events. [2023-11-19 07:45:50,878 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:45:50,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 140 events. 4/140 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 185 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2023-11-19 07:45:50,883 INFO L119 LiptonReduction]: Number of co-enabled transitions 4320 [2023-11-19 07:46:00,284 INFO L134 LiptonReduction]: Checked pairs total: 7901 [2023-11-19 07:46:00,286 INFO L136 LiptonReduction]: Total number of compositions: 145 [2023-11-19 07:46:00,305 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:46:00,317 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;@1b2dc19, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:46:00,318 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-19 07:46:00,329 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:46:00,329 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-19 07:46:00,329 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:46:00,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:00,330 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:46:00,332 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:46:00,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:00,342 INFO L85 PathProgramCache]: Analyzing trace with hash 18948012, now seen corresponding path program 1 times [2023-11-19 07:46:00,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:00,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581366543] [2023-11-19 07:46:00,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:00,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:01,724 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 07:46:01,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:01,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581366543] [2023-11-19 07:46:01,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581366543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:01,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:01,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:46:01,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355847090] [2023-11-19 07:46:01,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:01,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:46:01,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:01,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:46:01,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:46:01,958 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 330 [2023-11-19 07:46:01,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 55 flow. Second operand has 5 states, 5 states have (on average 148.8) internal successors, (744), 5 states have internal predecessors, (744), 0 states have call successors, (0), 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 07:46:01,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:01,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 330 [2023-11-19 07:46:01,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:02,168 INFO L124 PetriNetUnfolderBase]: 108/209 cut-off events. [2023-11-19 07:46:02,168 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-19 07:46:02,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 209 events. 108/209 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 716 event pairs, 81 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 360. Up to 206 conditions per place. [2023-11-19 07:46:02,172 INFO L140 encePairwiseOnDemand]: 322/330 looper letters, 17 selfloop transitions, 6 changer transitions 0/23 dead transitions. [2023-11-19 07:46:02,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 101 flow [2023-11-19 07:46:02,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:46:02,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:46:02,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 766 transitions. [2023-11-19 07:46:02,196 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46424242424242423 [2023-11-19 07:46:02,197 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 766 transitions. [2023-11-19 07:46:02,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 766 transitions. [2023-11-19 07:46:02,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:02,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 766 transitions. [2023-11-19 07:46:02,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 153.2) internal successors, (766), 5 states have internal predecessors, (766), 0 states have call successors, (0), 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 07:46:02,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 330.0) internal successors, (1980), 6 states have internal predecessors, (1980), 0 states have call successors, (0), 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 07:46:02,228 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 330.0) internal successors, (1980), 6 states have internal predecessors, (1980), 0 states have call successors, (0), 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 07:46:02,230 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 55 flow. Second operand 5 states and 766 transitions. [2023-11-19 07:46:02,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 23 transitions, 101 flow [2023-11-19 07:46:02,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 23 transitions, 96 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:46:02,238 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 76 flow [2023-11-19 07:46:02,240 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=330, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=76, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2023-11-19 07:46:02,245 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -1 predicate places. [2023-11-19 07:46:02,245 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 76 flow [2023-11-19 07:46:02,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 148.8) internal successors, (744), 5 states have internal predecessors, (744), 0 states have call successors, (0), 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 07:46:02,247 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:02,247 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:46:02,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:46:02,248 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 07:46:02,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:02,249 INFO L85 PathProgramCache]: Analyzing trace with hash 587391292, now seen corresponding path program 1 times [2023-11-19 07:46:02,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:02,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309984222] [2023-11-19 07:46:02,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:02,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:03,060 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 07:46:03,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:03,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309984222] [2023-11-19 07:46:03,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309984222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:03,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:03,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:46:03,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70703363] [2023-11-19 07:46:03,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:03,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:46:03,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:03,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:46:03,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:46:03,232 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 330 [2023-11-19 07:46:03,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 76 flow. Second operand has 6 states, 6 states have (on average 147.83333333333334) internal successors, (887), 6 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:03,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:03,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 330 [2023-11-19 07:46:03,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:03,442 INFO L124 PetriNetUnfolderBase]: 100/195 cut-off events. [2023-11-19 07:46:03,443 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2023-11-19 07:46:03,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 195 events. 100/195 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 661 event pairs, 37 based on Foata normal form. 3/158 useless extension candidates. Maximal degree in co-relation 426. Up to 177 conditions per place. [2023-11-19 07:46:03,449 INFO L140 encePairwiseOnDemand]: 322/330 looper letters, 22 selfloop transitions, 11 changer transitions 0/33 dead transitions. [2023-11-19 07:46:03,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 33 transitions, 174 flow [2023-11-19 07:46:03,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:46:03,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:46:03,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 915 transitions. [2023-11-19 07:46:03,454 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4621212121212121 [2023-11-19 07:46:03,454 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 915 transitions. [2023-11-19 07:46:03,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 915 transitions. [2023-11-19 07:46:03,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:03,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 915 transitions. [2023-11-19 07:46:03,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 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 07:46:03,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 330.0) internal successors, (2310), 7 states have internal predecessors, (2310), 0 states have call successors, (0), 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 07:46:03,475 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 330.0) internal successors, (2310), 7 states have internal predecessors, (2310), 0 states have call successors, (0), 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 07:46:03,476 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 76 flow. Second operand 6 states and 915 transitions. [2023-11-19 07:46:03,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 33 transitions, 174 flow [2023-11-19 07:46:03,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 33 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:46:03,479 INFO L231 Difference]: Finished difference. Result has 34 places, 29 transitions, 139 flow [2023-11-19 07:46:03,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=330, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=139, PETRI_PLACES=34, PETRI_TRANSITIONS=29} [2023-11-19 07:46:03,480 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 5 predicate places. [2023-11-19 07:46:03,481 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 139 flow [2023-11-19 07:46:03,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 147.83333333333334) internal successors, (887), 6 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:03,482 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:03,482 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:46:03,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:46:03,483 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:46:03,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:03,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1028478250, now seen corresponding path program 1 times [2023-11-19 07:46:03,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:03,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781853478] [2023-11-19 07:46:03,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:03,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:04,076 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 07:46:04,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:04,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781853478] [2023-11-19 07:46:04,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781853478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:04,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:04,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:46:04,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804432444] [2023-11-19 07:46:04,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:04,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:46:04,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:04,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:46:04,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:46:04,216 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 330 [2023-11-19 07:46:04,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 139 flow. Second operand has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 0 states have call successors, (0), 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 07:46:04,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:04,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 330 [2023-11-19 07:46:04,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:04,448 INFO L124 PetriNetUnfolderBase]: 94/185 cut-off events. [2023-11-19 07:46:04,448 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2023-11-19 07:46:04,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 543 conditions, 185 events. 94/185 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 615 event pairs, 70 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 498. Up to 175 conditions per place. [2023-11-19 07:46:04,468 INFO L140 encePairwiseOnDemand]: 322/330 looper letters, 24 selfloop transitions, 11 changer transitions 0/35 dead transitions. [2023-11-19 07:46:04,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 35 transitions, 235 flow [2023-11-19 07:46:04,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:46:04,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:46:04,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 914 transitions. [2023-11-19 07:46:04,473 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4616161616161616 [2023-11-19 07:46:04,473 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 914 transitions. [2023-11-19 07:46:04,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 914 transitions. [2023-11-19 07:46:04,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:04,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 914 transitions. [2023-11-19 07:46:04,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 152.33333333333334) internal successors, (914), 6 states have internal predecessors, (914), 0 states have call successors, (0), 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 07:46:04,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 330.0) internal successors, (2310), 7 states have internal predecessors, (2310), 0 states have call successors, (0), 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 07:46:04,497 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 330.0) internal successors, (2310), 7 states have internal predecessors, (2310), 0 states have call successors, (0), 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 07:46:04,497 INFO L175 Difference]: Start difference. First operand has 34 places, 29 transitions, 139 flow. Second operand 6 states and 914 transitions. [2023-11-19 07:46:04,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 35 transitions, 235 flow [2023-11-19 07:46:04,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 35 transitions, 221 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-19 07:46:04,526 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 185 flow [2023-11-19 07:46:04,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=330, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=185, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2023-11-19 07:46:04,527 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 11 predicate places. [2023-11-19 07:46:04,527 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 185 flow [2023-11-19 07:46:04,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 0 states have call successors, (0), 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 07:46:04,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:04,544 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:04,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:46:04,545 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:46:04,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:04,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1821753141, now seen corresponding path program 1 times [2023-11-19 07:46:04,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:04,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118301966] [2023-11-19 07:46:04,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:04,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:05,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:05,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:05,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118301966] [2023-11-19 07:46:05,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118301966] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:05,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:05,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:46:05,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151278674] [2023-11-19 07:46:05,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:05,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:46:05,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:05,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:46:05,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:46:05,646 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 330 [2023-11-19 07:46:05,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 185 flow. Second operand has 8 states, 8 states have (on average 147.875) internal successors, (1183), 8 states have internal predecessors, (1183), 0 states have call successors, (0), 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 07:46:05,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:05,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 330 [2023-11-19 07:46:05,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:05,885 INFO L124 PetriNetUnfolderBase]: 124/235 cut-off events. [2023-11-19 07:46:05,886 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2023-11-19 07:46:05,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 235 events. 124/235 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 852 event pairs, 43 based on Foata normal form. 8/216 useless extension candidates. Maximal degree in co-relation 670. Up to 179 conditions per place. [2023-11-19 07:46:05,889 INFO L140 encePairwiseOnDemand]: 320/330 looper letters, 30 selfloop transitions, 22 changer transitions 0/52 dead transitions. [2023-11-19 07:46:05,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 52 transitions, 369 flow [2023-11-19 07:46:05,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:46:05,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:46:05,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1073 transitions. [2023-11-19 07:46:05,894 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4645021645021645 [2023-11-19 07:46:05,894 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1073 transitions. [2023-11-19 07:46:05,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1073 transitions. [2023-11-19 07:46:05,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:05,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1073 transitions. [2023-11-19 07:46:05,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 153.28571428571428) internal successors, (1073), 7 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:05,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 330.0) internal successors, (2640), 8 states have internal predecessors, (2640), 0 states have call successors, (0), 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 07:46:05,906 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 330.0) internal successors, (2640), 8 states have internal predecessors, (2640), 0 states have call successors, (0), 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 07:46:05,907 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 185 flow. Second operand 7 states and 1073 transitions. [2023-11-19 07:46:05,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 52 transitions, 369 flow [2023-11-19 07:46:05,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 52 transitions, 355 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-19 07:46:05,911 INFO L231 Difference]: Finished difference. Result has 47 places, 44 transitions, 315 flow [2023-11-19 07:46:05,911 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=330, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=315, PETRI_PLACES=47, PETRI_TRANSITIONS=44} [2023-11-19 07:46:05,912 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 18 predicate places. [2023-11-19 07:46:05,913 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 315 flow [2023-11-19 07:46:05,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 147.875) internal successors, (1183), 8 states have internal predecessors, (1183), 0 states have call successors, (0), 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 07:46:05,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:05,914 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:05,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:46:05,914 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 07:46:05,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:05,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1818058249, now seen corresponding path program 1 times [2023-11-19 07:46:05,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:05,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432627160] [2023-11-19 07:46:05,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:05,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:06,674 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 07:46:06,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:06,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432627160] [2023-11-19 07:46:06,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432627160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:06,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:06,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:46:06,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460869296] [2023-11-19 07:46:06,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:06,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:46:06,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:06,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:46:06,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:46:06,923 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 330 [2023-11-19 07:46:06,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 315 flow. Second operand has 8 states, 8 states have (on average 147.875) internal successors, (1183), 8 states have internal predecessors, (1183), 0 states have call successors, (0), 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 07:46:06,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:06,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 330 [2023-11-19 07:46:06,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:07,371 INFO L124 PetriNetUnfolderBase]: 156/289 cut-off events. [2023-11-19 07:46:07,371 INFO L125 PetriNetUnfolderBase]: For 484/484 co-relation queries the response was YES. [2023-11-19 07:46:07,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 289 events. 156/289 cut-off events. For 484/484 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1104 event pairs, 29 based on Foata normal form. 8/266 useless extension candidates. Maximal degree in co-relation 1001. Up to 118 conditions per place. [2023-11-19 07:46:07,376 INFO L140 encePairwiseOnDemand]: 319/330 looper letters, 38 selfloop transitions, 46 changer transitions 4/88 dead transitions. [2023-11-19 07:46:07,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 88 transitions, 740 flow [2023-11-19 07:46:07,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:46:07,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-19 07:46:07,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1688 transitions. [2023-11-19 07:46:07,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4650137741046832 [2023-11-19 07:46:07,384 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1688 transitions. [2023-11-19 07:46:07,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1688 transitions. [2023-11-19 07:46:07,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:07,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1688 transitions. [2023-11-19 07:46:07,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 153.45454545454547) internal successors, (1688), 11 states have internal predecessors, (1688), 0 states have call successors, (0), 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 07:46:07,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 330.0) internal successors, (3960), 12 states have internal predecessors, (3960), 0 states have call successors, (0), 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 07:46:07,403 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 330.0) internal successors, (3960), 12 states have internal predecessors, (3960), 0 states have call successors, (0), 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 07:46:07,403 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 315 flow. Second operand 11 states and 1688 transitions. [2023-11-19 07:46:07,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 88 transitions, 740 flow [2023-11-19 07:46:07,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 88 transitions, 728 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-11-19 07:46:07,413 INFO L231 Difference]: Finished difference. Result has 58 places, 64 transitions, 585 flow [2023-11-19 07:46:07,414 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=330, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=585, PETRI_PLACES=58, PETRI_TRANSITIONS=64} [2023-11-19 07:46:07,416 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 29 predicate places. [2023-11-19 07:46:07,417 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 64 transitions, 585 flow [2023-11-19 07:46:07,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 147.875) internal successors, (1183), 8 states have internal predecessors, (1183), 0 states have call successors, (0), 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 07:46:07,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:07,418 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:07,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:46:07,419 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 07:46:07,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:07,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1821753138, now seen corresponding path program 1 times [2023-11-19 07:46:07,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:07,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822225086] [2023-11-19 07:46:07,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:07,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:08,244 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 07:46:08,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:08,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822225086] [2023-11-19 07:46:08,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822225086] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:08,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:08,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:46:08,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940527470] [2023-11-19 07:46:08,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:08,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:46:08,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:08,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:46:08,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:46:08,508 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 330 [2023-11-19 07:46:08,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 64 transitions, 585 flow. Second operand has 8 states, 8 states have (on average 147.875) internal successors, (1183), 8 states have internal predecessors, (1183), 0 states have call successors, (0), 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 07:46:08,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:08,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 330 [2023-11-19 07:46:08,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:08,849 INFO L124 PetriNetUnfolderBase]: 140/262 cut-off events. [2023-11-19 07:46:08,849 INFO L125 PetriNetUnfolderBase]: For 761/761 co-relation queries the response was YES. [2023-11-19 07:46:08,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1238 conditions, 262 events. 140/262 cut-off events. For 761/761 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 980 event pairs, 47 based on Foata normal form. 4/239 useless extension candidates. Maximal degree in co-relation 1093. Up to 215 conditions per place. [2023-11-19 07:46:08,853 INFO L140 encePairwiseOnDemand]: 320/330 looper letters, 44 selfloop transitions, 30 changer transitions 0/74 dead transitions. [2023-11-19 07:46:08,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 74 transitions, 777 flow [2023-11-19 07:46:08,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:46:08,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-19 07:46:08,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1373 transitions. [2023-11-19 07:46:08,860 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4622895622895623 [2023-11-19 07:46:08,860 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1373 transitions. [2023-11-19 07:46:08,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1373 transitions. [2023-11-19 07:46:08,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:08,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1373 transitions. [2023-11-19 07:46:08,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 152.55555555555554) internal successors, (1373), 9 states have internal predecessors, (1373), 0 states have call successors, (0), 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 07:46:08,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 330.0) internal successors, (3300), 10 states have internal predecessors, (3300), 0 states have call successors, (0), 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 07:46:08,874 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 330.0) internal successors, (3300), 10 states have internal predecessors, (3300), 0 states have call successors, (0), 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 07:46:08,874 INFO L175 Difference]: Start difference. First operand has 58 places, 64 transitions, 585 flow. Second operand 9 states and 1373 transitions. [2023-11-19 07:46:08,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 74 transitions, 777 flow [2023-11-19 07:46:08,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 74 transitions, 723 flow, removed 16 selfloop flow, removed 5 redundant places. [2023-11-19 07:46:08,883 INFO L231 Difference]: Finished difference. Result has 64 places, 67 transitions, 650 flow [2023-11-19 07:46:08,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=330, PETRI_DIFFERENCE_MINUEND_FLOW=535, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=650, PETRI_PLACES=64, PETRI_TRANSITIONS=67} [2023-11-19 07:46:08,886 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 35 predicate places. [2023-11-19 07:46:08,890 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 67 transitions, 650 flow [2023-11-19 07:46:08,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 147.875) internal successors, (1183), 8 states have internal predecessors, (1183), 0 states have call successors, (0), 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 07:46:08,891 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:08,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:08,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:46:08,892 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:46:08,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:08,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1818062898, now seen corresponding path program 2 times [2023-11-19 07:46:08,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:08,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467380708] [2023-11-19 07:46:08,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:08,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:09,863 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 07:46:09,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:09,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467380708] [2023-11-19 07:46:09,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467380708] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:09,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:09,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:46:09,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090421446] [2023-11-19 07:46:09,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:09,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:46:09,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:09,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:46:09,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:46:10,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 330 [2023-11-19 07:46:10,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 67 transitions, 650 flow. Second operand has 8 states, 8 states have (on average 147.875) internal successors, (1183), 8 states have internal predecessors, (1183), 0 states have call successors, (0), 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 07:46:10,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:10,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 330 [2023-11-19 07:46:10,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:10,686 INFO L124 PetriNetUnfolderBase]: 116/222 cut-off events. [2023-11-19 07:46:10,686 INFO L125 PetriNetUnfolderBase]: For 635/635 co-relation queries the response was YES. [2023-11-19 07:46:10,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1056 conditions, 222 events. 116/222 cut-off events. For 635/635 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 785 event pairs, 18 based on Foata normal form. 8/215 useless extension candidates. Maximal degree in co-relation 911. Up to 100 conditions per place. [2023-11-19 07:46:10,689 INFO L140 encePairwiseOnDemand]: 319/330 looper letters, 35 selfloop transitions, 47 changer transitions 2/84 dead transitions. [2023-11-19 07:46:10,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 84 transitions, 874 flow [2023-11-19 07:46:10,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:46:10,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-19 07:46:10,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1979 transitions. [2023-11-19 07:46:10,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4613053613053613 [2023-11-19 07:46:10,699 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1979 transitions. [2023-11-19 07:46:10,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1979 transitions. [2023-11-19 07:46:10,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:10,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1979 transitions. [2023-11-19 07:46:10,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 152.23076923076923) internal successors, (1979), 13 states have internal predecessors, (1979), 0 states have call successors, (0), 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 07:46:10,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 330.0) internal successors, (4620), 14 states have internal predecessors, (4620), 0 states have call successors, (0), 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 07:46:10,717 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 330.0) internal successors, (4620), 14 states have internal predecessors, (4620), 0 states have call successors, (0), 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 07:46:10,717 INFO L175 Difference]: Start difference. First operand has 64 places, 67 transitions, 650 flow. Second operand 13 states and 1979 transitions. [2023-11-19 07:46:10,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 84 transitions, 874 flow [2023-11-19 07:46:10,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 84 transitions, 815 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-11-19 07:46:10,728 INFO L231 Difference]: Finished difference. Result has 73 places, 68 transitions, 722 flow [2023-11-19 07:46:10,728 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=330, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=722, PETRI_PLACES=73, PETRI_TRANSITIONS=68} [2023-11-19 07:46:10,729 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 44 predicate places. [2023-11-19 07:46:10,730 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 68 transitions, 722 flow [2023-11-19 07:46:10,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 147.875) internal successors, (1183), 8 states have internal predecessors, (1183), 0 states have call successors, (0), 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 07:46:10,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:10,731 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:10,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:46:10,731 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 07:46:10,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:10,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1818062901, now seen corresponding path program 2 times [2023-11-19 07:46:10,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:10,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4740206] [2023-11-19 07:46:10,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:10,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:11,423 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 07:46:11,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:11,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4740206] [2023-11-19 07:46:11,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4740206] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:11,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:11,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:46:11,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647436742] [2023-11-19 07:46:11,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:11,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:46:11,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:11,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:46:11,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:46:11,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 330 [2023-11-19 07:46:11,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 68 transitions, 722 flow. Second operand has 8 states, 8 states have (on average 147.875) internal successors, (1183), 8 states have internal predecessors, (1183), 0 states have call successors, (0), 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 07:46:11,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:11,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 330 [2023-11-19 07:46:11,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:11,974 INFO L124 PetriNetUnfolderBase]: 104/202 cut-off events. [2023-11-19 07:46:11,974 INFO L125 PetriNetUnfolderBase]: For 741/741 co-relation queries the response was YES. [2023-11-19 07:46:11,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1067 conditions, 202 events. 104/202 cut-off events. For 741/741 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 696 event pairs, 11 based on Foata normal form. 4/195 useless extension candidates. Maximal degree in co-relation 940. Up to 96 conditions per place. [2023-11-19 07:46:11,978 INFO L140 encePairwiseOnDemand]: 320/330 looper letters, 30 selfloop transitions, 44 changer transitions 2/76 dead transitions. [2023-11-19 07:46:11,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 76 transitions, 898 flow [2023-11-19 07:46:11,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:46:11,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:46:11,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1072 transitions. [2023-11-19 07:46:11,983 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4640692640692641 [2023-11-19 07:46:11,983 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1072 transitions. [2023-11-19 07:46:11,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1072 transitions. [2023-11-19 07:46:11,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:11,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1072 transitions. [2023-11-19 07:46:11,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 153.14285714285714) internal successors, (1072), 7 states have internal predecessors, (1072), 0 states have call successors, (0), 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 07:46:11,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 330.0) internal successors, (2640), 8 states have internal predecessors, (2640), 0 states have call successors, (0), 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 07:46:11,993 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 330.0) internal successors, (2640), 8 states have internal predecessors, (2640), 0 states have call successors, (0), 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 07:46:11,993 INFO L175 Difference]: Start difference. First operand has 73 places, 68 transitions, 722 flow. Second operand 7 states and 1072 transitions. [2023-11-19 07:46:11,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 76 transitions, 898 flow [2023-11-19 07:46:12,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 76 transitions, 848 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-11-19 07:46:12,007 INFO L231 Difference]: Finished difference. Result has 74 places, 68 transitions, 785 flow [2023-11-19 07:46:12,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=330, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=785, PETRI_PLACES=74, PETRI_TRANSITIONS=68} [2023-11-19 07:46:12,010 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 45 predicate places. [2023-11-19 07:46:12,010 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 68 transitions, 785 flow [2023-11-19 07:46:12,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 147.875) internal successors, (1183), 8 states have internal predecessors, (1183), 0 states have call successors, (0), 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 07:46:12,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:12,011 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:12,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:46:12,011 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 07:46:12,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:12,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1818058251, now seen corresponding path program 3 times [2023-11-19 07:46:12,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:12,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683799707] [2023-11-19 07:46:12,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:12,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:12,640 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 07:46:12,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:12,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683799707] [2023-11-19 07:46:12,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683799707] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:12,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:12,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:46:12,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519117302] [2023-11-19 07:46:12,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:12,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:46:12,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:12,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:46:12,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:46:12,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 330 [2023-11-19 07:46:12,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 68 transitions, 785 flow. Second operand has 8 states, 8 states have (on average 147.875) internal successors, (1183), 8 states have internal predecessors, (1183), 0 states have call successors, (0), 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 07:46:12,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:12,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 330 [2023-11-19 07:46:12,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:13,133 INFO L124 PetriNetUnfolderBase]: 92/182 cut-off events. [2023-11-19 07:46:13,133 INFO L125 PetriNetUnfolderBase]: For 745/745 co-relation queries the response was YES. [2023-11-19 07:46:13,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1011 conditions, 182 events. 92/182 cut-off events. For 745/745 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 597 event pairs, 13 based on Foata normal form. 4/179 useless extension candidates. Maximal degree in co-relation 873. Up to 92 conditions per place. [2023-11-19 07:46:13,137 INFO L140 encePairwiseOnDemand]: 321/330 looper letters, 29 selfloop transitions, 42 changer transitions 2/73 dead transitions. [2023-11-19 07:46:13,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 73 transitions, 941 flow [2023-11-19 07:46:13,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:46:13,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:46:13,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1067 transitions. [2023-11-19 07:46:13,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46190476190476193 [2023-11-19 07:46:13,142 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1067 transitions. [2023-11-19 07:46:13,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1067 transitions. [2023-11-19 07:46:13,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:13,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1067 transitions. [2023-11-19 07:46:13,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 152.42857142857142) internal successors, (1067), 7 states have internal predecessors, (1067), 0 states have call successors, (0), 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 07:46:13,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 330.0) internal successors, (2640), 8 states have internal predecessors, (2640), 0 states have call successors, (0), 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 07:46:13,153 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 330.0) internal successors, (2640), 8 states have internal predecessors, (2640), 0 states have call successors, (0), 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 07:46:13,154 INFO L175 Difference]: Start difference. First operand has 74 places, 68 transitions, 785 flow. Second operand 7 states and 1067 transitions. [2023-11-19 07:46:13,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 73 transitions, 941 flow [2023-11-19 07:46:13,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 73 transitions, 879 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-11-19 07:46:13,166 INFO L231 Difference]: Finished difference. Result has 78 places, 68 transitions, 834 flow [2023-11-19 07:46:13,167 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=330, PETRI_DIFFERENCE_MINUEND_FLOW=723, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=834, PETRI_PLACES=78, PETRI_TRANSITIONS=68} [2023-11-19 07:46:13,168 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 49 predicate places. [2023-11-19 07:46:13,168 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 68 transitions, 834 flow [2023-11-19 07:46:13,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 147.875) internal successors, (1183), 8 states have internal predecessors, (1183), 0 states have call successors, (0), 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 07:46:13,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:13,169 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:13,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:46:13,169 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:46:13,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:13,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1651909195, now seen corresponding path program 1 times [2023-11-19 07:46:13,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:13,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879333058] [2023-11-19 07:46:13,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:13,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:13,741 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 07:46:13,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:13,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879333058] [2023-11-19 07:46:13,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879333058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:13,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:13,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:46:13,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639671396] [2023-11-19 07:46:13,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:13,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:46:13,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:13,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:46:13,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:46:13,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 330 [2023-11-19 07:46:13,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 68 transitions, 834 flow. Second operand has 7 states, 7 states have (on average 149.28571428571428) internal successors, (1045), 7 states have internal predecessors, (1045), 0 states have call successors, (0), 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 07:46:13,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:13,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 330 [2023-11-19 07:46:13,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:14,455 INFO L124 PetriNetUnfolderBase]: 112/243 cut-off events. [2023-11-19 07:46:14,455 INFO L125 PetriNetUnfolderBase]: For 947/947 co-relation queries the response was YES. [2023-11-19 07:46:14,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1261 conditions, 243 events. 112/243 cut-off events. For 947/947 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 988 event pairs, 9 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 1138. Up to 70 conditions per place. [2023-11-19 07:46:14,460 INFO L140 encePairwiseOnDemand]: 319/330 looper letters, 65 selfloop transitions, 45 changer transitions 6/116 dead transitions. [2023-11-19 07:46:14,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 116 transitions, 1316 flow [2023-11-19 07:46:14,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:46:14,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-19 07:46:14,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2009 transitions. [2023-11-19 07:46:14,468 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4682983682983683 [2023-11-19 07:46:14,468 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2009 transitions. [2023-11-19 07:46:14,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2009 transitions. [2023-11-19 07:46:14,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:14,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2009 transitions. [2023-11-19 07:46:14,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 154.53846153846155) internal successors, (2009), 13 states have internal predecessors, (2009), 0 states have call successors, (0), 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 07:46:14,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 330.0) internal successors, (4620), 14 states have internal predecessors, (4620), 0 states have call successors, (0), 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 07:46:14,504 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 330.0) internal successors, (4620), 14 states have internal predecessors, (4620), 0 states have call successors, (0), 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 07:46:14,505 INFO L175 Difference]: Start difference. First operand has 78 places, 68 transitions, 834 flow. Second operand 13 states and 2009 transitions. [2023-11-19 07:46:14,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 116 transitions, 1316 flow [2023-11-19 07:46:14,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 116 transitions, 1189 flow, removed 22 selfloop flow, removed 6 redundant places. [2023-11-19 07:46:14,518 INFO L231 Difference]: Finished difference. Result has 90 places, 83 transitions, 963 flow [2023-11-19 07:46:14,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=330, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=963, PETRI_PLACES=90, PETRI_TRANSITIONS=83} [2023-11-19 07:46:14,520 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 61 predicate places. [2023-11-19 07:46:14,521 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 83 transitions, 963 flow [2023-11-19 07:46:14,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 149.28571428571428) internal successors, (1045), 7 states have internal predecessors, (1045), 0 states have call successors, (0), 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 07:46:14,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:14,521 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:14,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:46:14,522 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 07:46:14,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:14,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1651950114, now seen corresponding path program 1 times [2023-11-19 07:46:14,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:14,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634262038] [2023-11-19 07:46:14,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:14,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:15,466 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 07:46:15,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:15,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634262038] [2023-11-19 07:46:15,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634262038] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:15,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:15,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:46:15,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687186665] [2023-11-19 07:46:15,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:15,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:46:15,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:15,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:46:15,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:46:16,006 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 330 [2023-11-19 07:46:16,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 83 transitions, 963 flow. Second operand has 10 states, 10 states have (on average 145.9) internal successors, (1459), 10 states have internal predecessors, (1459), 0 states have call successors, (0), 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 07:46:16,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:16,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 330 [2023-11-19 07:46:16,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:17,046 INFO L124 PetriNetUnfolderBase]: 170/393 cut-off events. [2023-11-19 07:46:17,046 INFO L125 PetriNetUnfolderBase]: For 2155/2155 co-relation queries the response was YES. [2023-11-19 07:46:17,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1990 conditions, 393 events. 170/393 cut-off events. For 2155/2155 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2036 event pairs, 22 based on Foata normal form. 15/408 useless extension candidates. Maximal degree in co-relation 1938. Up to 135 conditions per place. [2023-11-19 07:46:17,051 INFO L140 encePairwiseOnDemand]: 318/330 looper letters, 60 selfloop transitions, 97 changer transitions 14/171 dead transitions. [2023-11-19 07:46:17,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 171 transitions, 2114 flow [2023-11-19 07:46:17,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-19 07:46:17,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-11-19 07:46:17,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3728 transitions. [2023-11-19 07:46:17,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4518787878787879 [2023-11-19 07:46:17,069 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3728 transitions. [2023-11-19 07:46:17,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3728 transitions. [2023-11-19 07:46:17,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:17,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3728 transitions. [2023-11-19 07:46:17,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 149.12) internal successors, (3728), 25 states have internal predecessors, (3728), 0 states have call successors, (0), 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 07:46:17,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 330.0) internal successors, (8580), 26 states have internal predecessors, (8580), 0 states have call successors, (0), 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 07:46:17,105 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 330.0) internal successors, (8580), 26 states have internal predecessors, (8580), 0 states have call successors, (0), 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 07:46:17,105 INFO L175 Difference]: Start difference. First operand has 90 places, 83 transitions, 963 flow. Second operand 25 states and 3728 transitions. [2023-11-19 07:46:17,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 171 transitions, 2114 flow [2023-11-19 07:46:17,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 171 transitions, 2048 flow, removed 31 selfloop flow, removed 1 redundant places. [2023-11-19 07:46:17,124 INFO L231 Difference]: Finished difference. Result has 126 places, 138 transitions, 1935 flow [2023-11-19 07:46:17,125 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=330, PETRI_DIFFERENCE_MINUEND_FLOW=927, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1935, PETRI_PLACES=126, PETRI_TRANSITIONS=138} [2023-11-19 07:46:17,125 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 97 predicate places. [2023-11-19 07:46:17,126 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 138 transitions, 1935 flow [2023-11-19 07:46:17,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.9) internal successors, (1459), 10 states have internal predecessors, (1459), 0 states have call successors, (0), 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 07:46:17,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:17,127 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:17,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:46:17,127 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 07:46:17,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:17,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1649672544, now seen corresponding path program 2 times [2023-11-19 07:46:17,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:17,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311999600] [2023-11-19 07:46:17,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:17,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:17,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:18,160 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 07:46:18,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:18,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311999600] [2023-11-19 07:46:18,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311999600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:18,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:18,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:46:18,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175661085] [2023-11-19 07:46:18,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:18,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:46:18,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:18,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:46:18,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:46:18,603 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 330 [2023-11-19 07:46:18,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 138 transitions, 1935 flow. Second operand has 10 states, 10 states have (on average 145.9) internal successors, (1459), 10 states have internal predecessors, (1459), 0 states have call successors, (0), 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 07:46:18,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:18,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 330 [2023-11-19 07:46:18,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:19,381 INFO L124 PetriNetUnfolderBase]: 184/428 cut-off events. [2023-11-19 07:46:19,381 INFO L125 PetriNetUnfolderBase]: For 3318/3318 co-relation queries the response was YES. [2023-11-19 07:46:19,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2536 conditions, 428 events. 184/428 cut-off events. For 3318/3318 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2299 event pairs, 21 based on Foata normal form. 3/431 useless extension candidates. Maximal degree in co-relation 2474. Up to 195 conditions per place. [2023-11-19 07:46:19,390 INFO L140 encePairwiseOnDemand]: 317/330 looper letters, 51 selfloop transitions, 114 changer transitions 4/169 dead transitions. [2023-11-19 07:46:19,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 169 transitions, 2525 flow [2023-11-19 07:46:19,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-19 07:46:19,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-19 07:46:19,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2683 transitions. [2023-11-19 07:46:19,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4516835016835017 [2023-11-19 07:46:19,399 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2683 transitions. [2023-11-19 07:46:19,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2683 transitions. [2023-11-19 07:46:19,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:19,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2683 transitions. [2023-11-19 07:46:19,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 149.05555555555554) internal successors, (2683), 18 states have internal predecessors, (2683), 0 states have call successors, (0), 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 07:46:19,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 330.0) internal successors, (6270), 19 states have internal predecessors, (6270), 0 states have call successors, (0), 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 07:46:19,427 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 330.0) internal successors, (6270), 19 states have internal predecessors, (6270), 0 states have call successors, (0), 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 07:46:19,428 INFO L175 Difference]: Start difference. First operand has 126 places, 138 transitions, 1935 flow. Second operand 18 states and 2683 transitions. [2023-11-19 07:46:19,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 169 transitions, 2525 flow [2023-11-19 07:46:19,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 169 transitions, 2390 flow, removed 46 selfloop flow, removed 5 redundant places. [2023-11-19 07:46:19,474 INFO L231 Difference]: Finished difference. Result has 145 places, 155 transitions, 2389 flow [2023-11-19 07:46:19,474 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=330, PETRI_DIFFERENCE_MINUEND_FLOW=1831, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2389, PETRI_PLACES=145, PETRI_TRANSITIONS=155} [2023-11-19 07:46:19,476 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 116 predicate places. [2023-11-19 07:46:19,476 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 155 transitions, 2389 flow [2023-11-19 07:46:19,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.9) internal successors, (1459), 10 states have internal predecessors, (1459), 0 states have call successors, (0), 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 07:46:19,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:19,477 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:19,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:46:19,477 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:46:19,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:19,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1651950115, now seen corresponding path program 2 times [2023-11-19 07:46:19,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:19,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029949336] [2023-11-19 07:46:19,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:19,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:20,661 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 07:46:20,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:20,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029949336] [2023-11-19 07:46:20,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029949336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:20,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:20,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:46:20,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879686803] [2023-11-19 07:46:20,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:20,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:46:20,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:20,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:46:20,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:46:21,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 330 [2023-11-19 07:46:21,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 155 transitions, 2389 flow. Second operand has 10 states, 10 states have (on average 143.9) internal successors, (1439), 10 states have internal predecessors, (1439), 0 states have call successors, (0), 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 07:46:21,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:21,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 330 [2023-11-19 07:46:21,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:21,796 INFO L124 PetriNetUnfolderBase]: 179/418 cut-off events. [2023-11-19 07:46:21,797 INFO L125 PetriNetUnfolderBase]: For 4492/4492 co-relation queries the response was YES. [2023-11-19 07:46:21,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2717 conditions, 418 events. 179/418 cut-off events. For 4492/4492 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2242 event pairs, 38 based on Foata normal form. 5/423 useless extension candidates. Maximal degree in co-relation 2648. Up to 236 conditions per place. [2023-11-19 07:46:21,804 INFO L140 encePairwiseOnDemand]: 319/330 looper letters, 93 selfloop transitions, 76 changer transitions 8/177 dead transitions. [2023-11-19 07:46:21,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 177 transitions, 2834 flow [2023-11-19 07:46:21,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 07:46:21,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-19 07:46:21,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2508 transitions. [2023-11-19 07:46:21,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4470588235294118 [2023-11-19 07:46:21,811 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2508 transitions. [2023-11-19 07:46:21,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2508 transitions. [2023-11-19 07:46:21,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:21,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2508 transitions. [2023-11-19 07:46:21,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 147.52941176470588) internal successors, (2508), 17 states have internal predecessors, (2508), 0 states have call successors, (0), 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 07:46:21,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 330.0) internal successors, (5940), 18 states have internal predecessors, (5940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:21,832 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 330.0) internal successors, (5940), 18 states have internal predecessors, (5940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:21,832 INFO L175 Difference]: Start difference. First operand has 145 places, 155 transitions, 2389 flow. Second operand 17 states and 2508 transitions. [2023-11-19 07:46:21,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 177 transitions, 2834 flow [2023-11-19 07:46:21,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 177 transitions, 2695 flow, removed 11 selfloop flow, removed 11 redundant places. [2023-11-19 07:46:21,879 INFO L231 Difference]: Finished difference. Result has 152 places, 156 transitions, 2423 flow [2023-11-19 07:46:21,880 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=330, PETRI_DIFFERENCE_MINUEND_FLOW=2225, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2423, PETRI_PLACES=152, PETRI_TRANSITIONS=156} [2023-11-19 07:46:21,881 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 123 predicate places. [2023-11-19 07:46:21,882 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 156 transitions, 2423 flow [2023-11-19 07:46:21,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 143.9) internal successors, (1439), 10 states have internal predecessors, (1439), 0 states have call successors, (0), 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 07:46:21,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:21,883 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:21,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:46:21,883 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:46:21,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:21,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1649672545, now seen corresponding path program 3 times [2023-11-19 07:46:21,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:21,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200390567] [2023-11-19 07:46:21,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:21,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:22,734 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 07:46:22,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:22,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200390567] [2023-11-19 07:46:22,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200390567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:22,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:22,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:46:22,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604901587] [2023-11-19 07:46:22,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:22,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:46:22,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:22,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:46:22,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:46:23,272 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 330 [2023-11-19 07:46:23,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 156 transitions, 2423 flow. Second operand has 10 states, 10 states have (on average 143.9) internal successors, (1439), 10 states have internal predecessors, (1439), 0 states have call successors, (0), 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 07:46:23,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:23,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 330 [2023-11-19 07:46:23,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:23,880 INFO L124 PetriNetUnfolderBase]: 176/412 cut-off events. [2023-11-19 07:46:23,880 INFO L125 PetriNetUnfolderBase]: For 4407/4407 co-relation queries the response was YES. [2023-11-19 07:46:23,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2714 conditions, 412 events. 176/412 cut-off events. For 4407/4407 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2187 event pairs, 45 based on Foata normal form. 3/415 useless extension candidates. Maximal degree in co-relation 2645. Up to 318 conditions per place. [2023-11-19 07:46:23,888 INFO L140 encePairwiseOnDemand]: 318/330 looper letters, 91 selfloop transitions, 69 changer transitions 4/164 dead transitions. [2023-11-19 07:46:23,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 164 transitions, 2762 flow [2023-11-19 07:46:23,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:46:23,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-19 07:46:23,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2063 transitions. [2023-11-19 07:46:23,896 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4465367965367965 [2023-11-19 07:46:23,897 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2063 transitions. [2023-11-19 07:46:23,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2063 transitions. [2023-11-19 07:46:23,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:23,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2063 transitions. [2023-11-19 07:46:23,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 147.35714285714286) internal successors, (2063), 14 states have internal predecessors, (2063), 0 states have call successors, (0), 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 07:46:23,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 330.0) internal successors, (4950), 15 states have internal predecessors, (4950), 0 states have call successors, (0), 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 07:46:23,912 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 330.0) internal successors, (4950), 15 states have internal predecessors, (4950), 0 states have call successors, (0), 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 07:46:23,912 INFO L175 Difference]: Start difference. First operand has 152 places, 156 transitions, 2423 flow. Second operand 14 states and 2063 transitions. [2023-11-19 07:46:23,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 164 transitions, 2762 flow [2023-11-19 07:46:23,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 164 transitions, 2653 flow, removed 16 selfloop flow, removed 10 redundant places. [2023-11-19 07:46:23,956 INFO L231 Difference]: Finished difference. Result has 155 places, 152 transitions, 2405 flow [2023-11-19 07:46:23,957 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=330, PETRI_DIFFERENCE_MINUEND_FLOW=2267, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2405, PETRI_PLACES=155, PETRI_TRANSITIONS=152} [2023-11-19 07:46:23,958 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 126 predicate places. [2023-11-19 07:46:23,958 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 152 transitions, 2405 flow [2023-11-19 07:46:23,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 143.9) internal successors, (1439), 10 states have internal predecessors, (1439), 0 states have call successors, (0), 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 07:46:23,959 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:23,959 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:23,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:46:23,960 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 07:46:23,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:23,960 INFO L85 PathProgramCache]: Analyzing trace with hash 659020656, now seen corresponding path program 1 times [2023-11-19 07:46:23,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:23,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624799333] [2023-11-19 07:46:23,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:23,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:24,885 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 07:46:24,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:24,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624799333] [2023-11-19 07:46:24,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624799333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:24,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:24,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:46:24,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167592735] [2023-11-19 07:46:24,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:24,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:46:24,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:24,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:46:24,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:46:25,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 330 [2023-11-19 07:46:25,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 152 transitions, 2405 flow. Second operand has 10 states, 10 states have (on average 144.0) internal successors, (1440), 10 states have internal predecessors, (1440), 0 states have call successors, (0), 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 07:46:25,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:25,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 330 [2023-11-19 07:46:25,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:26,212 INFO L124 PetriNetUnfolderBase]: 172/403 cut-off events. [2023-11-19 07:46:26,213 INFO L125 PetriNetUnfolderBase]: For 4423/4423 co-relation queries the response was YES. [2023-11-19 07:46:26,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2687 conditions, 403 events. 172/403 cut-off events. For 4423/4423 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2115 event pairs, 40 based on Foata normal form. 5/408 useless extension candidates. Maximal degree in co-relation 2619. Up to 271 conditions per place. [2023-11-19 07:46:26,219 INFO L140 encePairwiseOnDemand]: 318/330 looper letters, 97 selfloop transitions, 77 changer transitions 5/179 dead transitions. [2023-11-19 07:46:26,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 179 transitions, 3024 flow [2023-11-19 07:46:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-19 07:46:26,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-19 07:46:26,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2359 transitions. [2023-11-19 07:46:26,225 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.446780303030303 [2023-11-19 07:46:26,225 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2359 transitions. [2023-11-19 07:46:26,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2359 transitions. [2023-11-19 07:46:26,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:26,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2359 transitions. [2023-11-19 07:46:26,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 147.4375) internal successors, (2359), 16 states have internal predecessors, (2359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:46:26,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 330.0) internal successors, (5610), 17 states have internal predecessors, (5610), 0 states have call successors, (0), 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 07:46:26,245 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 330.0) internal successors, (5610), 17 states have internal predecessors, (5610), 0 states have call successors, (0), 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 07:46:26,245 INFO L175 Difference]: Start difference. First operand has 155 places, 152 transitions, 2405 flow. Second operand 16 states and 2359 transitions. [2023-11-19 07:46:26,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 179 transitions, 3024 flow [2023-11-19 07:46:26,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 179 transitions, 2919 flow, removed 11 selfloop flow, removed 8 redundant places. [2023-11-19 07:46:26,287 INFO L231 Difference]: Finished difference. Result has 166 places, 165 transitions, 2705 flow [2023-11-19 07:46:26,288 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=330, PETRI_DIFFERENCE_MINUEND_FLOW=2276, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2705, PETRI_PLACES=166, PETRI_TRANSITIONS=165} [2023-11-19 07:46:26,290 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 137 predicate places. [2023-11-19 07:46:26,290 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 165 transitions, 2705 flow [2023-11-19 07:46:26,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 144.0) internal successors, (1440), 10 states have internal predecessors, (1440), 0 states have call successors, (0), 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 07:46:26,291 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:26,291 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:26,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 07:46:26,292 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 07:46:26,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:26,292 INFO L85 PathProgramCache]: Analyzing trace with hash -893272481, now seen corresponding path program 1 times [2023-11-19 07:46:26,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:26,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184204060] [2023-11-19 07:46:26,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:26,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:27,201 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 07:46:27,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:27,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184204060] [2023-11-19 07:46:27,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184204060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:27,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:27,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:46:27,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904782783] [2023-11-19 07:46:27,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:27,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:46:27,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:27,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:46:27,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:46:27,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 330 [2023-11-19 07:46:27,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 165 transitions, 2705 flow. Second operand has 10 states, 10 states have (on average 145.9) internal successors, (1459), 10 states have internal predecessors, (1459), 0 states have call successors, (0), 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 07:46:27,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:27,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 330 [2023-11-19 07:46:27,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:28,423 INFO L124 PetriNetUnfolderBase]: 187/446 cut-off events. [2023-11-19 07:46:28,424 INFO L125 PetriNetUnfolderBase]: For 5393/5393 co-relation queries the response was YES. [2023-11-19 07:46:28,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3131 conditions, 446 events. 187/446 cut-off events. For 5393/5393 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2469 event pairs, 35 based on Foata normal form. 2/448 useless extension candidates. Maximal degree in co-relation 3059. Up to 297 conditions per place. [2023-11-19 07:46:28,431 INFO L140 encePairwiseOnDemand]: 318/330 looper letters, 113 selfloop transitions, 82 changer transitions 15/210 dead transitions. [2023-11-19 07:46:28,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 210 transitions, 3639 flow [2023-11-19 07:46:28,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-19 07:46:28,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-19 07:46:28,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2693 transitions. [2023-11-19 07:46:28,437 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45336700336700336 [2023-11-19 07:46:28,438 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2693 transitions. [2023-11-19 07:46:28,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2693 transitions. [2023-11-19 07:46:28,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:28,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2693 transitions. [2023-11-19 07:46:28,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 149.61111111111111) internal successors, (2693), 18 states have internal predecessors, (2693), 0 states have call successors, (0), 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 07:46:28,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 330.0) internal successors, (6270), 19 states have internal predecessors, (6270), 0 states have call successors, (0), 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 07:46:28,454 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 330.0) internal successors, (6270), 19 states have internal predecessors, (6270), 0 states have call successors, (0), 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 07:46:28,454 INFO L175 Difference]: Start difference. First operand has 166 places, 165 transitions, 2705 flow. Second operand 18 states and 2693 transitions. [2023-11-19 07:46:28,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 210 transitions, 3639 flow [2023-11-19 07:46:28,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 210 transitions, 3371 flow, removed 43 selfloop flow, removed 11 redundant places. [2023-11-19 07:46:28,506 INFO L231 Difference]: Finished difference. Result has 176 places, 180 transitions, 2990 flow [2023-11-19 07:46:28,507 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=330, PETRI_DIFFERENCE_MINUEND_FLOW=2501, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2990, PETRI_PLACES=176, PETRI_TRANSITIONS=180} [2023-11-19 07:46:28,508 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 147 predicate places. [2023-11-19 07:46:28,508 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 180 transitions, 2990 flow [2023-11-19 07:46:28,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.9) internal successors, (1459), 10 states have internal predecessors, (1459), 0 states have call successors, (0), 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 07:46:28,509 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:28,509 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:28,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 07:46:28,509 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 07:46:28,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:28,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1645694005, now seen corresponding path program 4 times [2023-11-19 07:46:28,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:28,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971189676] [2023-11-19 07:46:28,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:28,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:29,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:29,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:29,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971189676] [2023-11-19 07:46:29,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971189676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:29,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:29,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:46:29,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592377701] [2023-11-19 07:46:29,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:29,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:46:29,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:29,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:46:29,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:46:29,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 330 [2023-11-19 07:46:29,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 180 transitions, 2990 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 07:46:29,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:29,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 330 [2023-11-19 07:46:29,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand