./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee50104-c244-4c16-88be-1d386b3b0db1/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee50104-c244-4c16-88be-1d386b3b0db1/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee50104-c244-4c16-88be-1d386b3b0db1/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee50104-c244-4c16-88be-1d386b3b0db1/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee50104-c244-4c16-88be-1d386b3b0db1/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee50104-c244-4c16-88be-1d386b3b0db1/bin/uautomizer-verify-uTZkv6EMXl --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 a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:15:55,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:15:55,697 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee50104-c244-4c16-88be-1d386b3b0db1/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:15:55,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:15:55,704 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:15:55,729 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:15:55,730 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:15:55,730 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:15:55,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:15:55,732 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:15:55,733 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:15:55,733 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:15:55,734 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:15:55,734 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:15:55,735 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:15:55,735 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:15:55,736 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:15:55,737 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:15:55,737 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:15:55,738 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:15:55,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:15:55,742 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:15:55,743 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:15:55,743 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:15:55,744 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:15:55,744 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:15:55,745 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:15:55,745 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:15:55,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:15:55,746 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:15:55,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:55,747 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:15:55,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:15:55,748 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:15:55,749 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:15:55,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:15:55,750 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:15:55,750 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:15:55,750 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:15:55,750 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:15:55,751 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:15:55,751 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_1ee50104-c244-4c16-88be-1d386b3b0db1/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee50104-c244-4c16-88be-1d386b3b0db1/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 [2023-11-12 02:15:56,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:15:56,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:15:56,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:15:56,047 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:15:56,048 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:15:56,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee50104-c244-4c16-88be-1d386b3b0db1/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2023-11-12 02:15:59,220 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:15:59,658 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:15:59,659 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee50104-c244-4c16-88be-1d386b3b0db1/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2023-11-12 02:15:59,692 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee50104-c244-4c16-88be-1d386b3b0db1/bin/uautomizer-verify-uTZkv6EMXl/data/1ec36eda8/57df3ca06b8b492daa4fab5b48e32b77/FLAG8a93a7762 [2023-11-12 02:15:59,714 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee50104-c244-4c16-88be-1d386b3b0db1/bin/uautomizer-verify-uTZkv6EMXl/data/1ec36eda8/57df3ca06b8b492daa4fab5b48e32b77 [2023-11-12 02:15:59,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:15:59,724 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:15:59,727 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:59,727 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:15:59,733 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:15:59,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:59" (1/1) ... [2023-11-12 02:15:59,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@745c5fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:59, skipping insertion in model container [2023-11-12 02:15:59,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:59" (1/1) ... [2023-11-12 02:15:59,838 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:16:00,038 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 02:16:00,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:16:00,752 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:16:00,767 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 02:16:00,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:16:01,114 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:16:01,115 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:16:01,115 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:16:01,123 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:16:01,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:01 WrapperNode [2023-11-12 02:16:01,124 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:16:01,126 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:16:01,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:16:01,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:16:01,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:01" (1/1) ... [2023-11-12 02:16:01,180 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:01" (1/1) ... [2023-11-12 02:16:01,222 INFO L138 Inliner]: procedures = 469, calls = 64, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 162 [2023-11-12 02:16:01,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:16:01,224 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:16:01,224 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:16:01,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:16:01,234 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:01" (1/1) ... [2023-11-12 02:16:01,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:01" (1/1) ... [2023-11-12 02:16:01,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:01" (1/1) ... [2023-11-12 02:16:01,240 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:01" (1/1) ... [2023-11-12 02:16:01,261 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:01" (1/1) ... [2023-11-12 02:16:01,264 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:01" (1/1) ... [2023-11-12 02:16:01,270 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:01" (1/1) ... [2023-11-12 02:16:01,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:01" (1/1) ... [2023-11-12 02:16:01,281 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:16:01,282 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:16:01,282 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:16:01,283 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:16:01,284 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:01" (1/1) ... [2023-11-12 02:16:01,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:16:01,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee50104-c244-4c16-88be-1d386b3b0db1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:01,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee50104-c244-4c16-88be-1d386b3b0db1/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:01,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee50104-c244-4c16-88be-1d386b3b0db1/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:16:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:16:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:16:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:16:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:16:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:16:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:16:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:16:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:16:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:16:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-12 02:16:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-12 02:16:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:16:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:16:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:16:01,365 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:16:01,708 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:16:01,711 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:16:02,043 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:16:02,152 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:16:02,152 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:16:02,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:16:02 BoogieIcfgContainer [2023-11-12 02:16:02,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:16:02,157 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:16:02,158 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:16:02,161 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:16:02,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:15:59" (1/3) ... [2023-11-12 02:16:02,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41e64fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:16:02, skipping insertion in model container [2023-11-12 02:16:02,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:01" (2/3) ... [2023-11-12 02:16:02,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41e64fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:16:02, skipping insertion in model container [2023-11-12 02:16:02,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:16:02" (3/3) ... [2023-11-12 02:16:02,164 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2023-11-12 02:16:02,174 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:16:02,185 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:16:02,186 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-12 02:16:02,186 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:16:02,296 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-12 02:16:02,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 195 transitions, 404 flow [2023-11-12 02:16:02,464 INFO L124 PetriNetUnfolderBase]: 14/249 cut-off events. [2023-11-12 02:16:02,466 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:16:02,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 249 events. 14/249 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 496 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 124. Up to 4 conditions per place. [2023-11-12 02:16:02,475 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 195 transitions, 404 flow [2023-11-12 02:16:02,486 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 150 transitions, 309 flow [2023-11-12 02:16:02,491 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:16:02,502 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 150 transitions, 309 flow [2023-11-12 02:16:02,506 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 150 transitions, 309 flow [2023-11-12 02:16:02,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 150 transitions, 309 flow [2023-11-12 02:16:02,566 INFO L124 PetriNetUnfolderBase]: 4/150 cut-off events. [2023-11-12 02:16:02,566 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 02:16:02,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 150 events. 4/150 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 189 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 107. Up to 2 conditions per place. [2023-11-12 02:16:02,572 INFO L119 LiptonReduction]: Number of co-enabled transitions 5580 [2023-11-12 02:16:12,444 INFO L134 LiptonReduction]: Checked pairs total: 12904 [2023-11-12 02:16:12,445 INFO L136 LiptonReduction]: Total number of compositions: 142 [2023-11-12 02:16:12,462 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:16:12,470 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;@10ac05ed, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:16:12,470 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-12 02:16:12,475 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:16:12,475 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-12 02:16:12,475 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:16:12,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:12,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:16:12,477 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-12 02:16:12,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:12,483 INFO L85 PathProgramCache]: Analyzing trace with hash 673251767, now seen corresponding path program 1 times [2023-11-12 02:16:12,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:12,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143014889] [2023-11-12 02:16:12,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:12,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:13,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:13,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:13,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143014889] [2023-11-12 02:16:13,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143014889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:13,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:13,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:16:13,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82293062] [2023-11-12 02:16:13,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:13,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:16:13,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:13,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:16:13,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:16:13,925 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 337 [2023-11-12 02:16:13,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 73 flow. Second operand has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:13,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:13,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 337 [2023-11-12 02:16:13,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:14,439 INFO L124 PetriNetUnfolderBase]: 1195/1938 cut-off events. [2023-11-12 02:16:14,440 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-11-12 02:16:14,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3898 conditions, 1938 events. 1195/1938 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 9161 event pairs, 1190 based on Foata normal form. 0/1516 useless extension candidates. Maximal degree in co-relation 3820. Up to 1926 conditions per place. [2023-11-12 02:16:14,462 INFO L140 encePairwiseOnDemand]: 328/337 looper letters, 29 selfloop transitions, 8 changer transitions 0/38 dead transitions. [2023-11-12 02:16:14,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 38 transitions, 159 flow [2023-11-12 02:16:14,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:16:14,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:16:14,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 976 transitions. [2023-11-12 02:16:14,489 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4826904055390702 [2023-11-12 02:16:14,490 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 976 transitions. [2023-11-12 02:16:14,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 976 transitions. [2023-11-12 02:16:14,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:14,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 976 transitions. [2023-11-12 02:16:14,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:14,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:14,518 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:14,522 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 73 flow. Second operand 6 states and 976 transitions. [2023-11-12 02:16:14,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 38 transitions, 159 flow [2023-11-12 02:16:14,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 38 transitions, 154 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-12 02:16:14,532 INFO L231 Difference]: Finished difference. Result has 43 places, 37 transitions, 115 flow [2023-11-12 02:16:14,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=115, PETRI_PLACES=43, PETRI_TRANSITIONS=37} [2023-11-12 02:16:14,540 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 5 predicate places. [2023-11-12 02:16:14,541 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 37 transitions, 115 flow [2023-11-12 02:16:14,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:14,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:14,542 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:16:14,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:16:14,543 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-12 02:16:14,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:14,554 INFO L85 PathProgramCache]: Analyzing trace with hash -604537935, now seen corresponding path program 1 times [2023-11-12 02:16:14,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:14,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400271888] [2023-11-12 02:16:14,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:14,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:15,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:15,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:15,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400271888] [2023-11-12 02:16:15,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400271888] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:15,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:15,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:16:15,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076854313] [2023-11-12 02:16:15,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:15,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:16:15,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:15,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:16:15,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:16:15,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 337 [2023-11-12 02:16:15,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 37 transitions, 115 flow. Second operand has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:15,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:15,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 337 [2023-11-12 02:16:15,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:15,903 INFO L124 PetriNetUnfolderBase]: 1210/1962 cut-off events. [2023-11-12 02:16:15,903 INFO L125 PetriNetUnfolderBase]: For 354/354 co-relation queries the response was YES. [2023-11-12 02:16:15,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4414 conditions, 1962 events. 1210/1962 cut-off events. For 354/354 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 9198 event pairs, 894 based on Foata normal form. 3/1632 useless extension candidates. Maximal degree in co-relation 3748. Up to 1929 conditions per place. [2023-11-12 02:16:15,918 INFO L140 encePairwiseOnDemand]: 327/337 looper letters, 36 selfloop transitions, 17 changer transitions 0/54 dead transitions. [2023-11-12 02:16:15,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 54 transitions, 269 flow [2023-11-12 02:16:15,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:16:15,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:16:15,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 982 transitions. [2023-11-12 02:16:15,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4856577645895153 [2023-11-12 02:16:15,924 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 982 transitions. [2023-11-12 02:16:15,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 982 transitions. [2023-11-12 02:16:15,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:15,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 982 transitions. [2023-11-12 02:16:15,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.66666666666666) internal successors, (982), 6 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:15,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:15,939 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:15,940 INFO L175 Difference]: Start difference. First operand has 43 places, 37 transitions, 115 flow. Second operand 6 states and 982 transitions. [2023-11-12 02:16:15,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 54 transitions, 269 flow [2023-11-12 02:16:15,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 267 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:16:15,945 INFO L231 Difference]: Finished difference. Result has 49 places, 47 transitions, 203 flow [2023-11-12 02:16:15,950 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=203, PETRI_PLACES=49, PETRI_TRANSITIONS=47} [2023-11-12 02:16:15,951 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 11 predicate places. [2023-11-12 02:16:15,952 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 47 transitions, 203 flow [2023-11-12 02:16:15,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:15,953 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:15,953 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:16:15,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:16:15,953 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-12 02:16:15,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:15,956 INFO L85 PathProgramCache]: Analyzing trace with hash -604028295, now seen corresponding path program 2 times [2023-11-12 02:16:15,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:15,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245695551] [2023-11-12 02:16:15,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:15,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:16,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:16,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:16,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245695551] [2023-11-12 02:16:16,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245695551] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:16,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:16,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:16:16,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822529056] [2023-11-12 02:16:16,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:16,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:16:16,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:16,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:16:16,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:16:16,906 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 337 [2023-11-12 02:16:16,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 47 transitions, 203 flow. Second operand has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:16,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:16,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 337 [2023-11-12 02:16:16,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:17,446 INFO L124 PetriNetUnfolderBase]: 1200/1946 cut-off events. [2023-11-12 02:16:17,446 INFO L125 PetriNetUnfolderBase]: For 1184/1184 co-relation queries the response was YES. [2023-11-12 02:16:17,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5009 conditions, 1946 events. 1200/1946 cut-off events. For 1184/1184 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9177 event pairs, 772 based on Foata normal form. 3/1619 useless extension candidates. Maximal degree in co-relation 4199. Up to 1901 conditions per place. [2023-11-12 02:16:17,461 INFO L140 encePairwiseOnDemand]: 328/337 looper letters, 38 selfloop transitions, 20 changer transitions 0/59 dead transitions. [2023-11-12 02:16:17,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 59 transitions, 363 flow [2023-11-12 02:16:17,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:16:17,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:16:17,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 981 transitions. [2023-11-12 02:16:17,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48516320474777447 [2023-11-12 02:16:17,466 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 981 transitions. [2023-11-12 02:16:17,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 981 transitions. [2023-11-12 02:16:17,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:17,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 981 transitions. [2023-11-12 02:16:17,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.5) internal successors, (981), 6 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:17,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:17,478 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:17,478 INFO L175 Difference]: Start difference. First operand has 49 places, 47 transitions, 203 flow. Second operand 6 states and 981 transitions. [2023-11-12 02:16:17,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 59 transitions, 363 flow [2023-11-12 02:16:17,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 59 transitions, 347 flow, removed 7 selfloop flow, removed 1 redundant places. [2023-11-12 02:16:17,484 INFO L231 Difference]: Finished difference. Result has 54 places, 52 transitions, 271 flow [2023-11-12 02:16:17,485 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=271, PETRI_PLACES=54, PETRI_TRANSITIONS=52} [2023-11-12 02:16:17,485 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 16 predicate places. [2023-11-12 02:16:17,486 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 52 transitions, 271 flow [2023-11-12 02:16:17,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:17,487 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:17,487 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:17,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:16:17,488 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-12 02:16:17,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:17,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1564713575, now seen corresponding path program 1 times [2023-11-12 02:16:17,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:17,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357701064] [2023-11-12 02:16:17,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:17,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:17,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:17,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:17,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357701064] [2023-11-12 02:16:17,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357701064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:17,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:17,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:16:17,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341477884] [2023-11-12 02:16:17,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:17,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:16:17,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:17,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:16:17,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:16:18,091 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 337 [2023-11-12 02:16:18,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 52 transitions, 271 flow. Second operand has 6 states, 6 states have (on average 156.16666666666666) internal successors, (937), 6 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:18,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:18,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 337 [2023-11-12 02:16:18,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:18,538 INFO L124 PetriNetUnfolderBase]: 1192/1934 cut-off events. [2023-11-12 02:16:18,538 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-11-12 02:16:18,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4992 conditions, 1934 events. 1192/1934 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 9127 event pairs, 863 based on Foata normal form. 0/1608 useless extension candidates. Maximal degree in co-relation 4236. Up to 1906 conditions per place. [2023-11-12 02:16:18,575 INFO L140 encePairwiseOnDemand]: 328/337 looper letters, 45 selfloop transitions, 22 changer transitions 0/68 dead transitions. [2023-11-12 02:16:18,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 68 transitions, 503 flow [2023-11-12 02:16:18,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:16:18,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:16:18,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 979 transitions. [2023-11-12 02:16:18,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48417408506429277 [2023-11-12 02:16:18,581 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 979 transitions. [2023-11-12 02:16:18,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 979 transitions. [2023-11-12 02:16:18,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:18,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 979 transitions. [2023-11-12 02:16:18,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:18,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:18,591 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:18,591 INFO L175 Difference]: Start difference. First operand has 54 places, 52 transitions, 271 flow. Second operand 6 states and 979 transitions. [2023-11-12 02:16:18,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 68 transitions, 503 flow [2023-11-12 02:16:18,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 68 transitions, 478 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-11-12 02:16:18,597 INFO L231 Difference]: Finished difference. Result has 60 places, 64 transitions, 396 flow [2023-11-12 02:16:18,597 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=396, PETRI_PLACES=60, PETRI_TRANSITIONS=64} [2023-11-12 02:16:18,598 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 22 predicate places. [2023-11-12 02:16:18,598 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 64 transitions, 396 flow [2023-11-12 02:16:18,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.16666666666666) internal successors, (937), 6 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:18,599 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:18,599 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:18,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:16:18,600 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-12 02:16:18,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:18,600 INFO L85 PathProgramCache]: Analyzing trace with hash -650607529, now seen corresponding path program 1 times [2023-11-12 02:16:18,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:18,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153634458] [2023-11-12 02:16:18,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:18,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:19,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:19,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:19,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153634458] [2023-11-12 02:16:19,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153634458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:19,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:19,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:16:19,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529386913] [2023-11-12 02:16:19,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:19,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:16:19,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:19,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:16:19,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:16:19,405 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 337 [2023-11-12 02:16:19,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 64 transitions, 396 flow. Second operand has 7 states, 7 states have (on average 155.14285714285714) internal successors, (1086), 7 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:19,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:19,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 337 [2023-11-12 02:16:19,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:19,962 INFO L124 PetriNetUnfolderBase]: 1184/1922 cut-off events. [2023-11-12 02:16:19,962 INFO L125 PetriNetUnfolderBase]: For 1207/1207 co-relation queries the response was YES. [2023-11-12 02:16:19,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5211 conditions, 1922 events. 1184/1922 cut-off events. For 1207/1207 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 9061 event pairs, 671 based on Foata normal form. 2/1688 useless extension candidates. Maximal degree in co-relation 4394. Up to 1853 conditions per place. [2023-11-12 02:16:19,978 INFO L140 encePairwiseOnDemand]: 329/337 looper letters, 58 selfloop transitions, 18 changer transitions 0/77 dead transitions. [2023-11-12 02:16:19,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 77 transitions, 607 flow [2023-11-12 02:16:19,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:16:19,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:16:19,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 818 transitions. [2023-11-12 02:16:19,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.485459940652819 [2023-11-12 02:16:19,982 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 818 transitions. [2023-11-12 02:16:19,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 818 transitions. [2023-11-12 02:16:19,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:19,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 818 transitions. [2023-11-12 02:16:19,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 163.6) internal successors, (818), 5 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:19,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 337.0) internal successors, (2022), 6 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:19,991 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 337.0) internal successors, (2022), 6 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:19,991 INFO L175 Difference]: Start difference. First operand has 60 places, 64 transitions, 396 flow. Second operand 5 states and 818 transitions. [2023-11-12 02:16:19,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 77 transitions, 607 flow [2023-11-12 02:16:19,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 77 transitions, 580 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-11-12 02:16:19,997 INFO L231 Difference]: Finished difference. Result has 65 places, 70 transitions, 461 flow [2023-11-12 02:16:19,997 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=461, PETRI_PLACES=65, PETRI_TRANSITIONS=70} [2023-11-12 02:16:19,998 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 27 predicate places. [2023-11-12 02:16:19,998 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 70 transitions, 461 flow [2023-11-12 02:16:19,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 155.14285714285714) internal successors, (1086), 7 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:19,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:19,999 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:20,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:16:20,000 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-12 02:16:20,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:20,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1261477747, now seen corresponding path program 1 times [2023-11-12 02:16:20,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:20,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273525296] [2023-11-12 02:16:20,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:20,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:20,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:20,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:20,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273525296] [2023-11-12 02:16:20,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273525296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:20,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:20,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:16:20,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330856655] [2023-11-12 02:16:20,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:20,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:16:20,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:20,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:16:20,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:16:20,823 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 337 [2023-11-12 02:16:20,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 70 transitions, 461 flow. Second operand has 7 states, 7 states have (on average 155.14285714285714) internal successors, (1086), 7 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:20,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:20,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 337 [2023-11-12 02:16:20,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:21,445 INFO L124 PetriNetUnfolderBase]: 1176/1910 cut-off events. [2023-11-12 02:16:21,445 INFO L125 PetriNetUnfolderBase]: For 1964/1964 co-relation queries the response was YES. [2023-11-12 02:16:21,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5674 conditions, 1910 events. 1176/1910 cut-off events. For 1964/1964 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9052 event pairs, 811 based on Foata normal form. 2/1678 useless extension candidates. Maximal degree in co-relation 4760. Up to 1862 conditions per place. [2023-11-12 02:16:21,461 INFO L140 encePairwiseOnDemand]: 329/337 looper letters, 62 selfloop transitions, 21 changer transitions 0/84 dead transitions. [2023-11-12 02:16:21,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 84 transitions, 717 flow [2023-11-12 02:16:21,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:16:21,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:16:21,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 818 transitions. [2023-11-12 02:16:21,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.485459940652819 [2023-11-12 02:16:21,466 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 818 transitions. [2023-11-12 02:16:21,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 818 transitions. [2023-11-12 02:16:21,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:21,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 818 transitions. [2023-11-12 02:16:21,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 163.6) internal successors, (818), 5 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:21,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 337.0) internal successors, (2022), 6 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:21,475 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 337.0) internal successors, (2022), 6 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:21,475 INFO L175 Difference]: Start difference. First operand has 65 places, 70 transitions, 461 flow. Second operand 5 states and 818 transitions. [2023-11-12 02:16:21,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 84 transitions, 717 flow [2023-11-12 02:16:21,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 84 transitions, 713 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-12 02:16:21,482 INFO L231 Difference]: Finished difference. Result has 70 places, 78 transitions, 571 flow [2023-11-12 02:16:21,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=571, PETRI_PLACES=70, PETRI_TRANSITIONS=78} [2023-11-12 02:16:21,483 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 32 predicate places. [2023-11-12 02:16:21,484 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 78 transitions, 571 flow [2023-11-12 02:16:21,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 155.14285714285714) internal successors, (1086), 7 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:21,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:21,485 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:21,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:16:21,485 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-12 02:16:21,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:21,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1305998894, now seen corresponding path program 1 times [2023-11-12 02:16:21,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:21,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601509999] [2023-11-12 02:16:21,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:21,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:21,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:21,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:21,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601509999] [2023-11-12 02:16:21,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601509999] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:21,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:21,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:16:21,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068227180] [2023-11-12 02:16:21,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:21,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:16:21,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:21,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:16:21,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:16:22,022 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 337 [2023-11-12 02:16:22,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 78 transitions, 571 flow. Second operand has 6 states, 6 states have (on average 156.5) internal successors, (939), 6 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:22,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:22,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 337 [2023-11-12 02:16:22,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:22,751 INFO L124 PetriNetUnfolderBase]: 1584/2598 cut-off events. [2023-11-12 02:16:22,751 INFO L125 PetriNetUnfolderBase]: For 3496/3496 co-relation queries the response was YES. [2023-11-12 02:16:22,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8154 conditions, 2598 events. 1584/2598 cut-off events. For 3496/3496 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 13691 event pairs, 233 based on Foata normal form. 40/2316 useless extension candidates. Maximal degree in co-relation 6588. Up to 1283 conditions per place. [2023-11-12 02:16:22,805 INFO L140 encePairwiseOnDemand]: 324/337 looper letters, 114 selfloop transitions, 25 changer transitions 0/140 dead transitions. [2023-11-12 02:16:22,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 140 transitions, 1153 flow [2023-11-12 02:16:22,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:16:22,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:16:22,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1176 transitions. [2023-11-12 02:16:22,824 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49851632047477745 [2023-11-12 02:16:22,825 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1176 transitions. [2023-11-12 02:16:22,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1176 transitions. [2023-11-12 02:16:22,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:22,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1176 transitions. [2023-11-12 02:16:22,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 168.0) internal successors, (1176), 7 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:22,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 337.0) internal successors, (2696), 8 states have internal predecessors, (2696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:22,850 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 337.0) internal successors, (2696), 8 states have internal predecessors, (2696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:22,850 INFO L175 Difference]: Start difference. First operand has 70 places, 78 transitions, 571 flow. Second operand 7 states and 1176 transitions. [2023-11-12 02:16:22,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 140 transitions, 1153 flow [2023-11-12 02:16:22,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 140 transitions, 1135 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-12 02:16:22,872 INFO L231 Difference]: Finished difference. Result has 79 places, 93 transitions, 753 flow [2023-11-12 02:16:22,887 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=753, PETRI_PLACES=79, PETRI_TRANSITIONS=93} [2023-11-12 02:16:22,888 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 41 predicate places. [2023-11-12 02:16:22,888 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 93 transitions, 753 flow [2023-11-12 02:16:22,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.5) internal successors, (939), 6 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:22,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:22,889 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:22,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:16:22,890 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-12 02:16:22,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:22,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1306034482, now seen corresponding path program 1 times [2023-11-12 02:16:22,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:22,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965340140] [2023-11-12 02:16:22,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:22,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:23,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:23,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:23,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965340140] [2023-11-12 02:16:23,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965340140] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:23,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:23,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:16:23,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578783661] [2023-11-12 02:16:23,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:23,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:16:23,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:23,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:16:23,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:16:24,470 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-12 02:16:24,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 93 transitions, 753 flow. Second operand has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:24,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:24,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-12 02:16:24,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:25,572 INFO L124 PetriNetUnfolderBase]: 1616/2646 cut-off events. [2023-11-12 02:16:25,572 INFO L125 PetriNetUnfolderBase]: For 6258/6258 co-relation queries the response was YES. [2023-11-12 02:16:25,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10194 conditions, 2646 events. 1616/2646 cut-off events. For 6258/6258 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 13928 event pairs, 746 based on Foata normal form. 4/2326 useless extension candidates. Maximal degree in co-relation 7949. Up to 2575 conditions per place. [2023-11-12 02:16:25,604 INFO L140 encePairwiseOnDemand]: 325/337 looper letters, 76 selfloop transitions, 47 changer transitions 0/124 dead transitions. [2023-11-12 02:16:25,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 124 transitions, 1228 flow [2023-11-12 02:16:25,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:16:25,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-12 02:16:25,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1600 transitions. [2023-11-12 02:16:25,614 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47477744807121663 [2023-11-12 02:16:25,614 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1600 transitions. [2023-11-12 02:16:25,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1600 transitions. [2023-11-12 02:16:25,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:25,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1600 transitions. [2023-11-12 02:16:25,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 160.0) internal successors, (1600), 10 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:25,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:25,632 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:25,632 INFO L175 Difference]: Start difference. First operand has 79 places, 93 transitions, 753 flow. Second operand 10 states and 1600 transitions. [2023-11-12 02:16:25,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 124 transitions, 1228 flow [2023-11-12 02:16:25,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 124 transitions, 1200 flow, removed 9 selfloop flow, removed 2 redundant places. [2023-11-12 02:16:25,666 INFO L231 Difference]: Finished difference. Result has 91 places, 115 transitions, 1082 flow [2023-11-12 02:16:25,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=725, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1082, PETRI_PLACES=91, PETRI_TRANSITIONS=115} [2023-11-12 02:16:25,670 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 53 predicate places. [2023-11-12 02:16:25,670 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 115 transitions, 1082 flow [2023-11-12 02:16:25,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:25,671 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:25,672 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:25,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:16:25,672 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-12 02:16:25,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:25,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1306034485, now seen corresponding path program 1 times [2023-11-12 02:16:25,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:25,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164007377] [2023-11-12 02:16:25,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:25,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:26,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:26,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:26,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164007377] [2023-11-12 02:16:26,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164007377] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:26,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:26,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:16:26,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764684164] [2023-11-12 02:16:26,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:26,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:16:26,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:26,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:16:26,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:16:26,932 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-12 02:16:26,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 115 transitions, 1082 flow. Second operand has 8 states, 8 states have (on average 154.125) internal successors, (1233), 8 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:26,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:26,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-12 02:16:26,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:27,879 INFO L124 PetriNetUnfolderBase]: 1640/2680 cut-off events. [2023-11-12 02:16:27,880 INFO L125 PetriNetUnfolderBase]: For 7588/7588 co-relation queries the response was YES. [2023-11-12 02:16:27,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10712 conditions, 2680 events. 1640/2680 cut-off events. For 7588/7588 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 14282 event pairs, 776 based on Foata normal form. 2/2358 useless extension candidates. Maximal degree in co-relation 10570. Up to 2605 conditions per place. [2023-11-12 02:16:27,908 INFO L140 encePairwiseOnDemand]: 325/337 looper letters, 74 selfloop transitions, 64 changer transitions 0/139 dead transitions. [2023-11-12 02:16:27,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 139 transitions, 1593 flow [2023-11-12 02:16:27,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:16:27,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-12 02:16:27,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1596 transitions. [2023-11-12 02:16:27,915 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47359050445103856 [2023-11-12 02:16:27,916 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1596 transitions. [2023-11-12 02:16:27,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1596 transitions. [2023-11-12 02:16:27,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:27,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1596 transitions. [2023-11-12 02:16:27,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 159.6) internal successors, (1596), 10 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:27,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:27,932 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:27,932 INFO L175 Difference]: Start difference. First operand has 91 places, 115 transitions, 1082 flow. Second operand 10 states and 1596 transitions. [2023-11-12 02:16:27,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 139 transitions, 1593 flow [2023-11-12 02:16:27,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 139 transitions, 1491 flow, removed 15 selfloop flow, removed 4 redundant places. [2023-11-12 02:16:27,956 INFO L231 Difference]: Finished difference. Result has 98 places, 132 transitions, 1359 flow [2023-11-12 02:16:27,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=1009, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1359, PETRI_PLACES=98, PETRI_TRANSITIONS=132} [2023-11-12 02:16:27,957 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 60 predicate places. [2023-11-12 02:16:27,957 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 132 transitions, 1359 flow [2023-11-12 02:16:27,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 154.125) internal successors, (1233), 8 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:27,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:27,959 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:27,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:16:27,959 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-12 02:16:27,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:27,960 INFO L85 PathProgramCache]: Analyzing trace with hash -141682011, now seen corresponding path program 2 times [2023-11-12 02:16:27,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:27,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907109655] [2023-11-12 02:16:27,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:27,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:28,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:28,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:28,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907109655] [2023-11-12 02:16:28,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907109655] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:28,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:28,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:16:28,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012733997] [2023-11-12 02:16:28,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:28,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:16:28,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:28,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:16:28,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:16:29,077 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-12 02:16:29,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 132 transitions, 1359 flow. Second operand has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:29,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:29,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-12 02:16:29,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:29,952 INFO L124 PetriNetUnfolderBase]: 1632/2670 cut-off events. [2023-11-12 02:16:29,952 INFO L125 PetriNetUnfolderBase]: For 7966/7966 co-relation queries the response was YES. [2023-11-12 02:16:29,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10949 conditions, 2670 events. 1632/2670 cut-off events. For 7966/7966 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 14067 event pairs, 797 based on Foata normal form. 2/2350 useless extension candidates. Maximal degree in co-relation 8829. Up to 2589 conditions per place. [2023-11-12 02:16:29,977 INFO L140 encePairwiseOnDemand]: 326/337 looper letters, 82 selfloop transitions, 56 changer transitions 0/139 dead transitions. [2023-11-12 02:16:29,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 139 transitions, 1661 flow [2023-11-12 02:16:29,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:16:29,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-12 02:16:29,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1286 transitions. [2023-11-12 02:16:29,990 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47700296735905046 [2023-11-12 02:16:29,990 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1286 transitions. [2023-11-12 02:16:29,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1286 transitions. [2023-11-12 02:16:29,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:29,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1286 transitions. [2023-11-12 02:16:29,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 160.75) internal successors, (1286), 8 states have internal predecessors, (1286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:30,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 337.0) internal successors, (3033), 9 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:30,019 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 337.0) internal successors, (3033), 9 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:30,027 INFO L175 Difference]: Start difference. First operand has 98 places, 132 transitions, 1359 flow. Second operand 8 states and 1286 transitions. [2023-11-12 02:16:30,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 139 transitions, 1661 flow [2023-11-12 02:16:30,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 139 transitions, 1579 flow, removed 9 selfloop flow, removed 4 redundant places. [2023-11-12 02:16:30,069 INFO L231 Difference]: Finished difference. Result has 102 places, 132 transitions, 1408 flow [2023-11-12 02:16:30,070 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=1278, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1408, PETRI_PLACES=102, PETRI_TRANSITIONS=132} [2023-11-12 02:16:30,071 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 64 predicate places. [2023-11-12 02:16:30,071 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 132 transitions, 1408 flow [2023-11-12 02:16:30,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:30,073 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:30,073 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:30,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:16:30,073 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-12 02:16:30,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:30,074 INFO L85 PathProgramCache]: Analyzing trace with hash -485268882, now seen corresponding path program 2 times [2023-11-12 02:16:30,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:30,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951007159] [2023-11-12 02:16:30,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:30,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:30,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:30,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:30,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951007159] [2023-11-12 02:16:30,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951007159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:30,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:30,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:16:30,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002002419] [2023-11-12 02:16:30,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:30,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:16:30,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:30,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:16:30,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:16:30,704 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 337 [2023-11-12 02:16:30,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 132 transitions, 1408 flow. Second operand has 6 states, 6 states have (on average 155.5) internal successors, (933), 6 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:30,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:30,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 337 [2023-11-12 02:16:30,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:31,718 INFO L124 PetriNetUnfolderBase]: 2139/3465 cut-off events. [2023-11-12 02:16:31,718 INFO L125 PetriNetUnfolderBase]: For 10358/10358 co-relation queries the response was YES. [2023-11-12 02:16:31,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13953 conditions, 3465 events. 2139/3465 cut-off events. For 10358/10358 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 19259 event pairs, 182 based on Foata normal form. 40/3112 useless extension candidates. Maximal degree in co-relation 11484. Up to 1505 conditions per place. [2023-11-12 02:16:31,747 INFO L140 encePairwiseOnDemand]: 323/337 looper letters, 170 selfloop transitions, 64 changer transitions 0/235 dead transitions. [2023-11-12 02:16:31,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 235 transitions, 2549 flow [2023-11-12 02:16:31,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:16:31,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-12 02:16:31,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1665 transitions. [2023-11-12 02:16:31,754 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4940652818991098 [2023-11-12 02:16:31,754 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1665 transitions. [2023-11-12 02:16:31,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1665 transitions. [2023-11-12 02:16:31,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:31,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1665 transitions. [2023-11-12 02:16:31,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 166.5) internal successors, (1665), 10 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:31,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:31,769 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:31,769 INFO L175 Difference]: Start difference. First operand has 102 places, 132 transitions, 1408 flow. Second operand 10 states and 1665 transitions. [2023-11-12 02:16:31,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 235 transitions, 2549 flow [2023-11-12 02:16:31,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 235 transitions, 2460 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-11-12 02:16:31,816 INFO L231 Difference]: Finished difference. Result has 110 places, 181 transitions, 1940 flow [2023-11-12 02:16:31,816 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=1319, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1940, PETRI_PLACES=110, PETRI_TRANSITIONS=181} [2023-11-12 02:16:31,817 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 72 predicate places. [2023-11-12 02:16:31,817 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 181 transitions, 1940 flow [2023-11-12 02:16:31,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.5) internal successors, (933), 6 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:31,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:31,818 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:31,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:16:31,818 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-12 02:16:31,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:31,819 INFO L85 PathProgramCache]: Analyzing trace with hash -451068814, now seen corresponding path program 2 times [2023-11-12 02:16:31,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:31,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121435840] [2023-11-12 02:16:31,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:31,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:32,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:32,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:32,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121435840] [2023-11-12 02:16:32,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121435840] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:32,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:32,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:16:32,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465228835] [2023-11-12 02:16:32,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:32,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:16:32,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:32,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:16:32,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:16:32,952 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-12 02:16:32,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 181 transitions, 1940 flow. Second operand has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:32,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:32,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-12 02:16:32,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:34,124 INFO L124 PetriNetUnfolderBase]: 2159/3495 cut-off events. [2023-11-12 02:16:34,125 INFO L125 PetriNetUnfolderBase]: For 15436/15436 co-relation queries the response was YES. [2023-11-12 02:16:34,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16314 conditions, 3495 events. 2159/3495 cut-off events. For 15436/15436 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 19602 event pairs, 982 based on Foata normal form. 4/3104 useless extension candidates. Maximal degree in co-relation 13525. Up to 3429 conditions per place. [2023-11-12 02:16:34,160 INFO L140 encePairwiseOnDemand]: 324/337 looper letters, 137 selfloop transitions, 62 changer transitions 0/200 dead transitions. [2023-11-12 02:16:34,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 200 transitions, 2514 flow [2023-11-12 02:16:34,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:16:34,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-12 02:16:34,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1909 transitions. [2023-11-12 02:16:34,170 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47205736894164196 [2023-11-12 02:16:34,170 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1909 transitions. [2023-11-12 02:16:34,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1909 transitions. [2023-11-12 02:16:34,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:34,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1909 transitions. [2023-11-12 02:16:34,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 159.08333333333334) internal successors, (1909), 12 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:34,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 337.0) internal successors, (4381), 13 states have internal predecessors, (4381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:34,189 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 337.0) internal successors, (4381), 13 states have internal predecessors, (4381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:34,189 INFO L175 Difference]: Start difference. First operand has 110 places, 181 transitions, 1940 flow. Second operand 12 states and 1909 transitions. [2023-11-12 02:16:34,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 200 transitions, 2514 flow [2023-11-12 02:16:34,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 200 transitions, 2372 flow, removed 70 selfloop flow, removed 1 redundant places. [2023-11-12 02:16:34,315 INFO L231 Difference]: Finished difference. Result has 122 places, 190 transitions, 2081 flow [2023-11-12 02:16:34,316 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=1798, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2081, PETRI_PLACES=122, PETRI_TRANSITIONS=190} [2023-11-12 02:16:34,316 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 84 predicate places. [2023-11-12 02:16:34,317 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 190 transitions, 2081 flow [2023-11-12 02:16:34,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:34,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:34,318 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:34,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:16:34,318 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-12 02:16:34,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:34,319 INFO L85 PathProgramCache]: Analyzing trace with hash -451108771, now seen corresponding path program 1 times [2023-11-12 02:16:34,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:34,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079831754] [2023-11-12 02:16:34,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:34,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:34,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:34,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:34,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079831754] [2023-11-12 02:16:34,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079831754] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:34,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:34,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:16:34,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868330396] [2023-11-12 02:16:34,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:34,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:16:34,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:34,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:16:34,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:16:34,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 337 [2023-11-12 02:16:34,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 190 transitions, 2081 flow. Second operand has 6 states, 6 states have (on average 156.5) internal successors, (939), 6 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:34,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:34,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 337 [2023-11-12 02:16:34,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:35,869 INFO L124 PetriNetUnfolderBase]: 2263/3708 cut-off events. [2023-11-12 02:16:35,869 INFO L125 PetriNetUnfolderBase]: For 16400/16400 co-relation queries the response was YES. [2023-11-12 02:16:35,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16829 conditions, 3708 events. 2263/3708 cut-off events. For 16400/16400 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 21216 event pairs, 324 based on Foata normal form. 96/3437 useless extension candidates. Maximal degree in co-relation 16149. Up to 1869 conditions per place. [2023-11-12 02:16:35,896 INFO L140 encePairwiseOnDemand]: 324/337 looper letters, 202 selfloop transitions, 84 changer transitions 0/287 dead transitions. [2023-11-12 02:16:35,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 287 transitions, 3445 flow [2023-11-12 02:16:35,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:16:35,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:16:35,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1177 transitions. [2023-11-12 02:16:35,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49894022891055534 [2023-11-12 02:16:35,901 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1177 transitions. [2023-11-12 02:16:35,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1177 transitions. [2023-11-12 02:16:35,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:35,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1177 transitions. [2023-11-12 02:16:35,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 168.14285714285714) internal successors, (1177), 7 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:35,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 337.0) internal successors, (2696), 8 states have internal predecessors, (2696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:35,911 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 337.0) internal successors, (2696), 8 states have internal predecessors, (2696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:35,911 INFO L175 Difference]: Start difference. First operand has 122 places, 190 transitions, 2081 flow. Second operand 7 states and 1177 transitions. [2023-11-12 02:16:35,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 287 transitions, 3445 flow [2023-11-12 02:16:36,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 287 transitions, 3249 flow, removed 37 selfloop flow, removed 8 redundant places. [2023-11-12 02:16:36,030 INFO L231 Difference]: Finished difference. Result has 124 places, 235 transitions, 2643 flow [2023-11-12 02:16:36,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=1900, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2643, PETRI_PLACES=124, PETRI_TRANSITIONS=235} [2023-11-12 02:16:36,032 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 86 predicate places. [2023-11-12 02:16:36,032 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 235 transitions, 2643 flow [2023-11-12 02:16:36,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.5) internal successors, (939), 6 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:36,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:36,033 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:36,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-12 02:16:36,033 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-12 02:16:36,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:36,033 INFO L85 PathProgramCache]: Analyzing trace with hash -451068812, now seen corresponding path program 1 times [2023-11-12 02:16:36,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:36,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083655229] [2023-11-12 02:16:36,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:36,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:36,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:36,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:36,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083655229] [2023-11-12 02:16:36,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083655229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:36,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:36,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:16:36,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302591616] [2023-11-12 02:16:36,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:36,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:16:36,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:36,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:16:36,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:16:36,885 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-12 02:16:36,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 235 transitions, 2643 flow. Second operand has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:36,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:36,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-12 02:16:36,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:37,884 INFO L124 PetriNetUnfolderBase]: 2281/3735 cut-off events. [2023-11-12 02:16:37,884 INFO L125 PetriNetUnfolderBase]: For 21417/21417 co-relation queries the response was YES. [2023-11-12 02:16:37,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19255 conditions, 3735 events. 2281/3735 cut-off events. For 21417/21417 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 21545 event pairs, 1036 based on Foata normal form. 6/3374 useless extension candidates. Maximal degree in co-relation 19128. Up to 3679 conditions per place. [2023-11-12 02:16:37,970 INFO L140 encePairwiseOnDemand]: 325/337 looper letters, 199 selfloop transitions, 52 changer transitions 0/252 dead transitions. [2023-11-12 02:16:37,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 252 transitions, 3351 flow [2023-11-12 02:16:37,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:16:37,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-12 02:16:37,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1438 transitions. [2023-11-12 02:16:37,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4741180349488955 [2023-11-12 02:16:37,977 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1438 transitions. [2023-11-12 02:16:37,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1438 transitions. [2023-11-12 02:16:37,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:37,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1438 transitions. [2023-11-12 02:16:37,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 159.77777777777777) internal successors, (1438), 9 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:37,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 337.0) internal successors, (3370), 10 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:37,988 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 337.0) internal successors, (3370), 10 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:37,988 INFO L175 Difference]: Start difference. First operand has 124 places, 235 transitions, 2643 flow. Second operand 9 states and 1438 transitions. [2023-11-12 02:16:37,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 252 transitions, 3351 flow [2023-11-12 02:16:38,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 252 transitions, 3288 flow, removed 13 selfloop flow, removed 2 redundant places. [2023-11-12 02:16:38,172 INFO L231 Difference]: Finished difference. Result has 132 places, 246 transitions, 2874 flow [2023-11-12 02:16:38,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=2580, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2874, PETRI_PLACES=132, PETRI_TRANSITIONS=246} [2023-11-12 02:16:38,173 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 94 predicate places. [2023-11-12 02:16:38,173 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 246 transitions, 2874 flow [2023-11-12 02:16:38,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:38,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:38,174 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:38,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-12 02:16:38,175 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-12 02:16:38,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:38,175 INFO L85 PathProgramCache]: Analyzing trace with hash -448833095, now seen corresponding path program 1 times [2023-11-12 02:16:38,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:38,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324011733] [2023-11-12 02:16:38,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:38,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:39,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:39,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:39,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324011733] [2023-11-12 02:16:39,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324011733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:39,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:39,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:16:39,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041638389] [2023-11-12 02:16:39,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:39,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:16:39,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:39,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:16:39,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:16:39,672 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-12 02:16:39,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 246 transitions, 2874 flow. Second operand has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:39,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:39,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-12 02:16:39,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:41,235 INFO L124 PetriNetUnfolderBase]: 2273/3723 cut-off events. [2023-11-12 02:16:41,235 INFO L125 PetriNetUnfolderBase]: For 22129/22129 co-relation queries the response was YES. [2023-11-12 02:16:41,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19067 conditions, 3723 events. 2273/3723 cut-off events. For 22129/22129 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 21478 event pairs, 944 based on Foata normal form. 2/3360 useless extension candidates. Maximal degree in co-relation 18485. Up to 3651 conditions per place. [2023-11-12 02:16:41,271 INFO L140 encePairwiseOnDemand]: 324/337 looper letters, 182 selfloop transitions, 73 changer transitions 0/256 dead transitions. [2023-11-12 02:16:41,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 256 transitions, 3459 flow [2023-11-12 02:16:41,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 02:16:41,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-12 02:16:41,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2220 transitions. [2023-11-12 02:16:41,277 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4705383637134379 [2023-11-12 02:16:41,278 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2220 transitions. [2023-11-12 02:16:41,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2220 transitions. [2023-11-12 02:16:41,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:41,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2220 transitions. [2023-11-12 02:16:41,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 158.57142857142858) internal successors, (2220), 14 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:41,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 337.0) internal successors, (5055), 15 states have internal predecessors, (5055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:41,293 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 337.0) internal successors, (5055), 15 states have internal predecessors, (5055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:41,293 INFO L175 Difference]: Start difference. First operand has 132 places, 246 transitions, 2874 flow. Second operand 14 states and 2220 transitions. [2023-11-12 02:16:41,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 256 transitions, 3459 flow [2023-11-12 02:16:41,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 256 transitions, 3362 flow, removed 19 selfloop flow, removed 4 redundant places. [2023-11-12 02:16:41,488 INFO L231 Difference]: Finished difference. Result has 143 places, 247 transitions, 2976 flow [2023-11-12 02:16:41,489 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=2777, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2976, PETRI_PLACES=143, PETRI_TRANSITIONS=247} [2023-11-12 02:16:41,490 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 105 predicate places. [2023-11-12 02:16:41,491 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 247 transitions, 2976 flow [2023-11-12 02:16:41,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:41,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:41,491 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:41,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-12 02:16:41,492 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-12 02:16:41,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:41,492 INFO L85 PathProgramCache]: Analyzing trace with hash -485273251, now seen corresponding path program 2 times [2023-11-12 02:16:41,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:41,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149567097] [2023-11-12 02:16:41,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:41,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:41,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:41,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:41,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149567097] [2023-11-12 02:16:41,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149567097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:41,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:41,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:16:41,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645385172] [2023-11-12 02:16:41,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:41,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:16:41,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:41,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:16:41,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:16:41,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 337 [2023-11-12 02:16:41,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 247 transitions, 2976 flow. Second operand has 6 states, 6 states have (on average 155.5) internal successors, (933), 6 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:41,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:41,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 337 [2023-11-12 02:16:41,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand