./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c815bd3-2887-46dc-aac1-bf4dd3f62428/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c815bd3-2887-46dc-aac1-bf4dd3f62428/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c815bd3-2887-46dc-aac1-bf4dd3f62428/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c815bd3-2887-46dc-aac1-bf4dd3f62428/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c815bd3-2887-46dc-aac1-bf4dd3f62428/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c815bd3-2887-46dc-aac1-bf4dd3f62428/bin/utaipan-verify-t7M7D8N6sZ --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:21:21,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:21:21,257 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c815bd3-2887-46dc-aac1-bf4dd3f62428/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-19 05:21:21,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:21:21,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:21:21,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:21:21,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:21:21,301 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:21:21,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:21:21,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:21:21,303 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:21:21,304 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:21:21,305 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:21:21,306 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:21:21,306 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:21:21,307 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:21:21,308 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:21:21,309 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:21:21,309 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:21:21,310 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:21:21,311 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:21:21,312 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:21:21,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:21:21,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:21:21,314 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:21:21,314 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:21:21,315 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:21:21,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:21:21,316 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:21:21,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:21:21,317 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:21:21,318 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 05:21:21,318 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:21:21,319 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:21:21,319 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:21:21,320 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:21:21,320 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:21:21,320 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:21:21,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:21:21,321 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:21:21,321 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:21:21,322 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:21:21,322 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:21:21,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:21:21,323 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:21:21,323 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:21:21,324 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:21:21,324 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_3c815bd3-2887-46dc-aac1-bf4dd3f62428/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c815bd3-2887-46dc-aac1-bf4dd3f62428/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 [2023-11-19 05:21:21,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:21:21,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:21:21,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:21:21,747 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:21:21,748 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:21:21,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c815bd3-2887-46dc-aac1-bf4dd3f62428/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2023-11-19 05:21:25,612 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:21:26,096 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:21:26,097 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c815bd3-2887-46dc-aac1-bf4dd3f62428/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2023-11-19 05:21:26,139 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c815bd3-2887-46dc-aac1-bf4dd3f62428/bin/utaipan-verify-t7M7D8N6sZ/data/298572d06/625c5818da6a4228a3544697fc0e56f3/FLAGeecded9d7 [2023-11-19 05:21:26,161 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c815bd3-2887-46dc-aac1-bf4dd3f62428/bin/utaipan-verify-t7M7D8N6sZ/data/298572d06/625c5818da6a4228a3544697fc0e56f3 [2023-11-19 05:21:26,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:21:26,172 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:21:26,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:21:26,177 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:21:26,184 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:21:26,185 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:21:26" (1/1) ... [2023-11-19 05:21:26,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d52ed55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:26, skipping insertion in model container [2023-11-19 05:21:26,187 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:21:26" (1/1) ... [2023-11-19 05:21:26,311 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:21:26,502 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 05:21:27,250 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:21:27,264 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:21:27,296 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 05:21:27,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:21:27,610 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:21:27,610 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:21:27,610 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:21:27,620 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:21:27,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27 WrapperNode [2023-11-19 05:21:27,621 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:21:27,623 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:21:27,623 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:21:27,623 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:21:27,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:27,700 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:27,769 INFO L138 Inliner]: procedures = 469, calls = 64, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 162 [2023-11-19 05:21:27,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:21:27,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:21:27,770 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:21:27,771 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:21:27,783 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:27,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:27,807 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:27,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:27,851 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:27,854 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:27,860 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:27,864 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:27,873 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:21:27,874 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:21:27,874 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:21:27,874 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:21:27,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:27,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:21:27,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c815bd3-2887-46dc-aac1-bf4dd3f62428/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:21:27,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c815bd3-2887-46dc-aac1-bf4dd3f62428/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:21:27,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c815bd3-2887-46dc-aac1-bf4dd3f62428/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:21:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 05:21:27,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:21:27,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 05:21:27,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:21:27,971 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 05:21:27,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:21:27,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:21:27,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:21:27,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:21:27,973 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-19 05:21:27,973 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-19 05:21:27,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:21:27,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:21:27,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:21:27,976 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 05:21:28,336 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:21:28,341 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:21:28,680 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:21:28,837 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:21:28,838 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:21:28,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:21:28 BoogieIcfgContainer [2023-11-19 05:21:28,844 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:21:28,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:21:28,847 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:21:28,851 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:21:28,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:21:26" (1/3) ... [2023-11-19 05:21:28,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14986385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:21:28, skipping insertion in model container [2023-11-19 05:21:28,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (2/3) ... [2023-11-19 05:21:28,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14986385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:21:28, skipping insertion in model container [2023-11-19 05:21:28,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:21:28" (3/3) ... [2023-11-19 05:21:28,855 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2023-11-19 05:21:28,867 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 05:21:28,914 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:21:28,914 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 05:21:28,915 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 05:21:29,019 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 05:21:29,083 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 05:21:29,119 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 191 places, 195 transitions, 404 flow [2023-11-19 05:21:29,123 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 191 places, 195 transitions, 404 flow [2023-11-19 05:21:29,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 195 transitions, 404 flow [2023-11-19 05:21:29,290 INFO L124 PetriNetUnfolderBase]: 14/249 cut-off events. [2023-11-19 05:21:29,291 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 05:21:29,298 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 495 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 124. Up to 4 conditions per place. [2023-11-19 05:21:29,304 INFO L119 LiptonReduction]: Number of co-enabled transitions 5580 [2023-11-19 05:21:48,803 INFO L134 LiptonReduction]: Checked pairs total: 12733 [2023-11-19 05:21:48,803 INFO L136 LiptonReduction]: Total number of compositions: 214 [2023-11-19 05:21:48,814 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 37 transitions, 88 flow [2023-11-19 05:21:48,942 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 636 states, 616 states have (on average 2.767857142857143) internal successors, (1705), 635 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:48,975 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:21:48,986 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=FINITE_AUTOMATA, 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;@7c8b5bee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:21:48,986 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-19 05:21:48,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 636 states, 616 states have (on average 2.767857142857143) internal successors, (1705), 635 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:49,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 05:21:49,002 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:49,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 05:21:49,004 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 05:21:49,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:49,016 INFO L85 PathProgramCache]: Analyzing trace with hash 761773308, now seen corresponding path program 1 times [2023-11-19 05:21:49,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:21:49,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712937706] [2023-11-19 05:21:49,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:49,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:21:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:50,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:21:50,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:21:50,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712937706] [2023-11-19 05:21:50,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712937706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:21:50,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:21:50,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:21:50,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014127179] [2023-11-19 05:21:50,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:21:50,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:21:50,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:21:50,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:21:50,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:21:50,671 INFO L87 Difference]: Start difference. First operand has 636 states, 616 states have (on average 2.767857142857143) internal successors, (1705), 635 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:50,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:21:50,991 INFO L93 Difference]: Finished difference Result 634 states and 1641 transitions. [2023-11-19 05:21:50,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:21:50,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-19 05:21:50,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:21:51,026 INFO L225 Difference]: With dead ends: 634 [2023-11-19 05:21:51,027 INFO L226 Difference]: Without dead ends: 581 [2023-11-19 05:21:51,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:21:51,035 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:21:51,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:21:51,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2023-11-19 05:21:51,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 581. [2023-11-19 05:21:51,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 565 states have (on average 2.6371681415929205) internal successors, (1490), 580 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:51,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 1490 transitions. [2023-11-19 05:21:51,163 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 1490 transitions. Word has length 5 [2023-11-19 05:21:51,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:21:51,163 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 1490 transitions. [2023-11-19 05:21:51,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:51,164 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 1490 transitions. [2023-11-19 05:21:51,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 05:21:51,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:51,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 05:21:51,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:21:51,171 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 05:21:51,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:51,172 INFO L85 PathProgramCache]: Analyzing trace with hash 2139791674, now seen corresponding path program 1 times [2023-11-19 05:21:51,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:21:51,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914131790] [2023-11-19 05:21:51,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:51,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:21:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:51,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:21:51,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:21:51,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914131790] [2023-11-19 05:21:51,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914131790] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:21:51,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:21:51,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:21:51,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554705869] [2023-11-19 05:21:51,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:21:51,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:21:51,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:21:51,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:21:51,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:21:51,974 INFO L87 Difference]: Start difference. First operand 581 states and 1490 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:52,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:21:52,289 INFO L93 Difference]: Finished difference Result 590 states and 1514 transitions. [2023-11-19 05:21:52,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:21:52,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-19 05:21:52,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:21:52,296 INFO L225 Difference]: With dead ends: 590 [2023-11-19 05:21:52,297 INFO L226 Difference]: Without dead ends: 590 [2023-11-19 05:21:52,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:21:52,299 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:21:52,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:21:52,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2023-11-19 05:21:52,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 587. [2023-11-19 05:21:52,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 571 states have (on average 2.637478108581436) internal successors, (1506), 586 states have internal predecessors, (1506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:52,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 1506 transitions. [2023-11-19 05:21:52,330 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 1506 transitions. Word has length 6 [2023-11-19 05:21:52,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:21:52,331 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 1506 transitions. [2023-11-19 05:21:52,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:52,331 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 1506 transitions. [2023-11-19 05:21:52,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 05:21:52,332 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:52,333 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 05:21:52,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:21:52,334 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 05:21:52,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:52,334 INFO L85 PathProgramCache]: Analyzing trace with hash 2140281784, now seen corresponding path program 2 times [2023-11-19 05:21:52,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:21:52,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330850597] [2023-11-19 05:21:52,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:52,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:21:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:53,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:21:53,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:21:53,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330850597] [2023-11-19 05:21:53,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330850597] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:21:53,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:21:53,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:21:53,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595558431] [2023-11-19 05:21:53,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:21:53,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:21:53,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:21:53,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:21:53,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:21:53,067 INFO L87 Difference]: Start difference. First operand 587 states and 1506 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:53,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:21:53,333 INFO L93 Difference]: Finished difference Result 581 states and 1490 transitions. [2023-11-19 05:21:53,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:21:53,334 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-19 05:21:53,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:21:53,343 INFO L225 Difference]: With dead ends: 581 [2023-11-19 05:21:53,343 INFO L226 Difference]: Without dead ends: 581 [2023-11-19 05:21:53,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:21:53,348 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:21:53,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:21:53,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2023-11-19 05:21:53,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 575. [2023-11-19 05:21:53,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 559 states have (on average 2.636851520572451) internal successors, (1474), 574 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:53,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 1474 transitions. [2023-11-19 05:21:53,376 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 1474 transitions. Word has length 6 [2023-11-19 05:21:53,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:21:53,376 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 1474 transitions. [2023-11-19 05:21:53,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:53,377 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 1474 transitions. [2023-11-19 05:21:53,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 05:21:53,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:53,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:21:53,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:21:53,379 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 05:21:53,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:53,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1903688756, now seen corresponding path program 1 times [2023-11-19 05:21:53,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:21:53,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611894200] [2023-11-19 05:21:53,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:53,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:21:53,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:54,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:21:54,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:21:54,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611894200] [2023-11-19 05:21:54,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611894200] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:21:54,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:21:54,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:21:54,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922831493] [2023-11-19 05:21:54,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:21:54,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:21:54,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:21:54,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:21:54,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:21:54,047 INFO L87 Difference]: Start difference. First operand 575 states and 1474 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:54,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:21:54,305 INFO L93 Difference]: Finished difference Result 571 states and 1462 transitions. [2023-11-19 05:21:54,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:21:54,306 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 05:21:54,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:21:54,312 INFO L225 Difference]: With dead ends: 571 [2023-11-19 05:21:54,312 INFO L226 Difference]: Without dead ends: 571 [2023-11-19 05:21:54,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:21:54,313 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:21:54,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:21:54,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-11-19 05:21:54,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2023-11-19 05:21:54,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 555 states have (on average 2.6342342342342344) internal successors, (1462), 570 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:54,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 1462 transitions. [2023-11-19 05:21:54,341 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 1462 transitions. Word has length 7 [2023-11-19 05:21:54,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:21:54,341 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 1462 transitions. [2023-11-19 05:21:54,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:54,342 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 1462 transitions. [2023-11-19 05:21:54,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 05:21:54,343 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:54,343 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:21:54,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 05:21:54,344 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 05:21:54,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:54,345 INFO L85 PathProgramCache]: Analyzing trace with hash -949588940, now seen corresponding path program 1 times [2023-11-19 05:21:54,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:21:54,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415554142] [2023-11-19 05:21:54,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:54,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:21:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:55,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:21:55,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:21:55,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415554142] [2023-11-19 05:21:55,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415554142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:21:55,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:21:55,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:21:55,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238846571] [2023-11-19 05:21:55,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:21:55,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 05:21:55,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:21:55,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 05:21:55,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:21:55,048 INFO L87 Difference]: Start difference. First operand 571 states and 1462 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:55,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:21:55,355 INFO L93 Difference]: Finished difference Result 567 states and 1450 transitions. [2023-11-19 05:21:55,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:21:55,356 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 05:21:55,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:21:55,361 INFO L225 Difference]: With dead ends: 567 [2023-11-19 05:21:55,362 INFO L226 Difference]: Without dead ends: 567 [2023-11-19 05:21:55,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:21:55,363 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 15 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:21:55,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:21:55,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2023-11-19 05:21:55,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2023-11-19 05:21:55,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 551 states have (on average 2.6315789473684212) internal successors, (1450), 566 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:55,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 1450 transitions. [2023-11-19 05:21:55,390 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 1450 transitions. Word has length 8 [2023-11-19 05:21:55,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:21:55,390 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 1450 transitions. [2023-11-19 05:21:55,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:55,391 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 1450 transitions. [2023-11-19 05:21:55,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 05:21:55,392 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:55,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:21:55,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 05:21:55,393 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 05:21:55,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:55,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1116715516, now seen corresponding path program 1 times [2023-11-19 05:21:55,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:21:55,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146259224] [2023-11-19 05:21:55,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:55,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:21:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:56,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:21:56,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:21:56,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146259224] [2023-11-19 05:21:56,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146259224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:21:56,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:21:56,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:21:56,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316536695] [2023-11-19 05:21:56,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:21:56,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 05:21:56,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:21:56,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 05:21:56,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:21:56,070 INFO L87 Difference]: Start difference. First operand 567 states and 1450 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:56,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:21:56,385 INFO L93 Difference]: Finished difference Result 573 states and 1468 transitions. [2023-11-19 05:21:56,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:21:56,386 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 05:21:56,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:21:56,392 INFO L225 Difference]: With dead ends: 573 [2023-11-19 05:21:56,392 INFO L226 Difference]: Without dead ends: 573 [2023-11-19 05:21:56,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:21:56,393 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:21:56,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:21:56,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2023-11-19 05:21:56,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 571. [2023-11-19 05:21:56,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 555 states have (on average 2.6342342342342344) internal successors, (1462), 570 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:56,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 1462 transitions. [2023-11-19 05:21:56,419 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 1462 transitions. Word has length 8 [2023-11-19 05:21:56,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:21:56,419 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 1462 transitions. [2023-11-19 05:21:56,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:56,420 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 1462 transitions. [2023-11-19 05:21:56,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 05:21:56,421 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:56,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:21:56,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 05:21:56,422 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 05:21:56,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:56,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1115129866, now seen corresponding path program 2 times [2023-11-19 05:21:56,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:21:56,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712813140] [2023-11-19 05:21:56,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:56,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:21:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:57,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:21:57,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:21:57,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712813140] [2023-11-19 05:21:57,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712813140] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:21:57,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:21:57,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:21:57,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031999027] [2023-11-19 05:21:57,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:21:57,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 05:21:57,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:21:57,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 05:21:57,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:21:57,093 INFO L87 Difference]: Start difference. First operand 571 states and 1462 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:57,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:21:57,432 INFO L93 Difference]: Finished difference Result 567 states and 1450 transitions. [2023-11-19 05:21:57,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:21:57,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 05:21:57,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:21:57,438 INFO L225 Difference]: With dead ends: 567 [2023-11-19 05:21:57,438 INFO L226 Difference]: Without dead ends: 567 [2023-11-19 05:21:57,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:21:57,440 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:21:57,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:21:57,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2023-11-19 05:21:57,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 563. [2023-11-19 05:21:57,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 547 states have (on average 2.6288848263254114) internal successors, (1438), 562 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) [2023-11-19 05:21:57,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 1438 transitions. [2023-11-19 05:21:57,466 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 1438 transitions. Word has length 8 [2023-11-19 05:21:57,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:21:57,467 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 1438 transitions. [2023-11-19 05:21:57,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:57,467 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 1438 transitions. [2023-11-19 05:21:57,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 05:21:57,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:57,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:21:57,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 05:21:57,469 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 05:21:57,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:57,470 INFO L85 PathProgramCache]: Analyzing trace with hash 627509608, now seen corresponding path program 1 times [2023-11-19 05:21:57,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:21:57,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883564104] [2023-11-19 05:21:57,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:57,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:21:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:57,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:21:57,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:21:57,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883564104] [2023-11-19 05:21:57,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883564104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:21:57,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:21:57,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:21:57,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751499614] [2023-11-19 05:21:57,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:21:57,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:21:57,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:21:57,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:21:57,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:21:57,841 INFO L87 Difference]: Start difference. First operand 563 states and 1438 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:58,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:21:58,196 INFO L93 Difference]: Finished difference Result 748 states and 1876 transitions. [2023-11-19 05:21:58,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:21:58,197 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 05:21:58,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:21:58,204 INFO L225 Difference]: With dead ends: 748 [2023-11-19 05:21:58,205 INFO L226 Difference]: Without dead ends: 744 [2023-11-19 05:21:58,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:21:58,207 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 76 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:21:58,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 8 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:21:58,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2023-11-19 05:21:58,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 623. [2023-11-19 05:21:58,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 607 states have (on average 2.639209225700165) internal successors, (1602), 622 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:58,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 1602 transitions. [2023-11-19 05:21:58,243 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 1602 transitions. Word has length 9 [2023-11-19 05:21:58,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:21:58,244 INFO L495 AbstractCegarLoop]: Abstraction has 623 states and 1602 transitions. [2023-11-19 05:21:58,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:58,244 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 1602 transitions. [2023-11-19 05:21:58,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 05:21:58,246 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:58,246 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:21:58,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 05:21:58,247 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 05:21:58,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:58,247 INFO L85 PathProgramCache]: Analyzing trace with hash 627567210, now seen corresponding path program 1 times [2023-11-19 05:21:58,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:21:58,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782599124] [2023-11-19 05:21:58,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:58,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:21:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:58,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:21:58,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:21:58,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782599124] [2023-11-19 05:21:58,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782599124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:21:58,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:21:58,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 05:21:58,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795208309] [2023-11-19 05:21:58,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:21:58,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 05:21:58,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:21:58,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 05:21:58,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:21:58,746 INFO L87 Difference]: Start difference. First operand 623 states and 1602 transitions. Second operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:59,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:21:59,052 INFO L93 Difference]: Finished difference Result 691 states and 1726 transitions. [2023-11-19 05:21:59,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:21:59,053 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 05:21:59,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:21:59,060 INFO L225 Difference]: With dead ends: 691 [2023-11-19 05:21:59,061 INFO L226 Difference]: Without dead ends: 691 [2023-11-19 05:21:59,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:21:59,063 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 73 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:21:59,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 14 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:21:59,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-11-19 05:21:59,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 671. [2023-11-19 05:21:59,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 653 states have (on average 2.5911179173047474) internal successors, (1692), 670 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:59,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 1692 transitions. [2023-11-19 05:21:59,098 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 1692 transitions. Word has length 9 [2023-11-19 05:21:59,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:21:59,098 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 1692 transitions. [2023-11-19 05:21:59,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:59,099 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 1692 transitions. [2023-11-19 05:21:59,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 05:21:59,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:59,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:21:59,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 05:21:59,105 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 05:21:59,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:59,105 INFO L85 PathProgramCache]: Analyzing trace with hash -258447072, now seen corresponding path program 1 times [2023-11-19 05:21:59,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:21:59,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627993920] [2023-11-19 05:21:59,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:59,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:21:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:59,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:21:59,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:21:59,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627993920] [2023-11-19 05:21:59,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627993920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:21:59,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:21:59,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:21:59,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758277012] [2023-11-19 05:21:59,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:21:59,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:21:59,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:21:59,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:21:59,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:21:59,473 INFO L87 Difference]: Start difference. First operand 671 states and 1692 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:59,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:21:59,841 INFO L93 Difference]: Finished difference Result 857 states and 2090 transitions. [2023-11-19 05:21:59,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:21:59,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 05:21:59,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:21:59,849 INFO L225 Difference]: With dead ends: 857 [2023-11-19 05:21:59,849 INFO L226 Difference]: Without dead ends: 857 [2023-11-19 05:21:59,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:21:59,851 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 68 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:21:59,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 8 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:21:59,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2023-11-19 05:21:59,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 737. [2023-11-19 05:21:59,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 719 states have (on average 2.588317107093185) internal successors, (1861), 736 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:59,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1861 transitions. [2023-11-19 05:21:59,882 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1861 transitions. Word has length 9 [2023-11-19 05:21:59,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:21:59,882 INFO L495 AbstractCegarLoop]: Abstraction has 737 states and 1861 transitions. [2023-11-19 05:21:59,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:21:59,882 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1861 transitions. [2023-11-19 05:21:59,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 05:21:59,883 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:59,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:21:59,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 05:21:59,884 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 05:21:59,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:59,885 INFO L85 PathProgramCache]: Analyzing trace with hash -266407876, now seen corresponding path program 2 times [2023-11-19 05:21:59,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:21:59,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805145635] [2023-11-19 05:21:59,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:59,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:21:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:00,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:22:00,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:00,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805145635] [2023-11-19 05:22:00,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805145635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:00,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:00,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:22:00,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489445184] [2023-11-19 05:22:00,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:00,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:22:00,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:00,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:22:00,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:22:00,222 INFO L87 Difference]: Start difference. First operand 737 states and 1861 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:22:00,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:22:00,650 INFO L93 Difference]: Finished difference Result 1006 states and 2451 transitions. [2023-11-19 05:22:00,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 05:22:00,651 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 05:22:00,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:22:00,665 INFO L225 Difference]: With dead ends: 1006 [2023-11-19 05:22:00,665 INFO L226 Difference]: Without dead ends: 1000 [2023-11-19 05:22:00,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-19 05:22:00,666 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:22:00,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 6 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:22:00,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2023-11-19 05:22:00,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 715. [2023-11-19 05:22:00,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 697 states have (on average 2.571018651362984) internal successors, (1792), 714 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:22:00,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 1792 transitions. [2023-11-19 05:22:00,701 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 1792 transitions. Word has length 9 [2023-11-19 05:22:00,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:22:00,702 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 1792 transitions. [2023-11-19 05:22:00,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:22:00,703 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 1792 transitions. [2023-11-19 05:22:00,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 05:22:00,703 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:00,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:22:00,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 05:22:00,704 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 05:22:00,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:00,705 INFO L85 PathProgramCache]: Analyzing trace with hash -266402292, now seen corresponding path program 2 times [2023-11-19 05:22:00,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:00,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707376574] [2023-11-19 05:22:00,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:00,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:01,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:22:01,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:01,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707376574] [2023-11-19 05:22:01,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707376574] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:01,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:01,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:22:01,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066936183] [2023-11-19 05:22:01,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:01,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:22:01,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:01,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:22:01,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:22:01,094 INFO L87 Difference]: Start difference. First operand 715 states and 1792 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:22:01,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:22:01,560 INFO L93 Difference]: Finished difference Result 944 states and 2272 transitions. [2023-11-19 05:22:01,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 05:22:01,561 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 05:22:01,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:22:01,570 INFO L225 Difference]: With dead ends: 944 [2023-11-19 05:22:01,570 INFO L226 Difference]: Without dead ends: 944 [2023-11-19 05:22:01,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-19 05:22:01,571 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 05:22:01,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 6 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 05:22:01,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2023-11-19 05:22:01,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 696. [2023-11-19 05:22:01,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 678 states have (on average 2.5589970501474926) internal successors, (1735), 695 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:22:01,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 1735 transitions. [2023-11-19 05:22:01,605 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 1735 transitions. Word has length 9 [2023-11-19 05:22:01,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:22:01,606 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 1735 transitions. [2023-11-19 05:22:01,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:22:01,606 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 1735 transitions. [2023-11-19 05:22:01,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 05:22:01,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:01,607 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:22:01,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 05:22:01,608 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 05:22:01,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:01,608 INFO L85 PathProgramCache]: Analyzing trace with hash -211344494, now seen corresponding path program 2 times [2023-11-19 05:22:01,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:01,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778843856] [2023-11-19 05:22:01,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:01,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:02,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:22:02,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:02,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778843856] [2023-11-19 05:22:02,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778843856] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:02,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:02,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 05:22:02,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901435439] [2023-11-19 05:22:02,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:02,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:22:02,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:02,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:22:02,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:22:02,546 INFO L87 Difference]: Start difference. First operand 696 states and 1735 transitions. Second operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:22:03,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:22:03,231 INFO L93 Difference]: Finished difference Result 708 states and 1769 transitions. [2023-11-19 05:22:03,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 05:22:03,232 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 05:22:03,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:22:03,239 INFO L225 Difference]: With dead ends: 708 [2023-11-19 05:22:03,239 INFO L226 Difference]: Without dead ends: 708 [2023-11-19 05:22:03,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2023-11-19 05:22:03,241 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 05:22:03,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 05:22:03,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2023-11-19 05:22:03,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 704. [2023-11-19 05:22:03,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 686 states have (on average 2.56268221574344) internal successors, (1758), 703 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:22:03,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1758 transitions. [2023-11-19 05:22:03,273 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1758 transitions. Word has length 9 [2023-11-19 05:22:03,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:22:03,275 INFO L495 AbstractCegarLoop]: Abstraction has 704 states and 1758 transitions. [2023-11-19 05:22:03,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:22:03,275 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1758 transitions. [2023-11-19 05:22:03,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 05:22:03,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:03,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:22:03,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 05:22:03,277 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 05:22:03,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:03,277 INFO L85 PathProgramCache]: Analyzing trace with hash -211344498, now seen corresponding path program 1 times [2023-11-19 05:22:03,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:03,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651861820] [2023-11-19 05:22:03,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:03,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:03,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:22:03,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:03,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651861820] [2023-11-19 05:22:03,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651861820] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:03,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:03,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:22:03,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600705773] [2023-11-19 05:22:03,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:03,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:22:03,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:03,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:22:03,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:22:03,799 INFO L87 Difference]: Start difference. First operand 704 states and 1758 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:22:04,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:22:04,155 INFO L93 Difference]: Finished difference Result 742 states and 1750 transitions. [2023-11-19 05:22:04,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 05:22:04,156 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 05:22:04,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:22:04,164 INFO L225 Difference]: With dead ends: 742 [2023-11-19 05:22:04,164 INFO L226 Difference]: Without dead ends: 742 [2023-11-19 05:22:04,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:22:04,165 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 93 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:22:04,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 11 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:22:04,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-11-19 05:22:04,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 636. [2023-11-19 05:22:04,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 618 states have (on average 2.5258899676375406) internal successors, (1561), 635 states have internal predecessors, (1561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:22:04,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 1561 transitions. [2023-11-19 05:22:04,203 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 1561 transitions. Word has length 9 [2023-11-19 05:22:04,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:22:04,203 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 1561 transitions. [2023-11-19 05:22:04,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:22:04,204 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 1561 transitions. [2023-11-19 05:22:04,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 05:22:04,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:04,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:22:04,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 05:22:04,206 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 05:22:04,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:04,207 INFO L85 PathProgramCache]: Analyzing trace with hash -211056194, now seen corresponding path program 3 times [2023-11-19 05:22:04,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:04,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997716872] [2023-11-19 05:22:04,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:04,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:04,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:22:04,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:04,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997716872] [2023-11-19 05:22:04,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997716872] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:04,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:04,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:22:04,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924025843] [2023-11-19 05:22:04,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:04,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:22:04,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:04,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:22:04,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:22:04,813 INFO L87 Difference]: Start difference. First operand 636 states and 1561 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:22:05,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:22:05,061 INFO L93 Difference]: Finished difference Result 274 states and 503 transitions. [2023-11-19 05:22:05,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:22:05,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 05:22:05,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:22:05,064 INFO L225 Difference]: With dead ends: 274 [2023-11-19 05:22:05,064 INFO L226 Difference]: Without dead ends: 274 [2023-11-19 05:22:05,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:22:05,066 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 76 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:22:05,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 10 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:22:05,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2023-11-19 05:22:05,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 266. [2023-11-19 05:22:05,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 254 states have (on average 1.9173228346456692) internal successors, (487), 265 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:22:05,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 487 transitions. [2023-11-19 05:22:05,080 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 487 transitions. Word has length 9 [2023-11-19 05:22:05,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:22:05,081 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 487 transitions. [2023-11-19 05:22:05,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:22:05,081 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 487 transitions. [2023-11-19 05:22:05,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 05:22:05,082 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:05,082 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:22:05,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 05:22:05,083 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 05:22:05,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:05,083 INFO L85 PathProgramCache]: Analyzing trace with hash 151254777, now seen corresponding path program 1 times [2023-11-19 05:22:05,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:05,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83478492] [2023-11-19 05:22:05,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:05,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:06,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:22:06,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:06,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83478492] [2023-11-19 05:22:06,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83478492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:06,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:06,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 05:22:06,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375188625] [2023-11-19 05:22:06,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:06,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 05:22:06,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:06,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 05:22:06,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-19 05:22:06,332 INFO L87 Difference]: Start difference. First operand 266 states and 487 transitions. Second operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:22:07,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:22:07,403 INFO L93 Difference]: Finished difference Result 324 states and 578 transitions. [2023-11-19 05:22:07,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-19 05:22:07,409 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-19 05:22:07,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:22:07,412 INFO L225 Difference]: With dead ends: 324 [2023-11-19 05:22:07,418 INFO L226 Difference]: Without dead ends: 324 [2023-11-19 05:22:07,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2023-11-19 05:22:07,421 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 54 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:22:07,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 05:22:07,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2023-11-19 05:22:07,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 272. [2023-11-19 05:22:07,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 260 states have (on average 1.9153846153846155) internal successors, (498), 271 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:22:07,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 498 transitions. [2023-11-19 05:22:07,435 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 498 transitions. Word has length 12 [2023-11-19 05:22:07,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:22:07,437 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 498 transitions. [2023-11-19 05:22:07,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:22:07,438 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 498 transitions. [2023-11-19 05:22:07,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 05:22:07,439 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:07,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:22:07,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 05:22:07,440 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-19 05:22:07,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:07,442 INFO L85 PathProgramCache]: Analyzing trace with hash 151254776, now seen corresponding path program 1 times [2023-11-19 05:22:07,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:07,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501270631] [2023-11-19 05:22:07,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:07,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:08,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:22:08,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:08,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501270631] [2023-11-19 05:22:08,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501270631] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:08,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:08,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 05:22:08,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772423981] [2023-11-19 05:22:08,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:08,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 05:22:08,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:08,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 05:22:08,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-19 05:22:08,520 INFO L87 Difference]: Start difference. First operand 272 states and 498 transitions. Second operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:22:09,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:22:09,399 INFO L93 Difference]: Finished difference Result 362 states and 645 transitions. [2023-11-19 05:22:09,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 05:22:09,400 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-19 05:22:09,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:22:09,403 INFO L225 Difference]: With dead ends: 362 [2023-11-19 05:22:09,403 INFO L226 Difference]: Without dead ends: 362 [2023-11-19 05:22:09,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2023-11-19 05:22:09,404 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 65 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:22:09,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 4 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 05:22:09,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states.