./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje --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 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:54:58,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:54:58,200 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 06:54:58,207 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:54:58,209 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:54:58,253 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:54:58,254 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:54:58,255 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:54:58,256 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:54:58,257 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:54:58,257 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:54:58,257 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:54:58,258 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:54:58,259 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:54:58,261 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:54:58,262 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:54:58,262 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:54:58,263 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:54:58,263 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:54:58,264 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:54:58,267 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:54:58,268 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:54:58,269 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:54:58,269 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:54:58,269 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:54:58,270 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:54:58,270 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:54:58,270 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:54:58,271 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:54:58,271 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:54:58,274 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:54:58,275 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:54:58,275 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:54:58,275 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:54:58,276 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:54:58,276 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:54:58,276 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:54:58,277 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:54:58,277 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:54:58,277 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:54:58,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:54:58,278 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:54:58,279 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:54:58,279 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:54:58,279 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:54:58,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:54:58,280 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:54:58,280 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:54:58,281 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:54:58,281 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_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a [2024-11-09 06:54:58,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:54:58,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:54:58,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:54:58,652 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:54:58,653 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:54:58,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i Unable to find full path for "g++" [2024-11-09 06:55:00,714 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:55:01,139 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:55:01,140 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i [2024-11-09 06:55:01,166 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/data/b8aa06c5c/e693b9bc80994741b42380ada831102e/FLAG511987027 [2024-11-09 06:55:01,182 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/data/b8aa06c5c/e693b9bc80994741b42380ada831102e [2024-11-09 06:55:01,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:55:01,186 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:55:01,188 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:55:01,188 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:55:01,194 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:55:01,195 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:55:01" (1/1) ... [2024-11-09 06:55:01,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34bf6b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:01, skipping insertion in model container [2024-11-09 06:55:01,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:55:01" (1/1) ... [2024-11-09 06:55:01,262 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:55:02,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:55:02,141 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:55:02,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:55:02,301 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:55:02,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:02 WrapperNode [2024-11-09 06:55:02,302 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:55:02,303 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:55:02,303 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:55:02,303 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:55:02,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:02" (1/1) ... [2024-11-09 06:55:02,337 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:02" (1/1) ... [2024-11-09 06:55:02,376 INFO L138 Inliner]: procedures = 364, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2024-11-09 06:55:02,377 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:55:02,378 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:55:02,378 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:55:02,379 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:55:02,389 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:02" (1/1) ... [2024-11-09 06:55:02,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:02" (1/1) ... [2024-11-09 06:55:02,396 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:02" (1/1) ... [2024-11-09 06:55:02,397 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:02" (1/1) ... [2024-11-09 06:55:02,406 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:02" (1/1) ... [2024-11-09 06:55:02,413 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:02" (1/1) ... [2024-11-09 06:55:02,415 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:02" (1/1) ... [2024-11-09 06:55:02,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:02" (1/1) ... [2024-11-09 06:55:02,423 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:55:02,423 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:55:02,427 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:55:02,428 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:55:02,428 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:02" (1/1) ... [2024-11-09 06:55:02,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:55:02,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:55:02,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:55:02,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:55:02,533 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 06:55:02,534 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 06:55:02,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:55:02,534 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2024-11-09 06:55:02,534 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2024-11-09 06:55:02,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:55:02,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:55:02,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:55:02,539 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:55:02,718 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:55:02,721 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:55:02,958 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:55:02,958 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:55:03,168 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:55:03,168 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:55:03,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:55:03 BoogieIcfgContainer [2024-11-09 06:55:03,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:55:03,172 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:55:03,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:55:03,178 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:55:03,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:55:01" (1/3) ... [2024-11-09 06:55:03,182 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d56a99c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:55:03, skipping insertion in model container [2024-11-09 06:55:03,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:02" (2/3) ... [2024-11-09 06:55:03,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d56a99c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:55:03, skipping insertion in model container [2024-11-09 06:55:03,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:55:03" (3/3) ... [2024-11-09 06:55:03,185 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2024-11-09 06:55:03,202 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:55:03,202 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-09 06:55:03,202 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:55:03,256 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 06:55:03,288 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 40 transitions, 87 flow [2024-11-09 06:55:03,345 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 272 states, 248 states have (on average 2.306451612903226) internal successors, (572), 271 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:03,387 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:55:03,394 INFO L333 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, 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;@629d7850, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:55:03,394 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-09 06:55:03,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 272 states, 248 states have (on average 2.306451612903226) internal successors, (572), 271 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:03,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 06:55:03,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:03,406 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:03,406 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 06:55:03,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:03,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1118608773, now seen corresponding path program 1 times [2024-11-09 06:55:03,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:03,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040038348] [2024-11-09 06:55:03,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:03,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:03,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:03,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:03,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040038348] [2024-11-09 06:55:03,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040038348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:03,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:03,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:55:03,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741710906] [2024-11-09 06:55:03,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:03,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:55:03,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:03,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:55:03,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:55:03,776 INFO L87 Difference]: Start difference. First operand has 272 states, 248 states have (on average 2.306451612903226) internal successors, (572), 271 states have internal predecessors, (572), 0 states have call successors, (0), 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 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2024-11-09 06:55:03,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:03,987 INFO L93 Difference]: Finished difference Result 433 states and 920 transitions. [2024-11-09 06:55:03,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:55:03,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 [2024-11-09 06:55:03,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:04,006 INFO L225 Difference]: With dead ends: 433 [2024-11-09 06:55:04,006 INFO L226 Difference]: Without dead ends: 371 [2024-11-09 06:55:04,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:55:04,014 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 40 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:04,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 71 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:04,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-09 06:55:04,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 369. [2024-11-09 06:55:04,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 345 states have (on average 2.272463768115942) internal successors, (784), 368 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:04,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 784 transitions. [2024-11-09 06:55:04,109 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 784 transitions. Word has length 8 [2024-11-09 06:55:04,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:04,110 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 784 transitions. [2024-11-09 06:55:04,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2024-11-09 06:55:04,110 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 784 transitions. [2024-11-09 06:55:04,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 06:55:04,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:04,112 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:04,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:55:04,113 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_mutexErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 06:55:04,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:04,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1210758974, now seen corresponding path program 1 times [2024-11-09 06:55:04,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:04,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076621087] [2024-11-09 06:55:04,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:04,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:04,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:04,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:04,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076621087] [2024-11-09 06:55:04,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076621087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:04,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:04,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:55:04,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378648063] [2024-11-09 06:55:04,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:04,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:55:04,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:04,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:55:04,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:55:04,337 INFO L87 Difference]: Start difference. First operand 369 states and 784 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2024-11-09 06:55:04,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:04,519 INFO L93 Difference]: Finished difference Result 613 states and 1300 transitions. [2024-11-09 06:55:04,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:55:04,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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 [2024-11-09 06:55:04,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:04,524 INFO L225 Difference]: With dead ends: 613 [2024-11-09 06:55:04,524 INFO L226 Difference]: Without dead ends: 539 [2024-11-09 06:55:04,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:55:04,526 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 39 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:04,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 80 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:04,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-11-09 06:55:04,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 509. [2024-11-09 06:55:04,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 485 states have (on average 2.2618556701030927) internal successors, (1097), 508 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:04,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 1097 transitions. [2024-11-09 06:55:04,580 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 1097 transitions. Word has length 12 [2024-11-09 06:55:04,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:04,581 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 1097 transitions. [2024-11-09 06:55:04,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2024-11-09 06:55:04,582 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 1097 transitions. [2024-11-09 06:55:04,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 06:55:04,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:04,584 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:04,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:55:04,585 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 06:55:04,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:04,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1480011288, now seen corresponding path program 1 times [2024-11-09 06:55:04,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:04,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064661177] [2024-11-09 06:55:04,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:04,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:04,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:04,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:04,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064661177] [2024-11-09 06:55:04,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064661177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:04,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:04,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:55:04,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209051440] [2024-11-09 06:55:04,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:04,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:55:04,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:04,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:55:04,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:55:04,724 INFO L87 Difference]: Start difference. First operand 509 states and 1097 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2024-11-09 06:55:04,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:04,894 INFO L93 Difference]: Finished difference Result 863 states and 1847 transitions. [2024-11-09 06:55:04,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:55:04,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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 [2024-11-09 06:55:04,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:04,903 INFO L225 Difference]: With dead ends: 863 [2024-11-09 06:55:04,907 INFO L226 Difference]: Without dead ends: 780 [2024-11-09 06:55:04,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:55:04,910 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 41 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:04,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 77 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:04,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2024-11-09 06:55:04,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 740. [2024-11-09 06:55:04,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 716 states have (on average 2.2458100558659218) internal successors, (1608), 739 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:04,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1608 transitions. [2024-11-09 06:55:04,960 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1608 transitions. Word has length 12 [2024-11-09 06:55:04,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:04,960 INFO L471 AbstractCegarLoop]: Abstraction has 740 states and 1608 transitions. [2024-11-09 06:55:04,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2024-11-09 06:55:04,961 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1608 transitions. [2024-11-09 06:55:04,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 06:55:04,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:04,962 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:04,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:55:04,963 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 06:55:04,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:04,963 INFO L85 PathProgramCache]: Analyzing trace with hash -732298952, now seen corresponding path program 1 times [2024-11-09 06:55:04,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:04,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968813180] [2024-11-09 06:55:04,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:04,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:05,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:05,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:05,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968813180] [2024-11-09 06:55:05,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968813180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:05,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:05,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:55:05,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620094072] [2024-11-09 06:55:05,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:05,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:55:05,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:05,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:55:05,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:55:05,121 INFO L87 Difference]: Start difference. First operand 740 states and 1608 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:05,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:05,213 INFO L93 Difference]: Finished difference Result 1144 states and 2508 transitions. [2024-11-09 06:55:05,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:55:05,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2024-11-09 06:55:05,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:05,224 INFO L225 Difference]: With dead ends: 1144 [2024-11-09 06:55:05,224 INFO L226 Difference]: Without dead ends: 602 [2024-11-09 06:55:05,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:55:05,231 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 25 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:05,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 49 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:05,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-11-09 06:55:05,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 598. [2024-11-09 06:55:05,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 574 states have (on average 2.1986062717770034) internal successors, (1262), 597 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:05,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 1262 transitions. [2024-11-09 06:55:05,270 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 1262 transitions. Word has length 15 [2024-11-09 06:55:05,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:05,270 INFO L471 AbstractCegarLoop]: Abstraction has 598 states and 1262 transitions. [2024-11-09 06:55:05,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:05,271 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 1262 transitions. [2024-11-09 06:55:05,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 06:55:05,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:05,272 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:05,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:55:05,273 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 06:55:05,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:05,275 INFO L85 PathProgramCache]: Analyzing trace with hash -375921802, now seen corresponding path program 1 times [2024-11-09 06:55:05,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:05,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116508705] [2024-11-09 06:55:05,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:05,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:05,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:05,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:05,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116508705] [2024-11-09 06:55:05,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116508705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:05,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:05,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:55:05,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624030297] [2024-11-09 06:55:05,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:05,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:55:05,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:05,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:55:05,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:55:05,433 INFO L87 Difference]: Start difference. First operand 598 states and 1262 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:05,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:05,593 INFO L93 Difference]: Finished difference Result 850 states and 1804 transitions. [2024-11-09 06:55:05,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:55:05,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2024-11-09 06:55:05,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:05,601 INFO L225 Difference]: With dead ends: 850 [2024-11-09 06:55:05,601 INFO L226 Difference]: Without dead ends: 839 [2024-11-09 06:55:05,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:55:05,603 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 37 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:05,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 90 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:05,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2024-11-09 06:55:05,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 739. [2024-11-09 06:55:05,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 715 states have (on average 2.2293706293706292) internal successors, (1594), 738 states have internal predecessors, (1594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:05,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1594 transitions. [2024-11-09 06:55:05,645 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1594 transitions. Word has length 16 [2024-11-09 06:55:05,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:05,645 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 1594 transitions. [2024-11-09 06:55:05,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:05,646 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1594 transitions. [2024-11-09 06:55:05,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 06:55:05,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:05,647 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:05,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:55:05,648 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 06:55:05,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:05,650 INFO L85 PathProgramCache]: Analyzing trace with hash -2136387338, now seen corresponding path program 1 times [2024-11-09 06:55:05,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:05,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000628213] [2024-11-09 06:55:05,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:05,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:05,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:05,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:05,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000628213] [2024-11-09 06:55:05,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000628213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:05,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:05,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:55:05,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967955510] [2024-11-09 06:55:05,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:05,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:55:05,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:05,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:55:05,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:55:05,741 INFO L87 Difference]: Start difference. First operand 739 states and 1594 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:05,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:05,935 INFO L93 Difference]: Finished difference Result 1001 states and 2125 transitions. [2024-11-09 06:55:05,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:55:05,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2024-11-09 06:55:05,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:05,943 INFO L225 Difference]: With dead ends: 1001 [2024-11-09 06:55:05,943 INFO L226 Difference]: Without dead ends: 976 [2024-11-09 06:55:05,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:55:05,945 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 69 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:05,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 135 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:05,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2024-11-09 06:55:05,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 915. [2024-11-09 06:55:05,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 891 states have (on average 2.234567901234568) internal successors, (1991), 914 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:05,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1991 transitions. [2024-11-09 06:55:05,999 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1991 transitions. Word has length 16 [2024-11-09 06:55:05,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:06,000 INFO L471 AbstractCegarLoop]: Abstraction has 915 states and 1991 transitions. [2024-11-09 06:55:06,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:06,000 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1991 transitions. [2024-11-09 06:55:06,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 06:55:06,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:06,001 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:06,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:55:06,002 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 06:55:06,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:06,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1231326308, now seen corresponding path program 1 times [2024-11-09 06:55:06,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:06,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651128084] [2024-11-09 06:55:06,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:06,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:06,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:06,096 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:06,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651128084] [2024-11-09 06:55:06,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651128084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:06,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:06,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:55:06,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791266355] [2024-11-09 06:55:06,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:06,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:55:06,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:06,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:55:06,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:55:06,099 INFO L87 Difference]: Start difference. First operand 915 states and 1991 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:06,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:06,231 INFO L93 Difference]: Finished difference Result 992 states and 2133 transitions. [2024-11-09 06:55:06,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:55:06,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2024-11-09 06:55:06,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:06,245 INFO L225 Difference]: With dead ends: 992 [2024-11-09 06:55:06,245 INFO L226 Difference]: Without dead ends: 981 [2024-11-09 06:55:06,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:55:06,247 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 35 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:06,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 76 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:06,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2024-11-09 06:55:06,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 939. [2024-11-09 06:55:06,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 915 states have (on average 2.225136612021858) internal successors, (2036), 938 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:06,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 2036 transitions. [2024-11-09 06:55:06,313 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 2036 transitions. Word has length 17 [2024-11-09 06:55:06,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:06,313 INFO L471 AbstractCegarLoop]: Abstraction has 939 states and 2036 transitions. [2024-11-09 06:55:06,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:06,314 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 2036 transitions. [2024-11-09 06:55:06,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 06:55:06,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:06,314 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:06,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:55:06,315 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 06:55:06,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:06,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1803497725, now seen corresponding path program 1 times [2024-11-09 06:55:06,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:06,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42715134] [2024-11-09 06:55:06,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:06,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:06,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:06,402 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:06,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42715134] [2024-11-09 06:55:06,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42715134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:06,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:06,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:55:06,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262729998] [2024-11-09 06:55:06,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:06,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:55:06,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:06,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:55:06,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:55:06,404 INFO L87 Difference]: Start difference. First operand 939 states and 2036 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:06,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:06,563 INFO L93 Difference]: Finished difference Result 962 states and 2075 transitions. [2024-11-09 06:55:06,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:55:06,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2024-11-09 06:55:06,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:06,571 INFO L225 Difference]: With dead ends: 962 [2024-11-09 06:55:06,571 INFO L226 Difference]: Without dead ends: 955 [2024-11-09 06:55:06,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:55:06,573 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 46 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:06,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 110 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:06,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2024-11-09 06:55:06,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 955. [2024-11-09 06:55:06,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 931 states have (on average 2.21374865735768) internal successors, (2061), 954 states have internal predecessors, (2061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:06,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 2061 transitions. [2024-11-09 06:55:06,624 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 2061 transitions. Word has length 17 [2024-11-09 06:55:06,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:06,625 INFO L471 AbstractCegarLoop]: Abstraction has 955 states and 2061 transitions. [2024-11-09 06:55:06,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:06,625 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 2061 transitions. [2024-11-09 06:55:06,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 06:55:06,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:06,626 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:06,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:55:06,627 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 06:55:06,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:06,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1771183918, now seen corresponding path program 1 times [2024-11-09 06:55:06,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:06,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386358274] [2024-11-09 06:55:06,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:06,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:06,729 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:06,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:06,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386358274] [2024-11-09 06:55:06,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386358274] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:55:06,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037445060] [2024-11-09 06:55:06,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:06,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:06,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:55:06,733 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:55:06,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:55:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:06,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:55:06,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:06,921 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:06,922 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:55:06,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037445060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:06,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:55:06,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-09 06:55:06,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141068364] [2024-11-09 06:55:06,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:06,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:55:06,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:06,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:55:06,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:55:06,924 INFO L87 Difference]: Start difference. First operand 955 states and 2061 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:07,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:07,054 INFO L93 Difference]: Finished difference Result 956 states and 2061 transitions. [2024-11-09 06:55:07,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:55:07,055 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2024-11-09 06:55:07,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:07,060 INFO L225 Difference]: With dead ends: 956 [2024-11-09 06:55:07,060 INFO L226 Difference]: Without dead ends: 931 [2024-11-09 06:55:07,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:55:07,062 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 113 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:07,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 53 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:07,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-11-09 06:55:07,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 642. [2024-11-09 06:55:07,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 626 states have (on average 2.1118210862619806) internal successors, (1322), 641 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:07,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 1322 transitions. [2024-11-09 06:55:07,099 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 1322 transitions. Word has length 18 [2024-11-09 06:55:07,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:07,102 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 1322 transitions. [2024-11-09 06:55:07,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:07,102 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 1322 transitions. [2024-11-09 06:55:07,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 06:55:07,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:07,103 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:07,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:55:07,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-09 06:55:07,304 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 06:55:07,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:07,304 INFO L85 PathProgramCache]: Analyzing trace with hash 927873703, now seen corresponding path program 1 times [2024-11-09 06:55:07,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:07,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13235086] [2024-11-09 06:55:07,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:07,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:07,414 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:07,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:07,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13235086] [2024-11-09 06:55:07,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13235086] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:55:07,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244628193] [2024-11-09 06:55:07,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:07,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:07,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:55:07,417 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:55:07,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:55:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:07,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:55:07,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:07,547 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:07,547 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:55:07,634 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:07,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244628193] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:55:07,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1808448403] [2024-11-09 06:55:07,642 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 06:55:07,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:55:07,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-09 06:55:07,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118658613] [2024-11-09 06:55:07,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:55:07,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:55:07,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:07,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:55:07,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:55:07,647 INFO L87 Difference]: Start difference. First operand 642 states and 1322 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:08,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:08,111 INFO L93 Difference]: Finished difference Result 2250 states and 4768 transitions. [2024-11-09 06:55:08,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:55:08,112 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 0 states have call successors, (0), 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 19 [2024-11-09 06:55:08,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:08,123 INFO L225 Difference]: With dead ends: 2250 [2024-11-09 06:55:08,123 INFO L226 Difference]: Without dead ends: 2219 [2024-11-09 06:55:08,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2024-11-09 06:55:08,125 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 401 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:08,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 274 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:55:08,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2024-11-09 06:55:08,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 1306. [2024-11-09 06:55:08,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1290 states have (on average 2.0860465116279068) internal successors, (2691), 1305 states have internal predecessors, (2691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:08,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 2691 transitions. [2024-11-09 06:55:08,213 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 2691 transitions. Word has length 19 [2024-11-09 06:55:08,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:08,213 INFO L471 AbstractCegarLoop]: Abstraction has 1306 states and 2691 transitions. [2024-11-09 06:55:08,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:08,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 2691 transitions. [2024-11-09 06:55:08,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 06:55:08,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:08,215 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:08,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:55:08,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 06:55:08,419 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread_function_mutexErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 06:55:08,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:08,419 INFO L85 PathProgramCache]: Analyzing trace with hash -123719147, now seen corresponding path program 1 times [2024-11-09 06:55:08,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:08,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339381304] [2024-11-09 06:55:08,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:08,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:08,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:08,508 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:08,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:08,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339381304] [2024-11-09 06:55:08,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339381304] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:55:08,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935243284] [2024-11-09 06:55:08,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:08,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:08,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:55:08,511 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:55:08,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:55:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:08,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:55:08,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:08,673 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:08,673 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:55:08,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935243284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:08,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:55:08,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 06:55:08,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457817012] [2024-11-09 06:55:08,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:08,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:55:08,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:08,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:55:08,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:55:08,676 INFO L87 Difference]: Start difference. First operand 1306 states and 2691 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:08,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:08,882 INFO L93 Difference]: Finished difference Result 1316 states and 2700 transitions. [2024-11-09 06:55:08,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:55:08,883 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2024-11-09 06:55:08,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:08,890 INFO L225 Difference]: With dead ends: 1316 [2024-11-09 06:55:08,890 INFO L226 Difference]: Without dead ends: 1267 [2024-11-09 06:55:08,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:55:08,892 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 84 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:08,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 123 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:08,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2024-11-09 06:55:08,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1257. [2024-11-09 06:55:08,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1245 states have (on average 2.078714859437751) internal successors, (2588), 1256 states have internal predecessors, (2588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:08,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2588 transitions. [2024-11-09 06:55:08,966 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2588 transitions. Word has length 22 [2024-11-09 06:55:08,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:08,966 INFO L471 AbstractCegarLoop]: Abstraction has 1257 states and 2588 transitions. [2024-11-09 06:55:08,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:08,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2588 transitions. [2024-11-09 06:55:08,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 06:55:08,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:08,967 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:08,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 06:55:09,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 06:55:09,172 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 06:55:09,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:09,172 INFO L85 PathProgramCache]: Analyzing trace with hash 575612093, now seen corresponding path program 1 times [2024-11-09 06:55:09,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:09,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424661476] [2024-11-09 06:55:09,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:09,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:09,270 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:09,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:09,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424661476] [2024-11-09 06:55:09,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424661476] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:55:09,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245055765] [2024-11-09 06:55:09,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:09,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:09,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:55:09,274 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:55:09,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:55:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:09,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:55:09,368 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:09,431 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:09,432 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:55:09,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245055765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:09,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:55:09,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 06:55:09,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373552572] [2024-11-09 06:55:09,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:09,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:55:09,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:09,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:55:09,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:55:09,434 INFO L87 Difference]: Start difference. First operand 1257 states and 2588 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:09,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:09,677 INFO L93 Difference]: Finished difference Result 1267 states and 2597 transitions. [2024-11-09 06:55:09,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:55:09,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2024-11-09 06:55:09,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:09,687 INFO L225 Difference]: With dead ends: 1267 [2024-11-09 06:55:09,687 INFO L226 Difference]: Without dead ends: 1218 [2024-11-09 06:55:09,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:55:09,689 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 76 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:09,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 116 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:55:09,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2024-11-09 06:55:09,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1208. [2024-11-09 06:55:09,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 1199 states have (on average 2.071726438698916) internal successors, (2484), 1207 states have internal predecessors, (2484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:09,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 2484 transitions. [2024-11-09 06:55:09,796 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 2484 transitions. Word has length 22 [2024-11-09 06:55:09,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:09,798 INFO L471 AbstractCegarLoop]: Abstraction has 1208 states and 2484 transitions. [2024-11-09 06:55:09,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:09,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 2484 transitions. [2024-11-09 06:55:09,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 06:55:09,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:09,800 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 06:55:09,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 06:55:10,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 06:55:10,001 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread_function_mutexErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 06:55:10,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:10,001 INFO L85 PathProgramCache]: Analyzing trace with hash 459674058, now seen corresponding path program 1 times [2024-11-09 06:55:10,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:10,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099602570] [2024-11-09 06:55:10,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:10,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:10,050 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:10,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:10,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099602570] [2024-11-09 06:55:10,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099602570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:10,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:10,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:55:10,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963843526] [2024-11-09 06:55:10,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:10,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:55:10,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:10,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:55:10,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:55:10,052 INFO L87 Difference]: Start difference. First operand 1208 states and 2484 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:10,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:10,190 INFO L93 Difference]: Finished difference Result 1344 states and 2692 transitions. [2024-11-09 06:55:10,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:55:10,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2024-11-09 06:55:10,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:10,197 INFO L225 Difference]: With dead ends: 1344 [2024-11-09 06:55:10,198 INFO L226 Difference]: Without dead ends: 1160 [2024-11-09 06:55:10,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:55:10,199 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 33 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:10,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 58 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:10,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-11-09 06:55:10,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 962. [2024-11-09 06:55:10,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 956 states have (on average 1.9989539748953975) internal successors, (1911), 961 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:10,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1911 transitions. [2024-11-09 06:55:10,264 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1911 transitions. Word has length 23 [2024-11-09 06:55:10,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:10,264 INFO L471 AbstractCegarLoop]: Abstraction has 962 states and 1911 transitions. [2024-11-09 06:55:10,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:10,265 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1911 transitions. [2024-11-09 06:55:10,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 06:55:10,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:10,266 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 06:55:10,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:55:10,266 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 06:55:10,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:10,266 INFO L85 PathProgramCache]: Analyzing trace with hash 664105997, now seen corresponding path program 1 times [2024-11-09 06:55:10,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:10,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723259725] [2024-11-09 06:55:10,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:10,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:10,311 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:10,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:10,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723259725] [2024-11-09 06:55:10,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723259725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:10,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:10,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:55:10,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056466558] [2024-11-09 06:55:10,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:10,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:55:10,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:10,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:55:10,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:55:10,313 INFO L87 Difference]: Start difference. First operand 962 states and 1911 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:10,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:10,441 INFO L93 Difference]: Finished difference Result 1003 states and 1952 transitions. [2024-11-09 06:55:10,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:55:10,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2024-11-09 06:55:10,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:10,447 INFO L225 Difference]: With dead ends: 1003 [2024-11-09 06:55:10,448 INFO L226 Difference]: Without dead ends: 928 [2024-11-09 06:55:10,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:55:10,449 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 31 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:10,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 42 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:10,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2024-11-09 06:55:10,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 653. [2024-11-09 06:55:10,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 649 states have (on average 1.9568567026194146) internal successors, (1270), 652 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:10,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 1270 transitions. [2024-11-09 06:55:10,523 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 1270 transitions. Word has length 23 [2024-11-09 06:55:10,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:10,523 INFO L471 AbstractCegarLoop]: Abstraction has 653 states and 1270 transitions. [2024-11-09 06:55:10,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:10,524 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 1270 transitions. [2024-11-09 06:55:10,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 06:55:10,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:10,525 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:10,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:55:10,526 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 06:55:10,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:10,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1352823103, now seen corresponding path program 1 times [2024-11-09 06:55:10,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:10,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838621481] [2024-11-09 06:55:10,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:10,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:10,831 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:10,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:10,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838621481] [2024-11-09 06:55:10,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838621481] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:55:10,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178091350] [2024-11-09 06:55:10,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:10,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:10,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:55:10,834 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:55:10,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 06:55:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:10,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 06:55:10,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:11,075 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:11,075 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:55:11,286 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:11,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178091350] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:55:11,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1693593315] [2024-11-09 06:55:11,287 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 06:55:11,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:55:11,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-09 06:55:11,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133386514] [2024-11-09 06:55:11,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:55:11,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 06:55:11,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:11,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 06:55:11,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2024-11-09 06:55:11,291 INFO L87 Difference]: Start difference. First operand 653 states and 1270 transitions. Second operand has 22 states, 21 states have (on average 4.904761904761905) internal successors, (103), 21 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:13,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:13,597 INFO L93 Difference]: Finished difference Result 5352 states and 10710 transitions. [2024-11-09 06:55:13,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-09 06:55:13,597 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.904761904761905) internal successors, (103), 21 states have internal predecessors, (103), 0 states have call successors, (0), 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 47 [2024-11-09 06:55:13,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:13,627 INFO L225 Difference]: With dead ends: 5352 [2024-11-09 06:55:13,627 INFO L226 Difference]: Without dead ends: 5333 [2024-11-09 06:55:13,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1153 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1191, Invalid=2591, Unknown=0, NotChecked=0, Total=3782 [2024-11-09 06:55:13,632 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 1501 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:13,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 569 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 06:55:13,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5333 states. [2024-11-09 06:55:13,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5333 to 1503. [2024-11-09 06:55:13,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1499 states have (on average 1.971314209472982) internal successors, (2955), 1502 states have internal predecessors, (2955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:13,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 2955 transitions. [2024-11-09 06:55:13,817 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 2955 transitions. Word has length 47 [2024-11-09 06:55:13,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:13,819 INFO L471 AbstractCegarLoop]: Abstraction has 1503 states and 2955 transitions. [2024-11-09 06:55:13,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.904761904761905) internal successors, (103), 21 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:13,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 2955 transitions. [2024-11-09 06:55:13,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 06:55:13,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:13,823 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:13,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 06:55:14,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 06:55:14,027 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 06:55:14,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:14,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1431437438, now seen corresponding path program 1 times [2024-11-09 06:55:14,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:14,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996012423] [2024-11-09 06:55:14,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:14,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:14,683 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 252 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:14,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:14,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996012423] [2024-11-09 06:55:14,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996012423] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:55:14,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866280674] [2024-11-09 06:55:14,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:14,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:14,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:55:14,687 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:55:14,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 06:55:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:14,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 06:55:14,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:15,035 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 252 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:15,035 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:55:15,571 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 252 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:15,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866280674] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:55:15,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [605620229] [2024-11-09 06:55:15,572 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 06:55:15,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:55:15,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 36 [2024-11-09 06:55:15,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953428861] [2024-11-09 06:55:15,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:55:15,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-09 06:55:15,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:15,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-09 06:55:15,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=1026, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 06:55:15,575 INFO L87 Difference]: Start difference. First operand 1503 states and 2955 transitions. Second operand has 38 states, 37 states have (on average 4.945945945945946) internal successors, (183), 37 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:24,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:24,592 INFO L93 Difference]: Finished difference Result 17353 states and 34678 transitions. [2024-11-09 06:55:24,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2024-11-09 06:55:24,593 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 4.945945945945946) internal successors, (183), 37 states have internal predecessors, (183), 0 states have call successors, (0), 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 87 [2024-11-09 06:55:24,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:24,650 INFO L225 Difference]: With dead ends: 17353 [2024-11-09 06:55:24,650 INFO L226 Difference]: Without dead ends: 17334 [2024-11-09 06:55:24,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14979 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=10587, Invalid=21993, Unknown=0, NotChecked=0, Total=32580 [2024-11-09 06:55:24,661 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 5133 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 2102 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5133 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 2217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 2102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:24,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5133 Valid, 1617 Invalid, 2217 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [115 Valid, 2102 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 06:55:24,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17334 states. [2024-11-09 06:55:25,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17334 to 2737. [2024-11-09 06:55:25,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2737 states, 2733 states have (on average 1.9663373582144164) internal successors, (5374), 2736 states have internal predecessors, (5374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:25,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2737 states to 2737 states and 5374 transitions. [2024-11-09 06:55:25,088 INFO L78 Accepts]: Start accepts. Automaton has 2737 states and 5374 transitions. Word has length 87 [2024-11-09 06:55:25,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:25,088 INFO L471 AbstractCegarLoop]: Abstraction has 2737 states and 5374 transitions. [2024-11-09 06:55:25,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 4.945945945945946) internal successors, (183), 37 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:25,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2737 states and 5374 transitions. [2024-11-09 06:55:25,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-09 06:55:25,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:25,097 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:25,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 06:55:25,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 06:55:25,298 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 06:55:25,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:25,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1234303019, now seen corresponding path program 2 times [2024-11-09 06:55:25,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:25,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130121487] [2024-11-09 06:55:25,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:25,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:27,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 0 proven. 1155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:27,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:27,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130121487] [2024-11-09 06:55:27,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130121487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:55:27,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901064065] [2024-11-09 06:55:27,162 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:55:27,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:27,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:55:27,165 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:55:27,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 06:55:27,416 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2024-11-09 06:55:27,416 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:55:27,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-09 06:55:27,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:27,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 0 proven. 1155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:27,777 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:55:29,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 0 proven. 1155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:29,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901064065] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:55:29,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [206483573] [2024-11-09 06:55:29,004 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 06:55:29,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:55:29,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 68 [2024-11-09 06:55:29,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296667106] [2024-11-09 06:55:29,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:55:29,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2024-11-09 06:55:29,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:29,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2024-11-09 06:55:29,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1260, Invalid=3570, Unknown=0, NotChecked=0, Total=4830 [2024-11-09 06:55:29,009 INFO L87 Difference]: Start difference. First operand 2737 states and 5374 transitions. Second operand has 70 states, 69 states have (on average 4.971014492753623) internal successors, (343), 69 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:44,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:56:44,373 INFO L93 Difference]: Finished difference Result 60845 states and 121789 transitions. [2024-11-09 06:56:44,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 611 states. [2024-11-09 06:56:44,374 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 69 states have (on average 4.971014492753623) internal successors, (343), 69 states have internal predecessors, (343), 0 states have call successors, (0), 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 167 [2024-11-09 06:56:44,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:56:44,601 INFO L225 Difference]: With dead ends: 60845 [2024-11-09 06:56:44,601 INFO L226 Difference]: Without dead ends: 60826 [2024-11-09 06:56:44,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 909 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 612 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228089 ImplicationChecksByTransitivity, 20.5s TimeCoverageRelationStatistics Valid=124271, Invalid=252111, Unknown=0, NotChecked=0, Total=376382 [2024-11-09 06:56:44,663 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 18914 mSDsluCounter, 5487 mSDsCounter, 0 mSdLazyCounter, 6905 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18914 SdHoareTripleChecker+Valid, 5536 SdHoareTripleChecker+Invalid, 7271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 6905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:56:44,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18914 Valid, 5536 Invalid, 7271 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [366 Valid, 6905 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-09 06:56:44,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60826 states. [2024-11-09 06:56:45,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60826 to 5271. [2024-11-09 06:56:45,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5271 states, 5267 states have (on average 1.9644959179798747) internal successors, (10347), 5270 states have internal predecessors, (10347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:45,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5271 states to 5271 states and 10347 transitions. [2024-11-09 06:56:45,842 INFO L78 Accepts]: Start accepts. Automaton has 5271 states and 10347 transitions. Word has length 167 [2024-11-09 06:56:45,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:56:45,842 INFO L471 AbstractCegarLoop]: Abstraction has 5271 states and 10347 transitions. [2024-11-09 06:56:45,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 69 states have (on average 4.971014492753623) internal successors, (343), 69 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:45,843 INFO L276 IsEmpty]: Start isEmpty. Operand 5271 states and 10347 transitions. [2024-11-09 06:56:45,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-09 06:56:45,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:56:45,858 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:45,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 06:56:46,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 06:56:46,060 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 06:56:46,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:46,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1079688870, now seen corresponding path program 2 times [2024-11-09 06:56:46,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:56:46,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348452517] [2024-11-09 06:56:46,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:46,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:51,772 INFO L134 CoverageAnalysis]: Checked inductivity of 4836 backedges. 0 proven. 4836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:51,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:56:51,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348452517] [2024-11-09 06:56:51,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348452517] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:51,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432310465] [2024-11-09 06:56:51,773 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:56:51,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:51,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:56:51,775 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:56:51,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_639df9cc-21f6-46c4-8015-aa349f8b9ed6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 06:56:52,464 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2024-11-09 06:56:52,464 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:56:52,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 97 conjuncts are in the unsatisfiable core [2024-11-09 06:56:52,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:53,066 INFO L134 CoverageAnalysis]: Checked inductivity of 4836 backedges. 0 proven. 4836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:53,067 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:57,625 INFO L134 CoverageAnalysis]: Checked inductivity of 4836 backedges. 0 proven. 4836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:57,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432310465] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:56:57,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1547289960] [2024-11-09 06:56:57,627 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 06:56:57,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:56:57,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 132 [2024-11-09 06:56:57,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457279163] [2024-11-09 06:56:57,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:56:57,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 134 states [2024-11-09 06:56:57,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:56:57,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2024-11-09 06:56:57,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4556, Invalid=13266, Unknown=0, NotChecked=0, Total=17822 [2024-11-09 06:56:57,636 INFO L87 Difference]: Start difference. First operand 5271 states and 10347 transitions. Second operand has 134 states, 133 states have (on average 4.984962406015038) internal successors, (663), 133 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)