./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_sync.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_sync.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 459cf049271151c452003a0973bcdcc76c918d5759d842702be03de8528f67ef --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:21:54,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:21:54,105 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:21:54,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:21:54,114 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:21:54,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:21:54,160 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:21:54,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:21:54,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:21:54,167 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:21:54,167 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:21:54,168 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:21:54,168 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:21:54,170 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:21:54,170 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:21:54,171 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:21:54,171 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:21:54,172 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:21:54,172 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:21:54,173 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:21:54,173 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:21:54,174 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:21:54,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:21:54,175 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:21:54,175 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:21:54,176 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:21:54,176 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:21:54,176 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:21:54,177 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:21:54,177 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:21:54,179 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:21:54,179 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:21:54,179 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:21:54,179 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:21:54,180 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:21:54,180 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:21:54,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:21:54,180 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:21:54,180 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:21:54,181 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:21:54,181 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:21:54,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:21:54,184 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:21:54,184 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:21:54,184 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:21:54,185 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_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 459cf049271151c452003a0973bcdcc76c918d5759d842702be03de8528f67ef [2023-11-19 05:21:54,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:21:54,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:21:54,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:21:54,469 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:21:54,470 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:21:54,472 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/seq-pthread/cs_sync.i [2023-11-19 05:21:57,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:21:58,035 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:21:58,035 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/sv-benchmarks/c/seq-pthread/cs_sync.i [2023-11-19 05:21:58,072 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/data/069d52ca8/386341e6ca4849638725a05be8bcf53b/FLAG5a9a6936a [2023-11-19 05:21:58,090 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/data/069d52ca8/386341e6ca4849638725a05be8bcf53b [2023-11-19 05:21:58,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:21:58,097 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:21:58,102 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:21:58,103 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:21:58,108 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:21:58,109 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:21:58" (1/1) ... [2023-11-19 05:21:58,110 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d2792c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:58, skipping insertion in model container [2023-11-19 05:21:58,110 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:21:58" (1/1) ... [2023-11-19 05:21:58,188 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:21:58,676 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/sv-benchmarks/c/seq-pthread/cs_sync.i[34698,34711] [2023-11-19 05:21:58,817 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:21:58,842 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:21:58,900 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/sv-benchmarks/c/seq-pthread/cs_sync.i[34698,34711] [2023-11-19 05:21:58,970 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:21:59,079 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:21:59,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59 WrapperNode [2023-11-19 05:21:59,079 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:21:59,081 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:21:59,081 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:21:59,082 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:21:59,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:21:59,160 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:21:59,219 INFO L138 Inliner]: procedures = 245, calls = 244, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 551 [2023-11-19 05:21:59,220 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:21:59,220 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:21:59,221 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:21:59,221 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:21:59,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:21:59,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:21:59,238 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:21:59,238 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:21:59,268 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:21:59,274 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:21:59,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:21:59,283 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:21:59,292 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:21:59,293 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:21:59,293 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:21:59,293 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:21:59,294 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:21:59,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:21:59,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:21:59,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:21:59,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:21:59,409 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:21:59,409 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:21:59,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:21:59,409 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_signal [2023-11-19 05:21:59,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_signal [2023-11-19 05:21:59,410 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2023-11-19 05:21:59,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2023-11-19 05:21:59,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:21:59,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:21:59,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:21:59,413 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2023-11-19 05:21:59,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2023-11-19 05:21:59,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:21:59,413 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_init [2023-11-19 05:21:59,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_init [2023-11-19 05:21:59,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:21:59,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:21:59,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:21:59,414 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-19 05:21:59,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-19 05:21:59,416 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_wait [2023-11-19 05:21:59,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_wait [2023-11-19 05:21:59,416 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-11-19 05:21:59,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-11-19 05:21:59,417 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-19 05:21:59,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-19 05:21:59,418 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-19 05:21:59,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-19 05:21:59,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:21:59,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:21:59,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:21:59,637 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:21:59,639 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:22:00,060 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-19 05:22:00,061 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2023-11-19 05:22:00,061 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-19 05:22:00,061 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2023-11-19 05:22:00,061 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L991: SUMMARY for call __CS_cs(); srcloc: null [2023-11-19 05:22:00,061 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L991-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2023-11-19 05:22:00,062 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L991-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-19 05:22:02,553 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:22:02,743 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:22:02,743 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-19 05:22:02,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:22:02 BoogieIcfgContainer [2023-11-19 05:22:02,758 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:22:02,762 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:22:02,762 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:22:02,765 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:22:02,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:21:58" (1/3) ... [2023-11-19 05:22:02,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216ddd36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:22:02, skipping insertion in model container [2023-11-19 05:22:02,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (2/3) ... [2023-11-19 05:22:02,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216ddd36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:22:02, skipping insertion in model container [2023-11-19 05:22:02,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:22:02" (3/3) ... [2023-11-19 05:22:02,769 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_sync.i [2023-11-19 05:22:02,790 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:22:02,790 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:22:02,852 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:22:02,860 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5cd22bff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:22:02,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:22:02,865 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 93 states have (on average 1.4193548387096775) internal successors, (132), 94 states have internal predecessors, (132), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-19 05:22:02,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 05:22:02,897 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:02,898 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:22:02,899 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:22:02,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:02,904 INFO L85 PathProgramCache]: Analyzing trace with hash 643413204, now seen corresponding path program 1 times [2023-11-19 05:22:02,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:02,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122662566] [2023-11-19 05:22:02,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:02,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:03,611 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-19 05:22:03,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:03,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122662566] [2023-11-19 05:22:03,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122662566] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:03,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:03,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:22:03,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250017743] [2023-11-19 05:22:03,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:03,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:22:03,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:03,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:22:03,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:22:03,672 INFO L87 Difference]: Start difference. First operand has 160 states, 93 states have (on average 1.4193548387096775) internal successors, (132), 94 states have internal predecessors, (132), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 05:22:05,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:06,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:22:06,142 INFO L93 Difference]: Finished difference Result 319 states and 486 transitions. [2023-11-19 05:22:06,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:22:06,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 50 [2023-11-19 05:22:06,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:22:06,162 INFO L225 Difference]: With dead ends: 319 [2023-11-19 05:22:06,162 INFO L226 Difference]: Without dead ends: 160 [2023-11-19 05:22:06,173 INFO L412 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 [2023-11-19 05:22:06,178 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 2 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-19 05:22:06,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 428 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2023-11-19 05:22:06,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-19 05:22:06,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 159. [2023-11-19 05:22:06,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 93 states have (on average 1.3763440860215055) internal successors, (128), 93 states have internal predecessors, (128), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-19 05:22:06,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 238 transitions. [2023-11-19 05:22:06,278 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 238 transitions. Word has length 50 [2023-11-19 05:22:06,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:22:06,279 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 238 transitions. [2023-11-19 05:22:06,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 05:22:06,279 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 238 transitions. [2023-11-19 05:22:06,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-19 05:22:06,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:06,284 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:22:06,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:22:06,284 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:22:06,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:06,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1885798493, now seen corresponding path program 1 times [2023-11-19 05:22:06,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:06,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684139519] [2023-11-19 05:22:06,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:06,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:06,674 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-19 05:22:06,675 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:06,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684139519] [2023-11-19 05:22:06,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684139519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:06,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:06,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:22:06,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211236029] [2023-11-19 05:22:06,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:06,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:22:06,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:06,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:22:06,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:22:06,683 INFO L87 Difference]: Start difference. First operand 159 states and 238 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 05:22:08,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:10,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:10,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:22:10,875 INFO L93 Difference]: Finished difference Result 317 states and 476 transitions. [2023-11-19 05:22:10,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:22:10,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 52 [2023-11-19 05:22:10,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:22:10,879 INFO L225 Difference]: With dead ends: 317 [2023-11-19 05:22:10,879 INFO L226 Difference]: Without dead ends: 160 [2023-11-19 05:22:10,880 INFO L412 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 [2023-11-19 05:22:10,882 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 0 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:22:10,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 427 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2023-11-19 05:22:10,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-19 05:22:10,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2023-11-19 05:22:10,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 94 states have (on average 1.372340425531915) internal successors, (129), 94 states have internal predecessors, (129), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-19 05:22:10,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 239 transitions. [2023-11-19 05:22:10,906 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 239 transitions. Word has length 52 [2023-11-19 05:22:10,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:22:10,906 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 239 transitions. [2023-11-19 05:22:10,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 05:22:10,907 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 239 transitions. [2023-11-19 05:22:10,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 05:22:10,910 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:10,911 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:22:10,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:22:10,911 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:22:10,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:10,912 INFO L85 PathProgramCache]: Analyzing trace with hash -2015971326, now seen corresponding path program 1 times [2023-11-19 05:22:10,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:10,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529630896] [2023-11-19 05:22:10,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:10,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:11,196 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-19 05:22:11,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:11,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529630896] [2023-11-19 05:22:11,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529630896] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:22:11,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454320084] [2023-11-19 05:22:11,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:11,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:22:11,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:22:11,207 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:22:11,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:22:11,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:11,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:22:11,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:22:11,669 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-19 05:22:11,669 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:22:11,719 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-19 05:22:11,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454320084] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:22:11,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1420138140] [2023-11-19 05:22:11,740 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2023-11-19 05:22:11,740 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:22:11,744 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:22:11,749 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:22:11,750 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:22:36,857 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 05:22:41,740 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (+ 3 |c_~#__CS_thread_status~0.offset|)) (.cse5 (+ |c_~#m~0.offset| 1)) (.cse1 (+ 5 |c_~#__CS_thread_status~0.offset|)) (.cse6 (+ |c_~#full~0.offset| 1)) (.cse17 (+ |c_~#empty~0.offset| 1)) (.cse3 (+ |c_~#__CS_thread_status~0.offset| 4)) (.cse8 (+ |c_~#num~0.offset| 4)) (.cse10 (+ |c_~#__CS_thread_lockedon~0.offset| 20)) (.cse11 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 20)) (.cse13 (+ |c_~#__CS_thread_lockedon~0.offset| 16)) (.cse14 (+ 16 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset|)) (.cse15 (+ |c_~#__CS_thread_lockedon~0.offset| 12)) (.cse16 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 12))) (and (exists ((v_~__CS_thread~0.base_40 (Array Int Int))) (= c_~__CS_thread~0.base (store v_~__CS_thread~0.base_40 0 |#funAddr~main_thread.base|))) (exists ((|v_#memory_$Pointer$.base_152| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_151| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_150| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_280| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_158| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_157| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_156| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_155| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_154| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_153| (Array Int (Array Int Int)))) (let ((.cse0 (select |v_#memory_$Pointer$.base_153| |c_~#__CS_thread_status~0.base|)) (.cse2 (select |v_#memory_$Pointer$.base_157| |c_~#__CS_thread_status~0.base|))) (and (= (store |v_#memory_$Pointer$.base_150| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.base_150| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.base| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|))) |c_#memory_$Pointer$.base|) (= (store |v_#memory_$Pointer$.base_153| |c_~#__CS_thread_status~0.base| (store .cse0 .cse1 (select (select |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_status~0.base|) .cse1))) |v_#memory_$Pointer$.base_152|) (= (store |v_#memory_$Pointer$.base_158| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.base_158| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.base_151| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|))) |v_#memory_$Pointer$.base_151|) (= (store |v_#memory_$Pointer$.base_157| |c_~#__CS_thread_status~0.base| (store .cse2 .cse3 (select .cse0 .cse3))) |v_#memory_$Pointer$.base_153|) (= (store |v_#memory_$Pointer$.base_280| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_280| |c_~#__CS_thread_status~0.base|) .cse4 (select .cse2 .cse4))) |v_#memory_$Pointer$.base_157|) (= |v_#memory_$Pointer$.base_154| (store |v_#memory_$Pointer$.base_155| |c_~#m~0.base| (store (select |v_#memory_$Pointer$.base_155| |c_~#m~0.base|) .cse5 (select (select |v_#memory_$Pointer$.base_154| |c_~#m~0.base|) .cse5)))) (= |v_#memory_$Pointer$.base_150| (store |v_#memory_$Pointer$.base_151| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_151| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.base_150| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|)))) (= (store |v_#memory_$Pointer$.base_156| |c_~#full~0.base| (store (select |v_#memory_$Pointer$.base_156| |c_~#full~0.base|) .cse6 (select (select |v_#memory_$Pointer$.base_158| |c_~#full~0.base|) .cse6))) |v_#memory_$Pointer$.base_158|) (= (let ((.cse7 (store |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_lockedon~0.base| (let ((.cse9 (let ((.cse12 (store (select |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_lockedon~0.base|) .cse15 (select (select |v_#memory_$Pointer$.base_152| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse16)))) (store .cse12 .cse13 (select (select (store |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_lockedon~0.base| .cse12) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse14))))) (store .cse9 .cse10 (select (select (store |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_lockedon~0.base| .cse9) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse11)))))) (store .cse7 |c_~#num~0.base| (store (select .cse7 |c_~#num~0.base|) .cse8 (select (select |v_#memory_$Pointer$.base_155| |c_~#num~0.base|) .cse8)))) |v_#memory_$Pointer$.base_155|) (= (store |v_#memory_$Pointer$.base_154| |c_~#empty~0.base| (store (select |v_#memory_$Pointer$.base_154| |c_~#empty~0.base|) .cse17 (select (select |v_#memory_$Pointer$.base_156| |c_~#empty~0.base|) .cse17))) |v_#memory_$Pointer$.base_156|)))) (<= 3 |c_ULTIMATE.start_main_~j~2#1|) (= (select (select |c_#memory_int| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|) |c_ULTIMATE.start_main_#t~mem94#1|) (<= 2 |c_ULTIMATE.start_main_~i~0#1|) (exists ((|v_#memory_int_218| (Array Int (Array Int Int))) (|v_#memory_int_137| (Array Int (Array Int Int))) (|v_#memory_int_138| (Array Int (Array Int Int))) (|v_#memory_int_139| (Array Int (Array Int Int)))) (let ((.cse19 (select |v_#memory_int_138| |c_~#__CS_thread_lockedon~0.base|)) (.cse22 (select |v_#memory_int_137| |c_~#__CS_thread_lockedon~0.base|))) (and (= |v_#memory_int_138| (let ((.cse18 (store |v_#memory_int_218| |c_~#__CS_thread_status~0.base| (let ((.cse20 (let ((.cse21 (store (select |v_#memory_int_218| |c_~#__CS_thread_status~0.base|) .cse4 (select (select |v_#memory_int_218| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 3))))) (store .cse21 .cse3 (select (select (store |v_#memory_int_218| |c_~#__CS_thread_status~0.base| .cse21) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 4)))))) (store .cse20 .cse1 (select (select (store |v_#memory_int_218| |c_~#__CS_thread_status~0.base| .cse20) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 5))))))) (store .cse18 |c_~#__CS_thread_lockedon~0.base| (store (select .cse18 |c_~#__CS_thread_lockedon~0.base|) .cse15 (select .cse19 .cse15))))) (= (store |v_#memory_int_137| |c_~#__CS_thread_lockedon~0.base| (store .cse22 .cse10 (select (select |v_#memory_int_139| |c_~#__CS_thread_lockedon~0.base|) .cse10))) |v_#memory_int_139|) (= |c_#memory_int| (let ((.cse23 (let ((.cse24 (let ((.cse25 (let ((.cse26 (let ((.cse27 (let ((.cse28 (store |v_#memory_int_139| |c_~#num~0.base| (store (select |v_#memory_int_139| |c_~#num~0.base|) .cse8 (select (select |v_#memory_int_139| |c_ULTIMATE.start_main_~#__CS_cp_num~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_num~0#1.offset| 4)))))) (store .cse28 |c_~#m~0.base| (store (select .cse28 |c_~#m~0.base|) .cse5 (select (select .cse28 |c_ULTIMATE.start_main_~#__CS_cp_m~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_m~0#1.offset| 1))))))) (store .cse27 |c_~#empty~0.base| (store (select .cse27 |c_~#empty~0.base|) .cse17 (select (select .cse27 |c_ULTIMATE.start_main_~#__CS_cp_empty~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_empty~0#1.offset| 1))))))) (store .cse26 |c_~#full~0.base| (store (select .cse26 |c_~#full~0.base|) .cse6 (select (select .cse26 |c_ULTIMATE.start_main_~#__CS_cp_full~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_full~0#1.offset| 1))))))) (store .cse25 |c_~#__CS_thread_born_round~0.base| (store (select .cse25 |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| 0))))) (store .cse24 |c_~#__CS_thread_status~0.base| (store (select .cse24 |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| c_~__THREAD_RUNNING~0))))) (store .cse23 |c_~#__CS_thread_allocated~0.base| (store (select .cse23 |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| 1)))) (= (store |v_#memory_int_138| |c_~#__CS_thread_lockedon~0.base| (store .cse19 .cse13 (select .cse22 .cse13))) |v_#memory_int_137|)))) (exists ((|v_#memory_$Pointer$.offset_280| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_150| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_151| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_152| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_153| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_154| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_155| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_156| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_157| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_158| (Array Int (Array Int Int)))) (let ((.cse29 (select |v_#memory_$Pointer$.offset_150| |c_~#__CS_thread_status~0.base|)) (.cse30 (select |v_#memory_$Pointer$.offset_156| |c_~#__CS_thread_status~0.base|))) (and (= |v_#memory_$Pointer$.offset_158| (store |v_#memory_$Pointer$.offset_151| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.offset_151| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.offset_158| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|)))) (= |v_#memory_$Pointer$.offset_150| (store |v_#memory_$Pointer$.offset_280| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_280| |c_~#__CS_thread_status~0.base|) .cse4 (select .cse29 .cse4)))) (= (store |v_#memory_$Pointer$.offset_154| |c_~#m~0.base| (store (select |v_#memory_$Pointer$.offset_154| |c_~#m~0.base|) .cse5 (select (select |v_#memory_$Pointer$.offset_153| |c_~#m~0.base|) .cse5))) |v_#memory_$Pointer$.offset_153|) (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_157| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.offset_157| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.offset| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|)))) (= (store |v_#memory_$Pointer$.offset_158| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_158| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.offset_157| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|))) |v_#memory_$Pointer$.offset_157|) (= |v_#memory_$Pointer$.offset_155| (store |v_#memory_$Pointer$.offset_156| |c_~#__CS_thread_status~0.base| (store .cse30 .cse1 (select (select |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_status~0.base|) .cse1)))) (= |v_#memory_$Pointer$.offset_151| (store |v_#memory_$Pointer$.offset_152| |c_~#full~0.base| (store (select |v_#memory_$Pointer$.offset_152| |c_~#full~0.base|) .cse6 (select (select |v_#memory_$Pointer$.offset_151| |c_~#full~0.base|) .cse6)))) (= (store |v_#memory_$Pointer$.offset_153| |c_~#empty~0.base| (store (select |v_#memory_$Pointer$.offset_153| |c_~#empty~0.base|) .cse17 (select (select |v_#memory_$Pointer$.offset_152| |c_~#empty~0.base|) .cse17))) |v_#memory_$Pointer$.offset_152|) (= |v_#memory_$Pointer$.offset_156| (store |v_#memory_$Pointer$.offset_150| |c_~#__CS_thread_status~0.base| (store .cse29 .cse3 (select .cse30 .cse3)))) (= |v_#memory_$Pointer$.offset_154| (let ((.cse31 (store |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_lockedon~0.base| (let ((.cse32 (let ((.cse33 (store (select |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_lockedon~0.base|) .cse15 (select (select |v_#memory_$Pointer$.offset_155| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse16)))) (store .cse33 .cse13 (select (select (store |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_lockedon~0.base| .cse33) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse14))))) (store .cse32 .cse10 (select (select (store |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_lockedon~0.base| .cse32) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse11)))))) (store .cse31 |c_~#num~0.base| (store (select .cse31 |c_~#num~0.base|) .cse8 (select (select |v_#memory_$Pointer$.offset_154| |c_~#num~0.base|) .cse8)))))))) (exists ((v_~__CS_thread~0.offset_40 (Array Int Int))) (= (store v_~__CS_thread~0.offset_40 0 |#funAddr~main_thread.offset|) c_~__CS_thread~0.offset)) (= c_~__CS_round~0 0) (= c_~__CS_thread_index~0 0))) is different from false [2023-11-19 05:22:41,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1420138140] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:41,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-19 05:22:41,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 4] total 8 [2023-11-19 05:22:41,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258336918] [2023-11-19 05:22:41,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:41,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:22:41,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:41,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:22:41,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=26, Unknown=1, NotChecked=10, Total=56 [2023-11-19 05:22:41,752 INFO L87 Difference]: Start difference. First operand 160 states and 239 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 05:22:43,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-19 05:22:45,881 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse22 (+ 3 |c_~#__CS_thread_status~0.offset|)) (.cse23 (+ |c_~#m~0.offset| 1)) (.cse19 (+ 5 |c_~#__CS_thread_status~0.offset|)) (.cse24 (+ |c_~#full~0.offset| 1)) (.cse35 (+ |c_~#empty~0.offset| 1)) (.cse21 (+ |c_~#__CS_thread_status~0.offset| 4)) (.cse26 (+ |c_~#num~0.offset| 4)) (.cse28 (+ |c_~#__CS_thread_lockedon~0.offset| 20)) (.cse29 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 20)) (.cse31 (+ |c_~#__CS_thread_lockedon~0.offset| 16)) (.cse32 (+ 16 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset|)) (.cse33 (+ |c_~#__CS_thread_lockedon~0.offset| 12)) (.cse34 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 12)) (.cse16 (= c_~__CS_round~0 0)) (.cse17 (= c_~__CS_thread_index~0 0))) (and (or (< 2 |c_ULTIMATE.start_main_~j~2#1|) (let ((.cse2 (select |c_#memory_int| 9)) (.cse12 (select |c_#memory_int| 4)) (.cse13 (select |c_#memory_int| 7)) (.cse15 (select |c_#memory_int| 1)) (.cse11 (select |c_#memory_int| 3)) (.cse3 (select |c_#memory_int| 10)) (.cse14 (select |c_#memory_$Pointer$.base| 6)) (.cse1 (select |c_#memory_int| 5)) (.cse10 (select |c_#memory_$Pointer$.offset| 6)) (.cse4 (+ |c_#StackHeapBarrier| 1)) (.cse0 (select |c_#memory_int| 8))) (and (= |c_~#m~0.offset| 0) (exists ((|v_ULTIMATE.start_ULTIMATE.init_#t~nondet130#1_7| Int) (v_~__CS_u~0.full_8 (Array Int Int))) (= (store (store v_~__CS_u~0.full_8 0 |v_ULTIMATE.start_ULTIMATE.init_#t~nondet130#1_7|) 1 (select c_~__CS_u~0.full 1)) c_~__CS_u~0.full)) (= (select .cse0 1) 0) (exists ((v_~__CS_thread~0.base_39 (Array Int Int))) (= (store (store (store v_~__CS_thread~0.base_39 0 0) 1 0) 2 0) c_~__CS_thread~0.base)) (= (select .cse1 2) 0) (= (select .cse1 5) 0) (= (select .cse2 1) 0) (= 2 c_~__THREAD_FINISHED~0) (= |c_ULTIMATE.start_main_~#__CS_cp_num~0#1.offset| 0) (= |c_~#__CS_thread_born_round~0.offset| 0) (= |c_ULTIMATE.start_main_~#__CS_cp_full~0#1.offset| 0) (= |c_~#full~0.base| 10) (= c_~__CS_ret_FINISHED~0 4) (= 5 |c_~#__CS_thread_status~0.base|) (= (select .cse3 1) 0) (= 6 |c_~#__CS_thread_lockedon~0.base|) (= |c_~#empty~0.offset| 0) (exists ((|v_#length_22| (Array Int Int))) (and (= 10 (select |v_#length_22| 2)) (= (select |v_#length_22| 3) 3) (= (select |v_#length_22| 5) 6) (= (select |v_#length_22| 1) 2) (= 2 (select |v_#length_22| 9)) (= 3 (select |v_#length_22| 4)) (= (store (store (store (store (store (store |v_#length_22| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| 6) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| 24) |c_ULTIMATE.start_main_~#__CS_cp_num~0#1.base| 8) |c_ULTIMATE.start_main_~#__CS_cp_m~0#1.base| 2) |c_ULTIMATE.start_main_~#__CS_cp_empty~0#1.base| 2) |c_ULTIMATE.start_main_~#__CS_cp_full~0#1.base| 2) |c_#length|) (= 2 (select |v_#length_22| 10)) (= 8 (select |v_#length_22| 7)) (= (select |v_#length_22| 6) 24) (= 2 (select |v_#length_22| 8)))) (<= .cse4 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (= 2 c_~__CS_ret_ERROR~0) (exists ((|v_#valid_89| (Array Int Int))) (let ((.cse6 (store |v_#valid_89| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| 1))) (let ((.cse7 (store .cse6 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| 1))) (let ((.cse9 (store .cse7 |c_ULTIMATE.start_main_~#__CS_cp_num~0#1.base| 1))) (let ((.cse8 (store .cse9 |c_ULTIMATE.start_main_~#__CS_cp_m~0#1.base| 1))) (let ((.cse5 (store .cse8 |c_ULTIMATE.start_main_~#__CS_cp_empty~0#1.base| 1))) (and (= (select |v_#valid_89| 2) 1) (= (select |v_#valid_89| 1) 1) (= (select |v_#valid_89| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) 0) (= |c_#valid| (store .cse5 |c_ULTIMATE.start_main_~#__CS_cp_full~0#1.base| 1)) (= (select .cse6 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) 0) (= (select |v_#valid_89| 7) 1) (= (select |v_#valid_89| 0) 0) (= (select |v_#valid_89| 3) 1) (= 1 (select |v_#valid_89| 10)) (= (select |v_#valid_89| 8) 1) (= (select .cse7 |c_ULTIMATE.start_main_~#__CS_cp_num~0#1.base|) 0) (= (select |v_#valid_89| 6) 1) (= (select |v_#valid_89| 5) 1) (= (select .cse8 |c_ULTIMATE.start_main_~#__CS_cp_empty~0#1.base|) 0) (= (select .cse9 |c_ULTIMATE.start_main_~#__CS_cp_m~0#1.base|) 0) (= (select |v_#valid_89| 4) 1) (= (select |v_#valid_89| 9) 1) (= (select .cse5 |c_ULTIMATE.start_main_~#__CS_cp_full~0#1.base|) 0)))))))) (= (select .cse2 0) 0) (= 0 (select .cse10 16)) (= (select .cse11 0) 0) (= (select .cse12 0) 0) (<= .cse4 |c_ULTIMATE.start_main_~#__CS_cp_m~0#1.base|) (= c_~__CS_ret~0 0) (<= 1 |c_#StackHeapBarrier|) (= (select .cse13 0) 0) (= |c_ULTIMATE.start_main_~i~0#1| 0) (= (select .cse14 12) 0) (= |c_ULTIMATE.start_main_~#__CS_cp_m~0#1.offset| 0) (= |c_~#__CS_thread_born_round~0.base| 4) (= |c_~#num~0.offset| 0) (= (select .cse11 1) 0) (<= .cse4 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) (exists ((v_~__CS_u~0.num_8 (Array Int Int))) (= c_~__CS_u~0.num (store (store v_~__CS_u~0.num_8 0 0) 1 0))) (= (select .cse1 4) 0) (exists ((v_~__CS_u~0.m_8 (Array Int Int)) (|v_ULTIMATE.start_ULTIMATE.init_#t~nondet126#1_7| Int)) (= c_~__CS_u~0.m (store (store v_~__CS_u~0.m_8 0 |v_ULTIMATE.start_ULTIMATE.init_#t~nondet126#1_7|) 1 (select c_~__CS_u~0.m 1)))) (= 3 |c_~#__CS_thread_allocated~0.base|) (= (select .cse15 1) 0) (= |c_ULTIMATE.start_main_~#__CS_cp_empty~0#1.offset| 0) (<= .cse4 |c_ULTIMATE.start_main_~#__CS_cp_empty~0#1.base|) (= (select .cse14 0) 0) (= (select .cse1 3) 0) (= (select .cse14 4) 0) (= (select .cse12 1) 0) (= c_~__CS_error~0 0) (= c_~__THREAD_UNUSED~0 0) (= (select .cse10 12) 0) (= (select .cse12 2) 0) (= (select .cse13 4) 0) (= (select .cse10 4) 0) (= (select .cse1 0) 0) (= |c_~#full~0.offset| 0) (= |c_~#empty~0.base| 9) (<= .cse4 |c_ULTIMATE.start_main_~#__CS_cp_full~0#1.base|) (= (select .cse10 20) 0) (= (select .cse14 16) 0) (= 1 c_~__THREAD_RUNNING~0) (= |c_~#__CS_thread_status~0.offset| 0) (= 48 (select .cse15 0)) (= 0 (select .cse14 20)) (= (select .cse11 2) 0) (= (select .cse3 0) 0) (= (select .cse14 8) 0) (= (select .cse10 0) 0) (= (select .cse1 1) 0) (= (select .cse10 8) 0) (= |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 0) .cse16 .cse17 (= |c_~#__CS_thread_allocated~0.offset| 0) (exists ((v_~__CS_u~0.empty_8 (Array Int Int)) (|v_ULTIMATE.start_ULTIMATE.init_#t~nondet128#1_7| Int)) (= (store (store v_~__CS_u~0.empty_8 0 |v_ULTIMATE.start_ULTIMATE.init_#t~nondet128#1_7|) 1 (select c_~__CS_u~0.empty 1)) c_~__CS_u~0.empty)) (<= .cse4 |c_ULTIMATE.start_main_~#__CS_cp_num~0#1.base|) (= 7 |c_~#num~0.base|) (= |c_~#m~0.base| 8) (= c_~__CS_ret_PREEMPTED~0 1) (exists ((v_~__CS_thread~0.offset_39 (Array Int Int))) (= (store (store (store v_~__CS_thread~0.offset_39 0 0) 1 0) 2 0) c_~__CS_thread~0.offset)) (= |c_~#__CS_thread_lockedon~0.offset| 0) (= (select .cse0 0) 0) (= |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 0)))) (exists ((v_~__CS_thread~0.base_40 (Array Int Int))) (= c_~__CS_thread~0.base (store v_~__CS_thread~0.base_40 0 |#funAddr~main_thread.base|))) (exists ((|v_#memory_$Pointer$.base_152| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_151| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_150| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_280| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_158| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_157| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_156| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_155| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_154| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_153| (Array Int (Array Int Int)))) (let ((.cse18 (select |v_#memory_$Pointer$.base_153| |c_~#__CS_thread_status~0.base|)) (.cse20 (select |v_#memory_$Pointer$.base_157| |c_~#__CS_thread_status~0.base|))) (and (= (store |v_#memory_$Pointer$.base_150| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.base_150| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.base| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|))) |c_#memory_$Pointer$.base|) (= (store |v_#memory_$Pointer$.base_153| |c_~#__CS_thread_status~0.base| (store .cse18 .cse19 (select (select |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_status~0.base|) .cse19))) |v_#memory_$Pointer$.base_152|) (= (store |v_#memory_$Pointer$.base_158| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.base_158| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.base_151| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|))) |v_#memory_$Pointer$.base_151|) (= (store |v_#memory_$Pointer$.base_157| |c_~#__CS_thread_status~0.base| (store .cse20 .cse21 (select .cse18 .cse21))) |v_#memory_$Pointer$.base_153|) (= (store |v_#memory_$Pointer$.base_280| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_280| |c_~#__CS_thread_status~0.base|) .cse22 (select .cse20 .cse22))) |v_#memory_$Pointer$.base_157|) (= |v_#memory_$Pointer$.base_154| (store |v_#memory_$Pointer$.base_155| |c_~#m~0.base| (store (select |v_#memory_$Pointer$.base_155| |c_~#m~0.base|) .cse23 (select (select |v_#memory_$Pointer$.base_154| |c_~#m~0.base|) .cse23)))) (= |v_#memory_$Pointer$.base_150| (store |v_#memory_$Pointer$.base_151| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_151| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.base_150| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|)))) (= (store |v_#memory_$Pointer$.base_156| |c_~#full~0.base| (store (select |v_#memory_$Pointer$.base_156| |c_~#full~0.base|) .cse24 (select (select |v_#memory_$Pointer$.base_158| |c_~#full~0.base|) .cse24))) |v_#memory_$Pointer$.base_158|) (= (let ((.cse25 (store |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_lockedon~0.base| (let ((.cse27 (let ((.cse30 (store (select |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_lockedon~0.base|) .cse33 (select (select |v_#memory_$Pointer$.base_152| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse34)))) (store .cse30 .cse31 (select (select (store |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_lockedon~0.base| .cse30) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse32))))) (store .cse27 .cse28 (select (select (store |v_#memory_$Pointer$.base_152| |c_~#__CS_thread_lockedon~0.base| .cse27) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse29)))))) (store .cse25 |c_~#num~0.base| (store (select .cse25 |c_~#num~0.base|) .cse26 (select (select |v_#memory_$Pointer$.base_155| |c_~#num~0.base|) .cse26)))) |v_#memory_$Pointer$.base_155|) (= (store |v_#memory_$Pointer$.base_154| |c_~#empty~0.base| (store (select |v_#memory_$Pointer$.base_154| |c_~#empty~0.base|) .cse35 (select (select |v_#memory_$Pointer$.base_156| |c_~#empty~0.base|) .cse35))) |v_#memory_$Pointer$.base_156|)))) (<= 3 |c_ULTIMATE.start_main_~j~2#1|) (= (select (select |c_#memory_int| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|) |c_ULTIMATE.start_main_#t~mem94#1|) (<= 2 |c_ULTIMATE.start_main_~i~0#1|) (exists ((|v_#memory_int_218| (Array Int (Array Int Int))) (|v_#memory_int_137| (Array Int (Array Int Int))) (|v_#memory_int_138| (Array Int (Array Int Int))) (|v_#memory_int_139| (Array Int (Array Int Int)))) (let ((.cse37 (select |v_#memory_int_138| |c_~#__CS_thread_lockedon~0.base|)) (.cse40 (select |v_#memory_int_137| |c_~#__CS_thread_lockedon~0.base|))) (and (= |v_#memory_int_138| (let ((.cse36 (store |v_#memory_int_218| |c_~#__CS_thread_status~0.base| (let ((.cse38 (let ((.cse39 (store (select |v_#memory_int_218| |c_~#__CS_thread_status~0.base|) .cse22 (select (select |v_#memory_int_218| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 3))))) (store .cse39 .cse21 (select (select (store |v_#memory_int_218| |c_~#__CS_thread_status~0.base| .cse39) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 4)))))) (store .cse38 .cse19 (select (select (store |v_#memory_int_218| |c_~#__CS_thread_status~0.base| .cse38) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 5))))))) (store .cse36 |c_~#__CS_thread_lockedon~0.base| (store (select .cse36 |c_~#__CS_thread_lockedon~0.base|) .cse33 (select .cse37 .cse33))))) (= (store |v_#memory_int_137| |c_~#__CS_thread_lockedon~0.base| (store .cse40 .cse28 (select (select |v_#memory_int_139| |c_~#__CS_thread_lockedon~0.base|) .cse28))) |v_#memory_int_139|) (= |c_#memory_int| (let ((.cse41 (let ((.cse42 (let ((.cse43 (let ((.cse44 (let ((.cse45 (let ((.cse46 (store |v_#memory_int_139| |c_~#num~0.base| (store (select |v_#memory_int_139| |c_~#num~0.base|) .cse26 (select (select |v_#memory_int_139| |c_ULTIMATE.start_main_~#__CS_cp_num~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_num~0#1.offset| 4)))))) (store .cse46 |c_~#m~0.base| (store (select .cse46 |c_~#m~0.base|) .cse23 (select (select .cse46 |c_ULTIMATE.start_main_~#__CS_cp_m~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_m~0#1.offset| 1))))))) (store .cse45 |c_~#empty~0.base| (store (select .cse45 |c_~#empty~0.base|) .cse35 (select (select .cse45 |c_ULTIMATE.start_main_~#__CS_cp_empty~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_empty~0#1.offset| 1))))))) (store .cse44 |c_~#full~0.base| (store (select .cse44 |c_~#full~0.base|) .cse24 (select (select .cse44 |c_ULTIMATE.start_main_~#__CS_cp_full~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_full~0#1.offset| 1))))))) (store .cse43 |c_~#__CS_thread_born_round~0.base| (store (select .cse43 |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| 0))))) (store .cse42 |c_~#__CS_thread_status~0.base| (store (select .cse42 |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| c_~__THREAD_RUNNING~0))))) (store .cse41 |c_~#__CS_thread_allocated~0.base| (store (select .cse41 |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| 1)))) (= (store |v_#memory_int_138| |c_~#__CS_thread_lockedon~0.base| (store .cse37 .cse31 (select .cse40 .cse31))) |v_#memory_int_137|)))) (exists ((|v_#memory_$Pointer$.offset_280| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_150| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_151| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_152| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_153| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_154| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_155| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_156| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_157| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_158| (Array Int (Array Int Int)))) (let ((.cse47 (select |v_#memory_$Pointer$.offset_150| |c_~#__CS_thread_status~0.base|)) (.cse48 (select |v_#memory_$Pointer$.offset_156| |c_~#__CS_thread_status~0.base|))) (and (= |v_#memory_$Pointer$.offset_158| (store |v_#memory_$Pointer$.offset_151| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.offset_151| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.offset_158| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|)))) (= |v_#memory_$Pointer$.offset_150| (store |v_#memory_$Pointer$.offset_280| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_280| |c_~#__CS_thread_status~0.base|) .cse22 (select .cse47 .cse22)))) (= (store |v_#memory_$Pointer$.offset_154| |c_~#m~0.base| (store (select |v_#memory_$Pointer$.offset_154| |c_~#m~0.base|) .cse23 (select (select |v_#memory_$Pointer$.offset_153| |c_~#m~0.base|) .cse23))) |v_#memory_$Pointer$.offset_153|) (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_157| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.offset_157| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.offset| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|)))) (= (store |v_#memory_$Pointer$.offset_158| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_158| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.offset_157| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|))) |v_#memory_$Pointer$.offset_157|) (= |v_#memory_$Pointer$.offset_155| (store |v_#memory_$Pointer$.offset_156| |c_~#__CS_thread_status~0.base| (store .cse48 .cse19 (select (select |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_status~0.base|) .cse19)))) (= |v_#memory_$Pointer$.offset_151| (store |v_#memory_$Pointer$.offset_152| |c_~#full~0.base| (store (select |v_#memory_$Pointer$.offset_152| |c_~#full~0.base|) .cse24 (select (select |v_#memory_$Pointer$.offset_151| |c_~#full~0.base|) .cse24)))) (= (store |v_#memory_$Pointer$.offset_153| |c_~#empty~0.base| (store (select |v_#memory_$Pointer$.offset_153| |c_~#empty~0.base|) .cse35 (select (select |v_#memory_$Pointer$.offset_152| |c_~#empty~0.base|) .cse35))) |v_#memory_$Pointer$.offset_152|) (= |v_#memory_$Pointer$.offset_156| (store |v_#memory_$Pointer$.offset_150| |c_~#__CS_thread_status~0.base| (store .cse47 .cse21 (select .cse48 .cse21)))) (= |v_#memory_$Pointer$.offset_154| (let ((.cse49 (store |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_lockedon~0.base| (let ((.cse50 (let ((.cse51 (store (select |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_lockedon~0.base|) .cse33 (select (select |v_#memory_$Pointer$.offset_155| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse34)))) (store .cse51 .cse31 (select (select (store |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_lockedon~0.base| .cse51) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse32))))) (store .cse50 .cse28 (select (select (store |v_#memory_$Pointer$.offset_155| |c_~#__CS_thread_lockedon~0.base| .cse50) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse29)))))) (store .cse49 |c_~#num~0.base| (store (select .cse49 |c_~#num~0.base|) .cse26 (select (select |v_#memory_$Pointer$.offset_154| |c_~#num~0.base|) .cse26)))))))) (exists ((v_~__CS_thread~0.offset_40 (Array Int Int))) (= (store v_~__CS_thread~0.offset_40 0 |#funAddr~main_thread.offset|) c_~__CS_thread~0.offset)) .cse16 .cse17)) is different from false [2023-11-19 05:22:46,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:22:46,811 INFO L93 Difference]: Finished difference Result 312 states and 466 transitions. [2023-11-19 05:22:46,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:22:46,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 53 [2023-11-19 05:22:46,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:22:46,814 INFO L225 Difference]: With dead ends: 312 [2023-11-19 05:22:46,814 INFO L226 Difference]: Without dead ends: 160 [2023-11-19 05:22:46,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 154 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=21, Invalid=27, Unknown=2, NotChecked=22, Total=72 [2023-11-19 05:22:46,817 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 0 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 67 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:22:46,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 512 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 1 Unknown, 67 Unchecked, 3.0s Time] [2023-11-19 05:22:46,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-19 05:22:46,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2023-11-19 05:22:46,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 94 states have (on average 1.3617021276595744) internal successors, (128), 94 states have internal predecessors, (128), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-19 05:22:46,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 238 transitions. [2023-11-19 05:22:46,842 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 238 transitions. Word has length 53 [2023-11-19 05:22:46,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:22:46,843 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 238 transitions. [2023-11-19 05:22:46,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 05:22:46,843 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 238 transitions. [2023-11-19 05:22:46,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-19 05:22:46,847 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:46,847 INFO L195 NwaCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:22:46,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:22:47,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:22:47,068 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:22:47,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:47,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1609565421, now seen corresponding path program 1 times [2023-11-19 05:22:47,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:47,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842974200] [2023-11-19 05:22:47,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:47,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:47,432 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-11-19 05:22:47,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:47,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842974200] [2023-11-19 05:22:47,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842974200] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:22:47,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930149310] [2023-11-19 05:22:47,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:47,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:22:47,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:22:47,444 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:22:47,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0331e1-7af1-47a7-b983-1fa0f933e155/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 05:22:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:47,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:22:47,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:22:47,848 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-11-19 05:22:47,849 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:22:47,918 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-11-19 05:22:47,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930149310] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:22:47,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [982851855] [2023-11-19 05:22:47,923 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2023-11-19 05:22:47,924 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:22:47,924 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:22:47,925 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:22:47,925 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs