./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_stateful-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_stateful-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX --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 c1d6cba599289c2637bd3d8da41e464d318a32e6ae6e6e0e391ff437e6ce1fcc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:03:06,271 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:03:06,392 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 01:03:06,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:03:06,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:03:06,451 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:03:06,452 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:03:06,452 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:03:06,453 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:03:06,461 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:03:06,461 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:03:06,463 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:03:06,463 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:03:06,465 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:03:06,465 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:03:06,466 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:03:06,466 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:03:06,467 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:03:06,468 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:03:06,468 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:03:06,470 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:03:06,471 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:03:06,472 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:03:06,473 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:03:06,473 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 01:03:06,474 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:03:06,474 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 01:03:06,475 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:03:06,475 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:03:06,476 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:03:06,477 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:03:06,477 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 01:03:06,478 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:03:06,478 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:03:06,478 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:03:06,479 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:03:06,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:03:06,479 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:03:06,480 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:03:06,480 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:03:06,480 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:03:06,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:03:06,481 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:03:06,481 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:03:06,482 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:03:06,482 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_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1d6cba599289c2637bd3d8da41e464d318a32e6ae6e6e0e391ff437e6ce1fcc [2023-11-12 01:03:06,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:03:06,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:03:06,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:03:06,826 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:03:06,826 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:03:06,829 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/seq-pthread/cs_stateful-2.i [2023-11-12 01:03:10,005 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:03:10,318 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:03:10,318 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/sv-benchmarks/c/seq-pthread/cs_stateful-2.i [2023-11-12 01:03:10,340 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/data/6e0eae235/267f77d3c059468d9162da395f7511d8/FLAGd5f8e2ad7 [2023-11-12 01:03:10,359 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/data/6e0eae235/267f77d3c059468d9162da395f7511d8 [2023-11-12 01:03:10,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:03:10,363 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:03:10,364 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:03:10,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:03:10,370 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:03:10,370 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:03:10" (1/1) ... [2023-11-12 01:03:10,372 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35da6c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:10, skipping insertion in model container [2023-11-12 01:03:10,372 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:03:10" (1/1) ... [2023-11-12 01:03:10,433 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:03:10,862 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_9b3b2790-8f09-4273-afef-3cc890c685b0/sv-benchmarks/c/seq-pthread/cs_stateful-2.i[23607,23620] [2023-11-12 01:03:10,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:03:10,990 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:03:11,046 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_9b3b2790-8f09-4273-afef-3cc890c685b0/sv-benchmarks/c/seq-pthread/cs_stateful-2.i[23607,23620] [2023-11-12 01:03:11,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:03:11,214 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:03:11,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:11 WrapperNode [2023-11-12 01:03:11,215 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:03:11,217 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:03:11,217 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:03:11,217 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:03:11,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:11" (1/1) ... [2023-11-12 01:03:11,280 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:11" (1/1) ... [2023-11-12 01:03:11,358 INFO L138 Inliner]: procedures = 145, calls = 245, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 546 [2023-11-12 01:03:11,359 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:03:11,360 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:03:11,360 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:03:11,360 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:03:11,371 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:11" (1/1) ... [2023-11-12 01:03:11,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:11" (1/1) ... [2023-11-12 01:03:11,380 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:11" (1/1) ... [2023-11-12 01:03:11,381 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:11" (1/1) ... [2023-11-12 01:03:11,408 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:11" (1/1) ... [2023-11-12 01:03:11,413 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:11" (1/1) ... [2023-11-12 01:03:11,418 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:11" (1/1) ... [2023-11-12 01:03:11,422 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:11" (1/1) ... [2023-11-12 01:03:11,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:03:11,431 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:03:11,431 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:03:11,431 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:03:11,432 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:11" (1/1) ... [2023-11-12 01:03:11,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:03:11,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:03:11,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:03:11,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:03:11,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 01:03:11,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 01:03:11,532 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 01:03:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 01:03:11,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:03:11,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 01:03:11,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 01:03:11,535 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_init [2023-11-12 01:03:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_init [2023-11-12 01:03:11,535 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2023-11-12 01:03:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2023-11-12 01:03:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-12 01:03:11,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-12 01:03:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 01:03:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-11-12 01:03:11,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-11-12 01:03:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-12 01:03:11,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-12 01:03:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 01:03:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 01:03:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-12 01:03:11,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-12 01:03:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 01:03:11,540 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2023-11-12 01:03:11,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2023-11-12 01:03:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:03:11,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:03:11,760 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:03:11,764 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:03:12,356 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L750: SUMMARY for call __CS_cs(); srcloc: null [2023-11-12 01:03:12,357 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L750-1: 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; [2023-11-12 01:03:12,357 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L750-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-12 01:03:12,357 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-12 01:03:12,358 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: 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; [2023-11-12 01:03:12,358 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-12 01:03:12,359 INFO L770 $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);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; [2023-11-12 01:03:13,721 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:03:13,859 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:03:13,860 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 01:03:13,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:03:13 BoogieIcfgContainer [2023-11-12 01:03:13,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:03:13,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:03:13,867 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:03:13,870 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:03:13,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:03:10" (1/3) ... [2023-11-12 01:03:13,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ee2848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:03:13, skipping insertion in model container [2023-11-12 01:03:13,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:03:11" (2/3) ... [2023-11-12 01:03:13,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ee2848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:03:13, skipping insertion in model container [2023-11-12 01:03:13,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:03:13" (3/3) ... [2023-11-12 01:03:13,874 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_stateful-2.i [2023-11-12 01:03:13,892 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:03:13,892 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 01:03:13,965 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:03:13,973 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;@551bab5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:03:13,974 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 01:03:13,978 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 85 states have (on average 1.4) internal successors, (119), 86 states have internal predecessors, (119), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-12 01:03:14,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 01:03:14,006 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:03:14,006 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] [2023-11-12 01:03:14,007 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:03:14,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:03:14,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1514583353, now seen corresponding path program 1 times [2023-11-12 01:03:14,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:03:14,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725382130] [2023-11-12 01:03:14,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:14,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:03:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:14,743 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-12 01:03:14,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:03:14,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725382130] [2023-11-12 01:03:14,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725382130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:03:14,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:03:14,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 01:03:14,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698229862] [2023-11-12 01:03:14,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:03:14,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:03:14,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:03:14,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:03:14,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:03:14,799 INFO L87 Difference]: Start difference. First operand has 149 states, 85 states have (on average 1.4) internal successors, (119), 86 states have internal predecessors, (119), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) 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) [2023-11-12 01:03:16,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 01:03:18,660 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 [] [2023-11-12 01:03:18,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:03:18,877 INFO L93 Difference]: Finished difference Result 297 states and 453 transitions. [2023-11-12 01:03:18,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:03:18,881 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 [2023-11-12 01:03:18,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:03:18,899 INFO L225 Difference]: With dead ends: 297 [2023-11-12 01:03:18,899 INFO L226 Difference]: Without dead ends: 149 [2023-11-12 01:03:18,910 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 [2023-11-12 01:03:18,914 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 2 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-12 01:03:18,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 408 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2023-11-12 01:03:18,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-11-12 01:03:18,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 148. [2023-11-12 01:03:18,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 85 states have (on average 1.3764705882352941) internal successors, (117), 85 states have internal predecessors, (117), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-12 01:03:18,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 225 transitions. [2023-11-12 01:03:18,989 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 225 transitions. Word has length 50 [2023-11-12 01:03:18,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:03:18,990 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 225 transitions. [2023-11-12 01:03:18,990 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) [2023-11-12 01:03:18,990 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 225 transitions. [2023-11-12 01:03:18,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-12 01:03:18,996 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:03:18,996 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] [2023-11-12 01:03:18,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 01:03:18,997 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:03:18,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:03:18,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1710002423, now seen corresponding path program 1 times [2023-11-12 01:03:18,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:03:18,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232997000] [2023-11-12 01:03:18,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:18,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:03:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:19,314 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-12 01:03:19,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:03:19,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232997000] [2023-11-12 01:03:19,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232997000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:03:19,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:03:19,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 01:03:19,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033517125] [2023-11-12 01:03:19,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:03:19,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:03:19,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:03:19,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:03:19,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:03:19,319 INFO L87 Difference]: Start difference. First operand 148 states and 225 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) [2023-11-12 01:03:21,983 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 [] [2023-11-12 01:03:22,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:03:22,106 INFO L93 Difference]: Finished difference Result 295 states and 450 transitions. [2023-11-12 01:03:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:03:22,106 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 [2023-11-12 01:03:22,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:03:22,109 INFO L225 Difference]: With dead ends: 295 [2023-11-12 01:03:22,109 INFO L226 Difference]: Without dead ends: 149 [2023-11-12 01:03:22,110 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 [2023-11-12 01:03:22,112 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 0 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-12 01:03:22,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 407 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2023-11-12 01:03:22,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-11-12 01:03:22,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2023-11-12 01:03:22,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 86 states have (on average 1.372093023255814) internal successors, (118), 86 states have internal predecessors, (118), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-12 01:03:22,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 226 transitions. [2023-11-12 01:03:22,137 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 226 transitions. Word has length 52 [2023-11-12 01:03:22,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:03:22,137 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 226 transitions. [2023-11-12 01:03:22,138 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) [2023-11-12 01:03:22,138 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 226 transitions. [2023-11-12 01:03:22,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-12 01:03:22,141 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:03:22,142 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] [2023-11-12 01:03:22,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 01:03:22,142 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:03:22,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:03:22,143 INFO L85 PathProgramCache]: Analyzing trace with hash 2088891589, now seen corresponding path program 1 times [2023-11-12 01:03:22,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:03:22,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082074412] [2023-11-12 01:03:22,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:22,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:03:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:22,439 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-12 01:03:22,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:03:22,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082074412] [2023-11-12 01:03:22,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082074412] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 01:03:22,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543160367] [2023-11-12 01:03:22,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:22,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:03:22,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:03:22,452 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:03:22,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 01:03:22,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:22,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 01:03:22,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:22,967 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-12 01:03:22,967 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:23,076 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-12 01:03:23,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543160367] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 01:03:23,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [781049833] [2023-11-12 01:03:23,102 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2023-11-12 01:03:23,102 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 01:03:23,106 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 01:03:23,112 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 01:03:23,112 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 01:03:49,958 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 01:03:53,364 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse10 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 20)) (.cse13 (+ 16 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset|)) (.cse15 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 12)) (.cse9 (+ |c_~#__CS_thread_lockedon~0.offset| 20)) (.cse12 (+ |c_~#__CS_thread_lockedon~0.offset| 16)) (.cse4 (+ |c_~#data2~0.offset| 4)) (.cse0 (+ |c_~#data1~0.offset| 4)) (.cse16 (+ |c_~#mb~0.offset| 1)) (.cse7 (+ |c_~#ma~0.offset| 1)) (.cse14 (+ |c_~#__CS_thread_lockedon~0.offset| 12)) (.cse17 (+ 5 |c_~#__CS_thread_status~0.offset|)) (.cse2 (+ |c_~#__CS_thread_status~0.offset| 4)) (.cse5 (+ 3 |c_~#__CS_thread_status~0.offset|))) (and (exists ((|v_#memory_$Pointer$.base_174| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_173| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_172| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_171| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_170| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_169| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_168| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_167| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_166| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_242| (Array Int (Array Int Int)))) (let ((.cse1 (select |v_#memory_$Pointer$.base_170| |c_~#__CS_thread_status~0.base|)) (.cse3 (select |v_#memory_$Pointer$.base_173| |c_~#__CS_thread_status~0.base|))) (and (= |v_#memory_$Pointer$.base_167| (store |v_#memory_$Pointer$.base_168| |c_~#data1~0.base| (store (select |v_#memory_$Pointer$.base_168| |c_~#data1~0.base|) .cse0 (select (select |v_#memory_$Pointer$.base_167| |c_~#data1~0.base|) .cse0)))) (= (store |v_#memory_$Pointer$.base_170| |c_~#__CS_thread_status~0.base| (store .cse1 .cse2 (select .cse3 .cse2))) |v_#memory_$Pointer$.base_173|) (= (store |v_#memory_$Pointer$.base_167| |c_~#data2~0.base| (store (select |v_#memory_$Pointer$.base_167| |c_~#data2~0.base|) .cse4 (select (select |v_#memory_$Pointer$.base_166| |c_~#data2~0.base|) .cse4))) |v_#memory_$Pointer$.base_166|) (= (store |v_#memory_$Pointer$.base_242| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_242| |c_~#__CS_thread_status~0.base|) .cse5 (select .cse1 .cse5))) |v_#memory_$Pointer$.base_170|) (= (let ((.cse6 (store |v_#memory_$Pointer$.base_172| |c_~#__CS_thread_lockedon~0.base| (let ((.cse8 (let ((.cse11 (store (select |v_#memory_$Pointer$.base_172| |c_~#__CS_thread_lockedon~0.base|) .cse14 (select (select |v_#memory_$Pointer$.base_172| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse15)))) (store .cse11 .cse12 (select (select (store |v_#memory_$Pointer$.base_172| |c_~#__CS_thread_lockedon~0.base| .cse11) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse13))))) (store .cse8 .cse9 (select (select (store |v_#memory_$Pointer$.base_172| |c_~#__CS_thread_lockedon~0.base| .cse8) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse10)))))) (store .cse6 |c_~#ma~0.base| (store (select .cse6 |c_~#ma~0.base|) .cse7 (select (select |v_#memory_$Pointer$.base_169| |c_~#ma~0.base|) .cse7)))) |v_#memory_$Pointer$.base_169|) (= (store |v_#memory_$Pointer$.base_171| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.base_171| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.base| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|))) |c_#memory_$Pointer$.base|) (= (store |v_#memory_$Pointer$.base_166| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.base_166| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.base_174| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|))) |v_#memory_$Pointer$.base_174|) (= (store |v_#memory_$Pointer$.base_169| |c_~#mb~0.base| (store (select |v_#memory_$Pointer$.base_169| |c_~#mb~0.base|) .cse16 (select (select |v_#memory_$Pointer$.base_168| |c_~#mb~0.base|) .cse16))) |v_#memory_$Pointer$.base_168|) (= |v_#memory_$Pointer$.base_172| (store |v_#memory_$Pointer$.base_173| |c_~#__CS_thread_status~0.base| (store .cse3 .cse17 (select (select |v_#memory_$Pointer$.base_172| |c_~#__CS_thread_status~0.base|) .cse17)))) (= (store |v_#memory_$Pointer$.base_174| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_174| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.base_171| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|))) |v_#memory_$Pointer$.base_171|)))) (exists ((|v_#memory_$Pointer$.offset_170| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_171| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_172| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_173| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_174| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_242| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_166| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_167| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_168| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_169| (Array Int (Array Int Int)))) (let ((.cse19 (select |v_#memory_$Pointer$.offset_170| |c_~#__CS_thread_status~0.base|)) (.cse18 (select |v_#memory_$Pointer$.offset_174| |c_~#__CS_thread_status~0.base|))) (and (= (store |v_#memory_$Pointer$.offset_174| |c_~#__CS_thread_status~0.base| (store .cse18 .cse2 (select .cse19 .cse2))) |v_#memory_$Pointer$.offset_170|) (= |v_#memory_$Pointer$.offset_169| (store |v_#memory_$Pointer$.offset_170| |c_~#__CS_thread_status~0.base| (store .cse19 .cse17 (select (select |v_#memory_$Pointer$.offset_169| |c_~#__CS_thread_status~0.base|) .cse17)))) (= (let ((.cse20 (store |v_#memory_$Pointer$.offset_169| |c_~#__CS_thread_lockedon~0.base| (let ((.cse21 (let ((.cse22 (store (select |v_#memory_$Pointer$.offset_169| |c_~#__CS_thread_lockedon~0.base|) .cse14 (select (select |v_#memory_$Pointer$.offset_169| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse15)))) (store .cse22 .cse12 (select (select (store |v_#memory_$Pointer$.offset_169| |c_~#__CS_thread_lockedon~0.base| .cse22) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse13))))) (store .cse21 .cse9 (select (select (store |v_#memory_$Pointer$.offset_169| |c_~#__CS_thread_lockedon~0.base| .cse21) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse10)))))) (store .cse20 |c_~#ma~0.base| (store (select .cse20 |c_~#ma~0.base|) .cse7 (select (select |v_#memory_$Pointer$.offset_168| |c_~#ma~0.base|) .cse7)))) |v_#memory_$Pointer$.offset_168|) (= |v_#memory_$Pointer$.offset_167| (store |v_#memory_$Pointer$.offset_168| |c_~#mb~0.base| (store (select |v_#memory_$Pointer$.offset_168| |c_~#mb~0.base|) .cse16 (select (select |v_#memory_$Pointer$.offset_167| |c_~#mb~0.base|) .cse16)))) (= (store |v_#memory_$Pointer$.offset_166| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.offset_166| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.offset_172| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|))) |v_#memory_$Pointer$.offset_172|) (= (store |v_#memory_$Pointer$.offset_172| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_172| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.offset_171| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|))) |v_#memory_$Pointer$.offset_171|) (= (store |v_#memory_$Pointer$.offset_167| |c_~#data1~0.base| (store (select |v_#memory_$Pointer$.offset_167| |c_~#data1~0.base|) .cse0 (select (select |v_#memory_$Pointer$.offset_173| |c_~#data1~0.base|) .cse0))) |v_#memory_$Pointer$.offset_173|) (= |v_#memory_$Pointer$.offset_166| (store |v_#memory_$Pointer$.offset_173| |c_~#data2~0.base| (store (select |v_#memory_$Pointer$.offset_173| |c_~#data2~0.base|) .cse4 (select (select |v_#memory_$Pointer$.offset_166| |c_~#data2~0.base|) .cse4)))) (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_171| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.offset_171| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.offset| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|)))) (= (store |v_#memory_$Pointer$.offset_242| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_242| |c_~#__CS_thread_status~0.base|) .cse5 (select .cse18 .cse5))) |v_#memory_$Pointer$.offset_174|)))) (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|))) (<= 3 |c_ULTIMATE.start_main_~j~2#1|) (<= 2 |c_ULTIMATE.start_main_~i~0#1|) (exists ((|v_#memory_int_154| (Array Int (Array Int Int))) (|v_#memory_int_155| (Array Int (Array Int Int))) (|v_#memory_int_156| (Array Int (Array Int Int))) (|v_#memory_int_185| (Array Int (Array Int Int)))) (let ((.cse23 (select |v_#memory_int_155| |c_~#__CS_thread_lockedon~0.base|)) (.cse24 (select |v_#memory_int_156| |c_~#__CS_thread_lockedon~0.base|))) (and (= (store |v_#memory_int_155| |c_~#__CS_thread_lockedon~0.base| (store .cse23 .cse9 (select (select |v_#memory_int_154| |c_~#__CS_thread_lockedon~0.base|) .cse9))) |v_#memory_int_154|) (= (store |v_#memory_int_156| |c_~#__CS_thread_lockedon~0.base| (store .cse24 .cse12 (select .cse23 .cse12))) |v_#memory_int_155|) (= |c_#memory_int| (let ((.cse25 (let ((.cse26 (let ((.cse27 (let ((.cse28 (let ((.cse29 (let ((.cse30 (store |v_#memory_int_154| |c_~#ma~0.base| (store (select |v_#memory_int_154| |c_~#ma~0.base|) .cse7 (select (select |v_#memory_int_154| |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.offset| 1)))))) (store .cse30 |c_~#mb~0.base| (store (select .cse30 |c_~#mb~0.base|) .cse16 (select (select .cse30 |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.offset| 1))))))) (store .cse29 |c_~#data1~0.base| (store (select .cse29 |c_~#data1~0.base|) .cse0 (select (select .cse29 |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.offset| 4))))))) (store .cse28 |c_~#data2~0.base| (store (select .cse28 |c_~#data2~0.base|) .cse4 (select (select .cse28 |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.offset| 4))))))) (store .cse27 |c_~#__CS_thread_born_round~0.base| (store (select .cse27 |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| 0))))) (store .cse26 |c_~#__CS_thread_status~0.base| (store (select .cse26 |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| c_~__THREAD_RUNNING~0))))) (store .cse25 |c_~#__CS_thread_allocated~0.base| (store (select .cse25 |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| 1)))) (= (let ((.cse31 (store |v_#memory_int_185| |c_~#__CS_thread_status~0.base| (let ((.cse32 (let ((.cse33 (store (select |v_#memory_int_185| |c_~#__CS_thread_status~0.base|) .cse5 (select (select |v_#memory_int_185| |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 .cse33 .cse2 (select (select (store |v_#memory_int_185| |c_~#__CS_thread_status~0.base| .cse33) |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 .cse32 .cse17 (select (select (store |v_#memory_int_185| |c_~#__CS_thread_status~0.base| .cse32) |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 .cse31 |c_~#__CS_thread_lockedon~0.base| (store (select .cse31 |c_~#__CS_thread_lockedon~0.base|) .cse14 (select .cse24 .cse14)))) |v_#memory_int_156|)))) (= (select (select |c_#memory_int| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|) |c_ULTIMATE.start_main_#t~mem66#1|) (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 [2023-11-12 01:03:53,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [781049833] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:03:53,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-12 01:03:53,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 4] total 8 [2023-11-12 01:03:53,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912586076] [2023-11-12 01:03:53,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:03:53,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 01:03:53,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:03:53,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 01:03:53,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=26, Unknown=1, NotChecked=10, Total=56 [2023-11-12 01:03:53,377 INFO L87 Difference]: Start difference. First operand 149 states and 226 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) [2023-11-12 01:03:55,487 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] [2023-11-12 01:03:57,536 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse10 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 20)) (.cse13 (+ 16 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset|)) (.cse15 (+ |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 12)) (.cse9 (+ |c_~#__CS_thread_lockedon~0.offset| 20)) (.cse12 (+ |c_~#__CS_thread_lockedon~0.offset| 16)) (.cse4 (+ |c_~#data2~0.offset| 4)) (.cse0 (+ |c_~#data1~0.offset| 4)) (.cse16 (+ |c_~#mb~0.offset| 1)) (.cse7 (+ |c_~#ma~0.offset| 1)) (.cse14 (+ |c_~#__CS_thread_lockedon~0.offset| 12)) (.cse17 (+ 5 |c_~#__CS_thread_status~0.offset|)) (.cse2 (+ |c_~#__CS_thread_status~0.offset| 4)) (.cse5 (+ 3 |c_~#__CS_thread_status~0.offset|)) (.cse34 (= c_~__CS_round~0 0)) (.cse35 (= c_~__CS_thread_index~0 0))) (and (exists ((|v_#memory_$Pointer$.base_174| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_173| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_172| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_171| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_170| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_169| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_168| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_167| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_166| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_242| (Array Int (Array Int Int)))) (let ((.cse1 (select |v_#memory_$Pointer$.base_170| |c_~#__CS_thread_status~0.base|)) (.cse3 (select |v_#memory_$Pointer$.base_173| |c_~#__CS_thread_status~0.base|))) (and (= |v_#memory_$Pointer$.base_167| (store |v_#memory_$Pointer$.base_168| |c_~#data1~0.base| (store (select |v_#memory_$Pointer$.base_168| |c_~#data1~0.base|) .cse0 (select (select |v_#memory_$Pointer$.base_167| |c_~#data1~0.base|) .cse0)))) (= (store |v_#memory_$Pointer$.base_170| |c_~#__CS_thread_status~0.base| (store .cse1 .cse2 (select .cse3 .cse2))) |v_#memory_$Pointer$.base_173|) (= (store |v_#memory_$Pointer$.base_167| |c_~#data2~0.base| (store (select |v_#memory_$Pointer$.base_167| |c_~#data2~0.base|) .cse4 (select (select |v_#memory_$Pointer$.base_166| |c_~#data2~0.base|) .cse4))) |v_#memory_$Pointer$.base_166|) (= (store |v_#memory_$Pointer$.base_242| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_242| |c_~#__CS_thread_status~0.base|) .cse5 (select .cse1 .cse5))) |v_#memory_$Pointer$.base_170|) (= (let ((.cse6 (store |v_#memory_$Pointer$.base_172| |c_~#__CS_thread_lockedon~0.base| (let ((.cse8 (let ((.cse11 (store (select |v_#memory_$Pointer$.base_172| |c_~#__CS_thread_lockedon~0.base|) .cse14 (select (select |v_#memory_$Pointer$.base_172| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse15)))) (store .cse11 .cse12 (select (select (store |v_#memory_$Pointer$.base_172| |c_~#__CS_thread_lockedon~0.base| .cse11) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse13))))) (store .cse8 .cse9 (select (select (store |v_#memory_$Pointer$.base_172| |c_~#__CS_thread_lockedon~0.base| .cse8) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse10)))))) (store .cse6 |c_~#ma~0.base| (store (select .cse6 |c_~#ma~0.base|) .cse7 (select (select |v_#memory_$Pointer$.base_169| |c_~#ma~0.base|) .cse7)))) |v_#memory_$Pointer$.base_169|) (= (store |v_#memory_$Pointer$.base_171| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.base_171| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.base| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|))) |c_#memory_$Pointer$.base|) (= (store |v_#memory_$Pointer$.base_166| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.base_166| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.base_174| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|))) |v_#memory_$Pointer$.base_174|) (= (store |v_#memory_$Pointer$.base_169| |c_~#mb~0.base| (store (select |v_#memory_$Pointer$.base_169| |c_~#mb~0.base|) .cse16 (select (select |v_#memory_$Pointer$.base_168| |c_~#mb~0.base|) .cse16))) |v_#memory_$Pointer$.base_168|) (= |v_#memory_$Pointer$.base_172| (store |v_#memory_$Pointer$.base_173| |c_~#__CS_thread_status~0.base| (store .cse3 .cse17 (select (select |v_#memory_$Pointer$.base_172| |c_~#__CS_thread_status~0.base|) .cse17)))) (= (store |v_#memory_$Pointer$.base_174| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.base_174| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.base_171| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|))) |v_#memory_$Pointer$.base_171|)))) (exists ((|v_#memory_$Pointer$.offset_170| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_171| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_172| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_173| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_174| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_242| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_166| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_167| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_168| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_169| (Array Int (Array Int Int)))) (let ((.cse19 (select |v_#memory_$Pointer$.offset_170| |c_~#__CS_thread_status~0.base|)) (.cse18 (select |v_#memory_$Pointer$.offset_174| |c_~#__CS_thread_status~0.base|))) (and (= (store |v_#memory_$Pointer$.offset_174| |c_~#__CS_thread_status~0.base| (store .cse18 .cse2 (select .cse19 .cse2))) |v_#memory_$Pointer$.offset_170|) (= |v_#memory_$Pointer$.offset_169| (store |v_#memory_$Pointer$.offset_170| |c_~#__CS_thread_status~0.base| (store .cse19 .cse17 (select (select |v_#memory_$Pointer$.offset_169| |c_~#__CS_thread_status~0.base|) .cse17)))) (= (let ((.cse20 (store |v_#memory_$Pointer$.offset_169| |c_~#__CS_thread_lockedon~0.base| (let ((.cse21 (let ((.cse22 (store (select |v_#memory_$Pointer$.offset_169| |c_~#__CS_thread_lockedon~0.base|) .cse14 (select (select |v_#memory_$Pointer$.offset_169| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse15)))) (store .cse22 .cse12 (select (select (store |v_#memory_$Pointer$.offset_169| |c_~#__CS_thread_lockedon~0.base| .cse22) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse13))))) (store .cse21 .cse9 (select (select (store |v_#memory_$Pointer$.offset_169| |c_~#__CS_thread_lockedon~0.base| .cse21) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) .cse10)))))) (store .cse20 |c_~#ma~0.base| (store (select .cse20 |c_~#ma~0.base|) .cse7 (select (select |v_#memory_$Pointer$.offset_168| |c_~#ma~0.base|) .cse7)))) |v_#memory_$Pointer$.offset_168|) (= |v_#memory_$Pointer$.offset_167| (store |v_#memory_$Pointer$.offset_168| |c_~#mb~0.base| (store (select |v_#memory_$Pointer$.offset_168| |c_~#mb~0.base|) .cse16 (select (select |v_#memory_$Pointer$.offset_167| |c_~#mb~0.base|) .cse16)))) (= (store |v_#memory_$Pointer$.offset_166| |c_~#__CS_thread_born_round~0.base| (store (select |v_#memory_$Pointer$.offset_166| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| (select (select |v_#memory_$Pointer$.offset_172| |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset|))) |v_#memory_$Pointer$.offset_172|) (= (store |v_#memory_$Pointer$.offset_172| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_172| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| (select (select |v_#memory_$Pointer$.offset_171| |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset|))) |v_#memory_$Pointer$.offset_171|) (= (store |v_#memory_$Pointer$.offset_167| |c_~#data1~0.base| (store (select |v_#memory_$Pointer$.offset_167| |c_~#data1~0.base|) .cse0 (select (select |v_#memory_$Pointer$.offset_173| |c_~#data1~0.base|) .cse0))) |v_#memory_$Pointer$.offset_173|) (= |v_#memory_$Pointer$.offset_166| (store |v_#memory_$Pointer$.offset_173| |c_~#data2~0.base| (store (select |v_#memory_$Pointer$.offset_173| |c_~#data2~0.base|) .cse4 (select (select |v_#memory_$Pointer$.offset_166| |c_~#data2~0.base|) .cse4)))) (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_171| |c_~#__CS_thread_allocated~0.base| (store (select |v_#memory_$Pointer$.offset_171| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| (select (select |c_#memory_$Pointer$.offset| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|)))) (= (store |v_#memory_$Pointer$.offset_242| |c_~#__CS_thread_status~0.base| (store (select |v_#memory_$Pointer$.offset_242| |c_~#__CS_thread_status~0.base|) .cse5 (select .cse18 .cse5))) |v_#memory_$Pointer$.offset_174|)))) (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|))) (<= 3 |c_ULTIMATE.start_main_~j~2#1|) (<= 2 |c_ULTIMATE.start_main_~i~0#1|) (exists ((|v_#memory_int_154| (Array Int (Array Int Int))) (|v_#memory_int_155| (Array Int (Array Int Int))) (|v_#memory_int_156| (Array Int (Array Int Int))) (|v_#memory_int_185| (Array Int (Array Int Int)))) (let ((.cse23 (select |v_#memory_int_155| |c_~#__CS_thread_lockedon~0.base|)) (.cse24 (select |v_#memory_int_156| |c_~#__CS_thread_lockedon~0.base|))) (and (= (store |v_#memory_int_155| |c_~#__CS_thread_lockedon~0.base| (store .cse23 .cse9 (select (select |v_#memory_int_154| |c_~#__CS_thread_lockedon~0.base|) .cse9))) |v_#memory_int_154|) (= (store |v_#memory_int_156| |c_~#__CS_thread_lockedon~0.base| (store .cse24 .cse12 (select .cse23 .cse12))) |v_#memory_int_155|) (= |c_#memory_int| (let ((.cse25 (let ((.cse26 (let ((.cse27 (let ((.cse28 (let ((.cse29 (let ((.cse30 (store |v_#memory_int_154| |c_~#ma~0.base| (store (select |v_#memory_int_154| |c_~#ma~0.base|) .cse7 (select (select |v_#memory_int_154| |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.offset| 1)))))) (store .cse30 |c_~#mb~0.base| (store (select .cse30 |c_~#mb~0.base|) .cse16 (select (select .cse30 |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.offset| 1))))))) (store .cse29 |c_~#data1~0.base| (store (select .cse29 |c_~#data1~0.base|) .cse0 (select (select .cse29 |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.offset| 4))))))) (store .cse28 |c_~#data2~0.base| (store (select .cse28 |c_~#data2~0.base|) .cse4 (select (select .cse28 |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.base|) (+ |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.offset| 4))))))) (store .cse27 |c_~#__CS_thread_born_round~0.base| (store (select .cse27 |c_~#__CS_thread_born_round~0.base|) |c_~#__CS_thread_born_round~0.offset| 0))))) (store .cse26 |c_~#__CS_thread_status~0.base| (store (select .cse26 |c_~#__CS_thread_status~0.base|) |c_~#__CS_thread_status~0.offset| c_~__THREAD_RUNNING~0))))) (store .cse25 |c_~#__CS_thread_allocated~0.base| (store (select .cse25 |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset| 1)))) (= (let ((.cse31 (store |v_#memory_int_185| |c_~#__CS_thread_status~0.base| (let ((.cse32 (let ((.cse33 (store (select |v_#memory_int_185| |c_~#__CS_thread_status~0.base|) .cse5 (select (select |v_#memory_int_185| |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 .cse33 .cse2 (select (select (store |v_#memory_int_185| |c_~#__CS_thread_status~0.base| .cse33) |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 .cse32 .cse17 (select (select (store |v_#memory_int_185| |c_~#__CS_thread_status~0.base| .cse32) |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 .cse31 |c_~#__CS_thread_lockedon~0.base| (store (select .cse31 |c_~#__CS_thread_lockedon~0.base|) .cse14 (select .cse24 .cse14)))) |v_#memory_int_156|)))) (= (select (select |c_#memory_int| |c_~#__CS_thread_allocated~0.base|) |c_~#__CS_thread_allocated~0.offset|) |c_ULTIMATE.start_main_#t~mem66#1|) (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)) .cse34 .cse35 (or (< 2 |c_ULTIMATE.start_main_~j~2#1|) (let ((.cse37 (+ |c_#StackHeapBarrier| 1)) (.cse39 (select |c_#memory_int| 9)) (.cse42 (select |c_#memory_int| 4)) (.cse43 (select |c_#memory_int| 7)) (.cse45 (select |c_#memory_int| 1)) (.cse41 (select |c_#memory_int| 3)) (.cse44 (select |c_#memory_$Pointer$.base| 6)) (.cse38 (select |c_#memory_int| 5)) (.cse40 (select |c_#memory_$Pointer$.offset| 6)) (.cse51 (select |c_#memory_int| 10)) (.cse36 (select |c_#memory_int| 8))) (and (= (select .cse36 1) 0) (<= .cse37 |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.base|) (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 .cse38 2) 0) (= (select .cse38 5) 0) (= 2 c_~__THREAD_FINISHED~0) (= |c_~#__CS_thread_born_round~0.offset| 0) (<= .cse37 |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.base|) (<= .cse37 |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.base|) (= c_~__CS_ret_FINISHED~0 4) (<= .cse37 |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.base|) (= 5 |c_~#__CS_thread_status~0.base|) (= 6 |c_~#__CS_thread_lockedon~0.base|) (<= .cse37 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (= 2 c_~__CS_ret_ERROR~0) (= (select .cse39 0) 0) (= 0 (select .cse40 16)) (= (select .cse41 0) 0) (= |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.offset| 0) (= (select .cse42 0) 0) (= c_~__CS_ret~0 0) (<= 1 |c_#StackHeapBarrier|) (= (select .cse43 0) 0) (= |c_ULTIMATE.start_main_~i~0#1| 0) (= (select .cse44 12) 0) (= |c_~#__CS_thread_born_round~0.base| 4) (exists ((|v_ULTIMATE.start_ULTIMATE.init_#t~nondet102#1_7| Int) (v_~__CS_u~0.data2_8 (Array Int Int))) (= c_~__CS_u~0.data2 (store (store v_~__CS_u~0.data2_8 0 |v_ULTIMATE.start_ULTIMATE.init_#t~nondet102#1_7|) 1 (select c_~__CS_u~0.data2 1)))) (= |c_~#data2~0.offset| 0) (= (select .cse41 1) 0) (<= .cse37 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) (= 9 |c_~#data1~0.base|) (= |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.offset| 0) (= (select .cse38 4) 0) (= 3 |c_~#__CS_thread_allocated~0.base|) (= |c_~#ma~0.offset| 0) (= (select .cse45 1) 0) (= |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.offset| 0) (exists ((v_~__CS_u~0.mb_8 (Array Int Int)) (|v_ULTIMATE.start_ULTIMATE.init_#t~nondet98#1_7| Int)) (= (store (store v_~__CS_u~0.mb_8 0 |v_ULTIMATE.start_ULTIMATE.init_#t~nondet98#1_7|) 1 (select c_~__CS_u~0.mb 1)) c_~__CS_u~0.mb)) (exists ((|v_#valid_89| (Array Int Int))) (let ((.cse47 (store |v_#valid_89| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| 1))) (let ((.cse50 (store .cse47 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| 1))) (let ((.cse48 (store .cse50 |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.base| 1))) (let ((.cse49 (store .cse48 |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.base| 1))) (let ((.cse46 (store .cse49 |c_ULTIMATE.start_main_~#__CS_cp_data1~0#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 .cse46 |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.base| 1)) (= (select .cse47 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base|) 0) (= (select |v_#valid_89| 7) 1) (= (select .cse48 |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.base|) 0) (= (select |v_#valid_89| 0) 0) (= (select |v_#valid_89| 3) 1) (= (select .cse46 |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.base|) 0) (= 1 (select |v_#valid_89| 10)) (= (select .cse49 |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.base|) 0) (= (select |v_#valid_89| 8) 1) (= (select .cse50 |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.base|) 0) (= (select |v_#valid_89| 6) 1) (= (select |v_#valid_89| 5) 1) (= (select |v_#valid_89| 4) 1) (= (select |v_#valid_89| 9) 1)))))))) (= (select .cse44 0) 0) (= (select .cse39 4) 0) (= (select .cse38 3) 0) (= (select .cse44 4) 0) (= (select .cse42 1) 0) (= c_~__CS_error~0 0) (= c_~__THREAD_UNUSED~0 0) (= (select .cse40 12) 0) (= (select .cse42 2) 0) (exists ((v_~__CS_u~0.ma_8 (Array Int Int))) (= c_~__CS_u~0.ma (store (store v_~__CS_u~0.ma_8 0 0) 1 0))) (= |c_~#mb~0.base| 8) (= (select .cse40 4) 0) (= (select .cse43 1) 0) (= (select .cse38 0) 0) (= (select .cse40 20) 0) (= (select .cse44 16) 0) (= 1 c_~__THREAD_RUNNING~0) (= |c_~#__CS_thread_status~0.offset| 0) (= 48 (select .cse45 0)) (= 0 (select .cse44 20)) (= (select .cse41 2) 0) (= (select .cse51 0) 0) (= |c_~#data1~0.offset| 0) (= (select .cse44 8) 0) (= (select .cse40 0) 0) (= (select .cse38 1) 0) (= (select .cse40 8) 0) (= |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| 0) (exists ((|v_#length_22| (Array Int Int))) (and (= 16 (select |v_#length_22| 2)) (= (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_ma~0#1.base| 2) |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.base| 2) |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.base| 8) |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.base| 8) |c_#length|) (= (select |v_#length_22| 3) 3) (= (select |v_#length_22| 5) 6) (= (select |v_#length_22| 1) 2) (= 2 (select |v_#length_22| 7)) (= 3 (select |v_#length_22| 4)) (= (select |v_#length_22| 10) 8) (= (select |v_#length_22| 9) 8) (= (select |v_#length_22| 6) 24) (= 2 (select |v_#length_22| 8)))) (= |c_~#mb~0.offset| 0) .cse34 .cse35 (= |c_~#__CS_thread_allocated~0.offset| 0) (= (select .cse51 4) 0) (= |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.offset| 0) (= 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)) (exists ((|v_ULTIMATE.start_ULTIMATE.init_#t~nondet100#1_7| Int) (v_~__CS_u~0.data1_8 (Array Int Int))) (= (store (store v_~__CS_u~0.data1_8 0 |v_ULTIMATE.start_ULTIMATE.init_#t~nondet100#1_7|) 1 (select c_~__CS_u~0.data1 1)) c_~__CS_u~0.data1)) (= |c_~#__CS_thread_lockedon~0.offset| 0) (= |c_~#data2~0.base| 10) (= (select .cse36 0) 0) (= |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.offset| 0) (= 7 |c_~#ma~0.base|)))))) is different from false [2023-11-12 01:03:58,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:03:58,465 INFO L93 Difference]: Finished difference Result 290 states and 440 transitions. [2023-11-12 01:03:58,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 01:03:58,466 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 [2023-11-12 01:03:58,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:03:58,468 INFO L225 Difference]: With dead ends: 290 [2023-11-12 01:03:58,469 INFO L226 Difference]: Without dead ends: 149 [2023-11-12 01:03:58,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 154 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=21, Invalid=27, Unknown=2, NotChecked=22, Total=72 [2023-11-12 01:03:58,471 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 0 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 63 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-12 01:03:58,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 486 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 1 Unknown, 63 Unchecked, 3.0s Time] [2023-11-12 01:03:58,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-11-12 01:03:58,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2023-11-12 01:03:58,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 86 states have (on average 1.3604651162790697) internal successors, (117), 86 states have internal predecessors, (117), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-12 01:03:58,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 225 transitions. [2023-11-12 01:03:58,499 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 225 transitions. Word has length 53 [2023-11-12 01:03:58,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:03:58,500 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 225 transitions. [2023-11-12 01:03:58,500 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) [2023-11-12 01:03:58,500 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 225 transitions. [2023-11-12 01:03:58,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-12 01:03:58,505 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:03:58,505 INFO L195 NwaCegarLoop]: trace histogram [11, 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] [2023-11-12 01:03:58,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 01:03:58,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:03:58,712 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:03:58,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:03:58,713 INFO L85 PathProgramCache]: Analyzing trace with hash -992262948, now seen corresponding path program 1 times [2023-11-12 01:03:58,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:03:58,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402902379] [2023-11-12 01:03:58,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:58,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:03:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:59,139 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-12 01:03:59,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:03:59,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402902379] [2023-11-12 01:03:59,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402902379] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 01:03:59,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163478555] [2023-11-12 01:03:59,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:59,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:03:59,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:03:59,148 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:03:59,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b3b2790-8f09-4273-afef-3cc890c685b0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 01:03:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:59,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 787 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 01:03:59,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:59,576 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-12 01:03:59,576 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:59,640 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-12 01:03:59,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163478555] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 01:03:59,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1794097023] [2023-11-12 01:03:59,646 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2023-11-12 01:03:59,646 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 01:03:59,646 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 01:03:59,647 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 01:03:59,647 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs